Green synthesis and characterization of gold nanoparticles embedded into magnetic carbon nanocages and their highly efficient degradation of methylene blue

doi:10.1039/c6ra00537c

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Green synthesis and characterization of gold nanoparticles embedded into magnetic carbon nanocages and their highly efficient degradation of methylene blue
	Zuo, Wei 1; Chen, Gaosong 1; Chen, Fengjuan 1; Li, Siliang 2; Wang, Baodui 1
刊名	RSC ADVANCES
	2016
卷号	6 期号:34 页码:28774-28780
关键词	Aromatic compounds Carbon Catalyst activity Catalyst selectivity Degradation Gold metallography Gold nanoparticles Green Synthesis High resolution transmission electron microscopy Iron oxides Magnetite Metal nanoparticles Mixtures Nanomagnetics Nanospheres Nanostructured materials Particle size Porous materials Precious metals Sodium Borohydride
DOI	10.1039/c6ra00537c
英文摘要	Currently tremendous efforts have been made to fabricate different noble metal nanoparticles (NPs) encapsulated in porous materials. Herein we present a general strategy for the preparation of coupled Fe3O4 and Au NPs into carbon nanospheres by employing diethylenetriamine as the coupling linker. Transmission electron microscopy images show that Au NPs were embedded into magnetic carbon nanospheres, and the mean particle size of Au is around 2.6 nm. The nanohybrids were used as catalysts to remove methylene blue from wastewater in the presence of NaBH4. The results indicated that this catalyst exhibited superior catalytic activity toward methylene blue with a high degradation efficiency above 99% in aqueous solution, which is attributed to the high dispersity of the Au NPs into carbon nanospheres. Moreover, this catalyst showed good selectivity toward methylene blue in the presence of other pollutants. More importantly, the catalyst could be conveniently separated and recycled from the reaction mixtures using an external magnetic field, and the catalytic activity was still retained even over nine cycles. This work indicates that the nanohybrid could be a promising catalyst for the highly efficient and selective degradation of methylene blue from its dye mixtures.
资助项目	National Natural Science Foundation of China[21271093][21431002] ; National Basic Research Program of China (973 Program)[2012CB933102] ; Program for New Century Excellent Talents in University[NCET-13-0262] ; Fundamental Research Funds for the Central Universities[lzujbky-2014-k06] ; Basic Scientific Research Business Expenses of the Central University Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University[LZUMMM2014014]
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000372610200072
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33852]
专题	石油化工学院
通讯作者	Li, Siliang; Wang, Baodui
作者单位	1.Lanzhou Univ Gansu, Key Lab Nonferrous Met Chem & Resources Utilizat, State Key Lab Appl Organ Chem, Key Lab Special Funct Mat & Struct Design,Minist, Lanzhou 730000, Peoples R China 2.Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Zuo, Wei,Chen, Gaosong,Chen, Fengjuan,et al. Green synthesis and characterization of gold nanoparticles embedded into magnetic carbon nanocages and their highly efficient degradation of methylene blue[J]. RSC ADVANCES,2016,6(34):28774-28780.
APA	Zuo, Wei,Chen, Gaosong,Chen, Fengjuan,Li, Siliang,&Wang, Baodui.(2016).Green synthesis and characterization of gold nanoparticles embedded into magnetic carbon nanocages and their highly efficient degradation of methylene blue.RSC ADVANCES,6(34),28774-28780.
MLA	Zuo, Wei,et al."Green synthesis and characterization of gold nanoparticles embedded into magnetic carbon nanocages and their highly efficient degradation of methylene blue".RSC ADVANCES 6.34(2016):28774-28780.