Cu-doped oxygen-rich vacancy MOFs derived perovskite for enhanced mineralization of refractory organics through synergistic non-radical species effects

Guan, Yu; Zhou, Guolang; Li, Lin; Jiang, Yexin; Yin, Jingzhou; Liu, Cheng; Zhang, Lili; Han, Qiaofeng; Ang, Edison Huixiang

doi:10.1016/j.seppur.2023.126072

Cited by 13 publications

(1 citation statement)

References 58 publications

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“…The introduction of Vo on CuO nanosheets has been widely acknowledged as a proficient strategy for chemically tailoring catalytic properties. − This strategic approach engenders an augmented adsorption energy for pollutants and concurrently reduces the energy barrier for the formation of active species . Furthermore, it has been established that the manipulation of Vo concentration can effectively modulate catalytic activities by altering the electronic properties of catalysts. , It is pertinent to underscore that a direct positive correlation exists between Vo concentration and catalytic activity .…”

Section: Introductionmentioning

confidence: 99%

Oxygen Vacancy-Laden Confinement Impact on Degradation of Metal Complexes

Pan,

Xu,

Hong

et al. 2024

ACS Appl. Mater. Interfaces

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Oxygen vacancies (Vo) have been recognized as the superior active site for PS-mediated environmental remediation; however, the formation and activation of Vo associated with the effects of chemical and spatial environments remain ambiguous. Herein, attributing to the low defect-formation energy of Vo in the presence of sulfonate groups, an in situ nucleating Vo-laden CuO nanosheet was deliberately fabricated inside the phase of a sulfonated mesoporous polystyrene substrate (Vo-CuO@SPM). The as-prepared nanocomposite demonstrated an excellent treatment efficiency toward metal complexes [Cu-EDTA as a case] with ignorable Cu(II) leaching, and it can be repeatedly employed for 25 recycles (not limited). Mechanistically, the electron transfer and the mass transport for PDS nonradical activation were proved to be substantially enhanced by the delocalized electrons and with the assistance of the microchannel environment. This work not only establishes insight into the formation of oxygen vacancies but also reveals the PS activation mechanism in the spatially confined sites.

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