Repository of Research and Investigative Information

Repository of Research and Investigative Information

دانشگاه علوم پزشکی و خدمات بهداشتی درمانی زنجان

Synthesis of magnetite multi-walled carbon nanotubes composite and its application for removal of basic dyes from aqueous solutions

(2014) Synthesis of magnetite multi-walled carbon nanotubes composite and its application for removal of basic dyes from aqueous solutions. ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING. pp. 552-561.

Full text not available from this repository.

Official URL: http://apps.webofknowledge.com/full_record.do?prod...

Abstract

A magnetic composite of multi-wall carbon nanotubes and magnetite nanoparticles was synthesized, and its applicability to the removal of dye contaminants from aqueous solutions was investigated as adsorbent. Tris(4-(dimethylamino) phenyl) methylium chloride or crystal violet (also known as gentian violet) was used as a representative of the basic dyes, and an orthogonal array design with four factors-three levels (3(4)) matrix-was applied to assign the significant factors affecting the dye uptake. The chosen experimental parameters and their ranges were the following: pH, 9-11; adsorbent, 0.002-0.01 g; NaCl concentration, 0-4%; removal time, 1-5 min. L9 orthogonal array for experimental design and the smaller the best criterion based on reduction of residual dye were used to determine the optimum conditions, which were found to be pH = 9, 0.01 g adsorbent, 5 min removal time, and 0% NaCl, respectively. Analysis of variances revealed that the amount of adsorbent affected the adsorption efficiency of crystal violet significantly. The adsorption capacity of sorbent was found to be 38 mg g(-1). The magnetic composite displayed the main advantage of separation convenience compared with the other adsorption techniques. (C) 2014 Curtin University of Technology and John Wiley & Sons, Ltd.

Item Type: Article
Keywords: Author Keywords:multi-walled carbon nanotubes; composite; basic dye removal; experimental design KeyWords Plus:PHASE EXTRACTION ADSORBENT; CRYSTAL-VIOLET; METHYL-VIOLET; ADSORPTION; WATER; EQUILIBRIUM; NANOPARTICLES; SORPTION
Page Range: pp. 552-561
Journal or Publication Title: ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
Abstract and Indexing: Scopus
Quartile : Q3
Volume: 9
Number: 4
Publisher: web of science
Depositing User: خانم مریم زرقانی
URI: http://repository.zums.ac.ir/id/eprint/1988

Actions (login required)

View Item View Item