Effect of aging on the properties of TiO(2) nanoparticle
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JTAP-10-3_006
تاریخ نمایه سازی: 27 مرداد 1397
Abstract:
Effect of aging on the properties of titaniumdioxide nanoparticles produced by laser ablation process inwater is investigated experimentally. The fundamentalwavelength of a Q-switched Nd:YAG laser was employedto irradiate a high-purity Ti plate in distilled water attemperatures of 20, 35, 50 and 65 ̊ C. Produced nanoparticleswere diagnosed by UV–Vis–NIR spectroscopy,X-ray diffraction method, and dynamic light scatteringdevice immediately after production and 1 week after.Bandgap energy of samples was extracted using Taucmethod. Size of nanoparticles was increased after a weekand their bandgap energy was decreased. Results show thatthe phase of TiO(2) nanoparticles was transited from brookiteto rutile after 1 week.
Keywords:
Laser ablation TiO2 nanoparticle Absorption spectra XRD Exitonic resonance
Authors
Nafise Ebrahim Jasbi
Physics Department, Science Faculty, Central Tehran Branch, Islamic Azad University, Tehran, Iran
Davoud Dorranian
Laser Laboratory, Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran