Facile Microwave Synthesis of 3D Flowerlike BiOBr Nanostructures and Their Excellent CrVI Removal Capacity
Facile Microwave Synthesis of 3D Flowerlike BiOBr Nanostructures and Their Excellent CrVI Removal Capacity
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DOI：
10.1002/ejic.201101427
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发表时间：
2012-05
影响因子：
2.3
通讯作者：
Guangfang Li;F. Qin;Hao Yang;Zhong Lu;Hongzhe Sun;Rong Chen
中科院分区：
文献类型：
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作者：
Guangfang Li;F. Qin;Hao Yang;Zhong Lu;Hongzhe Sun;Rong Chen
研究了一种简便、快速的微波辐照方法，通过自组装工艺合成了均匀、清晰的三维花朵状生物硅纳米结构。十六烷基三甲基溴化铵（CTAB）作为溴源和软模板，在三维花状BiOBr纳米结构的形成中起着关键作用。通过改变CTAB的浓度，可以得到不同的花状BiOBr纳米结构。讨论了一种可能的形成过程。所制备的花状BiOBr纳米结构具有较大的表面积，在较宽的pH范围内对CrVI离子具有优异的去除能力和快速的吸附速率。
A facile and fast microwave irradiation method has been developed to synthesize uniform well-defined 3D flowerlike BiOBr nanostructures through a self-assembly process. Cetyltrimethylammonium bromide (CTAB), which acts as both the bromide source and soft template, plays a critical role in the formation of 3D flowerlike BiOBr nanostructures. Different flowerlike BiOBr nanostructures could be obtained by varying the CTAB concentration. A possible formation process is discussed. The as-prepared flowerlike BiOBr nanostructures possessed a large surface area and exhibited an excellent removal capacity and fast adsorption rate for CrVI ions in a wide pH range.