期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 597, 期 -, 页码 206-214出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.04.016
关键词
Photocatalysis; Cu@N-C nanosphere; Core-shell structure; Peroxymonosulfate activation
资金
- National Natural Science Foundation of China [21575115, 22001193]
- Special fund project for the central government to guide local science and technology development
- Program for Chang Jiang Scholars and Innovative Research Team, Ministry of Education, China [IRT-16R61]
- Program of Gansu Provincial Higher Education Research Project [2017D-01]
- Program of Tianjin Science and Technology Major Project and Engineering [19ZXYXSY00090]
This study successfully prepared Cu@N-C core-shell nanospheres with high catalytic activity, which exhibited excellent activity and durability due to the protective carbon shell preventing the leaching of metal ions and deactivation of the catalyst. This work highlights the great potential of Cu@N-C core-shell nanosphere as a photocatalyst for the remediation of environmental pollution.
Photocatalysis utilizing solar energy is a promising strategy for mitigating energy crisis and environmental pollution. Exploring a cost-effective, stable, eco-friendly, and efficient photocatalytic system is extremely urgent. Herein, copper encapsulated within nitrogen-doped carbon nanosphere (Cu@N-C) possessing a unique core-shell structure with high catalytic activity was prepared by ion-exchange and pyrolysis using resin as support. The protective carbon shell can prevent the leaching of metal ions and deactivation of the catalyst. Benefiting from the special structure, Cu@N-C exhibited excellent activity and durability toward the degradation of tetracycline by the activation of peroxymonosulfate (PMS). The radical trapping experiments and electron spin resonance analyses were applied to elucidate the main reactive species. This work highlights the great potential of Cu@N-C core-shell nanosphere as photocatalyst, which provides a new opportunity for the remediation of environmental pollution. (c) 2021 Elsevier Inc. All rights reserved.
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