3145 results about "Nanocellulose" patented technology
Filter
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Nanocellulose is a term referring to nano-structured cellulose. This may be either cellulose nanocrystal (CNC or NCC), cellulose nanofibers (CNF) also called nanofibrillated cellulose (MFC), or bacterial nanocellulose, which refers to nano-structured cellulose produced by bacteria.
The invention provides a preparation method of an oxidation nanocellulose adsorbing material. The preparation method comprises the following steps of conducting pretreatment and then cleaning cellulose; and under the catalytic action of 2, 2, 6, 6-tetramethyl piperidine-nitrogen-oxide and sodiumbromide, conducting an oxidation reaction on obtain cellulose under the action of an oxidizing agent, so that oxidation nanocellulose is obtained, wherein sodiumhypochlorite serves as the oxidizing agent; mixing the nanocellulose with an organic solution containing amino high molecules, then conducting centrifugation, then mixing the mixture with a cross-linking agent, and conducting a reaction, so that the oxidation nanocellulose adsorbing material is obtained. By means of the preparation method, the specific surface area of the cellulose is increased, the contactable performance of heavy metal pollutants and adsorbent is improved, the surface of the material can have a large number of adsorption functional groups, and heavy metal ions can be aggregated to the surface of the adsorbent from a sewagesystem through the complexation effect and the electrostatic effect. The invention further provides the oxidation nanocellulose adsorbing material.