Preparation and Characterization of Magnetic Porous Carbon Microspheres   for Removal of Methylene Blue by a Heterogeneous Fenton Reaction

doi:10.1021/am500576p

CORC > 北京大学 > 环境科学与工程学院

	Preparation and Characterization of Magnetic Porous Carbon Microspheres for Removal of Methylene Blue by a Heterogeneous Fenton Reaction
	Zhou, Lincheng ; Shao, Yanming ; Liu, Junrui ; Ye, Zhengfang ; Zhang, He ; Ma, Junjun ; Jia, Yan ; Gao, Weijie ; Li, Yanfeng
刊名	acs applied materials interfaces
	2014
关键词	carbon microspheres magnetic porous heterogeneous Fenton reaction degradation methylene blue NARROW SIZE DISTRIBUTION LITHIUM-ION BATTERIES HYDROGEN-PEROXIDE ANODE MATERIAL IRON-OXIDE ORANGE-II AZO-DYE DEGRADATION OXIDATION CATALYST
DOI	10.1021/am500576p
英文摘要	High-specific-surface-area magnetic porous carbon microspheres (MPCMSs) were fabricated by annealing Fe2+-treated porous polystyrene (PS) microspheres, which were prepared using a two-step seed emulsion polymerization process. The resulting porous microspheres were then sulfonated, and Fe2+ was loaded by ion exchange, followed by annealing at 250 degrees C for 1 h under an ambient atmosphere to obtain the PS-250 composite. The MPCMS-500 and MPCMS-800 composites were obtained by annealing PS-250 at 500 and 800 degrees C for 1 h, respectively. The iron oxide in MPCMS-500 mainly existed in the form of Fe3O4, which was concluded by characterization. The MPCMS-500 carbon microspheres were used as catalysts in heterogeneous Fenton reactions to remove methylene blue (MB) from wastewater with the help of H2O2 and NH2OH. The results indicated that this catalytic system has a good performance in terms of removal of MB; it could remove 40 mg L-1 of MB within 40 min. After the reaction, the catalyst was conveniently separated from the media within several seconds using an external magnetic field, and the catalytic activity was still viable even after 10 removal cycles. The good catalytic performance of the composites could be attributed to synergy between the functions of the porous carbon support and the Fe3O4 nanoparticles embedded in the carrier. This work indicates that porous carbon spheres provide good support for the development of a highly efficient heterogeneous Fenton catalyst useful for environmental pollution cleanup.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000336639200037&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; SCI(E); EI; 68; ARTICLE; zhoulc@lzu.edu.cn; 10; 7275-7285; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/214034]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Zhou, Lincheng,Shao, Yanming,Liu, Junrui,et al. Preparation and Characterization of Magnetic Porous Carbon Microspheres for Removal of Methylene Blue by a Heterogeneous Fenton Reaction[J]. acs applied materials interfaces,2014.
APA	Zhou, Lincheng.,Shao, Yanming.,Liu, Junrui.,Ye, Zhengfang.,Zhang, He.,...&Li, Yanfeng.(2014).Preparation and Characterization of Magnetic Porous Carbon Microspheres for Removal of Methylene Blue by a Heterogeneous Fenton Reaction.acs applied materials interfaces.
MLA	Zhou, Lincheng,et al."Preparation and Characterization of Magnetic Porous Carbon Microspheres for Removal of Methylene Blue by a Heterogeneous Fenton Reaction".acs applied materials interfaces (2014).