In this paper, we report the facile electrochemical synthesis of porous Eu2O3 particles (NPs) and their implementation as photoanode for photoelectrochemical (PEC) water splitting for the first time. These porous Eu2O3 NPs exhibit a significant photocurrent density of 40 mA cm(-2) at 0.6 V vs. Ag/AgCl in 1 M KOH electrolyte under white light irradiation (Xe lamp, 100 mW cm(-2)). Moreover, the as-synthesized Eu2O3 NPs have an excellent PEC stability with no obvious decay in its photocurrent after 100 min irradiation. (C) 2015 Published by Elsevier Ltd.