光催化
异质结
光降解
罗丹明B
降级(电信)
材料科学
光电流
催化作用
可见光谱
化学工程
光化学
纳米技术
光电子学
化学
计算机科学
有机化学
电信
工程类
作者
Wen Ge,Ling‐Bin Kong,Shaozhi Deng,Lanxian Shen,Peizhi Yang
标识
DOI:10.1016/j.apsusc.2021.151289
摘要
Construction of heterostructure is an efficient approach to improve the photocatalytic performance of catalysts. Herein, the Bi6Fe1.5Co0.5Ti3O18 (BFCTO) nanoplates are successfully loaded on g-C3N4 nanosheets by a facile chemical process for the first time. The photocatalytic activity of all g-C3N4/BFCTO catalysts are measured by the degradation of Rhodamine B (RhB) under visible-light irradiation. The results display that g-C3N4/BFCTO heterojunctions exhibit greatly improved photocatalytic activity compared with corresponding bare g-C3N4 and BFCTO catalysts. Based on the experimental results of photocurrent responses, EIS and ESR, it is clearly demonstrated that the improved activity is attributed to the formation of Z-scheme photocatalyst. The g-C3N4/BFCTO-2 heterojunction showed the optimal photocatalytic activity with the photodegradation efficiency of 84.9% within 20 min. We hope that the work can provide a new insight for exploring Bin+1Fen−3Ti3O3n+3-based Z-scheme heterojunction for pollutant degradation and environment restoration.
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