SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2022, Vol. 46 ›› Issue (6): 194-206.DOI: 10.1016/j.cjche.2021.01.012

Previous Articles     Next Articles

Superhigh selective capture of volatile organic compounds exploiting cigarette butts-derived engineering carbonaceous adsorbent

Wenjian Zhu1, Xuhua Shen1, Rui Ou1, Manoj Murugesan1, Aihua Yuan1,2, Jianfeng Liu3, Xiaocai Hu3, Zhen Yang3, Ming Shen4, Fu Yang1,5   

  1. 1 School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2 Marine Equipment and Technology Institute, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    3 Shanghai Waigaoqiao Shipbuilding Co., Ltd, Shanghai 200137, China;
    4 School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 212003, China;
    5 Jiangsu Agricultural Hormone Engineering Technology Research Center Co. Ltd, Changzhou 213022, China
  • Received:2020-12-21 Revised:2021-01-22 Online:2022-07-20 Published:2022-06-28
  • Contact: Aihua Yuan,E-mail:aihua.yuan@just.edu.cn;Fu Yang,E-mail:fuyang@just.edu.cn
  • Supported by:
    This work was financially supported by the National Natural Science Foundation of China (51672114, 21908085, 21806077), Natural Science Foundation of Jiangsu Province (BK20190961), Foundation from Marine Equipment and Technology Institute for Jiangsu University of Science and Technology (HZ20190004), Postdoctoral Research Foundation of Jiangsu Province (2020Z291) and High-tech Ship Research Project of the Ministry of Industry and Information Technology (No. [2017] 614).

Superhigh selective capture of volatile organic compounds exploiting cigarette butts-derived engineering carbonaceous adsorbent

Wenjian Zhu1, Xuhua Shen1, Rui Ou1, Manoj Murugesan1, Aihua Yuan1,2, Jianfeng Liu3, Xiaocai Hu3, Zhen Yang3, Ming Shen4, Fu Yang1,5   

  1. 1 School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2 Marine Equipment and Technology Institute, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    3 Shanghai Waigaoqiao Shipbuilding Co., Ltd, Shanghai 200137, China;
    4 School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 212003, China;
    5 Jiangsu Agricultural Hormone Engineering Technology Research Center Co. Ltd, Changzhou 213022, China
  • 通讯作者: Aihua Yuan,E-mail:aihua.yuan@just.edu.cn;Fu Yang,E-mail:fuyang@just.edu.cn
  • 基金资助:
    This work was financially supported by the National Natural Science Foundation of China (51672114, 21908085, 21806077), Natural Science Foundation of Jiangsu Province (BK20190961), Foundation from Marine Equipment and Technology Institute for Jiangsu University of Science and Technology (HZ20190004), Postdoctoral Research Foundation of Jiangsu Province (2020Z291) and High-tech Ship Research Project of the Ministry of Industry and Information Technology (No. [2017] 614).

Abstract: Herein, we develop cost-efficient superhigh-performance of engineering carbonaceous adsorbent from cigarette butts using combined wet-impregnated and re-dispersed method of KOH, which optimizes the implant approach of activator, breaking the restriction of selective capture of toluene using traditional activated carbon. The Brunauer-Emmett-Teller (BET) surface area and pore volume of targeted adsorbent can attain 3088 m2·g-1 and 1.61 cm3·g-1, respectively, by optimizing the temperature-dependent synthetic factor effect of the adsorbent. The adsorption capacity of resultant adsorbent for presenting volatile benzene and toluene shows a positive correlation with increasing carbonization temperature of carbon precursor. Besides, we demonstrated the unsmoked and smoked butts derived adsorbents afford feeble difference in saturated adsorbed capacity of volatile organic compounds (VOCs). The highest adsorption capacity of sample CF-800 for benzene and toluene in CF group is as high as 1268.1 and 1181.6 mg·g-1 respectively, slightly higher than that of sample UF-800, but far outperforming reported other adsorbents. The predicted adsorption selectivity of CF-800 and UF-800 for C7H8/H2O (g) using the DIH (difference of isosteric heats) equation reach up to ca. 3800 and 7500 respectively, indicating the weak adsorbability of water vapor on the developed adsorbent and greater superiority of the smoked butts derived adsorbents in selective capture of VOCs at low relative humidity in the competitive adsorption process for practical mixed VOCs.

Key words: Purification, Activated carbon, Benzene, Toluene, Adsorbents, Selectivity

摘要: Herein, we develop cost-efficient superhigh-performance of engineering carbonaceous adsorbent from cigarette butts using combined wet-impregnated and re-dispersed method of KOH, which optimizes the implant approach of activator, breaking the restriction of selective capture of toluene using traditional activated carbon. The Brunauer-Emmett-Teller (BET) surface area and pore volume of targeted adsorbent can attain 3088 m2·g-1 and 1.61 cm3·g-1, respectively, by optimizing the temperature-dependent synthetic factor effect of the adsorbent. The adsorption capacity of resultant adsorbent for presenting volatile benzene and toluene shows a positive correlation with increasing carbonization temperature of carbon precursor. Besides, we demonstrated the unsmoked and smoked butts derived adsorbents afford feeble difference in saturated adsorbed capacity of volatile organic compounds (VOCs). The highest adsorption capacity of sample CF-800 for benzene and toluene in CF group is as high as 1268.1 and 1181.6 mg·g-1 respectively, slightly higher than that of sample UF-800, but far outperforming reported other adsorbents. The predicted adsorption selectivity of CF-800 and UF-800 for C7H8/H2O (g) using the DIH (difference of isosteric heats) equation reach up to ca. 3800 and 7500 respectively, indicating the weak adsorbability of water vapor on the developed adsorbent and greater superiority of the smoked butts derived adsorbents in selective capture of VOCs at low relative humidity in the competitive adsorption process for practical mixed VOCs.

关键词: Purification, Activated carbon, Benzene, Toluene, Adsorbents, Selectivity