King Saud University

Khaled M Ortashi

Awatif Ahmed Hendi

Manal Ahmed Awad

Nada Elzain Eisa

Nada E Eisa

The present invention discloses a method for preparing noble metal nanoparticles, comprising the following steps: a) preparing anfruit extract; b) preparing anextract; c) mixing thefruit extract and theextract for preparing a mixed extract; d) providing an aqueous solution containing a noble metal compound dissolved therein; e) mixing the mixed extract obtained in step c) and the aqueous solution of step d) to form noble metal nanoparticles; noble metal nanoparticles obtained thereby and their use.

Noble metal nanoparticles, method for preparing the same and their application

The present invention discloses a method for preparing porous noble metal oxide nanoparticles, comprising the following steps: a) preparing anfruit extract; b) preparing anextract; c) mixing thefruit extract and theextract for preparing a mixed extract; d) providing an aqueous solution containing a noble metal compound dissolved therein; e) mixing the mixed extract obtained in step c) and the aqueous solution of step d); f) dropping a solution of sodium chloride to be mixture of step b); g) drying the mixture, in air or by vacuum, and h) calcining at a temperature between 100 to 900&#xb0; C., to get the porous noble metal oxide nanoparticles; porous noble metal oxide nanoparticles obtained thereby and their use.

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Riyadh, Saudi Arabia

Khaled M Ortashi