Enhanced photocatalytic performance of bismuth vanadate assisted by polyoxometalates and phthalocyanine. (14th November 2018)

• Record Type: Journal Article
• Authors: Song, Chunli; Jin, Zhanbin; Li, Fengyan; Zhen, Miaomiao; Xi, Lu; Xu, Lin
• Is Part Of: New journal of chemistry. Volume 42:Number 24(2018)
• Page Start: 19678
• Page End: 19684
• Publication Date: 2018-11-14
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c8nj04378g
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : H3 PW12 O40 (PW12 ) and binuclear phthalocyanine (bi-CoPc) modified nanofilms PW12 –BiVO4 –bi-CoPc were prepared. Under illumination of visible light, PW12 –BVO–bi-CoPc nanofilm exhibits a 3-fold enhancement in photocatalytic degradation of NO2 . Abstract : In this study, H3 PW12 O40 (PW12 ) and binuclear phthalocyanine (bi-CoPc)-modified nanofilms PW12 –BiVO4 –bi-CoPc were prepared by a modified metal–organic decomposition method. The photocatalytic performances of BiVO4 and PW12 –BiVO4 –bi-CoPc have been investigated by photocatalytic degradation of nitrogen dioxide under visible light irradiation. The PW12 could act as an electron acceptor and transfer electrons, while the bi-CoPc functioned as a hole-transporting material to enhance the photocatalytic activity of bismuth vanadate. Under illumination with visible light, PW12 –BVO–bi-CoPc nanofilms exhibit a 3-fold enhancement in photocatalytic degradation of NO2 . Transient photocurrent experiments and fluorescence spectroscopy were also performed to confirm the above conclusions.