Because the textile industry wastewater is polluted with azo dyes, and in order\nto improve a process of wastewater remediation, the synthesized sample was\nevaluated in the photocatalysis of methylene blue and compared with commercial\nBi2O3 and anatase TiO2. Structures of bismuth oxide carbonate\n(Bi2O2CO3) were successfully synthesized using a solution at 0.03 M concentration\nof sodium bismuthate as precursor and ethylene glycol as dissolvent\nby solvothermal microwave-assisted approach. The semiconductor catalyst\nsamples were characterized by X-ray diffraction (XDR), scanning electron\nmicroscope (SEM) and Brunauer-Emmett-Teller analysis (BET). The application\nof the synthesized sample as catalyst, obtained a 68% of degradation.\nThis result is better than the commercial Bi2O3 and close to the anatase TiO2\ndegradation. This sample shows a variation in the formula (with the presence\nof carbonates) but also shows an acceptable degradation percentage according\nto TiO2 results, making Bi2O2CO3 a possible substitute of TiO2.
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