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环境化学  2015 

载体制备方法对贵金属催化剂Ru/ZrO2催化湿式氧化性能的影响

Keywords: ZrO2,比表面积,催化剂,湿式氧化,苯酚,乙酸

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Abstract:

蒸煮处理水合氢氧化锆制备了ZrO2-A;将水合氢氧化锆静置过夜制得ZrO2-B;以此两种载体通过初湿浸渍法制得Ru/ZrO2催化剂.在BET测试中,ZrO2-A载体及其相应催化剂的比表面积远高于ZrO2-B载体及相应催化剂.TPR表明Ru/ZrO2-A中Ru的分散性更好,金属与载体的相互作用更为紧密.以苯酚和乙酸水溶液为模拟废水进行催化剂的评价,结果表明,Ru/ZrO2-A无论是在反应活性还是稳定性上均优于Ru/ZrO2-B.

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