Designing 3D‐MoS<sub>2</sub>Sponge as Excellent Cocatalysts in Advanced Oxidation Processes for Pollutant Control
書誌事項
- 公開日
- 2020-06-04
- DOI
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- 10.1002/ange.202006059
- 10.1002/anie.202006059
- 公開者
- Wiley
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説明
<jats:title>Abstract</jats:title><jats:p>3D‐MoS<jats:sub>2</jats:sub>can adsorb organic molecules and provide multidimensional electron transport pathways, implying a potential application for environment remediation. Here, we study the degradation of aromatic organics in advanced oxidation processes (AOPs) by a 3D‐MoS<jats:sub>2</jats:sub>sponge loaded with MoS<jats:sub>2</jats:sub>nanospheres and graphene oxide (GO). Exposed Mo<jats:sup>4+</jats:sup>active sites on 3D‐MoS<jats:sub>2</jats:sub>can significantly improve the concentration and stability of Fe<jats:sup>2+</jats:sup>in AOPs and keep the Fe<jats:sup>3+</jats:sup>/Fe<jats:sup>2+</jats:sup>in a stable dynamic cycle, thus effectively promoting the activation of H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>/peroxymonosulfate (PMS). The degradation rate of organic pollutants in the 3D‐MoS<jats:sub>2</jats:sub>system is about 50 times higher than without cocatalyst. After a 140 L pilot‐scale experiment, it still maintains high efficiency and stable AOPs activity. After 16 days of continuous reaction, the 3D‐MoS<jats:sub>2</jats:sub>achieves a degradation rate of 120 mg L<jats:sup>−1</jats:sup>antibiotic wastewater up to 97.87 %. The operating cost of treating a ton of wastewater is only US$ 0.33, suggesting huge industrial applications.</jats:p>
収録刊行物
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- Angewandte Chemie
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Angewandte Chemie 132 14072-14080, 2020-06-04
Wiley