尼亚尔
降级(电信)
光催化
肖特基势垒
化学工程
材料科学
异质结
复合数
可见光谱
化学
纳米技术
复合材料
催化作用
金属间化合物
有机化学
光电子学
电子工程
工程类
合金
二极管
作者
Tao Wang,Qiuyue Men,Xiqing Liu,Hongquan Zhan,Yongqing Wang
标识
DOI:10.1016/j.seppur.2022.121215
摘要
0D/2D interface heterostructure of 0D CuInS2 and 2D NiAl-LDH were obtained via strong interfacial contact. Mott-Schottky analysis confirmed both materials were n-type feature. Thus, a staggered n-n heterojunction was formed via the balance of Fermi level. This 0D/2D composite exhibited enchantable activity for photocatalytic degradation 2,4-Dichlorophenol under visible-light illumination, far superior than pure CuInS2 and NiAl-LDH. The improvement of photocatalytic performance mainly attributed to the large BET surface area and interfacial contact, which resulted in more active sites, effective charge separation and transfer. Moreover, the optimal CuInS2/NiAl-LDH composite showed higher photostability for cycle experiments. At the same, the possible photocatalytic reaction process was proposed based on the trapping experiments, ESR technique and band position. This work provided a theory and foundation for designing and preparing of 0D/2D heterostructure system for photocatalytic application.
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