A two-dimensional metal-organic framework, FICN-12, was constructed from tris[4-(1-pyrazole-4-yl)phenyl]amine (HTPPA) ligands and Ni secondary building units. The triphenylamine moiety in the HTPPA ligand readily absorbs UV-visible photons and sensitizes the Ni center to drive photocatalytic CO reduction. FICN-12 can be exfoliated into monolayer and few-layer nanosheets with a "top-down" approach, which exposes more catalytic sites and increases its catalytic activity.
View Article and Find Full Text PDFThe discovery of novel high-nuclearity oxo-clusters considerably promotes the development of cluster science. We report a high-nuclearity oxo-cluster-based compound with acid/alkali-resistance and radiation stabilities, namely, (HO)[CdSbO(l-tta)(l-Htta)(HO)]·29HO (FJSM-CA; l-Htta = l-tartaric acid), which features a two-dimensionally anionic layer based on the largest Sb-oxo-clusters with 28-metal-ion-core [CdSbO]. It is challenging to efficiently capture Sr, Ba (analogue of Ra), and [UO] ions from aqueous solutions due to their high water solubility and environmental mobility, while it is unprecedented that a novel Sb-oxo-cluster-based framework material FJSM-CA can efficiently remove these hazardous ions accompanied with intriguing structural transformations.
View Article and Find Full Text PDFZhongguo Ying Yong Sheng Li Xue Za Zhi
August 2010
Beijing Da Xue Xue Bao Yi Xue Ban
October 2010
Objective: To evaluate the early interleukin-17 (IL-17) production in airway upon Chlamydia trachomatis infection and its relationship with the secretion of interleukin-6 (IL-6) and macrophage inflammatory protein 2 (MIP-2) in local site.
Methods: In vivo, a murine model of pneumonia induced by intranasal inoculation with Chlamydia trachomatis mouse pneumonitis (MoPn, now classified as a new species C. muridarum) was used for the study.
Huan Jing Ke Xue
November 2009
Rain and atmospheric particle samples were collected in the rural area of Taian and Shenzhen in 2007, respectively. Rain sampling was carried out during the precipitation process and several samples were got from the beginning of one precipitation to the end. The chemical character changes during precipitation and the changes of concentration of particles before and after rain were studied in this research to understand the contribution of particles on the rain chemical character and the rain-out effect for particles.
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