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Preparation of Cellulose-based Schiff Base-Cu Complex and Its Antibacterial Properties
  
DOI：10.11980/j.issn.0254-508X.2019.02.004
Key Words:cellulose  Schiff base  complex  antibacterial properties
Fund Project:国家自然科学基金项目(31170559);华南理工大学制浆造纸工程国家重点实验室开放基金项目(201730);陕西科技大学学科学术团队培养计划项目(2013SXD25)。
Author NameAffiliation
XU Yongjian1，2，* 1.College of Bioresources Chemical and Materials Engineering， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， National Demonstration Center for Experimental Light Chemistry Engineering Education， Key Lab of Paper Based Functional Materials of China National Light Industry， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021；2.State Key of Pulp and Paper Engineering, South China University of Technology, Guangzhou， Guangdong Province, 510640 
LEI Feng1 1.College of Bioresources Chemical and Materials Engineering， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， National Demonstration Center for Experimental Light Chemistry Engineering Education， Key Lab of Paper Based Functional Materials of China National Light Industry， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 
LI Wei1 1.College of Bioresources Chemical and Materials Engineering， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， National Demonstration Center for Experimental Light Chemistry Engineering Education， Key Lab of Paper Based Functional Materials of China National Light Industry， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 
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Abstract:Schiff base reaction was used to modify cellulose， and a new cellulose-based Schiff base-Cu complex was prepared. The morphology and structure of the modified fibers were analyzed by scanning electron microscopy and energy dispersive X-ray spectroscopy， Fourier transform infrared spectroscopy(FT-IR）， X-ray diffractometer(XRD）， ultraviolet visible spectrophotometer(UV-Vis） and inductively coupled plasma(ICP-AES）. The results showed that the surface of the modified fiber was rough and covered with granular material. EDS results showed that there were Cu elements in the complex and new absorption peaks appeared in FT-IR and UV-Vis. The above results proved the successful preparation Schiff base ligand and complex. ICP-AES test results showed that the mass fraction of Cu2+ in the complex was much higher than that of Cu2+ in the fiber sample impregnated with copper acetate solution. At the same time, the bacteriostatic test results showed that compared with the impregnated copper acetate solution fiber sample, the prepared cellulose-based Schiff base-Cu complex showed better antibacterial properties to E.coli.
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