可見光催化劑的光電化學性能研究及其在金屬抗腐蝕保護中的應(yīng)用.pdf

1、青島大學碩士學位論文可見光催化劑的光電化學性能研究及其在金屬抗腐蝕保護中的應(yīng)用姓名：高行龍申請學位級別：碩士專業(yè)：材料學指導教師：趙修松20090603AbstractThecorrosionsofmetalsspreadallovertheecnomicsintheworldThecorrosionsnotonlybringtheoccurringsoflotsofproblems，butalsesultinecnomicallosi

2、ngthatishardtOestimateItwasreportedthatthelosingofallovertheworldduetothecorrosionofmetalsaccountsfor3％5％ofGNEInourcountrythedirectlosingofmetalcorrosionexceededto28billionYuan，whileat2004，ithasarrivedto50billionYuan，whi

3、chhasexceededthelosingsummationsofallthenaturaldisastersandaccidentsItwasproposedthatthephotoinducedcharge—transferprocessatthesemiconductorphotocatalystinterfacecanbeappliedtometalcorrosionpreventionTheoreticallythesemi

4、conductorusedisnotconsumedintheprocessofcathodicprotection，thusithasalonglifetimeInthelongrun，itcantakeadvantageoftheinexhaustiblesolarenergyHoweverthephotocatalystsSOfarusedformetalcorrosionpreventionaregenerallysemicon

5、ductorswithwidebandgapTheycanonlyabsorbtheultravioletradiation，whichaccountsforasmallportionofthesolarspectrumSoitisthereforeofgreatsignificantonhowtowidenthespectrumresponserangeofthephotocatalystsandtotakefullyuseofsol

6、arlighttoprotectmetalsInthisdissertation，visible—lightresponsiveBi2M006，MNb206(MNi，Co)photocatalyticmaterialsweresynthesizedviasolidstatereactions，hydrothermalprocess，andcitriccomplexationmethodThecharacterizationsofthes

7、emateralswereconductedbyXraydiffraction(XRD)，scanningelectronmicroscope(SEM)andultravioletvisiblediffusereflectionspectrometer(DRS)techniquesThecrystalstructures，morphologiesandphotophysicalpropertieswereanalyzedanddiscu

8、ssedInaddition，thephotoelectrochemicalconversionandtheanticorrosionpropertiesforcarbonsteelofthesematerialswereinvestigatedundertheilluminationofvisible1ightFirstbulkBi2M006andBi2M006nanoplatesweresynthesizedusingthesoli

9、dstatemethodandhydrothermalmethod，respectivelyDRSresultsrevealedthatsamplessynthesizedusingthetwomethodsdisplaygoodvisiblelightabsorptionpropertiesTheBi2M006samplewiththenanoplatemorphologyshowedablueshiftcomparedwiththe