Glass foams from acid-leached phlogopite waste

High throughput investigation of an emergent and naturally abundant 2D material: Clinochlore

“…This analysis is also compatible with the fact that Fe has the highest energy cost, calculated by our DFT, to replace an Al atom in the octahedral sites, favoring its incorporation into the material structure mostly as segregated inclusions. It is important to stress that previous works demonstrated that heat treatment and acid leaching can remove some impurities from natural phyllosilicates [70,71], thus, this process could potentially be applied to our material to purify and further increase the bandgap energy (at least up to 4.4 eV, as suggested by our DFT calculation), restoring some of the pristine characteristics of the crystal (these suggested processes are out-ofthe scope of the current work). This is desired for applications using clinochlore as a suitable and alternative 2D insulating material, highly needed for the development of nanoelectronic devices [25].…”

Multi-technique structural characterization of glass foams with complex pore structures obtained through phase separation

“…1,6 The porous framework of a glass foam is characterized by a wide range of pore sizes with similar shape and distribution throughout the entire sample. 2 Glass foam synthesis generally combines a glass powder and a foaming agent, and a wide range of source materials and compositions have been explored, including the use of waste glass and other waste residues [7][8][9][10] as an alternative to recycle, reduce costs, and preserve the environment. As their properties strongly depend on their composition and their porous framework, considerable effort has been made to tune the pore width distribution of glass foams by controlling the foaming process.…”