采用硝酸铊、偏钒酸钾、亚硫酸钠、二氧化锰为反应原料,经过水热法合成出了偏钒酸钾-硝酸铊纳米复合粉体,活化该复合粉体后考察其对苏丹红Ⅱ号的降解能力,并对粉体进行SEM、XRD、XPS表征。实验结果表明,偏钒酸钾掺杂量为2.5%(质量分数)的复合粉体具有最强的催化活性,25 mg的偏钒酸钾-硝酸铊纳米复合粉体可对200 m L浓度为1×10~(-3)mol/L的苏丹红溶液有效降解。 By using thallium nitrate, potassium metavanadate, sodium sulfite and manganese dioxide as reaction raw materials, potassium metavanadate-thallium nitrate nano-composite powder was synthesized by hydrothermal method. After activating the composite powder, The degradation ability of the powder was characterized by SEM, XRD and XPS. The experimental results show that the composite powder with 2.5% (mass fraction) of potassium metavanadate has the strongest catalytic activity. The 25 mg of potassium metavanadate-thallium nitrate nanocomposite powder has the highest activity of 200 m L 1 × 10 ~ (-3) mol / L Sudan red solution was effectively degraded.