Continuous microwave flow synthesis and characterization of nanosized tin oxide
Continuous microwave flow synthesis and characterization of nanosized tin oxide
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DOI：
10.1016/j.matlet.2015.07.088
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发表时间：
2015-12-01
影响因子：
3
通讯作者：
Hussain, Rafaqat
中科院分区：
文献类型：
--
作者：
Akram, Muhammad;Alshemary, Ammar Z.;Hussain, Rafaqat
本文报道了微波功率对连续微波流动合成(CMFS)法制备的纳米晶SnO2的物理化学和光催化性能的影响。用透射电子显微镜、X射线衍射仪、傅立叶变换红外光谱、比表面积、紫外可见光谱和荧光光谱对所制得的纳米粒子进行了表征。透射电子显微镜分析表明，SnO2纳米颗粒为团聚球体。随着微波功率的增加，能带红移(E-g)，光致发光(PL)峰强度降低。光催化研究表明，所合成的SnO2纳米粒子对亚甲基蓝(MB)染料有较好的降解效果。E-g降低的SnO2纳米粒子在太阳能电池窗口、光电子器件、紫外光探测器和气敏等领域具有潜在的应用前景。(C)2015爱思唯尔B.V.保留所有权利。
We report here the effect of microwave power on the physicochemical and photocatalytic properties of nano-crystalline tin oxide (SnO2) synthesized by using a continuous microwave flow synthesis (CMFS) process. The obtained nanoparticles (Nps) were characterized by using TEM, XRD, FTIR, BET, UV-vis and PL spectra. TEM characterizations revealed that the SnO2 Nps were agglomerated spheroids. A red shift in energy bandgap (E-g) and a reduction in the photoluminescence (PL) peak intensity were observed on increasing the microwave power. Photocatalytic study confirmed that the synthesized SnO2 Nps were efficient in degrading methylene blue (MB) dye. SnO2 NPs with decreased E-g have potential to be used in solar cell windows, opto-electronic (UV) devices, UV photo-detector and gas sensing applications. (C) 2015 Elsevier B.V. All rights reserved.