Facile Preparation of Nanosized MoP as Cocatalyst Coupled with TiO.sub.2 for Highly Efficient Photocatalytic H.sub.2 Production

• Published in: Catalysis letters Vol. 152; no. 10; pp. 3192 - 3201
• Main Authors: Jiang, Xinxin, Fuji, Masayoshi
• Format: Journal Article
• Language: English
• Published: Springer 01.10.2022
• Subjects: Hydrogen; Semiconductors
• ISSN: 1011-372X
• DOI: 10.1007/s10562-021-03888-y

Presently, combining MoP as a co-catalyst and another subjective semiconductor into a composite catalyst often requires the use of various complex reduction methods. In this study, a TiO.sub.2/MoP composite photocatalyst with high catalytic performance was successfully prepared by a facile ultrasonic dispersion method. The results of the hydrogen evolution performance, compared to the TiO.sub.2, showed that the TiO.sub.2 coupling with the MoP co-catalyst remarkably enhanced the photocatalytic performance. The optimized TiO.sub.2/MoP-5p catalyst had the highest H.sub.2-evolution rate of 4.3 mmolg.sup.-1 h.sup.-1 (AQE = 8.3%) under UV light irradiation, which is 19 times higher than that of pure TiO.sub.2. In addition, it had a good stability. Due to the low impedance and the metal-semiconductor system between the TiO.sub.2 and MoP, the constructed TiO.sub.2/MoP hybrid can effectively separate the photogenerated electrons and holes, and further improve the photocatalytic activity.