Journal of Minerals and Materials Characterization and Engineering

Volume 7, Issue 6 (November 2019)

ISSN Print: 2327-4077   ISSN Online: 2327-4085

Google-based Impact Factor: 1  Citations  

Bismuth Oxide Carbonate Structures Synthesized by Microwave—Assisted Solvothermal Approach and Its Use as Catalyst for the Degradation of Azo Dye in a Solution

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DOI: 10.4236/jmmce.2019.76033    510 Downloads   1,384 Views  Citations

ABSTRACT

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

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Luna-Alvarado, M. , Estrada-Flores, M. , Manríquez-Ramírez, M. and Germán, C. (2019) Bismuth Oxide Carbonate Structures Synthesized by Microwave—Assisted Solvothermal Approach and Its Use as Catalyst for the Degradation of Azo Dye in a Solution. Journal of Minerals and Materials Characterization and Engineering, 7, 468-479. doi: 10.4236/jmmce.2019.76033.

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