Semiconductor-oxides nanotubes-based composite particles useful for dye-removal and process thereof

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United States of America Patent

PATENT NO 9993814
SERIAL NO

14428131

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Abstract

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Semiconductor-oxide nanotubes-based composite particles are useful for dye-removal. A method involves an ion-exchange mechanism operating under a dark-condition in an aqueous solution, for the processing of products consisting of the nanotubes of semiconductor-oxides deposited on, anchored to or attached to the surface of fly ash particles and metal-oxide (magnetic and non-magnetic) nanoparticles. The resulting micro-nano and nano-nano integrated composite particles can be used in the removal of an organic synthetic-dye from an aqueous solution and industry effluent via a surface-adsorption process, involving ion-exchange and electrostatic-attraction mechanisms. The composite particles can be recycled for the next cycle of dye-adsorption by decomposing the previously adsorbed dye on their surfaces via the use of either noble-metal-deposited or magnetically separable magnetic photocatalysts and exposure to ultraviolet (UV) or solar-radiation.

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COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCHANUSANDHAN BHAWAN 2 RAFI MARG NEW DELHI 110001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jose, Manu Kerala, IN 13 95
Karunakaran, Remya Kerala, IN 2 2
Narayani, Harsha Kerala, IN 2 2
Padinhattayil, Hareesh Kerala, IN 2 2
Shukla, Satyajit Vishnu Kerala, IN 4 4

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