【摘要】 以电气石为复合载体,钛酸丁酯为原料,采用超声辅助溶胶-凝胶法制备了TiO₂/电气石复合材料。用XRD、FT-IR、UV-Vis DRS、SEM等测试手段对复合材料的微观结构、光吸收性能及元素组成等进行了表征。以TNT作为目标污染物,考察了复合材料的光催化性能。结果表明,TiO₂复合电气石后,晶粒细化,材料吸收光谱产生红移,光催化活性显著提高,且具有良好的稳定性。更多还原

【Abstract】 Using Ti（ OC₄H₉）₄ as raw material and tourmaline as support,TiO₂/ tourmaline was synthesized via sol-gel method with ultrasound assisted,and the structure and performance of materials were characterized by XRD,UV-Vis DRS,FT-IR and SEM. The photocatalytic degradation of TNT was investigated by TiO₂/ tourmaline under UV light irradiation. It has been found that the average crystalline grain size of TiO₂ was reduced and the grain size refined. The light was absorption band edge of TiO₂/ tourmaline composites produced the red shift,and the ability to absorb light was improved in the visible area. Moreover,the photocatalytic activity of TiO₂/ tourmaline was high and TiO₂/ tourmaline had good performance of recycling.更多还原