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Synthesis and spectroscopic characterization of nanostructured anatase titania: A photocatalyst

机译:纳米结构锐钛矿型二氧化钛的合成及光谱表征:光催化剂

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Nanocrystalline TiO_2 was synthesized by the sol-gel process by controlling the crystallite size through calcination. The resulting nanocrystals were characterized using XRD, FT-Raman, SEM/EDX, DSC/TGA and UV-Vis spectroscopic techniques. XRD patterns confirmed the presence of only pure 100 percent anatase phase TiO_2- The surface morphology of the nanotitania was evaluated with Scanning Electron Microscopy. The purity of the sol-gel-derived TiO_2 was confirmed through EDX measurements. The band gap of the nanotitania was found to be 3.6 eV from UV-Vis measurements. The pHzpc of the titania sample was measured as 5.90.
机译:通过煅烧控制晶粒尺寸,采用溶胶-凝胶法合成了纳米TiO_2。使用XRD,FT-Raman,SEM / EDX,DSC / TGA和UV-Vis光谱技术对所得纳米晶体进行表征。 XRD图谱证实仅存在纯的100%锐钛矿相TiO 2。用扫描电子显微镜评价纳米二氧化钛的表面形态。通过EDX测量证实了溶胶-凝胶衍生的TiO_2的纯度。从UV-Vis测量发现,纳米二氧化钛的带隙为3.6eV。二氧化钛样品的pHzpc测量为5.90。

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