کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7810618 | 1501765 | 2013 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrothermal temperature as a morphological control factor: Preparation, characterization and photocatalytic activity of titanate nanotubes and nanoribbons
ترجمه فارسی عنوان
دمای هیدروترمال به عنوان یک عامل کنترل مورفولوژیکی: آماده سازی، مشخص کردن و فعالیت فتوکاتالیستی نانولوله های تیتانات و نانوساختارها
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کلمات کلیدی
نانوتوب آناتاز، نانوریبون، شکر کردن عکاسی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Layered titanate nanotubes (TNTs) and titanate nanoribbons (TNRs) were synthesized via hydrothermal treatment from commercial TiO2. Formation of nanotubes and nanoribbons were monitored by varying the hydrothermal reaction temperature and time. The two parameters hydrothermal reaction temperature and time was 100 °C for 24 h/72 h, 150 °C for 24 h/72 h and 200 °C for 24 h/72 h. The morphology, structure and optical properties were systematically analyzed, with samples are characterized by TEM, XRD, XPS, SEM, N2 adsorption-desorption isotherm (BET) as well as Raman, FT-IR and UV-Vis/DR spectroscopy. The study revealed that reaction temperature is the parameter for morphological control of the product. Structure and physical properties of TNTs and TNRs are summarized. Further, dense products are obtained by increase the reaction time for the same temperature. The photocatalytic activities were assessed under UV light by degradation of rhodamine B aqueous solution. Results revealed that, degradation of TNTs and TNRs was observed, after samples annealed once at 400 °C, which is due to occurrence of phase transformation from titanate to anatase TiO2 and TiO2 (B) respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1049, 8 October 2013, Pages 446-457
Journal: Journal of Molecular Structure - Volume 1049, 8 October 2013, Pages 446-457
نویسندگان
S. Thennarasu, K. Rajasekar, K. Balkis Ameen,