石墨氮化碳
异质结
可见光谱
催化作用
氮化碳
三元运算
纳米复合材料
纳米颗粒
协同催化
光化学
电子转移
化学
光催化
材料科学
降级(电信)
化学工程
光电子学
纳米技术
计算机科学
有机化学
工程类
电信
程序设计语言
作者
Xiaocui Wu,Qingshan Zhao,Jinqiang Zhang,Shuli Li,Hui Liu,Kai Li,Yiwen Li,Demin Kong,Hongqi Sun,Mingbo Wu
标识
DOI:10.1016/j.jcis.2022.12.052
摘要
Photo-Fenton-like catalysis allows development of novel advanced oxidation technology with promising application in wastewater treatment. In this work, carbon dots (CDs) were intercalated between CuO nanoparticles and coralloid flower-like graphitic carbon nitride (g-C3N4) to fabricate a ternary CuO/CDs/g-C3N4 hybrid for synergetic visible-light-driven photo-Fenton-like oxidation. The CuO/CDs/g-C3N4 hybrid showed remarkable degradation efficiency towards recalcitrant organic contamination, excellent tolerance to realistic environmental conditions, exceptional stability and wide universality, declaring great potential for practical applications. •OH and •O2− radicals were demonstrated to be the primary contributors in the photo-Fenton-like system. Mechanism studies reveal dual charge transfer pathways in the Z-scheme CuO/g-C3N4 heterojunction assisted by interfacial electron transmission bridges of CDs, which can simultaneously boost the reduction of Cu2+ to Cu+ in the Fenton-like cycle and accelerate the Z-scheme electron flow from CuO to g-C3N4, leading to synergistic enhancement of the catalytic performance. This work would afford a feasible strategy to develop reinforced solar energy-assisted photo-Fenton-like catalysis systems for water remediation.
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