Reduced graphene oxide-based-composites for the purification of water

A technology of graphene and oxides, applied in nanotechnology for materials and surface science, other chemical processes, water/sewage treatment, etc., can solve problems such as cumbersome methods

Inactive Publication Date: 2013-09-11
INDIAN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The methods used in most previous methods of composite formation are relatively cumbersome

Method used

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  • Reduced graphene oxide-based-composites for the purification of water
  • Reduced graphene oxide-based-composites for the purification of water
  • Reduced graphene oxide-based-composites for the purification of water

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Embodiment

[0078] The examples that follow are provided to provide complete disclosure and description to those of ordinary skill in the art as to how to make and evaluate the compounds, compositions, articles, devices and / or methods claimed herein, and are intended to serve as a complete disclosure of the present invention. example, and in no way limits the scope of the inventors' contemplated inventions. Efforts have been made to ensure accuracy with respect to quantities (eg, amounts, temperature, etc.), but some errors and deviations should be accounted for. Unless indicated otherwise, parts are parts by weight, temperature is in °C or is at ambient temperature, and pressure is at or near atmospheric.

[0079] 1. Preparation of RGO-metal / metal oxide nanocomposites

[0080] An exemplary preparation of GO from graphene powder is based on a modified Hummers method reported by Kovtyukhova et al. (Hummers, W.S., Offeman, R.E., Preparation of graphitic oxide. J. Am. Chem. Soc. 1958, 80 ,...

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Abstract

A nanocomposite is disclosed comprising reduced graphene oxide (RGO) and at least one of a metal and an oxide of the metal. Also disclosed is an adsorbent comprising the nanocomposite and an adsorbent comprising the nanocomposite bound to silica by using chitosan. A filtering device comprising the nanocomposite and / or the adsorbent is also disclosed. Also disclosed are methods for producing the nanocomposites, adsorbents, and filtering devices described herein.

Description

[0001] background technical field [0002] The present disclosure relates to nanocomposites, and in particular to graphene-based nanocomposites. technical background [0003] Chemical waste generated in industrial, domestic and agricultural activities continues to pollute water. In addition to pollutants produced by human activities, natural pollutants in water sources have also brought great harm. [0004] Various technologies have been invented to alleviate the water pollution problem. A variety of methods have been employed and developed to separate waste materials from contaminated water, including absorption, sedimentation, membrane separation, amalgamation and ion exchange. Of all these methods, absorption has proven to be more economical and efficient, especially for removal of contaminants from dilute solutions. To separate pollutants from water, a large number of absorbents have been developed. The efficacy and utility of an absorbent depends largely on the affi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20
CPCB01J20/103B01J20/02B01J20/06B01J20/205B01J20/28007B01J20/28016B01J20/3204B01J20/3212B01J20/3236B01J2220/56B82Y30/00C02F1/281Y10T428/31678Y10T428/31681Y10T428/31703
Inventor P·泰勒皮尔S·M·玛利耶凯尔S·T·斯瑞尼瓦桑
Owner INDIAN INST OF TECH
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