Ionothermal synthesis of aluminophosphates used for ion exchange: Influence of choline chloride/urea ratio

Synthesis of aluminophosphate by the ionothermal method using factorial design

“…For the best synthesis conditions, the ion exchange capacity towards Cu 2+ sorption was 0.0801 g Cu 2+ per gram of AlPO. This ion exchange capacity is a bit lower than those obtained using polymeric resins (0.1188 g Cu 2+ per gram of resin) [13].…”

“…These liquids and eutectic mixtures are formed by fused salts (generally formed using organic cations and inorganic anions) at close to ambient temperatures and they can act either as solvents or templates during the synthesis of molecular sieves [2,3]. Although ionothermal synthesis is a potential technique to prepare microporous materials, such as aluminophosphates (AlPOs) [4][5][6][7][8][9][10][11][12][13], the role of the several synthesis parameters in the structure and properties of the zeotype must be well understood.…”

Low melting mixtures in organic synthesis – an alternative to ionic liquids?

“…22 The solubility was 50-to 100-fold higher in glucose/fructose or aconitic acid/ ChCl mixtures than in water. 22 Deep eutectic solvents are also versatile tools for the synthesis of inorganic materials and play a structure directing role as templates for the framework formation of metal phosphates, 85 oxalatophosphates, 86 aluminophosphates, 87 carboxymethylphosphonates, 88 oxalatophosphonates, 89 polyoxometalate-based hybrids, 90 zeolites, 91 or metal-organic frameworks. 92 Their structure directing role was also observed for nucleic acids which can form several secondary structures that reversibly denature on heating in a water-free DES.…”

Photocatalytic Activity and RNO Dye Degradation of Nitrogen-doped TiO2 Prepared by Ionothermal Synthesis

“…26 In our research group, an EU has been used simultaneously as solvent and template to synthesize aluminophosphates that have superior adsorption capacity. 27,28 The aim of this work was to demonstrate that the ionothermal synthesis using a low cost eutectic mixture can be used to prepare nitrogen-doped TiO 2 with photocatalytic activity in the visible light. In this approach, the EU enabled simultaneous nanostructuring and doping of the TiO 2 .…”