Selectivity in the photocatalytic properties of the composites of TiO2 nanoparticles with B- and N-doped graphenes

作者：Gopalakrishnan K; Joshi Hrushikesh M; Kumar Prashant; Panchakarla L S; Rao C N R^*

来源：Chemical Physics Letters, 2011, 511(4-6): 304-308.

DOI：10.1016/j.cplett.2011.06.033

Photodegradation of two dyes, methylene blue (MB) and rhodamine B (RB), adsorbed over composites of TiO2 nanoparticles with pure graphene as well as boron-and nitrogen-doped graphenes has been investigated. MB which is a good electron donor and has a low ionization energy interacts strongly with electron-deficient boron-doped graphene resulting in fast degradation of the dye. On the other hand, RB which is not such a good electron donor and has a higher ionization energy, interacts strongly with electron-rich nitrogen-doped graphene causing a faster degradation of the dye.

• 出版日期2011-8-5