Influence of solution chemistry on heavy metals removal by bioadsorbent tea waste modified by poly (vinyl alcohol) (SCI)
文献类型：期刊论文
| 作者 | Zhang Y.; Li X. L.; Li Y. F. |
| 刊名 | Desalination and Water Treatment
 |
| 出版日期 | 2015 |
| 卷号 | 53期号:8页码:2134-2143 |
| 英文摘要 | In this study, the macroporous spherical composite biomaterials, Poly(vinyl alcohol)/teawaste (PVA/TW), were prepared and investigated for their potential to remove Pb2+, Hg2+, and Cu2+ from aqueous solution. Investigations showed that adsorption capacity of Hg2+ by PVA/TW bead was much higher than that of Pb2+ and Cu2+, while adsorption rate of Pb2+ was fastest. The experimental data obtained for Pb2+-PVA/TW, Hg2+-PVA/TW, and Cu2+-PVA/TW at different solution temperatures indicate a monolayer type biosorption, which explains why the Langmuir isotherm accurately represents the experimental data obtained in this study. The Langmuir maximum biosorption capacities of Pb2+, Hg2+, and Cu2+ onto PVA/TW were 81.56, 175.68, and 49.08mg/g at 298K, respectively, which is comparatively superior to most other low-cost biomaterials. Fourier transform infrared spectroscopic analysis of the metal-loaded biosorbents confirmed the participation of -COOH, -NH2, and O-CH3 groups in the complexation of Pb2+, Hg2+, and Cu2+. Thermodynamic parameters demonstrated that the biosorption of Pb2+ onto PVA/TW was endothermic, spontaneous, and feasible at 288-318K. The results evidently indicated that PVA/TW would be suitable biosorbents for Pb2+, Hg2+, and Cu2+ in wastewater under certain conditions. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.casnw.net/handle/362004/27402]  |
| 专题 | 寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang Y.,Li X. L.,Li Y. F.. Influence of solution chemistry on heavy metals removal by bioadsorbent tea waste modified by poly (vinyl alcohol) (SCI)[J]. Desalination and Water Treatment,2015,53(8):2134-2143. |
| APA | Zhang Y.,Li X. L.,&Li Y. F..(2015).Influence of solution chemistry on heavy metals removal by bioadsorbent tea waste modified by poly (vinyl alcohol) (SCI).Desalination and Water Treatment,53(8),2134-2143. |
| MLA | Zhang Y.,et al."Influence of solution chemistry on heavy metals removal by bioadsorbent tea waste modified by poly (vinyl alcohol) (SCI)".Desalination and Water Treatment 53.8(2015):2134-2143. |
入库方式： OAI收割
来源：寒区旱区环境与工程研究所
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