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Bashir S, Jamil A, Amin R, Ul-hasan I, Alazmi A, Shahid M. Hydrothermally synthesized Gd-doped BiSbO4 nanoparticles and their graphene-based composite: A novel photocatalytic material. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123217] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Wang Z, Jiang L, Wang K, Li Y, Zhang G. Novel AgI/BiSbO 4 heterojunction for efficient photocatalytic degradation of organic pollutants under visible light: Interfacial electron transfer pathway, DFT calculation and degradation mechanism study. JOURNAL OF HAZARDOUS MATERIALS 2021; 410:124948. [PMID: 33465516 DOI: 10.1016/j.jhazmat.2020.124948] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
Herein, we constructed a novel AgI/BiSbO4 heterojunction via a hydrothermal-precipitation method. The heterojunction structure boosts the generation of hydroxyl and superoxide radicals for efficient degradation of organic pollutants. The photocatalytic activities of the optimal sample for ARG and TC degradation are 10 and 1.6 times higher than those of bare AgI, respectively. Characterizations and theoretical calculations together confirm a strong interfacial charge transfer exists between the interlayer in AgI and BiSbO4 by the formation of Ag‒O bond, making O atoms obtain rich free electrons from Ag atoms of AgI, thus forming an ultrahigh electron transfer tunnel, and ultimately accelerating the separation of photoinduced electrons. More interestingly, low amounts of Ag0 NPs formed during the photocatalytic process, enhancing the visible light absorption because of its SPR (surface plasmon resonance) effect and further promoting the separation of photoinduced carriers. Furthermore, photocatalytic degradation pathways were proposed in detail by analyzing intermediates and a reasonable photocatalytic mechanism was unearthed. This work extends the development of AgI-based heterojunction photocatalysts.
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Affiliation(s)
- Zhuangzhuang Wang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Lisha Jiang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Kai Wang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Yuan Li
- Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Gaoke Zhang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, People's Republic of China; Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, People's Republic of China.
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Li J, Liu W, Ding Y, Liu L, Li F, Li Q. Composition modulation of Cu/Cu2O/CuO nanoparticles supported on carbon for p-nitrophenol reduction. KOREAN J CHEM ENG 2019. [DOI: 10.1007/s11814-019-0275-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Song M, Wu Y, Xu C, Wang X, Su Y. Synergistic effects of multi-active sites in silver modified Bi°-BiVO 4 toward efficient reduction of aromatic nitrobenzene. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:530-540. [PMID: 30710782 DOI: 10.1016/j.jhazmat.2019.01.083] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 06/09/2023]
Abstract
In this work, we report on the preparation of silver nanoparticles modified bismuth/bismuth vanadate (Bi°-BiVO4) catalyst with multi-active sites toward efficient reduction of aromatic nitrobenzene, aiming to tailor the synergistic effects of multi-active sites and specify the underlying catalytic mechanism. The as-prepared catalysts were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray and X-ray photoelectron spectroscopy. It is observed that Ag nanoparticles with diameter of ˜30 nm were anchored evenly on the surface of rod-shaped BiVO4, which offered multi-active sites to contact with the reactants effectively and transfer interfacial electron to 4-nitrophenol (4-NP) rapidly. The activity factor k of Ag/Bi°-BiVO4 for 4-NP reduction is estimated to ˜3933.4 min-1 g-1, which is much higher than that obtained from pristine BiVO4 catalyst, Bi° and noble metal Ag nanoparticles. According to the experimental results, the reaction mechanism and reaction path of 4-NP reduction for BiVO4, Bi and Ag were studied through the density functional theory (DFT) theoretical calculation, which suggested that they exhibit synergistic catalytic effect in the reaction process. This work may provide a feasible foundation for the mechanism research of semiconductor reduction to 4-nitrophenol.
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Affiliation(s)
- Meiting Song
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, PR China
| | - Yuhang Wu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, PR China
| | - Chang Xu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, PR China
| | - Xiaojing Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, PR China
| | - Yiguo Su
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, PR China.
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Atri S, Malik V, Uma S, Nagarajan R. Catalytic applications of mesoporous CaBi2O4 obtained from a single source precursor. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03746-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Switching charge transfer process of carbon nitride and bismuth vanadate by anchoring silver nanoparticle toward cocatalyst free water reduction. J Colloid Interface Sci 2018; 529:375-384. [DOI: 10.1016/j.jcis.2018.06.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/13/2018] [Accepted: 06/14/2018] [Indexed: 11/23/2022]
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Wu Y, Song M, Wang Q, Wang T, Wang X. A highly selective conversion of toxic nitrobenzene to nontoxic aminobenzene by Cu2O/Bi/Bi2MoO6. Dalton Trans 2018; 47:8794-8800. [DOI: 10.1039/c8dt01536h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cu2O/Bi/Bi2MoO6, a ternary catalyst, was expertly prepared using an in situ catalytic reduction reaction.
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Affiliation(s)
- Yuhang Wu
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Meiting Song
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Qijun Wang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Ting Wang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot
- P. R. China
| | - Xiaojing Wang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot
- P. R. China
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Abay AK, Kuo DH, Chen X, Saragih AD. A new V-doped Bi 2(O,S) 3 oxysulfide catalyst for highly efficient catalytic reduction of 2-nitroaniline and organic dyes. CHEMOSPHERE 2017; 189:21-31. [PMID: 28926785 DOI: 10.1016/j.chemosphere.2017.09.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 08/17/2017] [Accepted: 09/05/2017] [Indexed: 06/07/2023]
Abstract
A new type of convenient, and environmentally friendly, Vanadium (V)-doped Bi2(O,S)3 oxysulfide catalyst with different V contents was successfully synthesized via a simple and facile method. The obtained V-doped Bi2(O,S)3 solid solution catalysts were fully characterized by conventional methods. The catalytic performance of the samples was tested by using the reduction of 2-nitroaniline (2-NA) in aqueous solution. The reduction/decolorization of methylene blue (MB) and rhodamine B (RhB) was also chosen to evaluate the universality of catalysts. It was observed that the introduction of V can improve the catalytic performance, and 20%V-Bi2(O,S)3 was found to be the optimal V doping concentration for the reduction of 2-NA, MB, and RhB dyes. For comparative purposes, a related V-free Bi2(O, S)3 oxysulfide material was synthesized and tested as the catalyst. The superior activity of V-doped Bi2(O,S)3 over pure Bi2(O,S)3 was ascribed mainly to an increase in active sites of the material and also due to the presence of synergistic effects. The presence of V5+ as found from XPS analysis may interact with Bi atoms and enhancing the catalytic activity of the sample. In the catalytic reduction of 2-NA, MB and RhB, the obtained V-doped Bi2(O,S)3 oxysulfide catalyst exhibited excellent catalytic activity as compared with other reported catalysts. Furthermore this highly efficient, low-cost and easily reusable V-doped Bi2(O,S)3 catalyst is anticipated to be of great potential in catalysis in the future.
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Affiliation(s)
- Angaw Kelemework Abay
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan
| | - Dong-Hau Kuo
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan.
| | - Xiaoyun Chen
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan
| | - Albert Daniel Saragih
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan
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Egorysheva AV, Berseneva AA, Kuvshinova TB, Gaitko OM. Synthesis of nanocrystalline BiSbO4. RUSS J INORG CHEM+ 2017. [DOI: 10.1134/s0036023617090042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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