Abstract: The present invention provides a process for the preparation of phosphor aerogel of uniform size having high porosity, low density; high thermal insulation and high luminescence, which is useful for various applications like lighting, display, sensing and other applications. More specifically, the present invention provides a simple and versatile process for the formation of monolithic gel, at room temperature, which on further drying at supercritical temperature and pressure result in dry aerogel.

Abstract: The present invention provides a process for the preparation of phosphor aerogel of uniform size having high porosity, low density; high thermal insulation and high luminescence, which is useful for various applications like lighting, display, sensing and other applications. More specifically, the present invention provides a simple and versatile process for the formation of monolithic gel, at room temperature, which on further drying at supercritical temperature and pressure result in dry aerogel. Further, annealing under mild reduced atmosphere from 1000°-1400° C. not only retains the porous network with uniform size particles but also crystallizes to form a phosphor aerogel having brightest luminescence with bulk density as low as 100 kg m-3, and strong enough to support a weight much higher than its own weight.

Abstract: Zinc peroxide nanoparticles, used for arsenic and chromium removal, were synthesized using zinc acetate di-hydrate as precursors in ammonical water medium at room temperature.

Abstract: The present invention provides low cost and highly effective method for the removal of arsenic and Cr(III&VI) from contaminated water using zinc peroxide nanoparticles (20±5 nm) capped with glycerol/PVP/TEA up to the permissible range of drinking water. As Arsenic and chromium occurs naturally in the earth's crust. When rocks, minerals, and soil erode, they release arsenic and chromium into groundwater. Arsenic and chromium occurs naturally in varying amounts in groundwater in various parts of country from ppb level to ppm level. The average concentration of arsenic and chromium as per USEPA standard in drinking water it is 10 parts per billion and 0.05 ppm (50 ppb) respectively. In drinking water the level of chromium is usually low as well, but contaminated water may contain the dangerous Cr(III&VI). Although Cr(III) is an essential nutrient for humans and shortages may cause heart problems, disruptions of metabolisms and diabetes.

Abstract: The present invention provides low cost and highly effective method for the removal of arsenic and Cr(III&VI) from contaminated water using zinc peroxide nanoparticles (20±5 nm) capped with glycerol/PVP/TEA upto the permissible range of drinking water. As Arsenic and chromium occurs naturally in the earth's crust. When rocks, minerals, and soil erode, they release arsenic and chromium into groundwater. Arsenic and chromium occurs naturally in varying amounts in groundwater in various parts of country from ppb level to ppm level. The average concentration of arsenic and chromium as per USEPA standard in drinking water it is 10 parts per billion and 0.05 ppm (50 ppb) respectively. In drinking water the level of chromium is usually low as well, but contaminated water may contain the dangerous Cr(III&VI). Although Cr(III) is an essential nutrient for humans and shortages may cause heart problems, disruptions of metabolisms and diabetes.

Abstract: The present invention relates to a system for monitoring properties of a medium by fiber optics. The present invention particularly relates to a system of fiber optics for monitoring layer thickness of immiscible liquids for industrial applications and a method thereof.

Abstract: A fiber optic sensor for monitoring point temperature of in situ reactions in remote, based on the principle of guiding light by means of total internal reflection (TIR) occurring in a right-angled prism, mounted on a glass capillary tube comprises isopropyl alcohol in it and rises due to increase in temperature and touches the prism surface thereby preventing the occurrence of TIR thus reducing the level of output optical signal detected.

Abstract: The present invention relates to a system for monitoring properties of a medium by fiber optics. The present invention particularly relates to a system of fiber optics for monitoring layer thickness of immiscible liquids for industrial applications and a method thereof.

Abstract: The present invention provides an intensity modulated optical fiber temperature switching immersion probe for remote temperature monitoring and switching of an industrial process. The present invention also provides a method for remote sensing of temperature.

Abstract: The present invention provides an intensity modulated optical fiber temperature switching immersion probe for remote temperature monitoring and switching of an industrial process. The present invention also provides a method for remote sensing of temperature.

Abstract: The present invention provides an intensity modulated optical fiber temperature switching immersion probe for remote temperature monitoring and switching of an industrial process. The present invention also provides a method for remote sensing of temperature.