光催化
三元运算
纳米棒
材料科学
异质结
光降解
纳米壳
可重用性
催化作用
纤锌矿晶体结构
载流子
化学工程
降级(电信)
纳米技术
煅烧
锌
光电子学
计算机科学
纳米颗粒
化学
工程类
电信
生物化学
冶金
程序设计语言
软件
作者
Xiaoqing Jiang,Linsen Huang,Junhua Li,Liangxing Zhang,Xinyu Guo,Yiqing Li,Xueliang Sun
标识
DOI:10.1016/j.jece.2021.105608
摘要
In this work, a novel three-dimensional (3D) multi-shell CeO2/[email protected] (CZS-X) photocatalyst has been successfully designed and fabricated. The morphology, chemical and optical properties have been characterized in detail and verified its photocatalytic efficiency via the degradation of p-Nitrophenol. It is found that such ternary CZS-1.5 with oxygen vacancies gives rise to a significantly enhanced photocatalytic performance under simulated sunlight (97%, 25 min). Thus, a dual type-II heterojunction mode of charge migration mechanism is proposed, which rationally describes the separation and transmission efficiency of carriers. Moreover, the carrier mobility is also affected by ZnS nanoshell, which not only upgrades the photodegradation activity of ZnO nanorods, but also suppresses the photocorrosion of ZnO during the catalytic reaction, resulting in the acquired reusability of CZS-1.5. This study introduces the new inspiration for catalyst modification, conquering the inherent properties of materials and providing a new perspective for environmental restoration and solar energy utilization.
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