Which outcome occurs when a photocatalytic reactor's light intensity exceeds optimum for pollutant degradation?

💡 Explanation

When light intensity exceeds the optimum for photocatalysis of pollutants, the electron-hole generation rate drastically increases, because the electron-hole pairs recombine before reacting with pollutants, thus reducing efficiency. Therefore recombination rate limiting results, rather than surface reduction, enhanced transport, or impossible quantum yield.

• Which outcome occurs when coating thickness varies on optics used inside a pulse laser amplifier where temporal coherence is desired?
• Which risk increases for a depleted uranium (DU) penetrator upon impact?
• Which outcome occurs when continuously increasing pressure on water initially at its triple point?
• Which consequence results when rapid heating exceeds the Leidenfrost temperature?
• Which outcome occurs when a semi-permeable membrane separates solutions?
• Which outcome occurs when a combustion catalyst degrades nearing stoichiometric condition?