TY - JOUR
T1 - Insight into the influence of morphology of Bi 2 WO 6 for photocatalytic degradation of VOCs under visible light
AU - Zhu, Changjun
AU - Liu, Yangqing
AU - Cao, Haosu
AU - Sun, Jingwen
AU - Xu, Qi
AU - Wang, Liping
N1 - Funding Information:
The authors thank the National Natural Science Foundation of China (No. 21802119 ), National Key R&D Program of China ( 2016YFC0209203 ), and the Joint Open Fund of Jiangsu Collaborative Innovation Center for Ecological Building Material and Environmental Protection Equipments and Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province (No. JH201806 ).
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/5/5
Y1 - 2019/5/5
N2 - Four kinds of Bi 2 WO 6 with different morphology were prepared by facile hydrothermal method with different additives and pH. In the photocatalytic degradation of gaseous toluene under visible light irradiation (λ > 420 nm), the nest-like Bi 2 WO 6 performed the best photodegradation efficiency of 100% in only 20 min, and could be reused for at least eight times without a significant loss of catalytic activity. According to the characterization techniques, including XRD, SEM, TEM, XPS, BET, UV–vis, PL and TPR, the excellent photocatalytic activity of the nest-like Bi 2 WO 6 is ascribed to the small particle size, large photo response interval, narrow band gap, high separation efficiency of electron-hole pairs and low recombination rate of photogenerated electron holes, that result in abundant reaction active sites.
AB - Four kinds of Bi 2 WO 6 with different morphology were prepared by facile hydrothermal method with different additives and pH. In the photocatalytic degradation of gaseous toluene under visible light irradiation (λ > 420 nm), the nest-like Bi 2 WO 6 performed the best photodegradation efficiency of 100% in only 20 min, and could be reused for at least eight times without a significant loss of catalytic activity. According to the characterization techniques, including XRD, SEM, TEM, XPS, BET, UV–vis, PL and TPR, the excellent photocatalytic activity of the nest-like Bi 2 WO 6 is ascribed to the small particle size, large photo response interval, narrow band gap, high separation efficiency of electron-hole pairs and low recombination rate of photogenerated electron holes, that result in abundant reaction active sites.
KW - Bi WO
KW - Morphology
KW - Photocatalytic degradation
KW - Visible light
UR - http://www.scopus.com/inward/record.url?scp=85061645136&partnerID=8YFLogxK
U2 - 10.1016/j.colsurfa.2019.02.029
DO - 10.1016/j.colsurfa.2019.02.029
M3 - Article
AN - SCOPUS:85061645136
SN - 0927-7757
VL - 568
SP - 327
EP - 333
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
ER -