Photocatalytic degradation of direct red-23 dye with ZnO nanoparticles.
Photocatalytic degradation of direct red-23 dye with ZnO nanoparticles.
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ZnO 纳米粒子光催化降解直接 red-23 染料。
DOI：
10.1166/jnn.2014.9229
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发表时间：
2014
影响因子：
--
通讯作者：
A. Umar
中科院分区：
文献类型：
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作者：
Girish Kumar;R. Kumar;S. Hwang;A. Umar
本工作报道了一种简单的自蔓延溶液燃烧法，以葡萄糖为燃料的ZnO纳米粒子的简易和大规模的合成和它们作为光催化剂的有效使用直接红-23（DR-23）染料的光催化降解在浸没井型光反应器。采用场发射扫描电子显微镜（FESEM）、X射线衍射（XRD）、红外光谱（FTIR）和紫外-可见光谱（UV-Vis）等分析手段对所制备的ZnO纳米粒子进行了表征。光谱测量详细的表征证实，所制备的ZnO纳米粒子是纯净的，结晶良好，具有六方纤锌矿相。在ZnO纳米颗粒光催化剂存在下，在UV照射下，在110分钟内观察到DR-23几乎完全光降解。研究表明，简单制备的ZnO纳米材料是一种有效的光催化剂，用于光催化降解各种有毒化学品和污染物。
This work reports a facile and large-scale synthesis of ZnO nanoparticles by simple self-propagating solution combustion method using dextrose as fuel and their effective use as a photocatalyst for photocatalytic degradation of Direct Red-23 (DR-23) dye in an immersion well type photo-reactor. The prepared ZnO nanoparticles were characterized by various analytical tools using field emission scanning electron microscopy (FESEM) attached with energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) pattern, Fourier transform infrared (FTIR) spectroscopy and UV-Vis. spectroscopy measurements. The detailed characterizations confirmed that the prepared ZnO nanoparticles are pure, well-crystalline and possessing wurtzite hexagonal phase. Almost complete photo-degradation of the DR-23 was observed in 110 min. under UV irradiation in presence of ZnO nanoparticle photocatalyst. This study reveals that simply prepared ZnO nanomaterials are effective photocatalyst for the photocatalytic degradation of various toxic chemicals and pollutants.