In this study, CdS NCs decorated TiO2 nano-tubes (CdS NCs/TiO2 NTs) photoelectrode was fabricated through anodization, followed by electrodeposition strategy. The resulting samples were characterized by SEM, XPS, UV-vis DRS and photoelectrochemical (PECH) measurements. It was found that the CdS NCs/TiO2 NTs photoelectrode exhibited intense visible light absorbance ranging from 400-700 nm and high transient photocurrent density of 9.62 mA cm(-2). Furthermore, AC/PTFE cathode was prepared by rolling the AC and PTFE latex on a machine with the stainless steel as support. Subsequently, an effective and stable PEC system based on the as-fabricated CdS NCs/TiO2 NTs photoanode and AC/PTFE cathode was constructed for the degradation of RhB. Results showed that with the help of +2.0V external potential, the PEC system exhibited superior PEC performance, in which 97.5% of RhB could be degraded. In addition, the generation rate of (OH)-O-center dot radicals and contribution of each reactive species to the PEC efficiency were also detected. Therefore, the efficient and stable PEC system based on CdS NCs/TiO2 NTs photoanode and AC/PTFE cathode could be a versatile candidate in pollutants elimination and water splitting. (C) 2015 Elsevier Ltd. All rights reserved.