Fe_3O_4@SiO_2微球作为非均相Fenton催化剂结合超声降解亚甲基蓝模拟废水
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摘要
采用水热法制备Fe_3O_4纳米微球,用Stber工艺法表面修饰Fe_3O_4制备Fe_3O_4@SiO_2磁性微球,将其作为非均相Fenton催化剂,并结合超声降解亚甲基蓝(MB)模拟印染废水。通过单因素分析实验,考察了初始pH值、H_2O_2投加量、Fe_3O_4投加量等条件对非均相Fenton反应的影响。结果表明,pH值为3,Fe_3O_4@SiO_2投加量为3. 00 g/L,超声10 min,H2O2投加量为2. 00 m L/L,反应时间1 h,反应温度30℃,此时MB的去除率可达到99. 9%。
Stber method was applied to prepare Fe_3O_4,then Fe_3O_4@ SiO_2 magnetic microspheres were prepared after modifying its surface and combined with ultrasonic it was used as heterogeneous Fenton catalyst to degrade Methylene blue( MB) simulated dye wastewater. In this experiment,the effects of initial pH value,H_2O_2 dosage and Fe_3O_4 dosage on the heterogeneous Fenton reaction were investigated by single factor analysis. It was shown that the removal efficiency of MB can reach 99. 9% in the conditions that,the p H value was 3,the dosage of Fe_3O_4@ SiO_2 was 3. 00g/L,the ultrasonic was 10 min,the H_2O_2 was 2. 00 m L/L,the reaction time was 1 h and the reaction temperature was 30 ℃.
Stber method was applied to prepare Fe_3O_4,then Fe_3O_4@ SiO_2 magnetic microspheres were prepared after modifying its surface and combined with ultrasonic it was used as heterogeneous Fenton catalyst to degrade Methylene blue( MB) simulated dye wastewater. In this experiment,the effects of initial pH value,H_2O_2 dosage and Fe_3O_4 dosage on the heterogeneous Fenton reaction were investigated by single factor analysis. It was shown that the removal efficiency of MB can reach 99. 9% in the conditions that,the p H value was 3,the dosage of Fe_3O_4@ SiO_2 was 3. 00g/L,the ultrasonic was 10 min,the H_2O_2 was 2. 00 m L/L,the reaction time was 1 h and the reaction temperature was 30 ℃.
引文
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[22]WU X L,SH Y P,ZHONG SH X,et al.Facile synthesis of Fe3O4-graphene@mesoporous Si O2nanocomposites for efficient removal of methylene blue[J].Applied Surface Science,2016,378:80-86.
[23]柯磊,姜继森,马学鸣.磁性Si O2/Fe3O4复合粒子的制备研究[J].化工新型材料,2014(3):33-35.
[2]石泰山.印染废水处理及其资源化利用[J].印染,2013,39(23):49-51.
[3]石大安,黄荣荣,吴玉宝.印染前处理废水的MBR处理[J].印染,2008,34(8):33-36.
[4]马春燕,谭书琼,奚旦立.印染废水处理原则及方法[J].印染,2010,36(16):30-32.
[5]陈英文,宋天顺,沈树宝.混凝-厌氧水解-好氧组合工艺处理印染废水的研究[J].工业水处理,2005,25(5):22-24.
[6]ZHANG C L,HE Y,LI F,et al.H-BN decorated with Fe3O4nanoparticles through mussel-inspired chemistry of dopamine for reinforcing anticorrosion performance of epoxy coatings[J].Journal of Alloys and Compounds,2016,685:743-751.
[7]WU X L,SHI Y P,ZHONG SH X,et al.Facile synthesis of Fe3O4-graphene@mesoporous Si O2nanocomposites for efficient removal of methylene blue[J].Applied Surface Science,2016,378:80-86.
[8]Maryam Fayazi,Mohammad Ali Taher,Daryoush Afzali,et al.Enhanced Fenton-like degradation of methylene blue by magnetically activated carbon/hydrogen peroxide with hydroxylamine as Fenton enhancer[J].Journal of Molecular Liquids,2016,216:781-787.
[9]赵一扬.Au/C催化剂用于非均相Fenton反应催化降解水中有机物[D].上海:华东理工大学,2011.
[10]赵银秋.非均相Fenton催化剂的制备、表征及性能研究[D].齐齐哈尔:齐齐哈尔大学,2012:8-10.
[11]詹凤,范君伟,李成魁,等.水热法制备纳米Fe3O4磁性颗粒[J].金属功能材料,2012(1):20-25.
[12]全桂英,吴明在.形貌可控的Fe3O4纳米粒子的水热合成及磁性能研究[J].低温物理学报,2011(4):277-281.
[13]李享,杨海滨.纳米Fe3O4磁性颗粒的制备进展[J].材料导报,2006(S1):145-148.
[14]何运兵,邱祖民,佟珂.制备纳米Fe3O4的研究进展[J].化工科技,2004(6):52-57.
[15]马应霞,雷文娟,喇培清.Fe3O4纳米材料制备方法研究进展[J].化工新型材料,2015(2):24-26.
[16]ZHANG CH L,HE Y,LI F,et al.H-BN decorated with Fe3O4nanoparticles through mussel-inspired chemistry of dopamine for reinforcing anticorrosion performance of epoxy coatings[J].Journal of Alloys and Compounds,2016,685:743-751.
[17]Ozkan Acisli,Alireza Khataee,Semra Karaca,et al.Combination of ultrasonic and Fenton processes in the presence of magnetite nanostructures prepared by high energy planetary ball mill[J].Ultrasonics Sonochemistry,2017,34:754-762.
[18]殷井云,罗平,梁柱,等.非均相Fenton催化剂Fe3O4降解亚甲基蓝[J].净水技术,2017(10):18-22.
[19]孟超,黄丹丹,郭立玲,等.Fe3O4磁性纳米粒子的制备[J].辽宁化工,2015(7):773-775.
[20]周洁,马明,张宇,等.不同尺寸Fe3O4磁性颗粒的制备和表征[J].东南大学学报(自然科学版),2005(4):615-618.
[21]L U Khan,D Muraca,H F Brito,et al.Optical and magnetic nanocomposites containing Fe3O4@Si O2grafted with Eu3+and Tb3+complexes[J].Journal of Alloys and Compounds,2016,686:453-466.
[22]WU X L,SH Y P,ZHONG SH X,et al.Facile synthesis of Fe3O4-graphene@mesoporous Si O2nanocomposites for efficient removal of methylene blue[J].Applied Surface Science,2016,378:80-86.
[23]柯磊,姜继森,马学鸣.磁性Si O2/Fe3O4复合粒子的制备研究[J].化工新型材料,2014(3):33-35.