ECOLOGICALLY ORIENTED INORGANIC SYNTHESIS OF TiO2-BASED NANOMATERIALS FOR WASTEWATER TREATMENT

Abstract

The article considers current approaches to environmentally friendly synthesis of nanomaterials based on titanium dioxide (TiO2), which can be effectively used for wastewater treatment from organic pollutants. Given the growing environmental requirements for chemical technologies, special attention is paid to the so-called “green synthesis” – a method of obtaining nanomaterials using natural reducing agents, plant extracts and non-toxic solvents. This approach allows minimizing the negative impact on the environment during the production of photocatalytically active materials. The process of obtaining TiO2 nanoparticles using green tea extracts, willow bark and other natural components that serve as reducing agents and stabilizers is described. The obtained nanostructures are characterized by a high specific surface area, uniform particle distribution and stable photocatalytic properties. The conducted studies of photocatalytic activity indicate the high efficiency of the synthesized materials in the degradation of organic dyes, in particular methylene blue, under the influence of UV radiation. Comparison with traditional synthesis methods indicates the advantages of the «green» approach in terms of energy saving, safety and environmental feasibility. In conclusion, the authors justify the feasibility of further implementation of such nanomaterials in wastewater treatment technology and emphasize the importance of the development of chemistry in the context of sustainable development and environmental protection.