To characterize the dispersion performance of tungsten oxide dispersion, the following methods can be used for evaluation:
Particle Size Analysis
Use equipment such as particle size analyzers or dynamic light scattering (DLS) to measure the particle size distribution of tungsten oxide particles in the dispersion. The particle size distribution in the liquid with good dispersion performance is narrow and uniform.
Stability Test
The stability of the dispersion was evaluated by observing the settling behavior of the dispersion. The dispersion can be placed under static conditions to observe the sedimentation rate and extent of the particles. The particles in the liquid with good dispersion performance settle slowly and uniformly.
Turbidity Measurement
The turbidity of the dispersion is measured using a nephelometer or a UV-Vis spectrophotometer. Liquids with good dispersibility have lower turbidity, indicating that the particles are better dispersed in the liquid phase.
Zeta Potential Measurement
The size and distribution of the surface charges of the particles are measured by a Zeta potential analyzer to evaluate the stability of the dispersion. Higher zeta potential values generally indicate better dispersion performance.
Microscopic Observation
Use a microscope to observe the morphology and distribution of particles in the dispersion. The particles in the liquid with good dispersion performance should be uniformly dispersed without obvious aggregation or deposition.
In addition to the above characterization methods, other specific performance tests, such as the photocatalytic activity and electrochemical performance of the dispersion, can also be carried out according to specific needs. By comprehensively using the above characterization methods, the dispersion performance of tungsten oxide dispersion can be comprehensively evaluated, so as to optimize the dispersion conditions and improve the dispersion system.
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