| Автор | Ung, Thi Dieu Thuy |
| Автор | Nguyen, Quang Liem |
| Дата выпуска | 2011-12-01 |
| dc.description | Large-scale synthesis of Cu<sub>2−x</sub>Se nanocrystals (nano-Cu<sub>2−x</sub>Se) with uniform size was performed via a facile hydrothermal method at room temperature and at 120 °C. Nano-Cu<sub>2−x</sub>Se with different structures could be synthesized by changing the reaction/growth time, the Cu:Se molar ratios, and the initial concentration of the precursors. The synthesized nano-Cu<sub>2-x</sub>Se was characterized using various techniques, including x-ray powder diffraction, scanning electron microscopy and photocatalytic activity. Systematic studies showed that the reaction time played a key role in controlling the morphology and structure leading to significant influence on the photocatalytic activity of nano-Cu<sub>2−x</sub>Se. With increasing reaction/growth time, Cu<sub>2−x</sub>Se could transform gradually from a cubic to hexagonal structure and from nanoparticles to nanoplate/nanorod shapes. The photocatalytic characteristics were evaluated by the photo-decoloration of Rhodamine B (RhB) in aqueous solution under visible light irradiation. As-prepared nano-Cu<sub>2−x</sub>Se showed good photocatalytic activity under visible light irradiation, indicating potential applications in depollution technologies. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2011 Vietnam Academy of Science & Technology |
| Название | Synthesis, structural and photocatalytic characteristics of nano-Cu<sub>2−x</sub>Se |
| Тип | paper |
| DOI | 10.1088/2043-6262/2/4/045003 |
| Electronic ISSN | 2043-6262 |
| Print ISSN | 2043-6254 |
| Журнал | Advances in Natural Sciences: Nanoscience and Nanotechnology |
| Том | 2 |
| Первая страница | 45003 |
| Последняя страница | 45008 |
| Аффилиация | Ung, Thi Dieu Thuy; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam |
| Аффилиация | Nguyen, Quang Liem; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam |
| Выпуск | 4 |
