This photocatalyst is more successful in removing a special type of cancerous pigment from water than other commercial photocatalysts in the market for purification of water,
In this research, the photocatalytic performance of two sample groups of niobium pentoxide with porous and bulk structure was investigated and compared while the samples were synthesized through two different methods.
Among the investigations carried out in this research, mention can be made of the comparison between photocatalytic performance of mesoporous samples and bulk ones, and commercial samples in dye removal of colorful wastewater containing malachite green pigment under the radiation of ultraviolet and visible light.
The results showed that the sample produced at lower temperature (calcination temperature) has the strongest ability to remove dyes from malachite green wastewater among all other samples. Therefore, the reduction in energy required for the production of a sample with optimum performance is one of the positive results of the research.
The more important characteristic is the strong performance of the optimum sample under visible light that includes a wide range of sunlight radiation wavelengths.
Commercial titanium oxide photocatalyst is active only under ultraviolet radiation. Therefore, highly consuming energy and harmful radiation of ultraviolet is required for the use of this semi-conductive compound in the removal and degradation of organic pollutants in the wastewater of various industries.
On the contrary, the photocatalyst produced in this research has a desirable performance in the range of visible light. Reduction in energy consumption and removal of harmful effects of ultraviolet light are among important achievements in this research, which are caused by the appropriate performance of catalyst in sunlight.
Nanotech removes organic pigments from wastewater
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