Spinel ferrite magnetic adsorbents: Alternative future materials for water purification?

被引:577
作者
Reddy, D. Harikishore Kumar [1 ]
Yun, Yeoung-Sang [1 ,2 ]
机构
[1] Chonbuk Natl Univ, Div Semicond & Chem Engn, Jeonju 561756, Jeonbuk, South Korea
[2] Chonbuk Natl Univ, Dept Bioproc Engn, Jeonju 561756, Jeonbuk, South Korea
关键词
Spinel ferrite; Spinel ferrite composites; Adsorption; Water pollution; Magnetic nanoparticles; Magnetic adsorbents; HEAVY-METAL IONS; SYNTHETIC ORGANIC-DYES; PERSONAL CARE PRODUCTS; CARBON NANOTUBES; AQUEOUS-SOLUTION; WASTE-WATER; CONGO RED; COFE2O4; NANOPARTICLES; METHYLENE-BLUE; MNFE2O4;
D O I
10.1016/j.ccr.2016.01.012
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Spinel ferrite (SF) magnetic materials are an important class of composite metal oxides containing ferric ions and having the general structural formula M2+Fe23+O4 (where M = Mg2+, Co2+, Ni2+, Zn2+, Fe2+, Mn2+, etc.). SFs possess unique physicochemical properties including excellent magnetic characteristics, high specific surface area, surface active sites, high chemical stability, tunable shape and size, and the ease with which they can be modified or functionalized. As a result of their multifunctional properties, affordability, and magnetic separation capability, SF adsorbents are a top choice for water purification applications that require high adsorption efficiencies and rapid kinetics. In this review, we discuss adsorption performance and possible applications of SFs and their derivatives for treating a wide range of aqueous pollutants such as metal ions, dyes, and pharmaceuticals. Key parameters influencing the sorption performance such as particle size, shape, annealing temperature, functionalization, and metal ion doping have been comprehensively discussed. In addition, adsorbate-adsorbent interactions, desorption, regeneration, and utilization of spent adsorbent have also been summarized. The review also covered, how SFs are prepared from industrial waste using green synthetic routes and general remarks about toxicological effects. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:90 / 111
页数:22
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