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author:

Wang, Peng (Wang, Peng.) [1] | Cai, Wanqian (Cai, Wanqian.) [2] | Yu, Fangyuan (Yu, Fangyuan.) [3] | Zhou, Ping (Zhou, Ping.) [4] | Lin, Mei (Lin, Mei.) [5] | Lin, Cong (Lin, Cong.) [6] | Lin, Tengfei (Lin, Tengfei.) [7] | Gao, Min (Gao, Min.) [8] | Zhao, Chunlin (Zhao, Chunlin.) [9] | Li, Xiangqi (Li, Xiangqi.) [10] | Wu, Xiao (Wu, Xiao.) [11]

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EI

Abstract:

The decaying photocatalytic rate caused by carrier recombination is a thorny problem that has not been properly solved. Improvement of photocatalysis can be achieved through structural innovation, diversification of catalytic modes, or a combination of both. Herein, effective separation of photo-generated carriers in Bi0·5Na0·5TiO3/ZnO composites was achieved by heterojunction construction for energy band regulation and synchronously mechanical energy harvesting from piezoelectric effect. The formation of heterojunctions between Bi0·5Na0·5TiO3 and ZnO was confirmed by electron microscopy and analysis of X-ray photoelectron spectroscopy spectra. The degradation performance of Rhodamine B, a representative industrial dye contaminant, was optimized through the formation of Bi0·5Na0·5TiO3/ZnO heterojunctions and ultrasonic vibration harvesting. Their band structures were described in detail and electrochemical tests were performed to substantiate a novel Z-scheme heterostructure that can explain the carrier separation and transfer processes in catalysis. The piezoelectric polarization field generated by the piezoelectric effect of both Bi0·5Na0·5TiO3 and ZnO coordinates perfectly with the photocatalysis, enabling the piezo-photocatalysis. Our research opens a promising avenue in alleviating charge carrier complexation through heterojunction construction and mechanical strain for future pollutants degradation via catalysis. © 2023 Elsevier Ltd

Keyword:

Bismuth compounds Heterojunctions II-VI semiconductors Photocatalytic activity Piezoelectricity Sodium compounds X ray photoelectron spectroscopy Zinc oxide

Community:

  • [ 1 ] [Wang, Peng]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 2 ] [Cai, Wanqian]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 3 ] [Yu, Fangyuan]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 4 ] [Zhou, Ping]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 5 ] [Lin, Mei]College of Environment Science and Engineering, Fujian Normal University, Fujian Province, Fuzhou; 350007, China
  • [ 6 ] [Lin, Cong]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 7 ] [Lin, Tengfei]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 8 ] [Gao, Min]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 9 ] [Zhao, Chunlin]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 10 ] [Li, Xiangqi]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 11 ] [Wu, Xiao]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China

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Source :

Chemosphere

ISSN: 0045-6535

Year: 2023

Volume: 338

8 . 1

JCR@2023

8 . 1 0 0

JCR@2023

ESI HC Threshold:33

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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