CN106990202A - The evaluating apparatus and evaluation method of a kind of visible optical drive catalysis material water treatmenting performance - Google Patents
The evaluating apparatus and evaluation method of a kind of visible optical drive catalysis material water treatmenting performance Download PDFInfo
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- CN106990202A CN106990202A CN201710301800.0A CN201710301800A CN106990202A CN 106990202 A CN106990202 A CN 106990202A CN 201710301800 A CN201710301800 A CN 201710301800A CN 106990202 A CN106990202 A CN 106990202A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/10—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using catalysis
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Abstract
The invention provides a kind of evaluating apparatus of visible optical drive catalysis material water treatmenting performance and evaluation method.The present invention holds treatment sewage using tank；Catalysis material to be measured is placed using sample holder；Treatment sewage is set to flow to two weep pipes respectively from tank along oral siphon using water pump, then through osculum outflow flow into tank along catalysis material surface to be measured both sides respectively；Two side light sources is impinged upon catalysis material two sides through ultraviolet filter respectively, realize the evaluation of catalysis material water treatmenting performance under visible optical drive.The evaluating apparatus of catalysis material water treatmenting performance is easy to use under the visible optical drive that the present invention is provided, without being assembled according to different photocatalysis samples, evaluates and tests efficiency high.
Description
Technical field
The present invention relates to water-treatment technology field, more particularly to a kind of visible optical drive catalysis material water treatmenting performance
Evaluating apparatus and evaluation method.
Background technology
Visible light catalytic refers to that using semi-conducting material as catalyst under visible light illumination, induction chemically reacts
Process, the advantage is that can directly utilize sunshine, save the energy.In recent years, it is related to utilize visible ray in catalysis
Research is constantly subjected to the concern of countries in the world science personnel, because accounting of the visible ray in sunshine gross energy is maximum.
In order to be able to better profit from solar energy, many scientific research personnel, which are directed to developing, has visible light-responded catalysis material, such as stone
Black phase carbon nitride etc..It is a kind of inexorable trend to move towards industrialization with visible light-responded catalysis material, also must be to solving
Current environmental problem and energy crisis produce far reaching significance.
Although the research of visible light-responded catalysis material has obtained remarkable progress, related each pollutant it is visible
Comparative maturity is studied also in photocatalysis, but corresponding evaluation and test dress is but built in most research temporarily simply by labware
Put carry out experimental study.Thus cause two problems：One is that the evaluating apparatus that different experiments room is built is different, it has not been convenient to no
Compare with the photocatalysis performance between catalysis material；Two be that traditional evaluating method evaluation and test is less efficient, is usually applicable only to
The laboratory evaluation and test of small range, it is impossible to the assessment to actual photo-catalysis capability.
The content of the invention
It is an object of the invention to provide a kind of evaluating apparatus of visible optical drive catalysis material water treatmenting performance and comment
Valency method.The device of the visible optical drive catalysis material water treatmenting performance of evaluation that the present invention is provided is easy to use, evaluation and test
Efficiency high, and the comparison for the photocatalysis performance that can be used between different catalysis materials.
The invention provides a kind of evaluating apparatus of visible optical drive catalysis material water treatmenting performance, including tank, hang down
Directly it is arranged at the sample holder above the tank, is set in parallel in two optical filters of the sample holder both sides successively
Rack and two light sources and water circulation system；Ultraviolet filter is placed with described two optical filter racks；
The water circulation system includes oral siphon, water pump and two weep pipes；The two ends of the oral siphon respectively with tank
Bottom is connected with the water inlet of water pump；One end of described two weep pipes is connected with the delivery port of water pump, other end closure；It is described
Two weep pipes are set in parallel in the both sides directly over the sample holder, and described two weep pipes and sample holder phase
To side wall on be provided with osculum.
It is preferred that, the sample holder includes the stopper slot of bottom, the sample test plate insert port at top and both sides
Support bar.
It is preferred that, described two optical filter racks and the distance of plane where sample holder independently are 3~10cm.
It is preferred that, described two light sources and the distance of plane where sample holder independently are 5~30cm.
It is preferred that, the light source includes the fluorescent tube be arrangeding in parallel.
It is preferred that, the weep pipe is connected by water-supply-pipe with the delivery port of water pump, and the water-supply-pipe is adjusted provided with flow
Save valve.
It is preferred that, the osculum is 1~5cm with the horizontal range at the top of sample holder, and vertical range is 0~5cm.
It is preferred that, the aperture of the osculum is 1~10mm.
It is preferred that, the distribution density of the osculum is 20~500/m.
Present invention also offers a kind of evaluation method of catalysis material water treatmenting performance under visible optical drive, using above-mentioned
Evaluating apparatus described in technical scheme, comprises the following steps：
(1) catalysis material is placed on sample holder, treatment sewage is placed in tank；
(2) opening water pump makes treatment sewage flow to two weep pipes along oral siphon, is flowed out through osculum, then light-metering is treated on edge
Catalysis material surface both sides flow into tank, realize circulating for treatment sewage；
(3) two side light sources are opened, light is impinged upon catalysis material both side surface through ultraviolet filter respectively and carries out photocatalysis
Reaction, pollutant concentration in treatment sewage before and after measure light-catalyzed reaction.
The present invention achieves following technique effect relative to prior art：
The evaluating apparatus for the visible optical drive catalysis material water treatmenting performance that the present invention is provided includes tank, is vertically arranged
Sample holder above the tank, two optical filter racks for being set in parallel in the sample holder both sides successively
With two light sources and water circulation system；Ultraviolet filter is placed with described two optical filter racks；The water circulation system
System includes oral siphon, water pump and two weep pipes；The two ends of the oral siphon connect with the water inlet of bottom of gullet and water pump respectively
It is logical；One end of described two weep pipes is connected with the delivery port of water pump, other end closure；Described two weep pipes are set in parallel in
Draining is provided with both sides directly over the sample holder, and described two weep pipes side wall relative with sample holder
Hole.The present invention holds treatment sewage using tank；Catalysis material to be measured is placed using sample holder；Make to treat using water pump
Processing sewage flow to two weep pipes from tank along oral siphon respectively, then respectively through osculum outflow along catalysis material table to be measured
Face both sides flow into tank；Two side light sources is impinged upon catalysis material two sides through ultraviolet filter respectively, realize visible optical drive
The evaluation of lower catalysis material water treatmenting performance.Catalysis material water treatmenting performance comments under the visible optical drive that the present invention is provided
Valency device is easy to use, without being assembled according to different photocatalysis samples, evaluates and tests efficiency high, and can be used in not sharing the same light
The comparison of photocatalysis performance between catalysis material.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the main view of the evaluating apparatus of visible optical drive catalysis material water treatmenting performance provided in an embodiment of the present invention
Figure；
Fig. 2 is the vertical view of the evaluating apparatus of visible optical drive catalysis material water treatmenting performance provided in an embodiment of the present invention
Figure；
Fig. 3 is the side view of the evaluating apparatus of visible optical drive catalysis material water treatmenting performance provided in an embodiment of the present invention
Figure；
In figure, 1 is tank, and 2 be sample holder, and 3 be optical filter rack, and 4 be light source, and 5 be oral siphon, and 6 be water pump,
7 be weep pipe, and 8 be osculum, and 9 be stopper slot, and 10 be sample test plate insert port, and 11 be support bar, and 12 be water-supply-pipe, and 13 are
Flow control valve, 14 be flowmeter, and 15 be water fender, and 16 be cold wind blower, and 17 be ultraviolet filter；
Fig. 4 is fluorescent tube in the evaluating apparatus of visible optical drive catalysis material water treatmenting performance provided in an embodiment of the present invention
The front view of frame；
Fig. 5 is sample in the evaluating apparatus of visible optical drive catalysis material water treatmenting performance provided in an embodiment of the present invention
The front view of fixed mount；
Fig. 6 is the design sketch of catalysis material degradation of methylene blue in the embodiment of the present invention 2.
Embodiment
The invention provides a kind of evaluating apparatus of visible optical drive catalysis material water treatmenting performance, including tank, hang down
Directly it is arranged at the sample holder above the tank, is set in parallel in two optical filters of the sample holder both sides successively
Rack and two light sources and water circulation system；Ultraviolet filter is placed with described two optical filter racks；
The water circulation system includes oral siphon, water pump and two weep pipes；The two ends of the oral siphon respectively with tank
Bottom is connected with the water inlet of water pump；One end of described two weep pipes is connected with the delivery port of water pump, other end closure；It is described
Two weep pipes are set in parallel in the both sides directly over the sample holder, and described two weep pipes and sample holder phase
To side wall on be provided with osculum.
As shown in figure 1, the evaluating apparatus for the visible optical drive catalysis material water treatmenting performance that the present invention is provided includes water
Groove 1.The present invention does not have special restriction to the shape and size of the tank, is adjusted according to use condition.At this
In invention, the tank is preferably cuboid；The length of the tank is preferably 0.3~2m, more preferably 0.5~1.5m；It is described
The wide of tank is preferably 0.1~0.8m, more preferably 0.3~0.6m；The height of the tank is preferably 0.05~0.5m, more preferably
For 0.1~0.3m.In the present invention, the tank is used to hold treatment sewage；It is preferred that, the side wall of the tank is provided with
Volume markings, the scale can control amount of water, record total water process amount.
As shown in figure 1, the evaluating apparatus for the visible optical drive catalysis material water treatmenting performance that the present invention is provided includes hanging down
Directly it is arranged at the sample holder 2 of the top of tank 1.The present invention is not special to the distance of the sample holder and tank
Restriction, be adjusted according to actual needs.In the present invention, the distance of the sample holder bottom and sink top
Preferably 0~20cm, more preferably 5~15cm, most preferably 8~12cm.
In one embodiment of the invention, the sample holder 2 includes the stopper slot 9 of bottom, and the sample at top is surveyed
The support bar 11 of test plate (panel) insert port 10 and both sides.Specifically, the sample holder 2 is quadra, the bottom of the framework
Portion is stopper slot 9, and the top of framework is sample test plate insert port 10, and the both sides of framework are support bar 11.The present invention is to described
The size of sample holder does not have special restriction, it is ensured that water, which is flowed through, entirely falls in tank after sample.In the present invention, institute
State the sample that sample holder 2 is used to place catalysis material to be measured；The sample inserts sample by sample test plate insert port 10
Product fixed mount 2, is fixed by stopper slot 9 and the support bar 11 of both sides.
As depicted in figs. 1 and 2, the evaluating apparatus bag for the visible optical drive catalysis material water treatmenting performance that the present invention is provided
Include the two optical filter racks 3 and two light sources 4 for being set in parallel in the both sides of sample holder 2 successively.In the present invention,
The distance of described two optical filter racks 3 and plane where sample holder is preferably independently 3~10cm, more preferably 5
~8cm, most preferably 6~7cm.In an embodiment of the present invention, described two optical filters are symmetrically set relative to sample holder
Put.
In the present invention, it is placed with ultraviolet filter 17 on the optical filter rack.In the present invention, described two filters
It is preferred on mating plate rack to place identical optical filter.In the present invention, the ultraviolet filter to filter out the wavelength upper limit preferred
For 380~420nm, more preferably including 390nm, 400nm or 410nm.In the present invention, the ultraviolet filter can filter out purple
Outer light, obtains visible ray.In the present invention, the size of the optical filter rack is preferably not less than the size of sample holder,
To ensure to impinge upon all filtered filtering of light on sample.It is furthermore preferred that the optical filter rack be longer than sample holder 2~
5cm, is wider than 2~5cm of sample holder.
In the present invention, the distance of described two light sources and plane where sample holder is preferably independently 5~30cm,
More preferably 8~20cm, most preferably 10~15cm.In an embodiment of the present invention, described two light sources are solid relative to sample
Determine frame to be symmetrical arranged.The present invention does not have special restriction to the species of the light source, is used using well known to those skilled in the art
In light-catalysed light source.In the present invention, described two light sources are preferably identical light source.
In an embodiment of the present invention, the light source includes the fluorescent tube be arrangeding in parallel；The fluorescent tube can specifically include xenon
One kind in lamp, incandescent lamp, Halogen lamp LED, fluorescent lamp, dysprosium lamp, mercury lamp and LED.In the present invention, the wattage of the fluorescent tube is excellent
Elect 5~1000W, most preferably more preferably 10~500W, 20~100W as.The present invention is not special to the quantity of the fluorescent tube
Restriction, be adjusted according to actual needs.In the present invention, the quantity of the fluorescent tube is preferably 1~200, more excellent
Elect 5~100, most preferably 10~50 as.In an embodiment of the present invention, when the quantity of affiliated fluorescent tube is more than 3,
The fluorescent tube is in equidistantly to be uniformly distributed.As shown in figure 4, in an embodiment of the present invention, the fluorescent tube is fixed on tube rack.
The present invention does not have special restriction to the fixed form of the sample holder, optical filter rack and light source, adopts
With the mode well known to those skilled in the art being mechanically fixed.In an embodiment of the present invention, two tube racks pass through whole
Body framework is connected, and neck is set in the middle of the general frame, and the neck is used to place sample holder, the neck and fluorescent tube
Optical filter rack is provided between frame.Specifically, as shown in figure 5, the sample holder is accommodated by two supporting rods up and down, on
The supporting rod two ends extension at end, is fixed in the middle of the tube rack of both sides by neck, drop handle is set in the middle of the supporting rod of upper end, is passed through
Pull-up drop handle can take out sample holder from neck.
As shown in figure 1, in one embodiment of the invention, cold wind blower 16 is provided with above the fluorescent tube.This hair
The bright distance to the cold wind blower and fluorescent tube does not have special restriction, is adjusted according to actual needs.At this
In invention, the distance of the cold wind blower and fluorescent tube is preferably 5~30cm, more preferably 10~25cm, most preferably 15
~20cm.In the present invention, the cold wind blower is used to dry to fluorescent tube, promotes fluorescent tube radiating.
As shown in figure 1, the evaluating apparatus for the visible optical drive catalysis material water treatmenting performance that the present invention is provided includes water
The circulatory system；The water circulation system includes oral siphon 5, water pump 6 and two weep pipes 7；The two ends of the oral siphon 5 respectively with
Bottom of gullet is connected with the water inlet of water pump 6；One end of described two weep pipes 7 is connected with the delivery port of water pump 6, another end seal
It is stifled；Described two weep pipes 7 are set in parallel in the both sides directly over the sample holder, and described two weep pipes 7 and sample
Osculum 8 is provided with the relative side wall of product fixed mount 2.In the present invention, the water circulation system circulates treatment sewage
Flowing；The water pump makes the treatment sewage in tank branch to weep pipe through oral siphon, is then dripped respectively from described two
The osculum outflow of pipe, tank is flowed into through sample surfaces.
The present invention does not have special restriction to the size of the weep pipe, is adjusted according to actual needs.At this
In invention, the diameters of described two weep pipes preferably independently for 1~10cm, more preferably 1.5~6cm, most preferably 2~
4cm.In the present invention, described two weep pipes are symmetrical arranged preferably with respect to plane where sample holder.
In the present invention, the osculum and sample holder top horizontal distance preferably 1~5cm, more preferably 2~
4cm；Vertical range is preferably 0~5cm, more preferably 2~4cm.In the present invention, the aperture of the osculum be preferably 1~
10mm, more preferably 2~8mm, most preferably 4~6mm.In the present invention, the distribution density of the osculum be preferably 20~
500/m, most preferably more preferably 50~400/m, 100~300/m.In the present invention, the osculum ensures water
Stream flows uniformly through catalysis material sample surfaces to be measured.
As shown in figure 1, in one embodiment of the invention, the water outlet that the weep pipe 7 passes through water-supply-pipe 12 and water pump 6
Mouth connection.In one embodiment of the invention, the water-supply-pipe is provided with flow control valve.As shown in figure 1, the present invention's
In one embodiment, the water-supply-pipe 12 is provided with flow control valve 13 in the branch pipe for also including connecting with tank, the branch pipe.
In one embodiment of the invention, it is additionally provided with flowmeter 14 on the water-supply-pipe 12.In the present invention, the flow control valve
By controlling circulation to flow into the water-carrying capacity of tank, the flow for adjusting the treatment sewage for flowing into weep pipe, the flowmeter
Record flows into the water-carrying capacity of the stable circulation of weep pipe.
As shown in figure 3, in one embodiment of the invention, water fender 15 is provided between the weep pipe 7 and light source 4.
The present invention does not have special restriction to the positions and dimensions of the water fender, and the current that weep pipe can be avoided to flow out are splashed down in light
On source and do not stop that light source is impinged upon on sample.In an embodiment of the present invention, the water fender is square plate；The dash
The length of plate is preferably identical with width of light source, and the wide of the water fender is preferably 5~10cm, more preferably 6~8cm.
Present invention also offers a kind of evaluation method of catalysis material water treatmenting performance under visible optical drive, using above-mentioned
Evaluating apparatus described in technical scheme, comprises the following steps：
(1) catalysis material is placed on sample holder, treatment sewage is placed in tank；
(2) opening water pump makes treatment sewage flow to two weep pipes along oral siphon, is flowed out through osculum, then light-metering is treated on edge
Catalysis material surface both sides flow into tank, realize circulating for treatment sewage；
(3) two side light sources are opened, light is impinged upon catalysis material both side surface through ultraviolet filter respectively and carries out photocatalysis
Reaction, pollutant concentration in treatment sewage before and after measure light-catalyzed reaction.
Catalysis material is placed on sample holder by the present invention, and treatment sewage is placed in tank.The present invention is to institute
Stating the species of catalysis material does not have special restriction, using catalysis material well known to those skilled in the art.At this
In invention, the catalysis material is preferably film material, fabric shape material, sheet material or sheet material.In the present invention, it is described
Catalysis material preferably inserts sample holder by sample test plate insert port, is fixed by the support bar of stopper slot and both sides.
The present invention does not have special restriction to the amount of the treatment sewage, is adjusted according to actual needs.
In the present invention, the volume of the treatment sewage is preferably 0.5~500L, more preferably 1~300L, most preferably 10~
100L.The present invention does not have special restriction to the species of pollutant in the treatment sewage, is selected according to actual needs
.In the present invention, the pollutant in the treatment sewage preferably includes dyestuff, medicine, personal-care supplies and organic
One or more in agricultural chemicals.The present invention does not have special restriction to the concentration of pollutant in the treatment sewage, according to reality
Border needs to be selected.In the present invention, the molar concentration of pollutant is preferably 10 in the treatment sewage-6~10- 3Mol/L, more preferably 10-5~10-4mol/L。
After the completion of the placement of catalysis material and treatment sewage, the present invention, which opens water pump, makes treatment sewage along oral siphon
Two weep pipes are flow to, are flowed out through osculum, then tank is flowed into along catalysis material surface to be measured both sides, treatment sewage is realized
Circulate.In the present invention, the treatment sewage separately flows into two preferably in the presence of water pump by water-supply-pipe
Weep pipe.The present invention preferably passes through the flow of Flow-rate adjustment valve regulation treatment sewage.The present invention is to the treatment sewage
Flow does not have special restriction, current is flowed uniformly through catalysis material surface and is defined.In the present invention, it is described pending
The flow of sewage is preferably 0.1~2000L/h, more preferably 10~1500L/h, most preferably 100~1000L/h.In this hair
In bright, the pressure of the current is preferably 0.1~1MPa, more preferably 0.4~0.8MPa.
After treatment sewage is circulated, the present invention opens two side light sources, light is impinged upon light through ultraviolet filter respectively and urges
Change material both side surface and carry out light-catalyzed reaction, pollutant concentration in treatment sewage before and after measure light-catalyzed reaction.The present invention
There is no special restriction to the assay method of the pollutant concentration, using measure material concentration well known to those skilled in the art
Method.In the present invention, the measure of the pollutant concentration preferably includes ultraviolet-uisible spectrophotometer determination method, height
Effect liquid phase chromatogram analytic approach, HPLC-MS analytic approach, gas chromatography-mass spectrometry, chemical oxygen demand are measured
Determine the one or more in method, BOD determination method, total content of organic carbon determination method and titration.In the present invention, lead to
The concentration for determining a certain amount for the treatment of sewage in light-catalyzed reaction front and rear pollutant for a period of time is crossed, to evaluate catalysis material
Water treatmenting performance.
In order to further illustrate the present invention, photocatalysis material under the visible optical drive provided with reference to embodiment the present invention
Expect that the evaluating apparatus and evaluation method of water treatmenting performance are described in detail, but they can not be interpreted as to present invention protection
The restriction of scope.
Embodiment 1：
The evaluating apparatus of visible optical drive catalysis material water treatmenting performance includes tank, is vertically installed in the present embodiment
Sample holder above the tank, two optical filter racks for being set in parallel in the sample holder both sides successively and
Two light sources and water circulation system；Ultraviolet filter is placed with described two optical filter racks；The water circulation system
Including oral siphon, water pump and two weep pipes；Water inlet of the two ends of the oral siphon respectively with bottom of gullet and water pump is connected；
One end of described two weep pipes is connected with the delivery port of water pump, other end closure；Described two weep pipes are set in parallel in institute
State and be provided with draining on the both sides directly over sample holder, and described two weep pipes side wall relative with sample holder
Hole.
Sample holder is demountable 35cm × 60cm quadras.Tube rack is located at sample holder both sides, lamp
Pipe support plane be arranged in parallel 3 fluorescent tubes respectively, and fluorescent tube is 50W xenon lamp, and fluorescent tube is respectively perpendicular horizontal plane and is placed on tube rack,
The distance of 3 fluorescent tube proportional spacing distributions, tube rack and plane where specimen holder is 10cm.Divide between both sides tube rack and specimen holder
Not She Zhi an optical filter rack, placement ultraviolet filter be 400nm, below 400nm ultraviolet light can be filtered.
The input port of water pump is connected with stretching into the oral siphon of bottom of gullet, and water pump delivery outlet branches to two by water-supply-pipe
Weep pipe；Water-supply-pipe is provided with flow control valve and flowmeter.It is relative with sample holder top that weep pipe is respectively provided with a row
Osculum, aperture 5mm is opened after flow control valve, current are sprayed from osculum, and an angle of 90 degrees is vertically sprayed on sample holder
Catalysis material, then flowed down along material surface, flow into lower section tank, liquid level scale is set on tank, to control record total
Water process amount.A piece of water fender is set respectively between weep pipe and both sides tube rack, prevents current from splashing to fluorescent tube, causes danger；Match somebody with somebody
Electronic box is arranged on the tube rack of side.
Embodiment 2：
Using the device in embodiment 1, the photocatalysis non-woven fabrics that 3wt% graphite phase carbon nitrides/metal phthalocyanine is combined is entered
Water-filling process performance is evaluated：
The catalysis material of test board size is intercepted, is clamped and fastened on test board, catalysis material need are two-sided all
With photocatalytic activity；2 liter 1 × 10 is placed in tank-5The aqueous solution of methylene blue of mol/L concentration；
The flow control valve on water pump and regulation weep pipe is opened to 800L/h, water is uniformly flow to sample test by weep pipe
Flowed down on plate and along its surface；
After after flow speed stability, connecting fluorescent tube, interval time sampling determines photocatalysis anti-by ultraviolet-uisible spectrophotometer
The pollutant load before and after certain time is answered, the water treatmenting performance of the catalysis material is evaluated and tested.
The design sketch of the catalysis material degradation of methylene blue is as shown in fig. 6, its 70 minutes degradation rate is up to 91%.
Embodiment 3：
By the xenon lamp that the lamp tube replacement in the evaluating apparatus in embodiment 1 is 100W, optical filter is replaced by 380nm, filtered
Less than 380 nanometers of ultraviolet light, osculum is relative with sample holder top, 60 degree of angles of current is sprayed on sample holder
Catalysis material, water treatmenting performance evaluation is carried out to the photocatalysis non-woven fabrics for loading 4wt% graphite phase carbon nitrides：
The catalysis material of test board size is intercepted, is clamped and fastened on test board, catalysis material need are two-sided all
With photocatalytic activity；2 liter 2 × 10 is placed in tank-5The aqueous solution of methylene blue of mol/L concentration；
The flow control valve on water pump and regulation weep pipe is opened to 600L/h, water is uniformly flow to sample test by weep pipe
Flowed down on plate and along its surface；
After after flow speed stability, connecting fluorescent tube, interval time sampling determines photocatalysis anti-by ultraviolet-uisible spectrophotometer
The pollutant load before and after certain time is answered, the water treatmenting performance of the catalysis material is evaluated and tested.After measured the degraded of 30 minutes
Rate is up to 86%.
Embodiment 4：
Water process is carried out to the photocatalysis nickel foam for loading 4wt% graphite phase carbon nitrides using the device in embodiment 1
It can evaluate：
The catalysis material of test board size is intercepted, is clamped and fastened on test board, catalysis material need are two-sided all
With photocatalytic activity；2 liter 2 × 10 is placed in tank-5The aqueous solution of methylene blue of mol/L concentration；
The flow control valve on water pump and regulation weep pipe is opened to 800L/h, water is uniformly flow to sample test by weep pipe
Flowed down on plate and along its surface；
After after flow speed stability, connecting fluorescent tube, interval time sampling determines photocatalysis anti-by ultraviolet-uisible spectrophotometer
The pollutant load before and after certain time is answered, the water treatmenting performance of the catalysis material is evaluated and tested.After measured the degraded of 150 minutes
Rate is up to 86%.
Embodiment 5：
Water process is carried out to the photocatalysis nickel foam for loading 4wt% graphite phase carbon nitrides using the identical device of embodiment 3
Performance evaluation：
The catalysis material of test board size is intercepted, is clamped and fastened on test board, catalysis material need are two-sided all
With photocatalytic activity；3 liter 1 × 10 is placed in tank-5The aqueous solution of methylene blue of mol/L concentration；
The flow control valve on water pump and regulation weep pipe is opened to 800L/h, water is uniformly flow to sample test by weep pipe
Flowed down on plate and along its surface；
After after flow speed stability, connecting fluorescent tube, interval time sampling determines photocatalysis anti-by ultraviolet-uisible spectrophotometer
The pollutant load before and after certain time is answered, the water treatmenting performance of the catalysis material is evaluated and tested.After measured the degraded of 50 minutes
Rate is up to 86%.
Embodiment 6：
Water process is carried out to the photocatalytic fiber net for loading 4wt% graphite phase carbon nitrides using the identical device of embodiment 3
Performance evaluation：
The catalysis material of test board size is intercepted, is clamped and fastened on test board, catalysis material need are two-sided all
With photocatalytic activity；2 liter 2 × 10 is placed in tank-5The cistosulfa aqueous solution of mol/L concentration；
The flow control valve on water pump and regulation weep pipe is opened to 800L/h, water is uniformly flow to sample test by weep pipe
Flowed down on plate and along its surface；
After after flow speed stability, connecting fluorescent tube, interval time sampling determines light-catalyzed reaction certain by high performance liquid chromatography
Pollutant load before and after time, evaluates and tests the water treatmenting performance of the catalysis material.The degradation rate for obtaining 220 minutes after measured reaches
84%.
As can be seen from the above embodiments, catalysis material water treatmenting performance comments under the visible optical drive that the present invention is provided
Valency device is easy to use, without being assembled according to different photocatalysis samples, evaluates and tests efficiency high, and can be used in not sharing the same light
The comparison of photocatalysis performance between catalysis material.
Described above is only the preferred embodiment of the present invention, not makees any formal limitation to the present invention.Should
Point out, for those skilled in the art, under the premise without departing from the principles of the invention, if can also make
Dry improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of evaluating apparatus of visible optical drive catalysis material water treatmenting performance, including tank, it is vertically installed in the water
Sample holder above groove, the two optical filter racks and two light for being set in parallel in the sample holder both sides successively
Source and water circulation system；Ultraviolet filter is placed with described two optical filter racks；
The water circulation system includes oral siphon, water pump and two weep pipes；The two ends of the oral siphon respectively with bottom of gullet
Connected with the water inlet of water pump；One end of described two weep pipes is connected with the delivery port of water pump, other end closure；It is described two
Weep pipe is set in parallel in the both sides directly over the sample holder, and described two weep pipes are relative with sample holder
Osculum is provided with the wall of side.
2. evaluating apparatus according to claim 1, it is characterised in that the sample holder includes the stopper slot of bottom,
The sample test plate insert port and the support bar of both sides at top.
3. evaluating apparatus according to claim 1 or 2, it is characterised in that described two optical filter racks are consolidated with sample
The distance of plane independently is 3~10cm where determining frame.
4. evaluating apparatus according to claim 1 or 2, it is characterised in that described two light sources and sample holder place
The distance of plane independently is 5~30cm.
5. evaluating apparatus according to claim 4, it is characterised in that the light source includes the fluorescent tube be arrangeding in parallel.
6. evaluating apparatus according to claim 1, it is characterised in that the water outlet that the weep pipe passes through water-supply-pipe and water pump
Mouth connection, the water-supply-pipe is provided with flow control valve.
7. evaluating apparatus according to claim 1, it is characterised in that the osculum and the level at the top of sample holder
Distance is 1~5cm, and vertical range is 0~5cm.
8. the evaluating apparatus according to claim 1 or 7, it is characterised in that the aperture of the osculum is 1~10mm.
9. evaluating apparatus according to claim 8, it is characterised in that the distribution density of the osculum is 20~500/
m。
10. a kind of evaluation method of catalysis material water treatmenting performance under visible optical drive, usage right requirement 1~9 is any one
Evaluating apparatus described in, comprises the following steps：
(1) catalysis material is placed on sample holder, treatment sewage is placed in tank；
(2) opening water pump makes treatment sewage flow to two weep pipes along oral siphon, is flowed out through osculum, then along photocatalysis to be measured
Material surface both sides flow into tank, realize circulating for treatment sewage；
(3) two side light sources are opened, light is impinged upon catalysis material both side surface through ultraviolet filter respectively and carries out light-catalyzed reaction,
Pollutant concentration in treatment sewage before and after measure light-catalyzed reaction.
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Application publication date: 20170728 |