Synthesis and photocatalytic properties of ZnWO4 nanocrystals via a fast microwave-assisted method.

Synthesis and photocatalytic properties of ZnWO4 nanocrystals via a fast microwave-assisted method.
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DOI:
10.1155/2013/458106
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发表时间:
2013
影响因子:
--
通讯作者:
Li T
Li T
中科院分区:
其他
文献类型:
--
作者:
Yan J;Shen Y;Li F;Li T

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通过控制反应时间和温度,采用高效、环境友好的微波合成方法成功制备了高结晶度的ZnWO 4纳米粒子。采用X射线粉末衍射(XRD)、透射电镜(TEM)和傅立叶红外光谱(FT-IR)对产物进行了表征。随着反应温度的升高和反应时间的延长,产物的结晶度提高。以罗丹明B(RhB)染料为目标染料,研究了ZnWO 4纳米晶的光催化活性。结果表明,ZnWO 4对罗丹明B有很好的降解效果。紫外光照射6 h后,RhB的降解率达到98.01%。
High crystallinity of ZnWO4 nanoparticles has been successfully synthesized via a highly effective and environmentally friendly microwave route by controlling the reaction time and temperature. The products were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and Fourier infrared spectrum (FT-IR). The crystallinity was enhanced with the increase of the reaction temperature and time. The photocatalytic activities of ZnWO4 nanocrystals were evaluated by testing the photodegradation of rhodamine B (RhB) dye under ultraviolet (UV) light irradiation. The results indicated that as-prepared ZnWO4 was highly effective for the degradation of RhB. The degradation rate of RhB reached 98.01% after 6 h of UV illumination.
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