Nanocomposites of ternary mixed metal oxides (Ag2O/NiO/ZnO) used for the efficient removal of organic pollutants

Cellular uptake of metal oxide-based nanocomposites and targeting of chikungunya virus replication protein nsP3

“…Furthermore, a binary N/Z (NiO:ZnO = 1:1) nanocomposite was synthesised using the sol-gel method and reacted with different molar ratios of silver nitrate and sodium hydroxide to achieve ternary Ag2O/NiO/ZnO nanocomposites i.e., A/N/Z-1 (10% Ag2O), A/N/Z-2 (20% Ag2O), and A/N/Z-3 (30% Ag2O). The particle size of N/Z nanocomposite is 31.59±5.03 nm, and the size of Ag2O nanoparticles in A/N/Z-3 nanocomposite is 5.92±1.36 nm in accordance with the reported data reported by Bhatia and Nath, 2022 [43]. According to the BET model, the surface area of Ag/NiO nanocomposites and octahedron NiO is between 49 and 53 m 2 g -1 , with an average pore size between 2.26 to 2.43 nm [44].…”

“…XPS investigation confirms the oxidation states of elements in Ag/NiO nanocomposites i.e., Ag 0 , Ni 2+ and O 2+ [44]. Further, it is also confirmed Ag +1 , Ni 2+ , Zn 2+ , and O 2+ states in nanocomposites Ag2O/NiO/ZnO [43]. XRD and XPS studies established the presence of Ag in Ag/NiO and Ag2O in A2O/NiO/ZnO nanocomposites.…”

“…Synthesis and characterization of Ag/NiO nanocomposites [AN-5% (5% Ag), AN-10% (10% Ag), AN-15% (15% Ag) and NiO], and Ag2O/NiO/ZnO [A/N/Z-1 (10% Ag2O), A/N/Z-2 (20% Ag2O), A/N/Z-3 (30% Ag2O) and N/Z] ternary nanocomposites [43,44] was done using the protocol of Bhatia and Nath, 2021 and Bhatia and Nath, 2022 respectively [43,44]. All of the chemicals, solvents and details of methodology used for the characterisation of the nanocomposites are as reported by Bhatia and Nath, 2021 and Bhatia and Nath, 2022 respectively [43,44]. The schematic routes for the synthesis of nanocomposites are illustrated in Fig.…”

“…Octahedron NiO was prepared by direct calcination of nickel nitrate hexahydrate at 300 °C for 3 h (at a heating rate of 2 °C min -1 ) [43]. Further, three Ag/NiO composites [AN-5% (5% Ag), AN-10% (10% Ag) and AN-15% (15% Ag)] were synthesized as described below: 200 mg (26.77 mM) of octahedron NiO and different amounts of silver nitrate (Supplementary Table ST1) were mixed in 100 mL of water and sonicated for 1 h [43]. Further, trisodium citrate dihydrate (5 mL) and sodium borohydride (5 mL) were introduced under constant nitrogen purging and stirred for 30 min to reduce silver nitrate (in ice bath).…”

“…XRD and XPS studies established the presence of Ag in Ag/NiO and Ag2O in A2O/NiO/ZnO nanocomposites. XRD, XPS, TEM with size and BET images of the most active nanocomposites, i.e., AN-5% (5% Ag) and A/N/Z-3 (30% Ag2O) are reproduced in the supplementary file [43,44].…”