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| The photocatalyst performance of the GAEA processed artifical flower |
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【*Methylene blue decolorzation test】
Evaluate photocatalyst activity by observing
the decolorization of methylene blue
Sample:
Left-artificial flower
Right-GAEA photocatalyst sprayed artificial flower (area of
one sheet approx. 25cm 2)
Evaluation conditions:
・Add 20ml (concentration 5 mg/L)
of methylene blue solution and obsrved it decolorizes
・Black light 20W×2
（distance between a light and a sample is approx. 5cm）
Result:
About 4hours later, methylene blue of
photocatalyst processed artificial flower was
decolorized almost completely.
Normal artificial flower was hardly changed
from intial stage. |
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Result of GAEA internal test |
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| [Formaldehyde deodorization test (figure below)] |
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| Sample: |
| Same artificial flowers used by the methylene blue decolorization test,and
empty one. |
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| Evaluation conditions: |
| Formaldehyde concentration of - 13 ppm, gas 1L |
| Black light 20W×2 (distance to sample approx. 10cm ). |
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| Result: |
4 hours later formaldehyde concentration
of photocatalyst processed artificial flower became less than harf. |
| Reduction of formaldehyde concentration in normal artificial flower is
based on adsorption on cloth etc. |
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| 【*Methylene blue decolorzation test】 |
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| is one of the method to evaluate oxidization decomposition photocatalyst. |
| photocatalyst's decomposition function is evaluated by oxidization decomposition
of methylene bule |
| attached on titanium dioxide thin film after photo irradiation. |
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| There is nicotine of Cigarette as common adsorption substance for this
test, |
| however it is no easy to attach nicotine on titanium dioxide thin file
enqually therefore coloring |
| matter is used as a model substance of dirt. |
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| Methylene blue attached on the cloth is hardly changed by photo irradiation
or methylene blue attached |
| on titanium dioxide is'nt changed at all without photo irradiation. |
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| However methylene blue attached on titanium dioxide is will be decomposed by catalyst rection |
| with photo irradiation and it will be decolorized. |
| We evaluate each dec-olorization staus by comparison and such evaluation
enables us |
| to obtainb reproducible data. |
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| Copyright (c) GAEA Allright Reserved. |
