Two new luminescent Cd(II)-metal−organic frameworks (MOFs), {[Cd(L)-, have been solvothermally synthesized using Cd 2+ ion and L ligand in the presence of auxiliary ligands and characterized by infrared spectroscopy, elemental analysis, powder X-ray diffraction, and thermogravimetry measurement. Topological analyses reveal that MOF 1 is a 6-connected 3-fold interpenetrating pcu network, and MOF 2 is a new 4-connected 2-fold interpenetrating network. Fluorescence titration, cyclic and antiinterference experiments demonstrate that MOFs 1 and 2 both are excellent probes for Fe 3+ , CrO 4 2− , and Cr 2 O 7 2−. The mechanisms of quenching are also deeply studied.

Three Co(II) metal-organic frameworks (MOFs) were synthesized employing a rational design approach. On the basis of the different structures of three complexes, we tested their absorption properties toward two anionic dyes. The absorption results indicate that not only uncoordinated functional groups in the structure play an important role in adsorbing capacity but also physical forces can affect absorbing ability. Water stability testing shows that three crystals display high stability in aqueous solutions with different pH values. To our delight, the framework integrity of three complexes can be well-retained even after absorbing dyes.

Carbon nanofibers (CNFs) were successfully functionalized by the hydrothermal treatment of wet CNFs containing concentrated HNO 3 . The method of synthesis was facile and eco-friendly. With the use of oxidized CNFs as substance, Ni(OH) 2 /oxidized CNFs hybrid materials were prepared by taking a two-step solution phase reaction. The XRD pattern and TEM image suggested a well crystalline Ni(OH) 2 nanoplate with β-phase structure growth on the surface of CNFs. Electrochemistry test results displayed high specific capacitances and long cycle life of the composites. With the use of Ni(OH) 2 / CNFs as cathode and Zn foil as anode, assembled NiZn pouch cells could achieve ∼1.75 V discharge voltage plateau, with a specific capacity ranging from 184 mAh•g −1 at a discharging current density of 5 mA•cm −2 to 91 mAh•g −1 at a discharging current density of 50 mA•cm −2 . Its cycle stability was up to 1200 cycles with a capacity retention of >96% at attaining an energy density of 150 Wh•kg −1 . Compared with a 6 mol•L −1 KOH solution electrolyte battery, the sodium polyacrylate gel electrolyte battery displayed better cycle performance. The function of the gel electrolyte was discussed. The facile method could be extended to the oxidization of the other carbon materials and synthesis of the others carbon composites.

After co-sensitization, the performance of the device has been significantly improved, and the DSSC based on JA3 + S3 shows a high PCE of 8.20%.