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In Situ Hydrothermal Construction of Direct Solid-State Nano-Z-Scheme BiVO4/Pyridine-Doped g-C3N4 Photocatalyst with Efficient Visible-Light-Induced Photocatalytic Degradation of Phenol and Dyes
Meng QG(孟庆国)1; Lv HQ(吕海钦)1; Yuan MZ(苑明哲)1; Chen, Zhen2; Chen ZH(陈志鸿)1,3; Wang, Xin2
Department广州中国科学院沈阳自动化研究所分所
Source PublicationACS OMEGA
ISSN2470-1343
2017
Volume2Issue:6Pages:2728-2739
Indexed BySCI
WOS IDWOS:000406385100041
Contribution Rank1
Funding OrganizationNSFC [51602111] ; National Key R&D Program of China [2016YFB0401502] ; "Hundred Talents Program of Chinese Academy Sciences", Guangdong Province [2015A030310196] ; Pearl River S&T Nova Program of Guangzhou [201506040045] ; Guangzhou postdoctoral initial funding
AbstractIn the current study, a mediator-free solid-state BiVO4/pyridine-doped g-C3N4 nano-Z-scheme photocatalytic system (BDCN) with superior visible-light absorption and optimized photocatalytic activity was constructed via an in situ hydrothermal method for the first time. The pyridine-doped g-C3N4 (DCN) nanosheets show strong absorbance in the visible-light region by pyridine doping, and the BiVO4 (similar to 10 nm) nanoparticles are successfully in situ grown on the surface of DCN nanosheets by the controlled hydrothermal method. Under the irradiation of visible light (lambda > 420 nm), the BiVO4/DCN nanocomposite photocatalysts efficiently degrade phenol and methyl orange (MO) and display much higher photocatalytic activity than the individual DCN, bulk BiVO4, or the simple physical mixture of DCN and BiVO4. The greatly improved photocatalytic ability is attributed to the construction of the direct Z-scheme system in the BiVO4/DCN nanocomposite free from any mediator, which leads to enhanced separation of photogenerated electronhole pairs, as confirmed by the photocurrent analysis. The possible Z-scheme mechanism of the BiVO4/DCN nanocomposite photocatalyst was investigated by transient time-resolved luminescence decay spectrum, active species trapping experiments, electron paramagnetic resonance (EPR) technology, and hydrogen evolution test.
Language英语
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Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/24099
Collection广州中国科学院沈阳自动化研究所分所
Corresponding AuthorChen ZH(陈志鸿); Wang, Xin
Affiliation1.Shenyang Institute of Automation, Guangzhou, Chinese Academy of Science, No. 1121, Haibin Road, Nansha District, Guangzhou City, Guangdong Province 511458, P.R. China
2.Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, No.378, Outer Ring Road of Guangzhou University City, Panyu District, Guangzhou City, Guangdong Province 511400, P.R. China
3.Guangzhou Science and Technology Innovation Service Center, No. 25, South Ring Road, Nansha District, Guangzhou City, Guangdong Province 510640, P.R. China
Recommended Citation
GB/T 7714
Meng QG,Lv HQ,Yuan MZ,et al. In Situ Hydrothermal Construction of Direct Solid-State Nano-Z-Scheme BiVO4/Pyridine-Doped g-C3N4 Photocatalyst with Efficient Visible-Light-Induced Photocatalytic Degradation of Phenol and Dyes[J]. ACS OMEGA,2017,2(6):2728-2739.
APA Meng QG,Lv HQ,Yuan MZ,Chen, Zhen,Chen ZH,&Wang, Xin.(2017).In Situ Hydrothermal Construction of Direct Solid-State Nano-Z-Scheme BiVO4/Pyridine-Doped g-C3N4 Photocatalyst with Efficient Visible-Light-Induced Photocatalytic Degradation of Phenol and Dyes.ACS OMEGA,2(6),2728-2739.
MLA Meng QG,et al."In Situ Hydrothermal Construction of Direct Solid-State Nano-Z-Scheme BiVO4/Pyridine-Doped g-C3N4 Photocatalyst with Efficient Visible-Light-Induced Photocatalytic Degradation of Phenol and Dyes".ACS OMEGA 2.6(2017):2728-2739.
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