Studies on the performance of TiO{sub 2} thin films as protective layer to chlorophyll in Ocimum tenuiflorum L from UV radiation

Journal Article · Wed Jun 24 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4917951· OSTI ID:22490415

Malliga, P. ^[1]; Selvi, B. Karunai ^[2]; Pandiarajan, J.; Prithivikumaran, N. ^[3]

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1. Department of Physics, V.V.Vanniaperumal College for Women, Virudhunagar – 626001 (India)
2. Department of Botany, V.V.Vanniaperumal College for Women, Virudhunagar – 626001 (India)
3. Nanoscience Lab, Department of Physics, VHNSN College, Virudhunagar – 626001 (India)

Thin films of TiO{sub 2} were prepared on glass substrates using sol-gel dip coating technique. The films with 10 coatings were prepared and annealed at temperatures 350°C, 450°C and 550°C for 1 hour in muffle furnace. The annealed films were characterized by X – Ray diffraction (XRD), UV – Visible, AFM, Field Effect Scanning Electron Microscopy (FESEM) and EDAX studies. Chlorophyll has many health benefits due to its structural similarity to human blood and its good chelating ability. It has antimutagenic and anticarcinogenic properties. UV light impairs photosynthesis and reduces size, productivity, and quality in many of the crop plant species. Increased exposure of UV light reduces chlorophyll contents a, b and total content in plants. Titanium Dioxide (TiO{sub 2}) is a wide band gap semiconductor and efficient light harvester. TiO{sub 2} has strong UltraViolet (UV) light absorbing capability. Here, we have studied the performance of TiO{sub 2} thin films as a protective layer to the chlorophyll contents present in medicinal plant, tulsi (Ocimum tenuiflorum L) from UV radiation. The study reveals that crystallite size increases, transmittance decreases and chlorophyll contents increases with increase in annealing temperature. This study showed that TiO{sub 2} thin films are good absorber of UV light and protect the chlorophyll contents a, b and total content in medicinal plants.

• OSTI ID: 22490415
• Journal Information: AIP Conference Proceedings, Vol. 1665, Issue 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNEALING
ATOMIC FORCE MICROSCOPY
BLOOD
CHELATING AGENTS
CHLOROPHYLL
COATINGS
CROPS
DIP COATING
GLASS
MEDICINAL PLANTS
PHOTOSYNTHESIS
SCANNING ELECTRON MICROSCOPY
SEMICONDUCTOR MATERIALS
SOL-GEL PROCESS
SUBSTRATES
THIN FILMS
TITANIUM OXIDES
ULTRAVIOLET RADIATION
VISIBLE RADIATION
X-RAY DIFFRACTION