New Invention Profile
| Publication No: | IN202211040829 [India] | Application No: | 202211040829 |
| Title: | Silver/silver complex-polymer composite as an active ingredient for water treatment and process for the preparation thereof | ||
| Publication Date: | 19-01-2024 | File Date: | 12-07-2022 |
| Inventor(s): | Pal, Sukdeb; Panchal, Deepak; Dhodapkar, Rita S; Vijay, Ritesh | ||
| IPC Classification: | C02, B82, D06, A01 | ||
| Abstract: | The present invention provides a composite of a water insoluble or sparingly water-soluble silver/ silver complex (preferably nanosized) and a polymer (preferably cationic and water soluble) wherein the polymer is having N-substituted piperidine structure or N-substituted pyrrolidine structure with essentially replaceable anionic group, a mole ratio between the silver precursor to replaceable inorganic anion in the polymer is 1: 1-10, silver/silver complex is stabilized in the polymer matrix, an average particle diameter of the resultant particles of silver/silver complex-polymer nanocomposite is ranged from 2 nm to 10 μm, and Zeta potential of the nanocomposite is greater than Zero mV. The present invention also provides a rapid and facile synthesis method for preparing the water insoluble or sparingly water-soluble silver/ silver complex (preferably nanosized)-polymer composite wherein the method eliminates the chemical and physical work-ups such as use of any pre-synthesized nano precursors, does not require any extramural template or surfactant for stabilization of the nanoparticles formed in situ, and sophisticated instrumentation or special reaction condition such as an elevated temperature, inert atmosphere etc. The developed composite exhibits excellent antibacterial activity thereby capable of providing simultaneous coagulation and disinfection for treatment of contaminated aqueous medium, is a material that can remove COD, organics, and color from contaminated aqueous medium, is a material that may be used as an alternative to conventional inorganic coagulants for their complete or partial elimination or reduction of their concentration demand. | ||
CSIR-National Environmental Engineering Research Institute[CSIR-NEERI]
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: director[at]neeri[dot]res[dot]in
:91-712-2249999
:https://www.neeri.res.in
Industrial Applications
Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes]
Waste management [Environmental (Clean Tech)]
Water treatment [Environmental (Clean Tech)]