Raspberry-like CuWO4 hollow spheres anchored on sulfur-doped g-C3N4 composite: An efficient electrocatalyst for selective electrochemical detection of antibiotic drug nitrofurazone

Graphitic Carbon Nitride Nanosheets Decorated with Strontium Tungstate Nanospheres as an Electrochemical Transducer for Sulfamethazine Sensing

“…It may be due to the synergistic effect of SrWO 4 , g-C 3 N 4 , and π stacking interaction among SMZ with SrWO 4 /g-C 3 N 4 may improve the electrocatalytic oxidation capability toward SMZ detection . Also, the hybrid composite has a large surface area, more diffusion pathways, high capacitance, good conductivity, and a layer-like structure that accelerates the oxidation of SMZ on the SrWO 4 /g-C 3 N 4 surface …”

“…Recently, transition-metal tungstates (MWO 4 ; M = Ni, Co, Ce, La, and Cu) were considered prospective alternatives for existing noble metal-based electrodes in electrochemical energy storage, energy conversion, and sensing applications. − However, MWO 4 suffers from poor electrical conductivity and electrochemical stability. In addition, the as-prepared MWO 4 materials frequently degrade during prolonged cycling, resulting in poor sensing performances. − To address these issues, various approaches to support the active MWO 4 species with a conductive carbon support reduce aggregation and boost the electron/ion transport kinetics, which effectively enhances the sensing performances with high selectivity and durability. − Graphene has been distinguished as one of the best supports to anchor active MWO 4 species due to its ultrathin nature and high electrical conductivity. , Compared to graphene, graphitic carbon nanosheets (g-C 3 N 4 ) have recently gained attention in the scientific community due to their high surface area and unique porous networks. − Most specifically, g-C 3 N 4 is active in adjusting the electronic properties, which is a suitable support to anchor the dynamic mixed metal oxide species with enhanced selectivity and electrochemical stability. − Hence, the rational design of MWO 4 anchored g-C 3 N 4 hybrid with numerous electroactive sites and exceptional durability through a straightforward approach is attractive in sensing applications.…”

Electrochemical Behavior of a Copper Tungstate-Fabricated Disposable Strip for the Rapid and Real-Time Detection of Uric Acid

“…A nanostructure based on transition bimetal oxides is one of these alternations. − Copper-based bimetal oxides, including copper vanadate (CuV 2 O 6 ), copper molybdate (CuMoO 4 ), copper ferrite (CuFe 2 O 4 ), copper cobaltite (CuCo 2 O 4 ), and copper tungstate (CuWO 4 ), have long been studied for electrochemical sensing. Among them, tungstate-based nanomaterials have sparked a lot of attention because of their remarkable catalytic and electrical properties; humidity sensors, gas sensors, and lithium batteries are only a few of the applications. , CuWO 4 NPs, a well-known n-type semiconductor with a band gap of 2.25 eV, have been used in several applications. , CuWO 4 NPs have sparked a lot of attention in recent years because of their prospective applications in scintillation detectors, optical fibers, photo anodes, laser hosts, sensors, photoelectrolysis electrodes, and positive electrode preparation for lithium-based rechargeable batteries. , Several studies have described the crystal formation of CuWO 4 NPs, photoelectrochemical performance, and electrochemical, optical, electrical, magnetic, and ferroelectric capabilities. Moreover, creating a nanocomposite with a higher surface area, long-term sustainability, electrocatalytic activity, and renewability that can improve the electron-transport reaction kinetics is a test case …”

“…33,34 CuWO 4 NPs, a well-known n-type semiconductor with a band gap of 2.25 eV, have been used in several applications. 32,35 CuWO 4 NPs have sparked a lot of attention in recent years because of their prospective applications in scintillation detectors, optical fibers, photo anodes, laser hosts, sensors, photoelectrolysis electrodes, and positive electrode preparation for lithium-based rechargeable batteries. 36,37 Several studies have described the crystal formation of CuWO 4 NPs, photoelectrochemical performance, and electrochemical, optical, electrical, magnetic, and ferroelectric capabilities.…”

Photocatalytic Activity Enhancement of Graphitic Carbon Nitride Nanosheets by Modification with Ag33(4-MePhC≡C)22(Dppp)4 Nanoclusters

“…There is a fast-growing concern about environmental problems, which has stimulated intense research interest. − In the field of pollutant elimination, , photocatalytic degradation has emerged as a promising technology. , Graphitic carbon nitride (g-C 3 N 4 ) has a small direct band gap due to the π conjugation of sp 2 hybridization carbon and nitrogen in planes. It has drawn tremendous attention since its discovery. − However, g-C 3 N 4 stills suffers from a low surface area and rapid e – /h + recombination, which limits its further activity enhancement. , One promising strategy is to combine it with metal nanoparticles or nanoclusters to facilitate the charge/hole separation. − However, because of the poor affinity of metal nanoparticles toward g-C 3 N 4 , it is not readily accessible to load Ag onto g-C 3 N 4 . Meanwhile, it is highly challenging to synthesize compositionally uniform nanoclusters by traditional methods .…”