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以1 mol/LAlCl3为铝源和1 mol NaOH为沉淀剂,利用水热法在180℃、48 h和pH值为9条件下合成了长度大于300 nm和直径约8 nm的γ-AlOOH纳米棒。水热法合成试样的物相、形貌和光吸收特性分别被X射线衍射仪(XRD)、扫描电子显微镜(TEM)和紫外可见分光光度计(UV-VIS)表征。研究结果表明:水热法所合成试样的物相均为γ-AlOOH。随着反应温度和pH值的增加,它们都有利于合成长径比大的γ-AlOOH纳米棒。对不同条件下水热法合成γ-AlOOH纳米棒进行紫外可见光的吸收光谱(UV-VIS)分析可得,随着反应温度的升高和pH值的增加,获得γ-AlOOH纳米棒的光吸收能力逐渐是增加的。特别是长径比大的γ-AlOOH纳米棒具有良好的光吸收能力。
Γ-AlOOH nanorods with length of more than 300 nm and diameter of about 8 nm were synthesized by hydrothermal method at 180 ℃ for 48 h and pH value of 9 with 1 mol / LAlCl3 as the aluminum source and 1 mol NaOH as the precipitating agent. . The phase, morphology and optical absorption properties of hydrothermally synthesized samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (TEM) and ultraviolet-visible spectrophotometer (UV-VIS). The results show that: the hydrothermal synthesis of the sample phase are γ-AlOOH. With the increase of reaction temperature and pH, they are helpful to synthesize γ-AlOOH nanorods with large aspect ratio. The results of UV-VIS analysis of γ-AlOOH nanorods synthesized by hydrothermal method under different conditions showed that with the increase of reaction temperature and pH, the light absorption ability of γ-AlOOH nanorods was obtained Gradually increase. In particular, γ-AlOOH nanorods with large aspect ratio have good light absorption ability.