| CS-Fe和CS-Fe/Ni的制备及其用于去除钴离子 |
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| 引用本文： | 翁秀兰,黄兰兰,钟燕华,林深,陈祖亮.CS-Fe和CS-Fe/Ni的制备及其用于去除钴离子[J].环境工程学报,2013,7(12):4761-4765. |
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| 作者姓名： | 翁秀兰 黄兰兰 钟燕华 林深 陈祖亮 |
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| 作者单位： | 1. 福建师范大学环境科学与工程学院, 福州 350007;2. 福建师范大学材料科学与 工程学院福建省高分子材料重点实验室, 福州 350007;1. 福建师范大学环境科学与工程学院, 福州 350007;1. 福建师范大学环境科学与工程学院, 福州 350007;3. 福建师范大学化学与化工学院, 福州 350007;1. 福建师范大学环境科学与工程学院, 福州 350007 |
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| 基金项目： | 福建师范大学闽江学者人才引进基金资助（200604）；福建省教育厅资助项目（JB12007） |
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| 摘 要： | 以氯化铁为铁源，硼氢化钠为还原剂，壳聚糖为稳定剂，采用液相还原法制备壳聚糖稳定纳米铁（CS-Fe）；并以氯化铁为铁源，硫酸镍为镍源，硼氢化钠为还原剂，壳聚糖为稳定剂，采用液相还原共沉淀法制备壳聚糖稳定纳米铁镍（CS-Fe/Ni）。通过SEM、EDS、XRD、FT-IR等表征手段，对所制备的CS-Fe和CS-Fe/Ni的形貌及微观结构进行表征，并以Co2+为目标去除物评价CS-Fe和CS-Fe/Ni的反应活性。初步研究表明，制成的CS-Fe含有单质纳米铁，颗粒多数以30~90 nm球形颗粒为主；而CS-Fe/Ni材料中含有纳米铁镍，颗粒多数以30~60 nm球形颗粒为主；在相同的实验条件下，反应60 min，CS-Fe/Ni对Co2+的去除率高达100%，但是CS-Fe仅为88%，即CS-Fe/Ni对Co2+的去除率比CS-Fe高。
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| 关 键 词： | 壳聚糖稳定纳米铁镍 去除率 还原剂 |
| 修稿时间： | 3/8/2013 12:00:00 AM |
Preparation of chitosan-stabilized Fe and Fe/Ni nanoparticles for removal of Co2+ in water |
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| Weng Xiulan,Huang Lanlan,Zhong Yanhu,Lin Shen and Chen Zuliang.Preparation of chitosan-stabilized Fe and Fe/Ni nanoparticles for removal of Co2+ in water[J].Techniques and Equipment for Environmental Pollution Control,2013,7(12):4761-4765. |
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| Authors: | Weng Xiulan Huang Lanlan Zhong Yanhu Lin Shen and Chen Zuliang |
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| Institution: | 1. College of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, China;2. Fujian Key Laboratory of Polymer Materials, College of Materials Science and Engineering, Fujian Normal University, Fuzhou 350007, China;1. College of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, China;1. College of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, China;3. College of Chemistry and Chemical Engineering, Fujian Normal University, Fuzhou 350007, China;1. College of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, China |
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| Abstract: | Chitosan-stabilized Fe nanoparticles (CS-Fe) was prepared by chemical reduction in aqueous solution starting from ferric chloride as the raw material,sodium borohydride as reducing agent and chitosan as stabilizing agent. Chitosan-stabilized Fe/Ni nanoparticles (CS-Fe/Ni) was prepared by chemical co-precipitation reduction in aqueous solution starting from ferric chloride and nickel sulfate as the raw materials,sodium borohydride as reducing agent and chitosan as stabilizing agent. In addition,SEM,EDS,XRD and FT-IR were employed to characterize CS-Fe and CS-Fe/Ni and the reaction activity of CS-Fe and CS-Fe/Ni was characterized using Co2+ as the model removal reaction. The results showed that most of the nano-iron in the CS-Fe is between 30 nm and 90 nm and most of the nano-iron and Ni in the CS-Fe/Ni is between 30 nm and 60 nm. 100% of Co2+ was removed using CS-Fe/Ni,while only 88% was removed by CS-Fe under the same experimental condition with 60 min. Therefore,the removal efficiency of Co2+ by CS-Fe/Ni was higher than that by CS-Fe. |
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| Keywords: | CS-Fe/Ni removal rate reducing agent |
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