Direct Z-scheme of n-type CuS/p-type ZnS@electrospun PVP nanofiber for the highly efficient catalytic reduction of 4-nitrophenol and mixed dyes

Abstract

Z-type CuS/ZnS@PVP nanofibers are synthesized for the photocatalytic reduction of 4-nitrophenol and for mixed-dyes degradation under mild conditions.

Rational construction of ZnO/CuS heterostructures-modified PVDF nanofiber photocatalysts with enhanced photocatalytic activity

“…). 54,55 The excellent electrochemical, mechanical, heat-resistance, and chemical stability of polyvinylidene fluoride. However, a substance that is frequently employed in polymer membranes, makes PVDF nanofiber membranes the perfect photocatalytic carrier.…”

“…According to reports, a variety of materials have been considered photocatalytic carriers (polymers, ceramics, alumina, activated carbon, etc.). 54,55 The excellent electrochemical, mechanical, heatresistance, and chemical stability of polyvinylidene uoride. However, a substance that is frequently employed in polymer membranes, makes PVDF nanober membranes the perfect photocatalytic carrier.…”

Cation exchange doping by transition and non-transition metals: embracing luminescence for band gap tunability in a ZnS lattice

“…P-type doping involves introducing elements that create electron vacancies or ''holes'' in the crystal lattice, leading to a positive charge carrier. 30 N-type doping involves introducing elements that introduce excess electrons into the crystal, resulting in negative charge carriers. 31 This modification in charge carriers can impact the material's electrical behaviour, making it useful for various electronic applications.…”

Enhanced photocatalytic activity of modified black phosphorus-incorporated PANi/PAN nanofibers

“…49–52 The incorporation of the powdered form of photocatalysts into the electrospun NFs is also a new strategy not only to enhance the photocatalytic activity but also to overcome the drawbacks of the photocatalytic powdered forms namely aggregation, photocorrosion, and hard recycling and separation. 53,54 Notably, the electrospun NFs have a high specific surface area and ultrathin thickness, offering many active sites leading to a decrease in the recombination of electron–hole carriers. 55,56…”

“…[49][50][51][52] The incorporation of the powdered form of photocatalysts into the electrospun NFs is also a new strategy not only to enhance the photocatalytic activity but also to overcome the drawbacks of the photocatalytic powdered forms namely aggregation, photocorrosion, and hard recycling and separation. 53,54 Notably, the electrospun NFs have a high specic surface area and ultrathin thickness, offering many active sites leading to a decrease in the recombination of electron-hole carriers. 55,56 Herein, the modied BPNs-incorporated PANi/PAN NFs (electrospun composite NFs) have been prepared with enhanced photocatalytic activity through the modication of BPNs with Ag/Au metals and GO and their incorporation into PANi/PAN NFs via an electrospinning process.…”