CN101844072B - Adsorption decomposition agent and preparation method thereof - Google Patents

Adsorption decomposition agent and preparation method thereof Download PDF

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Publication number
CN101844072B
CN101844072B CN2010101904113A CN201010190411A CN101844072B CN 101844072 B CN101844072 B CN 101844072B CN 2010101904113 A CN2010101904113 A CN 2010101904113A CN 201010190411 A CN201010190411 A CN 201010190411A CN 101844072 B CN101844072 B CN 101844072B
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decomposition agent
adsorption decomposition
particle
base
bamboo charcoal
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CN2010101904113A
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Chinese (zh)
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CN101844072A (en
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涂志龙
郭兴忠
李文彦
杨辉
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浙江碧岩环保材料有限公司
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Abstract

The invention discloses an adsorption decomposition agent. 90 to 95 mass percent of bamboo charcoal grains and 5 to 10 mass percent of tourmaline grains form a base material; and titanium dioxide sol serving as photo-catalyst, which accounts for 10 to 20 percent of the total weight of the base material, is added into the base material and is used as an additive. The invention also discloses a preparation method for the adsorption decomposition agent, which comprises the following steps of: 1) performing ball-milling and mixing on the base material to obtain a dry powdery material; 2) adding the titanium dioxide sol serving as the photo-catalyst into the dry powdery material for ball milling and mixing to obtain a mixture; and 3) drying, sieving and thermally processing the mixture to obtain the adsorption decomposition agent. The adsorption decomposition agent has the characteristics of high adsorption, catalytic decomposition in the presence of light and antibacterium.

Description

A kind of adsorption decomposition agent and preparation method thereof
Technical field
The present invention relates to a kind of adsorption decomposition agent and preparation method thereof, specifically, is a kind of material and production method thereof of decomposing VOCs that be used to adsorb.
Background technology
VOC (VOCs) is a major pollution thing in city and the industrial area atmosphere with NOx, SOx and particle.Their discharging is contaminated environment not only, destroys atmosphere, the physical and mental health that is more threatening the public.At present in handling the VOCs technical method, adsorption technology is the most commonly used, also comparatively simple control technology, but easy the to be saturated absorption of adsorbent at present, can't eradicate the development that problems such as nuisance, life-span be short have had a strong impact on adsorption and purification technology.
Bamboo charcoal has characteristics such as high-specific surface area, radiation far infrared, negative ion effect and is widely used in the adsorption technology because of it; Tourmaline is widely used in health care, the antimicrobial technology because of having stronger negative ion effect, radiation far infrared; The dioxide photocatalyst titanium can produce strong catalytic degradation function under the effect of light, the airborne VOCs that can degrade effectively kills various bacteria, and can the toxin that bacterium discharges be decomposed, and also possesses functions such as deodorizing, anti-soil simultaneously.So; Problem to present adsorbent existence; Numerous researchs begin around bamboo charcoal, tourmaline and these three kinds of materials of dioxide photocatalyst titanium with the whole bag of tricks, various prepared new adsorbent; Obtained that some are progressive, but also had various deficiencies, as: be aspect the feedstock production adsorbent with bamboo charcoal and dioxide photocatalyst titanium: publication number is that CN 1690130A, CN1689408A, CN 101632920A have made to possess and adsorb and the product of antibacterial functions; But it does not have the visible light catalytic effect, so decomposition efficiency is lower; At publication number is among the CN 1846846A; Invented a kind of nanometer modified photocatalytic bamboo charcoal; It has strong absorption, antibiotic effect, but its need through earlier with the nanometer anatase titania high pressure painting in mao bamboon, again through 100-800 ℃ of airtight heating of high temperature in 20-25 days; Its preparation technology is too complicated, and the cycle is oversize; At publication number is among the CN101402792A, uses bamboo charcoal powder and nano titanium oxide as part material, and its anion burst size of prepared material reaches 1000/cm 3, Escherichia coli antibacterium rate is greater than 90%, and greater than 0.8, but it does not have suction-operated to far infrared than radiation.
Aspect compound with bamboo charcoal and tourmaline: publication number is the material that CN 101486561A, CN 101580375A, CN101333100A have obtained only having the radiation far-infrared effect; And be among the CN 1413921A at publication number, with bamboo charcoal 10%~20%, tourmaline 10%~30%; And other mineral, made and can be used for purify and the ceramic material that can produce anion of water, but its shortcoming is; Material is used more rare mineral tourmaline, and goods do not have decomposition.
Tourmaline and photocatalyst compound aspect: at publication number is among the CN 1664020A; Mix with tourmaline surface adsorption silver nitrate, with titanium dioxide granule; Be coated with silicon oxide again or alumina layer; Obtain having the antimicrobial nano support materials of the release anion of porous character, but this material do not have suction-operated; At publication number is among the CN 1478755A, has reported that with tourmaline 40%-90% be primary raw material, adds multiple functional materials such as nano titanium oxide, and the multifunctinoal health environment-friendly materials of processing have very high anion, antibacterial bacteriostatic effect.But its material does not have visible light catalytic and a large amount of function of use mineral, is unfavorable for Sustainable utilization of resources.
Aspect bamboo charcoal, tourmaline, photocatalyst three compound: among the publication number CN 101249272A; With tourmaline and bamboo charcoal is host (2%~5%); Nano titanium oxide, nano medical stone, nanometer sepiolite, nano zeolite etc. are auxiliary agent (1%~3%); And stable dispersant makes a kind of nano composite negative ion material, because of the restriction of production technology, so host that it utilized and auxiliary agent content are less; So it has limited negative ion effect, and do not have visible light and urge and decomposing and antibacterial action.Among the publication number CN 101195537A, utilizing tourmaline powder (25%~40%), bamboo charcoal (5%), titanium dioxide (5%~8%), kaolin, potassium albite in powder is primary raw material, makes potsherd; This material has anion; Far infrared, antibacterial effect, 830~960/cm of its anion number 3, far infrared transmissivity is 0.87, greater than 99%, but it does not have visible light equally and urges and decomposing and antibacterial action to the antibiotic rate of Escherichia coli, staphylococcus aureus.
Summary of the invention
The technical problem that the present invention will solve provides a kind of adsorption decomposition agent and preparation method thereof, and this adsorption decomposition agent has that strong absorption, visible light catalytic are decomposed, antibiotic characteristic.
In order to solve the problems of the technologies described above; The present invention provides a kind of adsorption decomposition agent; Be 90%~95% bamboo charcoal particle and be that 5%~10% tourmaline particle is formed base-material by weight percentage by weight percentage, in base-material, add account for base-material gross weight 10%~20% dioxide photocatalyst titanium colloidal sol as additive.
Improvement as adsorption decomposition agent of the present invention: the particle diameter of bamboo charcoal particle≤1 millimeter, the particle diameter of tourmaline particle≤100 micron.
The present invention also provides the preparation method of above-mentioned adsorption decomposition agent simultaneously, in turn includes the following steps:
1), base-material that bamboo charcoal particle and tourmaline particle are formed carries out ball mill mixing (do and mix), obtains dry mash; Bamboo charcoal particle and the tourmaline particle weight percentage in base-material is respectively 90%~95% and 5%~10%;
2), adding dioxide photocatalyst titanium colloidal sol carries out ball mill mixing (wet mixing) in dry mash, gets mixture; The weight ratio of dioxide photocatalyst titanium colloidal sol and dry mash is 10%~20%;
3), with mixture after under the room temperature dry 24~48 hours, sieve, then in 400~500 ℃ of heat treatments 2~4 hours, adsorption decomposition agent.
Improvement as the preparation method of adsorption decomposition agent of the present invention: in the step 1), ball mill mixing was crossed 100 mesh sieves after 1~2 hour, dry mash; Step 2) time of ball mill mixing is 2~3 hours in; Cross 50 mesh sieves in the step 3).
The used dioxide photocatalyst titanium colloidal sol of the present invention is codoping titanium dioxide nano sol, has the visible light catalytic effect; Its preparation method can be 200710068437.9 patent of invention " codoping titanium dioxide nano sol and preparation method thereof " referring to the patent No..
The present invention be the inventor on the basis of the bamboo charcoal that studies for a long period of time, tourmaline, dioxide photocatalyst titanium, obtain through exploring technical process repeatedly.Its advantage is: given full play to the advantage of bamboo charcoal, tourmaline, dioxide photocatalyst titanium colloidal sol, in the material compound process, avoided the use of pressure forming, thereby kept the high-specific surface area of material, strong absorption property.Combination application through bamboo charcoal and photocatalysis technology; The adsorption capacity of bamboo charcoal makes the VOCs specific environment that concentrates; Thereby improved light-catalyzed reaction speed; And can adsorb intermediate by-products (intermediate product that produces in the substance reaction processes such as VOCs and water still has certain toxicity) and make it further by catalytic oxidation, reach fully and purify.And, make bamboo charcoal remove adsorbed contaminants through photochemical catalytic oxidation and be able to regeneration, thereby prolong life cycle because the pollutant that is adsorbed can be participated in oxidation reaction under the effect of visible light catalytic.In addition, function mineral tourmaline that is added and bamboo charcoal compound further improved the far infrared and the negative ion antibiotic cooperative effect of goods.
The adsorption decomposition agent of gained of the present invention detects in a conventional manner, and its specific area reaches 800~900m 2/ g discharges 5000~6000/cm of negative ion concentration 3, fluorescent lamp irradiation back visible light catalytic efficient reached 30%~40% in 4 hours, Chinese People's Anti-Japanese Military and Political College's enterobacteria experiment sterilization rate 91%~96%, and the far infrared radiation rate reaches 0.9~0.94; This adsorption decomposition agent integrates functions such as strong absorption, visible light catalytic, high antibiotic, farsighted infrared emittance and intense radiation anion.The adsorption decomposition agent performance that the present invention produced is superior to that its material composition is slightly similar, publication number is that disclosed its performance of CN 01195537A is for discharging 830~960/cm of negative ion concentration 3, far infrared transmissivity is 0.87 product.
The present invention is long-lasting for the absorption that significantly improves pollution and decomposition efficiency and adsorbent; Be the basis with the renewable resource bamboo charcoal; Through having visible light-responded dioxide photocatalyst titanium colloidal sol, the complex technique of functional tourmaline mineral; The compound adsorption decomposition agent of preparation bamboo charcoal base; Make full use of the high-specific surface area bamboo charcoal efficient absorption, optical catalyst sol photocatalysis Decomposition and do not have that light source is antibiotic, cooperative effects such as the far infrared of tourmaline and bamboo charcoal and negative ion antibiotic, realize that efficient absorption and the decomposition of indoor pollutant removes, make the decomposition removal efficient of adsorption decomposition agent and greatly improve service life; Be widely used in the removal of indoor VOCs, bacterium, virus, improve air quality.
The adsorption decomposition agent that the present invention produced, overcome the saturated adsoptivity of existing adsorbent low, can't eradicate problems such as nuisance, life-span be short.This adsorption decomposition agent can be applicable to the efficient adsorbent equipment of the collection of every profession and trade VOCs waste gas, antibiotic, purifier and low concentration pollutant; Also can be used for the capture and the control of organic exhaust gas such as stench; The control of sources of odor such as communal facility such as lavatory, food and drink, sewage pumping station, refuse depot, the ventilation of crossroad, parking lot, large-scale assembly hall, family, office space and freeway tunnel; Also be applicable to the technology that purifies or filter the blocking-up multiple harmful substances.
The specific embodiment
The preparation method of embodiment 1, a kind of adsorption decomposition agent, carry out following steps successively:
1), will by the base-material that the tourmaline of bamboo charcoal particle of 90 weight portions (particle diameter≤1 millimeter) and 10 weight portions (particle diameter≤100 micron) are formed put into the ball mill mixing machine do mix 2 hours after, cross 100 mesh sieves, obtain dry mash;
2), put into ball mill mixing machine wet mixing 2 hours after in dry mash, adding dioxide photocatalyst titanium colloidal sol, mixture; Dioxide photocatalyst titanium colloidal sol accounts for 10% of dry mash gross weight;
3), mixture down after dry 24 hours, 50 mesh sieves in room temperature (10~30 ℃) excessively,, obtain adsorption decomposition agent then in 500 ℃ of heat treatments 2 hours.
The specific area of this adsorption decomposition agent reaches 800~850m 2/ g discharges 5000~5500/cm of negative ion concentration 3, fluorescent lamp irradiation back visible light catalytic reached 30%~35% in 4 hours, Chinese People's Anti-Japanese Military and Political College's enterobacteria experiment sterilization rate 91%~92%, and the far infrared radiation rate reaches 0.9~0.91.
The preparation method of embodiment 2, a kind of adsorption decomposition agent, carry out following steps successively:
1), will by the base-material that the tourmaline particle of the bamboo charcoal particle of 93 weight portions and 7 weight portions is formed put into the ball mill mixing machine do mix 1 hour after, cross 100 mesh sieves, obtain dry mash;
2), put into ball mill mixing machine wet mixing 3 hours after in dry mash, adding dioxide photocatalyst titanium colloidal sol, mixture; Dioxide photocatalyst titanium colloidal sol accounts for 15% of dry mash gross weight;
3), mixture down after dry 36 hours, 50 mesh sieves in room temperature (10~30 ℃) excessively,, obtain adsorption decomposition agent then in 450 ℃ of heat treatments 3 hours.
The specific area of this adsorption decomposition agent reaches 800~900m 2/ g discharges 5000~6000/cm of negative ion concentration 3, fluorescent lamp irradiation back visible light catalytic reached about 35% in 4 hours, Chinese People's Anti-Japanese Military and Political College's enterobacteria experiment sterilization rate 91%~93%, and the far infrared radiation rate reaches 0.9~0.94.
The preparation method of embodiment 3, a kind of adsorption decomposition agent, carry out following steps successively:
1), will by the base-material that the tourmaline particle of the bamboo charcoal particle of 94 weight portions and 6 weight portions is formed put into the ball mill mixing machine do mix 2 hours after, cross 100 mesh sieves, obtain dry mash;
2), put into ball mill mixing machine wet mixing 3 hours after in dry mash, adding dioxide photocatalyst titanium colloidal sol, mixture; Dioxide photocatalyst titanium colloidal sol accounts for 15% of dry mash gross weight;
3), mixture down after dry 36 hours, 50 mesh sieves in room temperature (10~30 ℃) excessively,, obtain adsorption decomposition agent then in 400 ℃ of heat treatments 4 hours.
The specific area of this adsorption decomposition agent reaches 800~850m 2/ g discharges 5500~6000/cm of negative ion concentration 3, fluorescent lamp irradiation back visible light catalytic reached about 35% in 4 hours, Chinese People's Anti-Japanese Military and Political College's enterobacteria experiment sterilization rate 92%~94%, and the far infrared radiation rate reaches 0.91~0.92.
The preparation method of embodiment 4, a kind of adsorption decomposition agent, carry out following steps successively:
1), will by the base-material that the tourmaline particle of the bamboo charcoal particle of 95 weight portions and 5 weight portions is formed put into the ball mill mixing machine do mix 2 hours after, cross 100 mesh sieves, obtain dry mash;
2), put into ball mill mixing machine wet mixing 2 hours after in dry mash, adding dioxide photocatalyst titanium colloidal sol, mixture; Dioxide photocatalyst titanium colloidal sol accounts for 20% of dry mash gross weight;
3), mixture down after dry 48 hours, 50 mesh sieves in room temperature (10~30 ℃) excessively,, obtain adsorption decomposition agent then in 470 ℃ of heat treatments 2 hours.
The specific area of this adsorption decomposition agent reaches 850~900m 2/ g discharges 5500~6000/cm of negative ion concentration 3, fluorescent lamp irradiation back visible light catalytic reached 35%~40% in 4 hours, Chinese People's Anti-Japanese Military and Political College's enterobacteria experiment sterilization rate 93%~96%, and the far infrared radiation rate reaches 0.92~0.94.
At last, it is also to be noted that what more than enumerate only is several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.

Claims (4)

1. adsorption decomposition agent; It is characterized in that: be 90%~95% bamboo charcoal particle and be that 5%~10% tourmaline particle is formed base-material by weight percentage by weight percentage, in base-material, add account for base-material gross weight 10%~20% dioxide photocatalyst titanium colloidal sol as additive; The particle diameter of bamboo charcoal particle≤1 millimeter, the particle diameter of tourmaline particle≤100 micron;
The preparation method of this adsorption decomposition agent in turn includes the following steps:
1), base-material that bamboo charcoal particle and tourmaline particle are formed carries out ball mill mixing, obtains dry mash; Bamboo charcoal particle and the tourmaline particle weight percentage in base-material is respectively 90%~95% and 5%~10%;
2), adding dioxide photocatalyst titanium colloidal sol carries out ball mill mixing in dry mash, gets mixture; The weight ratio of dioxide photocatalyst titanium colloidal sol and dry mash is 10%~20%;
3), with mixture after under the room temperature dry 24~48 hours, sieve, then in 400~500 ℃ of heat treatments 2~4 hours, adsorption decomposition agent.
2. adsorption decomposition agent according to claim 1 is characterized in that in the said step 1): ball mill mixing was crossed 100 mesh sieves after 1~2 hour, got dry mash.
3. adsorption decomposition agent according to claim 2 is characterized in that: step 2) in time of ball mill mixing be 2~3 hours.
4. adsorption decomposition agent according to claim 3 is characterized in that: cross 50 mesh sieves in the said step 3).
CN2010101904113A 2010-06-03 2010-06-03 Adsorption decomposition agent and preparation method thereof CN101844072B (en)

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CN102002287A (en) * 2010-11-09 2011-04-06 浙江大学 Bamboo charcoal-containing architectural coating and preparation method thereof
CN102430369B (en) * 2011-09-16 2013-08-14 浙江大学 Bamboo charcoal/carbon aerogel composite material and preparation method thereof
CN102389780B (en) * 2011-09-23 2013-04-10 重庆文理学院 Water treatment agent and preparation method
CN103127916B (en) * 2011-09-23 2014-09-10 重庆文理学院 Preparation method of tourmaline/magnetic chitosan microsphere treatment agent
CN103127918B (en) * 2011-09-23 2014-09-10 重庆文理学院 Preparation method of drinking water treatment agent
CN103127914B (en) * 2011-09-23 2014-09-10 重庆文理学院 Magnetic chitosan microsphere treatment agent and preparation method thereof
CN103127917B (en) * 2011-09-23 2014-09-10 重庆文理学院 Preparation method of drinking water treatment agent
CN105386343A (en) * 2015-12-18 2016-03-09 常熟市通顺印染有限公司 Environmentally friendly adjuvant used for fabric dyeing

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CN101249272A (en) * 2008-03-14 2008-08-27 南京师范大学 Nano composite negative ion material
CN101380566A (en) * 2008-09-01 2009-03-11 林德方 Antibiotic health-care bamboo charcoal and preparation method and use thereof
CN101596449A (en) * 2009-06-17 2009-12-09 中国海洋大学 A kind of preparation method of amidoxime group uranium extraction sorbent

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CN101380566A (en) * 2008-09-01 2009-03-11 林德方 Antibiotic health-care bamboo charcoal and preparation method and use thereof
CN101596449A (en) * 2009-06-17 2009-12-09 中国海洋大学 A kind of preparation method of amidoxime group uranium extraction sorbent

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