Tetracycline removal by double-metal-crosslinked alginate/graphene hydrogels through an enhanced Fenton reaction

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

	Tetracycline removal by double-metal-crosslinked alginate/graphene hydrogels through an enhanced Fenton reaction
	Kong, Yan; Zhuang, Yuan; Shi, Baoyou
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2020-01-15
卷号	382 页码:1-12
关键词	Alginate Fenton Hydrogel Tetracycline
ISSN号	0304-3894
英文摘要	Polymer hydrogel usually has limited catalytic activity and stability in Fenton catalysis. Here, we presented for the first time the preparation of a novel double-metal-crosslinked alginate hydrogel using graphene oxide to facilitate the Fe(II)/Fe(III) redox cycles. Five multivalent metal cations were used as crosslinkers to prepare different alginate-GO-M (Fe(III), Fe(II), La(III), Ce(III), and Co(II)), and the effects of assisted metal cations (La (III), Ce(III), and Co(II)) on different Fe(11) bimetallic alginate-GO-Fe-M(AG-Fe-M) complexes were investigated. Double-metal-crosslinked alginate-GO hydrogels can degrade tetracycline much faster during the initial 10 min than single-metal-crosslinked hydrogels. In addition, the release of iron from AG-Fe-Ce (10.59 ppm) was less than that from AG-Fe-Co (21.57 ppm) and AG-Fe-La (25.6 ppm) during the Fenton reaction. More importantly, the AG-Fe-Ce did not release TOC and maintained most of the catalytic activity after four reuse cycles, confirmed its excellent stability. For the treatment of raw water containing a high proportion of proteinaceous matter and tetracycline, the AG-Fe-Ce significantly reduced the molecular weight of the dissolved organic matter. We deduced that the humic acid and protein show good complexation ability to tetracycline, thereby reduced its bioavailability. This study provides new insights into the synthesis of polymer catalysts for water treatment.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45367]
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	Kong, Yan,Zhuang, Yuan,Shi, Baoyou. Tetracycline removal by double-metal-crosslinked alginate/graphene hydrogels through an enhanced Fenton reaction[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,382:1-12.
APA	Kong, Yan,Zhuang, Yuan,&Shi, Baoyou.(2020).Tetracycline removal by double-metal-crosslinked alginate/graphene hydrogels through an enhanced Fenton reaction.JOURNAL OF HAZARDOUS MATERIALS,382,1-12.
MLA	Kong, Yan,et al."Tetracycline removal by double-metal-crosslinked alginate/graphene hydrogels through an enhanced Fenton reaction".JOURNAL OF HAZARDOUS MATERIALS 382(2020):1-12.