Bioinspired honeycomb-like 3D architectures self-assembled from chitosan as dual-functional membrane for effective adsorption and detection of copper ion
Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic io...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Pan, Lei [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Impact of North Atlantic-East Asian teleconnections on extremely high January PM - Kim, Jeong-Hun ELSEVIER, 2021, the official journal of the International Zeolite Association, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:335 ; year:2022 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.micromeso.2022.111859 |
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ELV057256284 |
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| 245 | 1 | 0 | |a Bioinspired honeycomb-like 3D architectures self-assembled from chitosan as dual-functional membrane for effective adsorption and detection of copper ion |
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| 520 | |a Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. | ||
| 520 | |a Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. | ||
| 650 | 7 | |a Fluorescent detection |2 Elsevier | |
| 650 | 7 | |a Copper adsorption |2 Elsevier | |
| 650 | 7 | |a Carbon dots |2 Elsevier | |
| 650 | 7 | |a Ice templating |2 Elsevier | |
| 700 | 1 | |a Wang, Chenyang |4 oth | |
| 700 | 1 | |a Wu, Wenrui |4 oth | |
| 700 | 1 | |a Li, Xiaowei |4 oth | |
| 700 | 1 | |a Ma, Shujuan |4 oth | |
| 700 | 1 | |a Li, Cong |4 oth | |
| 700 | 1 | |a Shen, Yehua |4 oth | |
| 700 | 1 | |a Ou, Junjie |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Kim, Jeong-Hun ELSEVIER |t Impact of North Atlantic-East Asian teleconnections on extremely high January PM |d 2021 |d the official journal of the International Zeolite Association |g Amsterdam [u.a.] |w (DE-627)ELV006778283 |
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10.1016/j.micromeso.2022.111859 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001928.pica (DE-627)ELV057256284 (ELSEVIER)S1387-1811(22)00177-9 DE-627 ger DE-627 rakwb eng 333.7 570 690 VZ BIODIV DE-30 fid 48.00 bkl Pan, Lei verfasserin aut Bioinspired honeycomb-like 3D architectures self-assembled from chitosan as dual-functional membrane for effective adsorption and detection of copper ion 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. Fluorescent detection Elsevier Copper adsorption Elsevier Carbon dots Elsevier Ice templating Elsevier Wang, Chenyang oth Wu, Wenrui oth Li, Xiaowei oth Ma, Shujuan oth Li, Cong oth Shen, Yehua oth Ou, Junjie oth Enthalten in Elsevier Kim, Jeong-Hun ELSEVIER Impact of North Atlantic-East Asian teleconnections on extremely high January PM 2021 the official journal of the International Zeolite Association Amsterdam [u.a.] (DE-627)ELV006778283 volume:335 year:2022 pages:0 https://doi.org/10.1016/j.micromeso.2022.111859 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA SSG-OPC-FOR 48.00 Land- und Forstwirtschaft: Allgemeines VZ AR 335 2022 0 |
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10.1016/j.micromeso.2022.111859 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001928.pica (DE-627)ELV057256284 (ELSEVIER)S1387-1811(22)00177-9 DE-627 ger DE-627 rakwb eng 333.7 570 690 VZ BIODIV DE-30 fid 48.00 bkl Pan, Lei verfasserin aut Bioinspired honeycomb-like 3D architectures self-assembled from chitosan as dual-functional membrane for effective adsorption and detection of copper ion 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. Fluorescent detection Elsevier Copper adsorption Elsevier Carbon dots Elsevier Ice templating Elsevier Wang, Chenyang oth Wu, Wenrui oth Li, Xiaowei oth Ma, Shujuan oth Li, Cong oth Shen, Yehua oth Ou, Junjie oth Enthalten in Elsevier Kim, Jeong-Hun ELSEVIER Impact of North Atlantic-East Asian teleconnections on extremely high January PM 2021 the official journal of the International Zeolite Association Amsterdam [u.a.] (DE-627)ELV006778283 volume:335 year:2022 pages:0 https://doi.org/10.1016/j.micromeso.2022.111859 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA SSG-OPC-FOR 48.00 Land- und Forstwirtschaft: Allgemeines VZ AR 335 2022 0 |
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10.1016/j.micromeso.2022.111859 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001928.pica (DE-627)ELV057256284 (ELSEVIER)S1387-1811(22)00177-9 DE-627 ger DE-627 rakwb eng 333.7 570 690 VZ BIODIV DE-30 fid 48.00 bkl Pan, Lei verfasserin aut Bioinspired honeycomb-like 3D architectures self-assembled from chitosan as dual-functional membrane for effective adsorption and detection of copper ion 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. Fluorescent detection Elsevier Copper adsorption Elsevier Carbon dots Elsevier Ice templating Elsevier Wang, Chenyang oth Wu, Wenrui oth Li, Xiaowei oth Ma, Shujuan oth Li, Cong oth Shen, Yehua oth Ou, Junjie oth Enthalten in Elsevier Kim, Jeong-Hun ELSEVIER Impact of North Atlantic-East Asian teleconnections on extremely high January PM 2021 the official journal of the International Zeolite Association Amsterdam [u.a.] (DE-627)ELV006778283 volume:335 year:2022 pages:0 https://doi.org/10.1016/j.micromeso.2022.111859 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA SSG-OPC-FOR 48.00 Land- und Forstwirtschaft: Allgemeines VZ AR 335 2022 0 |
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10.1016/j.micromeso.2022.111859 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001928.pica (DE-627)ELV057256284 (ELSEVIER)S1387-1811(22)00177-9 DE-627 ger DE-627 rakwb eng 333.7 570 690 VZ BIODIV DE-30 fid 48.00 bkl Pan, Lei verfasserin aut Bioinspired honeycomb-like 3D architectures self-assembled from chitosan as dual-functional membrane for effective adsorption and detection of copper ion 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. Fluorescent detection Elsevier Copper adsorption Elsevier Carbon dots Elsevier Ice templating Elsevier Wang, Chenyang oth Wu, Wenrui oth Li, Xiaowei oth Ma, Shujuan oth Li, Cong oth Shen, Yehua oth Ou, Junjie oth Enthalten in Elsevier Kim, Jeong-Hun ELSEVIER Impact of North Atlantic-East Asian teleconnections on extremely high January PM 2021 the official journal of the International Zeolite Association Amsterdam [u.a.] (DE-627)ELV006778283 volume:335 year:2022 pages:0 https://doi.org/10.1016/j.micromeso.2022.111859 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA SSG-OPC-FOR 48.00 Land- und Forstwirtschaft: Allgemeines VZ AR 335 2022 0 |
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10.1016/j.micromeso.2022.111859 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001928.pica (DE-627)ELV057256284 (ELSEVIER)S1387-1811(22)00177-9 DE-627 ger DE-627 rakwb eng 333.7 570 690 VZ BIODIV DE-30 fid 48.00 bkl Pan, Lei verfasserin aut Bioinspired honeycomb-like 3D architectures self-assembled from chitosan as dual-functional membrane for effective adsorption and detection of copper ion 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. Fluorescent detection Elsevier Copper adsorption Elsevier Carbon dots Elsevier Ice templating Elsevier Wang, Chenyang oth Wu, Wenrui oth Li, Xiaowei oth Ma, Shujuan oth Li, Cong oth Shen, Yehua oth Ou, Junjie oth Enthalten in Elsevier Kim, Jeong-Hun ELSEVIER Impact of North Atlantic-East Asian teleconnections on extremely high January PM 2021 the official journal of the International Zeolite Association Amsterdam [u.a.] (DE-627)ELV006778283 volume:335 year:2022 pages:0 https://doi.org/10.1016/j.micromeso.2022.111859 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA SSG-OPC-FOR 48.00 Land- und Forstwirtschaft: Allgemeines VZ AR 335 2022 0 |
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bioinspired honeycomb-like 3d architectures self-assembled from chitosan as dual-functional membrane for effective adsorption and detection of copper ion |
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Bioinspired honeycomb-like 3D architectures self-assembled from chitosan as dual-functional membrane for effective adsorption and detection of copper ion |
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Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. |
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Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. |
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Metal ions released through industrial and human activities are difficult to degrade in the environment, and copper (II) ingestion and accumulation in the body would cause harm to human health and even disease. The environmentally friendly materials for simultaneous detection and removal of toxic ions are urgently required to be developed. Herein, carbon dots (CDs) with excellent optical properties as crosslinking agent introduced into chitosan-based membranes with freeze casting technique. The as-synthesized fluorescent membranes (CS-CDs) could generate fluorescent response to copper (II) with adsorption capacity (12.48–49.97 mg/g). Based on the stable fluorescence signal of CS-CDs and fluorescence quenching with copper (II), a simple fluorescence spectrometry method for detection of copper (II) was established. The fluorescence intensity of CS-CD-4 decreased linearly with copper (II) concentrations ranging from 0 to 350 μmol/L. Moreover, the 3D regular honeycomb-like porous structure of CS-CDs facilitated the mass transfer and provided more effective sorption sites. The adsorption isotherm and kinetics were more suitable for the Langmuir model (R = 0.9927) and pseudo-second-order model (R = 0.9989), which indicated the adsorption were monolayer adsorption and chemisorption, respectively. As a result, the CS-CDs with dual-functionalities of detecting and adsorbing copper (II) were successfully fabricated, demonstrating the potential application prospect in environmental protection. |
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Wang, Chenyang Wu, Wenrui Li, Xiaowei Ma, Shujuan Li, Cong Shen, Yehua Ou, Junjie |
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