Cadmium Adsorption Characteristic of Cellulose-gel Manufacture using Alkali Solvent

Kyo-Jung Hwang; Gu-Joong Kwon; Ji-Wook Yang; Won-Jung Hwang; Jae-Hyun Hwang; Dae-Young Kim

doi:10.7584/ktappi.2015.47.6.113

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Cadmium Adsorption Characteristic of Cellulose-gel Manufacture using Alkali Solvent 알칼리 용제를 이용하여 제조한 셀룰로오스 겔의 카드뮴 흡착특성

30 December 2015. pp. 113-122

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Abstract

This study was carried out to investigate the characterization of cadmium adsorption by cellulose hydrogel and aerogel. Hydrogel and aerogel were made from ashless pulp dissolved in alkali hydroxide-urea aqueous solution and manufactured in film and bead types. After regeneration of cellulose, hydrogel went through the process of substitution of organic solvent and freeze-dry in order to make aerogel. SEM was used to analyze the microstructure of hydrogel and aerogel. Experiment was conducted in various concentrations and pH conditions to find out the characteristic of cadmium adsorption. After that, EDS was used to identify existence and distribution of cadmium in hydrogel and aerogel. The result from comparisons of cadmium adsorption shows that bead type aerogel has the maximum cadmium adsorption and film type hydrogel has the minimum cadmium adsorption.

Keywords

Cellulose

alkali hydroxide-urea solution

hydrogel

aerogel

cadmium adsorption

References

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Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 47
No :6
Pages :113-122
Received Date : 2015-11-10
Revised Date : 2015-12-15
Accepted Date : 2015-12-17
DOI :https://doi.org/10.7584/ktappi.2015.47.6.113

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

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