Melem-based derivatives as metal-free photocatalysts for simultaneous reduction of Cr(VI) and degradation of 5-Sulfosalicylic acid

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Melem-based derivatives as metal-free photocatalysts for simultaneous reduction of Cr(VI) and degradation of 5-Sulfosalicylic acid
	Lan, Huachun; Li, Lili; Liu, Huijuan; An, Xiaoqiang; Liu, Fei; Chen, Cuibai; Qu, Jiuhui
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2017-12-01
卷号	507 期号:0 页码:162-171
关键词	Carbon Nitride Synergetic Reactions Melem Derivatives Environmental Remediation
英文摘要	Carbon nitride has been considered as promising metal-free polymers for low-cost photocatalysis. Most prevailing concern about this fantastic material focuses on g-C3N4, while the potential of other derivatives have been overlooked. Herein, in order to determine the desired derivatives for environmental pollutant treatment, the impact of degree of thermal polymerization on the microstructure of carbon nitride was investigated. Interestingly, melem-based derivatives exhibit 4- and 6-fold enhanced activities than g-C3N4, when used as synergetic photocatalysts for the simultaneous treatment of heavy metal ions and organic contaminants. According to the fundamental study of reactive species formation, a microstructure-dependent photocatalytic mechanism was established. Hydrogen bond-facilitated trapping of photogenerated holes and superior ability for oxygen molecular activation contributed to the high-performance of melem-based derivatives. In contrast, g-C3N4 shows inferior performance during superoxide radical-dominated photodegradation reactions, as its microstructure is favorable for the generation of circle OH. Our research not only sheds new insights into the microstructure design of metal-free carbon nitride photocatalysts, but also has immense scientific and technological values for high efficiency and synergetic environmental applications. (C) 2017 Elsevier Inc. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39715]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
推荐引用方式 GB/T 7714	Lan, Huachun,Li, Lili,Liu, Huijuan,et al. Melem-based derivatives as metal-free photocatalysts for simultaneous reduction of Cr(VI) and degradation of 5-Sulfosalicylic acid[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,507(0):162-171.
APA	Lan, Huachun.,Li, Lili.,Liu, Huijuan.,An, Xiaoqiang.,Liu, Fei.,...&Qu, Jiuhui.(2017).Melem-based derivatives as metal-free photocatalysts for simultaneous reduction of Cr(VI) and degradation of 5-Sulfosalicylic acid.JOURNAL OF COLLOID AND INTERFACE SCIENCE,507(0),162-171.
MLA	Lan, Huachun,et al."Melem-based derivatives as metal-free photocatalysts for simultaneous reduction of Cr(VI) and degradation of 5-Sulfosalicylic acid".JOURNAL OF COLLOID AND INTERFACE SCIENCE 507.0(2017):162-171.