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四氧化三铁-石墨烯复合芬顿催化剂用于染料脱色的研究
引用本文:王瑞珏,刘潇阳,张孝亮,谢静茹,禹宝伟,吴蕊含,李红亮,杨胜韬.四氧化三铁-石墨烯复合芬顿催化剂用于染料脱色的研究[J].西南民族大学学报(自然科学版),2015,41(5):588-592.
作者姓名:王瑞珏  刘潇阳  张孝亮  谢静茹  禹宝伟  吴蕊含  李红亮  杨胜韬
作者单位:西南民族大学 化学与环境保护工程学院,西南民族大学 化学与环境保护工程学院,西南民族大学 化学与环境保护工程学院,西南民族大学 化学与环境保护工程学院,西南民族大学 化学与环境保护工程学院,西南民族大学 化学与环境保护工程学院,西南民族大学 化学与环境保护工程学院,西南民族大学 化学与环境保护工程学院
基金项目:四川省科技支撑计划(No. 2013FZ0060)和四川省教育厅科研项目重点项目(No. 15ZA0392)。
摘    要:芬顿催化是污水处理中最常用的技术之一,但是传统芬顿试剂需要对水体进行酸化并造成大量亚铁离子浪费.本文用水合肼还原法制备了四氧化三铁-石墨烯复合芬顿催化剂(Fe3O4-G),测试其催化脱色甲烯蓝的活性.Fe3O4-G样品用透射电镜、X射线光电子能谱和红外光谱等表征.Fe3O4-G能催化双氧水分解氧化脱色甲烯蓝.Fe3O4-G在pH3.5~9.5范围内均能有效催化脱色甲烯蓝,最佳pH为8.5.Fe3O4-G的催化活性几乎不受溶剂的影响,加入自由基淬灭剂叔丁醇对脱色也没有明显抑制.Fe3O4-G在较高的温度下催化能力更强,增大双氧水用量也能促进脱色反应.

关 键 词:石墨烯    四氧化三铁    芬顿催化剂    水污染    脱色    高级氧化法
收稿时间:2015/3/19 0:00:00
修稿时间:2015/3/19 0:00:00

Fe3O4-graphene composite as Fenton-like catalyst for the decoloration of dyes
Wang,Rui-jue,Liu,Xiao-yang,Zhang,Xiao-liang,Xie,Jing-ru,YU,Bao-wei,WU,Rui-han,Li,Hong-liang and Yang,Sheng-Tao.Fe3O4-graphene composite as Fenton-like catalyst for the decoloration of dyes[J].Journal of Southwest University for Nationalities(Natural Science Edition),2015,41(5):588-592.
Authors:Wang  Rui-jue  Liu  Xiao-yang  Zhang  Xiao-liang  Xie  Jing-ru  YU  Bao-wei  WU  Rui-han  Li  Hong-liang and Yang  Sheng-Tao
Institution:School of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities and School of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities
Abstract:Fenton system is among the most frequently applied water treatment technology, but it has several drawbacks, including the acidic environment and the waste of Fe2 . This study prepared Fe3O4-graphene composite (Fe3O4-G ) by hydrazine hydrate reduction, and measured the Fenton-like catalytic activity in the decoloration of methylene blue. Fe3O4-G was characterized by transmission electron microscopy, X-ray photoelectron spectroscopy and infrared spectrometer. Fe3O4-G could catalyze the decomposition of H2O2 to oxidize MB. Fe3O4-Gcould be used in the pH range of 3.5 to 9.5, which was optimized at 8.5. The catalytic activity was not significantly influenced by the solvent and the radical scavenger tertiary butanol. Higher catalytic activity of Fe3O4-G was observed under higher temperature and the presence of more H2O2. Fenton system is among the most applied water treatment technologies, but Fenton system suffers several drawbacks, including the acidic environment and the waste of Fe2 . In this study, we prepared Fe3O4-graphene composite (Fe3O4-G) by hydrazine hydrate reduction, and measured the Fenton-like catalytic activity in the decoloration of methylene blue. Fe3O4-G was characterized by transmission electron microscopy, X-ray photoelectron spectroscopy and infrared spectrometer. Fe3O4-G could catalyze the decomposition of H2O2 to oxidize MB. Fe3O4-G could be used in the pH range of 3.5~9.5, which was optimized at 8.5. The catalytic activity was not significantly influenced by the solvent and the radical scavenger tertiary butanol. Higher catalytic activity of Fe3O4-G was observed under higher temperature and the presence of more H2O2.
Keywords:graphene  Fe3O4  Fenton catalyst  water pollution  decoloration  advanced oxidation process
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