二氧化钛光催化与环境(英文)课件.ppt

1、CompanyLOGOApplication of TiO2 photocatalytic degradationProfessor: Reporter:Course：The Science and Design of Engineering MaterialsApplication of TiO2 photocatalytic degradationInorganic compounds 1Organic compounds2White Pollution Control 3Sterilization, disinfection, air purification4Application o

2、f TiO2 photocatalytic degradationvInorganic 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 class, p

3、latinum, Rhodium class, silver class, acid and so on.Application of TiO2 photocatalytic degradationvOrganic compounds: For example: Sewage herbicides, pesticides, dyes, surfactants, alkanes, cycloalkanes, alcohols, carboxylic acids, surfactants, odor substances end so on.Application of TiO2 photocat

4、alytic degradationWhite Pollution Control 050100150200250300051015202530 Weightloss (%)Illumination time / h pure PS fi l m PS-Ti O2(1wt % ) fi l m PS-G-Ti O2(0. 4wt % ) fi l m PS-G-Ti O2(1wt % ) fi l m Weight loss curve of pure PS, PS-TiO2 and PS-G-TiO2 composite films under UV illumination in air.

5、 05010015020025030005101520 weight loss/%illumination PS-G-TiO2 pure PSThe degradation of PS film composite under Sunlight Application of TiO2 photocatalytic degradationThe polymer that can be Photocatalytic degradation: PS-TiO2, PVC-TiO2, PP-TiO2Application of TiO2 photocatalytic degradationantimic

6、robial agentAntibacterial ceramicsKilling of tumor cellsHandling NOx, SO2 and other harmful gasesSterilization, disinfection, air purification Other applications of TiO2TiO2Other applicationsAir PurifierPaintCosmeticsPlasticNano-ceramicOther applications of TiO2Photocatalyst storage bagsGeneral stor

7、age bagsOther applications of TiO2其用于化妆品，有晒不黑的美誉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。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。 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，可使其在大气中有良好的耐候性，而被广泛用于制备高档汽车面漆和各种外用漆，用金红石晶型的纳米钛白制备的面漆能使被涂物体表面产生随角易变效应，而呈现出绚丽多彩的色调。CompanyLOGO