Highly Efficient Photocatalytic Hydrogen Evolution in Ternary Hybrid TiO2/CuO/Cu Thoroughly Mesoporous Nanofibers

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• 作者：Huilin Hou ; Minghui Shang ; Fengmei Gao ; Lin Wang ; Qiao Liu ; Jinju Zheng ; Zuobao Yang ; Weiyou Yang
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：August 10, 2016
• 年：2016
• 卷：8
• 期：31
• 页码：20128-20137
• 全文大小：912K
• 年卷期：0
• ISSN：1944-8252

文摘

Development of novel hybrid photocatalysts with high efficiency and durability for photocatalytic hydrogen generation is highly desired but still remains a grand challenge currently. In the present work, we reported the exploration of ternary hybrid TiO₂/CuO/Cu thoroughly mesoporous nanofibers via a foaming-assisted electrospinning technique. It is found that by adjusting the Cu contents in the solutions, the unitary (TiO₂), binary (TiO₂/CuO, TiO₂/Cu), and ternary (TiO₂/CuO/Cu) mesoporous products can be obtained, enabling the growth of TiO₂/CuO/Cu ternary hybrids in a tailored manner. The photocatalytic behavior of the as-synthesized products as well as P25 was evaluated in terms of their hydrogen evolution efficiency for the photodecomposition water under Xe lamp irradiation. The results showed that the ternary TiO₂/CuO/Cu thoroughly mesoporous nanofibers exhibit a robust stability and the most efficient photocatalytic H₂ evolution with the highest release rate of ∼851.3 μmol g^–1 h^–1, which was profoundly enhanced for more than 3.5 times with respect to those of the pristine TiO₂ counterparts and commercial P25, suggesting their promising applications in clean energy production.