The TiO₂ nanotube arrays (TiO₂ NTs) sensitized by Ag-AgBr nanoparticles were prepared with different alkali (sodium hydroxide, urea and methenamine) as mineralizers by a hydrothermal method, and the TiO₂ NTs/Ag-AgBr photoelectrode showed high visible light absorption, transient photocurrent and photoelectrocatalytic (PEC) performances. The results indicated that TiO₂ NTs/Ag-AgBr (SH) photoelectrode showed the high visible light photocurrent density of 5.86 mA/cm², photovoltage of −0.31 V/cm² and PEC removal efficiency for MO (71.97%), RhB (59.88%), MB (80.76%) and Cr(VI) (52.24%), respectively. The high PEC property could be attributed to the high activities of solar absorption and electron separation. The excellent photoelectrochemical property of TiO₂ NTs/Ag-AgBr would induce the novel photoelectrode promising applications in solar cells and wastewater treatment.

采用水热法，以不同的碱（氢氧化钠，尿素和二甲胺）为矿化剂，制备了Ag-AgBr纳米粒子敏化的TiO ₂纳米管阵列（TiO ₂ NTs），TiO ₂ NTs / Ag-AgBr光电极显示高可见光。吸收，瞬态光电流和光电催化（PEC）性能。结果表明，TiO ₂ NTs / Ag-AgBr（SH）光电极的可见光光电流密度高，为5.86 mA / cm ²，光电压为-0.31 V / cm ^2。和PEC去除效率分别为MO（71.97％），RhB（59.88％），MB（80.76％）和Cr（VI）（52.24％）。PEC的高特性可以归因于太阳吸收和电子分离的高活性。TiO ₂ NTs / Ag-AgBr的优异的光电化学性能将诱导这种新颖的光电极在太阳能电池和废水处理中具有广阔的应用前景。