The enhancement of CdS photocatalytic activity for water splitting via anti-photocorrosion by coating Ni2P shell and removing nascent formed oxygen with artificial gill | |
Department | OSSO国家重点实验室 |
Zhen WL(甄文龙)1,2; Ning XF(宁晓峰)1; Yang BJ(杨宝军)1; Wu YQ(吴玉琪)1; Li Z(李振)1; Lu GX(吕功煊)1; Wu YQ(吴玉琪); Lv GX(吕功煊) | |
2018 | |
Source Publication | Applied Catalysis B: Environmental |
ISSN | 0926-3373 |
Volume | 221Issue:0Pages:243-257 |
Abstract | CdS photocorrosion seriously impeded its application in photocatalysis, especially for water splitting. Here we report new strategies to improve CdS photocorrosion resistance properties significantly by coating Ni2P shell and assembling an artificial gill to remove newly formed O2 from water. Ni2P@CdS catalyst can achieve the over-all water splitting under visible light irradiation without addition of any sacrifice reagent and noble metal loading. Compared with CdS itself, the 10Ni2P@CdS photocatalyst exhibits excellent photocatalytic activity for hydrogen evolution (251.4 μmol of H2 in 180 min) with a high AQE (3.89% at 430 nm). This catalyst also presents high photocurrent, low overpotential (-0.32 V vs SCE), and long fluorescence lifetime (16.27 ns) of excited charges. Cd2+ ions concentration measured by ICP and long term stability results verified the anti-photocorrosion role of Ni2P shell on CdS during water splitting reaction. The activity and stability of 10Ni2P@CdS is even superior to typical 1Pt@CdS catalyst. Our results confirm CdS can be an active catalyst for photocatalytic hydrogen generation from water under visible irradiation if its stability is enhanced by protection of anti-photocorrosion over coating shell and removing the nascent formed oxygen from water. |
Keyword | Inhibition Of Cds Photocorrosion Core-shell Structured Ni2p@cds Visible Light-driven Overall Water Splitting Artificial Gill |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.apcatb.2017.09.024 |
Funding Organization | the NSFC (Grant Nos. 21373245 ; 21433007) |
Indexed By | SCI |
If | 11.698 |
Language | 英语 |
Funding Project | 环境催化与氢能研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22765 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Wu YQ(吴玉琪); Lv GX(吕功煊) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Zhen WL,Ning XF,Yang BJ,et al. The enhancement of CdS photocatalytic activity for water splitting via anti-photocorrosion by coating Ni2P shell and removing nascent formed oxygen with artificial gill[J]. Applied Catalysis B: Environmental,2018,221(0):243-257. |
APA | Zhen WL.,Ning XF.,Yang BJ.,Wu YQ.,Li Z.,...&Lv GX.(2018).The enhancement of CdS photocatalytic activity for water splitting via anti-photocorrosion by coating Ni2P shell and removing nascent formed oxygen with artificial gill.Applied Catalysis B: Environmental,221(0),243-257. |
MLA | Zhen WL,et al."The enhancement of CdS photocatalytic activity for water splitting via anti-photocorrosion by coating Ni2P shell and removing nascent formed oxygen with artificial gill".Applied Catalysis B: Environmental 221.0(2018):243-257. |
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