Construction of multi-enzyme cascade biomimetic carbon sequestration system based on photocatalytic coenzyme NADH regeneration
CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this resear...
Ausführliche Beschreibung
Autor*in: |
Zhou, Junhui [verfasserIn] |
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Englisch |
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2020transfer abstract |
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Enthalten in: Technologies and practice of CO - HU, Yongle ELSEVIER, 2019, an international journal : the official journal of WREN, The World Renewable Energy Network, Amsterdam [u.a.] |
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Übergeordnetes Werk: |
volume:156 ; year:2020 ; pages:107-116 ; extent:10 |
Links: |
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DOI / URN: |
10.1016/j.renene.2020.04.022 |
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ELV050575899 |
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245 | 1 | 0 | |a Construction of multi-enzyme cascade biomimetic carbon sequestration system based on photocatalytic coenzyme NADH regeneration |
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520 | |a CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. | ||
520 | |a CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. | ||
650 | 7 | |a Biological carbon fixation |2 Elsevier | |
650 | 7 | |a Photocatalysis |2 Elsevier | |
650 | 7 | |a NADH regeneration |2 Elsevier | |
650 | 7 | |a Multiple enzyme fixation |2 Elsevier | |
650 | 7 | |a Multiple enzyme cascade |2 Elsevier | |
700 | 1 | |a Yu, Senshen |4 oth | |
700 | 1 | |a Kang, Helong |4 oth | |
700 | 1 | |a He, Rui |4 oth | |
700 | 1 | |a Ning, Yuxin |4 oth | |
700 | 1 | |a Yu, Yingyue |4 oth | |
700 | 1 | |a Wang, Meng |4 oth | |
700 | 1 | |a Chen, Biqiang |4 oth | |
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10.1016/j.renene.2020.04.022 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001065.pica (DE-627)ELV050575899 (ELSEVIER)S0960-1481(20)30550-4 DE-627 ger DE-627 rakwb eng Zhou, Junhui verfasserin aut Construction of multi-enzyme cascade biomimetic carbon sequestration system based on photocatalytic coenzyme NADH regeneration 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. Biological carbon fixation Elsevier Photocatalysis Elsevier NADH regeneration Elsevier Multiple enzyme fixation Elsevier Multiple enzyme cascade Elsevier Yu, Senshen oth Kang, Helong oth He, Rui oth Ning, Yuxin oth Yu, Yingyue oth Wang, Meng oth Chen, Biqiang oth Enthalten in Elsevier Science HU, Yongle ELSEVIER Technologies and practice of CO 2019 an international journal : the official journal of WREN, The World Renewable Energy Network Amsterdam [u.a.] (DE-627)ELV002723662 volume:156 year:2020 pages:107-116 extent:10 https://doi.org/10.1016/j.renene.2020.04.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U AR 156 2020 107-116 10 |
spelling |
10.1016/j.renene.2020.04.022 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001065.pica (DE-627)ELV050575899 (ELSEVIER)S0960-1481(20)30550-4 DE-627 ger DE-627 rakwb eng Zhou, Junhui verfasserin aut Construction of multi-enzyme cascade biomimetic carbon sequestration system based on photocatalytic coenzyme NADH regeneration 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. Biological carbon fixation Elsevier Photocatalysis Elsevier NADH regeneration Elsevier Multiple enzyme fixation Elsevier Multiple enzyme cascade Elsevier Yu, Senshen oth Kang, Helong oth He, Rui oth Ning, Yuxin oth Yu, Yingyue oth Wang, Meng oth Chen, Biqiang oth Enthalten in Elsevier Science HU, Yongle ELSEVIER Technologies and practice of CO 2019 an international journal : the official journal of WREN, The World Renewable Energy Network Amsterdam [u.a.] (DE-627)ELV002723662 volume:156 year:2020 pages:107-116 extent:10 https://doi.org/10.1016/j.renene.2020.04.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U AR 156 2020 107-116 10 |
allfields_unstemmed |
10.1016/j.renene.2020.04.022 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001065.pica (DE-627)ELV050575899 (ELSEVIER)S0960-1481(20)30550-4 DE-627 ger DE-627 rakwb eng Zhou, Junhui verfasserin aut Construction of multi-enzyme cascade biomimetic carbon sequestration system based on photocatalytic coenzyme NADH regeneration 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. Biological carbon fixation Elsevier Photocatalysis Elsevier NADH regeneration Elsevier Multiple enzyme fixation Elsevier Multiple enzyme cascade Elsevier Yu, Senshen oth Kang, Helong oth He, Rui oth Ning, Yuxin oth Yu, Yingyue oth Wang, Meng oth Chen, Biqiang oth Enthalten in Elsevier Science HU, Yongle ELSEVIER Technologies and practice of CO 2019 an international journal : the official journal of WREN, The World Renewable Energy Network Amsterdam [u.a.] (DE-627)ELV002723662 volume:156 year:2020 pages:107-116 extent:10 https://doi.org/10.1016/j.renene.2020.04.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U AR 156 2020 107-116 10 |
allfieldsGer |
10.1016/j.renene.2020.04.022 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001065.pica (DE-627)ELV050575899 (ELSEVIER)S0960-1481(20)30550-4 DE-627 ger DE-627 rakwb eng Zhou, Junhui verfasserin aut Construction of multi-enzyme cascade biomimetic carbon sequestration system based on photocatalytic coenzyme NADH regeneration 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. Biological carbon fixation Elsevier Photocatalysis Elsevier NADH regeneration Elsevier Multiple enzyme fixation Elsevier Multiple enzyme cascade Elsevier Yu, Senshen oth Kang, Helong oth He, Rui oth Ning, Yuxin oth Yu, Yingyue oth Wang, Meng oth Chen, Biqiang oth Enthalten in Elsevier Science HU, Yongle ELSEVIER Technologies and practice of CO 2019 an international journal : the official journal of WREN, The World Renewable Energy Network Amsterdam [u.a.] (DE-627)ELV002723662 volume:156 year:2020 pages:107-116 extent:10 https://doi.org/10.1016/j.renene.2020.04.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U AR 156 2020 107-116 10 |
allfieldsSound |
10.1016/j.renene.2020.04.022 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001065.pica (DE-627)ELV050575899 (ELSEVIER)S0960-1481(20)30550-4 DE-627 ger DE-627 rakwb eng Zhou, Junhui verfasserin aut Construction of multi-enzyme cascade biomimetic carbon sequestration system based on photocatalytic coenzyme NADH regeneration 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. Biological carbon fixation Elsevier Photocatalysis Elsevier NADH regeneration Elsevier Multiple enzyme fixation Elsevier Multiple enzyme cascade Elsevier Yu, Senshen oth Kang, Helong oth He, Rui oth Ning, Yuxin oth Yu, Yingyue oth Wang, Meng oth Chen, Biqiang oth Enthalten in Elsevier Science HU, Yongle ELSEVIER Technologies and practice of CO 2019 an international journal : the official journal of WREN, The World Renewable Energy Network Amsterdam [u.a.] (DE-627)ELV002723662 volume:156 year:2020 pages:107-116 extent:10 https://doi.org/10.1016/j.renene.2020.04.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U AR 156 2020 107-116 10 |
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The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. 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construction of multi-enzyme cascade biomimetic carbon sequestration system based on photocatalytic coenzyme nadh regeneration |
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Construction of multi-enzyme cascade biomimetic carbon sequestration system based on photocatalytic coenzyme NADH regeneration |
abstract |
CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. |
abstractGer |
CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. |
abstract_unstemmed |
CO2 is one of the main gases leading to the greenhouse effect. The use of a multi-enzyme biological carbon capture and utilization method can reduce the concentration of CO2. However, most oxidoreductases require NADH as a coenzyme, which is too expensive to afford for most situation. In this research, NADH was regenerated using photocatalysis and CO2 was converted to formaldehyde by FateDH and FaldDH gradually. TCPP and ZIF-8 were successfully combined to construct a photocatalytic multi-enzyme cascade biomimetic carbon sequestration system for the first time. TCPP was used as the photocatalyst and ZIF-8 was used as the multi-enzyme immobilized carrier for FateDH and FaldDH. The TCPP content, material dosage, pH of reaction solution and the ratio of the two enzymes were optimized in this study. The results indicated that when reacting under visible light for 3 h, using 1 mg/mL 3% TCPP ZIF-8 at pH 8.0 PBS condition, it has the highest NADH reduction rate, reaching 75.04%. It was also found that when FateDH: FaldDH = 2:1, the formaldehyde yield can reach up to 7.74 μM. And the formaldehyde conversion rate reached 77.37%. In addition, this composite system retained 52.93% of residual activity after 10 batches of re-use. |
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Construction of multi-enzyme cascade biomimetic carbon sequestration system based on photocatalytic coenzyme NADH regeneration |
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Yu, Senshen Kang, Helong He, Rui Ning, Yuxin Yu, Yingyue Wang, Meng Chen, Biqiang |
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