Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis

Chitin-char is obtained from fast pyrolysis of chitin. To obtain the maximum surface area, chitin-char is treated by nitric acid. Then, a kind of new arsenic removal bio-material is prepared by loading Ca(OH)<sub>2</sub> on the char (called Ca(OH)<sub>2</sub>-char). IR spectr...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Zhiguang Yang, Gaojun Yan, Zhiwei Song, Junzheng Zhang, Chenlong Wang, Zhisheng Yu, Zhihui Bai, Guoqiang Zhuang, Feng Liang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	bio-materials arsenic adsorption water treatment Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/43e383e6585345d29e03e6d736b913c3
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:43e383e6585345d29e03e6d736b913c3
record_format	dspace
spelling	oai:doaj.org-article:43e383e6585345d29e03e6d736b913c32021-11-11T19:52:19ZStudy on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis10.3390/w132129442073-4441https://doaj.org/article/43e383e6585345d29e03e6d736b913c32021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/2944https://doaj.org/toc/2073-4441Chitin-char is obtained from fast pyrolysis of chitin. To obtain the maximum surface area, chitin-char is treated by nitric acid. Then, a kind of new arsenic removal bio-material is prepared by loading Ca(OH)<sub>2</sub> on the char (called Ca(OH)<sub>2</sub>-char). IR spectroscopy before and after char treatment reveal at least three distinct patterns of peak changes. An adsorption study is performed at different doses, pHs, and coexisting ions in the batch mode. The adsorption kinetics follows two first-order equations. Kinetic studies yield an optimum equilibrium time of 2 h with an adsorbent dose of 0.4 g/L and concentration of 10 mg/L. Using only 0.4 g/L of carbon, the maximum removal capacity is about 99.8%. The result indicates that the Ca(OH)<sub>2</sub>-char has a high adsorption capacity in the process of removing arsenic (III).Zhiguang YangGaojun YanZhiwei SongJunzheng ZhangChenlong WangZhisheng YuZhihui BaiGuoqiang ZhuangFeng LiangMDPI AGarticlebio-materialsarsenicadsorptionwater treatmentHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 2944, p 2944 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bio-materials arsenic adsorption water treatment Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	bio-materials arsenic adsorption water treatment Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Zhiguang Yang Gaojun Yan Zhiwei Song Junzheng Zhang Chenlong Wang Zhisheng Yu Zhihui Bai Guoqiang Zhuang Feng Liang Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis
description	Chitin-char is obtained from fast pyrolysis of chitin. To obtain the maximum surface area, chitin-char is treated by nitric acid. Then, a kind of new arsenic removal bio-material is prepared by loading Ca(OH)<sub>2</sub> on the char (called Ca(OH)<sub>2</sub>-char). IR spectroscopy before and after char treatment reveal at least three distinct patterns of peak changes. An adsorption study is performed at different doses, pHs, and coexisting ions in the batch mode. The adsorption kinetics follows two first-order equations. Kinetic studies yield an optimum equilibrium time of 2 h with an adsorbent dose of 0.4 g/L and concentration of 10 mg/L. Using only 0.4 g/L of carbon, the maximum removal capacity is about 99.8%. The result indicates that the Ca(OH)<sub>2</sub>-char has a high adsorption capacity in the process of removing arsenic (III).
format	article
author	Zhiguang Yang Gaojun Yan Zhiwei Song Junzheng Zhang Chenlong Wang Zhisheng Yu Zhihui Bai Guoqiang Zhuang Feng Liang
author_facet	Zhiguang Yang Gaojun Yan Zhiwei Song Junzheng Zhang Chenlong Wang Zhisheng Yu Zhihui Bai Guoqiang Zhuang Feng Liang
author_sort	Zhiguang Yang
title	Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis
title_short	Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis
title_full	Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis
title_fullStr	Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis
title_full_unstemmed	Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis
title_sort	study on adsorption of as(iii) by a new bio-material from chitin pyrolysis
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/43e383e6585345d29e03e6d736b913c3
work_keys_str_mv	AT zhiguangyang studyonadsorptionofasiiibyanewbiomaterialfromchitinpyrolysis AT gaojunyan studyonadsorptionofasiiibyanewbiomaterialfromchitinpyrolysis AT zhiweisong studyonadsorptionofasiiibyanewbiomaterialfromchitinpyrolysis AT junzhengzhang studyonadsorptionofasiiibyanewbiomaterialfromchitinpyrolysis AT chenlongwang studyonadsorptionofasiiibyanewbiomaterialfromchitinpyrolysis AT zhishengyu studyonadsorptionofasiiibyanewbiomaterialfromchitinpyrolysis AT zhihuibai studyonadsorptionofasiiibyanewbiomaterialfromchitinpyrolysis AT guoqiangzhuang studyonadsorptionofasiiibyanewbiomaterialfromchitinpyrolysis AT fengliang studyonadsorptionofasiiibyanewbiomaterialfromchitinpyrolysis
_version_	1718431404466896896

Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis

Ejemplares similares