Chemical Research in Chinese Universities ›› 2022, Vol. 38 ›› Issue (6): 1475-1481.doi: 10.1007/s40242-022-2056-3

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Surfaced-modified TiO2 Nanofibers with Enhanced Photodegradation Under Visible Light

PENG Hao1,2, JIANG Jiaxin1,2, LIU Yifang1,2, WANG Xiang3, LI Wenwang3, ZHENG Gaofeng1,2   

  1. 1. Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361102, P. R. China;
    2. Fujian Innovation Center of Additive Manufacturing, Fuzhou 350118, P. R. China;
    3. School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, P. R. China
  • Received:2022-02-17 Online:2022-12-01 Published:2022-12-06
  • Contact: ZHENG Gaofeng E-mail:zheng_gf@xmu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (No.51805460), the Science and Technology Planning Project of Fujian Province, China(Nos.2020H6003, 2021J011196), and the Fund of Fujian Innovation Center of Additive Manufacturing, China(No.ZCZZ202-31).

Abstract: Asynchronized surface modification method based on coaxial electrospinning was developed to fabricate high-efficiency photodegradative nanofiber for water purification. TiO2 nanoparticles assembled uniformly on the surface of polycaprolactone(PCL) nanofibers to form composite nanofibers through one step process. The maximal content of Ti element was 25.6%(mass fraction) in the PCL/TiO2 composite nanofibrous membrane, which exhibited hydrophilicity and excellent photodegradation under visible light in water. The Rhodamine B dye degraded 96.17% in 120 min under visible light by the PCL/TiO2 composite membrane. The adsorption behavior fitted Langmuir model well and indicated chemical related adsorption. This PCL/TiO2 composite nanofibrous membrane has super degradation properties and displays great application potential to environmental protection.

Key words: Nanoparticle, Environmental degradation, Surface property, Electrospinning