The results show that DBS and CTAB groups can cap TiO_2 surface under conditions of appropriate pH value and surfactant amounts.

• 结果表明:在适宜的pH范围和表面活性剂用量条件下,DBS和CTAB基团能够较好地修饰在TiO_2纳米粒子表面,实现TiO_2由水相到有机相的相转移过程。