Publication

Selective construction of junctions on different facets of BiVO4 for enhancing photo-activity

조회수 : 261 등록일 : 2016.07.14 00:00

저자 : Wang, P (Wang, Peng), Kang, YS (Kang, Young Soo)
출처 : NEW JOURNAL OF CHEMISTRY
출판일 : 2016.07.01
 
 
Selective construction of junctions on different facets of BiVO4 for enhancing photo-activity
 
 
Wang, P (Wang, Peng)[ 1,2,3 ] ; Zheng, JY (Zheng, Jin You)[ 1,2 ] ; Zhang, D (Zhang, Dun)[ 3 ] ; Kang, YS (Kang, Young Soo)[ 1,2 ]
 
 
[ 1 ] Sogang Univ, Korea Ctr Artificial Photosynth, Seoul 121742, South Korea
[ 2 ] Sogang Univ, Dept Chem, Seoul 121742, South Korea
[ 3 ] Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Naihai Rd, Qingdao 266071, Peoples R China
 
 
 
A novel ternary Ag/BiVO4/Co3O4 hybrid photocatalyst was designed by constructing a metal–semiconductor junction and a p–n junction on electron-rich {010} facets and hole-rich {110} facets of BiVO4, respectively. The Ag/BiVO4/Co3O4 hybrid photocatalyst exhibits enhanced photocatalytic activity for rhodamine B degradation, which is over 8 times that of bare BiVO4 under simulated solar light. It was proven that the combination of a metal–semiconductor junction and a p–n junction further promotes the charge transferring across the interface, and results in an additional effect of two single junctions for improving photo-activity. This research provides a deep insight about the co-working mechanism between the two heterojunctions, and it will propose a new concept for designing a highly efficient photo-catalyst system.
 
 
 
 
 
 
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