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Study on the Removal Performance of CNF/Activated Carbon Paper-based Materials for Residual Chlorine in Water
Received:October 21, 2021  
DOI：10.11980/j.issn.0254-508X.2022.01.002
Key Words:cellulose nanofibril  activated carbon retention rate  removal rate towards residual chlorine  tensile index
Author NameAffiliationPostcode
GAO Tianliang State Key Lab of Bio-based Materials and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
ZHAO Chuanshan* State Key Lab of Bio-based Materials and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
LI Xia State Key Lab of Bio-based Materials and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
LI Hui State Key Lab of Bio-based Materials and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
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Abstract:A high-performance， green and degradable CNF/activated carbon paper-based material （CNF/ACPBM） was prepared using softwood pulp， activated carbon powder and polyester fiber as raw materials with adding cellulose nanofibril （CNF） to remove residual chlorine of water. The effects of addition amounts of CNF on activated carbon retention rate， physical performance， structural properties and removal rate towards residual chlorine of CNF/ACPBM were discussed in this study. When the addition amount of CNF was 2.0%， the activated carbon retention rate， wet and dry tensile index of CNF/ACPBM reached maximum value of 98.23%， 10.9 N·m/g and 1.31 N·m/g， respectively. Compared with the activated carbon paper-based material without CNF， it was increased by 7.0%， 53.5% and 27.2%， respectively.When the addition amount of CNF was 1.2%， the temperature was 30℃， the adsorption time was 30 min， and the initial concentration of residual chlorine was 4 mg/L， the removal rate of 0.5 g CNF/ACPBM towards residual chlorine was 93.72%， indicating the material had a significant effect on the removal of residual chlorine.
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