| Fe3O4@NiSiO3纳米催化剂制备及催化臭氧化降解对苯二甲酸性能研究 |
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| 引用本文： | 牛建瑞,赵雅晴,贾秀秀,李文亚,刘艳芳,李再兴.Fe3O4@NiSiO3纳米催化剂制备及催化臭氧化降解对苯二甲酸性能研究[J].科学技术与工程,2018,18(27). |
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| 作者姓名： | 牛建瑞 赵雅晴 贾秀秀 李文亚 刘艳芳 李再兴 |
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| 作者单位： | 河北科技大学,河北科技大学,河北科技大学,河北科技大学,河北科技大学,河北科技大学 |
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| 基金项目： | 博士科研启动基金/河北省自然科学基金资助项目 |
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| 摘 要： | 采用水热法和溶胶凝胶法制备Fe3O4@SiO2纳米颗粒,经表面镍刻蚀得到Fe3O4@NiSiO3磁性纳米催化剂。利用XRD、TEM和VSM等手段表征催化剂的晶体和表面结构。构建类均相催化臭氧化体系,考察其催化降解对苯二甲酸性能。结果表明：在臭氧通入量10.52 mg.min-1、催化剂投加量40 mg.L-1和初始溶液pH=9的条件下,催化臭氧化反应20 min时对苯二甲酸降解率为78.13%,TOC去除率27.25%；5次循环实验后,PTA降解率仅下降2.75%。
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| 关 键 词： | Fe[sub_s]3[sub_e]O[sub_s]4[sub_e]@NiSiO[sub_s]3[sub_e] 催化臭氧化 纳米催化剂 对苯二甲酸 性能研究 |
| 收稿时间： | 2018/5/2 0:00:00 |
| 修稿时间： | 2018/7/17 0:00:00 |
Fe3O4 @nisio3 nano-catalyst preparation and catalytic ozonation degradation of terephthalic acid. |
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| niujianrui,and.Fe3O4 @nisio3 nano-catalyst preparation and catalytic ozonation degradation of terephthalic acid.[J].Science Technology and Engineering,2018,18(27). |
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| Authors: | niujianrui and |
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| Institution: | Hebei University of Science and Technology,,,,, |
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| Abstract: | Fe3O4@SiO2 nanoparticles were synthesized by hydrothermal synthesis method and sol gel method, and Fe3O4 @NiSiO3 magnetic nano-catalyst was obtained by the surface nickel etching. The crystal structure and surface structure of the catalyst were characterized by XRD, TEM, BET and VSM. The catalytic degradation of terephthalic acid was investigated. And the results showed that the degradation rate of terephthalic acid was 78.13% and the TOC removal rate was 27.25%, when the ozonation reaction was 1052 mg.min-1 and the catalyst was increased by 40 mg. L-1 and the initial solution pH=9. After 5 cycles, the PTA degradation rate decreased by only 2.75%. |
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| Keywords: | Fe3O4@NiSiO3 Catalytic ozonation Nano-catalyst terephthalic acid Performance study |
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