聚丙烯酸-羧甲基壳聚糖水凝胶对皮革废水中Cr(Ⅲ)吸附研究
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摘要
本研究以具有吸附能力的羧甲基壳聚糖(CMCS)和聚丙烯酸(PAA)为亲水性链,以Al~(3+)为物理交联中心,采用一锅法制备了对Cr(Ⅲ)具有良好吸附性能的水凝胶。此水凝胶为可逆的物理交联结构,具有很好的溶胀能力,最大能达4814%的溶胀率。这种能力可以充分暴露吸附活性位置并加速铬离子在水凝胶中的扩散速度,从而增强其对Cr(Ⅲ)的吸附能力,在特定条件下,此水凝胶的吸附容量最高能达到80.3 mg/g。此研究为皮革工业处理含铬污水提供了新的思路。
In this work, hydrogel for Cr( Ⅲ) adsorption has been prepared in a simple one-pot method using carboxymethyl chitosan(CMCS) and polyacrylic acid(PAA) as hydrophilic chains crosslinked by Al~(3+). The swelling rate of such hydrogel have achieved 4814%. These characteristics can facilitate the exposure active site and increase the diffusion rate of chromium ions and make the hydrogel show high adsorbability to chromium ion. The adsorption capacity of our hydrogel achieved 80.3 mg/g in a special condition. This strategy opens a new avenue to dispose chrome wastewater from tanneries.
In this work, hydrogel for Cr( Ⅲ) adsorption has been prepared in a simple one-pot method using carboxymethyl chitosan(CMCS) and polyacrylic acid(PAA) as hydrophilic chains crosslinked by Al~(3+). The swelling rate of such hydrogel have achieved 4814%. These characteristics can facilitate the exposure active site and increase the diffusion rate of chromium ions and make the hydrogel show high adsorbability to chromium ion. The adsorption capacity of our hydrogel achieved 80.3 mg/g in a special condition. This strategy opens a new avenue to dispose chrome wastewater from tanneries.
引文
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[24]Su S,Chen R,Liu Q,et al.High efficiency extraction of U(VI)from seawater by incorporation of polyethyleneimine,polyacrylic acid hydrogel and Luffa cylindrical fibers[J].Chem Eng J,2018,345(March):526-535.
[25]Qin Menga,Bin Peng,CS.Synthesis of F127/PAA hydrogels for removal of heavy metal ions from organic wastewater[J].Colloids Surfaces B Biointerfaces,2018,167,176-182.
[26]孙自淑,张凯纪辉.N-羧甲基壳聚糖的制备及其对铬(Ⅵ)离子吸附性能探讨[J].广州化工,2017:4-7.
[27]李子航,任达荣,郑梓浩.聚丙烯酸树脂的制备及其对废水中二价铅离子的吸附性能研究[J].广东化工,2018,12.
[28]Kalliola S,Repo E,Srivastava V,et al.Carboxymethyl Chitosan and Its Hydrophobically Modified Derivative as pH-Switchable Emulsifiers[J].Langmuir,2018,34:2800-2806.
[29]Zhu A,Chan-Park MB,Dai S,et al.The aggregation behavior of O-carboxymethylchitosan in dilute aqueous solution[J].Colloids Surfaces B Biointerfaces,2005,43:143-149.
[2]Guan X,Chang J,Xu Z,et al.Remediation of chromium(III)-contaminated tannery effluents by using gallic acid-conjugated magnetite nanoparticles[J].RSC Adv,2016,6(35):29054-29063.
[3]柴晓苇,高明明,王亚楠,等.制革湿整理工段废水含铬量及来源分析[J].皮革科学与工程,2013,23(6):40-42.
[4]Farenzena M,Ferreira LDS,Trierweiler JO,et al.Tanneries:From waste to sustainability[J].Brazilian Arch Biol Technol,2005,48(SPEC.ISS.):281-289.
[5]牟俊华,李彦春,祝德义.皮革废水中三价铬吸附菌种的筛选及选育[J].中国皮革,2006,35(3):34-37.
[6]Yoshinaga M,Ninomiya H,Al Hossain,et al.A comprehensive study including monitoring,assessment of health effects and development of a remediation method for chromium pollution[J].Chemosphere,2018,201,667-675.
[7]Kota觤J,Stasicka Z.Chromium occurrence in the environment and methods of its speciation[J].Environ Pollut,2000,107(3):263-283.
[8]刘卫国,张新申,刘明华.制革工业中铬污染及防治[J].皮革科学与工程,2001,11(3):64-68.
[9]Krishnani KK,SA.(2006)Heavy metals remediation of water using plants and lignocellulosic agrowastes[J].Rev Environ Contam.T,2006,118:59-84.
[10]王新娟.制革废水中铬(Ⅲ)的降低与铬的回收[J].应用化工,2001,30(6):41-43.
[11]Atikarnsakul U,Varanusupakul P,Alahmad W.Isolation of Chromium(VI)from Aqueous Solution by Electromembrane Extraction[J].Anal Lett,2018,51(7):983-997.
[12]俞从正,马兴元,王俊君.内电解处理废水及在制革中的应用前景[J].皮革科学与工程,2008,18(2):34-38.
[13]Ivette G.Sandoval-Olveraa,Pilar González-Mu觡oza,Laura Palaciob,et al.Ultrafiltration membranes modified by PSS deposition and plasma treatment for Cr(VI)removal[J].Sep Purif Technol,2019,210,371-381.
[14]Lee Kuen Yong,D J M.Hydrogels for tissue engineering[J].Chem Rev,2001,101(7):1869-79.
[15]Van Tran V,Park D,Lee YC.Hydrogel applications for adsorption of contaminants in water and wastewater treatment[J].Environ Sci Pollut Res,2018,25(25):24569-24599.
[16]Shah L A,Khan M,Javed R,et al.Superabsorbent polymer hydrogels with good thermal and mechanical properties for removal of selected heavy metal ions[J].J Clean Prod,2018,201,78-87.
[17]Tang CY,Yu P,Tang LS,et al.Tannic acid functionalized graphene hydrogel for organic dye ad-(sorption[J].Ecotoxicol Environ Saf,2018,165(August):299-306.
[18]Ma J,Luo J,Liu Y,et al.Pb(ii),Cu(ii)and Cd(ii)removal using a humic substance-based double network hydrogel in individual and multicomponent systems[J].J Mater Chem A,2018,6(41):20110-20120.
[19]Appel EA,Del Barrio J,Loh XJ,et al.Supramolecular polymeric hydrogels[J].Chem Soc Rev,2012,41(18):6195-6214.
[20]Anitha A,Divya Rani V V,Krishna R,et al.Synthesis,characterization,cytotoxicity and antibacterial studies of chitosan,O-carboxymethyl and N,O-carboxymethyl chitosan nanoparticles[J].Carbohydr Polym,2009,78(4):672-677.
[21]Zhao D,Huang J,Hu S,et al.Biochemical activities of N,O-carboxymethyl chitosan from squid cartilage[J].Carbohydr Polym,2011,85(4):832-837.
[22]Dobetti L,Delben F.Binding of metal cations by N-carboxymethyl chitosans in water[J].Carbohydr Polym,1992,18(4):273-282.
[23]Wahid F,Zhou YN,Wang HS,et al.Injectable self-healing carboxymethyl chitosan-zinc supramolecular hydrogels and their antibacterial activity[J].Int J Biol Macromol,2018,114:1233-1239.
[24]Su S,Chen R,Liu Q,et al.High efficiency extraction of U(VI)from seawater by incorporation of polyethyleneimine,polyacrylic acid hydrogel and Luffa cylindrical fibers[J].Chem Eng J,2018,345(March):526-535.
[25]Qin Menga,Bin Peng,CS.Synthesis of F127/PAA hydrogels for removal of heavy metal ions from organic wastewater[J].Colloids Surfaces B Biointerfaces,2018,167,176-182.
[26]孙自淑,张凯纪辉.N-羧甲基壳聚糖的制备及其对铬(Ⅵ)离子吸附性能探讨[J].广州化工,2017:4-7.
[27]李子航,任达荣,郑梓浩.聚丙烯酸树脂的制备及其对废水中二价铅离子的吸附性能研究[J].广东化工,2018,12.
[28]Kalliola S,Repo E,Srivastava V,et al.Carboxymethyl Chitosan and Its Hydrophobically Modified Derivative as pH-Switchable Emulsifiers[J].Langmuir,2018,34:2800-2806.
[29]Zhu A,Chan-Park MB,Dai S,et al.The aggregation behavior of O-carboxymethylchitosan in dilute aqueous solution[J].Colloids Surfaces B Biointerfaces,2005,43:143-149.