| Title: | "Sago cycas-based hierarchical-structured porous carbon for adsorption of acetone vapour: preparation, characterization and performance" |
| Author(s): | Cheng C; Liu F; Shao Z; Dou S; Zhong L; Zheng Y; |
| Address: | "CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China. CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China. Xiamen Key Laboratory of Gaseous Pollutant Control Materials, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China. University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China. Xiamen Institute of Technology, 1251 Sunban South Road, Xiamen, 361021, China. CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China. ymzheng@iue.ac.cn. CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China. ymzheng@iue.ac.cn. Xiamen Key Laboratory of Gaseous Pollutant Control Materials, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China. ymzheng@iue.ac.cn. University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China. ymzheng@iue.ac.cn" |
| Journal Title: | Environ Sci Pollut Res Int |
| DOI: | 10.1007/s11356-021-17158-2 |
| ISSN/ISBN: | 1614-7499 (Electronic) 0944-1344 (Linking) |
| Abstract: | "The porous structure and oxygen-containing functional groups of carbon materials play important roles in the adsorption of volatile organic compounds (VOCs). In this study, hierarchical-structured porous carbons (HSPCs) with a large specific surface area and abundant oxygen-containing functional groups were prepared from sago cycas without a template or post-processing for acetone (one of the most common VOCs) adsorption. The micropore volume (0.41-1.15 cm(3) g(-1)) and oxygen-containing functional groups (0.3-1.92 mmol g(-1)) of HSPCs were manipulated by adjusting the activation temperature. Static adsorption data showed that the HSPC activated at 600 degrees C (HSPC-600) was superior for acetone adsorption, and a maximum adsorption capacity of 3.75 mmol g(-1) was achieved at 25 degrees C and 0.1 kPa. Breakthrough curves and cyclic adsorption-desorption tests demonstrated the dynamic adsorption capacity and regeneration performance of HSPC-600 were excellent as well. The adsorption isotherms were well described by Langmuir and Langmuir-Freundlich models, indicating the adsorption of acetone on HSPCs is a monolayer adsorption process. Due to electrostatic interaction, hydrogen bond and van der Waals forces between acetone molecules and oxygen-containing functional groups, the adsorption capacity of HSPCs for acetone was significantly improved at low relative pressure. This study may provide a peculiar insight into the development of high-performance acetone adsorbent" |
| Keywords: | Acetone/chemistry Adsorption *Carbon/chemistry *Cycas Porosity Acetone Dynamic adsorption Functional groups Hierarchical-structured porous carbon Volatile organic compounds (VOCs); |
| Notes: | "MedlineCheng, Cunxi Liu, Fang Shao, Zaidong Dou, Shuai Zhong, Lubin Zheng, Yuming eng 51978639/ntional natural science foundation of china/ Germany 2021/10/29 Environ Sci Pollut Res Int. 2022 Mar; 29(13):19165-19175. doi: 10.1007/s11356-021-17158-2. Epub 2021 Oct 28" |
