Core double-shell MnFe2O4@rGO@TiO2 superparamagnetic photocatalyst for wastewater treatment under solar light

被引：55
作者：
Abdel-Wahed, Mahmoud S. [1 ]
El-Kalliny, Amer S. [1 ]
Badawy, Mohamed I. [1 ]
Attia, Mohamed S. [2 ]
Gad-Allah, Tarek A. [1 ,3 ]
机构：
[1] Natl Res Ctr, Water Pollut Res Dept, 33 El Buhouth St, Giza 12622, Egypt
[2] Ain Shams Univ, Fac Sci, Chem Dept, Cairo 11566, Egypt
[3] Southwest Petr Univ, Sch Mat Sci & Engn, Ctr New Energy Mat & Technol, Xindu Rd 8, Chengdu 610500, Sichuan, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2020年 / 382卷
关键词：
Photocatalysis; Paramagnetic material; Core double-shell; Wastewater treatment; Solar light; REDUCED GRAPHENE OXIDE; NANOCOMPOSITE; DEGRADATION; FABRICATION; NANOPARTICLES; NANOFIBERS; REDUCTION; COMPOSITE;
D O I：
10.1016/j.cej.2019.122936
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Core double-shell MnFe2O4@reduced graphene oxide (rGO)@TiO2 magnetic photocatalyst was synthesized at different calcination temperatures using different initial amounts of graphene oxide. The prepared materials were fully characterized. The performance of the prepared photocatalysts at different preparation conditions was evaluated towards the degradation of ofloxacin under solar light. The results revealed that MnFe2O4@rGO@TiO2 of 50 mg rGO (calcined at 400 degrees C for 2 h) has the best photodegradation rate at natural pH 5.4 of water polluted with ofloxacin. Moreover, MnFe2O4@(50 mg)rGO@TiO2 has a superparamagnetic character with high saturation magnetism (33 emu/g), which makes its recovery from the treated water effluent by magnet is more applicable. The study showed also the availability of reusing the prepared core double-shell photocatalyst, indicating that this photocatalyst is promising for the wastewater treatment process.
引用
收藏
页数：9
相关论文
共 39 条
[1]   Novel magnetically separable Ag3PO4/MnFe2O4 nanocomposite and its high photocatalytic degradation performance for organic dyes under solar-light irradiation [J].
Abroshan, Eslam ;
Farhadi, Saeed ;
Zabardasti, Abedin .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2018, 178 :154-163
[2]   Preparation of highly conductive, transparent, and flexible graphene/silver nanowires substrates using non-thermal laser photoreduction [J].
Anis, Badawi ;
Mostafa, A. M. ;
El Sayed, Z. A. ;
Khalil, A. S. G. ;
Abouelsayed, A. .
OPTICS AND LASER TECHNOLOGY, 2018, 103 :367-372
[3]   Glycine functionalized magnetic nanoparticle entrapped calcium alginate beads: A promising adsorbent for removal of Cu(II) ions [J].
Asthana, Anupama ;
Verma, Renu ;
Singh, Ajaya Kumar ;
Susan, Md. Abu Bin Hasan .
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2016, 4 (02) :1985-1995
[4]   Fabrication of Ag/TiO2 Photocatalyst for the Treatment of Simulated Hospital Wastewater Under Sunlight [J].
Badawy, M. I. ;
Souaya, Eglal M. R. ;
Gad-Allah, Tarek A. ;
Abdel-Wahed, Mahmoud S. ;
Ulbricht, Mathias .
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY, 2014, 33 (03) :886-894
[5]   One-pot solvothermal preparation of magnetic reduced graphene oxide-ferrite hybrids for organic dye removal [J].
Bai, Song ;
Shen, Xiaoping ;
Zhong, Xin ;
Liu, Yang ;
Zhu, Guoxing ;
Xu, Xiang ;
Chen, Kangmin .
CARBON, 2012, 50 (06) :2337-2346
[6]   Characterizations of TiO2@Mn-Zn ferrite powders for magnetic photocatalyst prepared from used alkaline batteries and waste steel pickling liquor [J].
Chen, Ching-Cheng ;
Butler, Erick ;
Al Ahmad, Mohammed ;
Hung, Yung-Tse ;
Fu, Yen-Pei .
MATERIALS RESEARCH BULLETIN, 2014, 50 :178-182
[7]   Preparation and characterization of the magnetic Fe3O4@TiO2 nanocomposite with the in-situ synthesis coating method [J].
Chen, Xiao-Quan ;
Zhang, Hong-Xin ;
Shen, Wen-Hao .
MATERIALS CHEMISTRY AND PHYSICS, 2018, 216 :496-501
[8]   Magnetic Nanofibers: Unique Properties, Fabrication Techniques, and Emerging Applications [J].
Chen, Xiaoqing ;
Cheng, Lisheng ;
Li, Haoyi ;
Barhoum, Ahmed ;
Zhang, Youchen ;
He, Xuetao ;
Yang, Weinmin ;
Bubakir, Mahmoud M. ;
Chen, Hongbo .
CHEMISTRYSELECT, 2018, 3 (31) :9127-9143
[9]   Photodegradation of 2,4-dichlorophenoxyacetic acid over TiO2(B)/anatase nanobelts and Au-TiO2(B)/anatase nanobelts [J].
Chenchana, A. ;
Nemamcha, A. ;
Moumeni, H. ;
Dona Rodriguez, J. M. ;
Arana, J. ;
Navio, J. A. ;
Gonzalez Diaz, O. ;
Pulido Melian, E. .
APPLIED SURFACE SCIENCE, 2019, 467 :1076-1087
[10]  
Dai Z., 2019, MAT LETT
1234