Preparing method and application of chitosan grafted mesoporous silica nanofiber membrane

The invention discloses a preparing method and application of a chitosan grafted mesoporous silica nanofiber membrane. The nanofiber membrane is used for adsorbing heavy metal materials in water. A nanofiber membrane is obtained by conducting electrostatic spinning with polyvinyl alcohol and tetraet...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	NIE JUN, ZHANG LU, PENG CHAOYUN, MA GUIPING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BRAIDING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR KNITTING LACE-MAKING LAUNDERING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-WOVEN FABRICS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SPINNING TEXTILES THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS TRIMMINGS WADDING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention discloses a preparing method and application of a chitosan grafted mesoporous silica nanofiber membrane. The nanofiber membrane is used for adsorbing heavy metal materials in water. A nanofiber membrane is obtained by conducting electrostatic spinning with polyvinyl alcohol and tetraethoxysilane (TEOS) hydrolysate as the spinning solution and put into a muffle furnace to be calcinated, and the silica nanofiber membrane without polyvinyl alcohol is obtained. The nanofiber membrane is soaked in chitosan acetone dispersion liquid for 10 hours after the surface of the nanofiber membrane is coated with a silicane epoxide coupling agent KH-560 to obtain the chitosan surface-grafted silica nanofiber membrane. The method is simple in process and easy to operate, and the obtained nanofiber membrane is high in specific surface area, can be recycled, has the mesoporous silica and chitosan duplex adsorption function, can effectively adsorb heavy metal ions in water and has broad prospects on the aspect of w