| Title: | Remarkable adsorption performance of MOF-199 derived porous carbons for benzene vapor |
| Author(s): | Wang C; Yin H; Tian P; Sun X; Pan X; Chen K; Chen WJ; Wu QH; Luo S; |
| Address: | "School of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, China; College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China. School of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, China. School of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, China. Electronic address: sun061302125@163.com. College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China. School of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, China. Electronic address: chenwenjie@qztc.edu.cn. School of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, China; College of Mechanical and Energy Engineering, Jimei University, Xiamen, 361021, China" |
| DOI: | 10.1016/j.envres.2020.109323 |
| ISSN/ISBN: | 1096-0953 (Electronic) 0013-9351 (Linking) |
| Abstract: | "Volatile organic compounds (VOCs) are perceived as serious pollutants due to their great threat to both environment and human health. Recovery and removal of VOCs is of great significance. Herein, novel MOF-199 derived porous carbon materials (MC-T-n) were prepared by using MOF-199 as precursor, glucose as additional carbon source and KOH as activator, and then characterized. Adsorption performance of MC-T-n materials for benzene vapor was investigated. Isotherms of MC-T-n samples towards benzene and water vapor were measured. The adsorption selectivities of benzene/water were estimated by DIH (difference of the isosteric heats) equation. Results indicated that BET surface area and pore volume of MC-T-n materials reached separately 2320 m(2)/g and 1.05 m(3)/g. Benzene adsorption capacity of MC-T-n materials reached as high as 12.8 mmol/g at 25 degrees C, outperforming MOF-199 and some conventional adsorbents. Moreover, MC-T-n materials presented type-V isotherms of water vapor, suggesting their excellent water resistance. The isosteric heats of benzene adsorption on MC-500-6 were much greater than that of water adsorption, leading to a preferential adsorption for C(6)H(6) over H(2)O. The adsorption selectivity of C(6)H(6)/H(2)O on MC-500-6 reached up to 16.3 superior to some previously reported MOFs. Therefore, MC-500-6 was a promising candidate for VOC adsorption and seperation. This study provides a strong foundation for MOF derived porous carbons as adsorbents for VOC removal" |
| Keywords: | Adsorption *Air Pollution/prevention & control *Benzene/chemistry *Carbon Gases Porosity Benzene Mof-199 Porous carbon Voc; |
| Notes: | "MedlineWang, Chenpeng Yin, Hang Tian, Pengjie Sun, Xuejiao Pan, Xiaoyang Chen, Kongfa Chen, Wen-Jie Wu, Qi-Hui Luo, Shuiyuan eng Research Support, Non-U.S. Gov't Netherlands 2020/03/08 Environ Res. 2020 May; 184:109323. doi: 10.1016/j.envres.2020.109323. Epub 2020 Feb 29" |
