二氧化钛光催化与环境英文课件

1、Application of TiO2 photocatalytic degradationProfessor: Reporter:Course：The Science and Design of Engineering Materials第1页，共14页。Application of TiO2 photocatalytic degradationInorganic compounds 1Organic compounds2White Pollution Control 3Sterilization, disinfection, air purification4第2页，共14页。Applic

2、ation of TiO2 photocatalytic degradationInorganic compounds Many inorganic can be photolysis on the surface of semiconductor. Include: ammonia, azide, chromium type, cyanide, halide, ferrous, manganese type, mercury, nitrate and nitrite, nitric oxide and nitrogen dioxide, oxygen, ozone, palladium cl

3、ass, platinum, Rhodium class, silver class, acid and so on.第3页，共14页。Application of TiO2 photocatalytic degradationOrganic compounds: For example: Sewage herbicides, pesticides, dyes, surfactants, alkanes, cycloalkanes, alcohols, carboxylic acids, surfactants, odor substances end so on.第4页，共14页。Appli

4、cation of TiO2 photocatalytic degradationWhite Pollution Control Weight loss curve of pure PS, PS-TiO2 and PS-G-TiO2 composite films under UV illumination in air. The degradation of PS film composite under Sunlight 第5页，共14页。Application of TiO2 photocatalytic degradationThe polymer that can be Photoc

5、atalytic degradation: PS-TiO2, PVC-TiO2, PP-TiO2第6页，共14页。Application of TiO2 photocatalytic degradationantimicrobial agentAntibacterial ceramicsKilling of tumor cellsHandling NOx, SO2 and other harmful gasesSterilization, disinfection, air purification第7页，共14页。 Other applications of TiO2TiO2Other ap

6、plicationsAir PurifierPaintCosmeticsPlasticNano-ceramic第8页，共14页。Other applications of TiO2Photocatalyst storage bagsGeneral storage bags第9页，共14页。Other applications of TiO2其用于化妆品，有晒不黑的美誉第10页，共14页。Other applications of TiO2其用于塑料必将带来塑料使用和降解的全新概念，添加了纳米钛白粉的塑料降解快，在塑料制品中添加1%的锐钛晶型的纳米二氧化钛可使塑料在太阳光下的自然降解速率提高80%以上，而用纳米钛白制成的薄膜涂在塑料的表面，又能大大延长塑料在太阳光下的使用寿命。第11页，共14页。Other applications of TiO2运用纳米钛白可以在低温、低压条件下生产质地致密且具有显著超塑性的纳米陶瓷，这种陶瓷克服了传统陶瓷材料质脆、韧性差的缺点，使陶瓷具有象金属一样的柔韧性和可加工性，如纳米陶瓷CaF2和TiO2在室温下具有优良的韧性，在180经受弯曲而不产生裂纹。 第12页，共14页。Other applications of TiO2金红石晶型的纳米钛白由于其晶胞为正四面体，原子之间的结合较为紧密，其光活性较低，采用特殊的包膜技术在其表面包覆一层无机物，可使