發(fā)布時(shí)間：2018-01-10 18:13

  本文關(guān)鍵詞：固定化胺密度對(duì)磁性PGMA-乙二胺微球吸附鎘的影響　出處：《光譜學(xué)與光譜分析》2016年S1期 　論文類型：期刊論文

  更多相關(guān)文章： PGMA 鎘 磁性 紅外 乙二胺

【摘要】：大量劇毒、致癌的含鎘工業(yè)廢水的超標(biāo)排放,給人類健康和環(huán)境帶來了極大的危害,吸附法作為處理含鎘廢水的有效方法之一,具有操作方便,設(shè)備簡(jiǎn)單,吸附劑可循環(huán)使用,金屬離子可回收等優(yōu)點(diǎn)[1]。本文中,合成了一系列不同濃度乙二胺(EDA)修飾的磁性聚甲基丙烯酸縮水甘油酯微球(mPGMA-EDA)。合成的微球經(jīng)FTIR等手段進(jìn)行表征并用于吸附水中的鎘離子,同時(shí)用FTIR研究吸附鎘離子前后微球的紅外譜圖變化,發(fā)現(xiàn)mPGMA-EDA主要通過胺基和羥基來吸附鎘離子。
[Abstract]:A large number of highly toxic, carcinogenic cadmium containing industrial wastewater discharge, has brought great harm to human health and the environment. As one of the effective methods to treat cadmium wastewater, adsorption method has the advantages of convenient operation and simple equipment. The advantages of adsorbent can be recycled, metal ions can be recovered, etc. [1]. In this paper. A series of magnetic polyglycidyl methacrylate microspheres (mPGMA-EDA-EDAs) modified with different concentrations of ethylenediamine were synthesized. The synthesized microspheres were characterized by FTIR and used to adsorb cadmium ions in water. At the same time, FTIR was used to study the changes of infrared spectra of microspheres before and after cadmium adsorption. It was found that mPGMA-EDA adsorbs cadmium ion mainly by amine and hydroxyl groups.
【作者單位】： 中國(guó)科學(xué)院過程工程研究所;中國(guó)科學(xué)院青島生物能源與過程研究所;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(21106162)資助
【分類號(hào)】：O647.3
【正文快照】： 2.中國(guó)科學(xué)院青島生物能源與過程研究所,山東青島266101PGMA微球采用分散聚合法制備得到[2],合成過程見Scheme 1。首先通過分散聚合法合成PGMA微球。然后通過滲透沉積法對(duì)無磁性的PGMA微球賦予磁性。接下來利用乙二胺在微球表面修飾上氨基,2g磁性PGMA微球與50mL乙二胺水溶液在，

本文編號(hào)：1406295