CN105445261A - Method for detecting photocatalytic performance of photocatalyst TiO2 fabric cloth covers - Google Patents
Method for detecting photocatalytic performance of photocatalyst TiO2 fabric cloth covers Download PDFInfo
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- CN105445261A CN105445261A CN201510819640.XA CN201510819640A CN105445261A CN 105445261 A CN105445261 A CN 105445261A CN 201510819640 A CN201510819640 A CN 201510819640A CN 105445261 A CN105445261 A CN 105445261A
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- Prior art keywords
- cloth
- beaker
- cloth specimen
- specimen
- photocatalyst
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
Abstract
The invention discloses a method for detecting photocatalytic performance of photocatalyst TiO2 fabric cloth covers. According to the method, unfinished and finished photocatalyst TiO2 fabric cloth samples are taken, rhodamine B is added, the samples are irradiated by a 200 W spotlight in a color assessment cabinet, the absorbance of the cloth samples is measured once at regular intervals, the color changes from dark red to light red till colorless with the decrease of the absorbance, the shorter the fading time of the cloth samples is, the higher the photocatalytic performance of the photocatalyst TiO2 fabric cloth covers is, and the time that the cloth samples fade to be colorless is counted. The method is simple to operate and accurate in judgment, and the photocatalytic performance of the photocatalyst TiO2 fabric cloth covers can be evaluated directly.
Description
Technical field
The present invention relates to Photo-Catalyst Fabric field, be specifically related to a kind of photocatalyst TiO
2fabrics cloth cover photocatalysis performance detection method.
Background technology
Light urges matchmaker to be a kind of with nanoscale TiO
2for the general name with the photosemiconductor material of photo-catalysis function of representative, it is the current most ideal material administering indoor environmental pollution in the world, under the effect of light, produce strong catalytic degradation function, as toxic and harmfuls such as formaldehyde in air of effectively degrading; Effectively can kill various bacteria, antibiotic rate is up to 99.99%, and the toxin that bacterium or fungi can be discharged decomposes and harmless treatment; Also possesses the function such as deodorizing, anti-soil simultaneously.
In recent years, due to the appearance of " finishing pollution syndrome ", pollution of indoor environment is frequently existing, becomes the focus that people pay close attention to.According to authority, exceed standard at the house fitting pollution of China more than 70%, and seriously polluted exceeding standard reaches more than 30%.It not only can cause the diseases such as pneumonia, tracheitis, leukaemia, cerebral thrombus, also may cause a series of diseases such as pregnant woman miscarries, newborn teratogenesis.By nanoscale TiO
2arrange in fabric face, form photocatalyst product, meet consumer's " demand for security ", market outlook are very wide.
But as the Photo-Catalyst Fabric product of new and high technology photocatalysis performance how? an at present not perfect detection method.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of photocatalyst TiO
2fabrics cloth cover photocatalysis performance detection method, simple to operation, accuracy is high, can assess photocatalyst TiO intuitively
2fabrics cloth cover photocatalysis performance is good and bad.
The present invention is achieved through the following technical solutions:
A kind of photocatalyst TiO
2fabrics cloth cover photocatalysis performance detection method, comprises
A, by the cloth of homogenous quantities, be cut into the sample that 2cm*2cm is square respectively, a cloth sample in contrast wherein, remaining cloth specimen uses photocatalyst TiO respectively
2the hydrosol arranges, and then control sample and the cloth specimen after the hydrosol arranges is put into beaker respectively;
B, in the beaker that cloth specimen is housed, add the rhodamine B of concentration 50mg/L equivalent respectively, stir cloth specimen tiling with glass bar and put;
C, open colorimetric lamp box power supply, the beaker that sample is housed is put into colorimetric lamp box shot-light and irradiate;
D, mensuration wavelength is adjusted to 550nm, blank with the contrast of 1cm cuvette, using distilled water as reference, measure the absorbance of a cloth specimen every the set time, statistics cloth specimen took off to the colourless time used.
The further improvement project of the present invention is, every part of cloth specimen quality is about 4g; To in the beaker that cloth specimen is housed, respectively add 50ml concentration 50mg/L rhodamine B with pipette.
The present invention further improvement project is, described cloth specimen after the hydrosol arranges, refers to and fabric is immersed photocatalyst TiO
2in the hydrosol, taking-up is extracted, then drying obtains.
The present invention further improvement project posts label on beaker, is easy to differentiate.
The present invention has following obvious advantage:
The present invention is simple to operate, passes judgment on accurately, can assess photocatalyst TiO intuitively
2fabrics cloth cover photocatalysis performance is good and bad.
Embodiment
A kind of photocatalyst TiO
2fabrics cloth cover photocatalysis performance detection method, comprises
A, by the cloth of homogenous quantities, be cut into the sample that 2cm*2cm is square respectively, every block cloth 4g, a cloth sample in contrast wherein, remaining cloth specimen uses photocatalyst TiO respectively
2the hydrosol arranges, and then control sample and the cloth specimen after the hydrosol arranges is put into 250ml beaker respectively, beaker posts label, is easy to differentiate (label 1,2,3 respectively ... 11); Described cloth specimen after the hydrosol arranges, refers to and fabric is immersed photocatalyst TiO
2in the hydrosol, taking-up is extracted, then drying obtains.
B, in the beaker that cloth specimen is housed, respectively add the rhodamine B of 50ml concentration 50mg/L equivalent respectively with pipette, stir cloth specimen tiling with glass bar and put;
C, open colorimetric lamp box power supply, the beaker that sample is housed is put into colorimetric lamp box 200W shot-light and irradiate;
D, mensuration wavelength is adjusted to 550nm, blank with the contrast of 1cm cuvette, using distilled water as reference, observe the absorbance of cloth specimen, the less i.e. color of absorbance shoals red by dark red, until colourless, cloth specimen fading time is shorter, shows photocatalyst TiO
2fabrics cloth cover photocatalysis performance is stronger, and statistics cloth specimen took off to the colourless time used.
| Sequence number | TiO 2Particle diameter | TiO on fabric 2Solid content | Fading time |
| 1 | 70 nanoscales | 50% | About 40 hours |
| 2 | 70 nanoscales | 80% | About 25 hours |
| 3 | 50 nanoscales | 50% | About 25 hours |
| 4 | 50 nanoscales | 80% | About 15 hours |
| 5 | 30 nanoscales | 50% | About 15 hours |
| 6 | 30 nanoscales | 80% | About 10 hours |
| 7 | 10 nanoscales | 50% | About 15 hours |
| 8 | 10 nanoscales | 80% | About 10 hours |
| 9 | 5 nanoscales | 50% | About 8 hours |
| 10 | 5 nanoscales | 80% | About 5 hours |
Claims (4)
1. a photocatalyst TiO
2fabrics cloth cover photocatalysis performance detection method, is characterized in that: comprise
A, by the cloth of homogenous quantities, be cut into the sample that 2cm*2cm is square respectively, a cloth sample in contrast wherein, remaining cloth specimen uses photocatalyst TiO respectively
2the hydrosol arranges, and then control sample and the cloth specimen after the hydrosol arranges is put into beaker respectively;
B, in the beaker that cloth specimen is housed, add the rhodamine B of concentration 50mg/L equivalent respectively, stir cloth specimen tiling with glass bar and put;
C, open colorimetric lamp box power supply, the beaker that sample is housed is put into colorimetric lamp box 200W shot-light and irradiate;
D, mensuration wavelength is adjusted to 550nm, blank with the contrast of 1cm cuvette, using distilled water as reference, measure the absorbance of a cloth specimen every the set time, statistics cloth specimen took off to the colourless time used.
2. a kind of photocatalyst TiO according to claim 1
2fabrics cloth cover photocatalysis performance detection method, is characterized in that: every part of cloth specimen quality is about 4g; To in the beaker that cloth specimen is housed, respectively add 50ml concentration 50mg/L rhodamine B with pipette.
3. a kind of photocatalyst TiO according to claim 1
2fabrics cloth cover photocatalysis performance detection method, is characterized in that: described cloth specimen after the hydrosol arranges, refers to and fabric is immersed photocatalyst TiO
2in the hydrosol, taking-up is extracted, then drying obtains.
4. a kind of photocatalyst TiO according to claim 1
2fabrics cloth cover photocatalysis performance detection method, is characterized in that: on beaker, post label, is easy to differentiate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510819640.XA CN105445261A (en) | 2015-11-23 | 2015-11-23 | Method for detecting photocatalytic performance of photocatalyst TiO2 fabric cloth covers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510819640.XA CN105445261A (en) | 2015-11-23 | 2015-11-23 | Method for detecting photocatalytic performance of photocatalyst TiO2 fabric cloth covers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105445261A true CN105445261A (en) | 2016-03-30 |
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ID=55555711
Family Applications (1)
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|---|---|---|---|
| CN201510819640.XA Pending CN105445261A (en) | 2015-11-23 | 2015-11-23 | Method for detecting photocatalytic performance of photocatalyst TiO2 fabric cloth covers |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010012539A1 (en) * | 1998-01-21 | 2001-08-09 | Barnard Steven M. | Methods for producing optical sensors with reflective materials |
| CN101021469A (en) * | 2007-03-20 | 2007-08-22 | 华中科技大学 | Method for detecting optical self-cleaning material photocatalysis performance by fluorophotometry |
| CN102078805A (en) * | 2010-12-14 | 2011-06-01 | 华东理工大学 | Preparation method of layered titanium dioxide photochemical catalyst |
| CN102266792A (en) * | 2011-06-13 | 2011-12-07 | 华东理工大学 | Synthesis method for visible photocatalyst by modifying titanium dioxide by using ammonium fluoride |
| CN102357360A (en) * | 2011-09-07 | 2012-02-22 | 南昌航空大学 | Catalyst for degrading rhodamine B by photocatalysis, and preparation method thereof |
| CN103933958A (en) * | 2014-04-22 | 2014-07-23 | 苏州聚康新材料科技有限公司 | Preparation method of sol with photo-catalytic activity |
-
2015
- 2015-11-23 CN CN201510819640.XA patent/CN105445261A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010012539A1 (en) * | 1998-01-21 | 2001-08-09 | Barnard Steven M. | Methods for producing optical sensors with reflective materials |
| CN101021469A (en) * | 2007-03-20 | 2007-08-22 | 华中科技大学 | Method for detecting optical self-cleaning material photocatalysis performance by fluorophotometry |
| CN102078805A (en) * | 2010-12-14 | 2011-06-01 | 华东理工大学 | Preparation method of layered titanium dioxide photochemical catalyst |
| CN102266792A (en) * | 2011-06-13 | 2011-12-07 | 华东理工大学 | Synthesis method for visible photocatalyst by modifying titanium dioxide by using ammonium fluoride |
| CN102357360A (en) * | 2011-09-07 | 2012-02-22 | 南昌航空大学 | Catalyst for degrading rhodamine B by photocatalysis, and preparation method thereof |
| CN103933958A (en) * | 2014-04-22 | 2014-07-23 | 苏州聚康新材料科技有限公司 | Preparation method of sol with photo-catalytic activity |
Non-Patent Citations (2)
| Title |
|---|
| 张烨: "TiO2纳米粒子的制备及其在织物上的应用", <中国优秀硕士学位论文全文数据库> * |
| 杨辉等: "锐钛矿TiO2溶胶的光催化反应动力学", <稀有金属材料与工程> * |
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Application publication date: 20160330 |
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