TY - GEN
T1 - Optical properties and photocatalytic performance analysis of titanium dioxide with various crystallite size
AU - Alfarizi, Aldi
AU - Lalasari, Latifa Hanum
AU - Sofyan, Nofrijon
AU - Dhaneswara, Donanta
AU - Yuwono, Akhmad Herman
N1 - Funding Information:
The authors would like to thank Directorate of Research and Community Engagement Universitas Indonesia for financing this research through Publikasi Terindeks Internasional (PUTI) Prosiding Research Grant Year 2020 under contract number: NKB-1093/UN2.RST/HKP.05.00/2020.
Publisher Copyright:
© 2023 Author(s).
PY - 2023/5/9
Y1 - 2023/5/9
N2 - The optical properties of titanium dioxide (TiO2) play an essential role in the development of semiconductors for various applications, including sensors, self-cleaning materials, solar cells, and photocatalysis. This study was therefore aimed at investigating the correlation between the TiO2 crystallite size and bandgap energy value, as these properties influenced the semiconductor oxide's functional performance. Subsequently, nano and micro size TiO2 samples, as well as ball-mills treated at frequencies of 10 and 20 Hz, were used to create variation in crystallite size. Meanwhile, observation with x-ray diffraction (XRD) and ultraviolet-visible (UV-Vis) spectroscopy showed the TiO2 P25 Degussa anatase sample had the smallest crystallite size of 24.21 nm and the largest bandgap energy of 3.44 eV, while the TiO2 sample with 20 Hz frequency ball-mill possessed the largest crystallite size of 71.067 nm as well as the smallest bandgap energy of 3.33 eV. Also, with the aid of related literature, further studies, including the degradation of liquid pollutants, were performed to estimate the effect of these crystallite sizes and bandgap energies on the photocatalytic performance of the samples. The optimum result was found to be exhibited by TiO2 P25 Degussa sample due to high surface area for interaction with liquid pollutants.
AB - The optical properties of titanium dioxide (TiO2) play an essential role in the development of semiconductors for various applications, including sensors, self-cleaning materials, solar cells, and photocatalysis. This study was therefore aimed at investigating the correlation between the TiO2 crystallite size and bandgap energy value, as these properties influenced the semiconductor oxide's functional performance. Subsequently, nano and micro size TiO2 samples, as well as ball-mills treated at frequencies of 10 and 20 Hz, were used to create variation in crystallite size. Meanwhile, observation with x-ray diffraction (XRD) and ultraviolet-visible (UV-Vis) spectroscopy showed the TiO2 P25 Degussa anatase sample had the smallest crystallite size of 24.21 nm and the largest bandgap energy of 3.44 eV, while the TiO2 sample with 20 Hz frequency ball-mill possessed the largest crystallite size of 71.067 nm as well as the smallest bandgap energy of 3.33 eV. Also, with the aid of related literature, further studies, including the degradation of liquid pollutants, were performed to estimate the effect of these crystallite sizes and bandgap energies on the photocatalytic performance of the samples. The optimum result was found to be exhibited by TiO2 P25 Degussa sample due to high surface area for interaction with liquid pollutants.
UR - http://www.scopus.com/inward/record.url?scp=85160056355&partnerID=8YFLogxK
U2 - 10.1063/5.0116019
DO - 10.1063/5.0116019
M3 - Conference contribution
AN - SCOPUS:85160056355
T3 - AIP Conference Proceedings
BT - Advances in Metallurgy and Engineering Materials
A2 - Fatriansyah, Jaka Fajar
A2 - Ferdian, Deni
A2 - Putra, Wahyuaji Narottama
A2 - Yuwono, Akhmad Herman
A2 - Dhaneswara, Donanta
A2 - Sofyan, Nofrijon
PB - American Institute of Physics Inc.
T2 - International Meeting on Advances in Metallurgy and Materials 2020, i-MAMM 2020
Y2 - 16 November 2020 through 17 November 2020
ER -