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Research Progress in the Preparation of Lignin-based Adsorbents
Received:July 19, 2020  
DOI：10.11980/j.issn.0254-508X.2021.01.014
Key Words:lignin  adsorbent  heavy metal ion  industrial wastewater  wastewater treatment
Fund Project:山东省自然科学基金（ZR2017LC016）。
Author NameAffiliationPostcode
ZHANG Zhaohui State Key Lab of Bio-based Material and Green Papermaking，Qilu University of Technology （Shandong Academy of Sciences），Ji’nan，Shandong Province， 250353 250353
WU Chaojun State Key Lab of Bio-based Material and Green Papermaking，Qilu University of Technology （Shandong Academy of Sciences），Ji’nan，Shandong Province， 250353 250353
YU Dongmei State Key Lab of Bio-based Material and Green Papermaking，Qilu University of Technology （Shandong Academy of Sciences），Ji’nan，Shandong Province， 250353 250353
DING Qijun State Key Lab of Bio-based Material and Green Papermaking，Qilu University of Technology （Shandong Academy of Sciences），Ji’nan，Shandong Province， 250353 250353
ZHU Yachong State Key Lab of Bio-based Material and Green Papermaking，Qilu University of Technology （Shandong Academy of Sciences），Ji’nan，Shandong Province， 250353 250353
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Abstract:Lignin is a highly aromatic hydrocarbon compound with a three-dimensional amorphous structure. The preparation of lignin-based adsorbents using lignin as raw material is one of the important ways of lignin value-added utilization. Biochar， microspheres， gels and other types of lignin-based adsorbents have been prepared through modification， compounding， etc. and have wide applications in industrial wastewater treatment. This article reviews the research progress of the unmodified lignin adsorbents such as lignin fibration， preparation of activated carbon， and magnetization， and the modified lignin-based adsorbents treated with amination， sulfonation， esterification， grafting， copolymerization， etc， as well as the composite lignin-based adsorbent materials prepared by compounding with of glycan， chitin， TiO2， SiO2 and other substances. Finally the potential application of lignin-based adsorbents are prospected.
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