Mouse anti-Human FAU monoclonal antibody, clone 4D21

The interest for the environmental, industrial and technological applications of Si-rich zeolites is very high. Among the large-pore zeolites, faujasite is one of the most exploited. The aim of this paper is to obtain detailed structural information on natural and NH4-exchanged faujasite before using this zeolite for dealumination tests, targeting the realization of large single crystals of all-silica faujasite. As one of the most Si-rich natural samples, faujasite from Sasbach (Na13.64K0.87Mg10.46Ca8.89Sr0.34(Al51.95Si139.57)O-384 center dot 272.29 H2O; space group Fd-3m;a = 24.6906(2) angstrom) was chosen for study. Single-crystal X-ray diffraction structural refinements of both natural and NH4-exchanged samples are reported and discussed. In the natural faujasite sample, almost all the extraframework species could be located for the first time. In the NH4-exchanged sample the ammonium and water molecule sites were located. Ammonium cations occupy two of the sites occupied by the extraframework species in the original mineral.

Development of novel hybrid photocatalysts with high efficiency and durability for photocatalytic hydrogen generation is highly desired but still remains a grand challenge currently. In the present work, TiO2-doped microporous zeolite SSZ-13 with varying amounts of TiO2 were prepared using solid state dispersion (SSD) method, as photocatalysts for the evolution of photocatalytic degradation of methylene blue and H-2 evolution under UV-vis irradiation. The incorporation of P25 into SSZ-13 zeolite significantly enhanced the photocatalytic activity for H2 evolution (reduction) and degradation of methylene blue (oxidation). And the most efficient photocatalyst was proven to 60%TiO2 loading, whose H-2 generation (126.7 mu mol/h) was profoundly enhanced for 3 times with respect to P25 (37.2 mu mol/h) and degradation rate of methylene blue was 96% within 2.5 h. The photocatalysts were characterized by XRD, SEM, BET, UV-vis and PL. The results showed TiO2 were well dispersed on the surface of zeolite and the strong interaction between P25 and SSZ-13 zeolite, which improved significantly photocatalytic performance of P25. This study suggested the potential photocatalytic application of microporous zeolite SSZ-13 as a catalyst carrier. (C) 2017 Elsevier Inc. All rights reserved.