Study on preparation of carboxymethyl konjac glucomannan and its adsorption of Pb2+

Chun Mei Niu; Wen Hui Wu; Zhu Wang; Shu Min Li; Jian Quan Wang

Study on preparation of carboxymethyl konjac glucomannan and its adsorption of Pb²⁺

Chun Mei Niu^*, Wen Hui Wu, Zhu Wang, Shu Min Li, Jian Quan Wang

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Under alkaline conditions, carboxymethyl konjac glucomannan with different degree of substitution (DS) was prepared through the reaction of monochloroacetic acid ( MCA) and konjac glucomannan ( KGM) using isopropyl alcohol as dispersing agent. The effects of reaction time, reaction temperature, the amounts of MCA and NaOH on DS and reaction yield were studied, the optimum reaction conditions are as follows: n (KGM) : n (MCA) : n (NaOH) =1:1:2, reacting at 50°C for 4 h. The prepared products were crosslinked with epichlorohydrin ( ECH), the crosslinked carboxymethyl konjac glucomannan (CCMKGM) was able to adsorb Pb²⁺ effectively, it has good adsorptive performance and the desorption percentage is high.

Original language	English
Pages (from-to)	176-178
Number of pages	3
Journal	Xiandai Huagong/Modern Chemical Industry
Volume	26
Issue number	SUPPL.
Publication status	Published - Jul 2006

Keywords

Adsorption
Carboxymethyl konjac glucomannan
Pb ion

Cite this

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title = "Study on preparation of carboxymethyl konjac glucomannan and its adsorption of Pb2+",

abstract = "Under alkaline conditions, carboxymethyl konjac glucomannan with different degree of substitution (DS) was prepared through the reaction of monochloroacetic acid ( MCA) and konjac glucomannan ( KGM) using isopropyl alcohol as dispersing agent. The effects of reaction time, reaction temperature, the amounts of MCA and NaOH on DS and reaction yield were studied, the optimum reaction conditions are as follows: n (KGM) : n (MCA) : n (NaOH) =1:1:2, reacting at 50°C for 4 h. The prepared products were crosslinked with epichlorohydrin ( ECH), the crosslinked carboxymethyl konjac glucomannan (CCMKGM) was able to adsorb Pb2+ effectively, it has good adsorptive performance and the desorption percentage is high.",

keywords = "Adsorption, Carboxymethyl konjac glucomannan, Pb ion",

author = "Niu, {Chun Mei} and Wu, {Wen Hui} and Zhu Wang and Li, {Shu Min} and Wang, {Jian Quan}",

year = "2006",

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language = "English",

volume = "26",

pages = "176--178",

journal = "Xiandai Huagong/Modern Chemical Industry",

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TY - JOUR

T1 - Study on preparation of carboxymethyl konjac glucomannan and its adsorption of Pb2+

AU - Niu, Chun Mei

AU - Wu, Wen Hui

AU - Wang, Zhu

AU - Li, Shu Min

AU - Wang, Jian Quan

PY - 2006/7

Y1 - 2006/7

N2 - Under alkaline conditions, carboxymethyl konjac glucomannan with different degree of substitution (DS) was prepared through the reaction of monochloroacetic acid ( MCA) and konjac glucomannan ( KGM) using isopropyl alcohol as dispersing agent. The effects of reaction time, reaction temperature, the amounts of MCA and NaOH on DS and reaction yield were studied, the optimum reaction conditions are as follows: n (KGM) : n (MCA) : n (NaOH) =1:1:2, reacting at 50°C for 4 h. The prepared products were crosslinked with epichlorohydrin ( ECH), the crosslinked carboxymethyl konjac glucomannan (CCMKGM) was able to adsorb Pb2+ effectively, it has good adsorptive performance and the desorption percentage is high.

AB - Under alkaline conditions, carboxymethyl konjac glucomannan with different degree of substitution (DS) was prepared through the reaction of monochloroacetic acid ( MCA) and konjac glucomannan ( KGM) using isopropyl alcohol as dispersing agent. The effects of reaction time, reaction temperature, the amounts of MCA and NaOH on DS and reaction yield were studied, the optimum reaction conditions are as follows: n (KGM) : n (MCA) : n (NaOH) =1:1:2, reacting at 50°C for 4 h. The prepared products were crosslinked with epichlorohydrin ( ECH), the crosslinked carboxymethyl konjac glucomannan (CCMKGM) was able to adsorb Pb2+ effectively, it has good adsorptive performance and the desorption percentage is high.

KW - Adsorption

KW - Carboxymethyl konjac glucomannan

KW - Pb ion

UR - http://www.scopus.com/inward/record.url?scp=33748680339&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:33748680339

SN - 0253-4320

VL - 26

SP - 176

EP - 178

JO - Xiandai Huagong/Modern Chemical Industry

JF - Xiandai Huagong/Modern Chemical Industry

IS - SUPPL.

ER -

Study on preparation of carboxymethyl konjac glucomannan and its adsorption of Pb²⁺

Abstract

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