Novel Silica Sorbents Surface-Functionalized with a Salicylhydroxamic Acid-Based Ion-Imprinting Polymer for the Selective Removal of Pb(II) from Aqueous Solution
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作者:
Wang, Ruixin
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North Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Peoples R China
Wang, Ruixin
[1
]
Shi, Xiaohui
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North Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Peoples R China
Shi, Xiaohui
[1
]
Wang, Hongjing
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North Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Peoples R China
Wang, Hongjing
[1
]
Lei, Caiping
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North Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Peoples R ChinaNorth Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Peoples R China
Lei, Caiping
[1
]
机构:
[1] North Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Peoples R China
A new Pb(II)-imprinted silica sorbent IIP-SHA/SiO2 has been successfully prepared using the surface imprinting technique. The bidentate and rigid salicylhydroxamic acid was used as the chelating ligand, and a nucleophilic ring-opening reaction of glycidyl with phenolic hydroxyl group was employed as the cross-linking chemistry. The resulting ion-imprinted silica shows enhanced adsorption and more importantly remarkable selectivity toward Pb(II) and excellent reusability in both batch and dynamic adsorption experiments, making it an appealing material for Pb(II) removal from aqueous medium. The spontaneous adsorption process was found to be entropy driven and endothermic. The positive entropy change associated with the adsorption process is unusually large, indicating that the binding pockets after template ion removal are rather rigid which is believed to be responsible for the enhanced selectivity.
机构:
Gazi Univ, Fac Arts & Sci, Biochem Proc & Biomat Res Lab, TR-06500 Ankara, TurkeyGazi Univ, Fac Arts & Sci, Biochem Proc & Biomat Res Lab, TR-06500 Ankara, Turkey
Bayramoglu, Gulay
Arica, M. Yakup
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Gazi Univ, Fac Arts & Sci, Biochem Proc & Biomat Res Lab, TR-06500 Ankara, TurkeyGazi Univ, Fac Arts & Sci, Biochem Proc & Biomat Res Lab, TR-06500 Ankara, Turkey
机构:
Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
Gong, Jingming
Wang, Xiaoqing
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Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
Wang, Xiaoqing
Shao, Xiulan
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Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
Shao, Xiulan
Yuan, Shuang
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Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
Yuan, Shuang
Yang, Chenlin
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Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
Yang, Chenlin
Hu, Xianluo
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Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Coll Mat Sci & Engn, Wuhan 430074, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
机构:
Gazi Univ, Fac Arts & Sci, Biochem Proc & Biomat Res Lab, TR-06500 Ankara, TurkeyGazi Univ, Fac Arts & Sci, Biochem Proc & Biomat Res Lab, TR-06500 Ankara, Turkey
Bayramoglu, Gulay
Arica, M. Yakup
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Gazi Univ, Fac Arts & Sci, Biochem Proc & Biomat Res Lab, TR-06500 Ankara, TurkeyGazi Univ, Fac Arts & Sci, Biochem Proc & Biomat Res Lab, TR-06500 Ankara, Turkey
机构:
Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
Gong, Jingming
Wang, Xiaoqing
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Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
Wang, Xiaoqing
Shao, Xiulan
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Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
Shao, Xiulan
Yuan, Shuang
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Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
Yuan, Shuang
Yang, Chenlin
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Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China
Yang, Chenlin
Hu, Xianluo
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Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Coll Mat Sci & Engn, Wuhan 430074, Peoples R ChinaCent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China