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考察一种新的改性手段—机械力化学法对光催化剂TiO2的改性效果。试用高能球磨将Fe(OH)3对TiO2进行了改性处理,XRD、FT-IR对改性样品进行了结构分析;并以亚甲基蓝为模型化合物对其进行光催化降解实验,考察了球磨时间、掺杂量及溶液pH对光催化性能的影响。结果表明:通过机械能的作用,TiO2得到有效的改性,与改性前相比,其光催化活性得到较大提高。
Investigation of a new modification method - the modification of photocatalyst TiO2 by mechanical chemistry. The modified samples were characterized by XRD and FT-IR. The photocatalytic degradation experiments were carried out with methylene blue as a model compound. The effects of milling time, Effect of Doping Amount and Solution pH on Photocatalytic Activity. The results show that TiO2 is effectively modified by the action of mechanical energy, and its photocatalytic activity is greatly improved compared with that before modification.