摘要
Aerogel composed of polyaniline/cellulose nanofiber(PANI/CNF)was synthesized by a two-step method and used as an adsorbent to remove Cr(Ⅵ)from wastewater in this study.Adsorption results showed that PANI/CNF aerogel adsorbent exhibited a high adsorption capacity of 298.5 mg·g-1 for Cr(Ⅵ)(318 K,pH=2.0).Meanwhile,the adsorption process can be fitted well with the pseudo-second-order model and the Freundlich model.Moreover,the Cr(Ⅵ)removal efficiency of the adsorbent remained above 85%after ten recycling experiments,indicating that PANI/CNF aerogel had excellent stability and reusability.Therefore,PANI/CNF aerogel showed a potential application in the treatment of chromium-containing wastewater.
作者
LI Jiaqiang
LIAO Yaozu
LÜWei
YU Junrong
李加强;廖耀祖;吕伟;于俊荣(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Shanghai 201620,China;College of Materials Science and Engineering,Donghua University,Shanghai 201620,China)
基金
National Natural Science Foundation of China(Nos.52073046,51873036,and 51673039)
Fundamental Research Funds for the Central Universities,China(Nos.2232020D-08 and 2232019A3-01)
Natural Science Foundation of Shanghai,China(No.19ZR1470900)
Shanghai Shuguang Program,China(No.19SG28)
International Joint Laboratory for Advanced Fiber and Low-Dimension Materials,China(No.18520750400)
Initial Research Funds for Young Teachers of Donghua University,China(No.106-07-0053089)。
