Trends in photocatalytic degradation of organic dye pollutants using nanoparticles: A review

Magnetic Field Effect on Photocatalytic Dye Degradation: A Review

“…Metal-based Reproduced with permission [124] from Copyright @Elsevier 2021 catalysts like platinum, gold, and silver function as cocatalysts, enhancing charge carrier separation and facilitating electron transfer during the degradation process. [128] Metal sulfides such as zinc sulfide (ZnS) and cadmium sulfide (CdS) absorb visible light, initiating electron-hole pair formation. These excited charge carriers participate in redox reactions, promoting efficient dye degradation on the surface of the material and increasing the light absorption ability making them effective photocatalysts for environmental remediation.…”

“…Photo catalysts exist beyond these materials, encompassing metals, metal sulfides, transition metal compounds, carbon‐based materials, and perovskite‐based materials. Metal‐based catalysts like platinum, gold, and silver function as cocatalysts, enhancing charge carrier separation and facilitating electron transfer during the degradation process [128] . Metal sulfides such as zinc sulfide (ZnS) and cadmium sulfide (CdS) absorb visible light, initiating electron‐hole pair formation.…”

“…The various photocatalysts explored for the dye degradation include Titanium dioxide (TiO 2 ), Zinc oxide (ZnO), Tungsten trioxide (WO 3 ), Bismuth vanadate (BiVO 4 ), Graphitic carbon nitride (g-C 3 N 4 ), Perovskite-based materials Metal-organic frameworks (MOFs) and magnetic nanoparticles. [11] Among these, magnetic nanoparticles are unique in photocatalysis due to their ability to be easily recovered using an external magnetic field, facilitating catalyst recycling. This feature enhances their practicality in applications such as water treatment, where pollutant removal efficiency is crucial.…”

Enhanced photocatalytic performance by ZnO/Graphene heterojunction grown on Ni foam for methylene blue removal

“…Poor quality drinking water is a problem that is associated with 80% of childhood illnesses and 50% of child deaths worldwide [2]. Among water contaminants, organic dyes play a leading role: around 100,000 different types of dyes are produced annually, totaling more than 700,000 tons, with approximately 100 tons being dumped [3,4]. In addition to many of them being carcinogenic and dangerous for humans [5,6], they have good stability in environmental conditions [7] and cause, among other drawbacks, loss of transparency, reduction in the penetration of sunlight, retard biological activity of plants and animals, increase chemical oxygen demand (COD) and biochemical oxygen demand (BOD), etc.…”

Functional Photocatalysts: Material Design, Synthesis and Applications

“…These dyes, infiltrating water sources for drinking, pose carcinogenic threats to human health [ 38 ]. Employing nanomaterials like semiconductors for the photocatalytic breakdown of such dye contaminants offers a potential solution [ 39 ]. Wang et al (contribution 8) utilize a mechanochemical activation-assisted solid-state reaction (MAS) to create LuFe 1−x Co x O 3 powders (where x = 0, 0.05, 0.1, 0.15).…”