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Research on Adsorption of Phenol by Hydrophobic Cellulose Flexible Gel Materials
Received:September 29, 2022  
DOI：10.11980/j.issn.0254-508X.2023.06.004
Key Words:cellulose  phenol wastewater  flexible gel  adsorption
Fund Project:国家自然科学基金项目（21878026）；2020工信部环保安全技术服务平台项目（2020-0107-3-1）；江苏省科技副总项目（FZ20211438）；常州市重点研发计划项目（CE20205051）。
Author NameAffiliationPostcode
CHEN Ziwei School of Environmental Science and Engineering， Changzhou University， Changzhou， Jiangsu Province， 213164 213164
OU Hongxiang* School of Environmental Science and Engineering， Changzhou University， Changzhou， Jiangsu Province， 213164 213164
SUN Weikai School of Environmental Science and Engineering， Changzhou University， Changzhou， Jiangsu Province， 213164 213164
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Abstract:Cellulose flexible gel materials （MPCs） were prepared with cellulose powder and acrylamide as monomers， potassium persulfate as initiator and N，N-methylene diacrylamide as crosslinking agent. Then hydrophobic cellulose flexible gel materials （T-MPCs） were prepared via hydrophobic modification for MPCs and used to adsorb and separate phenol in solution. The influence factors， adsorption machanism of phenol adsorption by T-MPCs were studied by changing the pH value of solution， initial concentration of phenol solution， and adsorbent dosage. The results showed that T-MPCs were flexible gel materials with porous surface. The equilibrium adsorption capacity of phenol by T-MPCs was 148.9 mg/g， when the adsorption temperature was 25 ℃， pH value of solution 7.0， adsorption time 360 min， initial concentration of phenol 200 mg/L， and T-MPCs dosage 1000 mg/L. The adsorption process was in accordance with the pseudo-second order kinetic and Freundlich isothermal adsorption models. The adsorption capacity of phenol by T-MPCs decreased by 15.2% after 5 cycles of regeneration， indicating it is of good regeneration ability.
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