In situ modification provided by a novel wet pyrolysis system to enhance surface properties of biochar for lead immobilization

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成果类型：

期刊论文

作者：

Zhou, Nan;Wang, Yifan;Huang, Liyang;Yu, Jingang;Chen, Huanli;...

通讯作者：

Zhong, Mei-e;Zhou, Zhi

作者机构：

[Yu, Jingang; Zhong, Mei-e; Chen, Huanli; Lu, Xiangyang; Huang, Liyang; Zhou, Nan; Xu, Fengjuan; Zhou, Zhi; Wang, Yifan; Tang, Jiajie] Hunan Agr Univ, Hunan Engn Res Ctr Biochar, Changsha 410128, Hunan, Peoples R China.

[Zhou, Nan; Xu, Fengjuan; Zhou, Zhi; Wang, Yifan; Tang, Jiajie] Hunan Agr Univ, Hunan Opt Agr Engn Technol Res Ctr, Changsha, Hunan, Peoples R China.

[Yu, Jingang] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.

[Zhong, ME; Zhou, Zhi] Nongda Rd 1, Changsha, Hunan, Peoples R China.

通讯机构：

[Zhong, ME; Zhou, Z] N

Nongda Rd 1, Changsha, Hunan, Peoples R China.

语种：

英文

关键词：

Biochar;Lead immobilization;Surface functional groups;Surface modification;Wet pyrolysis

期刊：

Colloids and Surfaces A: Physicochemical and Engineering Aspects

ISSN：

0927-7757

年：

2019

卷：

570

页码：

39-47

DOI：

10.1016/j.colsurfa.2019.03.012

基金类别：

The authors would like to gratefully acknowledge research grants from National Natural Science Foundation of China (Grant No. 51703061, 21706060, 51504212), Natural Science Foundation of Hunan Province, China (Grant No. 2017JJ3103, 2018JJ3214), Double first-class construction project of Hunan Agricultural University (Grand No. SYL201802002).

机构署名：

本校为第一机构

摘要：

Surface modification of biochar is significant to obtain more functionalized material for contaminants immobilization. In situ modification, modifying the biochar while the conversion process, was applied by a novel wet pyrolysis system. By using phosphoric acid as working medium, liquid/air interface was created to introduce low content of oxygen, under the control of appropriately settled reaction temperature. Followed with the addition of sodium carbonate to neutralize the system and increase mineral species, effective biochar adsorbent atta...

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In situ modification provided by a novel wet pyrolysis system to enhance surface properties of biochar for lead immobilization

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