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

Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan 467036, China
School of Environmental and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China
Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
Author to whom correspondence should be addressed.
Academic Editors: Laura Bulgariu, Wei Zhao, Xiaoyan Liu, Yukun Zhu and Feihu Mu
Water 2021, 13(21), 2944;
Received: 14 September 2021 / Revised: 13 October 2021 / Accepted: 14 October 2021 / Published: 20 October 2021
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)2 on the char (called Ca(OH)2-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)2-char has a high adsorption capacity in the process of removing arsenic (III). View Full-Text
Keywords: bio-materials; arsenic; adsorption; water treatment bio-materials; arsenic; adsorption; water treatment
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MDPI and ACS Style

Yang, Z.; Yan, G.; Song, Z.; Zhang, J.; Wang, C.; Yu, Z.; Bai, Z.; Zhuang, G.; Liang, F. Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis. Water 2021, 13, 2944.

AMA Style

Yang Z, Yan G, Song Z, Zhang J, Wang C, Yu Z, Bai Z, Zhuang G, Liang F. Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis. Water. 2021; 13(21):2944.

Chicago/Turabian Style

Yang, Zhiguang, Gaojun Yan, Zhiwei Song, Junzheng Zhang, Chenlong Wang, Zhisheng Yu, Zhihui Bai, Guoqiang Zhuang, and Feng Liang. 2021. "Study on Adsorption of As(III) by a New Bio-Material from Chitin Pyrolysis" Water 13, no. 21: 2944.

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