ABSTRACT

New catalysts satisfying simultaneously pollutant-removing and energy-saving have great potential in numerous environmental applications. To develop catalysts effective in decomposing organic dye pollutants under the energy-saving conditions of catalytic wet air oxidation (CWAO), herein we synthesized a new ZrGeO₄ catalyst. The catalytic performance of the ZrGeO₄ sample is superior to the previous CeGeO₄ and ZrHIO₆·4H₂O analogues in degrading rhodamine B (RhB) and methylene blue (MB). After being recycled for 3 times in the degradation experiments, the ZrGeO₄ catalyst did not undergo obvious loss in activity and change in chemical composition. The main active species for the dye degradation over ZrGeO₄ were also investigated.

摘要

同时满足污染物去除和节能要求的新型催化剂在众多环境应用中具有巨大潜力。为了开发在催化湿式空气氧化（CWAO）的节能条件下能有效分解有机染料污染物的催化剂，本文合成了一种新型ZrGeO ₄催化剂。在降解若丹明B（RhB）和亚甲基蓝（MB）方面，ZrGeO ₄样品的催化性能优于以前的CeGeO ₄和ZrHIO ₆ ·4H ₂ O类似物。在降解实验中回收3次后，ZrGeO ₄催化剂的活性和化学组成没有明显降低。还研究了染料在ZrGeO ₄上降解的主要活性物质。