期刊
RSC ADVANCES
卷 4, 期 8, 页码 4047-4054出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra44623a
关键词
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资金
- National Natural Science Foundation of China [21171158, 91022033, 51072227]
- National Basic Research Program of China [2010CB934700]
N-alkyl chains have been successfully grafted into the interlayer space of a Ruddlesden-Popper-type double-layered peroviskite, H2CaTa2O7, via a hydrolysis-esterification process. During the chemical graft process, the parent layered structure is well preserved with magnifying the tailored c lattice parameter. IR and solid-state C-13 CP/MAS NMR spectra indicated that oxyalkyl chains were successfully introduced. Thermogravimetric curves of the products exhibit the amount of n-alkoxyl groups per perovskite unit [CaTa2O7] is approximated to 1. A linear relationship with a slope of 0.478 nm per carbon atom is observed between the c lattice parameter and the number of carbon atoms in the n-alkyl chains, which illustrates that the n-alkyl chains form bilayers with a tilt angle of 70 degrees. The photocatalytic activities of these products are also discussed. The 1-octadecanol derivative of H2CaTa2O7 is found to serve as an excellent catalyst for the catalytic reduction of rhodamine B (RhB) and methyl orange (MO), which is set as a novel example of an application of this tailored n-propoxy derivative of H2CaTa2O7.
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