期刊
JOURNAL OF MATERIALS SCIENCE
卷 56, 期 3, 页码 2226-2240出版社
SPRINGER
DOI: 10.1007/s10853-020-05436-2
关键词
-
资金
- National Natural Science Foundation of China [21906072, 22006057, 31971616]
- Natural Science Foundation of Jiangsu Province [BK20190982]
- Doctor of Mass entrepreneurship and innovation'' Project in Jiangsu Province, Doctoral Scientific Research Foundation of Jiangsu University of Science and Technology (China) [1062931806, 1142931803]
- Science and Technology Innovation Development Plan of Jilin City [201830811]
- Science Development Project of Jilin City [20190104056]
- Natural Science Foundation Project of Jilin Provincial Science and Technology Development Plan [20190201277JC]
- Science and Technology Research Project of the Department of Education of Jilin Province [JJKH20200039KJ]
- Science and Technology Research Project of Jilin City [20190104120]
This study successfully prepared carbon dots/high-crystalline g-C3N4 composites for the degradation of tetracycline under visible light, with the CDs/H-CN-1 composite showing the best photocatalytic degradation efficiency. The degradation pathways of tetracycline were proposed through LC-MS analysis, and the planting experiment of mung beans further confirmed the biotoxicity of tetracycline degraded products.
Photocatalysts with excellent performance, low cost and innocuity are highly desired for environmental remediation. Zero-dimensional carbon dots with a size of 2-10 nm represent a class of promising co-catalysts due to their excellent photo-induced electron transfer, increased light absorption and thus boosted photocatalytic activity. Herein, carbon dots/high-crystalline g-C3N4 (CDs/H-CN) composites were successfully prepared via a facile calcination method for the degradation of tetracycline (TC) under visible light irradiation. Experimental results reveal that the CDs/H-CN-1 composite displays the optimal photocatalytic degradation of TC (86%, 120 min), and exhibits remarkable photostability (no decrease after 4 cycles of reaction within 480 min). According to the identification of intermediates by liquid chromatography-mass spectrometry (LC-MS) analysis, the degradation pathways of TC were proposed. In addition, the planting experiment of mung beans was performed to further confirm the biotoxicity of TC degraded products. This work underlines the importance of co-catalyst and presents a feasible protocol for the rational construction of H-CN-based photocatalysts for various photocatalytic applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据