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¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï jshliu: ½ð±Ò+15, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2014-12-14 21:18:00 oven1986: LS-EPI+1, ¸ÐлӦÖú¡£ 2014-12-14 22:50:23
Novel Silica-Based Hybrid Adsorbents: Copper(II) Adsorption Isotherms and Thermodynamics
×÷Õß:Hu, KY (Hu, Keyan)[ 1 ] ; Liu, JS (Liu, Junsheng)[ 1 ] ; Chen, XH (Chen, Xinghua)[ 1 ] ; Xu, M (Xu, Min)[ 1 ] ; Wang, KC (Wang, Kechun)[ 1 ]
ASIAN JOURNAL OF CHEMISTRY
¾í: 26 ÆÚ: 13 Ò³: 3845-3848 ×Ó¼: A
³ö°æÄê: JUL 2014
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In this study, copper(II) adsorption isotherms and thermodynamic data have been investigated using a hybrid membrane as an adsorbent. It is found that copper(II) adsorption on sample D followed the Freundlich isotherm model. Moreover, it is found that the adsorption capacity of copper(II) on sample D increases with an increase in solution temperature and the Delta G values are changed from positive to negative as the temperature increased, suggesting that copper(II) adsorption is an endothermic and spontaneous in nature as the solution temperature was elevated to higher level. In addition, based on intraparticle diffusion, it is confirmed that copper(II) adsorption is not governed by intraparticle diffusion and diffusion-controlled adsorption mechanism might be the major control process. This finding is meaningful in the removal of copper(II) from aqueous solution using hybrid membrane as an adsorbent.
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×÷Õ߹ؼü´Ê:Hybrid membrane; Adsorption; Isotherms; Thermodynamics; Copper(II) removal
KeyWords Plus:AQUEOUS-SOLUTION; REMOVAL; EQUILIBRIUM; KINETICS; METALS; ACID
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ͨѶ×÷ÕßµØÖ·: Liu, JS (ͨѶ×÷Õß)
Hefei Univ, Dept Chem & Mat Engn, Key Lab Membrane Mat & Proc, 99 Jinxiu Rd, Hefei 230601, Peoples R China.
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[ 1 ] Hefei Univ, Dept Chem & Mat Engn, Key Lab Membrane Mat & Proc, Hefei 230601, Peoples R China
µç×ÓÓʼþµØÖ·:jsliu@hfuu.edu.cn
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National Natural Science Foundation of China
21076055
Significant Foundation of Educational Committee of Anhui Province
ZD2008002-1
2th National-level College Students' Innovative Entrepreneurial Training Plan Program
201211059010
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ASIAN JOURNAL OF CHEMISTRY, 11/100 RAJENDRA NAGAR, SECTOR 3,, SAHIBABAD 201 005, GHAZIABAD, INDIA
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Ñо¿·½Ïò:Chemistry
Web of Science Àà±ð:Chemistry, Multidisciplinary
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ÎÄÏ×ÀàÐÍ:Article
ÓïÖÖ:English
Èë²ØºÅ: WOS:000343763700019
ISSN: 0970-7077
µç×Ó ISSN: 0975-427X
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Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports®
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IDS ºÅ: AR7ML
Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 13
Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0 |
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