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 (J_sc) and open-circuit voltage (V_oc) 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.

光电阳极材料作为光电化学电池的核心部件，引起了人们极大的研究兴趣。在这里，通过简单的自上而下的方法可以实现掺杂溴的Bi ₂ O ₃纳米线（BBON）。溴掺杂改变了铋和氧原子的化学环境，也改变了能带边缘的位置。结果，具有有效电荷分离的BBON光电阳极显示出优异的光电化学和光催化活性。研究了BBON在光电化学电池系统中的发电特性。测得的短路电流密度（J _sc）和开路电压（V _oc）为0.6045μA/ cm ²和0.318 V，高于体相Bi ₂ O ₃光电阳极。BBON是一种可能的光阳极材料，具有发电和污染物降解的潜力。