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| Adsorption of Aniline from Aqueous Solution by Lignin-based Magnetic Mesoporous Activated Carbon |
| Received:March 24, 2020 |
| DOI：10.11981/j.issn.1000-6842.2021.02.24 |
| Key Words:alkali lignin;activated carbon;magnetic;adsorption;aniline |
| Fund Project:福建省高校产学合作项目（2019H6008）；国家自然科学基金项目（21577018）。 |
| Author Name | Affiliation | Postcode | | WU Qiong | College of Environment and Resources， Fuzhou University， Fuzhou， Fujian Province， 350116
Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology， Fuzhou， Fujian Province， 350116 | 350116 | | LIU Yifan | College of Environment and Resources， Fuzhou University， Fuzhou， Fujian Province， 350116
Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology， Fuzhou， Fujian Province， 350116 | 350116 | | YE Xiaoxia | College of Environment and Resources， Fuzhou University， Fuzhou， Fujian Province， 350116
Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology， Fuzhou， Fujian Province， 350116 | 350116 | | LIU Minghua | College of Environment and Resources， Fuzhou University， Fuzhou， Fujian Province， 350116
Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology， Fuzhou， Fujian Province， 350116 | 350116 |
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| Abstract: |
| Magnetic mesoporous activated carbon （LMAC） was prepared using alkaline lignin， zinc nitrate， and ferric nitrate as raw materials. The performance and structure of LMAC were characterized by SEM， VSM， etc. And its adsorption behavior of aniline in aqueous solution was also studied. The results indicated that the LMAC had a BET specific surface area of 254.6 m2/g， and a pore diameter distribution range of 2~50 nm. It was noteworthy that the saturation magnetization of LMAC was 24.64 emu/g， showing excellent magnetic properties and good recoverability. The aniline adsorption capacity of LMAC was 53.68 mg/g when pH value and adsorption time were 3 and 100 min， respectively. The adsorption process of aniline by LMAC was mainly physical adsorption which conformed to the pseudo-second-order adsorption kinetics. The adsorption regeneration experiment indicated that after 4 times of recycling， the analytical rate of LMAC still reached up to 83.2%， exhibiting an ideal recovery performance. |
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