School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xian, 710072, China; MoA Key Laboratory for Clean Production and Utilization of Renewable Energy, MoST National Center for International Research of BioEnergy Science and Technology, College of Engineering, China Agricultural University, Beijing, 100083, China.
Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, China.
Chemosphere. 2022 Dec;308(Pt 2):136358. doi: 10.1016/j.chemosphere.2022.136358. Epub 2022 Sep 7.
According to World Health Organization (WHO) survey, air pollution has become the major reason of several fatal diseases, which had led to the death of 7 million peoples around the globe. The 9 people out of 10 breathe air, which exceeds WHO recommendations. Several strategies are in practice to reduce the emission of pollutants into the air, and also strict industrial, scientific, and health recommendations to use sustainable green technologies to reduce the emission of contaminants into the air. Photocatalysis technology recently has been raised as a green technology to be in practice towards the removal of air pollutants. The scientific community has passed a long pathway to develop such technology from the material, and reactor points of view. Many classes of photoactive materials have been suggested to achieve such a target. In this context, the contribution of conjugated polymers (CPs), and their modification with some common inorganic semiconductors as novel photocatalysts, has never been addressed in literature till now for said application, and is critically evaluated in this review. As we know that CPs have unique characteristics compared to inorganic semiconductors, because of their conductivity, excellent light response, good sorption ability, better redox charge generation, and separation along with a delocalized π-electrons system. The advances in photocatalytic removal/reduction of three primary air-polluting compounds such as CO, NO and VOCs using CPs based photocatalysts are discussed in detail. Furthermore, the synergetic effects, obtained in CPs after combining with inorganic semiconductors are also comprehensively summarized in this review. However, such a combined system, on to better charges generation and separation, may make the Adsorb & Shuttle process into action, wherein, CPs may play the sorbing area. And, we hope that, the critical discussion on the further enhancement of photoactivity and future recommendations will open the doors for up-to-date technology transfer in modern research.
根据世界卫生组织（WHO）的调查，空气污染已成为多种致命疾病的主要原因，导致全球有 700 万人死亡。十分之九的人呼吸的空气超过了世界卫生组织的建议标准。目前正在采取一些策略来减少污染物排放到空气中，并严格执行工业、科学和卫生建议，使用可持续的绿色技术减少污染物排放到空气中。光催化技术最近被提出作为一种绿色技术，用于去除空气污染物。科学界已经从材料和反应器的角度走过了漫长的道路来开发这种技术。已经提出了许多类光活性材料来实现这一目标。在这种情况下，共轭聚合物（CPs）及其与一些常见无机半导体的改性作为新型光催化剂的贡献，在文献中迄今为止尚未针对该应用进行讨论，并在本综述中进行了批判性评估。因为 CP 具有与无机半导体相比的独特特性，因为它们的导电性、优异的光响应、良好的吸附能力、更好的氧化还原电荷生成和分离以及离域的π电子系统。详细讨论了使用基于 CPs 的光催化剂去除/还原三种主要空气污染物（CO、NO 和 VOC）的光催化进展。此外，在与无机半导体结合后 CP 中获得的协同效应也在本综述中得到了全面总结。然而，这种组合系统，为了更好地进行电荷生成和分离，可能会使吸附和穿梭过程开始运作，其中 CP 可能会起到吸附区域的作用。并且，我们希望对进一步提高光活性的批判性讨论和未来建议将为现代研究中的最新技术转让打开大门。
