Title: Microwave hydrothermal synthesis of γ-AlOOH and γ-Al_2O_3 nanosheets
Abstract: γ-AlOOH nanosheets were successfully prepared via microwave hydrothermal method at 180℃ for 30 min,by using Al(NO3)3·9H2O,urea as raw materials and polyvinylpyrrolidone(PVP) as surfactant respectively.The morphology-contained γ-Al2O3 can be obtained though the thermal decomposition of γ-AlOOH precursors at 600℃ for 2h.The as-prepared products were characterized by SEM,TEM,SAED and XRD etc.Finally,γ-Al2O3 nanosheets were used to adsorb Congo red from water solution.The experimental results shown that γ-AlOOH nanosheets about 1 μm long,30nm thick can be obtained by using the microwave hydrothermal method.The morphology-contained γ-AlOOH nanosheets were obtained after a thermal decomposition process,and nanometer-size holes appear on the surface of the nanosheets.γ-Al2O3 nanosheets are powerful in the removal of Congo red pollutant from waste water.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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