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Removal of emerging micropollutants from water using hybrid material precursor to natural sericite clay

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Title Removal of emerging micropollutants from water using hybrid material precursor to natural sericite clay
 
Creator Lalhmunsiama
Pawar, Radheshyam R
Chowdhury, Aniket
Zirlianngura
Lee, Seung Mok
 
Subject Hybrid material
Mesopore
Micropollutants
Organosilane
Sericite
 
Description 602-610
The occurrence of a wide range of micropollutants in natural aquatic environment has been reported in different parts of the
world. These compounds are harmful for the aquatic life and human beings. Diclofenac and clofibric acid are the two common
toxic micropollutants due to very large production and high consumption by humans. The present communication addresses the
removal of diclofenac and clofibric acid from aqueous solutions using the hybrid material obtained by incorporating
3-aminopropyltriethoxysilane (APTES) onto the activated sericite clay. Initially, sericte clay was treated for activation and further
modified with organosilane to obtain hybrid material. The materials were characterized using SEM, BET surface area, XRD, and
FT-IR analyses. SEM and BET surface area analyses showed that the textural property of sericite clay was greatly changed after
activation and the surface area was immensely increased from 3.65 to 62.92 m2/g. The organosilane was anchored on the activated
clay and confirmed with FTIR analysis. Batch adsorption experiments showed that the diclofenac and clofibric acid removal is
maximum at pH 6.0 to 7.0 and the adsorption of these two micropollutants were observed to be very fast and the time dependent
adsorption data were best fitted to pseudo-second order kinetic model. The maximum adsorption capacity of diclofenac and
clofibric acid using APTES-sericite hybrid material was found to be 1.868 and 1.749 mg/g, respectively. Furthermore, the loading
capacities of the column packed with APTES-sericite hybrid material were found to be 0.789 and 1.095 mg/g. Therefore, this study
indicated that the APTES-sericite hybrid material must be an useful material for the effective removal of diclofenac and clofibric
acid from aqueous waste.
 
Date 2021-12-07T04:52:00Z
2021-12-07T04:52:00Z
2021-12
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscair.res.in/handle/123456789/58594
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJBB Vol.58(6) [December 2021]