Process for the preparation of metal sulfide nanoparticles
AssigneeCouncil of Scientific and Industrial Research
InventorsPriyabrata Mukherjee, Deendayal Mandal, Absar Ahmad, Murali Sastry, Rajiv Kumar
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Abstract
The process of the invention reports a new biological method, instead of chemical or physical methods, for preparing colloidal nano-sized metal sulphides using fungi.
Claims12
A process for the preparation of metal sulphide nano size particles, which comprises contacting wet fungus with a metal sulphate aqueous solution at temperature ranging between 15 to 40° C. for a period ranging between 2 to 120 hrs to obtain a composition containing metal sulphide nano size particles, and separating the fungus from the metal sulphide nano size particles to thereby obtain the metal sulphide nano size particles.
A process for the preparation of metal sulphide nano size particles, which comprises contacting wet fungus with an aqueous solution containing a combination of cadmium ions and a source of sulphur at a temperature ranging between 15-40° for a period ranging between 2 to 120 hours to obtain a composition containing metal sulphide nano size particles, and separating the fungus from the metal sulphide nano size particles to thereby obtain the metal sulphide nano size particles.
Dependencies are inferred from the claim text.