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Fe3O4 embedded ZnO nanocomposites for the removal of toxic metal ions, organic dyes and bacterial pathogens

DSpace at IIT Bombay

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Title Fe3O4 embedded ZnO nanocomposites for the removal of toxic metal ions, organic dyes and bacterial pathogens
 
Creator SINGH, S
BARICK, KC
BAHADUR, D
 
Subject PHOTOCATALYTIC ACTIVITY
VISIBLE-LIGHT
HEAVY-METALS
WASTE-WATER
NANOPARTICLES
PHOTODEGRADATION
ADSORPTION
CR(VI)
CARBON
SIZE
 
Description We report a facile soft-chemical approach for the fabrication of Fe3O4 embedded ZnO magnetic semiconductor nanocomposites (Fe3O4-ZnO MSN), and investigate and compare their efficacy for the detoxification of water with respect to their individual counterparts (Fe3O4 and ZnO). The formation of Fe3O4-ZnO MSN was evident from the detailed structural analyses by XRD, TEM and magnetic measurements. It has been observed that these nanocomposites have a strong tendency for the simultaneous removal of Ni2+, Cd2+, Co2+, Cu2+, Pb2+, Hg2+ and As3+ from waste-water due to their porous network structure, surface polarity and high surface area. These nanocomposites also show a good photocatalytic activity for the degradation of organic dyes under UV irradiation, and are found to be efficient in the easy and rapid capturing of bacterial pathogen. It has been observed that the efficiency of capturing bacteria is strongly dependent on the concentration of nanoadsorbents and their inoculation time. It is investigated that these nanoadsorbents can be used as highly efficient separable and reusable materials for the simultaneous removal of toxic metal ions, organic dyes and bacterial pathogen.
 
Publisher ROYAL SOC CHEMISTRY
 
Date 2014-10-15T07:56:43Z
2014-10-15T07:56:43Z
2013
 
Type Article
 
Identifier JOURNAL OF MATERIALS CHEMISTRY A, 1(10)3325-3333
http://dx.doi.org/10.1039/c2ta01045c
http://dspace.library.iitb.ac.in/jspui/handle/100/14621
 
Language en