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Synergistic absorbents based on SnFe2O4@ZnO nanoparticles decorated with reduced graphene oxide for highly efficient dye adsorption at room temperature

Recently, adsorption techniques have emerged as practical and effective methods for removing organic dyes, dramatically extending practical capabilities for treating deleterious pollutants in wastewater. However, an urgent issue restricting the performance of these techniques is that no available ab...

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Main Authors: Singh, Pawan Kumar, Kuo, Kuan-Yi, Lee, Jui-Teng, Hsiao, Po-Hsuan, Juan, Joon Ching, Duong, Hong Phan, Chen, Chia-Yun
格式: Article
出版: Royal Society of Chemistry 2021
主題:
QD Chemistry
TP Chemical technology
在線閱讀:http://eprints.um.edu.my/28808/
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spelling my.um.eprints.288082022-08-18T07:41:43Z http://eprints.um.edu.my/28808/ Synergistic absorbents based on SnFe2O4@ZnO nanoparticles decorated with reduced graphene oxide for highly efficient dye adsorption at room temperature Singh, Pawan Kumar Kuo, Kuan-Yi Lee, Jui-Teng Hsiao, Po-Hsuan Juan, Joon Ching Duong, Hong Phan Chen, Chia-Yun QD Chemistry TP Chemical technology Recently, adsorption techniques have emerged as practical and effective methods for removing organic dyes, dramatically extending practical capabilities for treating deleterious pollutants in wastewater. However, an urgent issue restricting the performance of these techniques is that no available absorbents that can be used to treat both cationic and anionic organic dyes have been made with simple and reliable methods until now. Herein, we report a green synthetic strategy for the preparation of SnFe2O4/ZnO nanoparticles decorated on reduced graphene oxide (rGO), exhibiting a remarkably large surface area (120.33 m(2) g(-1)). Substantial adsorption efficiency for removing MB dye was achieved, with 91.3% removal within 20 min at room temperature, and efficiencies of 79.6 to 92.8% are maintained as the pH conditions are varied from 3 to 11. Moreover, under mixed-dye conditions, involving MB, RhB, MO, RB5, and R6G organic materials, with dye concentrations ranging from 0.005 mM to 0.09 mM, an adsorption efficiency of above 50% can be reliably reached within 20 min. Such striking features can be interpreted as arising from a synergistic effect involving the hybrid composite based on a rGO matrix with negative charge and the dispersed SnFe2O4/ZnO nanoparticles with positive charge, additionally offering abundant adsorptive sites to allow reliable dye-adsorption kinetics. Royal Society of Chemistry 2021-05-27 Article PeerReviewed Singh, Pawan Kumar and Kuo, Kuan-Yi and Lee, Jui-Teng and Hsiao, Po-Hsuan and Juan, Joon Ching and Duong, Hong Phan and Chen, Chia-Yun (2021) Synergistic absorbents based on SnFe2O4@ZnO nanoparticles decorated with reduced graphene oxide for highly efficient dye adsorption at room temperature. RSC Advances, 11 (29). pp. 17840-17848. ISSN 2046-2069, DOI https://doi.org/10.1039/d1ra02317a <https://doi.org/10.1039/d1ra02317a>. 10.1039/d1ra02317a
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QD Chemistry
TP Chemical technology
spellingShingle QD Chemistry
TP Chemical technology
Singh, Pawan Kumar
Kuo, Kuan-Yi
Lee, Jui-Teng
Hsiao, Po-Hsuan
Juan, Joon Ching
Duong, Hong Phan
Chen, Chia-Yun
Synergistic absorbents based on SnFe2O4@ZnO nanoparticles decorated with reduced graphene oxide for highly efficient dye adsorption at room temperature
description Recently, adsorption techniques have emerged as practical and effective methods for removing organic dyes, dramatically extending practical capabilities for treating deleterious pollutants in wastewater. However, an urgent issue restricting the performance of these techniques is that no available absorbents that can be used to treat both cationic and anionic organic dyes have been made with simple and reliable methods until now. Herein, we report a green synthetic strategy for the preparation of SnFe2O4/ZnO nanoparticles decorated on reduced graphene oxide (rGO), exhibiting a remarkably large surface area (120.33 m(2) g(-1)). Substantial adsorption efficiency for removing MB dye was achieved, with 91.3% removal within 20 min at room temperature, and efficiencies of 79.6 to 92.8% are maintained as the pH conditions are varied from 3 to 11. Moreover, under mixed-dye conditions, involving MB, RhB, MO, RB5, and R6G organic materials, with dye concentrations ranging from 0.005 mM to 0.09 mM, an adsorption efficiency of above 50% can be reliably reached within 20 min. Such striking features can be interpreted as arising from a synergistic effect involving the hybrid composite based on a rGO matrix with negative charge and the dispersed SnFe2O4/ZnO nanoparticles with positive charge, additionally offering abundant adsorptive sites to allow reliable dye-adsorption kinetics.
format Article
author Singh, Pawan Kumar
Kuo, Kuan-Yi
Lee, Jui-Teng
Hsiao, Po-Hsuan
Juan, Joon Ching
Duong, Hong Phan
Chen, Chia-Yun
author_facet Singh, Pawan Kumar
Kuo, Kuan-Yi
Lee, Jui-Teng
Hsiao, Po-Hsuan
Juan, Joon Ching
Duong, Hong Phan
Chen, Chia-Yun
author_sort Singh, Pawan Kumar
title Synergistic absorbents based on SnFe2O4@ZnO nanoparticles decorated with reduced graphene oxide for highly efficient dye adsorption at room temperature
title_short Synergistic absorbents based on SnFe2O4@ZnO nanoparticles decorated with reduced graphene oxide for highly efficient dye adsorption at room temperature
title_full Synergistic absorbents based on SnFe2O4@ZnO nanoparticles decorated with reduced graphene oxide for highly efficient dye adsorption at room temperature
title_fullStr Synergistic absorbents based on SnFe2O4@ZnO nanoparticles decorated with reduced graphene oxide for highly efficient dye adsorption at room temperature
title_full_unstemmed Synergistic absorbents based on SnFe2O4@ZnO nanoparticles decorated with reduced graphene oxide for highly efficient dye adsorption at room temperature
title_sort synergistic absorbents based on snfe2o4@zno nanoparticles decorated with reduced graphene oxide for highly efficient dye adsorption at room temperature
publisher Royal Society of Chemistry
publishDate 2021
url http://eprints.um.edu.my/28808/
_version_ 1744649140784070656
score 13.250246

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