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| 磁性Fe3O4/石墨烯Photo-Fenton催化剂的制备及其催化活性 | |
| 引用本文： | 何光裕,张 艳,钱茂公,陈海群,汪 信. 磁性Fe3O4/石墨烯Photo-Fenton催化剂的制备及其催化活性[J]. 无机化学学报, 2012, 28(11): 2306-2312 |
| 作者姓名： | 何光裕 张 艳 钱茂公 陈海群 汪 信 |
| 作者单位： | 1. 常州大学江苏省精细化工重点实验室,常州 213164;南京理工大学教育部软化学与功能材料重点实验室,南京 210094 2. 常州大学江苏省精细化工重点实验室,常州,213164 3. 南京理工大学教育部软化学与功能材料重点实验室,南京,210094 |
| 基金项目： | 国家自然科学基金，江苏省科技厅前瞻性计划，常州市国际科技合作计划 |
| 摘 要： | 采用共沉淀法制备磁性Fe3O4/GE(石墨烯)催化剂,实现Fe3O4纳米颗粒生长和氧化石墨烯还原同步进行,采用FTIR、XRD、TEM及低温氮吸附-脱附等对Fe3O4/GE纳米催化剂的物相、颗粒粒径及比表面积进行了表征。在H2O2存在条件下,以亚甲基蓝为目标降解物,考察了在模拟太阳光下Fe3O4/GE的催化活性,当氧化石墨烯与Fe3O4的质量比为1∶10时,经过2 h催化反应,在pH=6条件下,对亚甲基蓝的降解率达到98.7%,经过10次循环使用后对染料溶液的降解率仍保持在95.7%以上,明显优于纯的Fe3O4。 |
| 关 键 词： | 纳米Fe3O4/GE 磁分离 Photo-Fenton反应 |
Preparation and Catalytic Properties of Fe3O4/Graphene Magnetically Separable Photo-Fenton Catalyst |
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| HE Guang-Yu,ZHANG Yan,QIAN Mao-Gong,CHEN Hai-Qun and WANG Xin. Preparation and Catalytic Properties of Fe3O4/Graphene Magnetically Separable Photo-Fenton Catalyst[J]. Chinese Journal of Inorganic Chemistry, 2012, 28(11): 2306-2312 | |
| Authors: | HE Guang-Yu ZHANG Yan QIAN Mao-Gong CHEN Hai-Qun WANG Xin |
| Affiliation: | Key Laboratory of Fine Chemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China; Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, Nanjing University of Science and Technology, Nanjing 210094, China;Key Laboratory of Fine Chemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China;Key Laboratory of Fine Chemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China;Key Laboratory of Fine Chemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, China;Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education, Nanjing University of Science and Technology, Nanjing 210094, China |
| Abstract: | A magnetically separable Fe3O4/Graphene(GE) catalyst was prepared by a facile co-precipitation method. The method features the reduction of graphene oxide and formation of Fe3O4 nanoparticles in one step. Fe3O4/Graphene catalyst was characterized in terms of particle size, crystal structure and surface area by TEM, FTIR, XRD and low temperature nitrogen adsorption-desorption. In the presence of H2O2, the catalytic activities were evaluated by degradation of Methylene blue aqueous solution under simulated sunlight irradiation. The results indicate that catalyst with graphene oxide/Fe3O4 mass ratio of 1:10 shows the highest degradation rate of 98.7% at pH value of 6 in 2 h. The catalyst can be easily separated by an external magnetic field. A degradation rate of 95.7% can be maintained after 10 cycles. |
| Keywords: | nano Fe3O4/GE magnetically separable photo-fenton reaction |
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