Highly efficient hydrogen evolution over Co(OH)(2) nanoparticles modified g-C3N4 co-sensitized by Eosin Y and Rose Bengal under Visible Light Irradiation | |
Department | OSSO国家重点实验室 |
Li Z(李振)1,2; Wu YQ(吴玉琪)1; Lu GX(吕功煊)1; Lv GX(吕功煊) | |
The second department | erc国家工程研究中心 |
2016 | |
Source Publication | Applied Catalysis B: Environmental |
ISSN | 0926-3373 |
Volume | 188Pages:56-64 |
Abstract | In this work, non-noble metal cobalt hydroxide nanoparticles [Co(OH)2 NPs] implanted uniformly on graphitic carbon nitride (g-C3N4) as a co-catalyst for hydrogen evolution reaction (HER) by in-situ chemical deposition method were reported. After co-sensitized by Eosin Y (EY) and Rose Bengal (RB) dyes, this photocatalyst exhibited a comparatively low onset potential (0.26 V) for HER and high photocatalytic HER activity under visible light irradiation. The g-C3N4 not only provided a large area and nanoporous structure for the confined growth of Co(OH)2 NPs, but also greatly facilitated EY and RB (ER) molecules assembling on its surface, which promoted the charge transfer from dye to co-catalyst. The PL spectra and lifetime test showed the strong interaction between Co(OH)2 NPs and g-C3N4 could enhance the transferr rate of the photogenerated electron to reduce the carries recombination. About 431.9 μmol of hydrogen generated over ER co-sensitized Co(OH)2/C3N4 in 3 h. The apparent quantum efficiencies (AQE) of 29.6 and 27.3% were achieved at 520 nm and 550 nm over Co(OH)2/C3N4, respectively. In addition, this co-sensitized photocatalyst showed satisfied stability for HER, no remarkable decay of activity was observed in 900 min reaction. These results imply that Co(OH)2 is a stable and efficient cheaper co-catalyst for photo-HER. |
Keyword | Co(Oh)(2) Nanoparticles G-c3n4 Co-sensitized Highly Efficient Hydrogen Evolution Photocatalyst |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.apcatb.2016.01.057 |
Funding Organization | the NSF of China (grant no. 21173242;21433007) |
Indexed By | SCI |
If | 9.446 |
Language | 英语 |
Funding Project | 环境催化与清洁能源研究组;环境催化与氢能源研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19493 |
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 | Lv GX(吕功煊) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Li Z,Wu YQ,Lu GX,et al. Highly efficient hydrogen evolution over Co(OH)(2) nanoparticles modified g-C3N4 co-sensitized by Eosin Y and Rose Bengal under Visible Light Irradiation[J]. Applied Catalysis B: Environmental,2016,188:56-64. |
APA | Li Z,Wu YQ,Lu GX,&吕功煊.(2016).Highly efficient hydrogen evolution over Co(OH)(2) nanoparticles modified g-C3N4 co-sensitized by Eosin Y and Rose Bengal under Visible Light Irradiation.Applied Catalysis B: Environmental,188,56-64. |
MLA | Li Z,et al."Highly efficient hydrogen evolution over Co(OH)(2) nanoparticles modified g-C3N4 co-sensitized by Eosin Y and Rose Bengal under Visible Light Irradiation".Applied Catalysis B: Environmental 188(2016):56-64. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
ACB-2016-188-56-1-s2(3091KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment