稀土钕掺杂氧化锌纳米材料的制备及对罗丹明B的降解研究

doi:10.11962/1006-4990.2019-0139

摘要/Abstract

摘要：

采用直接沉淀法对纳米氧化锌做稀土掺杂改性,制备了钕掺杂纳米氧化锌,并采用X射线衍射、扫描电子显微镜、固体荧光光谱等测试手段对产品做了分析与表征,考察掺杂对氧化锌的物相、晶体结构、荧光性质的影响,将其应用于废水中罗丹明B的光催化降解。结果表明：钕掺杂可大幅度提高纳米氧化锌在汞灯照射下的光催化性能。随着掺杂量增加,掺杂氧化锌纳米材料的光催化降解性能逐渐升高,掺加7%（物质的量分数）钕的纳米氧化锌对罗丹明B的去除率可达89.62%。

关键词: 氧化锌, 光催化, 掺杂, 罗丹明B, 稀土钕

Abstract:

The antimony-doped nano-zinc oxide was prepared after the nano-zinc oxide was doped with rare earth by direct precipitation method.The products were analyzed and characterized by X-ray diffraction,scanning electron microscopy and solid-state fluorescence spectroscopy.The effect of doping on the phase,crystal structure and fluorescence properties of zinc oxide was investigated,which was applied to the photocatalytic degradation of rhodamine B in wastewater.The results showed that Nd doping could greatly improve the photocatalytic performance of nano-ZnO under mercury lamp irradiation.With the increase of doping amount,the photocatalytic degradation performance of doped ZnO nanomaterials increased gradually.The removal rate of Rhodamine B by 7%（amount-of substance fraction） Nd-doped nano-ZnO was 89.62%.

Key words: ZnO, photocatalytic, doping, Rhodamine B, rare earth Nd

中图分类号:

TQ132.41

黄礼丽,赵深茂,邓跃全. 稀土钕掺杂氧化锌纳米材料的制备及对罗丹明B的降解研究[J]. 无机盐工业, 2019, 51(8): 88-92.

Huang Lili,Zhao Shenmao,Deng Yuequan. Preparation of rare earth Nd-doped ZnO nano-materials and its degradation of Rhodamine B[J]. Inorganic Chemicals Industry, 2019, 51(8): 88-92.

图/表 5

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样品	a/nm	c/nm	V/nm³
ZnO	0.325 070	0.520 874	0.047 67
1%掺杂ZnO	0.324 993	0.520 498	0.047 61
3%掺杂ZnO	0.324 695	0.520 041	0.047 48
5%掺杂ZnO	0.324 994	0.520 605	0.047 62
7%掺杂ZnO	0.324 871	0.520 267	0.047 55

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