What are nanomaterials?

Nanomaterials are materials with sizes in the range of 1-100 nanometers.

Its size is comparable to the wavelength of visible light and therefore has many unique properties and characteristics.

Nanomaterials are usually composed of structural units composed of single molecules or atoms. At this scale, the physical and chemical properties of materials are closely related to quantum effects.

Nanomaterials can be divided into three categories according to different forms: 0D nanoparticles, 1D nanowires, and 2D nanosheets.

0D nanoparticles are spherical or cubic particles, such as gold nanoparticles and zinc oxide nanoparticles; 1D nanowires mainly refer to carbon nanotubes and nanowires; 2D nanosheets are planar materials, such as graphene and two-dimensional boride

wait.

The properties of nanomaterials are significantly different among the same materials.

Compared with traditional materials, nanomaterials have higher specific surface area, greater volume energy and better catalytic effect, so they have broad application prospects in many fields.

Nanomaterials have been used in electronics, biomedicine, environmental protection, energy, etc., and more application fields will be discovered and developed in the future.

However, nanomaterials also present some problems and challenges.

Due to the special properties of nanomaterials, their toxicity and uncontrollable self-assembly behavior have also become key issues in the current preparation and application processes.

Therefore, the safety and environmental friendliness of nanomaterials also need to be valued and studied.