【摘要】 采用溶胶-凝胶法制备了具有光催化性能的TiO2纳米粉体,通过差热-热重、红外光谱分析了碳黑对其光催化性能的影响。结果表明:碳黑的加入可使TiO2纳米粉改性,提高其比表面积,TiO2纳米粉光催化活性显著提高,当碳黑加入量摩尔分数为0.75%时,制得的TiO2纳米粉的光催化活性最高。更多还原

【Abstract】 Nanometer TiO2 powder with good photocatalysed property was prepared by the sol-gel method.The influence of carbon black on the photocatalysed property was investigated by TG-DSC and infra-red spectrum measurement.The results indicated that carbon black modified the photocatalysed property of as-produced TiO2 powder.The introduction of carbon increased the specific surface area and photocatalysed property of TiO2 powder.The TiO2 powder reached the highest photocatalysis activity when the mole fraction of added carbon black was 0.75%.更多还原