In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi

A novel 3D hierarchical flower-like BiOBr/Bi3O4Br heterostructure photocatalyst was synthesized by in-situ growth of ultrathin BiOBr on the surface of Bi3O4Br nanosheets through a solvothermal process. The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surf...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Zhang, Feihu [verfasserIn] Xiao, Xinyan [verfasserIn] Xiao, Yu [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	Ultrathin BiOBr BiOBr/Bi 3D hierarchical flower-like heterostructure Type II heterojunction

Übergeordnetes Werk:	Enthalten in: Journal of alloys and compounds - Lausanne : Elsevier, 1991, 923
Übergeordnetes Werk:	volume:923

DOI / URN:	10.1016/j.jallcom.2022.166417

Katalog-ID:	ELV008342946

Internformat


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245	1	0	\|a In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi
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520			\|a A novel 3D hierarchical flower-like BiOBr/Bi3O4Br heterostructure photocatalyst was synthesized by in-situ growth of ultrathin BiOBr on the surface of Bi3O4Br nanosheets through a solvothermal process. The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of Bi3O4Br can enhance the light absorption ability of BiOBr/Bi3O4Br photocatalysts. Furthermore, the staggered type II heterostructure energy band alignment formed between BiOBr and Bi3O4Br can promote the separation of photo-excited carriers. The improved performance of carrier migration and light absorption ability was evaluated by SEM, TEM, BET, EIS, and DRS tests. The results of transient photocurrent response and photoluminescence tests confirmed the improvement for separating photoexcited carriers. The optimal 20% BiOBr/Bi3O4Br sample exhibited the greatest photocatalytic degradation rate of 97.1% for RhB and 89.4% for TC, under 90 min of simulated solar light irradiation. Its apparent rate constant k values are 0.03378 and 0.02013 min−1, being 9.44 and 2.18 folds than that of Bi3O4Br, 2.76 and 1.47 folds than that of BiOBr. The free radical scavenging experiment results showed that h+ and •O2 - are the prime active species during the photodegradation process. Hence, a possible photocatalytic mechanism of type II BiOBr/Bi3O4Br heterojunction was proposed.
650		4	\|a Ultrathin BiOBr
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650		4	\|a 3D hierarchical flower-like heterostructure
650		4	\|a Type II heterojunction
700	1		\|a Xiao, Xinyan \|e verfasserin \|4 aut
700	1		\|a Xiao, Yu \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Journal of alloys and compounds \|d Lausanne : Elsevier, 1991 \|g 923 \|h Online-Ressource \|w (DE-627)320504646 \|w (DE-600)2012675-X \|w (DE-576)098615009 \|7 nnns
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936	b	k	\|a 51.54 \|j Nichteisenmetalle und ihre Legierungen
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Indexfelder

author_variant	f z fz x x xx y x yx
matchkey_str	zhangfeihuxiaoxinyanxiaoyu:2022----:niuarctootpi3heaciafo
hierarchy_sort_str	2022
bklnumber	51.54 33.61 35.90
publishDate	2022
allfields	10.1016/j.jallcom.2022.166417 doi (DE-627)ELV008342946 (ELSEVIER)S0925-8388(22)02808-0 DE-627 ger DE-627 rda eng 670 540 DE-600 51.54 bkl 33.61 bkl 35.90 bkl Zhang, Feihu verfasserin aut In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A novel 3D hierarchical flower-like BiOBr/Bi3O4Br heterostructure photocatalyst was synthesized by in-situ growth of ultrathin BiOBr on the surface of Bi3O4Br nanosheets through a solvothermal process. The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of Bi3O4Br can enhance the light absorption ability of BiOBr/Bi3O4Br photocatalysts. Furthermore, the staggered type II heterostructure energy band alignment formed between BiOBr and Bi3O4Br can promote the separation of photo-excited carriers. The improved performance of carrier migration and light absorption ability was evaluated by SEM, TEM, BET, EIS, and DRS tests. The results of transient photocurrent response and photoluminescence tests confirmed the improvement for separating photoexcited carriers. The optimal 20% BiOBr/Bi3O4Br sample exhibited the greatest photocatalytic degradation rate of 97.1% for RhB and 89.4% for TC, under 90 min of simulated solar light irradiation. Its apparent rate constant k values are 0.03378 and 0.02013 min−1, being 9.44 and 2.18 folds than that of Bi3O4Br, 2.76 and 1.47 folds than that of BiOBr. The free radical scavenging experiment results showed that h+ and •O2 - are the prime active species during the photodegradation process. Hence, a possible photocatalytic mechanism of type II BiOBr/Bi3O4Br heterojunction was proposed. Ultrathin BiOBr BiOBr/Bi 3D hierarchical flower-like heterostructure Type II heterojunction Xiao, Xinyan verfasserin aut Xiao, Yu verfasserin aut Enthalten in Journal of alloys and compounds Lausanne : Elsevier, 1991 923 Online-Ressource (DE-627)320504646 (DE-600)2012675-X (DE-576)098615009 nnns volume:923 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.54 Nichteisenmetalle und ihre Legierungen 33.61 Festkörperphysik 35.90 Festkörperchemie AR 923
spelling	10.1016/j.jallcom.2022.166417 doi (DE-627)ELV008342946 (ELSEVIER)S0925-8388(22)02808-0 DE-627 ger DE-627 rda eng 670 540 DE-600 51.54 bkl 33.61 bkl 35.90 bkl Zhang, Feihu verfasserin aut In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A novel 3D hierarchical flower-like BiOBr/Bi3O4Br heterostructure photocatalyst was synthesized by in-situ growth of ultrathin BiOBr on the surface of Bi3O4Br nanosheets through a solvothermal process. The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of Bi3O4Br can enhance the light absorption ability of BiOBr/Bi3O4Br photocatalysts. Furthermore, the staggered type II heterostructure energy band alignment formed between BiOBr and Bi3O4Br can promote the separation of photo-excited carriers. The improved performance of carrier migration and light absorption ability was evaluated by SEM, TEM, BET, EIS, and DRS tests. The results of transient photocurrent response and photoluminescence tests confirmed the improvement for separating photoexcited carriers. The optimal 20% BiOBr/Bi3O4Br sample exhibited the greatest photocatalytic degradation rate of 97.1% for RhB and 89.4% for TC, under 90 min of simulated solar light irradiation. Its apparent rate constant k values are 0.03378 and 0.02013 min−1, being 9.44 and 2.18 folds than that of Bi3O4Br, 2.76 and 1.47 folds than that of BiOBr. The free radical scavenging experiment results showed that h+ and •O2 - are the prime active species during the photodegradation process. Hence, a possible photocatalytic mechanism of type II BiOBr/Bi3O4Br heterojunction was proposed. Ultrathin BiOBr BiOBr/Bi 3D hierarchical flower-like heterostructure Type II heterojunction Xiao, Xinyan verfasserin aut Xiao, Yu verfasserin aut Enthalten in Journal of alloys and compounds Lausanne : Elsevier, 1991 923 Online-Ressource (DE-627)320504646 (DE-600)2012675-X (DE-576)098615009 nnns volume:923 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.54 Nichteisenmetalle und ihre Legierungen 33.61 Festkörperphysik 35.90 Festkörperchemie AR 923
allfields_unstemmed	10.1016/j.jallcom.2022.166417 doi (DE-627)ELV008342946 (ELSEVIER)S0925-8388(22)02808-0 DE-627 ger DE-627 rda eng 670 540 DE-600 51.54 bkl 33.61 bkl 35.90 bkl Zhang, Feihu verfasserin aut In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A novel 3D hierarchical flower-like BiOBr/Bi3O4Br heterostructure photocatalyst was synthesized by in-situ growth of ultrathin BiOBr on the surface of Bi3O4Br nanosheets through a solvothermal process. The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of Bi3O4Br can enhance the light absorption ability of BiOBr/Bi3O4Br photocatalysts. Furthermore, the staggered type II heterostructure energy band alignment formed between BiOBr and Bi3O4Br can promote the separation of photo-excited carriers. The improved performance of carrier migration and light absorption ability was evaluated by SEM, TEM, BET, EIS, and DRS tests. The results of transient photocurrent response and photoluminescence tests confirmed the improvement for separating photoexcited carriers. The optimal 20% BiOBr/Bi3O4Br sample exhibited the greatest photocatalytic degradation rate of 97.1% for RhB and 89.4% for TC, under 90 min of simulated solar light irradiation. Its apparent rate constant k values are 0.03378 and 0.02013 min−1, being 9.44 and 2.18 folds than that of Bi3O4Br, 2.76 and 1.47 folds than that of BiOBr. The free radical scavenging experiment results showed that h+ and •O2 - are the prime active species during the photodegradation process. Hence, a possible photocatalytic mechanism of type II BiOBr/Bi3O4Br heterojunction was proposed. Ultrathin BiOBr BiOBr/Bi 3D hierarchical flower-like heterostructure Type II heterojunction Xiao, Xinyan verfasserin aut Xiao, Yu verfasserin aut Enthalten in Journal of alloys and compounds Lausanne : Elsevier, 1991 923 Online-Ressource (DE-627)320504646 (DE-600)2012675-X (DE-576)098615009 nnns volume:923 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.54 Nichteisenmetalle und ihre Legierungen 33.61 Festkörperphysik 35.90 Festkörperchemie AR 923
allfieldsGer	10.1016/j.jallcom.2022.166417 doi (DE-627)ELV008342946 (ELSEVIER)S0925-8388(22)02808-0 DE-627 ger DE-627 rda eng 670 540 DE-600 51.54 bkl 33.61 bkl 35.90 bkl Zhang, Feihu verfasserin aut In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A novel 3D hierarchical flower-like BiOBr/Bi3O4Br heterostructure photocatalyst was synthesized by in-situ growth of ultrathin BiOBr on the surface of Bi3O4Br nanosheets through a solvothermal process. The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of Bi3O4Br can enhance the light absorption ability of BiOBr/Bi3O4Br photocatalysts. Furthermore, the staggered type II heterostructure energy band alignment formed between BiOBr and Bi3O4Br can promote the separation of photo-excited carriers. The improved performance of carrier migration and light absorption ability was evaluated by SEM, TEM, BET, EIS, and DRS tests. The results of transient photocurrent response and photoluminescence tests confirmed the improvement for separating photoexcited carriers. The optimal 20% BiOBr/Bi3O4Br sample exhibited the greatest photocatalytic degradation rate of 97.1% for RhB and 89.4% for TC, under 90 min of simulated solar light irradiation. Its apparent rate constant k values are 0.03378 and 0.02013 min−1, being 9.44 and 2.18 folds than that of Bi3O4Br, 2.76 and 1.47 folds than that of BiOBr. The free radical scavenging experiment results showed that h+ and •O2 - are the prime active species during the photodegradation process. Hence, a possible photocatalytic mechanism of type II BiOBr/Bi3O4Br heterojunction was proposed. Ultrathin BiOBr BiOBr/Bi 3D hierarchical flower-like heterostructure Type II heterojunction Xiao, Xinyan verfasserin aut Xiao, Yu verfasserin aut Enthalten in Journal of alloys and compounds Lausanne : Elsevier, 1991 923 Online-Ressource (DE-627)320504646 (DE-600)2012675-X (DE-576)098615009 nnns volume:923 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.54 Nichteisenmetalle und ihre Legierungen 33.61 Festkörperphysik 35.90 Festkörperchemie AR 923
allfieldsSound	10.1016/j.jallcom.2022.166417 doi (DE-627)ELV008342946 (ELSEVIER)S0925-8388(22)02808-0 DE-627 ger DE-627 rda eng 670 540 DE-600 51.54 bkl 33.61 bkl 35.90 bkl Zhang, Feihu verfasserin aut In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A novel 3D hierarchical flower-like BiOBr/Bi3O4Br heterostructure photocatalyst was synthesized by in-situ growth of ultrathin BiOBr on the surface of Bi3O4Br nanosheets through a solvothermal process. The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of Bi3O4Br can enhance the light absorption ability of BiOBr/Bi3O4Br photocatalysts. Furthermore, the staggered type II heterostructure energy band alignment formed between BiOBr and Bi3O4Br can promote the separation of photo-excited carriers. The improved performance of carrier migration and light absorption ability was evaluated by SEM, TEM, BET, EIS, and DRS tests. The results of transient photocurrent response and photoluminescence tests confirmed the improvement for separating photoexcited carriers. The optimal 20% BiOBr/Bi3O4Br sample exhibited the greatest photocatalytic degradation rate of 97.1% for RhB and 89.4% for TC, under 90 min of simulated solar light irradiation. Its apparent rate constant k values are 0.03378 and 0.02013 min−1, being 9.44 and 2.18 folds than that of Bi3O4Br, 2.76 and 1.47 folds than that of BiOBr. The free radical scavenging experiment results showed that h+ and •O2 - are the prime active species during the photodegradation process. Hence, a possible photocatalytic mechanism of type II BiOBr/Bi3O4Br heterojunction was proposed. Ultrathin BiOBr BiOBr/Bi 3D hierarchical flower-like heterostructure Type II heterojunction Xiao, Xinyan verfasserin aut Xiao, Yu verfasserin aut Enthalten in Journal of alloys and compounds Lausanne : Elsevier, 1991 923 Online-Ressource (DE-627)320504646 (DE-600)2012675-X (DE-576)098615009 nnns volume:923 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2008 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 51.54 Nichteisenmetalle und ihre Legierungen 33.61 Festkörperphysik 35.90 Festkörperchemie AR 923
language	English
source	Enthalten in Journal of alloys and compounds 923 volume:923
sourceStr	Enthalten in Journal of alloys and compounds 923 volume:923
format_phy_str_mv	Article
bklname	Nichteisenmetalle und ihre Legierungen Festkörperphysik Festkörperchemie
institution	findex.gbv.de
topic_facet	Ultrathin BiOBr BiOBr/Bi 3D hierarchical flower-like heterostructure Type II heterojunction
dewey-raw	670
isfreeaccess_bool	false
container_title	Journal of alloys and compounds
authorswithroles_txt_mv	Zhang, Feihu @@aut@@ Xiao, Xinyan @@aut@@ Xiao, Yu @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	320504646
dewey-sort	3670
id	ELV008342946
language_de	englisch
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The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of Bi3O4Br can enhance the light absorption ability of BiOBr/Bi3O4Br photocatalysts. Furthermore, the staggered type II heterostructure energy band alignment formed between BiOBr and Bi3O4Br can promote the separation of photo-excited carriers. The improved performance of carrier migration and light absorption ability was evaluated by SEM, TEM, BET, EIS, and DRS tests. The results of transient photocurrent response and photoluminescence tests confirmed the improvement for separating photoexcited carriers. The optimal 20% BiOBr/Bi3O4Br sample exhibited the greatest photocatalytic degradation rate of 97.1% for RhB and 89.4% for TC, under 90 min of simulated solar light irradiation. 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author	Zhang, Feihu
spellingShingle	Zhang, Feihu ddc 670 bkl 51.54 bkl 33.61 bkl 35.90 misc Ultrathin BiOBr misc BiOBr/Bi misc 3D hierarchical flower-like heterostructure misc Type II heterojunction In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi
authorStr	Zhang, Feihu
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topic_title	670 540 DE-600 51.54 bkl 33.61 bkl 35.90 bkl In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi Ultrathin BiOBr BiOBr/Bi 3D hierarchical flower-like heterostructure Type II heterojunction
topic	ddc 670 bkl 51.54 bkl 33.61 bkl 35.90 misc Ultrathin BiOBr misc BiOBr/Bi misc 3D hierarchical flower-like heterostructure misc Type II heterojunction
topic_unstemmed	ddc 670 bkl 51.54 bkl 33.61 bkl 35.90 misc Ultrathin BiOBr misc BiOBr/Bi misc 3D hierarchical flower-like heterostructure misc Type II heterojunction
topic_browse	ddc 670 bkl 51.54 bkl 33.61 bkl 35.90 misc Ultrathin BiOBr misc BiOBr/Bi misc 3D hierarchical flower-like heterostructure misc Type II heterojunction
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title	In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi
ctrlnum	(DE-627)ELV008342946 (ELSEVIER)S0925-8388(22)02808-0
title_full	In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi
author_sort	Zhang, Feihu
journal	Journal of alloys and compounds
journalStr	Journal of alloys and compounds
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author_browse	Zhang, Feihu Xiao, Xinyan Xiao, Yu
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author-letter	Zhang, Feihu
doi_str_mv	10.1016/j.jallcom.2022.166417
dewey-full	670 540
author2-role	verfasserin
title_sort	in situ fabrication of type ii 3d hierarchical flower-like biobr/bi
title_auth	In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi
abstract	A novel 3D hierarchical flower-like BiOBr/Bi3O4Br heterostructure photocatalyst was synthesized by in-situ growth of ultrathin BiOBr on the surface of Bi3O4Br nanosheets through a solvothermal process. The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of Bi3O4Br can enhance the light absorption ability of BiOBr/Bi3O4Br photocatalysts. Furthermore, the staggered type II heterostructure energy band alignment formed between BiOBr and Bi3O4Br can promote the separation of photo-excited carriers. The improved performance of carrier migration and light absorption ability was evaluated by SEM, TEM, BET, EIS, and DRS tests. The results of transient photocurrent response and photoluminescence tests confirmed the improvement for separating photoexcited carriers. The optimal 20% BiOBr/Bi3O4Br sample exhibited the greatest photocatalytic degradation rate of 97.1% for RhB and 89.4% for TC, under 90 min of simulated solar light irradiation. Its apparent rate constant k values are 0.03378 and 0.02013 min−1, being 9.44 and 2.18 folds than that of Bi3O4Br, 2.76 and 1.47 folds than that of BiOBr. The free radical scavenging experiment results showed that h+ and •O2 - are the prime active species during the photodegradation process. Hence, a possible photocatalytic mechanism of type II BiOBr/Bi3O4Br heterojunction was proposed.
abstractGer	A novel 3D hierarchical flower-like BiOBr/Bi3O4Br heterostructure photocatalyst was synthesized by in-situ growth of ultrathin BiOBr on the surface of Bi3O4Br nanosheets through a solvothermal process. The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of Bi3O4Br can enhance the light absorption ability of BiOBr/Bi3O4Br photocatalysts. Furthermore, the staggered type II heterostructure energy band alignment formed between BiOBr and Bi3O4Br can promote the separation of photo-excited carriers. The improved performance of carrier migration and light absorption ability was evaluated by SEM, TEM, BET, EIS, and DRS tests. The results of transient photocurrent response and photoluminescence tests confirmed the improvement for separating photoexcited carriers. The optimal 20% BiOBr/Bi3O4Br sample exhibited the greatest photocatalytic degradation rate of 97.1% for RhB and 89.4% for TC, under 90 min of simulated solar light irradiation. Its apparent rate constant k values are 0.03378 and 0.02013 min−1, being 9.44 and 2.18 folds than that of Bi3O4Br, 2.76 and 1.47 folds than that of BiOBr. The free radical scavenging experiment results showed that h+ and •O2 - are the prime active species during the photodegradation process. Hence, a possible photocatalytic mechanism of type II BiOBr/Bi3O4Br heterojunction was proposed.
abstract_unstemmed	A novel 3D hierarchical flower-like BiOBr/Bi3O4Br heterostructure photocatalyst was synthesized by in-situ growth of ultrathin BiOBr on the surface of Bi3O4Br nanosheets through a solvothermal process. The 3D hierarchical heterostructure endows BiOBr/Bi3O4Br heterojunction with a large specific surface area and tight interfacial contact, which can provide sufficient channels for carrier migration. The introduction of Bi3O4Br can enhance the light absorption ability of BiOBr/Bi3O4Br photocatalysts. Furthermore, the staggered type II heterostructure energy band alignment formed between BiOBr and Bi3O4Br can promote the separation of photo-excited carriers. The improved performance of carrier migration and light absorption ability was evaluated by SEM, TEM, BET, EIS, and DRS tests. The results of transient photocurrent response and photoluminescence tests confirmed the improvement for separating photoexcited carriers. The optimal 20% BiOBr/Bi3O4Br sample exhibited the greatest photocatalytic degradation rate of 97.1% for RhB and 89.4% for TC, under 90 min of simulated solar light irradiation. Its apparent rate constant k values are 0.03378 and 0.02013 min−1, being 9.44 and 2.18 folds than that of Bi3O4Br, 2.76 and 1.47 folds than that of BiOBr. The free radical scavenging experiment results showed that h+ and •O2 - are the prime active species during the photodegradation process. Hence, a possible photocatalytic mechanism of type II BiOBr/Bi3O4Br heterojunction was proposed.
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title_short	In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi
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author2	Xiao, Xinyan Xiao, Yu
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doi_str	10.1016/j.jallcom.2022.166417
up_date	2024-07-06T19:22:36.335Z
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score	7.399296

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In situ fabrication of type II 3D hierarchical flower-like BiOBr/Bi

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Zugang & Verfügbarkeit

Vorhandene Bände

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