2024
DOI: 10.1021/acsestwater.3c00713
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Enhanced Peroxymonosulfate Activation by a Benzoquinone-Functionalized Carbon Nanotube Filter for Micropollutant Degradation

Shuizhen Zhang,
Fuqiang Liu,
Quanyuan Chen
et al.

Abstract: The utilization of redox-active quinone-like compounds to activate peroxymonosulfate (PMS) has become a viable method for decontaminating polluted water. However, redox-active compounds must be added ex situ as oxidant activators, which leads to secondary pollution. Herein, we present a rationally designed new carbon nanotube nanohybrid filter that is modified with benzoquinonecontaining diamine monomers (AQPDA) for the activation of PMS to achieve the efficient decomposition of micropollutants. The hybrid fil… Show more

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“…The electrochemical system usually exhibits extraordinary activation of reactive oxygen species (ROS) and other reactive radicals (e.g., • OH, SO 4 • , O 2 • , O 3 • , Cl • , H 2 O 2 , etc. ), favoring the elimination of organic pollutions. Additionally, ozone is a potent oxidant ( E 0 = 2.07 V vs SHE) that has excellent properties such as disinfection, decolorization, and sterilization . However, it should be noted that ozone alone is not efficient in decomposing to produce free radicals, and its use may lead to the formation of disinfection byproducts, thus contributing to inevitable water pollution. , By integrating ozone with various technologies to form combined methods such as heterogeneous catalytic ozone, ozone/UV, ozone/ultrasound, and electrolytic ozone, the direct ozone oxidation process can be feasibly transformed into an indirect oxidation mechanism, further enhancing the degradation efficiencies .…”
Section: Introductionmentioning
confidence: 99%
“…The electrochemical system usually exhibits extraordinary activation of reactive oxygen species (ROS) and other reactive radicals (e.g., • OH, SO 4 • , O 2 • , O 3 • , Cl • , H 2 O 2 , etc. ), favoring the elimination of organic pollutions. Additionally, ozone is a potent oxidant ( E 0 = 2.07 V vs SHE) that has excellent properties such as disinfection, decolorization, and sterilization . However, it should be noted that ozone alone is not efficient in decomposing to produce free radicals, and its use may lead to the formation of disinfection byproducts, thus contributing to inevitable water pollution. , By integrating ozone with various technologies to form combined methods such as heterogeneous catalytic ozone, ozone/UV, ozone/ultrasound, and electrolytic ozone, the direct ozone oxidation process can be feasibly transformed into an indirect oxidation mechanism, further enhancing the degradation efficiencies .…”
Section: Introductionmentioning
confidence: 99%