The application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution

Recently, organic contaminants from textile and dye industry have adversely affected on human’s health and living things. Hence, the development of effective contaminated water treatment is one of the most crucial tasks. Expanded Graphite (EG) has been considered as efficient platforms to remove of...

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Autores principales:	Ngoc Bich Hoang, Thi Thuong Nguyen, Tien Sy Nguyen, Thi Phuong Quynh Bui, Long Giang Bach
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2019
Materias:	adsorption expanded graphite dye-contaminated water microwave-assisted technique Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/612ed88f9e904515bdf874af4129925e
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spelling	oai:doaj.org-article:612ed88f9e904515bdf874af4129925e2021-11-04T15:51:55ZThe application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution2331-191610.1080/23311916.2019.1584939https://doaj.org/article/612ed88f9e904515bdf874af4129925e2019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/23311916.2019.1584939https://doaj.org/toc/2331-1916Recently, organic contaminants from textile and dye industry have adversely affected on human’s health and living things. Hence, the development of effective contaminated water treatment is one of the most crucial tasks. Expanded Graphite (EG) has been considered as efficient platforms to remove of organic dyes from aqueous solution due to its excellent performance. The main objective of the present work is to investigate adsorption behavior of methylene blue (MB) and Congo Red (CO) on exfoliated graphite fabricated using flake graphite from Yen Bai province. The exfoliation of graphite was carried out using potassium permanganate and perchloric acid as oxidant agent and anhydride acetic as intercalating agent via microwave-assisted technique. The properties of EG were characterized by X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy and nitrogen adsorption/desorption analysis. In batch adsorption experiments, various factors including initial dye concentration (50–600 ppm), adsorbent dosage (0.5–3 g/L), contact time (10–120 min) and pH of solution (4–10) were also studied. It is found that as-prepared EG provided high removal efficiency and fast adsorption rate for MB and CO. The maximum adsorption capacity of EG for CO and MB was found at 201.21 and 47.62 mg/g, respectively. These results demonstrate that the as-synthesized EG appears as an efficient and low-cost platform for remediation of colored effluents via adsorption route.Ngoc Bich HoangThi Thuong NguyenTien Sy NguyenThi Phuong Quynh BuiLong Giang BachTaylor & Francis Grouparticleadsorptionexpanded graphitedye-contaminated watermicrowave-assisted techniqueEngineering (General). Civil engineering (General)TA1-2040ENCogent Engineering, Vol 6, Iss 1 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	adsorption expanded graphite dye-contaminated water microwave-assisted technique Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	adsorption expanded graphite dye-contaminated water microwave-assisted technique Engineering (General). Civil engineering (General) TA1-2040 Ngoc Bich Hoang Thi Thuong Nguyen Tien Sy Nguyen Thi Phuong Quynh Bui Long Giang Bach The application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution
description	Recently, organic contaminants from textile and dye industry have adversely affected on human’s health and living things. Hence, the development of effective contaminated water treatment is one of the most crucial tasks. Expanded Graphite (EG) has been considered as efficient platforms to remove of organic dyes from aqueous solution due to its excellent performance. The main objective of the present work is to investigate adsorption behavior of methylene blue (MB) and Congo Red (CO) on exfoliated graphite fabricated using flake graphite from Yen Bai province. The exfoliation of graphite was carried out using potassium permanganate and perchloric acid as oxidant agent and anhydride acetic as intercalating agent via microwave-assisted technique. The properties of EG were characterized by X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy and nitrogen adsorption/desorption analysis. In batch adsorption experiments, various factors including initial dye concentration (50–600 ppm), adsorbent dosage (0.5–3 g/L), contact time (10–120 min) and pH of solution (4–10) were also studied. It is found that as-prepared EG provided high removal efficiency and fast adsorption rate for MB and CO. The maximum adsorption capacity of EG for CO and MB was found at 201.21 and 47.62 mg/g, respectively. These results demonstrate that the as-synthesized EG appears as an efficient and low-cost platform for remediation of colored effluents via adsorption route.
format	article
author	Ngoc Bich Hoang Thi Thuong Nguyen Tien Sy Nguyen Thi Phuong Quynh Bui Long Giang Bach
author_facet	Ngoc Bich Hoang Thi Thuong Nguyen Tien Sy Nguyen Thi Phuong Quynh Bui Long Giang Bach
author_sort	Ngoc Bich Hoang
title	The application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution
title_short	The application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution
title_full	The application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution
title_fullStr	The application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution
title_full_unstemmed	The application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution
title_sort	application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution
publisher	Taylor & Francis Group
publishDate	2019
url	https://doaj.org/article/612ed88f9e904515bdf874af4129925e
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The application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution

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