Tungsten trioxide (WO3) is one of the earlier studied photocatalysts. There are other promising photocatalysts such as titanium dioxide, iron oxide and so on. But what makes tungsten trioxide one of the earliest materials studied in the field of phtocatalysts? This is due to the light stability of tungsten trioxide, a wide range of sources, and it is environmental friendly. It is no wonder that it will be favored by researchers.

At present, one of the difficulties of 3D printing technology is the using of refractory metal for printing, especially metals with high melting points such as tungsten, chromium and bismuth, nor the nanometer powders. This means that it is also difficult to apply 3D printing technology to nanometer tungsten trioxide powder. Over the years, scientists from all over the world have worked on new processes that can be cost-effective and achieve the desired performance requirements.

Tungsten trioxide is an excellent photochromic material that turns blue under ultraviolet light. So, what is photochromism? Photochromism means that compound A can produce product B with different structure and spectral properties through specific chemical formula when subjected to illumination with wavelength λ1, and B can be reversibly generated under the action of light or heat with wavelength λ2.

There are six preparation methods of tungsten trioxide include hydrothermal synthesis method, precipitation method, sol-gel method, microemulsion method, gas-liquid reaction method and template method. Some special forms of tungsten trioxide powder can be prepared by different methods. It is due to the existence of this special structure and morphology that the synthesized tungsten trioxide has some new physicochemical properties.

The super-hydrophobic coating using tungsten trioxide not only has UV resistance (UV or UV), but also has excellent self-cleaning ability, good mechanical properties and stable performance. One of the biggest defects of super-hydrophobic surfaces is poor mechanical properties.

Tungsten trioxide can be applied to the emulsion separation process in water pollution control, mainly to solve problems such as industrial oily wastewater and oil spill.

Nowadays, research on the wettability of tungsten trioxide materials is not deep enough, although thanks to its unique optoelectronic properties, WO3 has been used in many fields such as photochromism, photocatalysis, electrochromism, sensors and information storage. These areas are also well-known applications of WO3, as many people know that tungsten trioxide is a common n-type semiconductor material. However, the lack of research on the wettability of WO3 will undoubtedly greatly limit the application of tungsten trioxide materials in practical industries. Therefore, the combination of tungsten trioxide material and wetting properties will have important theoretical and practical significance in the increasingly mature and application of WO3 preparation methods.

The tungsten trioxide (WO3) has a band gap energy of about 2.5 eV and has potential photocatalytic ability in visible light having a wavelength of less than 500 nm. Therefore, WO3 has potential application prospects in the treatment of organic dye contaminated water.

Different operating conditions are matched with different types of tungsten carbide rock drilling button in different shapes and sizes. When we design and select the tungsten carbide button, the load conditions of the rock drilling bits should be taken into considerations. The design of the parabolic button can be done with its reference taper angle.

Tungsten carbide buttons tip were first applied to cone bits and then to DTH bits. The history of button bit in China starts from the cone bits in large diameter and DTH bits.