MESOPOROUS SILICA MODIFIED WITH AMINO GROUP (NH2-MCM-48) AS ADSORBENT OF Ag(I) AND Cr(III) IN WATER
نویسندگان
چکیده
منابع مشابه
Translational and rotational dynamics of water in mesoporous silica materials: MCM-41-S and MCM-48-S
We investigated the translational and rotational dynamics of water molecules in mesoporous silica materials MCM-41-S and MCM-48-S using the incoherent quasielastic neutron scattering technique. The range of wave vector transfers Q covered in the measurements was from 0.27 to 1.93 Å broad enough to detect both the translational and rotational contributions to the scattering. We used the relaxing...
متن کاملTemplated Growth of Carbon Nanotubes on Nickel Loaded Mesoporous MCM-41 and MCM-48 Molecular Sieves
Chemical vapor deposition was employed to synthesize carbon nanotubes with Ni-loaded MCM-41 and MCM-48 as catalysts and acetylene as precursor at 750°C. Mesoporous Ni MCM-41 and Ni MCM-48 molecular sieves were synthesized by a hydrothermal method and were characterized by XRD and N2 adsorption isotherm. The catalytically synthesized carbon materials were characterized with Raman spectroscopy, N...
متن کاملMesoporous Silica: A Suitable Adsorbent for Amines
Mesoporous silica with KIT-6 structure was investigated as a preconcentrating material in chromatographic systems for ammonia and trimethylamine. Its adsorption capacity was compared to that of existing commercial materials, showing its increased adsorption power. In addition, KIT-6 mesoporous silica efficiently adsorbs both gases, while none of the employed commercial adsorbents did. This mean...
متن کاملRapid and facile synthesis of siliceous MCM-48 mesoporous materials.
A rapid and facile synthesis of cubic MCM-48 mesoporous material based on the modification of Stöber synthesis in as little time as 30 minutes at room temperature is reported in this communication.
متن کاملModified mesoporous MCM-41 as hosts for photochromic spirobenzopyrans.
The influence of the chemical composition and silylation of mesoporous MCM-41 materials on the photochromic behaviour of adsorbed spiropyran (BIPS) and 6-nitrospiropyran was studied. Upon incorporation, the spiropyrans underwent ring opening to form either zwitterionic merocyanine or its corresponding O-protonated form. In all silica MCM-41 or in the MCM-41 containing aluminium, the O-protonate...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Rasayan Journal of Chemistry
سال: 2019
ISSN: 0974-1496,0976-0083
DOI: 10.31788/rjc.2021.1415963