Table 1 Different stages and their products in gamma radiation radiolysis of aqueous media [36]
From: Recent Advances in Shape-Controlled Synthesis of Noble Metal Nanoparticles by Radiolysis Route
Different stages of radiolysis of water | Important reactions |
|---|---|
Physical stage (<10−15 s) | H2O ⇝ H2O⋅ + + e− H2O ⇝ H2O* |
Physico-chemical stage (~10−15–10−12 s) | H2O⋅ + + H2O → ⋅OH + H3O H2O* → H2O \( {\mathrm{e}}^{-}\to {\mathrm{e}}_{\mathrm{th}}^{-}\to {\mathrm{e}}_{\mathrm{tr}}^{-}\to {\mathrm{e}}_{\mathrm{aq}}^{-} \) |
Non-homogeneous chemical stage (10−12–10−6 s) | \( {\mathrm{H}}_2\mathrm{O}\rightsquigarrow {\mathrm{e}}_{\mathrm{aq}}^{-},{\mathrm{H}}^{\cdot },{}{}^{\cdot}\mathrm{O}\mathrm{H},{\mathrm{H}}_2,{\mathrm{H}}_2{\mathrm{O}}_2,{\mathrm{H}}^{+},{\mathrm{O}\mathrm{H}}^{-} \) |