Synthesis of mesoporous cerium-zirconium binary oxide nanoadsorbents by a solvothermal process and their effective adsorption of phosphate from water

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	Synthesis of mesoporous cerium-zirconium binary oxide nanoadsorbents by a solvothermal process and their effective adsorption of phosphate from water
	Y.; Yang Su, W. Y.; Sun, W. Z.; Li, Q.; Shang, J. K.
	2015
发表期刊	Chemical Engineering Journal
ISSN	1385-8947
卷号	268 页码:270-279
摘要	Cerium-zirconium binary oxide nanoparticles were synthesized by a simple and low-cost solvothermal process without templates, and their phosphate removal performance was investigated in batch studies. Through careful modulation of the Ce/Zr ratio, Ce/Zr binary oxide nanoparticles were created with different structure, crystal size, surface properties, and phosphate adsorption performance. It was found that Ce0.8Zr0.2O2 nanoparticles had the best phosphate adsorption performance among these Ce/Zr binary oxide nanoparticles, which could be attributed to their desirable structure and surface properties. The phosphate adsorption capacity of Ce0.8Zr0.2O2 nanoparticles was determined at similar to 112.23 mg/g, the highest among various adsorbents reported in literature. The adsorption of phosphate onto Ce0.8Zr0.2O2 nanoparticles followed the inner-sphere complexing mechanism, and the surface -OH groups played the major role. Commonly coexisting anions showed no or moderate effect on the phosphate adsorption onto Ce0.8Zr0.2O2 nanoparticles, and little pH dependence was observed for their phosphate adsorption in the range from pH 2 to 6. After adsorption, phosphate adsorbed on these Ce0.8Zr0.2O2 nanoparticles could be easily desorbed by NaOH solution washing. (C) 2015 Elsevier B.V. All rights reserved.
部门归属	[su, yu ; yang, weiyi ; sun, wuzhu ; li, qi ; shang, jian ku] chinese acad sci, inst met res, shenyang natl lab mat sci, environm funct mat div, shenyang 110016, peoples r china. [shang, jian ku] univ illinois, dept mat sci & engn, urbana, il 61801 usa. ; li, q (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, environm funct mat div, shenyang 110016, peoples r china. ; qili@imr.ac.cn
关键词	Phosphate Removal Cerium-zirconium Composite Oxides Adsorption Inner-sphere Complexing Mechanism Desorption Aqueous-solution Waste-water Simultaneous Removal Catalytic-properties Fe Sorption Eutrophication Phosphorus Adsorbent Acid
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73919
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y.,Yang Su, W. Y.,Sun, W. Z.,et al. Synthesis of mesoporous cerium-zirconium binary oxide nanoadsorbents by a solvothermal process and their effective adsorption of phosphate from water[J]. Chemical Engineering Journal,2015,268:270-279.
APA	Y.,Yang Su, W. Y.,Sun, W. Z.,Li, Q.,&Shang, J. K..(2015).Synthesis of mesoporous cerium-zirconium binary oxide nanoadsorbents by a solvothermal process and their effective adsorption of phosphate from water.Chemical Engineering Journal,268,270-279.
MLA	Y.,et al."Synthesis of mesoporous cerium-zirconium binary oxide nanoadsorbents by a solvothermal process and their effective adsorption of phosphate from water".Chemical Engineering Journal 268(2015):270-279.