二氧化鈦光催化與環(huán)境英文課件

1、Application of TiO2 photocatalytic degradationProfessor: Reporter:Course：The Science and Design of Engineering Materials第1頁，共14頁。Application of TiO2 photocatalytic degradationInorganic compounds 1Organic compounds2White Pollution Control 3Sterilization, disinfection, air purification4第2頁，共14頁。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頁，共14頁。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頁，共14頁。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頁，共14頁。Application of TiO2 photocatalytic degradationThe polymer that can be Photoc

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

6、plicationsAir PurifierPaintCosmeticsPlasticNano-ceramic第8頁，共14頁。Other applications of TiO2Photocatalyst storage bagsGeneral storage bags第9頁，共14頁。Other applications of TiO2其用于化妝品，有曬不黑的美譽(yù)第10頁，共14頁。Other applications of TiO2其用于塑料必將帶來塑料使用和降解的全新概念，添加了納米鈦白粉的塑料降解快，在塑料制品中添加1%的銳鈦晶型的納米二氧化鈦可使塑料在太陽光下的自然降解速率提高80%以上，而用納米鈦白制成的薄膜涂在塑料的表面，又能大大延長塑料在太陽光下的使用壽命。第11頁，共14頁。Other applications of TiO2運(yùn)用納米鈦白可以在低溫、低壓條件下生產(chǎn)質(zhì)地致密且具有顯著超塑性的納米陶瓷，這種陶瓷克服了傳統(tǒng)陶瓷材料質(zhì)脆、韌性差的缺點(diǎn)，使陶瓷具有象金屬一樣的柔韌性和可加工性，如納米陶瓷CaF2和TiO2在室溫下具有優(yōu)良的韌性，在180經(jīng)受彎曲而不產(chǎn)生裂紋。 第12頁，共14頁。Other applications of TiO2金紅石晶型的納米鈦白由于其晶胞為正四面體，原子之間的結(jié)合較為緊密，其光活性較低，采用特殊的包膜技術(shù)在其表面包覆一層無機(jī)物，可使