The synthesis and characterization of AlPO4 hollow microspheres of uniform size, and the sorption properties for Pb2+, Cd2+, Cu2+, and Zn2+

被引：19
|
作者：
Gong, Fuzhong [1 ]
Cai, Huameng [1 ]
Zhou, Bin [1 ]
Ou, Huilin [1 ]
机构：
[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2018年 / 554卷
关键词：
Aluminum phosphate hollow microspheres; Synthesis; Polystyrene; Template; Sorption; Heavy metal ions; HEAVY-METAL IONS; ADSORPTION PERFORMANCE; AQUEOUS-SOLUTION; REMOVAL; WATER; PHOSPHATE; CATALYSTS; ACID; LEAD; EXTRACTION;
D O I：
10.1016/j.colsurfa.2018.06.027
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Well-defined aluminum phosphate hollow microspheres (AlPO4-HMs) of uniform size were synthesized via homogeneous precipitation using polystyrene (PS) as the template. The as-prepared AlPO4-HMs were characterized by FESEM, TEM, XRD, FTIR and N-2 adsorption/desorption. The adsorption of AlPO4-HMs towards Pb2+, Cd2+, Cu2+ and Zn2+ metal ions was also studied. The FESEM and TEM images show that the AlPO4-HMs display a regular spherical hollow structure that is about 250 nm in size, and have a special and superior sorption performance for Pb2+ adsorption from aqueous solution compared with the Cd2+, Cu2+, Zn2+ metal ions. The adsorption of Pb2+ ions follows the Langmuir isotherm and the Pseudo-second-order kinetic equation as well as the intra-particle diffusion model.
引用
收藏
页码：286 / 295
页数：10
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