Ni-Mo-S nanoparticles modified graphitic C3N4 for efficient hydrogen evolution | |
Department | OSSO国家重点实验室 |
Yang, Hao1; Jin ZL(靳治良)1; Hu HY(胡红岩)2; Bi YP(毕迎普)2; Lu GX(吕功煊)2; Jin ZL(靳治良) | |
The second department | erc国家工程研究中心 |
2018 | |
Source Publication | Applied Surface Science |
ISSN | 0169-4332 |
Volume | 427Issue:0Pages:587-597 |
Abstract | Noble metal-free Ni-Mo-S nanoparticles modified graphitic C3N4 for efficient hydrogen evolution was successfully synthesized by means of a simple hydrothermal ion exchange process. This composite photocatalyst exhibits about 14 times higher photocatalytic activity of hydrogen production than that of the pure g-C3N4. Fluorescence analysis and electrochemical characterization confirmed that molybdenum sulfide and nickel sulfide as catalyst significantly enhanced the transfer of electrons on g-C3N4 and resulted in the excellent synergistic effect in photocatalytic properties. The promoted charge separation was measured by means of the EIS, photocurrent and transient fluorescence. A series of studies shown that the NixMo1-xS2 nanoparticles modified on the surface of graphitic C3N4 provided the more active sites and improved the efficiency of photo-generated charge separation with several characterizations such as SEM, XRD, XPS, element mapping, UV–vis DRS, Transient photocurrent and BET etc. and the results of which were in good agreement with each other. The composite photocatalyst g-C3N4/NixMo1-xS2 has a greater specific surface area and pore volume compared to pure g-C3N4, which is more favorable for the adsorption of dye molecules, leading to enhance the composite photocatalytic activity consequently. The excited-electron recombination process were greatly modulated with the introduce Ni-Mo-S nanoparticles on the surface of g-C3N4 and the photostability was enhanced as well. In addition, a possible reaction mechanism over eosin Y-sensitized g-C3N4/NixMo1-xS2 photocatalyst under visible light irradiation was proposed. |
Keyword | Graphitic C3n4 G-c3n4/nixmo1-xs2 Photocatalyst Ni-mo-s Nanoparticles Hydrogen Production |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.apsusc.2017.09.021 |
Funding Organization | the Chinese NationalNatural Science Foundation (21433007 ; 21603274 ; 41663011) |
Indexed By | SCI |
If | 4.439 |
Language | 英语 |
Funding Project | 环境催化与氢能研究组 ; 能源与环境纳米催化材料研究组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/23814 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) 精细石油化工中间体国家工程研究中心(ERC) |
Corresponding Author | Jin ZL(靳治良) |
Affiliation | 1.North Minzu Univ, Sch Chem & Chem Engn, Yinchuan 750021, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Gansu, Peoples R China |
Recommended Citation GB/T 7714 | Yang, Hao,Jin ZL,Hu HY,et al. Ni-Mo-S nanoparticles modified graphitic C3N4 for efficient hydrogen evolution[J]. Applied Surface Science,2018,427(0):587-597. |
APA | Yang, Hao,Jin ZL,Hu HY,Bi YP,Lu GX,&Jin ZL.(2018).Ni-Mo-S nanoparticles modified graphitic C3N4 for efficient hydrogen evolution.Applied Surface Science,427(0),587-597. |
MLA | Yang, Hao,et al."Ni-Mo-S nanoparticles modified graphitic C3N4 for efficient hydrogen evolution".Applied Surface Science 427.0(2018):587-597. |
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