CdS quantum dots/Ti3+-TiO2 nanobelts heterojunctions as efficient visible-light-driven photocatalysts

被引：34

作者：

Zhao, Tianyu ^{[1
]}

Xing, Zipeng ^{[1
]}

Xiu, Ziyuan ^{[1
]}

Li, Zhenzi ^{[2
]}

Shen, Liyan ^{[1
]}

Cao, Yan ^{[1
]}

Hu, Mengqiao ^{[1
]}

Yang, Shilin ^{[1
]}

Zhou, Wei ^{[1
]}

机构：

[1] Heilongjiang Univ, Key Lab Funct Inorgan Mat Chem, Minist Educ Peoples Republ China, Dept Environm Sci,Sch Chem & Mat Sci, Harbin 150080, Heilongjiang, Peoples R China

[2] Harbin Med Univ, Dept Epidemiol & Biostat, Harbin 150086, Heilongjiang, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2018年 / 103卷

基金：

中国国家自然科学基金;

关键词：

CdS quantum dots; TiO2; nanobelts; Heterojunction; Ti3+ self-doping; Visible light photocatalysis; HYDROGEN-PRODUCTION; BLACK TIO2; MESOPOROUS ARCHITECTURES; H-2; EVOLUTION; HETEROSTRUCTURE; NANOPARTICLES; NANOSHEETS; GRAPHENE; WATER; PERFORMANCE;

D O I：

10.1016/j.materresbull.2018.03.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CdS quantum dots (QDs)/Ti3+-TiO2 nanobelts heterojunctions as 0D/1D architectures are fabricated through hydrothermal-chemical bath deposition combine with in-situ solid-state chemical reduction approach. The CdS QDs of similar to 7 rim are loaded on TiO2 nanobelts with width of 50-300 rim and several micrometers long, and the heterojunctions are formed efficiently. The prepared heterojunctions exhibit excellent photocatalytic performance for complete removal of methylene blue (similar to 99%) and hydrogen production efficiency (similar to 480.6 mu mol h(-1)) under visible light irradiation, which are as high as 2 and 23 times than that of pristine TiO2 nanobelts. The enhancement is attributed to the Ti3+ self-doping and CdS QDs extend the photoresponse to visible light region and the formation of heterojunctions favor the spatial separation of photogenerated charge carriers. Therefore, the high-efficient 0D/1D heterojunction composites have potential applications in the field of environment and energy.

引用

页码：114 / 121

页数：8

共 49 条

[1] Solar Water Splitting by TiO2/CdS/Co-Pi Nanowire Array Photoanode Enhanced with Co-Pi as Hole Transfer Relay and CdS as Light Absorber [J].

Ai, Guanjie ;

Li, Hongxing ;

Liu, Shaopei ;

Mo, Rong ;

Zhong, Jianxin .

ADVANCED FUNCTIONAL MATERIALS, 2015, 25 (35) :5706-5713

[2] An easy-to achieve approach for the fabrication of CdS QDs sensitized TiO2 nanotubes and their enhanced photoelectrochemical performance [J].

Ben Taieb, S. ;

Truong, T. N. Pham ;

Chaguetmi, S. ;

Ben Naceur, J. ;

Bardaoui, A. ;

Gannouni, M. ;

Decorse, P. ;

Mouton, L. ;

Nowak, S. ;

Mammeri, F. ;

Chtourou, R. ;

Ammar, S. .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2017, 332 :337-344

[3] Composite hollow nanostructures composed of carbon-coated Ti3+ self-doped TiO2-reduced graphene oxide as an efficient electrocatalyst for oxygen reduction [J].

Boppella, Ramireddy ;

Lee, Ji-Eun ;

Mota, Filipe Marques ;

Kim, Jin Young ;

Feng, Zhenxing ;

Kim, Dong Ha .

JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (15) :7072-7080

[4] Efficient Visible Light-Driven Splitting of Alcohols into Hydrogen and Corresponding Carbonyl Compounds over a Ni-Modified CdS Photocatalyst [J].

Chai, Zhigang ;

Zeng, Ting-Ting ;

Li, Qi ;

Lu, Liang-Qiu ;

Xiao, Wen-Jing ;

Xu, Dongsheng .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2016, 138 (32) :10128-10131

[5] Enhanced photogenerated carrier separation in CdS quantum dot sensitized ZnFe2O4/ZnIn2S4 nanosheet stereoscopic films for exceptional visible light photocatalytic H2 evolution performance [J].

Chen, Yajie ;

Tian, Guohui ;

Zhou, Wei ;

Xiao, Yuting ;

Wang, Jinge ;

Zhang, Xin ;

Fu, Honggang .

NANOSCALE, 2017, 9 (18) :5912-5921

[6] Enhanced photocatalytic activities of TiO2-reduced graphene oxide nanocomposites controlled by Ti-O-C interfacial chemical bond [J].

Chen, Ying ;

Gao, Hongyan ;

Xiang, Junjie ;

Dong, Xinju ;

Cao, Yan .

MATERIALS RESEARCH BULLETIN, 2018, 99 :29-36

[7] Ferromagnetic Interactions in Highly Stable, Partially Reduced TiO2: The S=2 State in Anatase [J].

Chiesa, Mario ;

Livraghi, Stefano ;

Giamello, Elio ;

Albanese, Elisa ;

Pacchioni, Gianfranco .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2017, 56 (10) :2604-2607

[8] The passivating effect of cadmium in PbS/CdS colloidal quantum dots probed by nm-scale depth profiling [J].

Clark, Pip C. J. ;

Radtke, Hanna ;

Pengpad, Atip ;

Williamson, Andrew I. ;

Spencer, Ben F. ;

Hardman, Samantha J. O. ;

Leontiadou, Marina A. ;

Neo, Darren C. J. ;

Fairclough, Simon M. ;

Watt, Andrew A. R. ;

Pis, Igor ;

Nappini, Silvia ;

Bondino, Federica ;

Magnano, Elena ;

Handrup, Karsten ;

Schulte, Karina ;

Silly, Mathieu G. ;

Sirottig, Fausto ;

Flavell, Wendy R. .

NANOSCALE, 2017, 9 (18) :6056-6067

[9]

Gu J, 2016, NAT MATER, V15, P456, DOI [10.1038/NMAT4511, 10.1038/nmat4511]

[10] Facile strategy for controllable synthesis of stable mesoporous black TiO2 hollow spheres with efficient solar-driven photocatalytic hydrogen evolution [J].

Hu, Weiyao ;

Zhou, Wei ;

Zhang, Kaifu ;

Zhang, Xiangcheng ;

Wang, Lei ;

Jiang, Baojiang ;

Tian, Guohui ;

Zhao, Dongyuan ;

Fu, Honggang .

JOURNAL OF MATERIALS CHEMISTRY A, 2016, 4 (19) :7495-7502

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