High performance polydopamine-functionalized mesoporous silica nanospheres for U(VI) removal

doi:10.1016/j.apsusc.2017.07.274

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院等离子体物理研究所

	High performance polydopamine-functionalized mesoporous silica nanospheres for U(VI) removal
	Bai, Linfeng 1,2; Duan, Shengxia 3; Jiang, Wanquan 1; Liu, Mei 1; Wang, Sheng 1; Sang, Min 1; Gong, Xinglong 2; Li, Jiaxing 3; Xuan, Shouhu 2
刊名	APPLIED SURFACE SCIENCE
	2017-12-31
卷号	426 期号:无页码:1121-1132
关键词	Dopamine Mesoporous silica Adsorption U(VI)
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2017.07.274
英文摘要	This work reports the fabrication of polydopamine-functionalized mesoporous silica (mSiO(2)/PDA) nanospheres for removing U(VI) from aqueous solution. The maximum adsorption capacity of mSiO(2)/PDA is 332.3mg/g at 318.15 K and pH = 5.5. In comparison to the pristine mSiO(2), the adsorption capacity of mSiO(2)/PDA has been remarkably enhanced, which can be ascribed to the large amounts of functional groups existed on the surface of mSiO(2)/PDA. The adsorption process fits well with the pseudo-second-order kinetics model. The adsorption isotherm follows the Langmuir isotherm model, revealing a monolayer adsorption of U(VI) onto mSiO(2)/PDA. Thermodynamic analysis indicates a spontaneous and endothermic adsorption process. Additionally, this adsorption process is pH-dependent, while the effect of ionic strength is negligible. (C) 2017 Elsevier B.V. All rights reserved.
资助项目	Collaborative Innovation Center of Suzhou Nano Science and Technology ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040502] ; fundamental research funds for the Central Universities[WK2480000002] ; National Natural Science Foundation of China[11372301] ; National Natural Science Foundation of China[11572310]
WOS关键词	MULTIWALLED CARBON NANOTUBES ; AQUEOUS-SOLUTIONS ; GRAPHENE OXIDE ; EFFICIENT REMOVAL ; URANIUM EXTRACTION ; BIO-NANOCOMPOSITES ; WASTE-WATER ; ADSORPTION ; SORPTION ; RADIONUCLIDES
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000413658200125
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/35741]
专题	合肥物质科学研究院_中科院等离子体物理研究所
通讯作者	Jiang, Wanquan; Gong, Xinglong; Xuan, Shouhu
作者单位	1.USTC, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Dept Chem, Hefei 230026, Anhui, Peoples R China 2.USTC, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Key Lab Novel Thin Film Solar Cells, POB 1126, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Bai, Linfeng,Duan, Shengxia,Jiang, Wanquan,et al. High performance polydopamine-functionalized mesoporous silica nanospheres for U(VI) removal[J]. APPLIED SURFACE SCIENCE,2017,426(无):1121-1132.
APA	Bai, Linfeng.,Duan, Shengxia.,Jiang, Wanquan.,Liu, Mei.,Wang, Sheng.,...&Xuan, Shouhu.(2017).High performance polydopamine-functionalized mesoporous silica nanospheres for U(VI) removal.APPLIED SURFACE SCIENCE,426(无),1121-1132.
MLA	Bai, Linfeng,et al."High performance polydopamine-functionalized mesoporous silica nanospheres for U(VI) removal".APPLIED SURFACE SCIENCE 426.无(2017):1121-1132.