Photocatalysis, photoinduced enhanced anti-bacterial functions and development of a selective m-tolyl hydrazine sensor based on mixed Ag·NiMn₂O₄ nanomaterials

Abstract

Photocatalytic dye degradation efficiency of Ag·NiMn2O4 at pH 4 was 91%; at pH 9, 77% and 95% in presence of H2O2 and at pH 7, 50%. Assembled Ag·NiMn2O4 nanomaterials/binder/GCE, as m-THyd sensor showed considerable sensitivity, DL, LDR, response time, reproducibility etc.

Highly sensitive and efficient hydrazine sensor probe development based on MoO3/CuO/ZnO ternary mixed metal oxide nano‐composites for sustainable environment

“…These reactions are taken place in bulk-solution or air/liquid interface or surrounding air due to the low carrier concentration, which probably increased the resistance of material surface as well as decreased the conductivity. [43][44][45] The analyte sensitivity towards MoO 3 /CuO/ZnO nanomaterials could be attributed to the high oxygen deficiency and defect density, which leads to increase the oxygen adsorption for forming active species as O 2 − , then O − and finally OH − . The larger the amount of oxygen adsorbed on the MoO 3 /CuO/ZnO nanomaterials surface, the larger the oxidizing capability.…”

“…The lattice of the oxide host causes are excellent candidates for photocatalytic applications, environmental protections, toxin sensor, an efficient antibacterial agent against MDR pathogenic bacteria as well as an industrial sterilization material. [2][3][4][5][6][7] Hydrazine is an environmental toxin, which is a carcinogenic, poisonous, hazardous, cyanogenetic, and nephrotoxic material. [8] Many applications of hydrazine hydrates are found in insecticides, regulators in plantgrowth, dyes as well as photographic industries, drug as well as pharmaceuticals and polymer industry, agroindustries, rocket fuel, space craft's fuel, and explosives.…”

“…[34] Generally, doped materials have employed a great deal of consideration due to their chemical, structural, physical, and optical properties in terms of large-active surface area, high-stability, high porosity, and permeability, which directly depends on the structural morphology, prepared by reactant precursors with co-precipitation method in basic medium at room temperature. [2][3][4][5][6][7] This technique has several advantages including facile preparation, accurate control of the reactant temperature, easy to handle, one-step reaction, and high-porosity as well as porous natures of ternary doped materials compared to un-doped counterparts. Optical, morphological, electrical, and chemical properties of ternary nanomaterials are of huge significance from the scientific aspect compared to other un-doped materials.…”

Photocatalytic performance, anti-bacterial activities and 3-chlorophenol sensor fabrication using MnAl2O4·ZnAl2O4 nanomaterials

“…The super oxide radicals are also formed in these photocatalytic reactions, which also contributes to MV dye degradation. The proposed photocatalytic reactions can be summarized as below,[34][35] Access Article. Published on 23 August 2021.…”

“…The excellent photocatalytic activity of the MnAl 2 O 4 •ZnAl 2 O 4 observed is due to the reduced recombination rate of electron-hole on trimetallic nanostructured formation, as revealed by the PL intensity. In summary, the trimetallic oxide nanocomposites are promising photocatalyst materials due to the mixing of heterometals in the nanoassembly 15,28,[34][35][36]. …”