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Fabrication of cellulose nanocrystal composite filter papers for rapid and highly efficient removal of bacteria from aqueous solutions

  • Wei Chen
  • Fangming Chen
  • Gao Zhang
  • Xu Liu
  • Shu Kong
  • Wen Cai
  • Jian Wang
  • Liping Du
  • Chunsheng WuEmail author


Cellulose nanocrystal (CNC) composite filter papers were fabricated by a facile method, which consists of the bleaching and hydrolysis of fibers, and drop coating of filter papers with CNC solution. The filter properties of the composite filter papers were applied for the removal of bacteria from aqueous solutions. Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) were used to evaluate the bacteria removal performance of the CNC composite filter papers. It is indicated that the nanopores formed by nanoscale rod-like crystals contribute to the bacteria removal capacity of porous CNC nanocomposite filter papers. Overlapped five layers of the CNC composite filter papers displayed a rapid (0.12 L/min) and highly efficient removal (remove rate at ~ 100%) of bacteria from aqueous solutions. Due to their advantages of convenient preparation, sustainable materials and low cost, the CNC composite filter papers have promising prospects and potential applications in many fields concerning bacteria removal and water purification.

Graphic abstract


Cellulose nanocrystals Bacteria removal Filter papers Nanocomposite 



This work was financially supported in part by grants from the National Natural Science Foundation of China, China (Grant Nos. 51861145307, 31700859, 31661143030, and 31470956), the Doctoral Fund of Education Ministry of China, China (Grant No. 2018M633524), and the Fundamental Research Funds for the Central Universities, China.

Supplementary material

10570_2019_2620_MOESM1_ESM.docx (309 kb)
Supplementary material 1 (DOCX 309 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Wei Chen
    • 1
  • Fangming Chen
    • 1
  • Gao Zhang
    • 2
  • Xu Liu
    • 3
  • Shu Kong
    • 1
  • Wen Cai
    • 1
  • Jian Wang
    • 1
  • Liping Du
    • 1
  • Chunsheng Wu
    • 1
    Email author
  1. 1.Institute of Medical Engineering, Department of Biophysics, School of Basic Medical SciencesXi’an Jiaotong University Health Science CenterXi’anChina
  2. 2.School of PharmacyXi’an Jiaotong University Health Science CenterXi’anChina
  3. 3.Faculty of NursingXi’an Jiaotong University Health Science CenterXi’anChina

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