Preparation of pyridine Schiff base grafted ion-imprinted mesoporous sorbent for selective separation of Pb(II) from aqueous medium

被引：0
作者：
Yingming Mao
Qiongxin Gou
Guohao Wu
Ying Yang
Ming Chen
Yuanyuan Zhang
机构：
[1] Jiangsu Ocean University,School of Environmental and Chemical Engineering
[2] Jiangsu Ocean University,Jiangsu Key Laboratory of Function Control Technology for Advanced Materials
[3] Lianyungang TCM Branch of Jiangsu Union Technical Institute,undefined
来源：
Journal of Sol-Gel Science and Technology | 2022年 / 102卷
关键词：
Pb(II) ion-imprinted; Mesoporous silica; Pyridine Schiff base; Selective adsorption;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A pyridine Schiff base grafted ion-imprinted mesoporous silica adsorbent (IIMS-HAp) was designed and prepared using Pb(II) as the template ions. The as-synthesized IIMS-HAp exhibited the pH-dependent removal of Pb(II) in water, and the sorption data agreed well with pseudo-second-order kinetic and Langmuir isotherm models. The theoretical maximum adsorption capacity of IIMS-HAp toward Pb(II) was 70.27 mg/g at pH 6.0, which was higher than that of non-imprinted counterpart. Moreover, the adsorbent showed high extraction selectivity toward Pb(II) over other co-existed cations. Owing to the excellent reusability, IIMS-HAp can be employed as a selective adsorbent for the efficient removal of Pb(II) from aqueous solution.
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页码：454 / 464
页数：10
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  • [1] Briffa J(2020)Heavy metal pollution in the environment and their toxicological effects on humans Heliyon 6 e04691-418
  • [2] Sinagra E(2022)Thiourea-functionalized graphene aerogel for the aqueous phase sensing of toxic Pb(II) metal ions and H Chemosphere 287 132105-1653
  • [3] Blundell R(2011)O J Environ Manag 92 407-145
  • [4] Kaushik J(2021)Removal of heavy metal ions from wastewaters: a review J Clean Prod 296 126589-116
  • [5] Gunture KM(2020)A review on conventional and novel materials towards heavy metal adsorption in wastewater treatment application J Environ Chem Eng 8 104002-1168
  • [6] Tripathi R(2019)Simultaneous adsorption of Zn(II) and Hg(II) ions on selective adsorbent of dithizone-immobilized bentonite in the presence of Mg(II) Ion Environ Sci: Water Res Technol 5 1626-4612
  • [7] Singh SK(2021)Recent advances in ion-imprinted membranes: separation and detection via ion-selective recognition Chem Eng Res Des 168 135-569
  • [8] Sonkar F(2006)Experimental and DFT studies on highly selective separation of indium ions using silica gel/graphene oxide based ion-imprinted composites as a sorbent Anal Chim Acta 578 105-177
  • [9] Fu Q(2019)Metal ion-imprinted polymers—novel materials for selective recognition of inorganics Microchem J 146 1160-710
  • [10] Wang WS(2020)Synthesis of ultrasonic-assisted lead ion imprinted polymer as a selective sorbent for the removal of Pb2+ in a real water sample Colloids Surf A 585 124139-2114
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