Accelerated photocatalytic degradation of tetracycline hydrochloride over CuAl2O4/g-C3N4 p-n heterojunctions under visible light irradiation

Spinel CuB2O4 (B = Fe, Cr, and Al) Oxides for Selective Adsorption of Congo Red and Photocatalytic Removal of Antibiotics

“…At present, there are many effective means for the degradation of dyes and antibiotics, including photocatalysis, thermal catalysis, electrocatalysis, piezoelectric catalysis, membrane separation, adsorption, and so on. − Among these technologies, photocatalysis and adsorption are two commonly used methods for the degradation of antibiotics and dyes, and the photocatalytic activity and adsorption capacity are related to the semiconductor materials. − Some semiconductor materials have both photocatalytic activity and adsorption capacity, so the synergistic effect of photocatalysis and adsorption is helpful to improve the degradation of dyes and antibiotics by semiconductor materials. , …”

Extrasmall Ligand-Free Pt Nanoparticles as Dual-Function Catalysts for Methanol-Assisted Water Splitting Systems

“…Noble metal nanoparticles (NPs) have various applications in catalysis, sensor devices, and energy conversion. − Generally, the decreased size of NPs would promote the catalytic activity because of the largely increased surface-to-volume ratio (i.e., more surface active sites). , However, the synthesis of those small-sized metal NPs encounters difficulties more or less . The commonly used strategy is the colloidal synthetic method which utilizes ligands (capping agents or surfactants) to stabilize the metal NPs and simultaneously regulate the size of NPs. − However, the ligands employed in the colloidal synthesis process would be strongly adsorbed on the surface of the metal NPs, giving rise to incomplete exposure of catalytically active sites. , While the conventional impregnation/hydrogen reduction method can easily prepare surface-clean NPs, the size of the NPs tends to be large and uneven . As a consequence, ligand-free synthesis of ultrasmall-sized NPs has attracted serious attention in the past several years. − For instance, Zou et al recently applied a photodeposition method to deposit Bi and Pd clusters on the TiO 2 support with the assistance of photogenerated electrons. , This synthesis process does not require the use of any ligands.…”

Enhanced visible-light-driven RhB removal with a Mo–Ni bimetallic sulfide/g-C3N4 nanosheet Schottky junction

“…4–6 Unfortunately, bulk g-C 3 N 4 usually suffers problems of insufficient active sites and a high recombination rate of photogenerated electron–hole pairs, which greatly limits its development and practical application. 7–9 The construction of a heterojunction has been proved to be an effective strategy to improve the efficiency of charge separation, and great progress has been made in water splitting and pollutant degradation. 10–12 Therefore, designing a heterojunction with efficient carrier separation and accumulation is crucial to g-C 3 N 4 -based photocatalysts for organic pollutant degradation.…”