title: Hierarchical Bi based nanobundles: an excellent photocatalyst for visible-light degradation of Rhodamine B dye.
abstract: Hierarchical Bi based nanobundles were self-assembled via an aqueous reduction approach using hydrazine hydrate as reductive agent, and were used as photocatalysts for the degradation of Rhodamine B (RhB) under visible light. PVP molecules were designed as inducing agent to construct the Bi based nanobundles. The as-obtained samples were characterized by X-ray diffraction (XRD), energy dispersive X-ray (EDX), thermogravimetric-differential thermal analyzer (TG-DTA), infrared spectroscopy (IR) and field emission scanning electron microscopy (FESEM) to get clear information of the crystals. A possible formation mechanism for the interesting architectures was proposed in the paper. The Bi based nanobundles exhibited excellent photocatalytic activity and good cycling performance towards photodegradation of RhB under visible light. The pH-sensitive degradation can reach 96% in degradation rate after 90 min, which indicates potential applications of the Bi based nanobundles on the degradation of organic pollutants. Degradation mechanism is proposed on the combination of Bi and BiOCl crystals.
authors: College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
authors: Fangfang
authors: F
authors: Gao
authors: College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
authors: Yan
authors: Y
authors: Zhao
authors: College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
authors: Yawen
authors: Y
authors: Li
authors: College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
authors: Gongjuan
authors: G
authors: Wu
authors: College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
authors: Yan
authors: Y
authors: Lu
authors: College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
authors: Yuehong
authors: Y
authors: Song
authors: College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
authors: Zhifang
authors: Z
authors: Huang
authors: College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
authors: Na
authors: N
authors: Li
authors: College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China. Electronic address: zhaojz@hnu.edu.cn.
authors: Jingzhe
authors: J
authors: Zhao
keywords: Aqueous synthesis; Bi based nanobundles; Visible-light induced degradation