Novel wet pyrolysis providing simultaneous conversion and activation to produce surface-functionalized biochars for cadmium remediation

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成果类型：

期刊论文

作者：

Zhou, Nan;Wang, Yifan;Yao, Denghui;Li, Shikai;Tang, Jiajie;...

通讯作者：

Zhong, Mei-e;Zhou, Zhi

作者机构：

[Zhong, Mei-e; Zhong, ME; Zhou, Zhi; Li, Shikai; Zhu, Xiaoyu; Shen, Da; Huang, Liyang; Zhou, Nan; Yao, Denghui; Wang, Yifan; Tang, Jiajie] Hunan Agr Univ, Coll Sci, Furong Rd, Changsha 410128, Hunan, Peoples R China.

[Zhong, Mei-e; Zhou, Nan; Zhou, Zhi; Wang, Yifan] Hunan Agr Univ, Hunan Engn Res Ctr Biochar, Changsha 410128, Hunan, Peoples R China.

[Zhou, Nan; Zhou, Zhi; Yao, Denghui] Hunan Agr Univ, Hunan Opt Agr Engn Technol Res Ctr, Changsha, Hunan, Peoples R China.

通讯机构：

[Zhong, ME; Zhou, Z] H

Hunan Agr Univ, Coll Sci, Furong Rd, Changsha 410128, Hunan, Peoples R China.

语种：

英文

关键词：

Activation energy;Adsorption;Cadmium compounds;Carbonization;Heavy metals;Hydrogen bonds;Pyrolysis;Sodium Carbonate;Sodium compounds;Soil pollution control;Acidic catalysts;Adsorption properties;Bio chars;Biochar adsorbents;Cadmium adsorption;Heavy metal remediation;Removal efficiencies;Surface functional groups;Ion exchange

期刊：

Journal of Cleaner Production

ISSN：

0959-6526

年：

2019

卷：

221

页码：

63-72

DOI：

10.1016/j.jclepro.2019.02.176

基金类别：

The authors would like to gratefully acknowledge research grants from the National Natural Science Foundation of China (grant numbers 51703061 , 21706060 , 51504212 ), the Natural Science Foundation of Hunan Province , China (grant numbers 2017JJ3103 , 2018JJ3214 ), and the Platform Program of Hunan Provincial Department of Science (grant number 2018TP2003 ). We thank Laura Kuhar, PhD, from Liwen Bianji, Edanz Group China ( www.liwenbianji.cn/ac ), for editing the English text of a draft of this manuscript.

机构署名：

本校为第一且通讯机构

院系归属：

理学院

摘要：

The enhancement of surface functional groups of biochar is essential to improving the biochar contaminant adsorption. Current pyrolysis methods that are accompanied by activation are energy consuming and costly. Herein, a novel wet-pyrolysis system that was carried out in open air, with simultaneous conversion and modification to produce an effective biochar adsorbent, is described. Within this system, the surface of the biochar was oxidized partially to produce sufficient functional groups at the surface, whereas carbonization of the biomass (...

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Novel wet pyrolysis providing simultaneous conversion and activation to produce surface-functionalized biochars for cadmium remediation

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