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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
Source PublicationChemical Engineering Journal
ISSN1385-8947
Volume268Pages:270-279
AbstractCerium-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.
description.department[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
KeywordPhosphate 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
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73919
Collection中国科学院金属研究所
Recommended Citation
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.
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