14326.gc3n4納米光催化劑的改性及其活性提高的機制研究

1、分類號UDC密級j公開舅毋廬夕擎碩士研究生學(xué)位論文gC3N4納米光催化劑的改性及其活性提高的機制研究申請人：學(xué)號：培養(yǎng)單位：學(xué)科專業(yè)：研究方向：指導(dǎo)教師：完成日期：李成名2131155化學(xué)化工與材料學(xué)院物理化學(xué)光電化學(xué)與光催化井立強教授2016年3月黑龍江大學(xué)碩士學(xué)位論文AbstractPhotocatalysisisconsideredasasolutiontocrisisofenvironmentandenergY，converti

2、ngsolarenergyintochemicalenergytobeappliedpracticallyGraphiticcarbonnitride(gC3N4)withuniquelayers，isearth—abundant，easy—to—prepare，metal—freeandhighstability，beingconsideredasapromisingcandidatesemiconductorphotocatalys

3、tNevertheless，thelowerphotocatalysticactivityduringtohighrecombinationHence，howtoenhancedseparationofphotoinducedelectronandhole，improvingphotocatalyticactivityofg—C3N4isasignificantworkModificationsuchasphosphoricsulfur

4、icandhydrofluoricandotherinorganicacidscaptureSthephotoinducedelectrononthesurfacehasmadesomeSuccessBoricacid，however，duringtothetendencytoformaggregation，isnotemployedwidelywhileboratemodificationhasnotbeenreportedThus，

5、thisworkwouldemployboricacidandboratetomodifiedtothesurfaceofg—C3N4，toenhancetheseparationofthephotoproductedchargecarriersandpromotethedegradingandhydrogenproductionactivityThemechanismwouldbestudiedaswellThroughahydrot

6、hermalprocess，theboricacidmodifiedgC3N4ispreparedwithahighphotocatalyticactivityofdegradingtheorganicpollutionThemechanismthataRerthemodificationofboricacidonthesurfacetheamountofadsorbed02iSenhanced，whichcouldcapturepho

7、toinducedelectronsformingO厶，promotingtheseparationofphotoinducedchargecarrierleadingthehigheractivityofdegradingtheorganicpollution，isbasedonthemeasurementsofSS—SPS，TPD，andIVcurvesWiththepresenceofmethylalcoholinthesyste

8、m，modifiedgCaN4byboricacidandborateexhibitenhancedhydrogenproductionBasesonthemeasurementsofSS—SPS，TPD，andIVcurves，itisrevealedthatphotoinducedelectroniscapturedbypositiveioneffectivelyinconsequencereductionreactionofthe