| 谢宝庚,黄遵红,易绣光,钟路平.LaVO4/TiO2在分解甲基橙中的光催化性能研究[J].井冈山大学自然版,2022,43(6):27-32 |
| LaVO4/TiO2在分解甲基橙中的光催化性能研究 |
| PHOTOCATALYTIC PERFORMANCE OF LaVO4/TiO2 IN THE DECOMPOSITION OF METHYL ORANGE |
| 投稿时间：2022-05-18 修订日期：2022-06-22 |
| DOI：10.3969/j.issn.1674-8085.2022.06.005 |
| 中文关键词: 光催化 TiO2 钒酸镧 掺杂 甲基橙 |
| 英文关键词: photocatalysis TiO2 lanthanum vanadate doped methyl orange |
| 基金项目:国家自然科学基金项目(22168018);井冈山大学博士科研启动项目(JZB1813) |
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| 中文摘要: |
| 光催化剂TiO2在污水有机物降解中有着巨大优势，但由于对光的利用率过低，需要在TiO2的基础上进行掺杂来改善其光催化性能。本研究利用稀土镧元素对TiO2进行了掺杂分别制备了LaVO4/TiO2和La(NO3)3/TiO2复合光催化剂，并将它们应用于甲基橙的光催化降解反应，证实了LaVO4对TiO2的光催化效果有较明显的增强作用。另外还研究了不同pH条件制备和不同掺杂比例的LaVO4/TiO2光催化效果，pH在10.56左右制备出的LaVO4和掺杂比例为5%的LaVO4制得的LaVO4/TiO2复合光催化剂效果较好。 |
| 英文摘要: |
| Photocatalyst TiO2 has great advantages in the water pollution control and degradation of organic matter in sewage, but due to the low utilization rate of light, it is necessary to dope on the basis of TiO2 to improve its photocatalytic performance. In this paper, LaVO4/TiO2 and La(NO3)3/TiO2 composite photocatalysts were prepared by doping TiO2 with rare earth lanthanum, respectively, and they were applied to the photocatalytic degradation of methyl orange, confirming that the photocatalytic effect of LaVO4 on TiO2 was obviously enhanced. In addition, the photocatalytic effects of LaVO4/TiO2 prepared under different pH conditions and different doping ratios were also studied, LaVO4 prepared at pH around 10.56 and LaVO4/TiO2 composite photocatalyst prepared by doping ratio of 5% LaVO4 had better effects. |
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