Herein, we report highly catalytic reductive degradation of xanthene based dye, Rhodamine B (RhB) over Palladium-reduced graphene oxide (Pd-rGO) nanocomposites. In presence of minimum catalytic amount (viz. 0.025 mg of Pd-rGO) employed for the reduction of RhB, the reduction completes in less than 30 s with an apparent rate constant (k_app) of 63.83 × 10⁻³ s⁻¹ and highest ever to be reported catalytic factor/normalized rate constant (k_nor) of 2.6 × 10⁻³ s⁻¹g⁻¹. The results were compared with catalytic performance of Silver-reduced graphene oxide (Ag-rGO) and the k_app was observed to follow the order: k_Pd-rGO ≫ k_Ag-rGO > k_Uncat.

在本文中，我们报道了在钯还原的氧化石墨烯（Pd-rGO）纳米复合材料上，基于氧杂蒽的染料若丹明B（RhB）的高度催化还原性降解。在用于还原RhB的最小催化量（即0.025 mg Pd-rGO）存在下，还原在不到30 s的时间内完成，表观速率常数（k _app）为63.83×10 ^-3 s ^-1和有史以来最高的催化因子/归一化速率常数（k _nor）为2.6×10 ^-3 s ^-1 g ^-1。将结果与还原银氧化石墨烯（Ag-rGO）和k _app的催化性能进行了比较观察到按照顺序：ķ_的Pd-RGO » ķ_的Ag-RGO  >  ķ _Uncat。