کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5360582 | 1503645 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced solar water splitting of electron beam irradiated titania photoanode by electrostatic spray deposition
ترجمه فارسی عنوان
افزایش تقسیم آب خورشیدی از پرتو الکترونی تابش تیتانا فوتانون توسط رسوب اسپری الکترواستاتیک
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Surface modifications are often made to titania films to improve its photocatalytic performance in water splitting. We herein introduced electron beam irradiation to enhance the photocatalytic activities of an electro-sprayed titania film for solar water splitting application. The film was fabricated by a facile and scalable electrostatic spraying deposition. According to SEM, X-ray diffraction, and Raman data, electron beam densified the film and improved its crystallinity. Absorbance data indicated that the band gap of the E-beam film reduced, which in turn covered the wider range of absorbed light. These modifications increased oxygen vacancies or defects, which enhanced mobility and separation of electrons and holes. As a result, the E-beam film exhibited a threefold increase in the photocurrent density, compared to that of the non-E-beam film. This electrosprayed titania film was used as a photoanode while the reference and counter electrodes involved in the generation of hydrogen were made of Ag/AgCl and platinum, respectively. The intensity of the UV light illumination used was 1Â mW/cm2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 319, 15 November 2014, Pages 205-210
Journal: Applied Surface Science - Volume 319, 15 November 2014, Pages 205-210
نویسندگان
Mukund G. Mali, Hyun Yoon, Seongpil An, Jae-Young Choi, Ha-Yong Kim, Byung Cheol Lee, Byung Nam Kim, Ji Hyun Park, Salem S. Al-Deyab, Sam S. Yoon,