Inhibition of the excited-state Rose Bengal (RB) nonradiative process by introducing DMSO for highly efficient photocatalytic hydrogen evolution | |
Department | OSSO国家重点实验室 |
Jiao, Wenjun1,2; Wu YQ(吴玉琪)2; Lu GX(吕功煊)2; Jing, Huanwang1; Lv GX(吕功煊) | |
2016 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 6Issue:35Pages:29538-29544 |
Abstract | An excited-state Rose Bengal (RB) nonradiative process caused by proton-induced quenching makes the capacity of photoelectrons to reduce water weak, which crucially influences the efficiency of hydrogen generation for RB-sensitized photocatalytic systems. In this work, we introduced a low content of dimethyl sulfoxide (DMSO) to form a water–DMSO mixture solvent, which significantly inhibited the nonradiative process. The lifetime of the excited electrons was increased remarkably. The hydrogen generation activity in a water–DMSO mixture solvent was 4.48 times higher than that in the single water solvent. The highest apparent quantum efficiency (AQE) of 44.3% was reached at 550 nm. A small amount of DMSO could break the partial network through hydrogen bonding, increase the RB hydrophobicity, and suppress the excited-state RB nonradiative process. |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1039/c6ra01998f |
Funding Organization | the National Natural Science Foundation of China (Grant No. 21433007);the 973 Program of the Department of Sciences and Technology China (Grant No. 2013CB632404) |
Indexed By | SCI |
If | 3.108 |
Language | 英语 |
Funding Project | 环境催化与清洁能源研究组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19997 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Lv GX(吕功煊) |
Affiliation | 1.Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Jiao, Wenjun,Wu YQ,Lu GX,et al. Inhibition of the excited-state Rose Bengal (RB) nonradiative process by introducing DMSO for highly efficient photocatalytic hydrogen evolution[J]. RSC Advances,2016,6(35):29538-29544. |
APA | Jiao, Wenjun,Wu YQ,Lu GX,Jing, Huanwang,&吕功煊.(2016).Inhibition of the excited-state Rose Bengal (RB) nonradiative process by introducing DMSO for highly efficient photocatalytic hydrogen evolution.RSC Advances,6(35),29538-29544. |
MLA | Jiao, Wenjun,et al."Inhibition of the excited-state Rose Bengal (RB) nonradiative process by introducing DMSO for highly efficient photocatalytic hydrogen evolution".RSC Advances 6.35(2016):29538-29544. |
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