Desorption and Reusable Properties of a New Boron-Selective Hybrid Gel Adsorbent

Abstract:

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A hybrid gel adsorbent bearing boron-selective functional groups was prepared by the reaction of bis(trimethoxysilylpropyl)amine (TSPA) and a gel precursor in water. The gel precursor was synthesized from (3-glycidoxypropyl)trimethoxysilane (GPTMS) and N-methylglucamine (MG). The boron adsorption behavior of the gel and a commercial boron-selective resin D564 was investigated. The gel adsorbent has a suitable mechanical strength and an adsorption capacity of 2.00 mmol g-1, which is higher than that of the resin D564 (1.64 mmol g­-1). Boron can be desorbed from both the gel and the resin D564 with a 0.25 mol L-1 HCl solution. The good reusability of both the gel and the resin D564 was confirmed by fourteen consecutive adsorption-desorption-regeneration cycles.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

2692-2695

DOI:

10.4028/www.scientific.net/AMR.233-235.2692

Citation:

X. S. Ye et al., "Desorption and Reusable Properties of a New Boron-Selective Hybrid Gel Adsorbent", Advanced Materials Research, Vols. 233-235, pp. 2692-2695, 2011

Online since:

May 2011

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Price:

$35.00

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