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Ultrathin sheetlike BiOAc0.67I0.33 solid solution with optimal energy levels and enhanced visible-light photocatalytic activity
Catalysis Communications ( IF 3.4 ) Pub Date : 2018-10-31 , DOI: 10.1016/j.catcom.2018.10.018
Xuemei Jia , Zhen Yang , Qiaofeng Han , Xin Wang , Junwu Zhu

BiO(CH3COO)xI1-x (denoted as BiOAcxI1-x) solid solutions were easily synthesized by co-precipitation method. The BiOAcxI1-x solid solutions with x = 0.67 possessed the highest visible-light photocatalytic activity for the degradation of multiple pollutants like rhodamine B (RhB), malachite green (MG) and colorless salicylic acid (SA) due to ultrathin sheetlike structures and optimal energy levels, which could effectively impede the recombination of photogenerated electron-hole pairs. High separation efficiency of charge carriers was further confirmed by photoelectrochemical techniques. Various factors to affect photocatalytic performance of the BiOAcxI1-x were investigated in detail and the corresponding photocatalytic mechanism was proposed.



中文翻译:

具有最佳能级和增强的可见光光催化活性的超薄片状BiOAc 0.67 I 0.33固溶体

通过共沉淀法很容易合成BiO(CH 3 COO)x I 1- x(表示为BiOAc x I 1- x)固溶体。BiOAc x I 1- x的固溶体x = 0.67具有超高的可见光催化活性,可降解罗丹明B(RhB),孔雀石绿(MG)和无色水杨酸(SA)等多种污染物,这归因于其超薄的片状结构和最佳的能级,可有效地阻止光生电子-空穴对的重组。通过光电化学技术进一步证实了电荷载流子的高分离效率。详细研究了影响BiOAc x I 1- x光催化性能的各种因素,并提出了相应的光催化机理。

更新日期:2018-10-31
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