Foreword

Titanium dioxide is a white pigment with stable physical and chemical properties and excellent pigment performance. It has the reputation of the king of white pigments. Its main chemical composition is titanium dioxide, the molecular formula is TiO2, and the molecular weight is 79.9. It is now widely used in plastics, coatings, paper, ink, rubber, cosmetics and other industries, With the increase of research and development and application of titanium dioxide by various enterprises in recent years, its application field continues to extend to functional materials, such as applications in denitrification catalysts, photocatalysts, ultrafine particles, and lithium titanate batteries.

Titanium Dioxide Introduction

The crystal forms of titanium dioxide in titanium dioxide mainly include rutile, anatase and brookite. Because brookite titanium dioxide belongs to the orthorhombic crystal series, its chemical properties are unstable, and it can be converted into rutile titanium dioxide at a high temperature of 650 ° C, so it has little practical value in industry. Compared with anatase titanium dioxide, rutile titanium dioxide has a more stable crystal structure.

Application of XRD in Determination of Rutile Conversion Rate

Both rutile and anatase belong to the tetragonal crystal system, but have different crystal lattices, so the X-ray images are also very different. Since the control of the lattice type and lattice ratio in titanium dioxide has a great influence on the quality of products in downstream application fields such as coatings and plastics, the determination of information such as the crystal form and crystal form ratio of titanium dioxide has practical significance.

Instrumental analysis plays an important role in evaluating the physical and chemical properties of titanium dioxide, such as elemental composition, crystal type, particle size distribution, and surface morphology. X-ray diffractometer is one of the commonly used instruments for phase analysis of substances. Since different substances have different structures, they have different diffraction lines. At present, according to the diffraction lines of the characterized crystal structure, the type of crystal lattice in the substance can be determined; according to the peak intensity of the characterized diffraction peaks, the content of the crystal form of the substance can be analyzed.

Detection case

The experiment uses the FRINGE CLASS benchtop X-ray diffractometer of Suzhou Langsheng Scientific Instrument Co., Ltd. to detect and analyze the titanium dioxide samples of a certain company, collect the diffraction patterns of the samples, and measure the R value of the rutile conversion rate.

1、Sample/sample preparation

2、Test Setting

3、Test Result

4、Display of the test interface

Analysis results of sample: 2304902021

Analysis results of sample: 2304902019

Analysis results of sample: 2304902020

Conclusion

FRINGE CLASS has the characteristics of good repeatability, strong reproducibility, less human factors and high accuracy of analytical test results. It has practical guiding significance in the application of titanium dioxide industry.