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8589640 
Journal Article 
Adsorption-enrichment and Localized-photodegradation of Bentonite-supported Red Phosphorus Composites 
Zhu, E; Ma, Y; Ainiwa, M; Su, Z 
2020 
1 
Wuji Cailiao Xuebao
ISSN: 1000-324X 
35 
7 
803-808 
Chinese 
WOS:000545314300008 
The hydrothermally treated red phosphorus (HRP) was dispersed on exfoliated bentonite (EB) supporter to prepare the EB/HRP photocatalyst for improving photocatalytic performance. The as-synthesized samples were characterized by different methods. Rhodamine B was selected as the model pollutant to evaluate the photodegradation property of EB/HRP. Results showed that the photodegradation efficiency of the EB/HRP photocatalyst composite increased with increased EB mass fraction, and decreased after reaching the highest value. When the mass fraction of EB was 9%, the EB9/HRP photocatalyst composite exhibited the maximum adsorption performance and photodegradation activity. Its degradation rate constant k was 0.0641 min-1, which was two times that of HRP. In addition, after five cycles of photodegradation experiments, EB9/HRP still had high photocatalytic activity (96.8%). Therefore, the EB9/HRP catalyst composite had good photocatalytic activity and stability, which can be an efficient and stable photocatalyst for the degradation of pollutants. © 2020, Science Press. All right reserved. 
Adsorption enrichment-localized photodegradation; Bentonite; Photocatalyst; Red phosphorus