Question

does phosphorescence have larger lifetimr than fluorescence

Answer 1

Fluorescence and phosphorescence are types of molecular luminescence methods. ... In phosphorescence, there is a change in electron spin, which results in a longer lifetime of the excited state (second to minutes). Fluorescence and phosphorescence occurs at longerwavelength than the excitation radiation.

Answer 2

The reason is that the increase of the osmotic pressure at the membrane surface as well as the shield effect of the cations on the membrane charged groups becomes progressively stronger,


a decrease in the membrane repulsion forces on the anions occurs resulting in the decrease in the permeate flux and dissolved solids