Preparation and characterization of NZVI–MCM-48 mesoporous molecular sieves and its mechanism for treatment of methylene blue wastewater
| Autor: | Yun Yang Wei, Yue Cheng, Jianmin Pan |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Mobil Composition of Matter Carbonization Scanning electron microscope Inorganic chemistry chemistry.chemical_element Ocean Engineering Molecular sieve Pollution chemistry.chemical_compound chemistry Sodium hydroxide Hydrothermal synthesis Mesoporous material Cobalt Water Science and Technology Nuclear chemistry |
| Zdroj: | Desalination and Water Treatment. 52:4520-4526 |
| ISSN: | 1944-3986 1944-3994 |
| Popis: | The nanoscale zero valent iron (NZVI) and ordered mesoporous molecular sieve Mobil Composition of Matter No. 48 (MCM-48) composite material (NZVI–MCM-48) were prepared by the hydrothermal treatment at 120°C for 36 h and then drying at 100°C of synthetic solution with a mole ratio of silica, cobalt, cetyltrimethylammonium bromide (CTAB), sodium hydroxide, sodium fluoride, and water is l:0.01:0.65:0.5:0.1:71 to get the NZVI–MCM-48 raw powder which was then treated by roasting in a nitrogen atmosphere to release the surfactant and by high temperature carbonization and reduction. The existence of NZVI in the composite material and its orderliness, form, and element composition were analyzed by characterization means such as X-ray diffractometer (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), and energy dispersive spectrometer (EDS). The orthogonal degradation experiment for treating methylene blue (MB) wastewater by the composite material led to a 853 mg/g decoloriza... |
| Databáze: | OpenAIRE |
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