Yan Yaozong, Naya Shin-Ichi, Sugime Hisashi, Tada Hiroaki, Soejima Tetsuro
Graduate School of Science and Engineering, Kindai University 3-4-1, Kowakae Higashi-Osaka Osaka 577-8502 Japan
Environmental Research Laboratory, Kindai University 3-4-1, Kowakae Higashi-Osaka Osaka 577-8502 Japan
Chem Sci. 2025 May 2;16(21):9125-9134. doi: 10.1039/d5sc01447f. eCollection 2025 May 28.
From the perspective of energy and environmental issues, the development of green methods for HO production is demanded as an alternative to the conventional energy-intensive anthraquinone method. Among the candidates, photocatalytic HO production has recently attracted much interest. To withstand the use under harsh conditions, it is desirable that the photocatalyst be composed of robust inorganic materials. However, the external quantum yield ( ) of HO production by inorganic photocatalysts remains below 20% in most studies. Here we demonstrate that a nanohybrid photocatalyst consisting of antimony-doped SnO and ZnO can produce HO with a of ∼500% from O-saturated ethanol aqueous solution under UV-light irradiation. In the photochemical reactions, the quantum yield is usually far below unity (<100%) due to the rapid recombination of photogenerated charge carriers. Breaking through this limit will pave the way for innovative photochemical reactions with the photocatalytic HO synthesis brought closer to practical application.
从能源和环境问题的角度来看，开发绿色的过氧化氢生产方法作为传统能源密集型蒽醌法的替代方法是很有必要的。在众多候选方法中，光催化过氧化氢生产最近引起了广泛关注。为了能在苛刻条件下使用，光催化剂最好由坚固的无机材料组成。然而，在大多数研究中，无机光催化剂生产过氧化氢的外量子产率仍低于20%。在此，我们证明了一种由锑掺杂的二氧化锡和氧化锌组成的纳米复合光催化剂，在紫外光照射下，能从饱和氧气的乙醇水溶液中以约500%的外量子产率生产过氧化氢。在光化学反应中，由于光生载流子的快速复合，量子产率通常远低于1（<100%）。突破这一限制将为创新的光化学反应铺平道路，使光催化过氧化氢合成更接近实际应用。
