NDLI: Synthesis of tin oxide nanospheres under ambient conditions and their strong adsorption of As(III) from water

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Zhang, Ge Li, Qi Shang, Jian Ku Liu, Lingmei Xu, Zhengchao Yang, Weiyi Sun, Wuzhu
Description	Author Affiliation: Zhang G ( Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning Province 110016, P. R. China. qili@imr.ac.cn.)
Abstract	The development of highly efficient As(III) adsorbents is critical to largely simplify the arsenic treatment process and lower its cost. For the first time, $SnO_{2}$ nanospheres were demonstrated to possess a highly efficient As(III) adsorption capability from water in a near neutral pH environment as predicted by the material criterion we recently developed for the selection of highly efficient arsenic adsorbents. These $SnO_{2}$ nanospheres were synthesized by a simple and cost-effective hydrolysis process with the assistance of ethyl acetate under ambient conditions, which had a good dispersity, a narrow size distribution, a relatively large specific surface area, and a porous structure. A fast As(III) adsorption was observed in the kinetics study on these $SnO_{2}$ nanospheres, and their Langmuir adsorption capacity was determined to be ∼112.7 mg $g^{−1}$ at pH ∼7. The As(III) adsorption mechanism on $SnO_{2}$ nanospheres was examined by both macroscopic and microscopic techniques, which demonstrated that it followed the inner-sphere complex model. These $SnO_{2}$ nanospheres demonstrated effective As(III) adsorption even with exceptionally high concentrations of co-existing ions, and a good regeneration capability by washing with NaOH solution.
ISSN	14779226
Issue Number	41
Volume Number	44
e-ISSN	13645447
Journal	Dalton Trans.
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2015-11-07
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Arsenic Isolation & Purification Nanospheres Chemistry Tin Compounds Water Pollutants, Chemical Water Purification Methods Water Analysis Adsorption Economics Journal Article Research Support, Non-U.S. Gov't
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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