摘要
通过低温溶剂热法合成出氯化锑(Sb_2S_3)纳米线。通过XRD、SEM、TEM、SAED等微纳测试技术表征合成的Sb_2S_3样品,显示出合成的样品是单晶正交相的Sb_2S_3纳米线。此外,利用XPS分析技术研究了Sb_2S_3的电子价态,并通过紫外-可见光反射谱来计算Sb_2S_3纳米线的带隙大约为1.55eV。为了开拓Sb_2S_3的应用,研究了Sb_2S_3在可见光照射下催化降解罗丹明B(RhB),证明了Sb_2S_3纳米线具有良好的光催化降解效果。并且基于Sb_2S_3纳米线制作了一个光电器件,在间歇的光照下,该器件表现出了明显的光开关效应,响应时间和恢复时间都很短,低于280ms。这些研究成果表明所合成的Sb_2S_3纳米线在光催化、光电传感等领域具有潜在的应用价值。
Sb2S3 nanowires have been synthesized via a low-temperature solvothermal routine. XRD, SEM, TEM and SAED were employed to characterize the obtained nanocrystals, showing the orthorhomhic phase of the single-crystalline Sb2S3 nanowire. In addition, the electronic valence states of the synthesized product were explored by XPS analysis. The band gap can calculated at about 1.55 eV from UV-visible reflection spectrum. The degradation for RhB under visible light exhibits the Sb2Sa nanowires have excellent photocatalytic activity. Besides, a photoelectric device by using Sb2S3 nanowires was fabricated. Under intermittent irradiation, the nanodevice can deliver an obvious photo-switching effect with a short response and recover time less than 280 ms. These investigations suggest that the prepared Sb2S3 nanowires can be potentially applied in photocatalysis, photoelectric sensing, and others.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2017年第10期10169-10173,共5页
Journal of Functional Materials
关键词
溶剂热合成
Sb2S3纳米线
光降解
光电传感
solvothermal synthesis
Sb2S3 nanowire
photodegraflation
photoelectric sensing
