暴露高能晶面锐钛矿型Ti0_2研究进展-论文.pdf

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1、化工进展·1320·CHEMICALINDUSTRYANDENGINEERINGPROGRESS2013年第32卷第6期暴露高能晶面锐钛矿型TiO2研究进展陈志鸿，方晓明，张正国(华南理工大学化学与化工学院传热强化与过程节能教育部重点实验室，广东广州510640)摘要：在总结TiO2晶体的形貌结构理论预测研究的基础上，全面且深入地评述了不同形貌的暴露高能晶面锐钛矿相TiO2材料的合成方法及其调控机制。在合成出微米级单晶的基础上，暴露高能晶面的锐钛矿型TiO2纳米晶以及由基本纳米结构单元构成的三维纳米结构聚集体被陆续被

2、制备出来。此外，本文还介绍了暴露高能晶面锐钛矿型TiO2材料的掺杂改性研究，阐述了新合成出的暴露高能晶面锐钛矿型TiO2材料在光催化降解污染物和分解水、太阳电池以及锂离子电池等领域的应用性能。最后，指出了暴露高能晶面TiO2在制备和应用研究上存在的不足和今后的发展方向。关键词：锐钛矿TiO2；高能晶面；形貌理论预测；制备策略；掺杂中图分类号：O614．411文献标志码：A文章编号：1000—6613(2013)06—1320—11DoI：10．3969／j．issn．1000-6613．2013．06．020Rese

3、archprogressinhighenergyfacetsdominatedanataseTiO2CHENZhihong，FANGXiaoming，ZHANGZhengguo(KeyLabofEnhancedHeatTransferandEnergyConservation，MinistryofEducation，SchoolofChemistryandChemicalEngineering，SourthChinaUniversityofTechnology，Guangzhou510640，Guangdong，Ch

4、ina)Abstract：TheoreticalpredictionsonmorphologiesofTiO2crystalsaresummarized，andthesynthesisprocessesandrelatedcontrolmechanismsofthehighenergyfacetsdominatedanataseTiO2crystalswithdifferentmorphologiesaresystematicallyreviewed．BesidestheanataseTiO2crystalswith

5、micro—scalesizes，thehighenergyfacetsdominatedanataseTiO2nanocrystalsandthenanostructurescomposedofnanoscaleunitsaresynthesizedbycontrollingthepreparingprocessesaswellasadjustingTiresourcesandstructure—directingagents．Researchesondopinghighenergyfacetsdominateda

6、nataseTiO2withdifferentelementstoimprovetheiropticalabsorptionpropertiesandphotocatalysisactivitiesarealsodescribedinthispaper~Moreover，theperformancesofthehighenergyfacetsdominatedanataseTiO2materialsintheapplicationfields，includingphotocatalyticdegradationofp

7、ollutants，andwatersplittingtoproducehydroten，solarcells，andLi—ionbatteries，areintroduced．ItisshownthatthehighenergyfacetsdominatedanataseTiO2materialsexhibitsuperioractivitiescomparedwithtraditionalTi02materials．Theproblemsrelatedtotheresearchonthesynthesisanda

8、pplicationsofhighenergyfacetsdominatedanataseTiO2andthefuturedevelopmentarepresented．Keywords：anataseTiO2；highenergyfacets；theoreticpredictionsofthemorphology；syntheticstrat