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Highly Efficient Peroxymonosulfate Activation on Electron-Enriched Ruthenium Dual-Atom Sites Catalysts for Enhanced Water Purification
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-09-13 , DOI: 10.1002/adfm.202308204 Shizhe Xu 1 , Xueyue Mi 1 , Pengfei Wang 2 , Yueshuang Mao 1 , Qixing Zhou 1 , Sihui Zhan 1
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-09-13 , DOI: 10.1002/adfm.202308204 Shizhe Xu 1 , Xueyue Mi 1 , Pengfei Wang 2 , Yueshuang Mao 1 , Qixing Zhou 1 , Sihui Zhan 1
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By rationally adjusting the coordination environment and constructing the more electron-enriched active site in single-atom catalysts, the effect of heterogenous peroxymonosulfate (PMS)-based Fenton-like reactions can be effectively improved, yet remains a severe challenge. In this study, the electron-rich Ru dual-atom site is successfully immobilized onto N-doped carbon (Ru2N6-C) for PMS activation in water purification. The presence of electron-rich Ru dual-atom sites not only provides more electrons for PMS but also facilitates the formation of a Yeager adsorption configuration on the catalyst surface, which enhances O─O bond cleavage and leads to an increase in •SO4− and •OH generation. Moreover, the Ru2N6-C catalyst exhibits exceptional durability and reliability, achieving an ultra-high efficiency with a turnover frequency of 153.95 min−1 M−1 for the naproxen degradation. A membrane reactor is further developed for the purification of wastewater, which is expected to provide a viable approach to controlling water pollution through the design of metal dual-atom sites carbon-based catalysts.
中文翻译：
用于增强水净化的富电子钌双原子位催化剂的高效过一硫酸盐活化
通过合理调整配位环境并在单原子催化剂中构建更多电子富集的活性位点，可以有效提高基于多相过一硫酸盐（PMS）的类芬顿反应的效果，但仍然是一个严峻的挑战。在本研究中，富电子Ru双原子位点成功固定在氮掺杂碳(Ru 2 N 6 -C)上，用于水净化中的PMS活化。富电子Ru双原子位点的存在不仅为PMS提供了更多电子，而且有利于催化剂表面形成Yeager吸附构型，增强O─O键断裂，导致•SO 4 −增加和•OH 的产生。此外，Ru 2 N 6 -C催化剂表现出优异的耐久性和可靠性，实现了萘普生降解的超高效率，周转频率为153.95 min -1 M -1 。进一步开发了用于废水净化的膜反应器，有望通过金属双原子位点碳基催化剂的设计提供控制水污染的可行方法。
更新日期：2023-09-13
中文翻译：
用于增强水净化的富电子钌双原子位催化剂的高效过一硫酸盐活化
通过合理调整配位环境并在单原子催化剂中构建更多电子富集的活性位点，可以有效提高基于多相过一硫酸盐（PMS）的类芬顿反应的效果，但仍然是一个严峻的挑战。在本研究中，富电子Ru双原子位点成功固定在氮掺杂碳(Ru 2 N 6 -C)上，用于水净化中的PMS活化。富电子Ru双原子位点的存在不仅为PMS提供了更多电子，而且有利于催化剂表面形成Yeager吸附构型，增强O─O键断裂，导致•SO 4 −增加和•OH 的产生。此外，Ru 2 N 6 -C催化剂表现出优异的耐久性和可靠性，实现了萘普生降解的超高效率，周转频率为153.95 min -1 M -1 。进一步开发了用于废水净化的膜反应器，有望通过金属双原子位点碳基催化剂的设计提供控制水污染的可行方法。
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