探索低温液相法合成掺Fe的Fe∶ ZnO,Fe∶ Zn摩尔比为0.01～0.03,通过调整氢氧化钠的量来控制氧化锌的微观形貌,利用X射线衍射(XRD)、扫描电子显微镜(SEM)、X射线能谱仪(EDS)、紫外-可见光谱(UV-vis)、荧光光谱(PL)对所合成的材料进行表征,采用紫外照射测试样品对甲基橙的光催化降解率.结果表明:在80℃水溶液环境下低温合成及随后干燥,成功制备出了掺杂不同Fe含量的Fe∶ ZnO纳米片,所获得的样品均为纤锌矿结构,结晶度高.随着Fe掺杂量的增加,样品的紫外-可见吸收光谱红移,在可见光区吸收增大,带隙减小;适量的Fe掺杂可以降低样品光生电子与空穴的复合率,提高样品光催化性能.掺杂Fe量为1.5％的Fe∶ ZnO的样品光催化降解甲基橙的效率最高,紫外光照反应5h后对甲基橙的光催化降解率相对于纯的ZnO提高了43.8％.
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