光降解
光催化
材料科学
光电流
铕
罗丹明B
化学工程
复合数
纳米技术
催化作用
可见光谱
多孔性
光化学
化学
发光
光电子学
复合材料
有机化学
工程类
作者
Yue Wang,Binbin Chen,Yating Gao,Lei Jiang,Jian Lv,Shuai Chang,Ruo‐Can Qian,Dawei Li
标识
DOI:10.1016/j.jcis.2021.08.057
摘要
Carbon dots-based porous europium micro-networks (CDs@P-Eu-MNs) are prepared by a facile in-situ growth strategy, which can be used for the highly-efficient photodegradation of rhodamine 6G dyes with almost 95% degradation rate under low power white light (20 W). Excellent photocatalysts are highly desirable for clean energy and pollutant treatment. Carbon dots (CDs)-based composite photocatalysts have been widely studied and utilized in catalytic fields. However, the preparation of the photocatalysts with high catalytic activity still faces a great challenge. Herein, white-light-driven CDs-based porous europium micro-networks (CDs@P-Eu-MNs) composite photocatalysts are prepared by a facile in-situ growth strategy. CDs can affect the morphology and produce a large number of porous structures of CDs@P-Eu-MNs. Importantly, the introduction of CDs not only increases the light absorption, but also promotes the separation of photogenerated charge carriers, and thus improve photocatalytic performance of CDs@P-Eu-MNs composites. CDs@P-Eu-MNs show the highest photocurrent density, which can be used for the highly-efficient photodegradation of rhodamine 6G dyes with almost 95% degradation rate under low power white light (20 W) without any radical generating agents such as H 2 O 2 . Therefore, this new and efficient CDs@P-Eu-MNs photocatalyst will have a great application prospect in water pollution treatment.
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