凹凸棒土复合催化剂的制备及对零价汞催化氧化性能的影响

The Preparation of Attapulgite Composite and Its Impact on Catalytic Oxidation Performance of Zero-valent Mercury

以天然的凹凸棒土(ATP)为原料,通过溶胶凝胶法(Sol-gel)、水热法、离子液体熔盐法与不同金属化合物(Fe2O3,Ce O2,Fe VO4,Ce VO4)复合制备催化剂。结果表明,Sol-gel、离子液体熔盐法制得的催化剂对Hg0的催化氧化效果较好,尤以Ce化合物改性ATP催化效果更佳。

Composite catalyst is prepared by the sol gel method（ Sol- gel） molten salt method,hydrothermal method,ionic liquids with different metal compounds（ Fe2O3,Ce O2,Fe VO4,Ce VO4） composite and the natural attapulgite（ ATP） as raw materials. The results show that the catalyst prepared by the method of Sol- gel and ionic liquid molten salt has better effects on properties of Hg0,especially on the catalytic effect of ATP modified by Ce compounds.