State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, China.
Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing 102249, China.
Molecules. 2023 Feb 9;28(4):1653. doi: 10.3390/molecules28041653.
One of the challenges in developing practical CO photoconversion catalysts is the design of materials with a low cost, high activity and good stability. In this paper, excellent photocatalysts based on TiO, WO, ZnO, CuO and CeO metal oxide materials, which are cost-effective, long-lasting, and easy to fabricate, are evaluated. The characteristics of the nanohybrid catalysts depend greatly on their architecture and design. Thus, we focus on outstanding materials that offer effective and practical solutions. Strategies to improve CO conversion efficiency are summarized, including heterojunction, ion doping, defects, sensitization and morphology control, which can inspire the future improvement in photochemistry. The capacity of CO adsorption is also pivotal, which varies with the morphological and electronic structures. Forms of 0D, 1D, 2D and 3DOM (zero/one/two-dimensional- and three-dimensional-ordered macroporous, respectively) are involved. Particularly, the several advantages of the 3DOM material make it an excellent candidate material for CO conversion. Hence, we explain its preparation method. Based on the discussion, new insights and prospects for designing high-efficient metallic oxide photocatalysts to reduce CO emissions are presented.
开发实用的 CO 光催化转化催化剂的挑战之一是设计具有低成本、高活性和良好稳定性的材料。本文评估了基于 TiO2、WO3、ZnO、CuO 和 CeO 金属氧化物材料的高效光催化剂，这些材料具有成本效益、持久耐用且易于制造的特点。纳米杂化催化剂的特性在很大程度上取决于其结构和设计。因此，我们专注于提供有效和实用解决方案的杰出材料。总结了提高 CO 转化率的策略，包括异质结、离子掺杂、缺陷、敏化和形态控制，这些策略可以为光化学的未来改进提供启示。CO 吸附的能力也很关键，它随形态和电子结构而变化。涉及到 0D、1D、2D 和 3DOM（分别为零维、一维、二维和三维有序大孔）的形式。特别是，3DOM 材料的几个优点使其成为 CO 转化的优秀候选材料。因此，我们解释了它的制备方法。基于讨论，提出了设计用于减少 CO 排放的高效金属氧化物光催化剂的新见解和前景。
