| Ag负载SnO2/TiO2复合光催化剂的合成及其废水处理 |
| |
| 引用本文： | 魏耀旺. Ag负载SnO2/TiO2复合光催化剂的合成及其废水处理[J]. 宝鸡文理学院学报(自然科学版), 2011, 31(3): 36-40. DOI: 61-1290/N.20110902.1539.001 |
| |
| 作者姓名： | 魏耀旺 |
| |
| 作者单位： | 陕西延长石油有限公司榆林炼油厂,陕西榆林,718500 |
| |
| 摘 要： | 目的合成Ag负载SnO2/TiO2复合光催化剂,并对其在废水处理中的应用加以研究。方法以钛酸四丁酯、无水乙醇和四氯化锡为原料,采用光还原法制备载Ag纳米SnO2/TiO2光催化剂,以罗丹明B为模型污染物,借助XRD和UV-Vis等测试手段研究了SnO2/TiO2复合光催化剂的UV-Vis吸收光谱和光催化活性。结果纳米SnO2/TiO2光催化剂的最佳钛锡比为156∶1时的光催化剂具有较高的光催化活性;在氙灯照射下,Ag负载SnO2/TiO2的活性明显增强,具有很强的可见光活性。废水处理实验结果表明,太阳光照射2 h,炼油厂废水COD值由原始的844 mg/L降低至472mg/L,去除率为44.08%,照光5 h,COD去除率为76.78%,且色度和气味均全部去除。载Ag纳米SnO2/TiO2复合光催化剂(摩尔比为1∶1)对炼油厂废水COD有较高的去除效果。结论以最佳工艺条件下制备的TiO2为原料,采用光还原法成功制备出载Ag纳米SnO2/TiO2复合光催化剂,适用于采油厂工业废水的处理,太阳光下照射5 h,COD去除率可达76.78%。
|
| 关 键 词： | SnO2/TiO2复合光催化剂 光催化活性 炼油厂废水 |
Synthesis of SnO_2/TiO_2 composite photocatalyst loaded with Ag nanoparticles and its application in wastewater treatment |
| |
| WEI Yao-wang. Synthesis of SnO_2/TiO_2 composite photocatalyst loaded with Ag nanoparticles and its application in wastewater treatment[J]. Journal of Baoji College of Arts and Science(Natural Science Edition), 2011, 31(3): 36-40. DOI: 61-1290/N.20110902.1539.001 |
| |
| Authors: | WEI Yao-wang |
| |
| Affiliation: | WEI Yao-wang(Yulin Oil Refinery,Yanchang Oil field Co.Ltd.,Yulin 718500,Shaanxi,China) |
| |
| Abstract: | Aim To synthesize SnO2/TiO2 composite photocatalyst loaded with Ag nanoparticles and to study its applications in wastewater treatment.Methods With Ti(n-C4H9)4,CH3CH2OH and SnCl4 as the raw material,SnO2/TiO2 composite photocatalyst loaded with nanoparticles was prepared via sol-gel process and photo-reduction.Rhodamine B was selected as the model pollutant to investigate UV Vis-absorption spectrum and photocatalytic activity of the composite photocatalyst by means of XRD,UV-Vis and so on.The effect of the ... |
| |
| Keywords: | SnO2/TiO2 composite photocatalyst photocatalytic activity refinery wastewater |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
