Phenolation of lignin for polycatecholamines to remove Cr (VI)
文献类型：期刊论文
| 作者 | Zhang, Zongying; Liu, Qinze; Gao, Tingting; Qiao, Congde; Yao, Jinshui; Zhang, Changbin |
| 刊名 | JOURNAL OF WATER PROCESS ENGINEERING
 |
| 出版日期 | 2022 |
| 卷号 | 50页码:103334-1-13 |
| 关键词 | Phenolation Alkaline lignin Polycatecholamine Pyrogallol Chromium |
| ISSN号 | 2214-7144 |
| 英文摘要 | Alkaline lignin, a by-product of the paper-pulping process, can undergo phenolation by pyrogallol in the presence of acetone and sulfuric acid to prepare phenolated-alkaline-lignin (PAL). PAL can be further reacted with tet-raethylenepentamine (TEPA) to prepare lignin-based catecholamine (PAL-TEPA), which exhibits excellent ability to remove hazardous Cr (VI) from simulated wastewater. In this study, PAL and PAL-TEPA were systematically investigated by SEM, FT-IR, 1H NMR, TGA, and XPS. The conditions for the preparation of PAL and the various variables affecting the adsorption behavior of PAL-TEPA were optimized sequentially. The adsorption process followed the pseudo-second-order model and fitted to the Langmuir isotherm equation. The maximum adsorp-tion amount reached 600 mg g-1 (R = 75 %) under optimized conditions (pH = 2.0, C0 = 200 mg L-1, V = 100 mL, T = 30 degrees C, dos. = 25 mg, t = 24 h). Toxic Cr (VI) ions were successfully converted to harmless Cr (III) ions and removed by PAL-TEPA adsorbent. This approach opens new avenues for the utilization of lignin and new kinds of adsorbent for Cr (VI) removal. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/48456]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 作者单位 | 1.Qilu University of Technology 2.Research Center for Eco-Environmental Sciences (RCEES) 3.Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Zhang, Zongying,Liu, Qinze,Gao, Tingting,et al. Phenolation of lignin for polycatecholamines to remove Cr (VI)[J]. JOURNAL OF WATER PROCESS ENGINEERING,2022,50:103334-1-13. |
| APA | Zhang, Zongying,Liu, Qinze,Gao, Tingting,Qiao, Congde,Yao, Jinshui,&Zhang, Changbin.(2022).Phenolation of lignin for polycatecholamines to remove Cr (VI).JOURNAL OF WATER PROCESS ENGINEERING,50,103334-1-13. |
| MLA | Zhang, Zongying,et al."Phenolation of lignin for polycatecholamines to remove Cr (VI)".JOURNAL OF WATER PROCESS ENGINEERING 50(2022):103334-1-13. |
入库方式： OAI收割
来源：生态环境研究中心
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