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中文摘要：
以BiCl3,SnCl4·5H2O和HCl为原料,用水解法制备了Sn/BiOCl光催化剂,并利用X射线衍射、扫描电子显微镜、X-射线能谱和紫外-可见漫反射光谱对光催化剂进行了分析表征。在氙灯照射下,以甲基橙为目标降解物,对Sn/BiOCl光催化剂的活性进行了考察。结果表明,Sn掺杂提高了BiOCl光催化剂的活性。掺杂后光催化剂与BiOCl均属于四方晶相结构,但是掺杂后光催化剂的衍射峰有向高角度偏移的趋势,外貌为均匀的薄片状结构,Sn/BiOCl光催化剂的吸收带边发生了红移,当Sn掺杂量达到9%（质量分数）时,其带隙能从未掺杂时的3.3eV降低到2.92eV,在1g/L的催化剂用量时,经120min氙灯照射后,可使50mL的10mg/L甲基橙溶液的降解率达到100%。
英文摘要：
The Sn-doped BiOC1 photocatalyst was synthesized by hydrolysis method withBiC13, SnC14 · 5H20 and HC1 as raw materials, and the as-prepared photocatalyst were charater-ized by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, energy dispersive spec-trometry （EDS） and diffuse reflectance spectrometry （DRS）. Under the irradiation of xenonlamp, the photocatalytic properties of Sn-doped BiOC1 photocatalysts were investigated by usingdegradation of MO solution as target decomposition material. The results demonstrate that Sn-doped BiOC1 photocatalyst prepared by hydrolysis method has better photocatalytic activity, un-doped BiOC1 and Sn-doped BiOC1 are square crystalloid, but Sn-doped BiOC1 gives diffractionpeak slightly shifted towards higher angle, and morphology of photocatalyst is of uniform flakestructure, compared with undoped BiOC1, the light absorption of Sn-doped BiOCI apparently ex-tends into visible light region. The photocatalytic activity is the highest, when the suitable pho-tocatalyst concentration is 1 g/L, doping amount of Sn is 9 %, and the degradation rate of methylorange solution （100 mL· 10 mg/L） under xenon lamp irradiation reaches 100% in 120 min.
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