摘要
以硝酸锰(Mn(NO_3)_2)为锰源,P25纳米粒子为钛源,采用熔盐法制备掺杂锰的金红石TiO_2光催化剂。使用SEM、TEM、XRD、EDS等手段对其形貌、结构、物相进行表征,并以罗丹明B为目标污染物,通过调节Mn的掺杂量,探索Mn的掺杂量对可见光催化降解罗丹明B的影响。结果表明:Mn/Ti原子比为1/50的样品(10-MnTiO_2)对罗丹明B降解作用最好,该样品为一维线状结构,结晶度高,且直径分布均一,纵横比高达400以上,其有效催化面积最大。
Mn-doped rutile TiO_2 photocatalysts were prepared with molten salt synthesis by using Mn（NO_3）_2 as manganese source and P25 nanoparticles as titanium source.The morphology,structure and phase of photocatalyst were characterized by SEM,TEM,XRD and EDS.Rhodamine B was used as a target pollutant.The effects of various Mn doping concentrations on the photodecomposition of Rhodamine B under visible light irradiation were investigated.The results indicate that when the atomic ratio of Mn/Ti is 1∶50（sample 10-Mn-TiO_2）,the degradation of Rhodamine B is the best;the sample shows one-dimensional linear structure,uniform diameter distribution and high degree of crystallinity;the aspect ratio is as high as 400;the effective catalysis area is the largest.
出处
《浙江理工大学学报（自然科学版）》
2016年第1期35-40,共6页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
国家自然科学基金项目(51372227
51471153)
浙江省自然科学基金项目(LY14E020011)
关键词
熔盐法
Mn-TiO2复合物
可见光催化
molten salt synthesis
Mn-TiO2 compound
visible light photocatalysis
作者简介
崔伟豪（1993-），男，安徽蚌埠人，硕士研究生，主要从事纳米材料方面的研究。
通信作者：王晟，E-mail：wangsheng571@hotmail．com
