Effect of thermochemical activation of clay raw materials on phase formation, microstructure and properties of aluminosilicate proppants

Modification of Kaolin with Carbon Quantum Dots as Composite for Methylene Blue Removal: Literature Review and Experiment

“…However, the morphology of the material experienced changed with modification, such that the structural layers were disintegrated into fragments which can be seen along with stacks of kaolin sheets (Figures 2b, d, f, h). High-temperature treatment likely disrupted the morphology and caused defects to the material as have been reported in earlier studies, which could have reduced the structure size (Chai et al, 2020;Vakalova et al, 2019), whereas the acid-alkali treatment might have increased the spaces between particles (Boukhemkhem & Rida, 2017;Ferrazzo et al, 2020).…”