广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2015年
2期
34-36
,共3页
MnO2/石墨烯复合物%甲苯降解%臭氧催化氧化%水热法
MnO2/石墨烯複閤物%甲苯降解%臭氧催化氧化%水熱法
MnO2/석묵희복합물%갑분강해%취양최화양화%수열법
MnO2/graphene composite%toluene degradation%ozone catalytic oxidation%hydrothermal method
采用一步水热合成法,在180℃,12 h条件下制备了30%二氧化锰/石墨烯( MnO2/G)复合材料。实验结果表明：MnO2均匀且较为牢固地锚定于石墨烯表面,同时MnO2的沉积阻止了多层石墨烯的复合,从而使得复合物具有较大的比表面积。相同条件下, MnO2/石墨烯相较于单纯MnO2或石墨烯具有很好的臭氧催化氧化甲苯性能,这可以归结于MnO2和石墨烯间的协同催化作用。
採用一步水熱閤成法,在180℃,12 h條件下製備瞭30%二氧化錳/石墨烯( MnO2/G)複閤材料。實驗結果錶明：MnO2均勻且較為牢固地錨定于石墨烯錶麵,同時MnO2的沉積阻止瞭多層石墨烯的複閤,從而使得複閤物具有較大的比錶麵積。相同條件下, MnO2/石墨烯相較于單純MnO2或石墨烯具有很好的臭氧催化氧化甲苯性能,這可以歸結于MnO2和石墨烯間的協同催化作用。
채용일보수열합성법,재180℃,12 h조건하제비료30%이양화맹/석묵희( MnO2/G)복합재료。실험결과표명：MnO2균균차교위뢰고지묘정우석묵희표면,동시MnO2적침적조지료다층석묵희적복합,종이사득복합물구유교대적비표면적。상동조건하, MnO2/석묵희상교우단순MnO2혹석묵희구유흔호적취양최화양화갑분성능,저가이귀결우MnO2화석묵희간적협동최화작용。
30%MnO2/graphene composite was synthesized at 180 ℃ for 12 h under hydrothermal condition. MnO2 nanoparticles were uniformly distributed throughout the surface of graphene nanosheets. In turn, the aggregation of graphene sheets can be partly prevented by the intercalation of MnO2 particles within the graphene layers, which resulted in high surface area on MnO2/graphene composite. Under same reaction condition, MnO2/graphene composite showed better reaction performance than pure MnO2 or graphene in ozone catalytic oxidation of toluene which was attributed to the synergetic effect of graphene and MnO2.
