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A method of testing solid-liquid interface photochemical reaction with cuvette

A technology of photochemical reaction and solid-liquid interface, which is applied in the field of spectral testing in optical experiments, can solve the problems of equipment damage, surface distribution affecting data repeatability and reliability, etc., to avoid solvent volatilization, repeatability and reliability sex enhancing effect

Active Publication Date: 2017-01-04
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, factors such as the volatility of the solvent and the uneven distribution of the solution on the surface of the solid sample seriously affect the repeatability and reliability of the obtained data.
Moreover, some solutions are acidic, alkaline or otherwise corrosive, which will cause damage to equipment

Method used

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  • A method of testing solid-liquid interface photochemical reaction with cuvette
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  • A method of testing solid-liquid interface photochemical reaction with cuvette

Examples

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Embodiment 1

[0032] refer to Figure 1 to Figure 8 , this embodiment provides a method for testing the photochemical reaction at the solid-liquid interface with a cuvette, the cuvette includes a body A and an upper cover B, and the inner edge of the cuvette body A is a right-angled inner edge , the front 1 is made of colorless transparent quartz glass, the bottom 2 is made of frosted glass, and the rest of the surfaces are made of colorless transparent glass. The cavity volume of the cuvette is a×b×c=30mm×0.8mm×30mm. Place a silicon wafer with a thickness of 0.5mm (length×width=27mm×27mm) engraved with nanowires in the cavity of the cuvette body A, with the nanowires facing the front side 1, and then drop 10 -4 The phenol solution of M, the solution will immerse the silicon wafer, and a layer of 0.3mm thick liquid layer is formed on the side engraved with nanowires, cover the upper cover B on the cuvette body A, and then put the colorimetric cuvette containing the sample The dish is fixe...

Embodiment 2

[0034] refer to Figure 1 to Figure 8 , this embodiment provides a method for testing the photochemical reaction at the solid-liquid interface with a cuvette, the cuvette includes a body A and an upper cover B, and the inner edge of the cuvette body A is a sloped inner edge , the front 1 is made of colorless transparent quartz glass, the bottom 2 is made of frosted glass, and the rest of the surfaces are made of colorless transparent glass. The cavity volume of the cuvette is a×b×c=45mm×1.2mm×30mm. Place a FTO conductive glass with a thickness of 1mm (length×width=40mm×25mm) deposited with a white translucent titanium dioxide film in the cavity of the cuvette body A, the white translucent titanium dioxide film faces the front side 1, and then faces into the cavity drop 10 -3 Chlorobenzene solution of M, the solution will immerse the FTO conductive glass sample, a layer of 0.2mm thick liquid layer is formed on one side of the titanium dioxide film, cover the upper cover B on ...

Embodiment 3

[0036] refer to Figure 1 to Figure 8 , this embodiment provides a method for testing the photochemical reaction at the solid-liquid interface with a cuvette, the cuvette includes a body A and an upper cover B, and the inner edge of the cuvette body A is a sloped inner edge , the front side 1 is made of colorless transparent glass, the bottom surface 2 and the back side 5 are made of frosted glass, and the remaining surfaces are made of colorless transparent glass. The cavity volume in the cuvette is a×b×c=30mm×0.5mm×30mm. Place a PEN flexible substrate with a thickness of 0.1mm (length×width=25mm×25mm) deposited with a yellow translucent bismuth vanadate film in the cavity of the cuvette body A, with the yellow translucent bismuth vanadate film facing the front side 1 , and then drop 10 into the cavity -3 Chlorobenzene solution of M, the solution will immerse the PEN flexible substrate sample, a layer of 0.4mm thick liquid layer is formed on one side of the bismuth vanadate...

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Abstract

The invention belongs to the field of spectrum testing in optical experiments, and discloses a method for testing photochemical reactions at solid-liquid interfaces by using a cuvette. The specific steps of the method are as follows: the flake solid sample is placed in the cavity of the cuvette body A, and the surface to be measured faces the front of the cuvette; the liquid sample is dripped into the cavity, and the liquid sample will infiltrate the flake solid sample. The test surface of the flake solid sample is covered with a liquid layer with a thickness not greater than 1mm; put the upper cover B on the cuvette body A. In the present invention, flake solid samples and liquid samples are simultaneously contained in this cuvette with thin-layer structure characteristics, and it is more convenient and quick to directly test the characteristic spectrum of the transient species produced by the photochemical reaction at the solid-liquid interface, and directly infer that the solid Photochemical reaction processes and mechanisms at liquid interfaces.

Description

technical field [0001] The invention relates to the technical field of spectrum measurement in optical experiments, in particular to a method for testing photochemical reactions at solid-liquid interfaces with a cuvette. Background technique [0002] As an accessory of spectral analysis instruments, cuvettes are widely used in spectrophotometers, laser flash photolysis spectrometers, blood line protein analyzers, particle size analyzers and other spectral analysis instruments. Up to now, the standard, micro, semi-micro or other cuvettes on the market are used to contain liquid samples (transparent solutions, suspensions, emulsions, etc.) or powder samples to study their spectral properties , Quantitative and qualitative analysis of substances. [0003] For the photochemical reaction process and mechanism of the solid-liquid (referred to as solid-liquid) interface, most of them are indirectly speculated by monitoring / detecting the concentration changes of reactants / reaction ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/55G01N21/03
Inventor 姜晓全燮陈景文
Owner DALIAN UNIV OF TECH