Adsorption of Organic Dyes by TiO2@Yeast-Carbon Composite Microspheres and Their In Situ Regeneration Evaluation
文献类型：期刊论文
| 作者 | Zheng Pei ; Zhang Kaiqiang ; Dang Yu ; Bai Bo ; Guan Weisheng ; Suo Yourui ; Bai, B (reprint author), Chinese Acad Sci, Northwest Plateau Inst Biol, Xining 810001, Peoples R China. |
| 刊名 | JOURNAL OF NANOMATERIALS
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| 出版日期 | 2015 |
| 英文摘要 | TiO2@yeast-carbon microspheres with raspberry-like morphology were fabricated based on the pyrolysis method. The obtained products were characterized by field emission scanning electron microscopy (FE-SEM), energy dispersive spectrometry (EDS), and X-ray diffraction (XRD). Effects of initial dye concentration and contact time on adsorption capacity of TiO2@yeast-carbon for cationic dye methylene blue (MB) and anionic dye congo red (CR) were investigated. Experimental data were described by Langmuir, Freundlich, Temkin, and Koble-Corrigan isotherm models, respectively. It was found that the equilibrium data of MB adsorption were best represented by Koble-Corrigan, and CR adsorption was best described by both Freundlich and Koble-Corrigan isotherm models. The kinetic data of MB and CR adsorption fitted pseudo-second-order kinetic model well. The results demonstrated that TiO2@yeast-carbon microspheres achieved favorable removal for the cationic MB in comparison with that for the anionic CR. In addition, regeneration experimental results showed that TiO2@yeast-carbon exhibited good recycling stability, reusability, and in situ renewability, suggesting that the as-prepared TiO2@yeast-carbon might be used as the potential low cost alternative for recalcitrant dye removal from industrial wastewater. One possible mechanism for regenerating dye-loaded TiO2@yeast in situ was also proposed.; TiO2@yeast-carbon microspheres with raspberry-like morphology were fabricated based on the pyrolysis method. The obtained products were characterized by field emission scanning electron microscopy (FE-SEM), energy dispersive spectrometry (EDS), and X-ray diffraction (XRD). Effects of initial dye concentration and contact time on adsorption capacity of TiO2@yeast-carbon for cationic dye methylene blue (MB) and anionic dye congo red (CR) were investigated. Experimental data were described by Langmuir, Freundlich, Temkin, and Koble-Corrigan isotherm models, respectively. It was found that the equilibrium data of MB adsorption were best represented by Koble-Corrigan, and CR adsorption was best described by both Freundlich and Koble-Corrigan isotherm models. The kinetic data of MB and CR adsorption fitted pseudo-second-order kinetic model well. The results demonstrated that TiO2@yeast-carbon microspheres achieved favorable removal for the cationic MB in comparison with that for the anionic CR. In addition, regeneration experimental results showed that TiO2@yeast-carbon exhibited good recycling stability, reusability, and in situ renewability, suggesting that the as-prepared TiO2@yeast-carbon might be used as the potential low cost alternative for recalcitrant dye removal from industrial wastewater. One possible mechanism for regenerating dye-loaded TiO2@yeast in situ was also proposed. |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/5470]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Zheng Pei,Zhang Kaiqiang,Dang Yu,et al. Adsorption of Organic Dyes by TiO2@Yeast-Carbon Composite Microspheres and Their In Situ Regeneration Evaluation[J]. JOURNAL OF NANOMATERIALS,2015. |
| APA | Zheng Pei.,Zhang Kaiqiang.,Dang Yu.,Bai Bo.,Guan Weisheng.,...&Bai, B .(2015).Adsorption of Organic Dyes by TiO2@Yeast-Carbon Composite Microspheres and Their In Situ Regeneration Evaluation.JOURNAL OF NANOMATERIALS. |
| MLA | Zheng Pei,et al."Adsorption of Organic Dyes by TiO2@Yeast-Carbon Composite Microspheres and Their In Situ Regeneration Evaluation".JOURNAL OF NANOMATERIALS (2015). |
入库方式： OAI收割
来源：西北高原生物研究所
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