Semiconductor based photocatalysts for detoxification of emerging pharmaceutical pollutants from aquatic systems: A critical review

2D/2D g-C3N4/1T-MoS2 Nanohybrids as Schottky Heterojunction Photocatalysts for Nuclear Wastewater Pretreatment

“…As a metal-free polymer semiconductor material, g-C 3 N 4 has a π-conjugated electronic structure due to the existence of sp 2 hybrid carbon and nitrogen, which leads to its application prospect in photochemistry. , However, like almost all semiconductors, g-C 3 N 4 also suffers from the innate drawback of carrier recombination, which reduces the photocatalytic quantum efficiency. , The semiconductor/metal heterojunction, also known as the Schottky barrier, is widely served to accelerate the spatial separation of electron and hole, and the principle is that electrons are transferred from the semiconductor to the conductor due to the alignment of Fermi energy levels, thus inhibiting carrier recombination. − For example, Cheng et al designed the g-C 3 N 4 /Au heterojunction, which increased the catalytic efficiency by 63.9% . Similar excellent works such as g-C 3 N 4 /Ag, , g-C 3 N 4 /Pt, g-C 3 N 4 /Bi, etc., have also been reported.…”

“…24,25 However, like almost all semiconductors, g-C 3 N 4 also suffers from the innate drawback of carrier recombination, which reduces the photocatalytic quantum efficiency. 26,27 The semiconductor/metal heterojunction, also known as the Schottky barrier, 28 is widely served to accelerate the spatial separation of electron and hole, and the principle is that electrons are transferred from the semiconductor to the conductor due to the alignment of Fermi energy levels, thus inhibiting carrier recombination. 29−34 For example, Cheng et al designed the g-C 3 N 4 /Au heterojunction, which increased the catalytic efficiency by 63.9%.…”

Ultrafast conversion of carcinogenic 4-nitrophenol into 4-aminophenol in the dark catalyzed by surface interaction on BiPO4/g-C3N4 nanostructures in the presence of NaBH4

“…9,10 In this regard, over the last decades, semiconductor catalysts have attracted wide attention for removing environmental pollutants or/and converting them into useful compounds for industrial use. 11,12 Numerous semiconductor materials with appropriate physicochemical or/and photochemical properties have been widely developed and used for the catalytic and photocatalytic transformation of compounds. 13,14 g-C 3 N 4 has been considered as one of the most successful pconjugated polymers over the last decades, due to its high stability, good absorption in the visible light and photoefficiency.…”

Green Synthesis of CS-TiO2 NPs for Efficient Photocatalytic Degradation of Methylene Blue Dye

“…Semiconducting photocatalysts based on nanoparticles (NPs) have a huge potential for AOP-based wastewater treatment. Nanomaterials, such as nanocrystalline transition-metal oxides, have a considerable standard of reactivity, a wide range of functionalization adaptability, a huge surface area, and other size-dependent features [15][16][17]. Numerous semiconducting NPs, such as ZnO, CuO, TiO 2 , NiO, SnO 2 , and others, have been used as photocatalysts for the removal of organic dyes [18][19][20][21][22][23].…”