Abstract
Remazol Brilliant Orange 3R (Reactive Orange 16, 016) dyes present environmental concerns since they are persistent organics, which are difficult to remove with conventional treatment processes. CdO-ZnO nano fibers doped material was used as a heterogeneous photo-catalyst for degradation of high concentrations of reactive O16 dyes (70.9%), which has remarkable active surface area. The expected mechanism of the photo-decomposition process has been discussed. Initially, the CdO-ZnO nanofibers were prepared by facile wet-chemical process at low-temperature and then characterized by UV-vis, FT-IR, BET, XRD, FESEM, TEM, XPS, and XEDS methods. The results of this approach clearly indicate that the prepared doped nanofibers shows a good photo-catalytic activity than commercially available P25-TiO2, which can be used as an active photo-catalyst for the treatment of colored dyes in wastewater for environmental remediation in broad scale.