Preparation of ZnO/CdS/BC Photocatalyst Hybrid Fiber and Research of Its Photocatalytic Properties

Abstract

An environment-friendly biomaterial bacterial cellulose (BC) is introduced to substitute general organic polymers to assist the preparation of ZnO/CdS/BC photocatalyst hybrid nanofiber through coprecipitation method under the low-temperature condition. The XRD, XPS, and SEM results show that high load of ZnO/CdS/BC ternary hybrid fiber can be produced. TGA curves scan shows that ZnO/CdS/BC hybrid fiber has better thermal properties than bacterial cellulose. The UV-Vis spectra of the ZnO/CdS/BC hybrid nanofiber (0, 10, 20, and 50 wt%, resp.) show that photocatalytic activities of ZnO/CdS/BC are influenced by the added amount of CdS. The degradation curve of methyl shows that ZnO/CdS/BC nanohybrid fibers exhibit excellent photocatalytic efficiency.

Rapid Homogenization Method For Synthesis Of Core/shell ZnO/CdS Nanoparticles And Their Photocatalytic Evaluation

“…Usually, the common methods to increase the utilization of visible light and enhancing the separation of charge carriers are doping of metal oxides or using a sensitizer. Among the most widely used inorganic semiconductor sensitizers, CdS is therefore considered to be the most suitable visible light sensitizer for ZnO [23][24][25]. Also, ZnO is relatively non-toxic material, a core-shell system of ZnO and CdS nanostructures is expected to be highly effective [26][27].…”

Surface Engineering of CdS Quantum Dots for Photocatalytic Applications under Direct Sunlight

“…However, the reported photocatlytic efficiencies using CdS QDs alone was relatively low and also concerns were raised regarding its toxicity. Thus, ZnO being a non‐toxic material can be a good option for forming a shell or hybridization with CdS QDs as photocatalyst.…”