CN115677955A - 多组分共价有机聚合物材料slel-2的合成方法及应用 - Google Patents
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Abstract
一种多组分共价有机聚合物材料SLEL‑2的合成方法及应用,该方法是:将苯‑1,3,5‑三酰肼溶于有机溶剂二甲基亚砜中,命名为A溶液;将联苯胺溶于A溶液中,命名为B溶液;将4‑正丁基苯胺溶于B溶液,命名为C溶液;将对苯二甲醛溶于C溶液,命名为D溶液。将D溶液放置在恒温油浴锅内,100℃加热反应30分钟,得到黄褐色聚合物。将得到的黄褐色聚合物置于透析袋中,以蒸馏水作为透析液,除去有机溶剂,2‑3天后,透析袋内出现明显分层后取出,得到获取物。将得到的获取物倒入烧杯中低温条件下冷冻,随后进行冷冻干燥,得到多组分共价有机聚合物材料SLEL‑2。本发明的合成方法快捷简便,制备成本低廉,具有分级多孔环境,化学稳定性高,水溶液分散性强。因此,本发明合成的SLEL‑2能够经济高效地去除水体中的左氧氟沙星。
Description
技术领域
本发明属于环境材料与纳米材料制备领域,特别涉及一种多组分共价有机聚合物材料SLEL-2的合成方法及多组分共价有机聚合物材料SLEL-2在去除水体中左氧氟沙星中的应用。
背景技术
左氧氟沙星(LEV)作为典型的第三代喹诺酮类抗生素具有良好的广谱抗菌作用,因而被大规模应用于医疗、农业、养殖业等领域,这使得大量的LEV会以原形式或者代谢产物的形式排放至自然水体中。由于其在环境中具有溶解度高、难生物降解及易于富集的特性,会对水体和土壤中的动植物产生毒害作用,引发有机污染;其次,其可以通过食物链返回人体,对人体健康造成不可估量的危害;再次,其会诱导抗性基因的大量产生并且在微生物菌群中广泛传播,引发“超级细菌”风险。故而,去除环境水体中的LEV迫在眉睫。
共价有机聚合物(COPs)是以轻元素如C、H、N、O、F等通过强共价键连接而构建,具有比表面积大,孔径可调节,易于官能化以及优良的化学和热稳定性的特点,是近年发展而来的一类新型多孔共价有机材料,广泛应用于环境中污染物的去除。但是传统COPs通常采用双组分缩聚系统构建而成,这使得传统COPs存在结构单调、功能单一等不足之处,并且COPs通常在水相体系中均匀分散困难,极大地限制了其在多孔介质中的实际应用性能。因此开发一种分散性好的多组分新型COPs高效去除LEV是十分有必要的。
发明内容
本发明的目的在于提供一种多组分共价有机聚合物材料SLEL-2的合成方法及多组分共价有机聚合物材料SLEL-2在去除水体中左氧氟沙星中的应用。
一种多组分共价有机聚合物材料SLEL-2的合成方法,包括以下步骤:
步骤一:将苯-1,3,5-三酰肼溶于有机溶剂二甲基亚砜中,保持其浓度为0.04mol/L,该混合溶液命名为A溶液;
步骤二:将联苯胺溶于A溶液中,保持其浓度为0.06mol/L,该混合溶液命名为B溶液;
步骤三:将4-正丁基苯胺溶于B溶液,保持其浓度为0.012mol/L,该混合溶液命名为C溶液;
步骤四:将对苯二甲醛溶于C溶液,保持其浓度为0.12mol/L,该混合溶液命名为D溶液;
D溶液中摩尔比为:苯-1,3,5-三酰肼:联苯胺:4-正丁基苯胺:对苯二甲醛=2:3:0.6:6;
步骤五:将上述D溶液放置在恒温油浴锅内,100℃加热反应30分钟,得到黄褐色聚合物;
步骤六:将步骤五得到的黄褐色聚合物置于透析袋中,以蒸馏水作为透析液,除去有机溶剂,2-3天后,透析袋内出现明显分层后取出,得到获取物;
步骤七:将步骤六得到的获取物倒入烧杯中低温条件下冷冻,随后进行冷冻干燥,得到多组分共价有机聚合物材料SLEL-2。
本发明还提供了多组分共价有机聚合物材料SLEL-2在去除水体中左氧氟沙星中的应用,其中SLEL-2在水体中用量为1.0g/L,吸附温度为293K,反应24小时。
本发明的有益效果在于:
本发明的多组分共价有机聚合物材料SLEL-2合成方法快捷简便,制备成本低廉,具有分级多孔环境,化学稳定性高,水溶液分散性强。因此,本发明合成的SLEL-2能够经济高效地去除水体中的左氧氟沙星。
附图说明
图1是本发明合成的SLEL-2的傅里叶变换-红外光谱图。
图2是本发明合成的SLEL-2在氮气气氛下的热重曲线。
图3是本发明合成的SLEL-2的氮气吸脱附曲线。
图4是本发明合成的SLEL-2对水体中左氧氟沙星的吸附效果图。
具体实施方式
合成SLEL-2所使用的原料均为商业可得产品,含左氧氟沙星模拟料液为实验室自配,所用化学试剂为市售分析级商品。
实施例1:
一种多组分共价有机聚合物材料SLEL-2的合成方法,包括以下步骤:
步骤一:将苯-1,3,5-三酰肼溶于有机溶剂二甲基亚砜中,保持其浓度为0.04mol/L,该混合溶液命名为A溶液;
步骤二:将联苯胺溶于A溶液中,保持其浓度为0.06mol/L,该混合溶液命名为B溶液;
步骤三:将4-正丁基苯胺溶于B溶液,保持其浓度为0.012mol/L,该混合溶液命名为C溶液;
步骤四:将对苯二甲醛溶于C溶液,保持其浓度为0.12mol/L,该混合溶液命名为D溶液;
D溶液中摩尔比为:苯-1,3,5-三酰肼:联苯胺:4-正丁基苯胺:对苯二甲醛=2:3:0.6:6;
步骤五:将上述D溶液放置在恒温油浴锅内,100℃加热反应30分钟,得到黄褐色聚合物;
步骤六:将步骤五得到的黄褐色聚合物置于透析袋中,以蒸馏水作为透析液,除去有机溶剂,2-3天后,透析袋内出现明显分层后取出,得到获取物;
步骤七:将步骤六得到的获取物倒入烧杯中低温条件下冷冻,随后进行冷冻干燥,得到多组分共价有机聚合物材料SLEL-2。
实施例2:
SLEL-2作为吸附剂去除水体中左氧氟沙星的应用,其应用方法包括以下步骤:
步骤一:配置10mg/L、20mg/L、50mg/L、80mg/L、140mg/L、250mg/L的LEV溶液,以计量比为1.0g/L分别加入本发明合成的SLEL-2,迅速放置于恒温水浴振荡器中,于293K下震荡吸附24h。
步骤二:吸取步骤一中的上层清液,用0.22μm滤头过滤后取澄清液,用紫外分光光度计在波长287nm下检测左氧氟沙星剩余浓度。
步骤三:根据左氧氟沙星的初始浓度和平衡浓度,计算本发明合成的SLEL-2对不同浓度的左氧氟沙星平衡吸附量,此外利用Langmuir等温线模型计算,本发明合成的SLEL-2对左氧氟沙星的最大吸附容量为46.69mg/g。
本发明合成的SLEL-2的傅里叶变换-红外光谱图如图1所示。
本发明合成的SLEL-2在氮气气氛下的热重曲线如图2所示。
本发明合成的SLEL-2的氮气吸脱附曲线如图3所示。
本发明合成的SLEL-2对水体中左氧氟沙星的吸附效果图如图4所示。
Claims (3)
1.一种多组分共价有机聚合物材料SLEL-2的合成方法及,其特征在于,包括以下步骤:
步骤一:将苯-1,3,5-三酰肼溶于有机溶剂二甲基亚砜中,保持其浓度为0.04mol/L,该混合溶液命名为A溶液;
步骤二:将联苯胺溶于A溶液中,保持其浓度为0.06mol/L,该混合溶液命名为B溶液;
步骤三:将4-正丁基苯胺溶于B溶液,保持其浓度为0.012mol/L,该混合溶液命名为C溶液;
步骤四:将对苯二甲醛溶于C溶液,保持其浓度为0.12mol/L,该混合溶液命名为D溶液;
D溶液中摩尔比为:苯-1,3,5-三酰肼:联苯胺:4-正丁基苯胺:对苯二甲醛=2:3:0.6:6;
步骤五:将上述D溶液放置在恒温油浴锅内,100℃加热反应30分钟,得到黄褐色聚合物;
步骤六:将步骤五得到的黄褐色聚合物置于透析袋中,以蒸馏水作为透析液,除去有机溶剂,2-3天后,透析袋内出现明显分层后取出,得到获取物;
步骤七:将步骤六得到的获取物倒入烧杯中低温条件下冷冻,随后进行冷冻干燥,得到多组分共价有机聚合物材料SLEL-2。
2.一种多组分共价有机聚合物材料SLEL-2在去除水体中左氧氟沙星中的应用。
3.根据权利要求2所述的一种多组分共价有机聚合物材料SLEL-2在去除水体中左氧氟沙星中的应用的应用,其特征在于:将多组分共价有机聚合
物材料SLEL-2与不同浓度的左氧氟沙星溶液混合,SLEL-2用量为1.0g/L,
吸附温度为293K,反应24小时,完成对水体中左氧氟沙星的去除。
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KR20140115616A (ko) * | 2013-03-21 | 2014-10-01 | 주식회사 인실리코텍 | 포르피린계 공유결합성 유기 다면체 및 이를 포함하는 결정 구조체 |
CN114773556A (zh) * | 2020-12-30 | 2022-07-22 | 南开大学 | 一种共价有机框架材料的绿色固相合成方法 |
CN114853113A (zh) * | 2022-04-24 | 2022-08-05 | 湖南大学 | 一种利用三噻吩基共价有机骨架光催化剂降解水体中抗生素的方法 |
CN115193417A (zh) * | 2022-06-08 | 2022-10-18 | 苏州科技大学 | 一种片层状共价有机框架气凝胶及其制备方法与应用 |
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KR20140115616A (ko) * | 2013-03-21 | 2014-10-01 | 주식회사 인실리코텍 | 포르피린계 공유결합성 유기 다면체 및 이를 포함하는 결정 구조체 |
CN114773556A (zh) * | 2020-12-30 | 2022-07-22 | 南开大学 | 一种共价有机框架材料的绿色固相合成方法 |
CN114853113A (zh) * | 2022-04-24 | 2022-08-05 | 湖南大学 | 一种利用三噻吩基共价有机骨架光催化剂降解水体中抗生素的方法 |
CN115193417A (zh) * | 2022-06-08 | 2022-10-18 | 苏州科技大学 | 一种片层状共价有机框架气凝胶及其制备方法与应用 |
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