阴离子β-环糊精/Fe3O4磁性微球对Cu2+的吸附

doi:10.3969/j.issn.0438-1157.2014.06.027

化工学报 ›› 2014, Vol. 65 ›› Issue (6): 2148-2155.DOI: 10.3969/j.issn.0438-1157.2014.06.027

阴离子β-环糊精/Fe₃O₄磁性微球对Cu²⁺的吸附

李凯斌, 沈一丁, 费贵强, 李仲谨

陕西科技大学化学与化工学院, 教育部轻化工助剂化学与技术重点实验室, 陕西西安 710021

收稿日期:2013-08-23 修回日期:2014-02-11 出版日期:2014-06-05 发布日期:2014-06-05
通讯作者: 沈一丁
作者简介:李凯斌（1989- ），男，硕士研究生。
基金资助:
国家自然科学基金项目（50573046）；陕西省科技计划自然基金项目（2012JM2016）；陕西科技大学研究生创新工程种子项目（2013014）；陕西科技大学研究生创新基金项目。

Adsorption of Cu²⁺ by anionic β-cyclodextrin/Fe₃O₄ magnetic microspheres

LI Kaibin, SHEN Yiding, FEI Guiqiang, LI Zhongjin

Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Xi'an 710021, Shaanxi, China

Received:2013-08-23 Revised:2014-02-11 Online:2014-06-05 Published:2014-06-05
Supported by:
supported by the National Natural Science Foundation of China (50573046)，Shaanxi Provincial Natural Science Research Foundation Project(2012JM2016) and the Postgraduate Innovation Foundation Seed Project of Shaanxi University of Science & Technology (2013014).

摘要/Abstract

摘要： 通过对b-环糊精（b-CD）改性制备了阴离子b-环糊精/Fe₃O₄磁性微球（b-CDM），并研究了b-CDM对Cu²⁺吸附的热力学、动力学及循环使用性能，借助数学拟合的方法得到了吸附热力学和动力学参数，探讨其吸附机理。研究表明，b-CDM对Cu²⁺的吸附是一个自发的放热过程，Langmuir与Freundlich等温吸附模型均适用于b-CDM对Cu²⁺的吸附研究，b-CDM对Cu²⁺的吸附经历颗粒外部扩散-孔隙扩散-吸附反应3个阶段，该吸附过程既存在物理吸附，又有化学吸附，在吸附温度298、308、318 K下得到的吸附速率常数分别为0.0906、0.1161、0.1674 g·mmol^-¹·min^-¹，吸附表观活化能为24.12 kJ·mol^-¹，且随着介质中Cu²⁺平衡吸附量的增大，b-CDM对Cu²⁺的吸附驱动力由焓变转变为熵变。b-CDM重复利用8次后，对Cu²⁺的除去率由首次使用时的95.20%下降至88.21%。

关键词: b-环糊精, 磁性微球, 吸附, 动力学, 热力学

Abstract: Anionic b-CD/Fe₃O₄ magnetic microspheres (b-CDM) were prepared by modified b-cyclodextrin. The adsorption thermodynamics, kinetics and recycle about the adsorption of Cu²⁺ by b-CDM were studied. With a mathematical fitting method, adsorption thermodynamic and kinetic parameters were obtained, and adsorption mechanism was discussed. Thermodynamic studies show that the adsorption of Cu²⁺ by b-CDM is spontaneous and it is an exothermic process. Further study indicates that it is appropriate to use Langmuir and Freundlich isothermal adsorption models to study the adsorption process. Kinetic study shows that the adsorption of Cu²⁺ by b-CDM is a process consisting of three stages, which are external diffusion, pore diffusion and adsorption reaction. Both physical adsorption and chemical adsorption take place. The value of apparent adsorption activation energy is 24.12 kJ·mol^-1. At adsorption temperature of 298 K, 308 K, and 318 K, the adsorption rate constants are 0.0906, 0.1161, 0.1674 g·mmol^-¹·min^-¹, respectively. As the equilibrium absorption capacity of Cu²⁺ increases, the driving force of adsorption varies from enthalpy change to entropy change. After b-CDM was reused for 8 times, the removal rate declined from 95.20% to 88.21%.

Key words: b-CD, magnetic microsphere, adsorption, dynamics, thermodynamics

中图分类号:

X703
O647.3

李凯斌, 沈一丁, 费贵强, 李仲谨. 阴离子β-环糊精/Fe₃O₄磁性微球对Cu²⁺的吸附[J]. 化工学报, 2014, 65(6): 2148-2155.

LI Kaibin, SHEN Yiding, FEI Guiqiang, LI Zhongjin. Adsorption of Cu²⁺ by anionic β-cyclodextrin/Fe₃O₄ magnetic microspheres[J]. CIESC Journal, 2014, 65(6): 2148-2155.

参考文献 20

[1]	Li Lansong(李兰松), Yang Yongzhen(杨永珍), Jia Husheng(贾虎生), Yang Liqing(杨利擎), Cao Qiufen(曹秋芬), Liu Xuguang(刘旭光). Isolation and Cu2+ biosorption of metal-tolerant bacterium [J]. CIESC Journal(化工学报), 2013, 64(9): 3381-3389
[2]	Wang Sisi (王思思), Ying Xiaoguang (英晓光), Zhang Weiying (张卫英), Li Xiao(李晓). Preparation and properties of spherical chitosan hydrogel crosslinked with L-cystine for Cu2+ adsorption [J].CIESC Journal(化工学报), 2013, 64(9): 3437-3445
[3]	Su Yuanbo(苏远波), Li Qingbiao(李清彪), Wang Yuanpeng(王远鹏), Wang Haitao(王海涛), Hong Jinqing(洪金庆). Silver recovery and cyanide removal from silver-plating wastewater using pulse-electrolysis [J].CIESC Journal(化工学报), 2009, 60(9): 2308-2313
[4]	Magnenet C, Jurin F E, Lakard S, Buron C C, Lakard B. Polyelectrolyte modification of ultrafiltration membrane for removal of copper ions [J]. Colloidsand Surfaces A: Physicochem. Eng. Aspects, 2013, 435(20) : 170-177
[5]	Mahmoud A, Hoadley A F A. An evaluation of a hybrid ion exchange electrodialysis process in the recovery of heavy metals from simulated dilute industrial wastewater [J]. Water Research, 2012, 46(10): 3364-3376
[6]	Elsa Quartapelle Procopio, Tomohiro Fukushima, Elisa Barea, Jorge A R Navarro, Satoshi Horike, Susumu Kitagawa. A soft copper(Ⅱ) porous coordination polymer with unprecedented aqua bridge and selective adsorption properties [J]. Chem.-Eur. J., 2012, 18(41): 13117-13125
[7]	Wan Ngah W S, Teong L C, Toh R H, Hanafiah M A K M. Utilization of chitosan-zeolite composite in the removal of Cu(Ⅱ) from aqueous solution: adsorption, desorption and fixed bed column studies [J]. Chem. Eng. J., 2012, 209: 46-53
[8]	Li Dawei(李大伟), Chen Dengyu(陈登宇), Zhu Xifeng(朱锡锋). Characterization and Cu(Ⅱ) adsorption property of rice-husk-char-based porous silica with large specific surface area [J]. CIESC Journal (化工学报), 2011, 62(12): 3434-3439
[9]	Hu J, Yang S, Wang X. Adsorption of Cu(Ⅱ) on β-cyclodextrin modified multiwall carbon nanotube/iron oxides in the absence/presence of fulvic acid [J]. JCTB, 2012, 87(5): 673-681
[10]	Lai S L, Chai Q, Han W J, Wang B. Chemical modification of β-cyclodextrin-g-chitosan and its adsorption on Pb2+ [J]. AMM, 2012, 138: 1007-1011
[11]	Zhang Baoliang(张宝亮), Zhang Qiuyu(张秋禹), Zhang Hepeng (张和鹏), Fan Xinlong (范新龙), Li Xiangjie (厉向杰), Lei Xingfeng(雷星锋). Preparation of Fe3O4/P(GMA-co-EGDMA) magnetic composite microspheres with high specific surface area by deposit of porous templates [J].CIESC Journal(化工学报), 2012, 63(4): 1308-1314
[12]	Wu Y, Han C. Removal of chromium Cr(Ⅵ) by Fe3O4 hollow spheres from wastewater [J]. Asian J. Chem., 2012, 24(9): 4062-4064
[13]	Wan H L, Deligeer W, Zhao S Q, Asuha S. Synthesis of water-soluble Fe3O4 nanopowder and its Cr(Ⅵ) adsorption properties [J]. Adv. Mater. Res., 2013, 624: 55-58
[14]	Gao Zhishuang(高之爽), Wang Jing(汪静), Chen Zhenbang(陈振邦), Guan Zhiwei(关治卫), Zhang Yimin(张逸民), Liu Zhongmin(刘忠民), Yang Delin(杨德林), Hu Xing(胡行), Guo Yiqun(郭益群). Oxidation catalysis of YBCO in purifying nitrogen [J]. Journal of The Chinese Rare Earth Society (中国稀土学报), 2008, 26(4): 443-449
[15]	Xie Guoren (谢国仁), Shang Xiaoqin(尚小琴), Liu Rufeng (刘汝峰), Hu Jing(胡晶), Hu Zhuo(胡卓). Adsorption of Pb(Ⅱ) on copolymer of glycidyl methacrylete grafted on starch modified with ethylenediamine [J].CIESC Journal(化工学报), 2011, 62(4): 970-976
[16]	Wang Xinghui(王兴慧), Zhu Guiru(朱桂茹), Gao Congjie(高从堦). Adsorption of uranium (Ⅵ) in silica mesoporous material SBA-15 with short channels [J]. CIESC Journal(化工学报), 2013, 64(7): 2480-2487
[17]	Xie Shuibo(谢水波), Duan Yi(段毅), Liu Yingjiu(刘迎九), Wang Jinsong(王劲松), Liu Jinxiang(刘金香). Characteristics and mechanism of uranium (Ⅵ) adsorption on glutaraldehyde crosslinked humic acid-immobilized sodium alginate porous membrane [J]. CIESC Journal(化工学报), 2013, 64(7): 2488-2496
[18]	Yao Chao (姚超), Qin Zeyong (秦泽勇), Wu Fengqin (吴凤芹), Li Jinchun(李锦春), Wang Maohua(王茂华), Wei Kenian (魏科年). Kinetic and thermodynamic characteristics of direct fast bordeaux adsorption on activated carbon from silicon-freed rice hull [J].CIESC Journal(化工学报), 2011,62(4) : 977-985
[19]	Wang Xuejiang(王学江), Zhang Quanxing(张全兴), Zhao Jianfu(赵建夫), Xia Siqing(夏四清), Chen Ling(陈玲). Adsorption of phenolic acids on a new type of amino modified polystyrene [J]. Acta Polymerica Sinica (高分子学报), 2005(1): 93-97
[20]	Chen J J, Ahmad A L, Ooi B S. Poly(N-isopropylacrylamide-co-acrylic acid) hydrogels for copper ion adsorption: equilibrium isotherms, kinetic and thermodynamic studies [J]. Journal of Environmental Chemical Engineering, 2013, 1(3): 339-348

阴离子β-环糊精/Fe₃O₄磁性微球对Cu²⁺的吸附

Adsorption of Cu²⁺ by anionic β-cyclodextrin/Fe₃O₄ magnetic microspheres

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