Hydrothermal synthesis of BiOxBry/BiOmIn/GO composites with visible-light photocatalytic activity

Chiing Chang Chen; Shu Hsiang Chang; Janah Shaya; Fu Yu Liu; Yu Yun Lin; Ling Guang Wang; Hwei yan Tsai; Chung Shin Lu

doi:10.1016/j.jtice.2022.104272

Hydrothermal synthesis of BiO_xBr_y/BiO_mI_n/GO composites with visible-light photocatalytic activity

Chiing Chang Chen, Shu Hsiang Chang, Janah Shaya, Fu Yu Liu, Yu Yun Lin, Ling Guang Wang, Hwei yan Tsai, Chung Shin Lu

Chemistry

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Background: Bismuth oxyhalides (BiOX, X = F, Cl, Br, and I) represent a potential family for photocatalysis. However, BiOX materials suffer from the fast recombination of photogenerated electrons and holes. Therefore, it is highly desired to enhance the photogenerated charge separation of BiOX for efficient photocatalysis. Methods: Bismuth oxybromide/bismuth oxyiodide/graphene oxide (BiO_xBr_y/BiO_mI_n/ GO) composites were synthesized by a simple hydrothermal method. The prepared photocatalysts were characterized by XRD, TEM-EDS, DRS, FT-IR, BET, PL, and XPS. Significant findings: The introduction of GO to the composites (BiO_xBr_y/BiO_mI_n/GO) enhanced the visible-light photocatalytic activities in the degradation of crystal violet (CV). The photocatalytic activity of Bi₄O₅Br₂/BiOI/GO showed a maximum rate constant of 1.1619 h⁻¹, 3 times higher than that of Bi₄O₅Br₂/BiOI. Further investigation of the photocatalytic activity of the Bi₄O₅Br₂/BiOI/GO composites was performed on rhodamine-B (RhB). 98% degradation of RhB was achieved upon exposure to visible-light irradiation for 2 h. The Bi₄O₅Br₂/BiOI/GO composites exhibited durable photocatalytic activity and chemical stability, as shown by recycling experiments and their XRD patterns. ^•OH and ^•O₂⁻ appeared to play a primary role in the CV degradation by BiO_xBr_y/BiO_mI_n/GO photocatalysts according to the performed scavenger experiments. The plausible photocatalytic mechanism for the BiO_xBr_y/BiO_mI_n/GO composites was discussed. The present BiO_xBr_y/BiO_mI_n/GO study demonstrate the prospects of the prepared photocatalysts for water treatment applications.

Original language	British English
Article number	104272
Journal	Journal of the Taiwan Institute of Chemical Engineers
Volume	133
DOIs	https://doi.org/10.1016/j.jtice.2022.104272
State	Published - Apr 2022

Keywords

Bismuth oxybromide
Bismuth oxyiodide
Composites
Crystal violet
Graphene oxide
Photocatalytic
Rhodamine-B

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10.1016/j.jtice.2022.104272

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@article{4731ca8fe179409a91b81c4b4caaf883,

title = "Hydrothermal synthesis of BiOxBry/BiOmIn/GO composites with visible-light photocatalytic activity",

abstract = "Background: Bismuth oxyhalides (BiOX, X = F, Cl, Br, and I) represent a potential family for photocatalysis. However, BiOX materials suffer from the fast recombination of photogenerated electrons and holes. Therefore, it is highly desired to enhance the photogenerated charge separation of BiOX for efficient photocatalysis. Methods: Bismuth oxybromide/bismuth oxyiodide/graphene oxide (BiOxBry/BiOmIn/ GO) composites were synthesized by a simple hydrothermal method. The prepared photocatalysts were characterized by XRD, TEM-EDS, DRS, FT-IR, BET, PL, and XPS. Significant findings: The introduction of GO to the composites (BiOxBry/BiOmIn/GO) enhanced the visible-light photocatalytic activities in the degradation of crystal violet (CV). The photocatalytic activity of Bi4O5Br2/BiOI/GO showed a maximum rate constant of 1.1619 h−1, 3 times higher than that of Bi4O5Br2/BiOI. Further investigation of the photocatalytic activity of the Bi4O5Br2/BiOI/GO composites was performed on rhodamine-B (RhB). 98% degradation of RhB was achieved upon exposure to visible-light irradiation for 2 h. The Bi4O5Br2/BiOI/GO composites exhibited durable photocatalytic activity and chemical stability, as shown by recycling experiments and their XRD patterns. •OH and •O2− appeared to play a primary role in the CV degradation by BiOxBry/BiOmIn/GO photocatalysts according to the performed scavenger experiments. The plausible photocatalytic mechanism for the BiOxBry/BiOmIn/GO composites was discussed. The present BiOxBry/BiOmIn/GO study demonstrate the prospects of the prepared photocatalysts for water treatment applications.",

keywords = "Bismuth oxybromide, Bismuth oxyiodide, Composites, Crystal violet, Graphene oxide, Photocatalytic, Rhodamine-B",

author = "Chen, {Chiing Chang} and Chang, {Shu Hsiang} and Janah Shaya and Liu, {Fu Yu} and Lin, {Yu Yun} and Wang, {Ling Guang} and Tsai, {Hwei yan} and Lu, {Chung Shin}",

note = "Funding Information: The researchers would like to express their gratitude to Peking University, Taichung University of Education, and Precious Instrument Center for providing the instruments. This research was supported by the Ministry of Science and Technology of Taiwan ( MOST-109-2113-M-142-001 ). We thank the Instrumentation Center of Chung Hsing University, Taiwan ( FA05B101X ), Instrumentation Center at National Tsing Hua University, Taiwan ( FA04B101X ), and Precious Instrument Utilization Center at National Central University, Taiwan ( FA07B101X ) for utilization of precious instrument. Funding Information: The researchers would like to express their gratitude to Peking University, Taichung University of Education, and Precious Instrument Center for providing the instruments. This research was supported by the Ministry of Science and Technology of Taiwan (MOST-109-2113-M-142-001). We thank the Instrumentation Center of Chung Hsing University, Taiwan (FA05B101X), Instrumentation Center at National Tsing Hua University, Taiwan (FA04B101X), and Precious Instrument Utilization Center at National Central University, Taiwan (FA07B101X) for utilization of precious instrument. Publisher Copyright: {\textcopyright} 2022 Taiwan Institute of Chemical Engineers",

year = "2022",

month = apr,

doi = "10.1016/j.jtice.2022.104272",

language = "British English",

volume = "133",

journal = "Journal of the Taiwan Institute of Chemical Engineers",

issn = "1876-1070",

publisher = "Taiwan Institute of Chemical Engineers",

}

TY - JOUR

T1 - Hydrothermal synthesis of BiOxBry/BiOmIn/GO composites with visible-light photocatalytic activity

AU - Chen, Chiing Chang

AU - Chang, Shu Hsiang

AU - Shaya, Janah

AU - Liu, Fu Yu

AU - Lin, Yu Yun

AU - Wang, Ling Guang

AU - Tsai, Hwei yan

AU - Lu, Chung Shin

N1 - Funding Information: The researchers would like to express their gratitude to Peking University, Taichung University of Education, and Precious Instrument Center for providing the instruments. This research was supported by the Ministry of Science and Technology of Taiwan ( MOST-109-2113-M-142-001 ). We thank the Instrumentation Center of Chung Hsing University, Taiwan ( FA05B101X ), Instrumentation Center at National Tsing Hua University, Taiwan ( FA04B101X ), and Precious Instrument Utilization Center at National Central University, Taiwan ( FA07B101X ) for utilization of precious instrument. Funding Information: The researchers would like to express their gratitude to Peking University, Taichung University of Education, and Precious Instrument Center for providing the instruments. This research was supported by the Ministry of Science and Technology of Taiwan (MOST-109-2113-M-142-001). We thank the Instrumentation Center of Chung Hsing University, Taiwan (FA05B101X), Instrumentation Center at National Tsing Hua University, Taiwan (FA04B101X), and Precious Instrument Utilization Center at National Central University, Taiwan (FA07B101X) for utilization of precious instrument. Publisher Copyright: © 2022 Taiwan Institute of Chemical Engineers

PY - 2022/4

Y1 - 2022/4

N2 - Background: Bismuth oxyhalides (BiOX, X = F, Cl, Br, and I) represent a potential family for photocatalysis. However, BiOX materials suffer from the fast recombination of photogenerated electrons and holes. Therefore, it is highly desired to enhance the photogenerated charge separation of BiOX for efficient photocatalysis. Methods: Bismuth oxybromide/bismuth oxyiodide/graphene oxide (BiOxBry/BiOmIn/ GO) composites were synthesized by a simple hydrothermal method. The prepared photocatalysts were characterized by XRD, TEM-EDS, DRS, FT-IR, BET, PL, and XPS. Significant findings: The introduction of GO to the composites (BiOxBry/BiOmIn/GO) enhanced the visible-light photocatalytic activities in the degradation of crystal violet (CV). The photocatalytic activity of Bi4O5Br2/BiOI/GO showed a maximum rate constant of 1.1619 h−1, 3 times higher than that of Bi4O5Br2/BiOI. Further investigation of the photocatalytic activity of the Bi4O5Br2/BiOI/GO composites was performed on rhodamine-B (RhB). 98% degradation of RhB was achieved upon exposure to visible-light irradiation for 2 h. The Bi4O5Br2/BiOI/GO composites exhibited durable photocatalytic activity and chemical stability, as shown by recycling experiments and their XRD patterns. •OH and •O2− appeared to play a primary role in the CV degradation by BiOxBry/BiOmIn/GO photocatalysts according to the performed scavenger experiments. The plausible photocatalytic mechanism for the BiOxBry/BiOmIn/GO composites was discussed. The present BiOxBry/BiOmIn/GO study demonstrate the prospects of the prepared photocatalysts for water treatment applications.

AB - Background: Bismuth oxyhalides (BiOX, X = F, Cl, Br, and I) represent a potential family for photocatalysis. However, BiOX materials suffer from the fast recombination of photogenerated electrons and holes. Therefore, it is highly desired to enhance the photogenerated charge separation of BiOX for efficient photocatalysis. Methods: Bismuth oxybromide/bismuth oxyiodide/graphene oxide (BiOxBry/BiOmIn/ GO) composites were synthesized by a simple hydrothermal method. The prepared photocatalysts were characterized by XRD, TEM-EDS, DRS, FT-IR, BET, PL, and XPS. Significant findings: The introduction of GO to the composites (BiOxBry/BiOmIn/GO) enhanced the visible-light photocatalytic activities in the degradation of crystal violet (CV). The photocatalytic activity of Bi4O5Br2/BiOI/GO showed a maximum rate constant of 1.1619 h−1, 3 times higher than that of Bi4O5Br2/BiOI. Further investigation of the photocatalytic activity of the Bi4O5Br2/BiOI/GO composites was performed on rhodamine-B (RhB). 98% degradation of RhB was achieved upon exposure to visible-light irradiation for 2 h. The Bi4O5Br2/BiOI/GO composites exhibited durable photocatalytic activity and chemical stability, as shown by recycling experiments and their XRD patterns. •OH and •O2− appeared to play a primary role in the CV degradation by BiOxBry/BiOmIn/GO photocatalysts according to the performed scavenger experiments. The plausible photocatalytic mechanism for the BiOxBry/BiOmIn/GO composites was discussed. The present BiOxBry/BiOmIn/GO study demonstrate the prospects of the prepared photocatalysts for water treatment applications.

KW - Bismuth oxybromide

KW - Bismuth oxyiodide

KW - Composites

KW - Crystal violet

KW - Graphene oxide

KW - Photocatalytic

KW - Rhodamine-B

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U2 - 10.1016/j.jtice.2022.104272

DO - 10.1016/j.jtice.2022.104272

M3 - Article

AN - SCOPUS:85125007331

SN - 1876-1070

VL - 133

JO - Journal of the Taiwan Institute of Chemical Engineers

JF - Journal of the Taiwan Institute of Chemical Engineers

M1 - 104272

ER -

Hydrothermal synthesis of BiO_xBr_y/BiO_mI_n/GO composites with visible-light photocatalytic activity

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Keywords

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