Chen Cheng-Xin, Yang Shan-Shan, Pang Ji-Wei, He Lei, Zang Ya-Ni, Ding Lan, Ren Nan-Qi, Ding Jie
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
China Energy Conservation and Environmental Protection Group, CECEP Talroad Technology Co., Ltd., Beijing, 100096, China.
Environ Sci Ecotechnol. 2024 Jul 5;22:100449. doi: 10.1016/j.ese.2024.100449. eCollection 2024 Nov.
In recent years, there has been significant interest in photocatalytic technologies utilizing semiconductors and photosensitizers responsive to solar light, owing to their potential for energy and environmental applications. Current efforts are focused on enhancing existing photocatalysts and developing new ones tailored for environmental uses. Anthraquinones (AQs) serve as redox-active electron transfer mediators and photochemically active organic photosensitizers, effectively addressing common issues such as low light utilization and carrier separation efficiency found in conventional semiconductors. AQs offer advantages such as abundant raw materials, controlled preparation, excellent electron transfer capabilities, and photosensitivity, with applications spanning the energy, medical, and environmental sectors. Despite their utility, comprehensive reviews on AQs-based photocatalytic systems in environmental contexts are lacking. In this review, we thoroughly describe the photochemical properties of AQs and their potential applications in photocatalysis, particularly in addressing key environmental challenges like clean energy production, antibacterial action, and pollutant degradation. However, AQs face limitations in practical photocatalytic applications due to their low electrical conductivity and solubility-related secondary contamination. To mitigate these issues, the design and synthesis of graphene-immobilized AQs are highlighted as a solution to enhance practical photocatalytic applications. Additionally, future research directions are proposed to deepen the understanding of AQs' theoretical mechanisms and to provide practical applications for wastewater treatment. This review aims to facilitate mechanistic studies and practical applications of AQs-based photocatalytic technologies and to improve understanding of these technologies.
近年来，利用对太阳光有响应的半导体和光敏剂的光催化技术备受关注，因为它们在能源和环境应用方面具有潜力。目前的工作重点是改进现有的光催化剂，并开发适用于环境用途的新型光催化剂。蒽醌（AQs）作为氧化还原活性电子转移介质和光化学活性有机光敏剂，有效解决了传统半导体中常见的光利用效率低和载流子分离效率低等问题。蒽醌具有原料丰富、制备可控、电子转移能力优异和光敏性等优点，其应用涵盖能源、医疗和环境领域。尽管它们有实用性，但缺乏关于环境背景下基于蒽醌的光催化系统的全面综述。在本综述中，我们全面描述了蒽醌的光化学性质及其在光催化中的潜在应用，特别是在应对清洁能源生产、抗菌作用和污染物降解等关键环境挑战方面。然而，蒽醌由于其低电导率和与溶解度相关的二次污染，在实际光催化应用中面临局限性。为了缓解这些问题，固定化石墨烯的蒽醌的设计和合成被强调为增强实际光催化应用的一种解决方案。此外，还提出了未来的研究方向，以加深对蒽醌理论机制的理解，并为废水处理提供实际应用。本综述旨在促进基于蒽醌的光催化技术的机理研究和实际应用，并增进对这些技术的理解。
