Conference
BT/ZnO composite materials with improved functional properties
| العنوان: | BT/ZnO composite materials with improved functional properties |
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| المؤلفون: | Stanković, Ana, Filipović, Suzana, Stojković Simatović, Ivana, Škapin, Srečo Davor, Mančić, Lidija, Marković, Smilja |
| المصدر: | Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2021,29 June - 02 July 2021, Zlatibor, Serbia |
| بيانات النشر: | Innovation Center of Faculty of Mechanical Engineering |
| سنة النشر: | 2021 |
| المجموعة: | DAIS repository (Digital Archive of the Publications of the Serbian Academy of Sciences and Arts - SASA) / Дигитални архив издања САНУ |
| مصطلحات موضوعية: | barium titanate, zinc oxide, photo(electro)catalysis, solar cells |
| الوصف: | Due to a high-power conversion efficiency (PCE), perovskite solar cells (PSCs) are the most developing area of research in the past decade. Although lead−based inorganic−organic PSCs has achieved the highest PCE of 25.2%, the toxic nature of lead and poor stability of organic components strongly limits its commercialization. This problem can be overcome by developing of inorganic perovskites with a high PCE. Barium titanate (BaTiO3, BT) belongs to the perovskite crystal structure materials with remarkable dielectric, ferroelectric and ferromagnetic properties. In this research, to enhance functional properties of BT we employed functionalization with MEMO silane followed by in-situ alloying with ZnO in different BT to ZnO wt.%. Synthesized ZnO@MEMO@BT composites were tested as photo- and photo-electro catalysts under simulated sunlight irradiation. An enhanced catalytic activity of ZnO@MEMO@BT composites, compared to pure BT is probably due to the modified binding energy and an optimized band structure. In order to investigate the origin of improved catalytic efficiency, pristine BT and composites were characterized using a variety of techniques, including X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance and photoluminescence spectroscopy. The enhanced photo(electro)catalytic activity of the composite materials can be attributed to the synergetic effect of the surface defects and the ZnO/BT heterojunction particles, which enabled charge separation, thereby hindering the recombination of photogenerated carriers. |
| نوع الوثيقة: | conference object |
| اللغة: | English |
| ردمك: | 978-86-6060-077-8 86-6060-077-0 |
| Relation: | info:eu-repo/grantAgreement/MESTD/inst-2020/200175/RS//; https://dais.sanu.ac.rs/123456789/12350; http://dais.sanu.ac.rs/bitstream/id/49187/Stankovic_CNNTech.pdf; https://hdl.handle.net/21.15107/rcub_dais_12350 |
| الاتاحة: | https://dais.sanu.ac.rs/123456789/12350 http://dais.sanu.ac.rs/bitstream/id/49187/Stankovic_CNNTech.pdf https://hdl.handle.net/21.15107/rcub_dais_12350 |
| Rights: | openAccess ; https://creativecommons.org/licenses/by/4.0/ ; BY |
| رقم الانضمام: | edsbas.9DDA7314 |
| قاعدة البيانات: | BASE |
| ردمك: | 9788660600778 8660600770 |
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