| 第 53 卷第 1 期 |  | Vol. 53 No. 1 | | 2023 年 2 月 | Feb 2023 |
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所屬欄目：功能材料
硫代酰胺螯合樹(shù)脂的吸附特性與電鍍廢水銀回收 |
| 王銘劍1，王康杰1，2，劉耀馳1*
（1. 中南大學(xué) 化學(xué)化工學(xué)院，湖南 長(cháng)沙 410083；2. 中芯國際集成電路制造有限公司，北京 100176） |
| 摘 要：電鍍廢水銀吸附回收受共存離子及有機物影響�；诎坊郾揭蚁ˋPS）制備了一種胺基和芳環(huán)協(xié)同的硫代酰胺螯合樹(shù)脂ATMCR，在銀吸附特性研究的基礎上，將其應用于電鍍廢水銀回收。采用FT-IR、SEM和BET對合成樹(shù)脂進(jìn)行了表征。ATMCR對Ag（I）的吸附屬于自發(fā)、吸熱過(guò)程，符合擬二級動(dòng)力學(xué)模型，吸附pH為1~2，318 K時(shí)ATMCR的吸附容量達177.6 mg/g。高、低兩種濃度電鍍廢水的處理實(shí)踐表明，在Cu、Ni和COD共存時(shí)，ATMCR的Ag回收率>98%，具備較好的工業(yè)應用前景。 |
| 關(guān)鍵詞：硫代酰胺螯合樹(shù)脂；銀；吸附特性；電鍍廢水 |
| 中圖分類(lèi)號：TQ424 文獻標識碼：A 文章編號：1009-9212（2023）01-0060-07 |
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| Adsorption Characteristics of Thioamide Chelating Resin and Its Silver Recovery from Electroplating Wastewater |
| WANG Ming-jian1, WANG Kang-jie1,2, LIU Yao-chi1*
(1. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; 2. SMIC International Integrated Circuit Manufacturing Co., Ltd., Beijing 100176, China) |
| Abstract：The adsorption and recovery of silver from electroplating wastewater are affected by coexisting ions and organic materials. A thioamide chelating resin ATMCR based on amine polystyrene (APS) was prepared. Based on its silver adsorption characteristics, ATMCR was applied in the recovery of silver from electroplating wastewater. The synthesized resin was characterized using FT-IR, SEM and BET. The adsorption of Ag(I) by ATMCR was a spontaneous and endothermic process, and conformed to the pseudo-second-order kinetic model. Its adsorption capacity reached 177.6 mg/g at 318 K, and the optimal pH range was between 1 and 2. ATMCR was applied to treat electroplating wastewater with high and low concentration. Its recovery rates of Ag were higher than 98% under the coexistence of Cu, Ni and COD. This material has shown a good industrial application prospect. |
| Key words：thioamide chelating resin; silver; adsorption characteristics; electroplating wastewater |
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基金項目：湖南省重點(diǎn)領(lǐng)域研發(fā)計劃（2019KW2031）。
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作者簡(jiǎn)介：王銘劍（1978—），男，湖南邵陽(yáng)人，高級工程師，博士研究生，研究方向：材料化學(xué)工程（E-mail：13924217759@126.com）。
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聯(lián) 系 人：劉耀馳，教授，博士，研究方向：功能材料、環(huán)境化學(xué)（E-mail：liuyaochi72@163.com）。
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收稿日期：2022-09-07
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