I-辅助构建具有优异吸附与光催化性能的类红细胞状Bi_(2)WO_(6)

I Assisted Synthesis Erythrocyte-like Bi_(2)WO_(6) with Excellent Adsorption and Photocatalytic Activity

通过简单的水热法,在I-辅助的情况下,首次在不使用任何有机封端剂的情况下,获得了均匀的类红细胞状Bi_(2)WO_(6)。为了分析影响Bi_(2)WO_(6)形貌的前提条件,我们尝试改变I-浓度、水热时间和温度,并提出可能的生长机理。I-吸附在Bi_(2)WO_(6)纳米片的表面,以防止纳米片过度积聚并引导它们形成类红细胞的结构。独特的层状结构一方面增加了比表面积并提供了更多的反应位点,另一方面还提高了表面酸度并提高了吸附能力。

Uniform erythrocyte-like Bi_(2) WO_(6) was obtained by means of I-assisted tactic without utilizing any organic capping reagents in the convenient hydrothermal process for the first time.In order to analyze the preconditions which affect the morphology of Bi_(2) WO_(6),we tried to change the I-concentration,hydrothermal time and temperature,then put forward a possible growth mechanism.I-absorb to the surface of Bi_(2) WO_(6) nanoplates to prevent excessive accumulation of nanoplates and guide them to form an erythrocyte-like structure.The unique layered structure,on the one hand,increases the specific surface area and provides more reaction sites,on the other hand,it also enhances surface acidity and heightens the adsorption capacity.