Characterization of humic acids from original coal and its oxidization production

Abstract Five coal samples obtained from Chinese coal-producing areas were oxidized by hydrogen peroxide (H2O2), and humic acids (HAs) were derived from original coal and its oxidizition samples. HAs were characterized by physical and chemical methods, between which was also comparison. Yield, ash,...

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Autores principales:	Shuangdui Yan, Naiyu Zhang, Juan Li, Yanan Wang, Yue Liu, Mengyao Cao, Qiuyan Yan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5880ac61f7c04fbd9eb783a63db50b63
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spelling	oai:doaj.org-article:5880ac61f7c04fbd9eb783a63db50b632021-12-02T18:46:58ZCharacterization of humic acids from original coal and its oxidization production10.1038/s41598-021-94949-02045-2322https://doaj.org/article/5880ac61f7c04fbd9eb783a63db50b632021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94949-0https://doaj.org/toc/2045-2322Abstract Five coal samples obtained from Chinese coal-producing areas were oxidized by hydrogen peroxide (H2O2), and humic acids (HAs) were derived from original coal and its oxidizition samples. HAs were characterized by physical and chemical methods, between which was also comparison. Yield, ash, aromaticity, molecular weight and functional group of HAs showed variance between original coals. While, yield, molecular weight, and the quantity of oxygen-containing groups of HAs increased more from coals oxidized with H2O2. However, the increase of oxygen-containing functional groups depended on original coals. For Yimin lignite, the oxidation of H2O2 could obviously improve the carboxyl group content of HAs, thus promoting the adsorption of nitrogen. This study demonstrated that oxidation of coal by using H2O2 was one pretreatment way to obtain and modify HAs which could be used as prerequisite and functional material in agricultural field.Shuangdui YanNaiyu ZhangJuan LiYanan WangYue LiuMengyao CaoQiuyan YanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shuangdui Yan Naiyu Zhang Juan Li Yanan Wang Yue Liu Mengyao Cao Qiuyan Yan Characterization of humic acids from original coal and its oxidization production
description	Abstract Five coal samples obtained from Chinese coal-producing areas were oxidized by hydrogen peroxide (H2O2), and humic acids (HAs) were derived from original coal and its oxidizition samples. HAs were characterized by physical and chemical methods, between which was also comparison. Yield, ash, aromaticity, molecular weight and functional group of HAs showed variance between original coals. While, yield, molecular weight, and the quantity of oxygen-containing groups of HAs increased more from coals oxidized with H2O2. However, the increase of oxygen-containing functional groups depended on original coals. For Yimin lignite, the oxidation of H2O2 could obviously improve the carboxyl group content of HAs, thus promoting the adsorption of nitrogen. This study demonstrated that oxidation of coal by using H2O2 was one pretreatment way to obtain and modify HAs which could be used as prerequisite and functional material in agricultural field.
format	article
author	Shuangdui Yan Naiyu Zhang Juan Li Yanan Wang Yue Liu Mengyao Cao Qiuyan Yan
author_facet	Shuangdui Yan Naiyu Zhang Juan Li Yanan Wang Yue Liu Mengyao Cao Qiuyan Yan
author_sort	Shuangdui Yan
title	Characterization of humic acids from original coal and its oxidization production
title_short	Characterization of humic acids from original coal and its oxidization production
title_full	Characterization of humic acids from original coal and its oxidization production
title_fullStr	Characterization of humic acids from original coal and its oxidization production
title_full_unstemmed	Characterization of humic acids from original coal and its oxidization production
title_sort	characterization of humic acids from original coal and its oxidization production
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5880ac61f7c04fbd9eb783a63db50b63
work_keys_str_mv	AT shuangduiyan characterizationofhumicacidsfromoriginalcoalanditsoxidizationproduction AT naiyuzhang characterizationofhumicacidsfromoriginalcoalanditsoxidizationproduction AT juanli characterizationofhumicacidsfromoriginalcoalanditsoxidizationproduction AT yananwang characterizationofhumicacidsfromoriginalcoalanditsoxidizationproduction AT yueliu characterizationofhumicacidsfromoriginalcoalanditsoxidizationproduction AT mengyaocao characterizationofhumicacidsfromoriginalcoalanditsoxidizationproduction AT qiuyanyan characterizationofhumicacidsfromoriginalcoalanditsoxidizationproduction
_version_	1718377681994645504

Characterization of humic acids from original coal and its oxidization production

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