IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
An ultrafine hyperbranched CdS/TiO2 nanolawn photoanode with highly efficient photoelectrochemical performance
Jiang, Xuhong1,2,4; Sun, Mengmeng1,3,4,5; Chen, Zhuoyuan1,3,4,5; Jing, Jiangping1,4,5; Feng, Chang3
2020-03-05
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume816Pages:11
Corresponding AuthorChen, Zhuoyuan(zychen@qdio.ac.cn)
AbstractThe microstructure of semiconductor materials is of vital importance to its photoelectrochemical performance because the well-optimized special architecture offers rapid electron transport pathways for the photogenerated electrons and provides large areas for light harvesting. In the present paper, an ultrafine hyperbranched TiO2 nanolawn (TiO2 UFHBNL) photoanode was prepared through a facile one-step solvothermal method under employing a suitable dosage of H2O and diethylene glycol (DEG). Along with varying the dosages of H2O and DEG in the solvothermal process, both the crystal structure and morphology of the prepared TiO2 nanosubstrate changed gradually. With the increase of the dosage of H2O and DEG from 5 mL: 35 mL-10 mL: 30 mL and further to 20 mL: 20 mL, the crystal phase of the TiO2 nanosubstrate transforms from amorphous state to anatase phase and eventually to anatase-rutile mixed phases. And, the morphology of TiO2 nanosubstrate changes from thick nanotrees to UFHBNL architecture and then to nanoparticles. The TiO2 UFHBNL photoanode with the ultrafine hyperbranched architecture (diameter of 5-10 nm) after the CdS nanoparticles (5 nm) decoration shows an extremely enhanced photoelectrochemical performance. The ultrafine hyperbranched TiO2 substrate also induces the super-refinement of the deposited CdS nanoparticles (5 nm) on the sub-branches. A maximum photocurrent density of 5.6 and 3.8 mA cm(-2) are obtained under AM1.5 light and visible light illumination, respectively. The highly efficient photoelectrochemical performance is attributed to the decreased charge transfer barrier which contributes to fast charge transport and decreased recombination efficiency of the carriers. This strategy is beneficial for designing the high-performance photoanodes with the ultrafine hyperbranched architecture. (C) 2019 Elsevier B.V. All rights reserved.
KeywordElectrode materials Thin films Chemical synthesis Phase transitions Photoconductivity and photovoltaics Heterojunctions
DOI10.1016/j.jallcom.2019.152533
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41676069] ; National Natural Science Foundation of China[41576114] ; Key Research and Development Program of Shandong Province[2019GHY112085] ; Key Research and Development Program of Shandong Province[2019GHY112066] ; State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China[614290101011703] ; Qingdao Applied Basic Research Plan Program (Applied Basic Research)[19-6-2-79-cg] ; Qingdao Applied Basic Research Plan Program (Applied Basic Research)[14-2-4-4-jch] ; Qingdao Innovative Leading Talent Foundation[15-10-3-15-(39)-zch]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000503725300012
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/164137
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorChen, Zhuoyuan
Affiliation1.Chinese Acad Sci, Key Lab Marine Environm Corros & Biofouling, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China
2.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100049, Peoples R China
3.Luoyang Ship Mat Res Inst, State Key Lab Marine Corros & Protect, Wenhai Rd, Qingdao 266237, Shandong, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China
5.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Shandong, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Jiang, Xuhong,Sun, Mengmeng,Chen, Zhuoyuan,et al. An ultrafine hyperbranched CdS/TiO2 nanolawn photoanode with highly efficient photoelectrochemical performance[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,816:11.
APA Jiang, Xuhong,Sun, Mengmeng,Chen, Zhuoyuan,Jing, Jiangping,&Feng, Chang.(2020).An ultrafine hyperbranched CdS/TiO2 nanolawn photoanode with highly efficient photoelectrochemical performance.JOURNAL OF ALLOYS AND COMPOUNDS,816,11.
MLA Jiang, Xuhong,et al."An ultrafine hyperbranched CdS/TiO2 nanolawn photoanode with highly efficient photoelectrochemical performance".JOURNAL OF ALLOYS AND COMPOUNDS 816(2020):11.
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