Removal of I- from Aqueous Solutions Using a Biomass Carbonaceous Aerogel Modified with KH-560

doi:10.1021/acssuschemeng.7b01145

ISL OpenIR > 青海盐湖研究所知识仓储

	Removal of I- from Aqueous Solutions Using a Biomass Carbonaceous Aerogel Modified with KH-560
	Sun, Li; Zhang, Yujie; Ye, Xiushen; Liu, Haining; Zhang, Huifang; Wu, Aiguo; Wu, Zhijian
第一作者	Sun, Li
	2017-09
发表期刊	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN	2168-0485
卷号	5 期号:9 页码:7700-7708
关键词	Iodide Ion Biomass Carbonaceous Aerogel Kh-560 Adsorption Regeneration
摘要	Materials capable of separating and removing iodine ions (I-) from aqueous solutions are significant to our society, especially human health. Adsorption is one of the effective I- separation methods. In this work, a novel biomass carbonaceous aerogel (CA) modified with 3-glycidyl-oxypropyl-trimethoxy-silane (KH-560) was prepared and used for I- adsorption for the first time. This preparation process of CA@KH-560 is easily accessible. The results of characterization demonstrated that CA and CA@KH-560 have three-dimensional porous structure with the sheetlike skeletons connected to each other, and KH-560 effectively entered into the matrix of CA. Adsorption experiments were carried out systematically by changing the pH, adsorption time, ionic strength, temperature, and ion concentration. The maximal adsorption capacity for I- is 2.5 mmol/g at an initial pH of 1.5. The adsorption can reach equilibrium within 24 h, and the data of adsorption kinetics fitted the pseudo-second-order model very well. The adsorption isotherm model Langmuir, Freundlich, and Tempkin isotherms were studied, and the results showed that the Langmuir model is the best-fitting one for the experimental results. Moreover, CA@KH-560 shows excellent regenerating ability, and the regeneration process is relatively simple.
DOI	10.1021/acssuschemeng.7b01145
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6252
专题	青海盐湖研究所知识仓储盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Sun, Li,Zhang, Yujie,Ye, Xiushen,et al. Removal of I- from Aqueous Solutions Using a Biomass Carbonaceous Aerogel Modified with KH-560[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(9):7700-7708.
APA	Sun, Li.,Zhang, Yujie.,Ye, Xiushen.,Liu, Haining.,Zhang, Huifang.,...&Wu, Zhijian.(2017).Removal of I- from Aqueous Solutions Using a Biomass Carbonaceous Aerogel Modified with KH-560.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(9),7700-7708.
MLA	Sun, Li,et al."Removal of I- from Aqueous Solutions Using a Biomass Carbonaceous Aerogel Modified with KH-560".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.9(2017):7700-7708.

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