Effective removal of methylene blue from aqueous solution using a new magnetic iron oxide nanosorbent prepared by combustion synthesis

被引：45

作者：

Pacurariu, Cornelia ^{[1
]}

Paska, Oana ^{[1
]}

Ianos, Robert ^{[1
]}

Muntean, Simona Gabriela ^{[2
]}

机构：

[1] Politehn Univ Timisoara, Fac Ind Chem & Environm Engn, 6 Pirvan Blv, Timisoara 300223, Romania

[2] Romanian Acad, Inst Chem Timisoara, 24 Mihai Viteazul Str, Timisoara 300223, Romania

来源：

CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY | 2016年 / 18卷 / 03期

关键词：

Adsorption; Iron oxide; Magnetic nanopowders; Methylene blue; HEAVY-METAL IONS; WASTE-WATER; ADSORPTION PROPERTIES; CATIONIC DYE; AZO DYES; NANOPARTICLES; FE3O4; ACID; PHOTODEGRADATION; EQUILIBRIUM;

D O I：

10.1007/s10098-015-1041-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A magnetic iron oxide nanopowder (MnP) prepared by a new combustion technique was characterized and tested as adsorbent for methylene blue (MB) removal from aqueous solution. The effects of pH, adsorbent dose, initial dye concentration, contact time, and temperature on the amount of MB adsorbed were studied. The adsorption kinetics were described by a pseudo-second-order model, and the equilibrium experimental data were well fitted to the Langmuir isotherm, yielding a maximum adsorption capacity of 25.54 mg g(-1). The adsorption mechanism is governed by electrostatic forces and is highly dependent on the pH. The MnP adsorbent demonstrated excellent stability, showing good removal efficiency even after eight cycles of reuse, suggesting its potential large-scale application for the removal and recovery of MB from wastewater.

引用

页码：705 / 715

页数：11

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