Thermodynamics of Cr(VI) adsorption on thiourea chelating ion exchange fiber

Yan Qiang Jian; Ming Yu Li; Qing Xuan Zeng

doi:10.4028/www.scientific.net/AMR.894.121

Thermodynamics of Cr(VI) adsorption on thiourea chelating ion exchange fiber

Yan Qiang Jian, Ming Yu Li, Qing Xuan Zeng

School of Mechatronical Engineering

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

A chelating ion exchange fiber containing thioureido groups for the removal of Cr (VI) has been prepared from chloramethylated styrene grafted polypropylene fiber (2.96 mmol/g Cl) reacted with thiourea, batch adsorption experiments are adopted to investigate its adsorption equilibrium properties, Adsorption isotherms at various temperatures were obtained. Langmuir linear equation model can well describe the adsorption equilibrium data suggesting that the adsorption process involves both chemisorption and physisorption. The values of thermodynamic parameters, including ΔH, ΔG and ΔS, indicate that the adsorption of Cr (VI) is a spontaneous, entropy-driven and endothermic process.

Original language	English
Title of host publication	Advanced Materials Research IV
Pages	121-124
Number of pages	4
DOIs	https://doi.org/10.4028/www.scientific.net/AMR.894.121
Publication status	Published - 2014
Event	2014 4th International Conference on Advanced Materials Research, ICAMR 2014 - Macau, China Duration: 22 Jan 2014 → 23 Jan 2014

Publication series

Name	Advanced Materials Research
Volume	894
ISSN (Print)	1022-6680

Conference

Conference	2014 4th International Conference on Advanced Materials Research, ICAMR 2014
Country/Territory	China
City	Macau
Period	22/01/14 → 23/01/14

Keywords

Hexavalent chromium
Isotherm
Thiourea chelating ion exchange fiber

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10.4028/www.scientific.net/AMR.894.121

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@inproceedings{eb5e971857294664885a652dba2d7432,

title = "Thermodynamics of Cr(VI) adsorption on thiourea chelating ion exchange fiber",

abstract = "A chelating ion exchange fiber containing thioureido groups for the removal of Cr (VI) has been prepared from chloramethylated styrene grafted polypropylene fiber (2.96 mmol/g Cl) reacted with thiourea, batch adsorption experiments are adopted to investigate its adsorption equilibrium properties, Adsorption isotherms at various temperatures were obtained. Langmuir linear equation model can well describe the adsorption equilibrium data suggesting that the adsorption process involves both chemisorption and physisorption. The values of thermodynamic parameters, including ΔH, ΔG and ΔS, indicate that the adsorption of Cr (VI) is a spontaneous, entropy-driven and endothermic process.",

keywords = "Hexavalent chromium, Isotherm, Thiourea chelating ion exchange fiber",

author = "Jian, \{Yan Qiang\} and Li, \{Ming Yu\} and Zeng, \{Qing Xuan\}",

year = "2014",

doi = "10.4028/www.scientific.net/AMR.894.121",

language = "English",

isbn = "9783038350323",

series = "Advanced Materials Research",

pages = "121--124",

booktitle = "Advanced Materials Research IV",

note = "2014 4th International Conference on Advanced Materials Research, ICAMR 2014 ; Conference date: 22-01-2014 Through 23-01-2014",

}

TY - GEN

T1 - Thermodynamics of Cr(VI) adsorption on thiourea chelating ion exchange fiber

AU - Jian, Yan Qiang

AU - Li, Ming Yu

AU - Zeng, Qing Xuan

PY - 2014

Y1 - 2014

N2 - A chelating ion exchange fiber containing thioureido groups for the removal of Cr (VI) has been prepared from chloramethylated styrene grafted polypropylene fiber (2.96 mmol/g Cl) reacted with thiourea, batch adsorption experiments are adopted to investigate its adsorption equilibrium properties, Adsorption isotherms at various temperatures were obtained. Langmuir linear equation model can well describe the adsorption equilibrium data suggesting that the adsorption process involves both chemisorption and physisorption. The values of thermodynamic parameters, including ΔH, ΔG and ΔS, indicate that the adsorption of Cr (VI) is a spontaneous, entropy-driven and endothermic process.

AB - A chelating ion exchange fiber containing thioureido groups for the removal of Cr (VI) has been prepared from chloramethylated styrene grafted polypropylene fiber (2.96 mmol/g Cl) reacted with thiourea, batch adsorption experiments are adopted to investigate its adsorption equilibrium properties, Adsorption isotherms at various temperatures were obtained. Langmuir linear equation model can well describe the adsorption equilibrium data suggesting that the adsorption process involves both chemisorption and physisorption. The values of thermodynamic parameters, including ΔH, ΔG and ΔS, indicate that the adsorption of Cr (VI) is a spontaneous, entropy-driven and endothermic process.

KW - Hexavalent chromium

KW - Isotherm

KW - Thiourea chelating ion exchange fiber

UR - http://www.scopus.com/inward/record.url?scp=84903365829&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/AMR.894.121

DO - 10.4028/www.scientific.net/AMR.894.121

M3 - Conference contribution

AN - SCOPUS:84903365829

SN - 9783038350323

T3 - Advanced Materials Research

SP - 121

EP - 124

BT - Advanced Materials Research IV

T2 - 2014 4th International Conference on Advanced Materials Research, ICAMR 2014

Y2 - 22 January 2014 through 23 January 2014

ER -

Thermodynamics of Cr(VI) adsorption on thiourea chelating ion exchange fiber

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