Preparation and characterization of ZnO, MgO and ZnO–MgO hybrid nanomaterials using green chemistry approach

In the present study, a novel green synthesis of ZnO, ZnO–MgO nanocomposites (NC) [NC-1 (25% Zn - 75% MgO); NC-2 (50% Zn – 50% MgO); (75% Zn – 25% MgO)] and MgO nanomaterials using red seaweed was proposed. For the first time, Kappaphycus alvarezii was employed in this synthesis which makes the proc...

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Main Authors:	Jayakaran Pachiyappan, Nirmala Gnanasundaram, Govindarajan Lakshmana Rao
Format:	Article
Language:	English
Published:	Elsevier 2020-09-01
Series:	Results in Materials
Subjects:	ZnO ZnO–MgO MgO Nano materials Red seaweed
Online Access:	http://www.sciencedirect.com/science/article/pii/S2590048X20300467

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record_format	Article
spelling	doaj-05decebebd31419893f2ff427cda7b922020-11-25T03:06:09ZengElsevierResults in Materials2590-048X2020-09-017100104Preparation and characterization of ZnO, MgO and ZnO–MgO hybrid nanomaterials using green chemistry approachJayakaran Pachiyappan0Nirmala Gnanasundaram1Govindarajan Lakshmana Rao2School of Chemical Engineering, VIT University, Vellore, IndiaSchool of Chemical Engineering, VIT University, Vellore, India; Corresponding author.Department of Chemical Engineering, College of Applied Sciences, OmanIn the present study, a novel green synthesis of ZnO, ZnO–MgO nanocomposites (NC) [NC-1 (25% Zn - 75% MgO); NC-2 (50% Zn – 50% MgO); (75% Zn – 25% MgO)] and MgO nanomaterials using red seaweed was proposed. For the first time, Kappaphycus alvarezii was employed in this synthesis which makes the process simple, rapid, economical and eco-friendly. The nanomaterials were synthesized using single-step co-precipitation method and thus produced nanomaterials were investigated using UV-DRS spectroscopy, structural studies by XRD, FTIR, HR-SEM, TEM and EDAX. The absorption spectra of ZnO, ZnO–MgO nanocomposites (NC-1, NC-2, NC-3) and MgO nanomaterials showed that the optical band gaps were found to be 3.04, 3.17, 3.08, 2.98 and 4.71 eV, respectively. Thus, the produced nanoparticles can be employed as efficient adsorbent for the removal of chemical oxygen demand, nitrogen, phosphorous in addition to effective adsorptive treatment of dyes and heavy metals.http://www.sciencedirect.com/science/article/pii/S2590048X20300467ZnOZnO–MgOMgONano materialsRed seaweed
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Jayakaran Pachiyappan Nirmala Gnanasundaram Govindarajan Lakshmana Rao
spellingShingle	Jayakaran Pachiyappan Nirmala Gnanasundaram Govindarajan Lakshmana Rao Preparation and characterization of ZnO, MgO and ZnO–MgO hybrid nanomaterials using green chemistry approach Results in Materials ZnO ZnO–MgO MgO Nano materials Red seaweed
author_facet	Jayakaran Pachiyappan Nirmala Gnanasundaram Govindarajan Lakshmana Rao
author_sort	Jayakaran Pachiyappan
title	Preparation and characterization of ZnO, MgO and ZnO–MgO hybrid nanomaterials using green chemistry approach
title_short	Preparation and characterization of ZnO, MgO and ZnO–MgO hybrid nanomaterials using green chemistry approach
title_full	Preparation and characterization of ZnO, MgO and ZnO–MgO hybrid nanomaterials using green chemistry approach
title_fullStr	Preparation and characterization of ZnO, MgO and ZnO–MgO hybrid nanomaterials using green chemistry approach
title_full_unstemmed	Preparation and characterization of ZnO, MgO and ZnO–MgO hybrid nanomaterials using green chemistry approach
title_sort	preparation and characterization of zno, mgo and zno–mgo hybrid nanomaterials using green chemistry approach
publisher	Elsevier
series	Results in Materials
issn	2590-048X
publishDate	2020-09-01
description	In the present study, a novel green synthesis of ZnO, ZnO–MgO nanocomposites (NC) [NC-1 (25% Zn - 75% MgO); NC-2 (50% Zn – 50% MgO); (75% Zn – 25% MgO)] and MgO nanomaterials using red seaweed was proposed. For the first time, Kappaphycus alvarezii was employed in this synthesis which makes the process simple, rapid, economical and eco-friendly. The nanomaterials were synthesized using single-step co-precipitation method and thus produced nanomaterials were investigated using UV-DRS spectroscopy, structural studies by XRD, FTIR, HR-SEM, TEM and EDAX. The absorption spectra of ZnO, ZnO–MgO nanocomposites (NC-1, NC-2, NC-3) and MgO nanomaterials showed that the optical band gaps were found to be 3.04, 3.17, 3.08, 2.98 and 4.71 eV, respectively. Thus, the produced nanoparticles can be employed as efficient adsorbent for the removal of chemical oxygen demand, nitrogen, phosphorous in addition to effective adsorptive treatment of dyes and heavy metals.
topic	ZnO ZnO–MgO MgO Nano materials Red seaweed
url	http://www.sciencedirect.com/science/article/pii/S2590048X20300467
work_keys_str_mv	AT jayakaranpachiyappan preparationandcharacterizationofznomgoandznomgohybridnanomaterialsusinggreenchemistryapproach AT nirmalagnanasundaram preparationandcharacterizationofznomgoandznomgohybridnanomaterialsusinggreenchemistryapproach AT govindarajanlakshmanarao preparationandcharacterizationofznomgoandznomgohybridnanomaterialsusinggreenchemistryapproach
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Preparation and characterization of ZnO, MgO and ZnO–MgO hybrid nanomaterials using green chemistry approach

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