| 纤维素基磁性聚偕胺肟树脂研究：HAuCl4在树脂上的吸附与还原 |
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| 引用本文： | 杨超雄 吴锦远. 纤维素基磁性聚偕胺肟树脂研究：HAuCl4在树脂上的吸附与还原[J]. 功能高分子学报, 1997, 10(3): 307-312 |
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| 作者姓名： | 杨超雄 吴锦远 |
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| 作者单位： | 中国科学院广州化学研究所 |
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| 摘 要： | 研究了ＨＡｕＣｌ４在碱式纤维素基磁性聚偕胺肟树脂上的吸附动力学。吸附容量与吸附时间关系在初吸附的３０ｍｉｎ内可表示为Ｑ＝０．６４ｔ＾０．４。粒内扩散是吸附速度的控制阶段。在吸附过程中，同时发生氧化还原反应，Ａｕ（０）以不同聚集态附着在树脂表面。
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| 关 键 词： | 纤维素基 磁性树脂 聚偕胺肟 氯金酸 吸附动力学 |
Studies of Cellulose -Based Magnetic Polyamidoxime Adsorbents Adsorption and Reduetion of HAuCl 4 on BMAO |
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| Yang Chaoxiong Wu Jinyuan. Studies of Cellulose -Based Magnetic Polyamidoxime Adsorbents Adsorption and Reduetion of HAuCl 4 on BMAO[J]. Journal of Functional Polymers, 1997, 10(3): 307-312 |
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| Authors: | Yang Chaoxiong Wu Jinyuan |
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| Abstract: | The adsorption kinetics of alkaline cellulose-based magnetie polyamidoxime adsorbent (BMAO) for HAuCl 4 was investigated. The relation between the adsorption capacity and the contact time within the initial 30 minutes may be expressed as Q=0.64t 0.4 . The rate-determining step of adsorption was found to be intra-particle diffusion. The redox reaction takes place during the adsorption process and the obtained Au(0)with a variety of aggregated structure adhere on the adsorbents. |
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| Keywords: | Cellulose-Based adsorbent Magnetic resin Polyamidoxime Chloroauric acid Adsorption kineties Redox reaction |
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