Adsorption behaviors of iodide anion on silver loaded macroporous silicas

Hao Wu; Yan Wu; Zi Chen; Yue Zhou Wei

doi:10.13538/j.1001-8042/nst.26.030301

Adsorption behaviors of iodide anion on silver loaded macroporous silicas

Hao Wu, Yan Wu, Zi Chen, Yue Zhou Wei

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

6 Citations (Scopus)

Abstract

A macroporous silica-based silver loaded adsorbent was synthesized by grafting the silver complexes of thiourea (Ag(tu)₃NO₃) into a silica-based copolymer support (SiO₂-P). The adsorbent was used to uptake iodide anions (I^-) by batch and column techniques. The kinetic and saturated adsorption experiments were carried out by varying the shaking times and initial concentration of I^-. Experimental results shown that the kinetic adsorption of I^- was controlled by a pseudo second order model and the saturated adsorption of I^- was controlled by the chemisorption mechanism, which followed a Langmuir adsorption equation. The breakthrough curve of I^- had a S-shaped profile. The column efficiency was estimated to be over 90%.

Original language	English
Article number	030301
Journal	Nuclear Science and Techniques
Volume	26
Issue number	3
DOIs	https://doi.org/10.13538/j.1001-8042/nst.26.030301
Publication status	Published - 2015 Jun 15
Externally published	Yes

Keywords

Grafting
Iodide anion
Macroporous silica-based support
Radioactive contaminated wastewater
Silver complexes of thiourea

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering

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10.13538/j.1001-8042/nst.26.030301

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title = "Adsorption behaviors of iodide anion on silver loaded macroporous silicas",

abstract = "A macroporous silica-based silver loaded adsorbent was synthesized by grafting the silver complexes of thiourea (Ag(tu)3NO3) into a silica-based copolymer support (SiO2-P). The adsorbent was used to uptake iodide anions (I-) by batch and column techniques. The kinetic and saturated adsorption experiments were carried out by varying the shaking times and initial concentration of I-. Experimental results shown that the kinetic adsorption of I- was controlled by a pseudo second order model and the saturated adsorption of I- was controlled by the chemisorption mechanism, which followed a Langmuir adsorption equation. The breakthrough curve of I- had a S-shaped profile. The column efficiency was estimated to be over 90%.",

keywords = "Grafting, Iodide anion, Macroporous silica-based support, Radioactive contaminated wastewater, Silver complexes of thiourea",

author = "Hao Wu and Yan Wu and Zi Chen and Wei, {Yue Zhou}",

note = "Funding Information: Supported by National Natural Science Foundation of China (Nos. 21261140335 and 91126006) and the Scientific Research Foundation for Youth Scholars of Shanghai Jiao Tong University (No. AF0200003) Publisher Copyright: {\textcopyright} 2015, Science Press. All rights reserved.",

year = "2015",

month = jun,

day = "15",

doi = "10.13538/j.1001-8042/nst.26.030301",

language = "English",

volume = "26",

journal = "Nuclear Science and Techniques/Hewuli",

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TY - JOUR

T1 - Adsorption behaviors of iodide anion on silver loaded macroporous silicas

AU - Wu, Hao

AU - Wu, Yan

AU - Chen, Zi

AU - Wei, Yue Zhou

N1 - Funding Information: Supported by National Natural Science Foundation of China (Nos. 21261140335 and 91126006) and the Scientific Research Foundation for Youth Scholars of Shanghai Jiao Tong University (No. AF0200003) Publisher Copyright: © 2015, Science Press. All rights reserved.

PY - 2015/6/15

Y1 - 2015/6/15

N2 - A macroporous silica-based silver loaded adsorbent was synthesized by grafting the silver complexes of thiourea (Ag(tu)3NO3) into a silica-based copolymer support (SiO2-P). The adsorbent was used to uptake iodide anions (I-) by batch and column techniques. The kinetic and saturated adsorption experiments were carried out by varying the shaking times and initial concentration of I-. Experimental results shown that the kinetic adsorption of I- was controlled by a pseudo second order model and the saturated adsorption of I- was controlled by the chemisorption mechanism, which followed a Langmuir adsorption equation. The breakthrough curve of I- had a S-shaped profile. The column efficiency was estimated to be over 90%.

AB - A macroporous silica-based silver loaded adsorbent was synthesized by grafting the silver complexes of thiourea (Ag(tu)3NO3) into a silica-based copolymer support (SiO2-P). The adsorbent was used to uptake iodide anions (I-) by batch and column techniques. The kinetic and saturated adsorption experiments were carried out by varying the shaking times and initial concentration of I-. Experimental results shown that the kinetic adsorption of I- was controlled by a pseudo second order model and the saturated adsorption of I- was controlled by the chemisorption mechanism, which followed a Langmuir adsorption equation. The breakthrough curve of I- had a S-shaped profile. The column efficiency was estimated to be over 90%.

KW - Grafting

KW - Iodide anion

KW - Macroporous silica-based support

KW - Radioactive contaminated wastewater

KW - Silver complexes of thiourea

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U2 - 10.13538/j.1001-8042/nst.26.030301

DO - 10.13538/j.1001-8042/nst.26.030301

M3 - Article

AN - SCOPUS:84949003960

VL - 26

JO - Nuclear Science and Techniques/Hewuli

JF - Nuclear Science and Techniques/Hewuli

SN - 1001-8042

IS - 3

M1 - 030301

ER -

Adsorption behaviors of iodide anion on silver loaded macroporous silicas

Abstract

Keywords

ASJC Scopus subject areas

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