How to activate fly ash

Fly ash is generally activated by alkali. Treating fly ash with a certain strong alkali makes some changes in the micro-surface characteristics of fly ash, such as enhanced adsorption and increased specific surface area.

Activation is also called excitation. The process of electrons of particles (such as atoms or ions) jumping from a lower ground state energy level to a higher energy level after gaining enough energy from the outside. Whether a molecule is an activated molecule depends on different rate theories and reactions, such as molecular energy ε > in collision theory; Molecules with ε0 (threshold energy) are activated molecules, which are not necessarily in a transition state, such as energized molecules in single molecule theory. There are many activation methods, such as collision energy transfer activation and light activation.

In addition, activation often refers to the process of changing a substance from an inactive state to an activated state. It also includes the process that biological cells or spores enter a re-growth state after dormancy, such as the activation of metal catalysts, that is, the transition from their oxidation state to their metal state. Biological spores reproduce again in suitable growth environment.