Sepiolite/CuFe2O4 Composite: a Magnetic Absorbent for Removal of Contaminants from Water

被引：2

作者：

Huang, Yang ^{[1
]}

Feng, Qiming ^{[1
]}

Wang, Weiqing ^{[1
]}

机构：

[1] SW Univ Sci & Technol, Sch Environm Engn & Resources, Mianyang 621010, Sichuan, Peoples R China

来源：

MATERIALS AND DESIGN, PTS 1-3 | 2011年 / 284-286卷

关键词：

Sepiolite; CuFe2O4; Magnetic property; Adsorption; AQUEOUS-SOLUTIONS; ADSORPTION; REGENERATION; ADSORBENT; KINETICS; ACID; PB2+; DYES;

D O I：

10.4028/www.scientific.net/AMR.284-286.114

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The sepiolite and CuFe2O4 were combined to prepare the sepiolite/CuFe2O4 composite. The magnetic composite was characterized by X-ray diffraction (XRD), transmission electronic microscopy (TEM) and vibration sample magnetometer (VSM) and N-2, adsorption isotherms. Adsorption characteristics of the composite were examined by using Cu2+ and methylene blue as adsorbates. The results show that CuFe2O4 particles adhere to the surface of sepiolite fiber to form the sepiolite/CuFe2O4 composite which show well characteristic of superparamagnetism and is effective for the removal of Cu2+ or methylene blue. When the mass ratios of sepiolite and CuFe2O4 is 7:3, the saturation and remanence magnetization are 7.140 and 0.0246 A.m(2)/kg, and coercive force is 0.0180 A/m for magnetic sepiolite. The saturated adsorption capacity for Cu2+ and the removal rate of methylene blue is 15.72 mg/g, 99.48%, respectively.

引用

页码：114 / 119

页数：6

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