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Synthesis and Characterization of Novel N-doped TiO2 Photocatalyst with Visible Light Active
Feng Peng*,Yi Liu,Hong-juan Wang,Hao Yu,Jian Yang
Author NameAffiliationE-mail
Feng Peng* School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China cefpeng@scut.edu.cn 
Yi Liu School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China cefpeng@scut.edu.cn 
Hong-juan Wang School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China cefpeng@scut.edu.cn 
Hao Yu School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China cefpeng@scut.edu.cn 
Jian Yang School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China cefpeng@scut.edu.cn 
Abstract:
A novel N-doped TiO2 (N1-N2-TiO2) with substitutional and interstitial N impurities simul-taneously was successfully synthesized.The catalyst was characterized by X-ray diffraction,X-ray photoelectron spectroscopy, diffuse reflectance spectroscopy, photoluminescence, and electron paramagnetic resonance. The results demonstrated that the nitrogen was substi-tuted for the lattice oxygen atoms, and was also interstitially doped into the TiO2 lattice.The photocatalytic tests indicated that the N1-N2-TiO2 showed the highest photocatalytic activities of all the N-doped TiO2 under visible light, attributing to the synergetic effect of substitutional and interstitial nitrogen of N-doped TiO2.
Key words:  Nitrogen doped titania, Photocatalysis, X-ray photoelectron spectroscopy, Substitutional nitrogen, Interstitial nitrogen
FundProject:
具有可见光活性的新型氮掺杂二氧化钛光催化剂的合成
彭峰*,刘义,王红娟,余皓,杨剑
摘要:
设计合成了一种同时具有取代型与空隙型的氮掺杂二氧化钛,并采用X射线衍射、X光电能谱、漫反射光谱、光致发光谱、电子顺磁共振进行了表征.结果表明新型氮掺杂二氧化钛中氮不仅取代晶格氧原子存在取代型氮,而且与氧配位在二氧化钛晶格中形成空隙型氮.这种新型氮掺杂二氧化钛比取代型和空隙型氮掺杂二氧化钛具有更高的可见光光催化活性,且两种氮掺杂形式具有协同效应.
关键词:  氮掺杂二氧化钛,光催化,取代型氮,间隙型氮
DOI:10.1088/1674-0068/23/04/437-441
分类号: