国产午夜一区二区在线观看m,婷婷婷五月天成人网,日韩欧美岛交视频,国产精品无码一区二区三区免费n

納米二氧化鈦的特殊功能?

2022-03-02 16:23

納米二氧化鈦作為一種新型光催化劑、抗紫外線劑、光電效應劑等,以其神奇的功能,將在抗菌防霉、排氣凈化、脫臭、水處理、防污、耐候抗老化、汽車面漆等優(yōu)先域顯示廣闊的應用前景。

隨著其產(chǎn)品工業(yè)化生產(chǎn)和功能性應用發(fā)展的日趨成熟,它在環(huán)境、信息、材料、能源、醫(yī)療與衛(wèi)生等優(yōu)先域的技術(shù)革命中將起到不可低估的作用。

由于納米二氧化鈦電子結(jié)構(gòu)所具有的特點,使其受光時生成化學活潑性很強的超氧化物陰離子自由基和氫氧自由基,攻擊有機物,達到降解有機污染物的作用。

當遇到細菌時,直接攻擊細菌的細胞,致使細菌細胞內(nèi)的有機物降解,以此殺滅細菌,并使之分解。納米二氧化鈦不僅能影響細菌繁殖力,而且能破壞細菌的細胞膜結(jié)構(gòu),達到徹底降解細菌,防止內(nèi)毒素引起的二次污染,納米二氧化鈦屬于非溶出型材料,在降解有機污染物和殺滅菌的同時,自身不分解、不溶出,光催化作用持久,并具有持久的殺菌、降解污染物效果。

作為納米材料,除了滿足納米尺寸的要求以外,還必須具備功能性和應用性。達到納米尺度分布的納米二氧化鈦能充分地體現(xiàn)量子尺寸效應、表面效應、體積效應和宏觀量子隧道效應,因此具有納米粒子一系列特殊的應用特性,如抗菌、空氣凈化、污水凈化等。

As a new type of photocatalyst, UV resistant agent and photoelectric effect agent, nano titanium dioxide will display broad application prospects in the fields of antibacterial, mildew proof, exhaust purification, deodorization, water treatment, antifouling, weathering, anti-aging, automobile topcoat and other fields.

With the development of industrial production and functional application of its products, it will play an important role in the technological revolution in the fields of environment, information, materials, energy, medical treatment and health.

Due to the characteristics of the electronic structure of nano titanium dioxide, it generates superoxide anion free radicals and oxyhydrogen free radicals with strong chemical activity when exposed to light to attack organic substances and degrade organic pollutants.

When bacteria are encountered, they directly attack the bacterial cells, causing the degradation of organic matter in the bacterial cells, so as to kill the bacteria and decompose them. Nano titanium dioxide can not only affect the fecundity of bacteria, but also destroy the cell membrane structure of bacteria, so as to completely degrade bacteria and prevent secondary pollution caused by endotoxin. Nano titanium dioxide is a non dissolution material. While degrading organic pollutants and killing and sterilizing, it does not decompose and dissolve itself, has a lasting photocatalytic effect, and has lasting sterilization Degradation of pollutants.

As a nano material, in addition to meeting the requirements of nano size, it must also have functionality and application. Nano titanium dioxide with nano scale distribution can fully reflect quantum size effect, surface effect, volume effect and macro quantum tunnel effect. Therefore, it has a series of special application characteristics of nanoparticles, such as antibacterial, air purification, sewage purification and so on.

f7202007151819085572.JPG