CN1846846A - Nanometer modified photocatalytic bamboo charcoal - Google Patents
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- CN1846846A CN1846846A CN 200510025023 CN200510025023A CN1846846A CN 1846846 A CN1846846 A CN 1846846A CN 200510025023 CN200510025023 CN 200510025023 CN 200510025023 A CN200510025023 A CN 200510025023A CN 1846846 A CN1846846 A CN 1846846A
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Abstract
The present invention is nanometer modified photocatalytic bamboo charcoal and its preparation process. The preparation process includes the steps of: high pressure spraying nanometer hybridized and red shifted anatase type titania in fineness of 4-7 nm and in the mass fraction of 1-5 to 500 to the surface of bamboo, high temperature sealed heating at 100-800 deg.c for 20-25 days to carbonize, and crushing. It has bamboo charcoal grain size of 3-10 mm, fixed carbon content of 78-85 wt% and titania content of 0.2-1 wt%. Compared with common bamboo charcoal purificant, the present invention has powerful adsorption on vapor, harmful matter, impurity, etc, capacity of irreversibly decomposing adsorbed harmful matter and antibiotic effect. It has also longer photocatalytic response wavelength and higher air purifying effect.
Description
Technical field
The present invention relates to a kind of nanometer modified photocatalytic bamboo charcoal and manufacture method thereof, more particularly, the present invention relates to a kind of be mainly used in nanometer modified photocatalytic bamboo charcoal and manufacture method thereof indoor and that air in a car compartment purifies.
Background technology
In recent years, because the high development of industrialization society, problem of environmental pollution is serious day by day.To this, various sterilizations, sterilization, the material that improves air quality and method obtain exploitation.Wherein, because tiny, the high adsorption capacity of carbon granule of bamboo charcoal, and be widely used in the water that contained poisonous, harmful components, impurity in the water and in the air etc. adsorb is purified or the sorbing material or the filtering material of air cleaning etc.
For example; number of patent application is that " 01130459.6 ", denomination of invention disclose a kind of bamboo carbon washing article for the Chinese patent application of " bamboo carbon washing article "; this is mixed in the bamboo charcoal powder in the articles for washing with strain, to reach absorption, sterilization, antibacterial, and functions such as dehumidifying, deodorizing.
Again, number of patent application is that " 03126840.4 ", denomination of invention disclose a kind of photocatalyst new composite charcoal sorbing material and manufacture method thereof for the Chinese patent application of " photocatalyst new composite charcoal sorbing material and manufacture method thereof ", and described photocatalyst new composite charcoal sorbing material is formed through the high-temperature calcination charing of 600-1000 degree by a certain percentage by the composition of carbo lignius, clay, pottery grain and photocatalyst agent.Be used for absorbing and deodorizing poisonous, pernicious gas, or be used as the filtering material of the absorption of the residual chlorine ion removed in the water, ammonia etc.
To be " 01128537.0 ", denomination of invention disclose a kind of high temperature bamboo charcoal and refining bamboo vinegar for the Chinese patent application of " a kind of manufacture method of obtaining high temperature bamboo charcoal and refining bamboo vinegar from bamboo wood " to number of patent application and manufacture method, and water purifies or the sorbing material or the filtering material of air cleaning etc.
The bamboo carbon that high-temperature calcination forms is because of thereby himself natural quality characteristic little, that specific area is big has functions such as powerful air adsorption capacity and self-control be warm and humid, is widely used in addition product fields such as indoor environment field of purification and textile industry and is subjected to user's favorable comment deeply.But this crude also has the defective of self, i.e. physical absorption saturation problem, and adsorption capacity descends by ratio and can't thoroughly eliminate harmful organic substances under nonexpondable condition.
How to make product itself absorption and decomposition dual-use function be arranged, reduce bamboo carbon saturation factor for harmful organic substances in the air, improve service efficiency, have antibacterial functions concurrently, having to cause for the development of bamboo carbon and correlated product industry thereof and close important meaning, also is a key subject.
Nano modified bamboo charcoal is to have the nano material TiO of photocatalysis performance
2(titanium dioxide) process special process appendix is to the bamboo charcoal micro-pore wall, make bamboo charcoal not only keep original strong absorption property, and under the effect of light, airborne hydrogen-oxygen molecule is changed into hydroxyl ion and hydroxyl free radical, the cell membrane of the airborne organic harmful substance of the continual decomposition of energy, destruction bacterium and virus.Utilize nano-photocatalyst material TiO
2Killing bacteria, virus and poisonous, harmful substance (as: formaldehyde, benzene, toluene, ammonia etc.) be decomposed into carbon dioxide and water under the effect of light.Known, nano modified bamboo charcoal can be killed bacteriums such as Escherichia coli, staphylococcus aureus, tinea alba bacterium, bacillus pyogenes, Pseudomonas aeruginosa effectively, suppresses the propagation of germ and virus.Thereby reach the effect that purifies air.
Number of patent application is that " 200310112754.8 ", denomination of invention disclose a kind of nanomodifying carbon photocatalysis absorption, sterilization material for the Chinese patent application of " nanomodifying carbon photocatalysis absorption, sterilization material ", this material is a raw material with bamboo wood, timber or shell, make 80-200 purpose powdery carbon with conventional pyrolytic process, again with the nano-TiO of 0.5-4%
2Nano-TiO with 0.5-3%
2Antiseptic stirs into mixed emulsion, and this emulsion is added in pyrocarbon-water slurry, fully stirs, and is making after routine evaporation, drying.This product has formaldehyde, benzene, toluene, ammonia etc. that will absorption be decomposed into carbon dioxide and water, also the Escherichia coli of absorption, staphylococcus aureus, tinea alba bacterium etc. can be carried out antibacterial, bactericidal action.
But, to introduce as the document, this nanomodifying carbon photocatalysis absorption, sterilization material need use the nano-TiO of 0.5-4%
2Nano-TiO with 0.5-3%
2Antiseptic stirs into mixed emulsion, and (1-7%) is bigger for the use amount of its titanium dioxide.Simultaneously, the manufacture method of this nanomodifying carbon photocatalysis absorption, sterilization material has adopted elder generation that material is carried out charing, and then applies the method with the titanium dioxide mixed emulsion, its complex procedures, and cost is higher.
In addition, introduce as the document, this nanomodifying carbon photocatalysis absorption, sterilization material mainly are used in absorption, sterilization material in chemical industry and the medical hygiene industry etc., for example, and mouth mask, protective clothes and sanitary napkin etc.
Have, this nanomodifying carbon photocatalysis absorption, sterilization material are handled without hydridization, red shift again, and therefore, but this material catalysis response wave length relative narrower can only be carried out catalytic response to ultraviolet light.And in actual use, ultraviolet light only accounts for takes in 0.8% of light, and light utilization efficiency is low, and the decomposition of the absorption under half-light condition effect is relatively poor.
For overcoming above-mentioned deficiency, the objective of the invention is to: a kind of nanometer modified photocatalytic bamboo charcoal is provided, a kind of nanometer modified photocatalytic bamboo charcoal that is mainly used in indoor air purification particularly is provided, the nanometer anatase titania of described nanometer modified photocatalytic bamboo charcoal is through hydridization, red shift technical finesse, make nanometer anatase titania possess longer response optical wavelength (nearly 800 nanometers), possess the half-light catalytic effect simultaneously.Be one efficiently adsorb, decomposition, degerming, purification, recyclable regenerative photo-catalysis function enhancement mode bamboo charcoal material, this nano modified bamboo charcoal is made easy, cost is lower.
The present invention also aims to: the manufacture method that a kind of nanometer modified photocatalytic bamboo charcoal is provided, specifically, the invention provides a kind of manufacture method that is mainly used in the nanometer modified photocatalytic bamboo charcoal of indoor air purification, described manufacture method adopts hydridization, red shift technical finesse, make nanometer anatase titania pass through the catalysis material process for modifying surface, the wave-length coverage that the catalysis light wave can respond can be expanded near 800 nanometers, possess the half-light catalytic action simultaneously; Its catalytic activity improves; In addition, described manufacture method has adopted the above high mountain mao bamboon of life in 5 years, first high pressure painting titanic oxide material, and the method for charing in addition again, its operation is simple, and cost is lower.
Summary of the invention
Nanometer modified photocatalytic bamboo charcoal of the present invention, it is the nanometer anatase titania that will impose after hydridization, the red shift technology, press 1-5: 500 the even high pressure painting of mass percent proportioning is in the mao bamboon wall, the nanometer modified photocatalytic bamboo charcoal that forms through 100-800 ℃ charing in 20-25 days, above-mentioned nanometer modified photocatalytic bamboo charcoal particle diameter after crushed is the 3-10 millimeter, wherein, the fixed carbon composition is 78～85 quality %, titanium dioxide is 0.2～1 quality %, and all the other are moisture, volatile matter, ash content and carbide etc. not.
Wherein, moisture, volatile matter can be in the scopes of 12～18 quality %, and ash content can be in the scope of 1～3 quality %, and carbide can be in the scope of 1～3 quality %.
Be preferably, according to the present invention, imposing the fineness of implementing the nanometer anatase titania after red shift technology and the hydridization technology is 4-7nm.
Photocatalytic bamboo charcoal of the present invention can be made diameter after crushed to be the photocatalytic bamboo charcoal particle of 3-10 millimeter or to make different shape photocatalytic bamboo charcoal cake.
Being preferably, in nanometer modified photocatalytic bamboo charcoal of the present invention, is 1-3 through the nanometer anatase titania mass percent of hydridization, the modification of red shift technology: 500.So-called " nanometer anatase titania " refers to that promptly grain fineness is nano level, and crystalline form is 3.9g/cm
3, energy gap (energy jump) is the titanium dioxide of 3.2eV (electron-volt).Have surface area maximum, volume minimum, be difficult for the light dissolving, be difficult for chemical reaction taking place, having characteristics such as favorable durability, wear-resistant abrasiveness.This material can produce electronics and hole when being subjected to illumination that energy can be with greater than nanometer anatase titania and penetrating, they and water and oxygen react and can produce reactive hydrogen oxygen radical (OH) and peroxy isoreactivity oxygen (O
2) composition.These active oxygen compositions have very strong reactivity, reactive hydrogen oxygen radical particularly, it has the energy of 120kcal/mol,------hydrogen (C-H), oxygen--hydrogen (O-H), nitrogen--covalent bond of hydrogen (N-H) is in conjunction with about bond energy 100kcal/mol for nitrogen (C-N), carbon for carbon (C-C), carbon and constitute the carbon of organic compounds;------hydrogen, oxygen--hydrogen, nitrogen--are on the associative key of hydrogen, and these are destroyed easily in conjunction with meeting, and the organifying compound decomposes for nitrogen, carbon for carbon, carbon if reactive hydrogen oxygen radical and peroxy etc. act on carbon.So utilize photocatalyst almost can make all harmful organic compounds finally be decomposed into avirulence materials such as carbon dioxide and water.
Be preferably, nanometer modified photocatalytic bamboo charcoal particle diameter of the present invention is the 3-6 millimeter.
Be preferably, wherein, the fixed carbon composition is 80～85 quality % in the nanometer modified photocatalytic bamboo charcoal of the present invention, and titanium dioxide is 0.2～0.6 quality %, and all the other are moisture, volatile matter, ash content and carbide not.
In addition, in nanometer modified photocatalytic bamboo charcoal of the present invention,
PH value: 〉=7.5
Density: 1030Kg/m
3About
Calorific value: about 29745KJ/g.
According to the present invention, along with the raising of final carbonization temperature, the fixed carbon component content can improve, but the optimum range of final calcining is at 600-800 ℃.According to the present invention, gases such as moisture, the carbon dioxide that generates when volatile matter refers to calcine, carbon monoxide, methane, ash content mainly is meant trace elements such as phosphorus, potassium, silicon, calcium, magnesium, iron.
Manufacture method according to nanometer modified photocatalytic bamboo charcoal of the present invention, system will impose hydridization, fineness after the red shift technology is the nanometer anatase titania of 4-7nm, press 1-5: 500 the even high pressure painting of mass percent proportioning is in high mountain mao bamboon wall more than 5 years, again with this high mountain mao bamboon through 20-25 days 100-800 ℃, the final temperature 600-800 ℃ of airtight flames of anger of high temperature charing that progressively heats up, the photocatalytic bamboo charcoal of producing, through pulverizing, particle diameter is the 3-10 millimeter, or make spherical or different shape photocatalytic bamboo charcoal cake such as bulk, different shape photocatalytic bamboo charcoal cake such as described spherical or bulk is particularly useful for the air cleaning in the compartment.Wherein:
Fixed carbon composition: 78～85 quality %
Titanium dioxide: 0.2～1 quality %
All the other are moisture, volatile matter, carbide etc. not.
Hydridization, red shift technology
Titanium dioxide is the N-type semiconductor material, and stronger oxidisability and reproducibility are arranged.The energy gap of titanium dioxide is 3.2eV, when energy is penetrated TiO more than or equal to the illumination of energy gap
2The time, electronics on the valence band (e-) is excited, and crosses the forbidden band and enters conduction band, produces corresponding electronics on valence band, and-------hole (h+), electronics (e-) are separated under effect of electric field and are moved to particle surface.The hole gets the very capable of electronics, has very strong oxidisability, makes H
2The O oxidation.Electronics makes airborne O
2Reduction, the photocatalysis oxidation reaction in the aqueous solution, the electronics that loses at semiconductor surface mainly is a hydrone, hydrone is at the extremely strong hydroxyl radical free radical of a series of variations back generation oxidability, the various organic matters of oxidation, and to make it mineralising be H
2O and CO
2Thereby, decomposing organic matter, killing bacteria.
TiO
2Because of having determined material itself, its natural energy gap can only can produce above-mentioned series reaction with interior ultraviolet region at 320 nano wave lengths.Take in about 0.8% of light but practical application medium ultraviolet light only accounts for, light utilization efficiency is low, and light induced electron-hole is to compound easily.
According to the present invention, the nanometer anatase titania material is implemented hydridization, red shift technology.This be because, titanium dioxide is as the electron transit mediator of redox reaction, its band-gap energy is positioned at ultraviolet region, light utilization efficiency is low, is implemented on the bamboo charcoal product simply, its oxidative decomposition capacity is quite low.In the present invention, utilizing noble metal, transition metal to mix method can effectively address the above problem.Select the metal ion (less than 2.2eV) of narrower energy gap to be doped in TiO
2In, the energy level overlapping can take place in the two, forms composite semiconductor, and has increased TiO
2Boundary defect, make the ABSORPTION EDGE red shift.Optimum value of metal-doped existence.Along with the raising of metal-doped concentration, TiO
2Energy gap narrow down, space surface electric charge thickness reduces with the increase of element doping amount.And have only when space charge thickness is similar to incident light and enters the transmission depth of solid, light induced electron-hole could effectively be separated, and mixing, effect descends on the contrary when too much.
Arrive near 800 nanometers by the hydridization of titanium dioxide surface, the optical wavelength range expansion that the red shift modification technology can respond nanometer anatase titania catalysis, like this, titanium dioxide catalysis can respond light wave and expand as daylight source and ordinary lamps light source.
According to nanometer modified photocatalytic bamboo charcoal of the present invention,, thereby absorption, the decomposing efficiency of final products have been improved greatly even in the dark possess catalytic efficiency too.
The nanometer anatase titania material of implementing hydridization, red shift technique improvement is pressed the even high pressure painting of certain mass percent proportioning in the empty wall of high mountain mao bamboon, (its proportioning is 1-5: 500), the charing that progressively heats up through 20-25 days, the airtight flames of anger of 100-800 ℃ high temperature, can be prepared into have decomposition, degerming, purification, recyclable regenerative photo-catalysis function enhancement mode bamboo charcoal material.
The specific embodiment
Embodiment 1
1, nanometer anatase titania is implemented hydridization, red shift technology, promptly utilize the liquid phase gel method to prepare modification dichloride in anatase type TiO
2Material.
Earlier alkoxide is dissolved in and is mixed with TiO
2And (wherein, alkoxide, TiO in the organic solvent of metal ion (platinum, iron, nickel)
2And the quality proportioning of metal ion (platinum, iron, nickel) is 0.4-0.6: 1: 0.1-0.2: 0.3-0.4: 0.2-0.3).
Make hydrolysis of alkoxide form colloidal sol by adding distilled water, gelatine obtains gel after handling, and makes metal ion and TiO
2Particle surface is compound, forms composite semiconductor.
Drying and roasting through about 60 ℃-100 ℃ promptly obtains modification dichloride in anatase type TiO again
2Material (trade name " titanium good fortune ", Shanghai titanium good fortune nanosecond science and technology Co., Ltd).
This material possesses catalysis can respond optical wavelength near 800 nanometers, possesses higher photocatalytic activity, and possesses the half-light catalytic effect.
2, with modification dichloride in anatase type TiO
2Material dissolves is in distilled water, and obtaining concentration is the modification nanometer anatase titania aqueous solution of 5-8%.
3, with above-mentioned concentration be the modification nanometer anatase titania aqueous solution of 5-8% by quality proportioning 2-5: 500 evenly are implemented in high mountain mao bamboon surface and the hole wall and (use Britain to produce Wagerner5100 type high pressure mist-like spray gun).
4, the high mountain mao bamboon of the above-mentioned coating modification nanometer anatase titania aqueous solution is progressively heated up through 20-25 days, the airtight flames of anger of 100-800 ℃ high temperature charing, make have efficient absorption, decomposition, degerming, purification, recyclable regenerative photo-catalysis function enhancement mode bamboo charcoal material.
Charring process adopts earth kiln to fire method: promptly be to adopt directly mode of heating of fuel (timber), after the heat that to be kilneye produced by fuel combustion rises to the kiln top, in kiln, spread, wherein most of thermal current is flowing in the upper strata, the fraction heat is arranged to radiation all around, slowly drying also reaches pre-charing from top to bottom; Part bamboo wood in the burning kiln.Make kiln temperature continue to raise, remove volatile materials, the interior flue gas recirculation of kiln this moment is flowed, and each point heat and temperature are even substantially, finish charing and refining stage, obtain the bamboo charcoal of compact structure.
The concrete implementation step of charring process:
Water evaporates or drying stage
Heating-up temperature is between 100 ℃-150 ℃, and the speed that bamboo wood decomposes is slow, and adsorbed moisture is subjected to thermal evaporation dissipation in the bamboo wood tissue, but the chemical composition of bamboo wood does not have significant change.
The pre-charing stage
Heating-up temperature is 150 ℃-270 ℃, and the bamboo wood decomposes speeds up, and tangible decomposition reaction takes place chemical composition wherein, and more unsettled component such as hemicellulose decomposes generate CO
2, CO, H
2Material such as O and a spot of acetate.
The charing stage
Heating-up temperature is increased to 270 ℃-450 ℃, and the bamboo wood pyrolysis is violent, supervenes a large amount of thermal decomposition products, in the gas of generation, and CO
2Reduce gradually with the amount of CO, and hydrocarbon such as methane, ethene, olefines and in the hydroperoxyl radical and the hydroxyl of active high energy, then increase gradually; The liquid that generates mainly contains acetate, formic acid, acetone and bamboo tar.This stage is emitted a large amount of reaction heat, is called the exothermic reaction stage; And the exothermic reaction temperature is different with firing rate.
Calcination stage
Temperature continues to be elevated to more than 450 ℃ in the time of 600 ℃-800 ℃, the product liquid of generation seldom, this stage is by the heat of outside, removes the volatile substance that remains in the bamboo charcoal and the calcining of bamboo charcoal.
The photocatalytic bamboo charcoal of the manufacturing of giving birth to is through pulverizing, and particle diameter is the 3-5 millimeter, wherein:
Fixed carbon composition: 78～85 quality %
Titanium dioxide: 0.4～1 quality %
All the other are moisture, volatile matter, carbide etc. not.
Embodiment 2
The modification nanometer anatase titania aqueous solution (concentration is 6-7%) after implementing hydridization red shift technique improvement is by quality proportioning 1-3: 500 evenly be coated on high mountain mao bamboon surface and hole wall interior, other are as embodiment 1, prepared photocatalytic bamboo charcoal particle diameter is the 6-10 millimeter, and make the photocatalytic bamboo charcoal cake of various bulks such as spherical or bulk, wherein:
Fixed carbon composition: 80～85 quality %
Titanium dioxide: 0.2～0.6 quality %
All the other are moisture, volatile matter, carbide etc. not.
Embodiment 3
The modification nanometer anatase titania aqueous solution (concentration is 5-7%) after implementing hydridization red shift technique improvement is by quality proportioning 1-2.5: 500 evenly be coated on high mountain mao bamboon surface and hole wall interior, other are as embodiment 1, prepared photocatalytic bamboo charcoal is compressed to spherical or block different shape photocatalytic bamboo charcoal cake, wherein:
Fixed carbon composition: 80～85 quality %
Titanium dioxide: 0.2～0.5 quality %
All the other are moisture, volatile matter, ash content and carbide not.
Detect through Shanghai City environmental protection product quality supervision and test master station, the physical and chemical index of finished product absorption, decomposition, degerming, purification, recyclable regenerative photo-catalysis function enhancement mode bamboo charcoal material is as follows:
Outward appearance: black particle
This material is 20 ℃ of temperature, and humidity 40%RH can reach following air purification effect in 24 hours in the surface wind speed 0.3M/S, the environment of 36W fluorescent lamp:
After testing, this material has possessed the effect of efficient absorption, decomposition harmful organic substances under the irradiation of common fluorescent lamp; When adding ultraviolet light, the effect of its absorption, decomposition harmful organic substances significantly improves; When ambient light progressively weakens to the half-light state, its absorption, the effect of decomposing harmful organic substances exist but progressively weaken.
In sum, the present invention and common bamboo charcoal purification agent relatively can and make ambient oxygen and hydrone be excited on every side on the surface of bamboo charcoal and have active OH-and O
2-free ion base, except that to steam, harmful substance, impurity etc. except that having stronger adsorption capacity and faster the rate of adsorption, harmful organic substances and the part inorganic substances that are adsorbed onto in the material can be carried out irreversible thorough decomposition, decompose back formation and stablize harmless carbon dioxide and water, have antibiotic effect simultaneously.Because this material is implemented hydridization, red shift technology, therefore possess the longer response optical wavelength of catalysis, and under the half-light situation, this material also has good air cleaning effect, is particularly useful for the air cleaning in indoor and the compartment.Be compressed to spherical or block different shape photocatalytic bamboo charcoal cake and be particularly useful for air cleaning in the compartment.This material does not consume in mechanism, adsorbing under the saturated situation, behind ventilation or solar radiation, can recycle by functional regeneration.Raw material that this material adopts are all nontoxic, harmless, odorlessness, and in addition, nanometer modified photocatalytic bamboo charcoal of the present invention also can be used as the environmental protection water purification material.
Claims (10)
1. nanometer modified photocatalytic bamboo charcoal, tie up to the mao bamboon wall with 1-5: the even high pressure painting of 500 mass percent has the nanometer anatase titania that imposes after red shift technology and the hydridization technology, form through 100-800 ℃ of progressively intensification of the airtight flames of anger of high temperature, charing, pulverizing in 20-25 days, described photocatalytic bamboo charcoal particle diameter after crushed is the 3-10 millimeter, wherein, the fixed carbon composition is 78～85 quality %, titanium dioxide is 0.2～1.0 quality %, and all the other are moisture, volatile matter, ash content and carbide not.
2. nanometer modified photocatalytic bamboo charcoal as claimed in claim 1 is characterized in that, imposing the nanometer anatase titania fineness of implementing after hydridization, the red shift technology is 4-7nm.
3. nanometer modified photocatalytic bamboo charcoal as claimed in claim 1 is characterized in that, described particle diameter after crushed is the 3-10 millimeter.
4. nanometer modified photocatalytic bamboo charcoal as claimed in claim 1 is characterized in that, described particle diameter after crushed is the 3-6 millimeter.
5. nanometer modified photocatalytic bamboo charcoal as claimed in claim 1 is characterized in that, described nanometer modified photocatalytic bamboo charcoal is spherical or block photocatalytic bamboo charcoal cake.
6. nanometer modified photocatalytic bamboo charcoal as claimed in claim 1 is characterized in that, in the described nanometer modified photocatalytic bamboo charcoal, the fixed carbon composition is 80～85 quality %, and titanium dioxide is 0.2%～0.6 quality %.
7. the manufacture method of a nanometer modified photocatalytic bamboo charcoal, it is characterized in that, described method is to impose enforcement hydridization, fineness after the red shift technology is the nanometer anatase titania of 4-7nm, press 1-5: 500 the even high pressure painting of mass percent proportioning is in high mountain mao bamboon wall more than 5 years, through 100-800 ℃ of airtight flames of anger of high temperature in 20-25 days charing that progressively heats up, the photocatalytic bamboo charcoal of producing, through pulverizing, particle diameter is the 3-10 millimeter, wherein: the fixed carbon composition is 78%～85 quality %, titanium dioxide is 0.2%～1 quality %, and all the other are moisture, volatile matter, ash content reaches not carbide.
8. the manufacture method of nanometer modified photocatalytic bamboo charcoal as claimed in claim 7 is characterized in that, the particle diameter after the described pulverizing is the 3-10 millimeter.
9. the manufacture method of nanometer modified photocatalytic bamboo charcoal as claimed in claim 7 is characterized in that, the particle diameter after the described pulverizing is the 3-6 millimeter.
10. the manufacture method of nanometer modified photocatalytic bamboo charcoal as claimed in claim 7 is characterized in that, described nanometer modified photocatalytic bamboo charcoal is compressed to spherical or block photocatalytic bamboo charcoal cake.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101433862B (en) * | 2007-11-15 | 2010-11-24 | 中国石油化工股份有限公司 | Use of bamboo charcoal in catalyst carrier |
| CN102294226A (en) * | 2011-07-15 | 2011-12-28 | 哈尔滨工业大学 | Preparation method of bamboo charcoal loaded Au-TiO2 composite material and its application |
| CN102343262A (en) * | 2011-07-15 | 2012-02-08 | 哈尔滨工业大学 | Preparation method of Si-TiO2-loaded bamboo charcoal composite material and method for removing ammonia nitrogen in low temperature water using same |
| CN106581925A (en) * | 2016-11-29 | 2017-04-26 | 陈宜宽 | Preparation method and application method of bamboo vinegar decomposition liquid |
| CN107583619A (en) * | 2017-10-09 | 2018-01-16 | 盐城工学院 | Sorbing material for air pollution treatment and preparation method thereof |
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| CN110743525A (en) * | 2019-10-29 | 2020-02-04 | 广西五行材料科技有限公司 | Nano bamboo charcoal for treating air pollution through photocatalysis and high activity |
| CN110841596A (en) * | 2019-12-02 | 2020-02-28 | 万安县朝荣毛竹林场 | Preparation process of bamboo charcoal |
| CN111531673A (en) * | 2020-05-09 | 2020-08-14 | 浙江省林业科学研究院 | Preparation method of long-acting antibacterial bamboo outdoor wallboard |
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- 2005-04-11 CN CN 200510025023 patent/CN1846846A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101433862B (en) * | 2007-11-15 | 2010-11-24 | 中国石油化工股份有限公司 | Use of bamboo charcoal in catalyst carrier |
| CN102294226A (en) * | 2011-07-15 | 2011-12-28 | 哈尔滨工业大学 | Preparation method of bamboo charcoal loaded Au-TiO2 composite material and its application |
| CN102343262A (en) * | 2011-07-15 | 2012-02-08 | 哈尔滨工业大学 | Preparation method of Si-TiO2-loaded bamboo charcoal composite material and method for removing ammonia nitrogen in low temperature water using same |
| CN102343262B (en) * | 2011-07-15 | 2013-01-09 | 哈尔滨工业大学 | Preparation method of Si-TiO2-loaded bamboo charcoal composite material and method for removing ammonia nitrogen in low temperature water using same |
| CN106581925A (en) * | 2016-11-29 | 2017-04-26 | 陈宜宽 | Preparation method and application method of bamboo vinegar decomposition liquid |
| CN107583619A (en) * | 2017-10-09 | 2018-01-16 | 盐城工学院 | Sorbing material for air pollution treatment and preparation method thereof |
| CN107583619B (en) * | 2017-10-09 | 2020-06-16 | 盐城工学院 | Adsorption material for air pollution treatment and preparation method thereof |
| CN108777887A (en) * | 2018-06-27 | 2018-11-09 | 四川省安德盖姆石墨烯科技有限公司 | A kind of graphene heating film and preparation method thereof |
| CN110743525A (en) * | 2019-10-29 | 2020-02-04 | 广西五行材料科技有限公司 | Nano bamboo charcoal for treating air pollution through photocatalysis and high activity |
| CN110841596A (en) * | 2019-12-02 | 2020-02-28 | 万安县朝荣毛竹林场 | Preparation process of bamboo charcoal |
| CN111531673A (en) * | 2020-05-09 | 2020-08-14 | 浙江省林业科学研究院 | Preparation method of long-acting antibacterial bamboo outdoor wallboard |
| CN111531673B (en) * | 2020-05-09 | 2022-03-22 | 浙江省林业科学研究院 | Preparation method of long-acting antibacterial bamboo outdoor wallboard |
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