Synthesis of bimetallic nanoparticles loaded on to PNIPAM hybrid microgel and their catalytic activity

Abstract This study was designed to preparecarboxyl-functionalized poly (N-isopropylacrylamide) PNIPAM microgels having excellent catalytic properties.Recently, researchers are trying to fabricate cost effective and efficient hybrid catalytic materials for the synthesis of nitrogenous compounds alon...

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Autores principales:	Mohib Ullah Kakar, Khakemin Khan, Muhammad Akram, Rokayya Sami, Ebtihal Khojah, Imran Iqbal, Mahmoud Helal, Abdul Hakeem, Yulin Deng, Rongji Dai
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/829ad94b1edd4659a36522c9a4113980
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spelling	oai:doaj.org-article:829ad94b1edd4659a36522c9a41139802021-12-02T16:26:37ZSynthesis of bimetallic nanoparticles loaded on to PNIPAM hybrid microgel and their catalytic activity10.1038/s41598-021-94177-62045-2322https://doaj.org/article/829ad94b1edd4659a36522c9a41139802021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94177-6https://doaj.org/toc/2045-2322Abstract This study was designed to preparecarboxyl-functionalized poly (N-isopropylacrylamide) PNIPAM microgels having excellent catalytic properties.Recently, researchers are trying to fabricate cost effective and efficient hybrid catalytic materials for the synthesis of nitrogenous compounds along with enhanced optical properties. For the same motive, synthesis of carboxyl-functionalized PNIPAM microgels was performed by using polymerization of soap-free emulsion of N-isopropyl acrylamide, which is NIPAM along with acrylic acid (AA). The thiol group was introduced through the imide bond mediated by carbodiimide, between carboxyl-functionalized microgels through carboxyl group and aminoethanethiol (AET). Copper, Palladium and Cu/Pd nanoparticles were incorporated successfully into thiol-functionalized PNIPAM microgels through metals thiol linkage. The synthesized microgels and hybrid encompassing metallic nanoparticles were characterized in detail by using Transmission electron microscopy (TEM), Scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron (XPS) and Fourier transformed infrared spectroscopy for structural interpretation. The thermal properties of the pure and hybrid microgels were inspected by TG analysis. The prepared nanocomposites PNIPAM-Cu, PNIPAM-Pd and PNIPAM-Cu/Pd exhibited decent catalytic properties for the degradation of 4-Nitrophenol and methylene blue, but the bimetallic Cu/Pd have remarkable catalytic properties. The catalytic reaction followed pseudo-first-order reaction with rate constants 0.223 min−1, 0.173 min−1 for 4-Nitrophenol and methylene blue in that order. In this study,we were able to establish that Cu/Pd hybrid is an efficient catalyst for 4-Nitrophenol and methylene blue as compared to its atomic analogue.Mohib Ullah KakarKhakemin KhanMuhammad AkramRokayya SamiEbtihal KhojahImran IqbalMahmoud HelalAbdul HakeemYulin DengRongji DaiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mohib Ullah Kakar Khakemin Khan Muhammad Akram Rokayya Sami Ebtihal Khojah Imran Iqbal Mahmoud Helal Abdul Hakeem Yulin Deng Rongji Dai Synthesis of bimetallic nanoparticles loaded on to PNIPAM hybrid microgel and their catalytic activity
description	Abstract This study was designed to preparecarboxyl-functionalized poly (N-isopropylacrylamide) PNIPAM microgels having excellent catalytic properties.Recently, researchers are trying to fabricate cost effective and efficient hybrid catalytic materials for the synthesis of nitrogenous compounds along with enhanced optical properties. For the same motive, synthesis of carboxyl-functionalized PNIPAM microgels was performed by using polymerization of soap-free emulsion of N-isopropyl acrylamide, which is NIPAM along with acrylic acid (AA). The thiol group was introduced through the imide bond mediated by carbodiimide, between carboxyl-functionalized microgels through carboxyl group and aminoethanethiol (AET). Copper, Palladium and Cu/Pd nanoparticles were incorporated successfully into thiol-functionalized PNIPAM microgels through metals thiol linkage. The synthesized microgels and hybrid encompassing metallic nanoparticles were characterized in detail by using Transmission electron microscopy (TEM), Scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron (XPS) and Fourier transformed infrared spectroscopy for structural interpretation. The thermal properties of the pure and hybrid microgels were inspected by TG analysis. The prepared nanocomposites PNIPAM-Cu, PNIPAM-Pd and PNIPAM-Cu/Pd exhibited decent catalytic properties for the degradation of 4-Nitrophenol and methylene blue, but the bimetallic Cu/Pd have remarkable catalytic properties. The catalytic reaction followed pseudo-first-order reaction with rate constants 0.223 min−1, 0.173 min−1 for 4-Nitrophenol and methylene blue in that order. In this study,we were able to establish that Cu/Pd hybrid is an efficient catalyst for 4-Nitrophenol and methylene blue as compared to its atomic analogue.
format	article
author	Mohib Ullah Kakar Khakemin Khan Muhammad Akram Rokayya Sami Ebtihal Khojah Imran Iqbal Mahmoud Helal Abdul Hakeem Yulin Deng Rongji Dai
author_facet	Mohib Ullah Kakar Khakemin Khan Muhammad Akram Rokayya Sami Ebtihal Khojah Imran Iqbal Mahmoud Helal Abdul Hakeem Yulin Deng Rongji Dai
author_sort	Mohib Ullah Kakar
title	Synthesis of bimetallic nanoparticles loaded on to PNIPAM hybrid microgel and their catalytic activity
title_short	Synthesis of bimetallic nanoparticles loaded on to PNIPAM hybrid microgel and their catalytic activity
title_full	Synthesis of bimetallic nanoparticles loaded on to PNIPAM hybrid microgel and their catalytic activity
title_fullStr	Synthesis of bimetallic nanoparticles loaded on to PNIPAM hybrid microgel and their catalytic activity
title_full_unstemmed	Synthesis of bimetallic nanoparticles loaded on to PNIPAM hybrid microgel and their catalytic activity
title_sort	synthesis of bimetallic nanoparticles loaded on to pnipam hybrid microgel and their catalytic activity
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/829ad94b1edd4659a36522c9a4113980
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Synthesis of bimetallic nanoparticles loaded on to PNIPAM hybrid microgel and their catalytic activity

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