Superb adsorption capacity of hydrothermally synthesized copper oxide and nickel oxide nanoflakes towards anionic and cationic dyes

The CuO and NiO nanoflakes were synthesized by a hydrothermal reaction. The secondary nucleation and growth of hydroxides resulted in the formation of flake like architectures as the prepared nanoparticles were used as an adsorbent for malachite green oxalate (MGO) and methyl orange (MO). The struct...

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Main Authors: Kumar, K. Yogesh, Archana, S., Vinuth Raj, T.N., Prasana, B.P., Raghu, M.S., Muralidhara, H.B.
Format: Article
Language:English
Published: H. : ĐHQGHN 2017
Subjects:
CuO
NiO
MGO
MO
Online Access:http://repository.vnu.edu.vn/handle/VNU_123/58219
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Institution: Vietnam National University, Hanoi
Language: English
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spelling oai:112.137.131.14:VNU_123-582192018-07-23T03:09:21Z Superb adsorption capacity of hydrothermally synthesized copper oxide and nickel oxide nanoflakes towards anionic and cationic dyes Kumar, K. Yogesh Archana, S. Vinuth Raj, T.N. Prasana, B.P. Raghu, M.S. Muralidhara, H.B. CuO NiO Adsorption MGO MO The CuO and NiO nanoflakes were synthesized by a hydrothermal reaction. The secondary nucleation and growth of hydroxides resulted in the formation of flake like architectures as the prepared nanoparticles were used as an adsorbent for malachite green oxalate (MGO) and methyl orange (MO). The structure, morphology and surface properties of the nanoparticles were characterized by XRD, SEM and TEM. Effects of the experimental conditions on the adsorption behavior were studied by varying the contact time, initial concentration, initial pH and temperature. The adsorption of MGO increased with increase in the pH, while the MO adsorption showed an opposite trend. The adsorption kinetics was studied in terms of pseudo-first and second-order kinetics, the Langmuir and Freundlich models were also applied to the equilibrium adsorption data. The adsorption process was spontaneous and exothermic in nature and followed the pseudo-second-order kinetic model. Our study indicates that the CuO and NiO nanoflakes can be used as alternative adsorbents for the efficient removal of dyes from an aqueous solution 2017-08-24T04:34:11Z 2017-08-24T04:34:11Z 2017 Article Kumar, K. Y, et al (2017). Superb adsorption capacity of hydrothermally synthesized copper oxide and nickel oxide nanoflakes towards anionic and cationic dyes. Journal of Science, Advanced Materials and Devices, 2,183-191. 2468-2284 http://repository.vnu.edu.vn/handle/VNU_123/58219 en Journal of Advanced Materials and Devices application/pdf H. : ĐHQGHN
institution Vietnam National University, Hanoi
building VNU Library & Information Center
country Vietnam
collection VNU Digital Repository
language English
topic CuO
NiO
Adsorption
MGO
MO
spellingShingle CuO
NiO
Adsorption
MGO
MO
Kumar, K. Yogesh
Archana, S.
Vinuth Raj, T.N.
Prasana, B.P.
Raghu, M.S.
Muralidhara, H.B.
Superb adsorption capacity of hydrothermally synthesized copper oxide and nickel oxide nanoflakes towards anionic and cationic dyes
description The CuO and NiO nanoflakes were synthesized by a hydrothermal reaction. The secondary nucleation and growth of hydroxides resulted in the formation of flake like architectures as the prepared nanoparticles were used as an adsorbent for malachite green oxalate (MGO) and methyl orange (MO). The structure, morphology and surface properties of the nanoparticles were characterized by XRD, SEM and TEM. Effects of the experimental conditions on the adsorption behavior were studied by varying the contact time, initial concentration, initial pH and temperature. The adsorption of MGO increased with increase in the pH, while the MO adsorption showed an opposite trend. The adsorption kinetics was studied in terms of pseudo-first and second-order kinetics, the Langmuir and Freundlich models were also applied to the equilibrium adsorption data. The adsorption process was spontaneous and exothermic in nature and followed the pseudo-second-order kinetic model. Our study indicates that the CuO and NiO nanoflakes can be used as alternative adsorbents for the efficient removal of dyes from an aqueous solution
format Article
author Kumar, K. Yogesh
Archana, S.
Vinuth Raj, T.N.
Prasana, B.P.
Raghu, M.S.
Muralidhara, H.B.
author_facet Kumar, K. Yogesh
Archana, S.
Vinuth Raj, T.N.
Prasana, B.P.
Raghu, M.S.
Muralidhara, H.B.
author_sort Kumar, K. Yogesh
title Superb adsorption capacity of hydrothermally synthesized copper oxide and nickel oxide nanoflakes towards anionic and cationic dyes
title_short Superb adsorption capacity of hydrothermally synthesized copper oxide and nickel oxide nanoflakes towards anionic and cationic dyes
title_full Superb adsorption capacity of hydrothermally synthesized copper oxide and nickel oxide nanoflakes towards anionic and cationic dyes
title_fullStr Superb adsorption capacity of hydrothermally synthesized copper oxide and nickel oxide nanoflakes towards anionic and cationic dyes
title_full_unstemmed Superb adsorption capacity of hydrothermally synthesized copper oxide and nickel oxide nanoflakes towards anionic and cationic dyes
title_sort superb adsorption capacity of hydrothermally synthesized copper oxide and nickel oxide nanoflakes towards anionic and cationic dyes
publisher H. : ĐHQGHN
publishDate 2017
url http://repository.vnu.edu.vn/handle/VNU_123/58219
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