Abstract
Abstract
In this paper, we present a convenient hydrothermal method to synthesize hierarchical microspheres consisting of ammonium aluminum carbonate hydroxide (AACH) nanowires with a diameter of about 400 nm and length ∼50 μm on aluminum foils. After calcination at 900 °C, hierarchical γ-Al2O3 microspheres with mesoporous structures were obtained successfully, which possess a high specific surface area of 124 m2 g−1 and high porosity of 0.71cm3 g−1. The possible formation mechanism was discussed. The as-prepared mesoporous γ-Al2O3 hierarchical nanostructures exhibited improved adsorption performance towards Congo red in aqueous solution, 90% CR could be removed rapidly in 20 min, and its saturation adsorption capacity in 80 mg l−1 Congo red can reach to 180 mg g−1, it suggests that the hierarchical γ-Al2O3 microspheres with unique microstructure have potential in wastewater treatment.
Funder
National Natural Science Foundation of China
the Program for New Century Excellent Talents in University
Sichuan Science and Technology Program
Subject
Metals and Alloys,Polymers and Plastics,Surfaces, Coatings and Films,Biomaterials,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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