Abstract
Photoanode material, as the core component of photoelectrochemical cell, has attracted great research interest. Here, bromine doped Bi2O3 nanowires (BBON) are achieved through a simple top-down method. Bromine doping changes the chemical environment of bismuth and oxygen atoms, and also changes the band edge position. As a result, BBON photoanode with efficient charge separation shows excellent photoelectrochemical and photocatalytic activity. The electricity generation property of BBON in the photoelectrochemical cell system is investigated. The short-circuit current density (Jsc) and open-circuit voltage (Voc) are measured to be 0.6045 μA/cm2 and 0.318 V, which is higher than that of bulk Bi2O3 photoanode. BBON is a possible candidate photoanode material and provides potential for electricity generation and pollutants degradation.
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