Effect of synergic cooperation on optical and photoelectrochemical properties of CeO2–MnO composite thin films

2016 ◽  
Vol 40 (6) ◽  
pp. 5177-5184 ◽  
Author(s):  
Muhammad Adil Mansoor ◽  
Muhammad Mazhar ◽  
Mehdi Ebadi ◽  
Huang Nay Ming ◽  
Mohd Asri Mat Teridi ◽  
...  
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Band Gap ◽  
Photoelectrochemical Properties ◽  
Composite Thin Films

Low-temperature (475 °C) fabrication of CeO2–MnO composite thin films having a band gap of 2.5 eV by AACVD.

Semiconducting composite oxide Y2CuO4–5CuO thin films for investigation of photoelectrochemical properties

2014 ◽  
Vol 43 (22) ◽  
pp. 8523-8529 ◽  
Author(s):  
Sohail Ahmed ◽  
Muhammad Adil Mansoor ◽  
Muhammad Mazhar ◽  
Tilo Söhnel ◽  
Hamid Khaledi ◽  
...  
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Photocurrent Density ◽  
Photoelectrochemical Properties ◽  
Composite Oxide ◽  
Composite Thin Films

Y2CuO4–5CuO composite thin films having a band gap of 1.82 eV and a photocurrent density of 9.85 μA cm−2 at 0.8 V have been deposited from a solution of precursor 1 by AACVD.

scholarly journals Structural, Optical and Photoelectrochemical Properties of Cuprous Oxide Synthesized by Low Temperature Thermal Oxidation

2016 ◽  
Vol 13 (1) ◽  
pp. 01-06
Author(s):  
A. A Ogacacho ◽  
B. O. Aduda
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Thermal Oxidation ◽  
Ultrathin Films ◽  
Cuprous Oxide ◽  
Photoelectrochemical Properties ◽  
X Ray Diffraction ◽  
Cooling Process ◽  
X Ray ◽  
Dominant Phase

Ultrathin films (50-150nm thick) cuprous oxide (Cu2O) thin films were deposited by low temperature thermal oxidation technique. The structural, optical and photoelectrochemical properties of the thin films were investigated. X-ray diffraction (XRD) and high resolution scanning electron microscope (SEM) was used to study the phase composition and the thin films’ microstructure respectively. XRD results showed that Cu2O was the dominant phase albeit some trace CuO peaks were also observed indicating surface formation of an extremely layer of CuO probably during the cooling process following either deposition or during the annealing steps. SEM showed a highly nanostructure consisting long narrow nanorods with broadening to the surface but with extremely narrow, sharp cylindrical roots standing on the substrate. Photoelectrochemical properties of the films were studied via a standard three electrode using a saturated calomel cell (SCE).

Photocatalytic and Antibacterial Properties of TiO2 Composite Thin Films Coated on 304 Stainless Steel Substrate Synthesized at Low Temperature

2011 ◽  
Vol 214 ◽  
pp. 444-449
Author(s):  
Natthapong Muangtrairat ◽  
Vishnu Rachpech ◽  
Lek Sikong
Keyword(s):  
Thin Films ◽  
Stainless Steel ◽  
Low Temperature ◽  
Uv Irradiation ◽  
Stainless Steel Substrate ◽  
Steel Substrate ◽  
Antibacterial Properties ◽  
304 Stainless Steel ◽  
Photocatalytic Reaction ◽  
Composite Thin Films

This paper describes the photoactive and antibacterial properties of TiO2, Fe3+/TiO2 and N/TiO2 thin films on 304 stainless steel substrate that prepared by a sol-gel and dip coating methods. Anatase phase crystalline together with an amorphous phase was formed after refluxed at 100W for 2h using a domestic microwave oven followed by oven heating in low temperature range 100-250°C for 1 h. The adhesion between thin film and stainless steel substrate is strong and films thickness observed by SEM were about 700~1000 nm. FT-IR spectra of as-prepared TiO2 powders reveal hydroxyl radical on TiO2 surfaces, leading to promotion of photocatalytic reaction of the films. Photocatalytic activity was determined by means of degradation of methylene blue solution under UV irradiation and antibacterial efficiency was evaluated by inactivation of E.coli. The photocatalytic reaction rate can be expressed as an exponential equation. TiO2 and TiO2 composite thin films exhibited high photoactive and antibacterial properties under UV irradiation comparing to control. E.coli was killed about 80% and 95% during treatment with UV for 1 and 3 h, respectively.

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