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Development of photocatalysis‐membrane separation reactor systems for aqueous pollutant removal 光催化膜分离反应器去除水中污染物的研究进展

PhotoMat Pub Date : 2023-10-18 DOI: 10.1002/phmt.7

Junyang Zhang, Yingchun Miao, Yuning Huo, Hexing Li

{"title":"Development of photocatalysis‐membrane separation reactor systems for aqueous pollutant removal","authors":"Junyang Zhang, Yingchun Miao, Yuning Huo, Hexing Li","doi":"10.1002/phmt.7","DOIUrl":"https://doi.org/10.1002/phmt.7","url":null,"abstract":"Abstract Background In our rapidly expanding society, the demand for clean water has steadily emerged as one of the most critical issues, promoting the development of numerous water treatment strategies. Aims Coupling photocatalysis and membrane separation technology provides an energy saving and environment‐friendly as well as sustainable method for aqueous pollutants removal due to the synergetic enhanced pollutant removal efficiency and improved anti‐fouling performance. It is of great scientific and technical significance to construct multifunctional photocatalysis‐membrane separation reactor systems (PMRs) with both the high photocatalytic activity and the strong stability. Discussion Herein, in order to introduce the recent advances of this field, we present a critical review on developments of PMRs for aqueous pollutant removal, which includes photocatalysts and membranes, advanced methods for designing PMRs. Meanwhile, the recent applications of PMRs in aqueous pollutant removal, antifouling strategies, and mechanisms have also been summarized, including the latest development of PMRs coupling with other treatment methods. Furthermore, future perspective of PMRs is outlooked and predicted. Conclusion PMRs, designed for the removal of aqueous pollutants, offer a more promising solution for the sustainable development of our society in the future.","PeriodicalId":478448,"journal":{"name":"PhotoMat","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135885234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solar‐driven co‐evolution of H₂ and H₂O₂ from pure water splitting over emerging photocatalysts: Detailed mechanism and future outlook 在新兴光催化剂上，太阳能驱动的纯水分解H2和H2O2的共同演化:详细机制和未来展望

PhotoMat Pub Date : 2023-09-12 DOI: 10.1002/phmt.5

Qiaohong Zhu, Jiaqi Wu, Mengmeng Du, Ning Zhang, Bocheng Qiu

{"title":"Solar‐driven co‐evolution of H2 and H2O2 from pure water splitting over emerging photocatalysts: Detailed mechanism and future outlook","authors":"Qiaohong Zhu, Jiaqi Wu, Mengmeng Du, Ning Zhang, Bocheng Qiu","doi":"10.1002/phmt.5","DOIUrl":"https://doi.org/10.1002/phmt.5","url":null,"abstract":"Abstract Hydrogen (H 2 ) energy is projected as a rising star to support the future society, and hydrogen peroxide (H 2 O 2 ) is widely utilized as a raw material in medical and chemical fields. Photocatalytic water splitting might enable an entire and sustainable environment for natural H 2 evolution and concurrent H 2 O 2 production, thus receiving increasing attention and realizing continuous achievements in recent years. However, such a reaction still suffers from the lacking of well‐designed photocatalytic systems with abundant active sites, and the efficiency is still far away from the standard of industrial‐scale application. Benefiting from constant experimental and theoretical investigations, this choke point has been considered by constructing diverse photocatalysts with modulated electronic, chemical, and physical properties. In this sense, this review critically outlines the state‐of‐the‐art progress on water splitting for H 2 and H 2 O 2 production over discovered photocatalytic systems, including titanium dioxide, carbon nitride, metal sulfides, etc. The general principles, including the thermodynamics and kinetics analysis, emerging issues, and corresponding strategies, are discussed. Significantly, some lessons drawn from the previous literature concerning simultaneous H 2 and H 2 O 2 production are proposed, and the main challenges in the future developments are summarized and clearly considered. This review aims to give a deep understanding of the photocatalytic water splitting for H 2 and H 2 O 2 co‐evolution and show some solutions to the future challenges in this field.","PeriodicalId":478448,"journal":{"name":"PhotoMat","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135830091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photochemical afterglow of single organic molecules with wide‐range tunable lifetime 具有大范围可调寿命的单个有机分子的光化学余辉

PhotoMat Pub Date : 2023-09-12 DOI: 10.1002/phmt.6

Yuetian Pei, Yiwei Fan, Yawei Liu, Kuangshi Sun, Wei Feng, Qian Liu, Fuyou Li

{"title":"Photochemical afterglow of single organic molecules with wide‐range tunable lifetime","authors":"Yuetian Pei, Yiwei Fan, Yawei Liu, Kuangshi Sun, Wei Feng, Qian Liu, Fuyou Li","doi":"10.1002/phmt.6","DOIUrl":"https://doi.org/10.1002/phmt.6","url":null,"abstract":"Abstract Background Photochemical afterglow that relies on slow release of photons from the chemical energy stored by light pre‐irradiation has emerged as a new optical imaging modality. However, conventional photochemical afterglow systems are considerably dependent on the interaction between multiple functional molecules, such as the afterglow initiator, the substrate, and the emitter. Therefore, these isolated functional molecules for afterglow luminescence have to be embedded in a nanoparticle with a confined space for many applications, which may suffer from problems like reproducibility and dye leakage. Aim Herein, we developed an “All‐in‐one” strategy that integrated all functional units for afterglow luminescence into one molecule to achieve photochemical afterglow of single organic small molecules. Material & Methods Triphenylamine and its derivatives contained single organic molecule were synthesized as “All‐in‐one” molecules, and underwent photochemical reactions triggered by singlet oxygen. We investigated the effect of substituents on the afterglow luminescence of the “All‐in‐one” molecules. Experimental measurements and theoretical calculations were performed to exhibit the wide‐range tunable lifetimes and to reveal the involving mechanisms. Results By tailoring the electron‐withdrawing ability of substituents, the afterglow lifetime of the “All‐in‐one” molecules can be conveniently tuned in a wide range from 28.6 s to 50.9 min. Moreover, the “All‐in‐one” afterglow materials were used to make smart printable security inks for optical multiplexing. Discussion & Conclusion Such “All‐in‐one” afterglow molecules successfully achieved bright afterglow with wide‐range tunable lifetimes by the regulation of molecular structure according to the effect of substituents. This work provided a novel strategy to convert traditional fluorescent dyes into afterglow materials of single organic molecules and showed its great potential in multiple information encryption and advanced biological.","PeriodicalId":478448,"journal":{"name":"PhotoMat","volume":"2014 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135831381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0