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磁性纳米Fe_3O_4@TiO_2颗粒的制备及在污水治理中的应用 被引量:2

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摘要 以粒径约为15nm的Fe3O4纳米粒子为内核,采用静电作用制备Fe3O4@TiO2核壳结构,核的厚度大约10nm。通过氮气保护450℃高温煅烧的方法,成功制备锐钛矿性Fe3O4@TiO2核壳纳米粒子。最终得到的产物粒径分布均匀,具有良好的分散性。结果表明,以这种磁性纳米核壳微粒作为光催化剂,对降解污水中4-硝基苯酚与纯TiO2相比有明显的提高,90分钟内的降解率可达到98.6%。而且重复六次实验后,其催化效率仍能达到86.3%。
出处 《巢湖学院学报》 2013年第3期78-81,共4页 Journal of Chaohu University
基金 巢湖学院科学研究项目(项目编号:xly-201105) 巢湖学院科研机构专项基金项目(项目编号:xly-201218)
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