光催化
纳米花
材料科学
化学工程
离子液体
离子键合
插层(化学)
纳米技术
催化作用
无机化学
离子
纳米结构
化学
有机化学
工程类
作者
Xiaofang Zhang,Han‐Dong Sun,Chuanjiang Pan,Xuanyi Wu,Lin Li,Sangang Lou
标识
DOI:10.1016/j.ceramint.2022.09.363
摘要
A new p-n type CBO/CN/RGO ternary heterojunction photocatalyst combining three-dimensional multi-stage rosette CuBi 2 O 4 and two-dimensional g-C 3 N 4 and RGO flakes was successfully prepared by ionic liquid-assisted hydrothermal method. The successful construction of p-n heterojunctions of CBO/CN/RGO composites was verified by means of UV–vis diffuse reflection, Mott Schottky curves and TEM, and construction the heterojunctions significantly improved that of the transfer and transport speed of photogenerated carriers. The photocatalytic degradation of MO by CBO/CN/RGO-6% reached 91.83% within 150 min, while the kinetic constants of degradation k were 9.7 and 7.9 times greater than those of single-phase CBO and g-C 3 N 4 , respectively. Three cycles of experiments demonstrated that the degradation efficiency of CBO/CN/RGO-6% composites remained above 88% for RhB, which fully proved that the CBO/CN/RGO-6% composites possessed good chemical stability. Based on its excellent photocatalytic performance and good stability, CBO/CN/RGO-6% is expected to be the preferred material for environmental wastewater treatment.
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