الفهرس | Only 14 pages are availabe for public view |
Abstract As the world is facing increasing challenges in the field of energy crisis and environmental pollution, the use of renewable energy to control environmental pollution is of high priority. As an inexhaustible and environmentally friendly resource, solar energy is considered the most ideal power, which enables photodegradation to be a favorable technology for controlling environmental contamination. Thus, photocatalysis, especially semiconductor photocatalysis, becomes popular due to the advantages of using renewable resources, cost-effectiveness, safety, and comparatively high efficacy of water pollutant removal. Graphitic carbon nitride (g-C3N4 or gCN) has drawn great attention recently because of its visible light response, suitable energy band gap, good redox ability, and metal-free nature. gCN can absorb visible light directly, therefore has a better photocatalytic ability under solar irradiation and is more energy-efficient than other semiconductors. However, pure gCN still has the drawbacks of insufficient light absorption, small surface area and fast recombination of photogenerated electron and hole pairs. In this thesis, the visible light harvesting and photoelectrochemical properties of bulk gCN were expanded by hybridization with noble metals including gold (Au) and silver (Ag) nanoparticles (NPs) using different approaches |