Abstract
With the continuous development of science and technology, people begin to pay attention to environmental protection. At present, there are many fields causing environmental pollution, among which printing and dyeing wastewater has become the most difficult to degrade in our daily life due to the complexity and instability of organic substances in its water. The seriousness of printing and dyeing wastewater pollution has a great impact on our living ecological environment. As a typical material in semiconductors, titanium dioxide has the advantages of low price, strong compatibility, non toxicity, self-cleaning and stable physical and chemical properties. These advantages determine that titanium dioxide has absolute advantages and deeper potential in the field of photocatalysis. There are a variety of types and forms of titanium dioxide, including titanium dioxide film, powder, particle, fiber and so on. The flexible titanium dioxide nanofiber membrane prepared by electrospinning has the characteristics of high specific surface, large pore size and high transmittance. Flexible titanium dioxide nanofiber membrane is more available and recyclable and can avoid secondary pollution as well. Therefore, the preparation and selection of reasonable photocatalytic materials is also a key step in the field of photocatalytic technology.
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