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Preparation of Nitrogen, Oxygen Co-modified Lignin-based Porous Resins and Its Efficient Adsorption of Dyes
Received:April 17, 2023  
DOI：10.11980/j.issn.0254-508X.2023.05.012
Key Words:lignin  hyper-cross-linked  amination  polymers  dyes  adsorption
Fund Project:国家重点研发计划（2019YFE0114600）；国家自然科学基金青年项目（22208380）；湖南省自然科学基金青年项目（2021JJ41065）；中南林业科技大学人才引进科研启动金 （2019YJ029）。
Author NameAffiliationPostcode
LIU Dandan College of Materials Science and Engineering， Central South University of Forestry and Technology， Changsha， Hu’nan Province， 410004
Ministry of Forestry Bioethanol Research Center， Changsha， Hu’nan Province， 410004 		410004
SHAO Lishu* College of Materials Science and Engineering， Central South University of Forestry and Technology， Changsha， Hu’nan Province， 410004
Ministry of Forestry Bioethanol Research Center， Changsha， Hu’nan Province， 410004
Hunan International Joint Lab of Woody Biomass Conversion， Changsha， Hu’nan Province， 410004 		410004
LIU Na College of Materials Science and Engineering， Central South University of Forestry and Technology， Changsha， Hu’nan Province， 410004
Ministry of Forestry Bioethanol Research Center， Changsha， Hu’nan Province， 410004 		410004
WAN Huan’ai College of Materials Science and Engineering， Central South University of Forestry and Technology， Changsha， Hu’nan Province， 410004
Ministry of Forestry Bioethanol Research Center， Changsha， Hu’nan Province， 410004 		410004
SUN Renrui College of Materials Science and Engineering， Central South University of Forestry and Technology， Changsha， Hu’nan Province， 410004 410004
ZHAN Peng College of Materials Science and Engineering， Central South University of Forestry and Technology， Changsha， Hu’nan Province， 410004
Ministry of Forestry Bioethanol Research Center， Changsha， Hu’nan Province， 410004
Hunan International Joint Lab of Woody Biomass Conversion， Changsha， Hu’nan Province， 410004 		410004
ZHANG Lin College of Materials Science and Engineering， Central South University of Forestry and Technology， Changsha， Hu’nan Province， 410004
Ministry of Forestry Bioethanol Research Center， Changsha， Hu’nan Province， 410004
Hunan International Joint Lab of Woody Biomass Conversion， Changsha， Hu’nan Province， 410004 		410004
WU Zhiping College of Materials Science and Engineering， Central South University of Forestry and Technology， Changsha， Hu’nan Province， 410004
Ministry of Forestry Bioethanol Research Center， Changsha， Hu’nan Province， 410004
Hunan International Joint Lab of Woody Biomass Conversion， Changsha， Hu’nan Province， 410004 		410004
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Abstract:Lignin based resin ball precursor （B） was synthesized by suspension polymerization using organic solvent lignin （OL） extracted from acid exploded poplar wood as raw material， p-chloromethylstyrene （VBC） as monomer， and ethylene glycol dimethyl acrylate （EGDMA） as crosslinking agent. Friedel-Crafts reaction was carried out under Lewis acid catalyst to form a rigid super crosslinking network structure， resulting in high specific surface area and oxygen content of lignin based super crosslinked resin balls （HB）. The best adsorption effect of HB was aminated with diethylenetriamine （DETA） to obtain nitrogen oxygen co-modified lignin based porous resin （HAB）， which was used to remove rhodamine B （RhB） from water. The results showed that when the VBC addition was 2.0 g， HAB had the best adsorption performance for RhB. The Langmuir model fitted its maximum equilibrium adsorption capacity to be 213.7 mg/g. The kinetic fitting showed that its adsorption rate was mainly controlled by the diffusion process and could reach adsorption equilibrium within 150 min. The adsorption capacity of HAB increased with temperature， and its adsorption of RhB was a endothermic process.
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