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以仲钼酸铵为钼源,硝酸为沉淀剂,在强酸性反应体系通过水热法合成了MoO3纳米带。利用XRD、SEM、TEM和SAED对试样进行分析,结果表明:在水热法体系中合成MoO3纳米带时,随着pH值的增加和反应温度的升高,它们都有利于合成MoO3纳米带。在pH值为3、反应温度为240℃和反应时间96h下合成径向小于100nm的晶体MoO3纳米带,此MoO3纳米带的径向分布较不均匀。对不同条件下水热法合成的MoO3进行紫外可见光的吸收光谱分析可得,随着pH值的增加和反应温度的升高,获得的MoO3的光吸收能力是逐渐增加的。特别是MoO3纳米带具有良好的光吸收能力。
Using ammonium paramolybdate as molybdenum source and nitric acid as precipitating agent, MoO3 nanobelts were synthesized by hydrothermal method in a strong acidic reaction system. The results of XRD, SEM, TEM and SAED show that the MoO3 nanoribbons synthesized by the hydrothermal method are favorable for the synthesis of MoO3 nanobelts with the increase of pH and reaction temperature . The crystal structure of MoO3 nanoribbons less than 100nm in diameter was synthesized at pH 3, reaction temperature 240 ℃ and reaction time 96h. The radial distribution of MoO3 nanobelts was not uniform. Under different conditions hydrothermal synthesis of MoO3 UV-visible absorption spectrum analysis obtained, with the increase of pH and reaction temperature, the obtained light absorption capacity of MoO3 is gradually increased. In particular, MoO3 nanoribbons have good light absorption.