Chemical Physics Letters ( IF 2.8 ) Pub Date : 2020-09-22 , DOI: 10.1016/j.cplett.2020.138022 Rahma Bensouilah , Tijani Hammedi , AdbelKader Ouakouak , Abdelhamid Ghorbel , Zouhaier Ksibi
Noble metals supported on ZrO2 catalysts were elaborated using sol-gel and impregnation methods then studied for catalytic wet air oxidation of bisphenol-A (BPA) in water. The prepared solids were characterized by N2-physisorption at 77 k, XRD, TEM, TGA/TDA, FTIR spectroscopy, XPS and H2-TPR techniques. BPA solution of 10 mg/L was successfully oxidized at 100 °C and Pair = 20 bar. For pure ZrO2, a conversion of 49% was obtained within 5 h. The catalytic activity was improved by adding noble metals resulting in a BPA conversion surpassing 90% for 3%Ru/ZrO2 after 3 h. No catalyst deactivation was reported.
中文翻译:
氧化锆上负载的各种贵金属在双酚A溶液湿式催化氧化中的效率比较研究
使用溶胶-凝胶和浸渍方法对负载在ZrO 2催化剂上的贵金属进行了精细加工,然后研究了其在水中对双酚A(BPA)的催化湿式空气氧化。通过77k的N 2-物理吸附,XRD,TEM,TGA / TDA,FTIR光谱,XPS和H 2 -TPR技术表征制备的固体。10 mg / L的BPA溶液在100°C和P air = 20 bar下成功氧化。对于纯ZrO 2,在5小时内转化率为49%。通过添加贵金属提高了催化活性,导致3小时后3 %Ru / ZrO 2的BPA转化率超过90%。没有催化剂失活的报道。