Indian Institute of Technology Madras

Indian Institute of Technology

Aquamall Water Solutions Limited

Thalappil Pradeep

Mohan Udhaya Sankar

Leelavathi Annamalai

Panikkanvalappil Ravindranathan Sajanlal

Biswajit Mondal

Anirban Som

Jyotirmoy Ghosh

N/a Anshup

Chaudhary Amrita

A Sreekumaran Nair

Appukuttan Nair Sreekumaran Nair

Anshup

Ananthu Mahendranath

Avula Anil Kumar

Amrita Chaudhary

Sandeep Bose

Thumu Udayabhaskara Rao

Tripti Ahuja

The process of reacting nanoscale ce-MoSnanosheets anchored on oxide support with lead in solution at room temperature whereby the reaction is rapid and spontaneous resulting in the formation of PbMoOSin the process of scavenging Pband Pbpresent in the solution.

Removal of lead from waste water using nanoscale MoS

The preparation of silver quantum clusters embedded in organic-templated-boehmite-nanoarchitecture (OTBN) and its use as a sensor for quantity of water flow measured by change of color in visible light upon flow of contaminated water have been provided. Silver quantum clusters-embedded OTBN are highly luminescent. Since the quantum clusters are embedded in the matrix, they are highly stable over a long period of time. The composition described here is utilized in the form of a device for 'visible/ultraviolet light color change-based detection' upon passage of water through a water purification device. Upon interaction with ions present in water, luminescent silver clusters undergo chemical transformation to AgS nanoparticles. The transformation is reflected in the form of visible color change (from pink to black) and luminescence quenching (from red emission to negligible luminescence).

Detection of quantity of water flow using quantum clusters

An adsorbent composition comprising a nanoscale shell of metal oxide or hydroxide on an organic-templated-boehmite-nanoarchitecture (OTBN) is provided. The nanoscale shell is prepared by impregnating OTBN with a metal or a non-metal ion, followed by in-situ hydrolysis of the deposited ion on the OTBN surface. The thickness of the shell is less than about 3 nm, which is less than the size of OTBN core. The number of layers of the shell is flexible, thereby leading to a multi-layer nanoscale hybrid composition. The adsorbent composition is capable of removing inorganic anions such as fluoride from water, with an increased adsorption capacity.

Multilayer organic-templated-boehmite-nanoarchitecture for water purification

An embodiment relates to a man-made object comprising a distinctive structure with a feature to identify the object, wherein the object has a size such that the object is observable under visible light, wherein the feature is embedded in or on the object and a size of the feature is such that the feature is not observable under visible light, wherein the feature comprises an attribute originating from the feature, and wherein the attribute defines the feature.

Multielement and multiproperty tagging

An embodiment relates to a composition comprising a noble-metal containing nanoparticle and a polymer located on a surface of the nanoparticle, wherein the polymer is a polycondensation product of a halogenated monomer. Other embodiments relate to the method of making a composition and providing antimicrobial treatment using the composition.

Organic polymer-inorganic fine particle antimicrobial composites and uses thereof

This invention relates to novel adsorbent compositions for adsorbing pesticides like chlorpyrifos and malathion. This composition consists of nanoparticles of gold/silver supported on activated alumina or magnesia in powder or other forms. This invention includes a device and a method for decontaminating water contaminated with pesticides. This device consists of a housing provided with an inlet and an outlet. The housing is loaded with nanoparticles of gold/silver supported on activated magnesia. Contaminated water is allowed to pass through the housing while pesticides are adsorbed by the composition. Decontaminated water flows out through the outlet.

Method for the preparation of adsorption compositions including gold or silver nanoparticles

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Chennai, India

Thalappil Pradeep