Self-assembly of flower-like γ-AlOOH and γ-Al₂O₃ with hierarchical nanoarchitectures and enhanced adsorption performance towards methyl orange

Abstract

Facile fabrication of novel flower-like γ-Al2O3 with enhanced adsorption performance involving with contaminants.

Biomolecule‐Assisted Synthesis of Hierarchical Multilayered Boehmite and Alumina Nanosheets for Enhanced Molybdenum Adsorption

“…Due to the strong dependence of the electronic structure, the chemical reactivity, and the surface energy of Al 2 O 3 on its morphology, many efforts have been carried out to develop nanosized Al 2 O 3 with a controlled size and morphology . In particular, mesoporous γ‐Al 2 O 3 materials with distinct morphology, such as nanospheres, flower‐like, urchin‐like, nanoflakes, nanosheets, and nanorolls have been fabricated by using both template‐free and template‐based methods. Despite some success, there is still a strong need for the development of new strategies for fabricating mesoporous Al 2 O 3 with controlled morphology, pore size, and crystallinity.…”

Synthesis of curtain-like crumpled boehmite and γ-alumina nanosheets

“…12 Accordingly, controlling the morphology of boehmite is of great interest since it governs the terminated facets of the final alumina product and the corresponding acid-base properties, 13 which play critical roles in adsorbent, catalyst, and catalyst support applications. Over the past decade, boehmite with numerous kinds of morphologies has been reported, such as nanorods, [14][15][16] nanowires, 17 nanofibers, 18 nanotubes, [19][20][21] nanoplates, [22][23][24][25] nanobelts, 5 bunches of aligned nanowires, 12 cantaloupe-like structures, 26 flower-like structures, 7,[27][28][29][30][31] and hollow spheres. [32][33][34][35] After calcination treatment, however, serious aggregation or sintering is typically encountered by the nanomaterials.…”

A non-template approach to fabricate mesoporous alumina with predefined morphology by solid-state transformation of Al-based metal–organic frameworks

“…Generally, alumina is obtained by dehydration of boehmite (g-AlOOH) at high temperature, and the morphology and nanostructure of precursor can be retained during this process. 10,11 Hence, the fabrication of precursor with unusual morphology and structure is crucial for obtaining alumina with controlled morphology and structure. Many synthetic methods could have good effect on controlling morphology and textural structure of boehmite precursor, but they always need organic solvents, templates, or surfactants as structure directing agents, which made them sophisticated and multistep.…”