کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5441581 | 1510664 | 2017 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influences of a new templating agent on the synthesis of coral-like TiO2 nanoparticles and their photocatalytic activity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influences of a new templating agent on the synthesis of coral-like TiO2 nanoparticles and their photocatalytic activity Influences of a new templating agent on the synthesis of coral-like TiO2 nanoparticles and their photocatalytic activity](/preview/png/5441581.png)
چکیده انگلیسی
We report a low cost and environmentally-friendly solvent system to synthesize TiO2 nanoparticles using an acidic deep eutectic solvent, choline chloride/p-toluene sulphonic acid as a templating and hydrolyzing agent via sol-gel method. The effect of varying concentration of the deep eutectic solvent (DES) on the important physico-chemical characteristics of as-synthesized TiO2 such as phase, morphology, particle size, surface area and band gap energy was studied. A detailed characterization of the obtained nanomaterials has been performed using various techniques, including X-ray diffraction (XRD), Scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) surface area, Raman and Ultraviolet-visible absorption spectroscopy. The spherical TiO2 nanoparticles were found to be biphasic with two phases: anatase and rutile having crystallite sizes in the range of 5.6-6.8 nm. These nanoparticles assembled together to form a coral-like morphology. The effect of calcination temperature on the synthesized products was studied by heating at 750 °C. The photocatalytic activity of the prepared TiO2 materials was evaluated by the photo-discoloration of an aqueous methyl orange dye solution (20 ppm) under UV light irradiation. The results indicate that the photocatalytic efficiency of an anatase-rutile mixture in the optimal sample DES-3 is higher (98% within 3 h) than a commercially available Degussa P-25 (87% within 3 h).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Science: Advanced Materials and Devices - Volume 2, Issue 3, September 2017, Pages 347-353
Journal: Journal of Science: Advanced Materials and Devices - Volume 2, Issue 3, September 2017, Pages 347-353
نویسندگان
Satwant Kaur Shahi, Navneet Kaur, Sofia Sandhu, J.S. Shahi, Vasundhara Singh,