The electrode potential for the reduction of hydrogen ions to produce hydrogen gas.

2H+ + 2e- = H2

in a neutral medium is 0.15 V. The valence and conduction band edges of the nano structured semiconductor CdS lie at 1.95 and 0.45 V respectively. Explain, giving reasons, whether or not reduction of H+ will occur on illumination of CdS nanoparticles with light energy greater than the band-gap energy in a neutral solution.