Continuous photocatalysis via photo-charging and dark-discharging for sustainable environmental remediation: Performance, mechanism, and influencing factors.
Continuous photocatalysis via photo-charging and dark-discharging for sustainable environmental remediation: Performance, mechanism, and influencing factors.
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通过光充电和暗放电进行连续光催化用于可持续环境修复：性能、机制和影响因素。
DOI：
10.1016/j.jhazmat.2021.126607
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发表时间：
2021-07
影响因子：
13.6
通讯作者：
Qing Hu
中科院分区：
文献类型：
--
作者：
Chi Zhang;Yi Li;Mengqiao Li;Danmeng Shuai;Xinyi Zhou;Xinyan Xiong;Chao Wang;Qing Hu
通过光充电和暗放电的连续放电呈现了传统放电的范式转变，需要连续光照来保持催化活性。这有望满足自然昼夜循环驱动的能源和环境可持续发展的日益增长的需求。在过去的十年中，在光-暗循环下，各种环境应用的连续光催化技术取得了重大进展。然而，缺乏一个系统的和批判性的审查基本的，但重要的信息，持续的环境修复，挑战强大的科学进步，这一技术的潜在的实际用途。在这里，已经首先介绍了涉及能量存储机制（空穴和电子存储）和表征（电子存储行为、释放行为和存储容量）的连续双稳态的一般描述。重要的是，在环境应用中的连续曝气的修复性能和机制进行了定性和定量论证，包括化学污染物的氧化和还原，微生物病原体灭活，和多功能处理。此外，影响其修复性能的关键因素进行了分析，第一次，从操作和环境的观点。还指出了在可持续环境修复领域的持续监测的充足机会，呼吁在未来做出更多的努力来填补目前的知识空白。
Continuous photocatalysis via photo-charging and dark-discharging presents a paradigm shift in conventional photocatalysis with the requirement of continuous illumination to maintain the catalytic activity. This is expected to meet the ever-increasing demand for sustainable development of energy and environment driven by natural day-night cycles. Substantial advances in continuous photocatalysis for various environmental applications under light-dark cycles have been witnessed during the last decade. However, there lacks a systematic and critical review on basic but important information of continuous photocatalysis for environmental remediation, challenging robust scientific progress of this technology towards potential practical use. Here, the general description of continuous photocatalysis involving energy storage mechanisms (hole and electron storage) and characterizations (electron storage behaviors, release behaviors and storage capacity) has been first introduced. Importantly, the remediation performance and mechanism of continuous photocatalysis for environmental applications are qualitatively and quantitatively demonstrated, including chemical pollutant oxidation and reduction, microbial pathogen inactivation, and multifunctional treatment. In addition, key factors influencing its remediation performance are analyzed, for the first time, from both operational and environmental views. The ample opportunities in the field of continuous photocatalysis for sustainable environmental remediation are also pointed out, calling for more efforts to fill current knowledge gaps in the future.