Cauliflower-like Nickel Sulfide Nanostructures: Preparation, Optical Properties, Catalytic and Photocatalytic Activities

Removal of Emerging Organic Pollutants by Zeolite Mineral (Clinoptilolite) Composite Photocatalysts in Drinking Water and Watershed Water

“…Numerous works in the literature have reported that TiO 2 [28], ZnO [29], SnO 2 [30], g-C 3 N 4 [31], MoS 2 [32], and Bi-based semiconductors [33,34] could be used as photocatalysts to decompose organic pollutants. Moreover, some kinds of metal-oxidesemiconductor (MOS) and their related sulfide, such as CuO/CuS [35,36], NiO/NiS [37,38], SnO 2 /SnS 2 [39,40], etc., can also play the role of photocatalyst in degrading organics under suitable light irradiation. However, pristine MOS photocatalysts such as TiO 2 and ZnO have the inherent drawbacks of fast electron/hole pairs recombination and can only be motivated by UV light irradiation owing to their wide bandgap energies.…”

Nanocosmos of catalysis: a voyage through synthesis, properties, and enhanced photocatalytic degradation in nickel sulfide nanocomposites

“…The study by Khosravi et al 14 led to the synthesis of nickel sulfide nanoparticles in an eco-friendly manner using a hydrothermal process. An innovative sulfur source, 1-benzylidene thiosemicarbazide, was used along with nickel sulfide to create the nanoparticles.…”

“…The most commonly used semiconductor materials for photocatalysis are titanium dioxide, zinc oxide, and various metal sulfides. 14 Nickel sulfide (NiS) is a remarkable material in photocatalysis, outperforming other metal sulfides and well-known photocatalysts. NiS outperforms its competitors in various ways due to its unique electrical structure and high catalytic activity.…”

“…17 Compared to other well-known photocatalysts, its extraordinary properties become even more apparent. Compared to traditional photocatalysts like titanium dioxide (TiO 2 ), zinc oxide (ZnO), molybdenum disulde (MoS 2 ), cadmium sulde (CdS), or tin disulde (SnS 2 ), 1,10,14,[18][19][20][21][22][23][24] NiS exhibits better catalytic activity in visible light, accounting for a signicant fraction of the solar spectrum. Its ability to capture visible light broadens its application potential and overcomes a key restriction shared by many photocatalysts that absorb mostly UV light.…”

Engineering the optical properties of nickel sulphide thin films by zinc integration for photovoltaic applications

“…11,12 The hexagonal, P63/ mmc high-temperature phase-NiS and the low-temperature phase-NiS are the two potential phases of NiS (rhombohedral, R3m). 13 In contrast to the latter, the former is metallic. Under certain circumstances, the phase transition occurs with a 4% volume change between 282 and 380 °C.…”