The comparative study of photocatalytic self‐cleaning properties of synthesized nanoscale titania and zirconia onto polyacrylonitrile fibers

Abstract

The photocatalytic activity of TiO 2 and ZrO 2 -coated polyacrylonitrile (PAN) fibers was compared through the self-cleaning of methylene blue and eosin yellowish. TiO 2 and ZrO 2 nanocrystals were successfully synthesized and deposited onto PAN fibers with photocatalytic self-cleaning activity using the sol-gel process at low temperature. The pristine and treated samples have been characterized by several techniques, such as scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, diffuse reflectance spectroscopy, X-ray diffraction, and thermogravimetric analysis. The TiO 2 nanoparticles with 10-20 nm in size, and ZrO 2 with 20-40 nm have been synthesized to form dispersed particles on the fiber surface, which shows photocatalytic properties when exposed to UV-Vis light. The photocatalytic activity, tested by measuring the degradation of adsorbed methylene blue and Eosin Y. Photocatalytic activity of TiO 2 -coated fibers toward dyes degradation was higher than that of ZrO 2 -coated fibers. This preparation technique can be also applied to new fabrics to create self-cleaning and UV irradiation protection properties in them.

Semiconductor‐assisted self‐cleaning polymeric fibers based on zinc oxide nanoparticles

“…Details were described in our previous work. 29 The photocatalytic decomposition efficiency was determined from the following equation:…”

“…In our previous work we compared the photoactivity of TiO 2 and ZrO 2 -coated PAN fibers for self-cleaning purpose. 29 The initial precursors for the synthesis of TiO 2 and ZrO 2 onto polymeric surface are relatively expensive. So, in this study, we selected a cheap precursor such as zinc acetate for synthesis of ZnO photocatalyst on PAN and wool fibers.…”

Synthesis and Characterization of Nano-sized Zinc Oxide Coating on Cellulosic Fibers: Photoactivity and Flame-retardancy Study

“…[14][15][16][17][18] Moreover, there are many studies on the construction of ZnO nanoparticles onto cotton fibers. [19][20][21][22][23][24] Although some properties such as UV protec-tion, [19][20][21] antibacterial properties 22 and superhydrophobicity 23,24 have been explored, solid phase self-cleaning inspection has not been carried out.…”

“…Details have been described in our previous work. 14,18 The photocatalytic decomposition was determined from the following equation.…”

In vitro Photo‐Oxidation of Pyruvate to Acetyl: A Main Source for the Formation of Acetyl Coenzyme A in the Citric Acid Cycle to Perform Biochemical Reactions

“…2,3 Semiconductor photocatalysis is a newly developed AOP, used to degrade the pollutants in textile industry [3][4][5][6] which has been getting much attention due to its promising application in chemical conversion and storage of solar energy for solar cells, hydrogen production, refractory pollutants elimination and self-cleaning surface. [7][8][9][10][11] Most of the photoprocess deal with oxidation reactions by valence band holes and/or hydrogen production by conduction band electrons. 12 Few papers report on heterogeneous photosynthetic organic reactions such as amino acid synthesis 13,14 or photodehydrogenation.…”