中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
TiO2 spatially confined growth of Sb2(S,Se)3@TiO2 NT heterojunction photoanodes and their photoelectrochemical properties

文献类型:期刊论文

作者Jin, Wei3; Liu, Dekang3; Zhang, Liyuan3; Sun, Qian3; Wang, Yishan2; Liu, Enzhou1; Hu, Xiaoyun3; Miao, Hui3
刊名CATALYSIS SCIENCE & TECHNOLOGY
ISSN号2044-4753;2044-4761
DOI10.1039/d3cy01136d
产权排序2
英文摘要

Titanium dioxide (TiO2), a conventional n-type semiconductor, was widely used in photocatalysis, electrocatalysis and photoelectrocatalysis due to its good UV absorption and stable physical and chemical properties. However, its wide band gap and low oxygen reaction (OER) activity limited its application in photoelectrochemical (PEC) water splitting. In this work, we successfully constructed type-II Sb-2(S,Se)(3)@TiO2 core-shell heterojunctions. Antimony sulfide selenide (Sb-2(S,Se)(3)) was a quasi-one-dimensional light-absorbing material with an adjustable band gap (1.1-1.8 eV), which broadened the TiO2 light absorption range and effectively promoted the photogenerated carrier separation, transportation and utilization. Of particular note, novel Sb-2(S,Se)(3) nanospheres (NSPs) (ca. 69 nm) were in situ grown inside the tubes attributed to the unique space-confinement effect of TiO2 nanotubes (NTs). The IPCE value for Sb-2(S,Se)(3)@TiO2 at 734 nm was 10.808% compared to 0.030% for TiO2. The separation efficiency and injection efficiency increased from 2.48% and 31.62% to 4.90% and 36.48%, respectively. The onset potential was moved negatively by 60 mV, and the maximum photocurrent density of 1.53 mA cm(-2) at 1.23 V vs. RHE was 13.9 times higher than that of TiO2 (0.11 mA cm(-2)). This work provided a new idea for the application of TiO2 in the field of PEC water splitting.

语种英语
WOS记录号WOS:001089770800001
出版者ROYAL SOC CHEMISTRY
源URL[http://ir.opt.ac.cn/handle/181661/96867]  
专题西安光学精密机械研究所_瞬态光学技术国家重点实验室
通讯作者Miao, Hui
作者单位1.Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China
2.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China
3.Northwest Univ, Sch Phys, Xian 710127, Peoples R China
推荐引用方式
GB/T 7714
Jin, Wei,Liu, Dekang,Zhang, Liyuan,et al. TiO2 spatially confined growth of Sb2(S,Se)3@TiO2 NT heterojunction photoanodes and their photoelectrochemical properties[J]. CATALYSIS SCIENCE & TECHNOLOGY.
APA Jin, Wei.,Liu, Dekang.,Zhang, Liyuan.,Sun, Qian.,Wang, Yishan.,...&Miao, Hui.
MLA Jin, Wei,et al."TiO2 spatially confined growth of Sb2(S,Se)3@TiO2 NT heterojunction photoanodes and their photoelectrochemical properties".CATALYSIS SCIENCE & TECHNOLOGY

入库方式: OAI收割

来源:西安光学精密机械研究所

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