以硫酸亚锡和十六烷基三甲基溴化铵(CTAB)为主要原料,利用光化学合成技术,在室温下通过低功率紫外光辐照制备了棒状结构的二氧化锡(SnO2)。采用扫描电子显微镜(SEM)、X射线衍射仪(XRD)等手段对产物的微观形貌和组成进行表征分析,探讨了硫酸亚锡和CTAB用量变化对产物形貌的影响;利用亚基蓝为目标降解物对棒状SnO2的光催化性活性进行了分析。结果表明:当使用适量的CTAB时,产物为棒状结构;棒状SnO2能在紫外光照下光催化降解亚甲基蓝。
Rod-like SnO2 was prepared by a room temperature photochemical route with the aid of hexadecyl trimethyl ammonium bromide (CTAB).The as-synthesized samples were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD).The effect of the loadings of CTAB and SnSO4 in the precursor solution was discussed.Results shown that rod-like SnO2 can be formed with appropriate amount CTAB and SnSO4.The prepared rod-like SnO2 can be used as an effective photocatalyst for degrading methylene blue.
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