Transition metal-based metal–organic frameworks for environmental applications: a review

Heterojunction photocatalysts for degradation of the tetracycline antibiotic: a review

“…Light-activated semiconductor-based photocatalysis represents the most promising green and eco-friendly technique for wastewater treatment (Liu et al 2019a ; López et al 2021 ; Saravanan et al 2020 ). It has received a lot of attention due to its high efficiency, low-cost, and outstanding stability (Peng et al 2021 ; Zhou et al 2019 ).…”

“…It has received a lot of attention due to its high efficiency, low-cost, and outstanding stability (Peng et al 2021 ; Zhou et al 2019 ). Electrons (e − ) and holes (h + ) are generated under light irradiation and migrate to the surface of photocatalyst (López et al 2021 ; Soni et al 2021 ), inducing redox reactions and forming of reactive oxygen species, such as superoxide radical (O 2 · − ), singlet oxygen ( 1 O 2 ), hydroxyl radical (OH · ), hydroperoxyl radical (HOO · ), and hydroperoxide (H 2 O 2 ). The reactive oxygen species with high oxidative and reductive activity can easily degrade organic and inorganic pollutant molecules.…”

Terephthalate and trimesate metal–organic frameworks of Mn, Co, and Ni: exploring photostability by spectroscopy

“…12 Owing to visible light response and excellent redox behavior, these MOF photocatalysts are being explored for CO 2 reduction, solar water splitting, photoreduction, photochemical transformations of small molecules, and photocatalytic degradation of organic pollutants. [13][14][15][16][17][18][19] One of the requirements for an efficient photocatalyst is its long-term photostability. Since the metalligand interactions in MOFs are coordinative, they are subjected to break under UV/visible irradiations.…”

Application of polyoxometalates in photocatalytic degradation of organic pollutants

“…The incorporation of POMs into MOFs has become an important direction for designing POM-based catalysts. [78][79][80][81] Fixing POMs on porous MOF structures can increase the surface area while maintaining their excellent catalytic performance. There are two strategies for incorporating POMs into MOF structure: 1) introducing POMs as a sub-unit to construct MOF structure; 2) encapsulating POMs into the framework to form a host-guest structure.…”