In SARS-CoV-2, astrocytes are in it for the long haul.
In SARS-CoV-2, astrocytes are in it for the long haul.
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DOI：
10.1073/pnas.2209130119
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发表时间：
2022-07-26
影响因子：
11.1
通讯作者：
中科院分区：
文献类型：
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作者：
基于多相过一硫酸盐（PMS）的高级氧化工艺（AOPs）在污染物降解方面显示出巨大的潜力，但其大规模水处理应用的可行性尚未得到证实。在此，我们开发了一种简单的共沉淀法，用于规模化生产（约10 kg）的Cu-Fe-Mn尖晶石氧化物（CuFeMnO）。这样的催化剂具有丰富的氧空位和多晶断裂位点，这使其具有上级PMS催化能力。我们发现，工作活性物种和它们的贡献是高度依赖于目标有机污染物的性质。对于具有给电子基团的有机物（例如，- OH），高价金属物种主要负责污染物的降解，而对于具有吸电子基团的有机物（例如，- COOH和-NO2），羟基自由基（·OH）作为二次氧化剂也起着重要作用。我们表明，CuFeMnO-PMS系统是能够实现有效的和稳定的去除污染物的二级出水从城市污水厂在实验室和中试规模。并探讨了该工艺在大规模污水处理中的应用前景。本工作描述了一个机会，可规模化制备强大的尖晶石氧化物催化剂用于水净化，是有益的非均相PMS-AOP的实际应用。
Heterogeneous peroxymonosulfate (PMS)–based advanced oxidation processes (AOPs) have shown a great potential for pollutant degradation, but their feasibility for large-scale water treatment application has not been demonstrated. Herein, we develop a facile coprecipitation method for the scalable production (∼10 kg) of the Cu-Fe-Mn spinel oxide (CuFeMnO). Such a catalyst has rich oxygen vacancies and symmetry-breaking sites, which endorse it with a superior PMS-catalytic capacity. We find that the working reactive species and their contributions are highly dependent on the properties of target organic pollutants. For the organics with electron-donating group (e.g., -OH), high-valent metal species are mainly responsible for the pollutant degradation, whereas for the organics with electron-withdrawing group (e.g., -COOH and -NO2), hydroxyl radical (•OH) as the secondary oxidant also plays an important role. We demonstrate that the CuFeMnO–PMS system is able to achieve efficient and stable removal of the pollutants in the secondary effluent from a municipal wastewater plant at both bench and pilot scales. Moreover, we explore the application prospect of this PMS-based AOP process for large-scale wastewater treatment. This work describes an opportunity to scalably prepare robust spinel oxide catalysts for water purification and is beneficial to the practical applications of the heterogeneous PMS-AOPs.
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影响因子：
82.9
作者：
Wang L;Sievert D;Clark AE;Lee S;Federman H;Gastfriend BD;Shusta EV;Palecek SP;Carlin AF;Gleeson JG
通讯作者：
Gleeson JG
影响因子：
64.8
作者：
通讯作者：
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影响因子：
64.5
作者：
Chao, Chun-Cheih;Gutierrez-Vazquez, Cristina;Quintana, Francisco J.
通讯作者：
Quintana, Francisco J.
影响因子：
8.3
作者：
Qureshi, Adnan, I;Baskett, William, I;Shyu, Chi-Ren
通讯作者：
Shyu, Chi-Ren
DOI：
10.1038/s41580-021-00418-x
发表时间：
2022-01
期刊：
Nature reviews. Molecular cell biology
影响因子：
--
作者：
Jackson CB;Farzan M;Chen B;Choe H
通讯作者：
Choe H