Institute of New Catalytic Materials Science, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, China.
Nanoscale. 2011 Apr;3(4):1690-6. doi: 10.1039/c0nr00841a. Epub 2011 Feb 22.
Organic-inorganic hybrid materials of mesostructured titanium phosphonates with unusual uniform lines of macropores were synthesized by using bis(hexamethylenetriamine) penta(methylenephosphonic acid) (BHMTPMP) as the coupling molecule, through a one-pot hydrothermal process without any surfactant assistance. A wormhole-like mesostructure and many uniform parallel lines of macropores divided by solid ridges in the same direction were confirmed by N(2) sorption, SEM and TEM observations. This novel macropore architecture has never been observed in other metal phosphonate materials, which may be directly related to the structure nature of BHMTPMP with extra long alkyl chains. The structural characterization of FT-IR and MAS NMR revealed the integrity of organic groups inside the hybrid framework. The hybrid materials were also used as adsorbents for heavy metal ions and CO(2), in order to clarify the impacts of the organic contents and organic types on the physicochemical properties of the synthesized hierarchical macro-/mesoporous phosphonate materials.
介孔钛膦酸盐的有机-无机杂化材料具有不寻常的均匀大孔线，通过一锅水热法合成，无需使用任何表面活性剂，使用双（六亚甲基三胺）五（亚甲基膦酸）（BHMTPMP）作为偶联分子。通过 N（2）吸附、SEM 和 TEM 观察，证实了具有相同方向的固体脊分隔的蠕虫状介孔结构和许多均匀的平行大孔线。这种新型大孔结构在其他金属膦酸盐材料中从未观察到过，这可能与 BHMTPMP 具有额外长的烷基链的结构性质直接相关。FT-IR 和 MAS NMR 的结构表征揭示了杂化骨架内部有机基团的完整性。该杂化材料还被用作重金属离子和 CO（2）的吸附剂，以阐明有机含量和有机类型对合成的分级大/介孔膦酸盐材料物理化学性质的影响。
