Preparation of Nb2O5/Nb2C Catalyst and Its Photocatalytic Performance for NO Conversion
Nb2O5/Nb2C heterojunction was successfully in-situ constructed through calcination method. The structureand properties of synthesized samples were analyzed using techniques such as XRD, Raman, SEM, BET, UV-Vis DRS, Mott-Schottky, and EIS. NO was selected as the target pollutant to evaluate its photocatalytic activity. The research results showed that the Nb2O5/Nb2C heterojunction could provide more reactive sites, improve light utilization efficiency and the separation efficiency of photo generated electrons and holes, thereby enhancing its photocatalytic activity. Under simulated sunlight irradiation, the conversion rate of NO reached 50.5％, which was 2.4 times and 14.4 times higher than that of Nb2O5 and Nb2C samples, respectively. In NO conversion experiment, the selective conversion rate of NO2 was only 0.75％.
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