Herein the catalytic performance of two 1 wt% Pd loaded BEA zeolites with Si/Al ratio of 19 and 1300 were investigated for the aqueous phase hydrodechlorination (HDC) of diclofenac, the latter compound a prevalent nonsteroidal anti-inflammatory drug. 1 wt%Pd/SiO₂ and 1 wt%Pd/Al₂O₃ being commonly used HDC catalysts were also studied for comparison purposes. Independently of the Si/Al ratio, palladium loaded BEA catalysts show over 6 times higher activity than conventional Pd/support catalytic systems. This remarkable behavior is largely due to the effect of the three-dimensional structure of zeolite material and the broad range of Pd NPs size obtained.

本文研究了两种硅/铝比为19和1300的1 wt％负载Pd的BEA沸石对双氯芬酸的水相加氢脱氯（HDC）的催化性能，后者是一种流行的非甾体类抗炎药。为了比较，还研究了常用的HDC催化剂1wt％Pd / SiO ₂和1wt％Pd / Al ₂ O ₃。与Si / Al比率无关，钯负载的BEA催化剂显示出的活性是传统Pd /载体催化体系的6倍以上。这种显着的行为主要归因于沸石材料的三维结构和所获得的Pd NPs尺寸范围的广泛影响。