کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5465052 | 1517558 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Visible-light photocatalytic activity of TiOxNy thin films obtained by reactive multi-pulse High Power Impulse Magnetron Sputtering
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Visible-light photocatalytic activity of TiOxNy thin films obtained by reactive multi-pulse High Power Impulse Magnetron Sputtering Visible-light photocatalytic activity of TiOxNy thin films obtained by reactive multi-pulse High Power Impulse Magnetron Sputtering](/preview/png/5465052.png)
چکیده انگلیسی
Reactive High Power Impulse Magnetron Sputtering operated in multi-pulse mode (m-HiPIMS) of a pure Ti target in Ar/N2/O2 gas mixture (mass flow rates of 50, 2 and 0.16Â sccm, respectively) has been used for the deposition of titanium oxynitride (TiOxNy) thin films with variable content of nitrogen (from 0.6Â at.% to 24.2Â at.%). Increase of the nitrogen content in the deposited TiOxNy thin films determined a decrease of the optical bandgap energy and a corresponding increase of visible light adsorption. The photocatalytic activity for water molecule splitting of the films deposited on metallic substrate, which were used as the photo-anode in an electrochemical cell, has been investigated by measurements of photoelectrochemical current intensity versus biasing voltage during on/off cycles of visible light irradiation (sun light simulated by a xenon lamp). The as-deposited films have a short range order corresponding to rutile and anatase structures and showed very weak photocatalytic activity and chemical instability in the electrolyte of the photoelectrochemical cell. However, a post-deposition annealing treatment of the film with low content of nitrogen (0.6Â at.%) improved considerably the visible-light photocatalytic activity, the film crystalline order and chemical stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 324, 15 September 2017, Pages 614-619
Journal: Surface and Coatings Technology - Volume 324, 15 September 2017, Pages 614-619
نویسندگان
Alexandra Demeter, Florentina Samoila, Vasile Tiron, Dana Stanescu, Helene Magnan, Mihai Straticiuc, Ion Burducea, Lucel Sirghi,