Porous cobalt-doped alumina catalysts were synthetized using the sol-gel method. The synthesized materials were calcined at 500 °C, 1000 °C and 1100 °C and denoted as CoA-500, CoA-1000 and CoA-1100, respectively. Catalysts were characterized using XRPD, H₂-TPR and low temperature N₂ physisorption techniques. Applied techniques showed that the annealing temperature affects the structural and textural properties of the catalysts. The synthesized catalysts were investigated in the degradation of tartrazine in the presence of Oxone®. The influence of the mass of catalyst, reaction time, reaction temperature and initial pH were investigated. The temperature increase was beneficial for the dye degradation rate. CoA-500 was proved to be the most efficient among the investigated catalysts. The reaction followed the pseudo-first order kinetics for all investigated temperatures for all three catalysts. All cobalt-doped alumina catalysts were found to be efficient in the Oxone® induced catalytic degradation of tartrazine with CoA-500 showing the best performance.

采用溶胶-凝胶法合成了多孔钴掺杂氧化铝催化剂。合成的材料在 500 °C、1000 °C 和 1100 °C 下煅烧，分别表示为 CoA-500、CoA-1000 和 CoA-1100。使用 XRPD、H ₂ -TPR 和低温 N ₂表征催化剂物理吸附技术。应用技术表明，退火温度会影响催化剂的结构和织构性能。在 Oxone® 存在下，合成的催化剂在柠檬黄的降解中进行了研究。考察了催化剂用量、反应时间、反应温度和初始pH值的影响。温度升高有利于染料降解速率。CoA-500 被证明是所研究的催化剂中最有效的。对于所有三种催化剂的所有研究温度，反应遵循准一级动力学。发现所有掺杂钴的氧化铝催化剂在 Oxone® 诱导的柠檬黄催化降解中均有效，其中 CoA-500 表现出最佳性能。