Title: | Alkali promoted the adsorption of toluene by adjusting the surface properties of lignin-derived carbon fibers |
Author(s): | Song M; Yu L; Song B; Meng F; Tang X; |
Address: | "Ministry of Education of Key Laboratory of Energy Thermal Conversion and Control, School of Energy and Environment, Southeast University, Nanjing, 210096, China. minsong@seu.edu.cn. Ministry of Education of Key Laboratory of Energy Thermal Conversion and Control, School of Energy and Environment, Southeast University, Nanjing, 210096, China" |
Journal Title: | Environ Sci Pollut Res Int |
DOI: | 10.1007/s11356-019-05456-9 |
ISSN/ISBN: | 1614-7499 (Electronic) 0944-1344 (Linking) |
Abstract: | "The lignin-based carbon fibers were prepared by electrospinning followed by stabilization, carbonization, and activation (i.e., steam activation, one-step KOH activation, and metal activation). The effect of carbonization temperature on prepared carbon fibers (CFs) was investigated. As a result, 800 degrees C is the most suitable carbonization temperature because the prepared carbon fibers possess greater specific surface area and pore volume. With the help of various characterization methods, the structural characteristics of the activated carbon fibers (ACFs) prepared by the three activation methods and the adsorption performance of toluene were compared. It was observed that the activated carbon fibers prepared by KOH one-step activation method (ACFK) exhibited higher specific surface area (1147.16 m(2)/g) and greater toluene adsorption (463 mg/g). Particularly, abundant microporous structures and surface functional groups play a vital role in the adsorption process. Further, the adsorption performance of toluene onto ACFK was further investigated in a gas-phase dynamic adsorption system and the results showed that ACFK has great potential application in adsorption of volatile organic compounds" |
Keywords: | Adsorption Alkalies/*chemistry Carbon/*chemistry Carbon Fiber Charcoal Lignin/*chemistry Surface Properties Temperature Toluene/*chemistry/metabolism Volatile Organic Compounds Activated carbon fibers Activation Electrospinning Lignin; |
Notes: | "MedlineSong, Min Yu, Lei Song, Bing Meng, Fanyue Tang, Xinhong eng 2018YFC1803100/National Key R&D Program of China/ BK20181142/Natural Science Foundation of Jiangsu Province/ Germany 2019/06/04 Environ Sci Pollut Res Int. 2019 Aug; 26(22):22284-22294. doi: 10.1007/s11356-019-05456-9. Epub 2019 May 31" |