Author(s)

Anh Phuong Le Thi¹, Masaru Ohshiro², Takaomi Kobayashi^1*

¹Department of Science and Technology Innovation, Nagaoka University of Technology, Nagaoka, Japan.
²Kasai Corporation, Niigata, Japan.

This study focused on the development and characterization of TiO₂-PES composite fibers with varying TiO₂ loading amounts using a phase inversion process. The resulting composite fibers exhibited a sponge-like structure with embedded TiO₂ nanoparticles within a polymer matrix. Their photocatalytic performance for ammonia removal from aqueous solutions under UV-A light exposure was thoroughly investigated. The findings revealed that PeTi8 composite fibers displayed superior adsorption capacity compared to other samples. Moreover, the study explored the impact of pH, light intensity, and catalyst dosage on the photocatalytic degradation of ammonia. Adsorption equilibrium isotherms closely followed the Langmuir model, with the results indicating a correlation between qm values of 2.49 mg/g and the porous structure of the adsorbents. The research underscored the efficacy of TiO₂ composite fibers in the photocatalytic removal of aqueous under  UV-A light. Notably, increasing the distance between the photocatalyst and the light source resulted in de-creased hydroxyl radical concentration, influencing photocatalytic efficiency. These findings contribute to our understanding of TiO₂ composite fibers as promising photocatalysts for ammonia removal in water treatment applications.

Ammonia Removal, Photocatalyst, TiO₂-PES Composite Fiber, Fibrous Material

Thi, A. , Ohshiro, M. and Kobayashi, T. (2024) TiO₂-PES Fibrous Composite Material for Ammonia Removal Using UV-A Photocatalyst. Journal of Materials Science and Chemical Engineering, 12, 1-19. doi: 10.4236/msce.2024.121001.