For processing fabric of dyeing waste water and preparation method thereof
Technical field
The present invention relates to function fabric ontology field, in particular to a kind of for processing knitting of dyeing waste water
Thing and preparation method thereof.
Background technology
China is world textile printing and dyeing industry first big country, and the development relationship of textile and dyeing industry, to national economy, is also
The pillar of China's foreign trade, but the wastewater flow rate of textile printing and dyeing enterprises discharge is big, complicated component, belongs to difficult to deal with
Industrial wastewater, the harm that environment is caused is extremely serious.Due to tio2Inexpensive, nontoxic, and body photocatalysis have speed soon, no
The advantages of selectivity, degraded are complete, can be had broad application prospects in terms of environmental pollution improvement with life-time service.
But traditional tio2There is many defects in actual applications, in practical application tio2Quantum efficiency be less than 10%, very
The high industrial wastewater of difficult concentration;tio2Bandwidth larger (3.2ev) it is impossible to visible ray in effectively utilizes sunlight
Part;Traditional tio2Powder body material is easily reunited, and leads to photocatalytic activity to reduce, and reclaims difficulty.
Content of the invention
It is an object of the invention to provide a kind of fabric for processing dyeing waste water, there is visible light catalysis activity, carry
The high efficiency for the treatment of of dyeing wastewater, is easy to the recycling of fabric body, raw material is cheap, and pollution-free, preparation cost is low, can
Effective process dyeing waste water, simple to operate, economical and efficient.
Another object of the present invention is to providing a kind of preparation method of the fabric for processing dyeing waste water, its preparation side
Method is simple, have visible light catalysis activity by the fabric body that the method is obtained, and improves the efficiency for the treatment of of dyeing wastewater, just
In the recycling of fabric body, raw material is cheap, and pollution-free, preparation cost is low, can effective process dyeing waste water, operation letter
Single, economical and efficient.
The present invention employs the following technical solutions realization:
A kind of fabric for processing dyeing waste water, it includes fabric body, and the area load of fabric body has tio2/g-
c3n4Layer.
A kind of preparation method of the fabric for processing dyeing waste water comprises the steps: to remove the miscellaneous of fabric body surface
Matter.By fabric body, butyl titanate, acetic acid and g-c3n4It is placed in ultrasonic reactor, add ethanol to adjust in ultrasonic reactor
The volume of material accounts for the 60%~80% of ultrasonic reactor volume, carries out ultrasonic reaction.
The beneficial effect for processing the fabric of dyeing waste water and preparation method thereof that presently preferred embodiments of the present invention provides
It is:
Provided by the present invention for processing the fabric of dyeing waste water, the area load of fabric body has tio2/g-c3n4Layer,
tio2/g-c3n4Layer is composite nano materials, the tio of nanometer2/g-c3n4Widen tio2Spectral response range so as to have
Visible light catalysis activity;In fabric body area load nanometer tio2/g-c3n4, increase tio2/g-c3n4Contact with dyestuff
Area improves the efficiency for the treatment of of dyeing wastewater;It is easy to a nanometer tio2/g-c3n4Recycling, it is to avoid Conventional nano powder
Body material is easily reunited, and leads to the problem that photocatalytic activity reduces;Raw material is cheap, and pollution-free, preparation cost is low, can effective process
Dyeing waste water, simple to operate, economical and efficient.
Additionally, the preparation method of the fabric provided by the present invention for processing dyeing waste water, remove fabric body surface
Impurity, it is to avoid the impurity on fabric body surface is to tio2/g-c3n4The formation of layer impacts and can not uniformly form tio2/
g-c3n4Layer, also avoids tio2/g-c3n4The formation of layer is unstable, is susceptible to be desorbed.By fabric body, butyl titanate, acetic acid
And g-c3n4It is placed in ultrasonic reactor, add the volume that ethanol adjusts the material in ultrasonic reactor to account for ultrasonic reactor volume
60%~80%, carry out the fabric that ultrasonic reaction obtains for processing dyeing waste water, butyl titanate is in the work of ethanol and acetic acid
With issuing raw hydrolysis, generate tio of uniform size2Granule, by supersonic, water-heating method fabric body area load one
Layer nanometer tio2/g-c3n4Layer, makes a nanometer tio2/g-c3n4Layer has larger adhesion with fabric body surface, washs multiple
Or during using, nanometer tio2/g-c3n4Layer all can be supported in fabric body securely, will not fall off, make fabric body
Can be good at processing dyeing waste water.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to use required in embodiment
Figure is briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings and fall within protection scope of the present invention.
Fig. 1 is the process chart of the preparation method of the fabric provided by the present invention for processing dyeing waste water.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below will be in the embodiment of the present invention
Technical scheme be clearly and completely described.In embodiment, unreceipted actual conditions person, builds according to normal condition or manufacturer
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, being can be by the commercially available conventional product bought and obtain
Product.
Below the embodiment of the present invention is specifically described for processing fabric of dyeing waste water and preparation method thereof.
A kind of fabric for processing dyeing waste water, it includes fabric body, and the area load of fabric body has tio2/g-
c3n4Layer.tio2Inexpensive, nontoxic, and photocatalysis speed is fast, non-selectivity, degraded completely, g-c3n4Because of its unique electronics knot
Structure, special stratiform pattern and suitable bandwidth, show good absorption characteristic to visible ray.So, preparation
tio2/g-c3n4Layer composite nano materials are composite photocatalyst material, by tio2And g-c3n4Load to fabric body surface not only
The visible light-responded scope of composite photocatalyst material can be expanded, and using the internal electric field effect that physics hetero-junctions is formed, realize light
Raw electronics and the sharp separation in hole, thus significantly improving the Photocatalytic Degradation Property of composite, and realize multiple pollutant
Photocatalysis fall, and the easy recycling of this catalysis material.Nanometer tio2/g-c3n4Layer had both widened tio2Spectrum
Response range is so as to have visible light catalysis activity;Meanwhile, in fabric body area load nanometer tio2/g-c3n4, increase
tio2/g-c3n4With the contact area of dyestuff, improve the efficiency for the treatment of of dyeing wastewater;It is easy to a nanometer tio2/g-c3n4Recovery
Recycle, it is to avoid Conventional nano powder body material is easily reunited, lead to the problem that photocatalytic activity reduces;Raw material is cheap, no dirty
Dye, preparation cost is low, can effective process dyeing waste water, simple to operate, economical and efficient.
Fabric body can be chosen as polyacrylonitril fabrics body, dacron body or bafta body.It is preferably provided with:
Polyacrylonitril fabrics body can be selected as fabric body, polyacrylonitrile is that a kind of heat stability is high, radiation resistance is good, power
Learn the strong synthetic fibers of performance, it is more widely applied, and material cost is relatively low.
It is preferably provided with: in every square metre of fabric body, uniform load has the tio that weight is 1.0g~20.0g2/g-c3n4Layer.
Control nanometer tio2/g-c3n4The thickness of layer, prevents due to nanometer tio2/g-c3n4Layer is blocked up and make tio2/g-c3n4Layer load is not
Stable, it is susceptible to come off and tio2/g-c3n4Layer reunion, excessively thin and reduce fabric body process dyeing waste water efficiency.More
Goodly, tio2/g-c3n4The weight of layer is 1.0g/m2~15.0g/m2, wherein, tio2And g-c3n4Mass ratio be 20~5:1,
Fabric body is the most obvious to the treatment effect of waste water.
It is preferably provided with: fabric body is formed using plain weave weaving, makes fabric body have certain stiffness and guarantor
Holding property, extends the service life of fabric body.
As the process chart of the preparation method that Fig. 1 is the above-mentioned fabric for processing dyeing waste water, first pass through presoma
Reaction obtains g-c3n4, remove the impurity on fabric body surface, by clean fabric body, acetic acid, ethanol, butyl titanate meanwhile
And g-c3n4In addition ultrasonic reactor, ultrasonic reaction obtains the fabric for processing dyeing waste water, and is carried out, is dried
Remain to use.
A kind of preparation method of the fabric for processing dyeing waste water, comprises the steps:
(1), remove the impurity on fabric body surface.The impurity avoiding fabric body surface is to tio2/g-c3n4The formation of layer
Impact and can not uniformly form tio2/g-c3n4Layer, also avoids tio2/g-c3n4The formation of layer is unstable, is susceptible to
Desorption.
Specifically, remove fabric body surface impurity can carry out as follows: by fabric body 60 DEG C~
At 80 DEG C, concentration is the na of 0.2mol/l~2mol/l2co3Clean 5min~30min in solution, then fabric body is existed successively
It is cleaned by ultrasonic 5min~15min in dehydrated alcohol and deionized water, be finally putting into baking oven and dry at 60 DEG C~120 DEG C.Use
na2co3Solution has good dissolubility, impurity and oil preparation can carry out dissolving quickly and chemical reaction occurs and is washed
Wash, then fabric body is cleaned by ultrasonic in dehydrated alcohol, remove impurity and the oil preparation on fabric body surface further, and
By the effect of supersonic vibration, so that the fine impurities on fabric body surface is removed, finally fabric body is entered in deionized water
Row is cleaned by ultrasonic, and makes the cleaning of fabric body more thorough.Fabric body is dried, it is to avoid the moisture shadow in fabric body
Ring follow-up tio2/g-c3n4The load of layer.Dried at 60 DEG C~120 DEG C, in the case that moisture evaporation is relatively fast,
Fabric body is avoided burning to occur or burns.
(2), by fabric body, butyl titanate, acetic acid and g-c3n4It is placed in ultrasonic reactor, add ethanol to adjust ultrasonic
The volume of the material in reactor accounts for the 60%~80% of ultrasonic reactor volume, it is to avoid the solution in ultrasonic reactor very few and
Damage instrument, excessively sputter at outside ultrasonic reactor, impact reaction.g-c3n4For solid, in order that g-c3n4Dispersion is more equal
Even, first fabric body is mixed with a part of ethanol, add butyl titanate, acetic acid, be subsequently adding g-c3n4It is made to divide in the solution
Dissipate uniformly, the convenient surface being supported on fabric body, finally in the material being adjusted by ethanol in ultrasonic reactor
Volume.
Ultrasonic reaction obtains the fabric for processing dyeing waste water, in ultrasonic reactor, provides reaction by ethanol
Environment is it is possible to suppress the hydrolysis of butyl titanate to a certain extent, it is to avoid what butyl titanate was too fast is hydrolyzed into tio2, its
In, the ratio of fabric body and ethanol is (1:2~10) g/ml, so that fabric body complete wetting, in ethanol solution, is beneficial to
tio2/g-c3n4Uniform load is on the surface of fabric body.It is preferably provided with: ethanol is dehydrated alcohol.More preferably: butyl titanate with
g-c3n4Ratio be (1:0.5~2) ml/g, tio can be controlled2And g-c3n4Relative amount, make the fabric that finally obtains this
The photocatalysis effect of body is more preferably.Meanwhile, the volume adding acetic acid is the 0.6%~0.8% of ultrasonic reactor volume, can suppress
The too fast hydrolysis of butyl titanate, makes the tio of generation2Even particle size is controlled, and is uniformly supported on g-c3n4Surface.Profit
In in the surface of fabric body formation tio2/g-c3n4Layer obtains the fabric for processing dyeing waste water.
Start ultrasonic reactor so that the substance reaction in ultrasonic reactor is carried out in such a way, first 60 DEG C~
At 100 DEG C, ultrasonic constant temp reacts 2h~10h, then at 110 DEG C~160 DEG C, isothermal reaction 12h~48h, last 60 DEG C~
80 DEG C of ultrasonic constant temps keep 1/6h~1h, make the material mixing in ultrasonic reactor uniform, then at 110 DEG C~160 DEG C first
Under react, make tio2/g-c3n4Layer combines on the surface of fabric body, finally fabric body surface is combined unstable
tio2/g-c3n4Layer removes, it is to avoid its tio when processing dyeing waste water2/g-c3n4Layer is reunited, comes off.Wherein, temperature
The lifting of degree is all at the uniform velocity carried out, and can control tio2Granule is uniform, dispersion will not be reunited.During the course of the reaction, g-c3n4Quilt
Gradually peel off as lamellar structure, butyl titanate gradually hydrolyzes to form a nanometer tio simultaneously2Granule, loads to g-c3n4On lamella, lead to
Cross supersonic, water-heating method one layer of nanometer tio of area load in fabric body2/g-c3n4Layer, makes a nanometer tio2/g-c3n4Layer and fabric
Body surface has larger adhesion, during multiple washing or using, nanometer tio2/g-c3n4Layer all can be born securely
It is loaded in fabric body, will not fall off, make fabric body can be good at processing dyeing waste water.It is preferably provided with: ultrasonic reactor
For high pressure ultrasonic response kettle so as to load effect is more preferable.
Carry out the process of dyeing waste water and follow-up use for the ease of fabric, fabric is taken out from ultrasonic reactor, clearly
Wash, be dried.First using dehydrated alcohol, fabric is carried out, removes the Organic substance of fabric face, then by deionized water to knitting
Thing is carried out, and removes the inorganic matters of fabric face, finally freeze-day with constant temperature 1h-3h under the conditions of 60 DEG C~100 DEG C, removes fabric
In moisture, in order to the use of subsequent fabric.It is dried at 60 DEG C~100 DEG C, in the comparatively faster feelings of moisture evaporation
Under condition, it is to avoid the tio of fabric face2/g-c3n4Layer is desorbed.
Wherein, g-c3n4Can prepare in the following manner: presoma is warming up to 500 DEG C~600 DEG C, constant temperature is forged
Burn 1h~4h, then proceed to lower the temperature 20 DEG C~60 DEG C, calcining at constant temperature 1h~3h, form the g- of aggregating state after calcining for the first time
c3n4, the g-c of aggregating state after calcining for second, can be made3n4Become lamellar structure, after cooling, obtain g-c3n4Granule.Presoma
For one of thiourea, dicyanodiamine, tripolycyanamide or carbamide or two kinds.
g-c3n4Granule is fully ground by ball milling instrument, makes g-c3n4The particle diameter of granule reduces, and is easy to load, grinds
Afterwards using before can be carried out sealing preserve, it is to avoid it occurs rotten.
It is preferably provided with: be warming up to 500 DEG C~600 DEG C and carry out in such a way, with the intensification of 2 DEG C/min~15 DEG C/min
Speed is at the uniform velocity warming up to 500 DEG C~600 DEG C;20 DEG C~60 DEG C of cooling is carried out, in such a way with 5 DEG C/min~8 DEG C/min
Cooling rate at the uniform velocity lower the temperature 20 DEG C~60 DEG C.By the cooling that at the uniform velocity heats up, g-c can be controlled3n4Granule slabbing structure, its
Adhesion effect is good, will not reunite.
Embodiment 1
1) presoma thiourea is at the uniform velocity warming up to 500 DEG C with the speed of 2 DEG C/min, calcining at constant temperature 4h, then press 5 DEG C/min
Speed be at the uniform velocity cooled to 480 DEG C, calcining at constant temperature 1h, obtain g-c after natural cooling3n4, gained g-c3n4On ball milling instrument fully
Grind, sealing preserve is stand-by;2) take polyacrylonitril fabrics body in the na of 60 DEG C, 0.2mol/l2co3In solution, it is cleaned by ultrasonic
30min, then polyacrylonitril fabrics body is used respectively dehydrated alcohol and deionized water clean 5min and 15min in ultrasound wave;
It is finally putting into baking oven to dry at 60 DEG C;3) first polyacrylonitril fabrics body and dehydrated alcohol are added for 1:10g/ml in proportion
Enter in ultrasonic cleaning high pressure reactor, then according to the ratio of 1:2ml/g adds butyl titanate and g-c3n4, it is eventually adding dehydrated alcohol
To the 60% of ultrasonic cleaning high pressure reactor volume, first at 60 DEG C, ultrasonic constant temp reacts 2h, and then at 110 DEG C, constant temperature is anti-
Answer 12h, last 60 DEG C of ultrasonic constant temps keep 1/6h, and fabric is taken out, then use dehydrated alcohol and deionized water fully clear successively
Wash, freeze-day with constant temperature 1h under the conditions of 60 DEG C, that is, obtain the polyacrylonitril fabrics for processing dyeing waste water.
Using every square metre of gain in weight (unit g/m of fabric2) representing fabric load tio2/g-c3n4Amount, by reality
Test amount, the fabric gain in weight of the present embodiment is 7.0g/m2, polyacrylonitril fabrics size is 2cm2.
It is useless that the methylene blue (mb) that the concentration being configured by laboratory is 20mg/l, volume is 30ml is used as target printing and dyeing
Water, the high pressure xenon lamp with power as 300w, as light source, the above-mentioned fabrics of preparation is tiled or is vertically placed in dyeing waste water, passes through
After 60min, measure methylene blue degradation rate and reach 92%.
Embodiment 2
1) presoma dicyanodiamine, tripolycyanamide are at the uniform velocity warming up to 600 DEG C with the speed of 15 DEG C/min, calcining at constant temperature
1h, is then at the uniform velocity cooled to 540 DEG C by the speed of 8 DEG C/min, and calcining at constant temperature 3h obtains g-c after cooling3n4, gained g-c3n4?
It is fully ground on ball milling instrument, sealing preserve is stand-by;2) by dacron body 80 DEG C, 2mol/l na2co3In solution, ultrasonic
Cleaning 5min, then dacron body is used respectively dehydrated alcohol and deionized water clean 15min and 5min in ultrasound wave;?
After put into baking oven and dry at 120 DEG C;3) first will be ultrasonic for 1:2g/ml addition in proportion to dacron body and dehydrated alcohol
In autoclave, then according to the ratio of 1:0.5ml/g adds butyl titanate and g-c3n4, it is eventually adding dehydrated alcohol to anti-
Answer the 80% of kettle volume, first at 100 DEG C, ultrasonic constant temp reacts 10h, then at 160 DEG C, isothermal reaction 48h, finally
80 DEG C of ultrasonic constant temps keep 1h, fabric is taken out, is then fully cleaned with dehydrated alcohol and deionized water successively, in 100 DEG C of bars
Freeze-day with constant temperature 3h under part, that is, obtain the dacron for processing dyeing waste water.
Using every square metre of gain in weight (unit g/m of fabric2) representing fabric load tio2/g-c3n4Amount, by reality
Test amount, the fabric gain in weight of the present embodiment is 5.0g/m2, dacron size is 2cm2.
It is useless that the methylene blue (mb) that the concentration being configured by laboratory is 20mg/l, volume is 30ml is used as target printing and dyeing
Water, the high pressure xenon lamp with power as 300w, as light source, the above-mentioned fabrics of preparation is tiled or is vertically placed in dyeing waste water, passes through
After 60min, measure methylene blue degradation rate and reach 90%.
Embodiment 3
1) presoma carbamide is at the uniform velocity warming up to 550 DEG C by room temperature with the speed of 5 DEG C/min, calcining at constant temperature 3h, then press 6
DEG C/speed of min is at the uniform velocity cooled to 520 DEG C, calcining at constant temperature 1h, obtains g-c after natural cooling3n4, gained g-c3n4In ball milling instrument
On be fully ground, sealing preserve is stand-by;2) by polyacrylonitril fabrics body 70 DEG C, 1mol/l na2co3In solution, ultrasonic clear
Wash 15min, then polyacrylonitril fabrics body is used respectively dehydrated alcohol and deionized water clean in ultrasound wave 10min with
5min;It is finally putting into baking oven to dry at 80 DEG C;3) first by polyacrylonitril fabrics body and dehydrated alcohol in proportion for 1:5g/
Ml adds in ultrasonic cleaning high pressure reactor, then according to the ratio of 1:1ml/g adds butyl titanate and g-c3n4, it is eventually adding anhydrous
To the 70% of reactor volume, first at 80 DEG C, ultrasonic constant temp reacts 4h, then at 130 DEG C, isothermal reaction to ethanol
24h, last 70 DEG C of ultrasonic constant temps keep 20min, and fabric is taken out, and then use dehydrated alcohol and deionized water fully clear successively
Wash, freeze-day with constant temperature 2h under the conditions of 80 DEG C, that is, obtain the polyacrylonitril fabrics for processing dyeing waste water.
Using every square metre of gain in weight (unit g/m of fabric2) representing fabric load tio2/g-c3n4Amount, by reality
Test amount, the fabric gain in weight of the present embodiment is 10.0g/m2, polyacrylonitril fabrics size is 2cm2.
It is useless that the methylene blue (mb) that the concentration being configured by laboratory is 20mg/l, volume is 30ml is used as target printing and dyeing
Water, the high pressure xenon lamp with power as 300w, as light source, the above-mentioned fabrics of preparation is tiled or is vertically placed in dyeing waste water, passes through
After 60min, measure methylene blue degradation rate and reach 96%.
Embodiment 4
1) presoma dicyanodiamine is at the uniform velocity warming up to 550 DEG C by room temperature with the speed of 5 DEG C/min, calcining at constant temperature 3h, so
At the uniform velocity it is cooled to 520 DEG C by the speed of 6 DEG C/min afterwards, calcining at constant temperature 1h, obtain g-c after natural cooling3n4, gained g-c3n4?
It is fully ground on ball milling instrument, sealing preserve is stand-by;2) by bafta body 70 DEG C, 1mol/l na2co3In solution, ultrasonic clear
Wash 15min, then bafta body is used respectively dehydrated alcohol and deionized water clean 10min and 5min in ultrasound wave;Finally
Put into baking oven to dry at 80 DEG C;3) first bafta body and dehydrated alcohol are added ultrasonic cleaning high pressure for 1:5g/ml in proportion
In reactor, then according to the ratio of 1:1ml/g adds butyl titanate and g-c3n4, it is eventually adding dehydrated alcohol to reaction kettle body
Long-pending 70%, first at 80 DEG C, ultrasonic constant temp reacts 4h, then at 130 DEG C, isothermal reaction 24h, last 70 DEG C are ultrasonic
Constant temperature keeps 20min, fabric is taken out, is then fully cleaned with dehydrated alcohol and deionized water successively, permanent under the conditions of 80 DEG C
Temperature is dried 2h, that is, obtain the bafta for processing dyeing waste water.
Using every square metre of gain in weight (unit g/m of fabric2) representing fabric load tio2/g-c3n4Amount, by reality
Test amount, the fabric gain in weight of the present embodiment is 10.0g/m2, bafta size is 2cm2.
It is useless that the methylene blue (mb) that the concentration being configured by laboratory is 20mg/l, volume is 30ml is used as target printing and dyeing
Water, the high pressure xenon lamp with power as 300w, as light source, the above-mentioned fabrics of preparation is tiled or is vertically placed in dyeing waste water, passes through
After 60min, measure methylene blue degradation rate and reach 94%.
Embodiments described above is a part of embodiment of the present invention, rather than whole embodiments.The reality of the present invention
The detailed description applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected enforcement of the present invention
Example.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of not making creative work
Every other embodiment, broadly falls into the scope of protection of the invention.