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Effect of seaweed Kappaphycus alvarezii in the synthesis of Cu@Cu2O core–shell nanoparticles prepared by chemical reduction method

This study aims is to investigate the influence of different concentrations of Kappaphycus alvarezii (K. alvarezii) for the synthesis of Cu@Cu2O core–shell nanoparticles (NPs) in aqueous solution. The core–shell NPs were prepared by a chemical reduction method using K. alvarezii, CuSO4·5H2O, NaOH, a...

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Main Authors: Khanehzaei, Hajar, Ahmad @ Ayob, Mansor, Shameli, Kamyar, Ajdari, Zahra, Abd Ghani, Maaruf, Kalantari, Katayoon
Format: Article
Language:English
Published: Springer 2015
Online Access:http://psasir.upm.edu.my/id/eprint/37306/1/Effect%20of%20seaweed%20Kappaphycus%20alvarezii%20in%20the%20synthesis%20of%20Cu%40Cu2O%20core%E2%80%93shell%20nanoparticles%20prepared%20by%20chemical%20reduction%20method.pdf
http://psasir.upm.edu.my/id/eprint/37306/
http://link.springer.com/article/10.1007%2Fs11164-014-1817-0
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spelling my.upm.eprints.373062018-10-09T07:56:34Z http://psasir.upm.edu.my/id/eprint/37306/ Effect of seaweed Kappaphycus alvarezii in the synthesis of Cu@Cu2O core–shell nanoparticles prepared by chemical reduction method Khanehzaei, Hajar Ahmad @ Ayob, Mansor Shameli, Kamyar Ajdari, Zahra Abd Ghani, Maaruf Kalantari, Katayoon This study aims is to investigate the influence of different concentrations of Kappaphycus alvarezii (K. alvarezii) for the synthesis of Cu@Cu2O core–shell nanoparticles (NPs) in aqueous solution. The core–shell NPs were prepared by a chemical reduction method using K. alvarezii, CuSO4·5H2O, NaOH, ascorbic acid, hydrazinium hydroxide, as stabilizer, copper precursor, pH moderator, antioxidant and reducing agent under 120°C temperature, respectively. Formation of Cu@Cu2O-NPs was determined by UV–Vis spectroscopy where surface plasmon absorption maxima can be observed at 390-590 nm. The synthesized core–shell NPs were also characterized by X-ray diffraction. Moreover, the morphology and structure of the K. alvarezii/Cu@Cu2O-NPs were investigated by TEM, FESEM and EDXRF. The Fourier transform infrared spectrum suggested the complexation present between K. alvarezii and Cu@Cu2O-NPs. The study clearly showed that using various amounts of K. alvarezii leads to produce different ratios and sizes of Cu@Cu2O NPs. The size of the Cu@Cu2O-NPs decreased as the amount of K. alvarezii was increased. The ratio of Cu@Cu2O increases with the increasing concentration of K. alvarezii until 0.2 wt%. Springer 2015-10 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37306/1/Effect%20of%20seaweed%20Kappaphycus%20alvarezii%20in%20the%20synthesis%20of%20Cu%40Cu2O%20core%E2%80%93shell%20nanoparticles%20prepared%20by%20chemical%20reduction%20method.pdf Khanehzaei, Hajar and Ahmad @ Ayob, Mansor and Shameli, Kamyar and Ajdari, Zahra and Abd Ghani, Maaruf and Kalantari, Katayoon (2015) Effect of seaweed Kappaphycus alvarezii in the synthesis of Cu@Cu2O core–shell nanoparticles prepared by chemical reduction method. Research on Chemical Intermediates, 41 (10). pp. 7363-7376. ISSN 0922-6168; ESSN: 1568-5675 http://link.springer.com/article/10.1007%2Fs11164-014-1817-0 10.1007/s11164-014-1817-0
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description This study aims is to investigate the influence of different concentrations of Kappaphycus alvarezii (K. alvarezii) for the synthesis of Cu@Cu2O core–shell nanoparticles (NPs) in aqueous solution. The core–shell NPs were prepared by a chemical reduction method using K. alvarezii, CuSO4·5H2O, NaOH, ascorbic acid, hydrazinium hydroxide, as stabilizer, copper precursor, pH moderator, antioxidant and reducing agent under 120°C temperature, respectively. Formation of Cu@Cu2O-NPs was determined by UV–Vis spectroscopy where surface plasmon absorption maxima can be observed at 390-590 nm. The synthesized core–shell NPs were also characterized by X-ray diffraction. Moreover, the morphology and structure of the K. alvarezii/Cu@Cu2O-NPs were investigated by TEM, FESEM and EDXRF. The Fourier transform infrared spectrum suggested the complexation present between K. alvarezii and Cu@Cu2O-NPs. The study clearly showed that using various amounts of K. alvarezii leads to produce different ratios and sizes of Cu@Cu2O NPs. The size of the Cu@Cu2O-NPs decreased as the amount of K. alvarezii was increased. The ratio of Cu@Cu2O increases with the increasing concentration of K. alvarezii until 0.2 wt%.
format Article
author Khanehzaei, Hajar
Ahmad @ Ayob, Mansor
Shameli, Kamyar
Ajdari, Zahra
Abd Ghani, Maaruf
Kalantari, Katayoon
spellingShingle Khanehzaei, Hajar
Ahmad @ Ayob, Mansor
Shameli, Kamyar
Ajdari, Zahra
Abd Ghani, Maaruf
Kalantari, Katayoon
Effect of seaweed Kappaphycus alvarezii in the synthesis of Cu@Cu2O core–shell nanoparticles prepared by chemical reduction method
author_facet Khanehzaei, Hajar
Ahmad @ Ayob, Mansor
Shameli, Kamyar
Ajdari, Zahra
Abd Ghani, Maaruf
Kalantari, Katayoon
author_sort Khanehzaei, Hajar
title Effect of seaweed Kappaphycus alvarezii in the synthesis of Cu@Cu2O core–shell nanoparticles prepared by chemical reduction method
title_short Effect of seaweed Kappaphycus alvarezii in the synthesis of Cu@Cu2O core–shell nanoparticles prepared by chemical reduction method
title_full Effect of seaweed Kappaphycus alvarezii in the synthesis of Cu@Cu2O core–shell nanoparticles prepared by chemical reduction method
title_fullStr Effect of seaweed Kappaphycus alvarezii in the synthesis of Cu@Cu2O core–shell nanoparticles prepared by chemical reduction method
title_full_unstemmed Effect of seaweed Kappaphycus alvarezii in the synthesis of Cu@Cu2O core–shell nanoparticles prepared by chemical reduction method
title_sort effect of seaweed kappaphycus alvarezii in the synthesis of cu@cu2o core–shell nanoparticles prepared by chemical reduction method
publisher Springer
publishDate 2015
url http://psasir.upm.edu.my/id/eprint/37306/1/Effect%20of%20seaweed%20Kappaphycus%20alvarezii%20in%20the%20synthesis%20of%20Cu%40Cu2O%20core%E2%80%93shell%20nanoparticles%20prepared%20by%20chemical%20reduction%20method.pdf
http://psasir.upm.edu.my/id/eprint/37306/
http://link.springer.com/article/10.1007%2Fs11164-014-1817-0
_version_ 1643831959002021888
score 13.211869

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