Significantly improved charge collection and interface injection in 3D BiVO4 based multilayered core-shell nanowire photocatalysts | |
Department | 固体润滑国家重点实验室 |
Zhang, Zemin1; Li, Yunxia1; Jiang, Xiao1; Han, Weihua1,2; Xie, Mingzheng3; Wang, Fangcong1; Xie, Erqing1 | |
2017 | |
Source Publication | Nanoscale |
ISSN | 2040-3364 |
Volume | 9Issue:37Pages:14015-14022 |
Abstract | It is challenging to design a photocatalyst with high-efficiency light absorption, charge separation and even high-efficiency charge transfer. Here, we report a demonstration by utilizing a three-dimensional multilayered core–shell nanowire array (rGO-ITO@BiVO4) as the composite photocatalyst. The core–shell structure can shorten the length of charge transfer and enhance light absorption through multireflection. RGO with defects can work as the charge transfer medium to improve the hole injection from semiconductor to electrolyte. Associated with the above effects, the Co-pi electrocatalyst modified rGO-ITO@BiVO4 photocatalyst yields a photocurrent of about 6.0 mA cm−2 at 0.6 V vs. Ag/AgCl. Transient-state surface photovoltage measurement shows that the rGO layer can prolong the lifetime of the photogenerated holes through π–π interactions, so that more holes can participate in the water oxidation reaction. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c7nr05285e |
Funding Organization | the National Natural Science Foundation of China (Grant No. U1531114;51572118;61404066;21607066);the Fundamental Research Funds for the Central University (China, Grant No. lzujbky-2017-180) |
Indexed By | SCI |
If | 7.367 |
Language | 英语 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22509 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Han, Weihua; Xie, Erqing |
Affiliation | 1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China 3.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Gansu, Peoples R China |
Recommended Citation GB/T 7714 | Zhang, Zemin,Li, Yunxia,Jiang, Xiao,et al. Significantly improved charge collection and interface injection in 3D BiVO4 based multilayered core-shell nanowire photocatalysts[J]. Nanoscale,2017,9(37):14015-14022. |
APA | Zhang, Zemin.,Li, Yunxia.,Jiang, Xiao.,Han, Weihua.,Xie, Mingzheng.,...&Xie, Erqing.(2017).Significantly improved charge collection and interface injection in 3D BiVO4 based multilayered core-shell nanowire photocatalysts.Nanoscale,9(37),14015-14022. |
MLA | Zhang, Zemin,et al."Significantly improved charge collection and interface injection in 3D BiVO4 based multilayered core-shell nanowire photocatalysts".Nanoscale 9.37(2017):14015-14022. |
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