Preparation and characterization of CdWO4:Cu nanorods with enhanced photocatalytic performance under sunlight irradiation,New Journal of Chemistry

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Preparation and characterization of CdWO4:Cu nanorods with enhanced photocatalytic performance under sunlight irradiation
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2020/01/15 , DOI: 10.1039/c9nj05763c
Kura Narsimha _{1,

2,

3,

4,

5} , M. Shekar Babu _{1,

2,

3,

4,

5} , N. Anuradha _{1,

2,

3,

4,

5} , Swarupa Guda _{1,

2,

3,

4,

5} , B. Kranthi Kumar _{1,

2,

3,

4,

5} , D. Mallesh _{6,

7,

8} , G. Upender _{3,

4,

5,

8,

9} , P. Muralidhar Reddy _{1,

2,

3,

4,

5} , B. Vijaya Kumar _{1,

2,

3,

4,

5}

Affiliation

The objective of this work is to convert an ultraviolet active photocatalyst to a visible active photocatalyst and investigate the effect of copper (Cu²⁺) doping on the morphology and photocatalytic activity of CdWO₄. Efficient visible light driven Cu²⁺ doped CdWO₄ photocatalysts were successfully prepared by a hydrothermal method and characterized by various techniques. The XRD results revealed that CdWO₄ and Cu²⁺ doped CdWO₄ have crystallized in a monoclinic wolframite structure. The SEM images displayed nano rod like morphology and as the Cu²⁺ content is increased irregular structures were observed. The best photocatalytic activity was observed for Cd_0.95Cu_0.05WO₄ in the presence of H₂O₂ under sunlight irradiation and it was found to be 5 times more than that of pristine CdWO₄. The enhanced photocatalytic activity of the Cu²⁺ doped CdWO₄ compositions leads to further improvement of the catalysts for environmental remediation.

中文翻译：

阳光照射下具有增强光催化性能的CdWO4：Cu纳米棒的制备与表征

这项工作的目的是将紫外线活性光催化剂转变为可见光活性光催化剂，并研究铜（Cu ²⁺）掺杂对CdWO ₄的形态和光催化活性的影响。通过水热法成功制备了高效可见光驱动的Cu ²⁺掺杂的CdWO ₄光催化剂，并通过各种技术对其进行了表征。X射线衍射结果表明，CdWO ₄和Cu ²⁺掺杂的CdWO ₄已在单斜晶钨铁矿结构中结晶。SEM图像显示出纳米棒状形态和Cu ²⁺含量增加，观察到不规则结构。在H ₂ O ₂存在下，Cd _0.95 Cu _0.05 WO ₄在阳光照射下表现出最好的光催化活性，是原始CdWO _4的5倍。掺杂Cu ^2+的CdWO ₄组合物的增强的光催化活性导致用于环境修复的催化剂的进一步改进。

更新日期：2020-02-13

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