利用高温微波水热法合成离子液体磁性类沸石有机骨架纳米材料(MIL@ZIF-8),采用透射电镜(TEM)、傅里叶红外光谱(FT-IR)、比表面测试(BET)和孔径分析(BJH)对MIL@ZIF-8进行表征分析,并用其吸附环境水样中的4种苯并三唑类化合物(UV-320、UV-327、UV-328、UV-329)紫外线吸收剂,考察不同参数得出最佳吸附条件:材料投加量20mg、吸附pH=6、吸附温度为室温,且采用搅拌的方式。经一、二级动力学和热力学拟合分析发现,MIL@ZIF-8吸附苯并三唑类化合物的过程以化学吸附为主,符合Freundlich等温吸附模型,动力学模型过程更符合准二级动力学模型。
Ionic liquid magnetic zeolitic imidazolate organic framework nanomaterials (MIL@ZIF-8) were synthesized by high temperature microwave hydrothermal method.MIL@ZIF-8 was characterized by TEM,FT-IR,BET and BJH,and used to adsorb four kinds of the benzotriazole ultraviolet absorbers (UV-320,UV-327,UV-328,UV-329) in environmental water samples.Different parameters were examined to determine the best adsorption conditions:material dosage of 20mg,adsorption pH=6,room temperature,and stirring.The first and second-order kinetics and thermodynamics fitting analysis revealed that the adsorption process of MIL@ZIF-8 adsorption for BTs was mainly chemical adsorption,which conformed to the Freundlich isotherm adsorption model,and the kinetic model process was more in line with the quasi-secondary kinetic model.
[1] Zuniga-Benitez H,Soltan J,Penuela G.Ultrasonic degradation of 1h-benzotriazole in water[J].Water SciTechnol,2014,70:152-159.
[2] Song S,Ruan T,Wang T,et al.Occurrence and removal of benzotriazole ultraviolet stabilizers in a wastewater treatment plant in China[J].Environ Sci:Processes Impacts,2014,16:1076-1082.
[3] 周国萍,康成,王士凡,等.纳米复合高分子重金属离子吸附材料的研究进展[J].水处理技术,2021,47(8):26-31.
[4] 李国光,田瑞华,韩文彪,康欢欢,郝荣.沸石吸附城市有机废弃物厌氧发酵沼液氨氮研究[J].水处理技术,2019,45(12):42-45,52.
[5] Weiss S,Reemtsma T.Determination of benzotriazole corrosion inhibitors from aqueous environmental samples by liquid chromatography-electrospray ionization-tandem mass spectrometry[J].Anal Chem,2005,77:7415-7420.
[6] Asimakopoulos A G,Bletsou A A,Wu Q,et al.Determination of benzotriazolesand benzothiazoles in human urine by liquid chromatography-tandem mass spectrometry[J].Anal Chem,2013,85:441-448.
[7] Giger W,Schaffner C,Kohler H P E.Benzotriazole and tolyltriazole as aquatic contaminants.1.input and occurrence in rivers and lakes[J].Environ SciTechnol,2006,40:7186-7192.
[8] Herzog B,Lemmer H,Huber B,et al.Xenobiotic benzotriazoles-biodegradation under meso- and oligotrophic conditions as well as denitrifying,sulfate-reducing,and anaerobic conditions[J].Environ SciPollut Res,2014,21:2795-2804.
[9] Mawhinney D B,Vanderford B J,Snyder S A.Transformation of 1H-benzotriazole by ozone in aqueous solution[J].Environ SciTechnol,2012,46:7102-7111.
[10] Hart D S,Davis L C,Erickson L E,et al.Sorption and partitioning parameters of benzotriazole compounds[J].Microchem J,2004,77:9-17.
[11] Xu B,Wu F,Zhao X,et al.Benzotriazole removal from water by Zn-Al-O binary metal oxide adsorbent:behavior,kinetics and mechanism[J].J Hazard Mater,2010,184:147-155.
[12] 李会东,崔凤娇,陈晨,等.ZIF-8及其复合材料吸附水中抗生素研究进展[J].水处理技术,2021,47(11):8-12.
[13] Chang N,Gu Z Y,Yan X P.Zeolitic imidazolate framework-8 nanocrystal coated capillary for molecular sieving of branched alkanes from linear alkanes along with high-resolution chromatographic separation of linear alkanes[J].J Am Chem Soc,2010,132:13645-13647.
[14] Roy A,Adhikari B,Majumder S B.Equilibrium,kinetic,and thermodynamic studies of azo dye adsorption from aqueous solution by chemically modified lignocellulosic jute fiber[J].Industrial & Engineering Chemistry Research,2013,52(19):6502-6512.
[15] Xu B,Wu F,Zhao X,et al.Benzotriazole removal from Water by Zn-Al-O binary metal oxide adsorbent:behavior,kinetics and mechanism[J].J Hazard Mater,2010,184:147-155.
[16] Lashaki M J,Fayaz M,Wang H,et al.Effect of adsorption and regeneration temperatureon irreversible adsorption of organic vapors on beaded activated carbon[J].Environ SciTechnol,2012,46:4083-4090.
[17] Huo S H,Yan X P.Metal-organic framework MIL-100(Fe) for the adsorption of malachite green from aqueous solution[J].J Mater Chem,2012,22:7449-7455.
[18] Han X Y,Zhang L,Chen T M,et al.Research on treatment of benzothiazole in wastewater by Fenton process[J].Modern Chemical Industy,2017,37:117-120.
[19] 王宁伟.类沸石金属有机骨架材料的优化合成及其吸附、分离性能研究[D].金华:浙江师范大学,2013.
[20] Qi X,Li L,Tan T,et al.Adsorption of 1-butyl-3-methylimidazolium chloride ionic liquidby functional carbon microspheres from hydrothermal carbonization of cellulose[J].Environ SciTechnol,2013,47:2792-2798.
基金资助
江苏省研究生科研创新计划(KYCX18-2561)
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