Amorphous Molybdenum Disulfide Thin Film for Photocatalysis and Gas Sensing Applications | ||||
| Sohag Journal of Sciences | ||||
| Volume 8, Issue 2, May 2023, Page 235-241 PDF (726.67 K) | ||||
| Document Type: Regular Articles | ||||
| DOI: 10.21608/sjsci.2023.193578.1057 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Heba M. Mohamed  ; H. M. Ali; H. A. Mohamed; E. Kh. Shokr
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| Department of Physics, Faculty of Science, Sohag University, Sohag 82524, Egypt. | ||||
| Abstract | ||||
| Amorphous MoS2 thin films have been prepared by thermal deposition on glass, quartz, and FTO substrates and investigated by UV-VIS – NIR spectroscopy. The type of substrate has a minor impact on the film's spectral absorption and band gap values. The investigation of MB – dye degradation by MoS2 catalyst under UV – irradiation demonstrates high efficiency of 86%. MoS2 films deposited on glass substrates have been experienced as CO2, HCl, and I2 gas sensors. The films revealed promises for CO2 sensing at high temperatures (T 300 ) in terms of relatively good response ( and moderate recovery of 12 min. Besides, MoS2 films revealed a quick response within 1 min for both HCl and I2 gases, while their entire recovery needs a time period longer than one hour. | ||||
| Keywords | ||||
| Thermal evaporation technique; organic pollutants photodegradation; substrate type effect; gas sensing applications | ||||
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