A new type of porous silica@gold nanocomposites was prepared by wet chemical method and its structure was characterized.The adsorption properties of PCB77 on the nanocomposites were explored.The kinetic data results showed that the fitting coefficients of Freundlich and Langmuir isotherms models were 0.9652 and 0.9764,respectively.The correlation coefficient was 0.951 with quasi-first order adsorption kinetics.The nanocomposites had strong adsorption performance and can effectively adsorb PCB77 in water.
[1] 彭伟,谯华,方振东,等.多氯联苯污染土壤修复技术研究进展[J].化学与生物工程,2014,24(6):9-14.
[2] 司雄元.纳米材料对PCB77的吸附与降解研究[D].合肥:安徽农业大学,2011.
[3] 刘清浩,郭金春,蔡宇廷,等.氨基化SiO2荧光微球的制备及其表征[J].化工进展,2016,35(7):2130-2134.
[4] 严红梅,丁冬梅,汪晶,等.胶态二氧化硅和多孔二氧化硅作为黄芩苷固体分散载体的比较[J].中国中药杂志,2014,13:2484-2488.
[5] 杨超.介孔氧化硅纳米材料对核酸的吸附和释放性能的研究[D].哈尔滨:哈尔滨工业大学,2010.
[6] 薛俊国.金、银与SiO2和α-Fe2O3复合纳米颗粒的制备[D].长春:东北师范大学,2007.
[7] Rao Y Y,Tao Q,An M,et al.Novel and simple route to fabricate 2D ordered gold nanobowl arrays based on 3D colloidal crystals[J].Langmuir,2011,27(21),13308-13313.
[8] Yang S K,Cai W P,Kong L C,et al.Surface nanometer-scale patterning in realizing large-scale ordered arrays of metallic nanoshells with well-defined structures and controllable properties[J].Advanced Functional Materials,2010,20(15):2527-2533.
[9] 毕新慧,储少岗,徐晓白.多氯联苯在土壤中的吸附行为[J].中国环境科学,2001,21(3):284-288.
[10] Khlebtsov B,Khlebtsov N.Enhanced solid-phase immunoassay using gold nanoshells:effect of nanoparticle optical properties[J].Nanotechnology,2008,19(43):435703.
[11] 刘清浩,郭金春,蔡宇廷,等.氨基化SiO2荧光微球的制备及其表征[J].化工进展,2016,35(7):2130-2134.
[12] Rao Y Y,Chen Q F,Dong J,et al.Growth-sensitive 3D ordered gold nanoshells precursor composite arrays as SERS nanoprobes for assessing hydrogen peroxide scavenging activity[J].Analyst,2011,136(4):769-774.
[13] Dong J,Chen Q F,Rong C H,et al.Minimally iinvasive surface-enhanced raman scattering detection with depth profiles based on a surface-enhanced raman scattering-active acupuncture needle[J].Analytical Chemistry,2011,83(16):6191-6195.
[14] Ding S M,Feng X H,Wang Y T,et al.Equilibriumand kinetic analysis of adsorption for dyestuff by cross-linked chitosan porous microbeads[J].Journal of Analytical Science,2005,21(2):127-130.
[15] Trivedi H C,Patel V M,Patel R D.Adsorption of cellulose triacetate oncalcium silicate[J].European Polymer Journal,1973,9(6):525531.
[16] 史蕊,李依丽,尹晶,杨珊珊.玉米秸秆活性炭的制备及其吸附动力学研究[J].环境工程学报,2014,8(8):3428-3432.
[17] 王海鸿,刘应书,李子宜,等.活性炭脱除SO2吸附动力学模型及数值模拟[J].煤炭学报,2015,40(1):203-211.
基金资助
福建省教育厅科技项目(JK2016035,JAT160425);福建省自然科学基金项目(2016J05043);莆田学院科技项目(2018060);莆田学院大学生创新创业计划项目(201711498040)
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