Synthesis and characterization of novel spinel Zn 1.114 La 1.264 Al 0.5 O 4.271 nanoparticles

摘要: Abstract Novel spinel Zn 1.114 La 1.264 Al 0.5 O 4.271 nanoparticles were synthesized using low–temperature gel combustion method and characterized by XRD, XPS, FE–SEM, TEM, BET, UV–Vis, FT–IR fluorescence analyses. The XPS analysis revealed that the number of 2+ ions in h holes was ∼2.7 times greater than T d confirming compound not a mixture different metal oxides but it normal material. average crystallite size measured for sharpest peak at 2θ ≈ 33° XRD diagrams about 25 nm fuel/metals ratios 1:3 2:3, ∼15 nm 10:3 20:3. FE–SEM micrographs showed puzzle like, leaf spherical morphologies starch, poly(vinyl alcohol) glycerin fuels, respectively. Interestingly, with increasing ratio, calcination time decreased significantly from 24 h to 15 min. N 2 -physisorption data illustrated varying both fuel type pH solution affected BET surface areas pore volumes. band gap slightly (3.24 eV, smaller electron conductivity) those obtained starch fuels (3.11 3.12 eV, respectively). Accordingly, semiconductor can find promissing applications as catalysts (in chemical synthesis), electrocatalysis (cathodic anodic materials solar cells cells), ceramics high temperature catalytic reactions highly stable materials) adsorbents air/wastewater treatments).