Ecospheric Decontamination Attained via Green Nanobiotechnological NiO-Based Nanocatalyst Derived from Nature’s Biofactories

Taghazal Zahra,1 Khuram Shahzad Ahmad,1 Dauod Ali2 1Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan; 2Department of Zoology, College of Sciences, King Saud University, Riyadh 11451, Saudi ArabiaCorrespondence: Khuram Shahzad Ahmad Email chemist.phd33@yahoo....

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Autores principales:	Zahra T, Ahmad KS, Ali D
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2020
Materias:	bio-inspired nano-catalyst methyl orange environmental remediation catalytic Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/c7963c8817b64faaab4f97941266ed7a
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spelling	oai:doaj.org-article:c7963c8817b64faaab4f97941266ed7a2021-12-02T11:06:48ZEcospheric Decontamination Attained via Green Nanobiotechnological NiO-Based Nanocatalyst Derived from Nature’s Biofactories1178-2013https://doaj.org/article/c7963c8817b64faaab4f97941266ed7a2020-10-01T00:00:00Zhttps://www.dovepress.com/ecospheric-decontamination-attained-via-green-nanobiotechnological-nio-peer-reviewed-article-IJNhttps://doaj.org/toc/1178-2013Taghazal Zahra,1 Khuram Shahzad Ahmad,1 Dauod Ali2 1Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan; 2Department of Zoology, College of Sciences, King Saud University, Riyadh 11451, Saudi ArabiaCorrespondence: Khuram Shahzad Ahmad Email chemist.phd33@yahoo.comIntroduction: Water contamination from dye effluents from various industrial sources has become a major challenge of the scientific community that is difficult to remediate using orthodox chemical and biological procedures. As such, there is a need for more suitable and cost-effective ways to treat such effluents. The present work describes a green-synthesis approach for preparation of three types of Ni-based oxides as effective catalytic materials to remove environmental pollutants. Metal oxide nanomaterials are cheap, abundant, and ecofriendly earth metals, and thus are promising materials for catalytic applications for environmental detoxification.Methods: An aqueous leaf extract of Prunus persica was used as a reducing agent for the synthesis of NiO, NiO–PdO, and NiO–ZnO nanoparticles (NPs). The leaf extract was treated with each metal-salt precursor based on sol–gel synthesis, and then the final procured NPs were analyzed by spectroscopic techniques for structural and morphological makeup. The pure NPs were further explored for catalytic degradation of hazardous aqueous dye at ambient conditions, instead of following any sophisticated experimental conditions.Results and Discussion: Morphological features revealed the pure formation of NiO, NiO–ZnO, and NiO–PdO NPs of size < 100nm, characterized by X-ray diffraction spectroscopy and scanning electron microscopy. Catalytic tests with methyl orange revealed the remediation potential of synthesized material, showing the pseudo–first order kinetics (R2< 1) for NiO, NiO–PdO, and NiO–ZnO. NiO–ZnO gave outstanding results both in dark (R2=0.88) and light (R2=0.82) with degradation percentage of 99% (dark) in comparison with the other two catalysts. Moreover, excellent catalyst stability for NiO–ZnO) was observed, even after the fourth cycle, under both light and dark conditions and was separated easily during centrifugation.Conclusion: Although all three materials depicted the degradation potential with good stability, but the NiO–ZnO catalyst was the best catalytic material in the present investigation, with prominent degradation percentage, and can be considered as an efficient catalytic material. Thus, we conclude that P. persica–inspired catalytic material could pave the path toward environmental remediation, alternative clean energy, and other biological applications.Keywords: bioinspired, nanocatalyst, methyl orange, environmental remediation, catalyticZahra TAhmad KSAli DDove Medical Pressarticlebio-inspirednano-catalystmethyl orangeenvironmental remediationcatalyticMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol Volume 15, Pp 8357-8367 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	bio-inspired nano-catalyst methyl orange environmental remediation catalytic Medicine (General) R5-920
spellingShingle	bio-inspired nano-catalyst methyl orange environmental remediation catalytic Medicine (General) R5-920 Zahra T Ahmad KS Ali D Ecospheric Decontamination Attained via Green Nanobiotechnological NiO-Based Nanocatalyst Derived from Nature’s Biofactories
description	Taghazal Zahra,1 Khuram Shahzad Ahmad,1 Dauod Ali2 1Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan; 2Department of Zoology, College of Sciences, King Saud University, Riyadh 11451, Saudi ArabiaCorrespondence: Khuram Shahzad Ahmad Email chemist.phd33@yahoo.comIntroduction: Water contamination from dye effluents from various industrial sources has become a major challenge of the scientific community that is difficult to remediate using orthodox chemical and biological procedures. As such, there is a need for more suitable and cost-effective ways to treat such effluents. The present work describes a green-synthesis approach for preparation of three types of Ni-based oxides as effective catalytic materials to remove environmental pollutants. Metal oxide nanomaterials are cheap, abundant, and ecofriendly earth metals, and thus are promising materials for catalytic applications for environmental detoxification.Methods: An aqueous leaf extract of Prunus persica was used as a reducing agent for the synthesis of NiO, NiO–PdO, and NiO–ZnO nanoparticles (NPs). The leaf extract was treated with each metal-salt precursor based on sol–gel synthesis, and then the final procured NPs were analyzed by spectroscopic techniques for structural and morphological makeup. The pure NPs were further explored for catalytic degradation of hazardous aqueous dye at ambient conditions, instead of following any sophisticated experimental conditions.Results and Discussion: Morphological features revealed the pure formation of NiO, NiO–ZnO, and NiO–PdO NPs of size < 100nm, characterized by X-ray diffraction spectroscopy and scanning electron microscopy. Catalytic tests with methyl orange revealed the remediation potential of synthesized material, showing the pseudo–first order kinetics (R2< 1) for NiO, NiO–PdO, and NiO–ZnO. NiO–ZnO gave outstanding results both in dark (R2=0.88) and light (R2=0.82) with degradation percentage of 99% (dark) in comparison with the other two catalysts. Moreover, excellent catalyst stability for NiO–ZnO) was observed, even after the fourth cycle, under both light and dark conditions and was separated easily during centrifugation.Conclusion: Although all three materials depicted the degradation potential with good stability, but the NiO–ZnO catalyst was the best catalytic material in the present investigation, with prominent degradation percentage, and can be considered as an efficient catalytic material. Thus, we conclude that P. persica–inspired catalytic material could pave the path toward environmental remediation, alternative clean energy, and other biological applications.Keywords: bioinspired, nanocatalyst, methyl orange, environmental remediation, catalytic
format	article
author	Zahra T Ahmad KS Ali D
author_facet	Zahra T Ahmad KS Ali D
author_sort	Zahra T
title	Ecospheric Decontamination Attained via Green Nanobiotechnological NiO-Based Nanocatalyst Derived from Nature’s Biofactories
title_short	Ecospheric Decontamination Attained via Green Nanobiotechnological NiO-Based Nanocatalyst Derived from Nature’s Biofactories
title_full	Ecospheric Decontamination Attained via Green Nanobiotechnological NiO-Based Nanocatalyst Derived from Nature’s Biofactories
title_fullStr	Ecospheric Decontamination Attained via Green Nanobiotechnological NiO-Based Nanocatalyst Derived from Nature’s Biofactories
title_full_unstemmed	Ecospheric Decontamination Attained via Green Nanobiotechnological NiO-Based Nanocatalyst Derived from Nature’s Biofactories
title_sort	ecospheric decontamination attained via green nanobiotechnological nio-based nanocatalyst derived from nature’s biofactories
publisher	Dove Medical Press
publishDate	2020
url	https://doaj.org/article/c7963c8817b64faaab4f97941266ed7a
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Ecospheric Decontamination Attained via Green Nanobiotechnological NiO-Based Nanocatalyst Derived from Nature&rsquo;s Biofactories

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Ecospheric Decontamination Attained via Green Nanobiotechnological NiO-Based Nanocatalyst Derived from Nature’s Biofactories