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首页> 外文期刊>RSC Advances >Solvent co-mediated synthesis of ultrathin BiOCl nanosheets with highly efficient visible-light photocatalytic activity
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Solvent co-mediated synthesis of ultrathin BiOCl nanosheets with highly efficient visible-light photocatalytic activity

机译：溶剂共同介导的具有高效可见光光催化活性的超薄BiOCl纳米片的合成

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A series of bismuth oxychloride (BiOCl) nanostructures were prepared via a facile solvothermal method. Well-crystallized BiOCl nanosheets were successfully obtained by controlling the ratio of different solvents. With an optimal volume ratio of solvents, sodium chloride (NaCl) and cetyltrimethylammonium chloride (CTAC) were chosen to provide the chloride sources, separately. Compared with NaCl, besides acting as one kind of chloride source, it was found that CTAC could play a significant role in controlling the square-like structure of BiOCl. In addition, the obtained ultrathin square-like BiOCl nanosheets with 3–7 nm thickness exhibited high activity for rhodamine B (RhB) photosensitization degradation under visible-light irradiation. The BiOCl nanosheets synthesized from this study had large surface areas from 20 m2 g?1 to 35 m2 g?1, which are favorable for providing more active sites for dye adsorption and degradation. The possible mechanisms of crystal growth and degradation for RhB are discussed.
机译：通过一种简便的溶剂热法 制备了一系列的三氯氧化铋（BiOCl）纳米结构。通过控制不同溶剂的比例，成功获得了结晶良好的BiOCl纳米片。在溶剂的最佳体积比下，分别选择氯化钠（NaCl）和十六烷基三甲基氯化铵（CTAC）来提供氯化物源。与NaCl相比，CTAC除了作为一种氯化物来源外，还发现其在控制BiOCl的正方形结构中起着重要作用。此外，获得的具有3-7 nm厚度的超薄方形BiOCl纳米片对可见光照射下的若丹明B（RhB）光敏降解表现出高活性。这项研究合成的BiOCl纳米片的表面积从20 m 2 g ？1 到35 m < small> 2 g ？1 ，有利于为染料的吸附和降解提供更多的活性位。讨论了RhB晶体生长和降解的可能机理。

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