| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1643973 | Materials Letters | 2014 | 4 Pages |
•Hierarchically porous γ-Al2O3 hollow microspheres were synthesized by a MAH method.•The prepared γ-Al2O3 hollow microspheres have high surface area.•This material also exhbits an enhanced adsorption performance for Cu2+.
Hierarchically meso-macroporous γ-Al2O3 hollow microspheres were synthesized at 180 °C for 40 min for the first time by a microwave-assisted hydrothermal (MAH) followed by calcination at 600 °C for 2 h route, using KAl(SO4)2 and urea as raw materials. The results show that the obtained γ-Al2O3 hollow microspheres are about 0.8–1.2 μm in diameter with a shell thickness of approximately 200 nm and the high surface area of 242 m2/g. The prepared γ-Al2O3 hollow microspheres also exhibit an enhanced adsorption performance for Cu2+ in solution than those prepared by hydrothermal (HT) method and commercial γ-Al2O3.
