Organisation Internationale pour le Bambou et le Rotin

Organisation Internationale pour le Bambou et le Rotin

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Modified titanium dioxide/bamboo charcoal composite material, preparation method thereof and method for preparing cigarette filter by the same

Brevets

Pays de publication:

CN

Inventeur:

GU Shuai; QI Shuhua

Année:

2012

Date de publication:

19/09/2012

Numéro de demande:

CN201210153073A

Année de demande:

2012

Date de demande:

17/05/2012

Numéro de priorité:

CN201210153073A

Pays de priorité:

CN

Date de priorité:

17/05/2012

CIB:

B01J23/745;A24D3/04;A24D3/16;A24D3/18

Membred de famille de brevets INPADOC:

CN102671663A

The invention relates to a modified titanium dioxide/bamboo charcoal composite material, preparation method thereof and method for preparing cigarette filter by the same, wherein the stable modified TiO2 (titanium dioxide) sol is prepared by a Sol-gel method, then the sol is processed by ultrasonic wave, as a result the titanium dioxide particles are able to enter the pores in bamboo charcoal, the nanoscale titanium dioxide with optical catalytic activity loaded on bamboo charcoal is prepared after roasting. The prepared composite material is fixed on the surface of a substrate by double faced adhesive tape, the waste gas of the cigarette after 10-second burning is tested by a gas chromatograph, the content of waste gas can be reduced 50% to 90% by controlling the amount of catalyst, thereby reaching the purpose of reducing harm of cigarette according to actual requirement and keeping the taste of the cigarette.