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Preparation of a Flower-Like BiOCl/K-C3N4p-n Heterojunction and Photodegradation Formaldehyde and Dyes.
- Source :
- Journal of Electronic Materials; Nov2022, Vol. 51 Issue 11, p6228-6237, 10p
- Publication Year :
- 2022
-
Abstract
- The fabrication of p-n heterojunctions is a smart choice to improve photocatalytic performance because such junctions not only effectively promote the separation of photogenerated charges but also improve photocatalytic performance. Herein, a nanoflower-like p-n heterojunction photocatalyst BiOCl/K-C<subscript>3</subscript>N<subscript>4</subscript> (abbreviated as BK-x) was prepared by a simple solution coprecipitation method. Under visible light, the BiOCl/K-C<subscript>3</subscript>N<subscript>4</subscript>p-n heterojunction has enhanced photocatalytic performance in the degradation of methyl orange and gaseous formaldehyde (HCHO). The degradation rate of the optimized complex BK-0.2 is 99% for MO in 30 min and 56% for HCHO in 35 min. The p-type BiOCl can effectively enhance the absorption of visible light, and its p-n heterojunction with K-C<subscript>3</subscript>N<subscript>4</subscript> can significantly enhance the separation efficiency and transfer rate of photogenerated electron–hole pairs. Meanwhile, the multi-dimensional nanoflower structure is not only conducive to light reflection and improves light utilization, but also exposes more catalytically active sites. This p-n heterojunction photocatalyst thus represents a promising material for use in solving environmental pollution problems. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03615235
- Volume :
- 51
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Journal of Electronic Materials
- Publication Type :
- Academic Journal
- Accession number :
- 159382772
- Full Text :
- https://doi.org/10.1007/s11664-022-09870-7