In recent years, with the deep research on semiconductor heterojunction and Z-type mechanism, in order to solve the problem of carbon nitride, scientists usually use other semiconductor materials to form a heterojunction with carbon nitride, for example: carbon nitride / trioxide The tungsten binary heterojunction can expand the spectral range of light absorption by constructing a hybrid system, suppress the recombination of photoelectrons and holes, and obtain higher redox performance.

With the sharp rise in oil prices and the depletion of mineral resources, solar energy has attracted more and more attention due to its inexhaustible, unrestricted geographical and clean and safe advantages. Solar cells based on photovoltaic effect to convert solar energy into electricity are one of the main ways to utilize solar energy.

Ultra-thin diamond saw blade refers to the diamond saw blade with a thickness of less than 1.0 mm and high precision. Its cutting tool slot is narrow, which is beneficial to saving valuable materials in the cutting process. It is widely used in cutting silicon, silicon carbide and other photoelectric materials.

In recent years, semiconductor photocatalysis has become one of the research hotspots in the field of environment. A large number of studies have shown that almost all organic pollutants can be effectively photocatalytically degraded, decolorized and mineralized into inorganic small molecular substances, thereby eliminating environmental pollution and hazards.

China's tungsten reserves rank first in the world, two-thirds of which are scheelite. However, scheelite is often distributed in fine grains, the grade of raw ore is low, and it often coexists with calcareous gangue minerals with better floatability. Therefore, the separation of scheelite and calcareous gangue minerals has always been a difficult problem in the mineral processing industry.

As a semiconductor material (with a band gap of 2.4 to 2.8 eV), tungsten oxide has an extremely wide range of applications in photoelectrochemistry.  Among them, purple tungsten oxide (W18O49) has attracted special attention from researchers because of its unique properties and structure.  

Zinc tungstate has high photocatalytic activity and excellent single crystal scintillation properties; thus, it is one of the most promising photocatalysts and high-energy physical scintillation materials. It possesses a high potential to applicate in photocatalytic synthesis and complex ultra-micro device preparation.

Tungsten slab is the precursor form of tungsten plate. Tungsten plate is mainly used to make temperature standard light source, tungsten evaporation boat, electron tube shed, heat shield, high temperature furnace component, X-ray tube tungsten target and so on. Satisfactory results have been obtained in these fields. With the continuous development of science and technology, the application of tungsten plate has been expanding, especially in nuclear energy, medical devices and other fields.

Because of the change of life and work form, modern people spend more and more time in indoor environment. Almost 90% of the time is spent indoors. As a result of poor indoor air quality, a large number of "sick buildings" and the number of people suffering from "building disease syndrome" are increasing.

Cadmium tungstate (CdWO₄) single crystal is subordinate to wolframite structure (monoclinic system), and its melting point is 1289 ℃. It is a very important scintillator material with excellent performance, high luminescence efficiency and energy resolution. It can emit light blue to yellow spectra under the action of ultraviolet light. It has been widely used in light emitting diodes and super large screen displays.