[1]徐鹏,梁旭光,曹小勇,等.Fe3O4@SiO2@PAA多层核-壳结构复合微球的制备及吸附染料研究[J].林业工程学报,2018,3(03):52-56.[doi:10.13360/j.Issn.2096-1359.2018.03.009]
 XU Peng,LIANG Xuguang,CAO Xiaoyong,et al.Preparation of Fe3O4@SiO2@PAA multilayer core-shell structural composite microspheres and its dye adsorption performance[J].Journal of Forestry Engineering,2018,3(03):52-56.[doi:10.13360/j.Issn.2096-1359.2018.03.009]
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Fe3O4@SiO2@PAA多层核-壳结构复合微球的制备及吸附染料研究()
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《林业工程学报》[ISSN:1001-8081/CN:32-1160/S]

卷:
3
期数:
2018年03期
页码:
52-56
栏目:
林产化学加工
出版日期:
2018-05-15

文章信息/Info

Title:
Preparation of Fe3O4@SiO2@PAA multilayer core-shell structural composite microspheres and its dye adsorption performance
文章编号:
2096-1359(2018)03-0052-05
作者:
徐鹏12梁旭光1曹小勇3刘松灿1王利莹4高勤卫1*
1.南京林业大学化学工程学院,南京 210037;
2.江苏省农林生物质化学与利用国家重点实验室培育点, 南京 210037;
3.南京市产品质量监督检验院,南京 210028;
4.南京林业大学林学院,南京 210037
Author(s):
XU Peng12 LIANG Xuguang1 CAO Xiaoyong3 LIU Songcan1 WANG Liying4 GAO Qinwei1*
1.College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China;
2.Jiangsu Key Lab.for the Chemistry & Utilization of Agricultural and Forest Biomass, Nanjing 210037, China;
3.Nanjing Institute of Supervision & Testing on Product Quality, Nanjing 210028, China;
4.College of Forestry, Nanjing Forestry University, Nanjing 210037, China
关键词:
多层核壳结构 复合微球 染料 吸附性能
Keywords:
multilayer core-shell structural composite microspheres dye adsorptive property
分类号:
TQ352
DOI:
10.13360/j.Issn.2096-1359.2018.03.009
文献标志码:
A
摘要:
以溶剂热法合成Fe3O4磁性微球,并以正硅酸四乙酯(TEOS)为硅源,通过溶胶-凝胶法在Fe3O4磁性微球表面包裹SiO2壳层,利用3-(异丁烯酰氧)三甲氧基硅烷(APTES)对SiO2壳层进行修饰后,通过交联沉淀聚合法在SiO2壳层外部合成聚丙烯酸(PAA)层,形成Fe3O4@SiO2@PAA多层核-壳结构复合微球。利用透射电子显微镜(TEM)、红外光谱(FT-IR)和热重分析仪(TGA)对合成材料的形貌和结构进行表征,并就多层结构复合微球对染料的吸附性能进行研究。结果显示:制备的Fe3O4磁性微球具有良好的水分散性,其表面可分步包裹SiO2和PAA壳层,形成Fe3O4@SiO2@PAA多层核-壳结构复合微球,该复合微球对罗丹明6G和亚甲基蓝的吸附量分别达到1.04和1.14 mg/g(吸附质量浓度为2.4 mg/L,吸附时间为10 min),表现出良好的染料吸附性能。
Abstract:
In the present study, Fe3O4 magnetic nanoparticles were fabricated by solvothermal method. Tetraethyl orthosilicate(TEOS)was used as precursor to fabricate a layer of SiO2 on the surface of Fe3O4 nanoparticles. 3-(methacryloyl oxygen)trimethoxy silane(APTES)was used as silane coupling agent to modify the surface of SiO2@Fe3O4 with double carbon bonds, then Fe3O4/silicon dioxide/poly(acrylate acid)(Fe3O4@SiO2@PAA)multi-layer core-shell structural composite microspheres were prepared by cross-linking precipitation polymerization of acrylate acid and divinyl benzene monomers without the use of surfactants and stabilizers. The as-synthesized particles have been characterized by means of transmission electron microscopy(TEM), Fourier transform infrared spectroscopy(FT-IR)and thermogravimetric analysis(TGA). The size of the prepared Fe3O4 nanoparticles was about 150-250 nm. The Fe3O4 nanoparticles exhibited good water-solubility and were successfully encapsulated by SiO2 shell. The PAA was successfully grafted onto the surface of SiO2 to form Fe3O4@SiO2@PAA multilayer core-shell composite microspheres. The results of Fe3O4@SiO2@PAA microspheres showed high performance in the adsorption of Rhodamine 6G and methylene blue. The 10-minute adsorption reached 1.04 mg/g and 1.14 mg/g.

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备注/Memo

备注/Memo:
收稿日期:2017-06-07 修回日期:2017-11-30
基金项目:江苏省自然科学基金(青年基金)(BK20130969); 江苏省生物质绿色燃料与化学品重点实验室开放课题(JSBGFC14015)。
作者简介:徐鹏,男,副教授,博士,研究方向为生物质资源催化转化。通信作者:高勤卫,男,教授。E-mail: xupeng5993@njfu.edu.cn
更新日期/Last Update: 2018-05-15