CN103447037A - Fe<3+>/TiO2/bamboo charcoal composite material and method for preparing cigarette filters by using same - Google Patents
Fe<3+>/TiO2/bamboo charcoal composite material and method for preparing cigarette filters by using same Download PDFInfo
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- CN103447037A CN103447037A CN2013103828616A CN201310382861A CN103447037A CN 103447037 A CN103447037 A CN 103447037A CN 2013103828616 A CN2013103828616 A CN 2013103828616A CN 201310382861 A CN201310382861 A CN 201310382861A CN 103447037 A CN103447037 A CN 103447037A
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- bamboo charcoal
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Abstract
The invention relates to a Fe<3+>/TiO2/bamboo charcoal composite material and a method for preparing cigarette filters by using the Fe<3+>/TiO2/bamboo charcoal composite material. The method is characterized in that a sol-gel method is used for preparing stable modified TiO2 sol, the stable modified TiO2 sol is subjected to ultrasonic wave treatment, so that titanium dioxide particles can enter holes inside bamboo charcoal, and nanoscale carbon dioxide with photocatalytic activity, which is loaded on bamboo charcoal, is prepared by baking. The Fe<3+>/TiO2/bamboo charcoal composite material prepared by the method has the capacity of degrading pollutants at high efficiency in the sun under the condition of adding very little hydrogen peroxide. Experiments prove that in liquid phase, industrial printing and dyeing wastewater is used as a target degradation product, the addition amount of the catalyst is 20g/l, after the industrial printing and dyeing wastewater is irradiated for 2 hours in the sun, through UV-2550 type ultraviolet and visible spectrophotometer determination, the degradation rate of the industrial printing and dyeing wastewater is close to 100%, and the appearance and the color of the degraded wastewater are little different from those of natural water.
Description
Technical field
The present invention relates to the cigarette filter catalyst, relate to a kind of Fe
3+/ TiO
2the preparation method of/bamboo charcoal composite material and adopt this material to prepare cigarette filter.Fe
3+/ TiO
2/ bamboo charcoal composite material adds the hydrogen peroxide of minute quantity to have the harmful substance that extraordinary photocatalytic activity adsorbs in filter tip with degraded under sunshine, makes that people's smoking is much cleaner, more environmental protection.
Background technology
Smoking is large bad habit that are detrimental to health, and smoking cessation is unlikely concerning most smokers, and cigarette industry keeps reforming for this reason, as the birth of cigarette with filter tip.Research shows, smoking not only endangers self healthy but also harm surrounding population health.Tar in flue gas, condensed-nuclei aromatics type organic etc. are quite large to harm, and the loss that whole world every year causes due to smoking is up to many trillion unit.
Chinese invention patent---application number is 201010602751.2 to relate to " a kind of preparation method of nanometer catalyst for filter tips of cigarettes ".This patent is mixed nano titanium oxide, iron with copper, cobalt or zinc, then mixture is added to the water and obtains mixture aqueous solution, add surfactant and polyacrylic binder again in mixture aqueous solution, stir and obtain the used for filter tip nanocatalyst under 90 ℃, then catalyst evenly is sprayed in filter-tip fiber, this kind of filter tip can effectively reduce the harm that cigarette is brought health.But there is following several problem in the catalyst made by the method: 1., nano titanium oxide and various material are added to the water, nano material is easily reunited in liquid phase, and the optically catalytic TiO 2 activity after reuniting reduces greatly; 2., not providing degraded, which kind of light source what select be, unadulterated titanium dioxide only can utilize ultraviolet light can't utilize Visible Light Induced Photocatalytic, conditional request is harsher; 3., do not point out the crystal formation of degraded with titanium dioxide.Optically catalytic TiO 2 degrading activity that it is generally acknowledged in the world different crystal forms is as follows: Detitanium-ore-type > rutile-type > brookite type.
Summary of the invention
The technical problem solved
For fear of the deficiencies in the prior art part, the present invention proposes a kind of low-cost Fe
3+/ TiO
2the preparation method of/bamboo charcoal composite material and adopt this material to prepare the method for cigarette filter, utilize composite photo-catalyst absorption and degradation of contaminant can reduce the impact of smoking on health of people, utilize the cigarette filter that the method makes to there is health, health, the advantages such as environmental protection.
Technical scheme
A kind of Fe
3+/ TiO
2/ bamboo charcoal composite material is characterized in that the raw material composition is: the iron nitrate solution that the butyl titanate of 1 part, 0.3～0.4 part of concentration are 0.21mol/L, 0.5 part of glacial acetic acid, 3～4 parts of absolute ethyl alcohols and bamboo charcoal, described umber is parts by volume.
A kind ofly prepare Fe claimed in claim 1
3+/ TiO
2the method of/bamboo charcoal composite material is characterized in that step is as follows:
Step 1: the parts by volume proportioning of the butyl titanate of 1 part, 3～4 parts of absolute ethyl alcohols is added in container and stirs, make A solution; The parts by volume proportioning of the iron nitrate solution that is 0.21mol/L by 0.3～0.4 part of concentration again, 1～2 part of absolute ethyl alcohol, 0.5 part of glacial acetic acid adds in container and stirs, and makes B solution;
Step 2: B solution is added in A solution, and the limit edged stirs, and is added dropwise to complete rear continuation and stirs to form colloidal sol, by colloidal sol ageing 5h left and right, obtains vitreosol;
Step 3: bamboo charcoal is put in the vitreosol that step 2 makes, and ultrasonic lower the processings 1h that is 45KHz at 32 ℃ of lower frequencies after stirring makes colloidal sol enter the bamboo charcoal internal void, takes out afterwards bamboo charcoal drying under 80 ℃; The addition of described bamboo charcoal is being as the criterion by the colloidal sol submergence;
Step 4: take out bamboo charcoal and obtain Fe at 550 ℃ of lower roasting 3h under nitrogen atmosphere from the drying box of step 3 in tube furnace
3+/ TiO
2/ bamboo charcoal composite material.
Rate of addition when in described step 2, B liquid adds A liquid is 1/s.
The described Fe of a kind of employing
3+/ TiO
2cigarette filter prepared by/bamboo charcoal composite material is characterized in that: two outer field acetate fiber intermediate courses of cigarette filter hierarchical structure are Fe
3+/ TiO
2/ bamboo charcoal composite material particle.
A kind of method for preparing described cigarette filter, is characterized in that: by Fe
3+/ TiO
2/ bamboo charcoal composite material is crushed into graininess, utilizes tobacco curing equipment to be rolled according to the structure of claim 4.
Beneficial effect
A kind of Fe that the present invention proposes
3+/ TiO
2the preparation method of/bamboo charcoal composite material and adopt this material to prepare the method for cigarette filter, adopt the standby stable modification TiO of Sol-gel legal system
2colloidal sol, process through ultrasonic wave, makes TiO 2 particles can enter the bamboo charcoal internal void, and after roasting, preparation has photocatalytic activity, loads on the Nano titanium dioxide on bamboo charcoal.
The Fe that patent of the present invention is prepared
3+/ TiO
2/ bamboo charcoal composite material adding in minute quantity hydrogen peroxide situation, has the ability of efficient degradation pollutant under sunshine.Experiment shows, in liquid phase, the target degradation product is selected dyeing wastewater, catalyst addition 20g/l, after utilizing solar light irradiation 2h, by UV-2550 type ultraviolet-uisible spectrophotometer, measure, the dyeing wastewater degradation rate approaches 100%, and waste water appearance color and Natural Water difference after degraded are little.
The accompanying drawing explanation
Fig. 1: the flow chart of the inventive method
Fig. 2: test selected sintering temperature gained TiO
2xRD figure, known TiO
2the powder crystal formation is that anatase and diffraction maximum are narrow, and intensity is high, shows the particle perfect crystalline.
Fig. 3: the cigarette with filter tip hierarchical structure sketch of inventing.
Fig. 4: design sketch in kind before and after degraded;
The specific embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
1., prepare the step of Activated Bamboo embodiment 1:: a certain amount of bamboo charcoal roasting 2h under 100～200 ℃ of oxygen-free environments is obtained to Activated Bamboo, and stand-by; 2., the parts by volume proportioning of the butyl titanate of 1 part, 3 parts of absolute ethyl alcohols is added in a dry clean container and stirs, make A solution, the parts by volume proportioning of the iron nitrate solution that is 0.21mol/L by 0.3 part of concentration again, 1 part of absolute ethyl alcohol, 0.5 part of glacial acetic acid adds in a dry clean container and stirs, and makes B solution; 3., B liquid is slowly added in A liquid, the limit edged stirs, and is added dropwise to complete rear continuation stir about 30min and forms stable colloidal sol, and the about 5h of colloidal sol ageing is stand-by; 4., after Activated Bamboo 1. prepared by step puts into the ageing colloidal sol that 3. step make, process 1h under the ultrasound condition that is 45KHz at 32 ℃ of lower frequencies and make colloidal sol enter the bamboo charcoal internal void, take out afterwards bamboo charcoal dry under 80 ℃; 5., take out bamboo charcoal drying box 4. from step in tube furnace under nitrogen atmosphere, at 550 ℃ of lower roasting 3h, obtain modification TiO
2/ bamboo charcoal catalyst; 6., 5. obtain composite from step it be crushed to appropriate particle size, utilize the tobacco curing equipment such as cigarette machine by the Fe of certain particle diameter
3+/ TiO
2/ bamboo charcoal composite material adds in cigarette holder, by controlling Fe
3+/ TiO
2the particle diameter of/bamboo charcoal composite material and addition are controlled resistance to suction and the elasticity of cigarette holder.
1., prepare the step of Activated Bamboo embodiment 2:: a certain amount of bamboo charcoal roasting 2h under 100～200 ℃ of oxygen-free environments is obtained to Activated Bamboo, and stand-by; 2., the parts by volume proportioning of the butyl titanate of 1 part, 4 parts of absolute ethyl alcohols is added in a dry clean container and stirs, make A solution, the parts by volume proportioning of the iron nitrate solution that is 0.21mol/L by 0.4 part of concentration again, 1 part of absolute ethyl alcohol, 0.5 part of glacial acetic acid adds in a dry clean container and stirs, and makes B solution; 3., B liquid is slowly added in A liquid, the limit edged stirs, and is added dropwise to complete rear continuation stir about 30min and forms stable colloidal sol, and the about 5h of colloidal sol ageing is stand-by; 4., after Activated Bamboo 1. prepared by step puts into the ageing colloidal sol that 3. step make, process 1h under the ultrasound condition that is 45KHz at 32 ℃ of lower frequencies and make colloidal sol enter the bamboo charcoal internal void, take out afterwards bamboo charcoal dry under 80 ℃; 5., take out bamboo charcoal drying box 4. from step in tube furnace under nitrogen atmosphere, at 550 ℃ of lower roasting 3h, obtain modification TiO
2/ bamboo charcoal catalyst; 6., 5. obtain composite from step it be crushed to appropriate particle size, utilize the tobacco curing equipment such as cigarette machine by the Fe of certain particle diameter
3+/ TiO
2/ bamboo charcoal composite material adds in cigarette holder, by controlling Fe
3+/ TiO
2the particle diameter of/bamboo charcoal composite material and addition are controlled resistance to suction and the elasticity of cigarette holder.
Claims (5)
1. a Fe
3+/ TiO
2/ bamboo charcoal composite material is characterized in that the raw material composition is: the iron nitrate solution that the butyl titanate of 1 part, 0.3～0.4 part of concentration are 0.21mol/L, 0.5 part of glacial acetic acid, 3～4 parts of absolute ethyl alcohols and bamboo charcoal, described umber is parts by volume.
2. one kind prepares Fe claimed in claim 1
3+/ TiO
2the method of/bamboo charcoal composite material is characterized in that step is as follows:
Step 1: the parts by volume proportioning of the butyl titanate of 1 part, 3～4 parts of absolute ethyl alcohols is added in container and stirs, make A solution; The parts by volume proportioning of the iron nitrate solution that is 0.21mol/L by 0.3～0.4 part of concentration again, 1～2 part of absolute ethyl alcohol, 0.5 part of glacial acetic acid adds in container and stirs, and makes B solution;
Step 2: B solution is added in A solution, and the limit edged stirs, and is added dropwise to complete rear continuation and stirs to form colloidal sol, by colloidal sol ageing 5h left and right, obtains vitreosol;
Step 3: bamboo charcoal is put in the vitreosol that step 2 makes, and ultrasonic lower the processings 1h that is 45KHz at 32 ℃ of lower frequencies after stirring makes colloidal sol enter the bamboo charcoal internal void, takes out afterwards bamboo charcoal drying under 80 ℃; The addition of described bamboo charcoal is being as the criterion by the colloidal sol submergence;
Step 4: take out bamboo charcoal and obtain Fe at 550 ℃ of lower roasting 3h under nitrogen atmosphere from the drying box of step 3 in tube furnace
3+/ TiO
2/ bamboo charcoal composite material.
3. method according to claim 2, it is characterized in that: rate of addition when in described step 2, B liquid adds A liquid is 1/s.
4. one kind adopts the described Fe of claim 1
3+/ TiO
2the cigarette filter that/bamboo charcoal composite material is prepared is characterized in that: two outer field acetate fiber intermediate courses of cigarette filter hierarchical structure are Fe
3+/ TiO
2/ bamboo charcoal composite material particle.
5. a method for preparing the described cigarette filter of claim 4, is characterized in that: by Fe
3+/ TiO
2/ bamboo charcoal composite material is crushed into graininess, utilizes tobacco curing equipment to be rolled according to the structure of claim 4.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141219A (en) * | 2014-06-10 | 2014-11-12 | 盐城市印染有限公司 | Preparation method and application of self-cleaning textile finishing liquid |
| CN108162109A (en) * | 2017-12-26 | 2018-06-15 | 中垣林业科技（定南）有限公司 | A kind of preparation method of willow plank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090239742A1 (en) * | 2006-06-01 | 2009-09-24 | Carrier Corporation | Long-lived high volumetric activity photocatalysts |
| RO122840B1 (en) * | 2004-05-06 | 2010-03-30 | Universitatea Babeş-Bolyai Cluj-Napoca | Process for photocatalysis mineralization of organic contaminants in waste water |
| CN102671663A (en) * | 2012-05-17 | 2012-09-19 | 西北工业大学 | Modified titanium dioxide/bamboo charcoal composite material, preparation method thereof and method for preparing cigarette filter by adopting material |
| CN102764650A (en) * | 2012-07-19 | 2012-11-07 | 西北工业大学 | Modified titanium dioxide/ bamboo charcoal composite material and preparation method thereof |
-
2013
- 2013-08-28 CN CN2013103828616A patent/CN103447037A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO122840B1 (en) * | 2004-05-06 | 2010-03-30 | Universitatea Babeş-Bolyai Cluj-Napoca | Process for photocatalysis mineralization of organic contaminants in waste water |
| US20090239742A1 (en) * | 2006-06-01 | 2009-09-24 | Carrier Corporation | Long-lived high volumetric activity photocatalysts |
| CN102671663A (en) * | 2012-05-17 | 2012-09-19 | 西北工业大学 | Modified titanium dioxide/bamboo charcoal composite material, preparation method thereof and method for preparing cigarette filter by adopting material |
| CN102764650A (en) * | 2012-07-19 | 2012-11-07 | 西北工业大学 | Modified titanium dioxide/ bamboo charcoal composite material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141219A (en) * | 2014-06-10 | 2014-11-12 | 盐城市印染有限公司 | Preparation method and application of self-cleaning textile finishing liquid |
| CN108162109A (en) * | 2017-12-26 | 2018-06-15 | 中垣林业科技（定南）有限公司 | A kind of preparation method of willow plank |
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Application publication date: 20131218 |