CAJ | 학술논문

应用原子力显微镜和x射线粉末法对3d过渡金属离子Cr(Ⅲ)，Fe(Ⅲ)，Mn(Ⅱ)，Co(Ⅱ)，Ni(Ⅱ)，Cu(Ⅱ)和Zn(Ⅱ)掺杂TiO2纳米晶粒(简写为M3d-TiO2)作了表征，并用光电化学方法研究了M3d-TiO2纳米结构多孔膜电极.实验结果表明，M3d-TiO2纳米粒子的颗粒较均匀，粒径约为15 nm，其晶型为锐钛矿和板钛矿的混晶.在所研究的M3d-TiO2中，只有Zn2+-TiO2电极的光电流大于未掺杂的TiO2纳米结构多孔膜电极.3d金属离子的掺杂引起各电极的光电流信号在一定波长范围内出现p-n转型现象.
응용원자력현미경화x사선분말법대3d과도금속리자Cr(Ⅲ)，Fe(Ⅲ)，Mn(Ⅱ)，Co(Ⅱ)，Ni(Ⅱ)，Cu(Ⅱ)화Zn(Ⅱ)참잡TiO2납미정립(간사위M3d-TiO2)작료표정，병용광전화학방법연구료M3d-TiO2납미결구다공막전겁.실험결과표명，M3d-TiO2납미입자적과립교균균，립경약위15 nm，기정형위예태광화판태광적혼정.재소연구적M3d-TiO2중，지유Zn2+-TiO2전겁적광전류대우미참잡적TiO2납미결구다공막전겁.3d금속리자적참잡인기각전겁적광전류신호재일정파장범위내출현p-n전형현상.
The 3d transition metal ions [Cr(Ⅲ), Fe(Ⅲ), Mn (Ⅱ), Co(Ⅱ), Ni(Ⅱ), Cu(Ⅱ), Zn(Ⅱ)]nanocrystalline doped with TiO2(abbr. M3d-TiO2) were characterized by AFM and XRD. The M3d-TiO2 nanostructured film electroede was prepared and investigated with photoelectrochemical techniques. The results show that the size of M~-TiO2 nanocrystalline particles was quite uniform and the radii were about 15 nm. The M3d-TiO2 nanocrystalline particles were a mixture of brookite and anatase crystal forms. Of all the M3D-TiO2 investigated in this paper, however, the photocurrent intensity of Zn2+-TiO2 nanostructured film electode was higher than that of the electrode undoped with TiO2. The phenomenon of p-n type inversion was observed in certain wavelength range, which was caused by 3d transition ions doping.