This project aims to the study of master technology for synthesizing the several kinds of enviromentally benign nanomaterials, which have the photocatalytic activity in the visible region and have a good understanding of the optoelectronic processes. The results are important to pave a base for reasonable and efficient applications such as materials for photon-electron conversion using in waste water depollution and in solar cell.

-Theoretical results: successful syntheses of several kinds of Cu-based photocatalytic nanomaterials such as CuS(Se) and CuS(Se) core/ZnS shell, which have the high-quality and the photocatalytical activity under visible light and desired shapes/structures; this enables us to actively provide good samples to further basic and applied researches

- Scientific papers in referred journals (list):
+ U. T. D. Thuy, N. Q. Liem, K. Wilson, Catalysis Communications 44 (2014) 62-67. Synthesis of CuS and CuS/ZnS core/shell nanocrystals for photocatalytic degradation of dyes under visible light.
+ Thi Hiep Nguyen, Thu Loan Nguyen, Thi Dieu Thuy Ung and Quang Liem Nguyen, Adv. Nat. Sci.: Nanosci. Nanotechnol. 4 (2013) 025002. Synthesis and characterization of nano-CuO and CuO/TiO2 photocatalysts.
+ U. T. D. Thuy, N. Q. Liem, Vietnam Journal of Chemistry 51 (2013) 544-548. Synthesis of CuS and CuSe nanocrystals for depollution technique.

- Patents (list):
- Technological products (describe in details: technical characteristics, place):
+ CuS nanocrystals have different shapes such as the sphere (size of <100 nm) and flower (size of ~500 nm - 1 µm);
+ CuSe nanocrystals have different shapes such as the sphere (size of <100 nm) and plate (size of ~300-500 nm and thickness of ~20-50 nm);
+ CuS/ZnS nanocrystals have the sphere with the size of <200 nm.
- Other products (if applicable): This project have buit successfully the syntheses of several kinds of Cu-based photocatalytic nanomaterials such as CuS(Se) and CuS(Se) core/ZnS shell, which have the high-quality and the photocatalytical activity under visible light.