TY - GEN
T1 - The Effect of Zn Doping to TiO2Thin Film Band Gap and Photocatalytic Performance
T2 - 6th International Seminar on Research of Information Technology and Intelligent Systems, ISRITI 2023
AU - Fatriansyah, Jaka Fajar
AU - Putra, Rudi Syah
AU - Shahab, Ahmad Nabil
AU - Ramadhani, Ahmad
AU - Pradana, Agrin Febrian
AU - Federico, Andreas
AU - Nafisah, Helya Chafshoh
AU - Suhariadi, Iping
AU - Septiningrum, Fairuz
AU - Dhaneswara, Donanta
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Methylene blue (MB), a prevalent organic dye, continues to be extensively used and released into the environment, threatening aquatic life. In this experiment, TiO2 thin films doped with Zn were synthesized and studied as photocatalysts for wastewater treatment to remove MB from the water. The thin films were made by the simple dip coating method. It was found that the addition of Zn as doping (10 v/v%) reduced the band gap of the TiO2 thin film and increased the calcination temperature. The lowest band gap obtained in our experiment was 3.03 eV, which is close to that of the pure TiO2 thin film band gap of 3.2 eV. With a Zn content of 10 v/v % and a calcination temperature of 500 °C, the decrease in band gap was due to the change in the electronic structure of TiO2, which was confirmed by X-ray diffraction (XRD) measurement and also due to the growth of the anatase phase of TiO2, which was confirmed by Fourier transform infrared spectroscopy (FTIR) measurement. A density functional theory simulation also confirmed the decrease in the band gap. The photocatalytic activity was also conducted and showed that TiO2 with doping of Zn (10 v/v%) at a calcination temperature of 400 °C had the highest photocatalytic activity of 89.47% MB removal after five hours of soaking under sunlight.
AB - Methylene blue (MB), a prevalent organic dye, continues to be extensively used and released into the environment, threatening aquatic life. In this experiment, TiO2 thin films doped with Zn were synthesized and studied as photocatalysts for wastewater treatment to remove MB from the water. The thin films were made by the simple dip coating method. It was found that the addition of Zn as doping (10 v/v%) reduced the band gap of the TiO2 thin film and increased the calcination temperature. The lowest band gap obtained in our experiment was 3.03 eV, which is close to that of the pure TiO2 thin film band gap of 3.2 eV. With a Zn content of 10 v/v % and a calcination temperature of 500 °C, the decrease in band gap was due to the change in the electronic structure of TiO2, which was confirmed by X-ray diffraction (XRD) measurement and also due to the growth of the anatase phase of TiO2, which was confirmed by Fourier transform infrared spectroscopy (FTIR) measurement. A density functional theory simulation also confirmed the decrease in the band gap. The photocatalytic activity was also conducted and showed that TiO2 with doping of Zn (10 v/v%) at a calcination temperature of 400 °C had the highest photocatalytic activity of 89.47% MB removal after five hours of soaking under sunlight.
KW - band gap
KW - doping
KW - methylene blue
KW - photocatalysis
KW - TiOthin film
UR - http://www.scopus.com/inward/record.url?scp=85190070071&partnerID=8YFLogxK
U2 - 10.1109/ISRITI60336.2023.10467760
DO - 10.1109/ISRITI60336.2023.10467760
M3 - Conference contribution
AN - SCOPUS:85190070071
T3 - 6th International Seminar on Research of Information Technology and Intelligent Systems, ISRITI 2023 - Proceeding
SP - 324
EP - 330
BT - 6th International Seminar on Research of Information Technology and Intelligent Systems, ISRITI 2023 - Proceeding
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 11 December 2023
ER -
