MCM-41表面接枝过渡金属（Co^2＋，Ni^2＋）对萘普生吸附性能的影响

在氨基化MCM-41表面引Co^2＋，Ni^2＋，作为吸附剂来去除水中的萘普生．氨基化MCM-41用X射线衍射、氮气吸／脱附曲线、红外光谱和热重分析表征．吸附萘普生的实验在室温25℃下进行．材料的吸收能力顺序为：NiNH2-MCM-41〉CoNH2-MCM-41．该吸附结果与材料的结构和性质有关，材料的氨基化高度依赖于嫁接过程的性质和金属的选择．

Metal (M =Co2 + and Ni2 +) Grafted Mesoporous MCM-41 : Effect of Transition Metal Incorporation on Adsorption of Naproxen from Water

Incorporation of transition metals onto the surface of mesoporous silica via grafting techniques could become a potential strategy. Here we reported the incorporation of Co^2＋ or Ni^2＋ onto the surface of mesoporous MCM-41 via an amino-organic grafting method and the screening of the materials as sorbents for the removal of Naproxen from water. The resulting metal-modified materials were fully characterized using X-ray powder diffraction, N2 adsorption/desorption isotherms gathered, FT-IR, and TGA. Adsorption experiments showed that Ni-based materials were good sorbents for the uptake of Naproxen at 25℃. The materials uptake capacities decreased as follows：NiNH2-MCM-41 〉 CoNH2-MCM-41. In general, the adsorption results correlated well with the observed structural and textural properties of the materials, suggesring also that the metal amino-organic loading was highly dependent on the nature of grafting process and choice of metal.