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Synergetic Photocatalytic Pure Water Splitting and Self-Supplied Oxygen Activation by 2-D WO3/TiO2 Heterostructures
An, Xiaoqiang; Shang, Ziming; Bai, Yaohui; Liu, Huijuan; Qu, Jiuhui
2019-12-16
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume7Issue:24Pages:19902-19909
AbstractOxygen generation from the endogenous reaction and accompanying activation is of vital importance in ubiquitous environmental and biological catalysis. In this paper, we demonstrated the construction of sheet-on-sheet heterostructures for photocatalytic pure water splitting, which could simultaneously supply oxygen for molecular oxygen activation. Benefitted from the efficient charge separation between interconnected TiO2 networks and faceted WO3 nanoplates, our 2-D heterostructured photo catalysts exhibited 30- and 6-fold increased activity for pure water splitting than pristine WO3 and TiO2, respectively. Under visible light irradiation, the oxygen generation rate of 178 mu mol g(-1) h(-1) was even comparable to the scavenger-facilitated oxygen evolution reactions reported in the literatures. The type II band alignment was favorable for the selective reduction of oxygen molecules, generating more reactive oxygen species for organic pollutant degradation. These findings represent a promising way of self-supplying oxygen from pure water splitting for environmental and biological application.
Department中国科学院饮用水科学与技术重点实验室
Keywordwater splitting photocatalysis oxygen activation 2-D heterostructures reactive oxygen species
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43533
Collection中国科学院饮用水科学与技术重点实验室
Affiliation1.Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Ctr Water & Ecol, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, 18 Shuangqing Rd, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
An, Xiaoqiang,Shang, Ziming,Bai, Yaohui,et al. Synergetic Photocatalytic Pure Water Splitting and Self-Supplied Oxygen Activation by 2-D WO3/TiO2 Heterostructures[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(24):19902-19909.
APA An, Xiaoqiang,Shang, Ziming,Bai, Yaohui,Liu, Huijuan,&Qu, Jiuhui.(2019).Synergetic Photocatalytic Pure Water Splitting and Self-Supplied Oxygen Activation by 2-D WO3/TiO2 Heterostructures.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(24),19902-19909.
MLA An, Xiaoqiang,et al."Synergetic Photocatalytic Pure Water Splitting and Self-Supplied Oxygen Activation by 2-D WO3/TiO2 Heterostructures".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.24(2019):19902-19909.
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