Nitrogen/oxygen doped hierarchical porous carbon with adjustable pore structure for efficient adsorption, separation, and enhancement mechanism of methanol and acetone azeotropes: Experimental and theoretical study

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期刊论文

作者：

Xu, Wenjun;Guo, Yang;Ma, Xiancheng;Su, Rongkui;Zhou, Yihui;...

通讯作者：

Ma, XC;Li, LQ;Su, RK

作者机构：

[Ma, Xiancheng; Xu, Wenjun] Cent South Univ Forestry & Technol, Coll Mech & Elect Engn, Changsha 410004, Hunan, Peoples R China.

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

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

[Zhou, Yihui] Aerosp Kaitian Environm Technol Co Ltd, Changsha 410100, Hunan, Peoples R China.

通讯机构：

[Li, LQ ; Su, RK ; Ma, XC ] C

Cent South Univ Forestry & Technol, Coll Mech & Elect Engn, Changsha 410004, Hunan, Peoples R China.

Cent South Univ, Sch Energy Sci & Engn, Changsha 410083, Hunan, Peoples R China.

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

语种：

英文

关键词：

Porous carbon;Acetone and methanol adsorption;Azeotrope separation;Pore structure;Nitrogen and oxygen groups

期刊：

Separation and Purification Technology

ISSN：

1383-5866

年：

2024

卷：

334

页码：

126093

DOI：

10.1016/j.seppur.2023.126093

基金类别：

Major program Natural Science Foun-dation of Hunan Province of China [2021JC0001]; National Nature Science Foundation of China [52000183]; Hunan Provincial Natural Science Foundation of China [2023JJ31010]; Hunan Province Envi-ronmental Protection Research Project [HBKYXM-2023038]; Natu-ral Science Foundation of Changsha [kq220815]

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本校为第一且通讯机构

院系归属：

机电工程学院

环境科学与工程学院

摘要：

The adsorption and separation of methanol and acetone are crucial for environmental protection and recycling. However, the separation of methanol and acetone azeotropes using carbon-based materials remains challenging, and the underlying mechanism is still unclear. Here, we propose the synthesis of porous carbon (NaOCs) using benzimidazole as a precursor and NaOH as an activator. With the increase of the proportion of NaOH and benzimidazole, the activation reaction was intensified, leading to the formation of numerous mesopores. NaOCs exhibit a maximum specific surface area (SBET) of 3084 m2/g...

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Nitrogen/oxygen doped hierarchical porous carbon with adjustable pore structure for efficient adsorption, separation, and enhancement mechanism of methanol and acetone azeotropes: Experimental and theoretical study

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