Hierarchical porous carbon with an ultrahigh surface area for high-efficient iodine capture: Insights into adsorption mechanisms through experiments, simulations and modeling

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成果类型：

期刊论文

作者：

Wu, Yi;Guo, Yang;Su, Rongkui;Ma, Xiancheng;Wu, Qingding;...

通讯作者：

Xiancheng Ma<&wdkj&>Qingding Wu<&wdkj&>Liqing Li

作者机构：

[Wu, Yi; Wu, Qingding; Ma, Xiancheng] Cent South Univ Forestry & Technol, Coll Mech & Elect Engn, Changsha 410083, Hunan, Peoples R China.

[Li, Liqing; Zeng, Zheng; Guo, Yang] Cent South Univ, Sch Energy Sci & Engn, Changsha 410083, Hunan, Peoples R China.

[Su, Rongkui] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410083, Hunan, Peoples R China.

[Yao, Xiaolong] Beijing Technol & Business Univ, Dept Environm Sci & Engn, 11 Fuchenglu, Beijing 100048, Peoples R China.

[Wang, Shaobin] Univ Adelaide, Sch Chem Engn & Adv Mat, 108 King William St, Adelaide, SA 5005, Australia.

通讯机构：

[Xiancheng Ma; Qingding Wu] C

[Liqing Li] S

College of Mechanical & Electrical Engineering, Central South University of Forestry and Technology, Changsha 410083, Hunan, China<&wdkj&>School of Energy Science and Engineering, Central South University, Changsha 410083, Hunan, China

语种：

英文

关键词：

Porous carbon;Pore structure;Nitrogen and oxygen groups;Iodine capture

期刊：

Separation and Purification Technology

ISSN：

1383-5866

年：

2022

卷：

303

页码：

122237

DOI：

10.1016/j.seppur.2022.122237

基金类别：

Scientific Research Foundation for Talented Scholars of CSUFT University; National Nature Science Foundation of China; China Postdoctoral Science Foundation; [2019YJ019]; [52000183]; [2020M683665XB]

机构署名：

本校为第一机构

院系归属：

机电工程学院

环境科学与工程学院

摘要：

The removal of radioactive iodine species during nuclear accidents and nuclear fuel reprocessing is crucial to nuclear safety, public health and environmental protection. Here, a series of nitrogen-doped porous carbon derived from benzimidazole (NBCs) with well-developed pore structure were prepared. During KOH activation, the potassium salt formed at 600-700 degrees C is mainly K2CO3 and K2O, and the pore size obtained is mainly microporous. With the temperature increases, the K2CO3 and K2O are converted to KOCN, which generates mesopores. NBCs were subsequently tested for gaseous iodine and ...

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Hierarchical porous carbon with an ultrahigh surface area for high-efficient iodine capture: Insights into adsorption mechanisms through experiments, simulations and modeling

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