Green synthesis of Monteponite CdO nanoparticles by Agathosma betulina natural extract

Green synthesis of Co3O4nanoparticles viaAspalathus linearis: Physical properties

“…The precipitate was then separated from the aqueous extract, first by decanting then by centrifuging at 1000 rpm 3 times for 10 min each over successive additions of de-ionized water to wash the precipitate of any residual aqueous extract. As the synthetized oxides-based nanoparticles by green process are generally amorphous, an annealing was necessary to induce an effective crystallization (23)(24)(25)(26)(27)(28)(29)(30)(31)(32). In this case, the asobtained centrifuged precipitate was heated at 90°C for 90 min to remove bio-compounds in excess.…”

“…Figure 7 shows the typical XPS spectrum of the annealed Cobalt oxide nanoparticles. (28)(29)(30)(31)(32); the mechanism of formation of such nanoparticles is not understood and is being investigated using in situ and ex situ High Performance Liquid Chromatography and Liquid Chromatography Mass Spectrometry. As mentioned previously, A. Linearis leaf extract contains, among others, two unique phenolic compounds: aspalathin (a dihydrochalcone C-glucoside) and aspalalinin (a cyclic dihydrochalcone).…”

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

“…Different molar stoichiometric amounts (1,2,10,20) of each fuel was added to the solution and the mixture was stirred until a suspension was formed. It should be noted that for calculating the required amounts of starch and poly(vinyl alcohol) fuels, weights of their monomers were taken into account.…”

Physical properties of CdO nanoparticles synthesized by green chemistry via Hibiscus Sabdariffa flower extract

“…The use of such environmentally benign methodologies based on plants' extract, bacteria, and fungi for the synthesis of nanoparticles offers numerous benefits of compatibility for pharmaceutical and biomedical applications especially [14e16]. These bio nano-synthesis methodologies are being explored extensively [12,21]. This approach has the merit of generating a minimum of waste if not zero-byproduct, no usage of harmful reduction/oxidizing agents, neither standard acid/base compounds nor elevated temperatures [22e27].…”