光催化
纳米复合材料
甲基橙
光降解
材料科学
带隙
吸附
降级(电信)
化学工程
晶体结构
Crystal(编程语言)
纳米颗粒
纳米技术
化学
催化作用
物理化学
有机化学
光电子学
工程类
程序设计语言
电信
计算机科学
作者
Sanaz Naghibi,Ali Basravi,Youhong Tang
标识
DOI:10.1002/crat.202100128
摘要
Abstract In this study, a two‐step synthesis of the ZnO‐CuAl 2 O 4 nanocomposite with houseleek‐like grains structures is developed for the first time. The proposed preparation procedure is led to an increase in bandgap energy (E g ) of the synthesized nanocomposite in comparison with the synthesized ZnO nanoparticles. Theoretically, based on a relation between E g and the number of surface atoms, the increase in Eg value has been ascribed to the morphology of the synthesized samples. Experimentally, the photocatalytic performance of the synthesized composites, and pristine ZnO and CuAl 2 O 4 are evaluated by comparing the degradation of methyl orange (MO) solution as a model of azo dye pollutants under UV irradiation. ZnO content and solution pH are selected as variables. Experimental results are showed that acidic pH (≈4) leads to the highest photodegradation performance due to the anionic nature of the MO solution. On the other hand, CuAl 2 O 4 ‐25%ZnO attained the highest degradation efficiency and high adsorption behavior of the composite is the main reason for this achievement.
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