Synthesis and characterization of photocatalytic C doped tio2 coating on patterned glass for degradation of pollutants in water and in air

Name: Sittipong Au-Pree.

ThaSH: Chemical Reactions

Classification :.DDC: 541.39

ThaSH: Synthesis

Abstract: This work aims to synthesize the responded visible light carbon-doped titanium dioxide (C–doped TiO2) via the ultrasonic–assisted sol–gel method. Corn starch, honey, and polyethylene glycol were selected for external carbon sources with various the weight percent of 0.5, 1.0 and 2.0. The structural, compositional, morphological, and optical studies of the as–synthesized C–doped TiO2 photocatalytic powder samples were characterized. The optical property of as-synthesized C–doped TiO2 photocatalytic film samples in different glass supporters were analyzed, and photocatalytic activities of the as-synthesized C–doped TiO2 photocatalytic film samples on methylene blue and gaseous formaldehyde were evaluated at 664 and 412 nm by using spectrophotometric method and ultraviolet-visible spectroscopy, respectively. From the results, found that the as-synthesized C–doped TiO2 photocatalytic samples crystallized in anatase with spherical morphologies and crystallite size in the range of 5–9 nm which were confirmed by X–ray diffraction and field emission scanning electron microscopy techniques. Moreover, spectra of X–ray photoelectron and fourier-transform infrared spectroscopies can be confirmed the carbon atom from internal and external carbon sources substituted to titanium atomic position in TiO2. This result showed that the catalyst active well in the region of visible light absorption with related the reduced band gap energy of 2.71 eV with optimum the weight percent of 2.0 from corn starch. From the optical property results of as–synthesized C–doped anatase TiO2 photocatalytic film samples in different glass supporters showed that the hemispherical hole of patterned glass supporter can be enhanced the electron and hole separation of catalyst for longer time after excited at 300 nm. Moreover, from the results of photocatalytic activities of the as–synthesized C–doped TiO2 photocatalytic film samples on methylene blue and gaseous formaldehyde observed that as–synthesized C–doped anatase TiO2 photocatalytic film samples with optimum the weight percent of 2.0 from corn starch showed excellent degradation about 87% of MB and 95% gaseous formaldehyde for 1 hour reaction time with reused the TiO2 catalyst film on the modified glass supporter throughout adhesive waterproof glue.

Lampang Rahjabhat University

Address: Lampang

Email: lprulibrary1@gmail.com

Name: Asst. Prof. SAMROENG NARAKAEW, Ph.D.,

Role: THESIS ADVISORS

Name: SIWAT THUNGPRASERT, Ph.D.,

Role: THESIS ADVISORS

Name: THEERAPORN PROMANAN, Ph.D.,

Role: THESIS ADVISORS

Name: Assoc. Prof. APHIRUK CHAISENA, Ph.D.

Role: THESIS ADVISORS

Created: 2021

Modified: 2566-09-15

Issued: 2023-09-11

วิทยานิพนธ์/Thesis

application/pdf

RES 541.39 S623S

eng

DegreeName: MASTER OF SCIENCE (APPLIED CHEMISTRY)

Descipline: APPLIED CHEMISTRY

Grantor: มหาวิทยาลัยราชภัฏลำปาง สำนักวิทยบริการและเทคโนโลยีสารสนเทศ

Level: Master's Degree

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