CN1940170A - 一种环糊精-酞菁双重模拟酶功能纤维的制备方法 - Google Patents
一种环糊精-酞菁双重模拟酶功能纤维的制备方法 Download PDFInfo
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Abstract
一种环糊精-酞菁双重模拟酶功能纤维的制备方法,其特征是将环糊精和金属酞菁-四羧基钴酞菁接枝到纤维上,制备具有包络和催化双重功能的环糊精-酞菁双重模拟酶功能纤维,用做环境净化材料。同现有技术比较,本发明的优点是:1)该功能纤维上含有环糊精和钴酞菁,环糊精具有的独特疏水空腔,可以包络吸收一些环境中的非极性有机挥发污染物,四羧基钴酞菁可以催化氧化硫醇等有害物质;2)可以将环糊精-酞菁双重模拟酶功能纤维加以编织、裁剪,制成各种形态,使用、回收方便;3)环糊精、金属酞菁以共价键结合的形式接到纤维素纤维上,可以解决环糊精、金属酞菁作为仿酶催化剂使用时的循环利用以及和产物分离的问题。
Description
技术领域
本发明涉及一种环糊精及其衍生物,特别涉及一种环糊精-酞菁双重模拟酶功能纤维的制备方法。
背景技术
酶催化与普通化学催化剂相比,具有高效性、专一性和反应条件温和等优点,而天然酶对环境过于敏感,对操作条件要求苛刻,易失活,价格昂贵,于是人们试图保持天然酶的优点,改变其易变性失活的缺点,开始进行酶功能的模拟研究。目前用于构建模拟酶的这类酶模型分子有环糊精、冠醚、穴醚、笼醚、卟啉等。环糊精是一个比较理想的酶模型,环糊精催化的特点是:参与反应的底物分子先被环糊精分子包接,再与其发生反应,与酶促反应十分相似。酞菁是一个平面大环化合物,环内有一空穴,可以容纳铁、铜、钴、铝、镍、钙、钠、镁、锌等种多金属元素,含有金属元素的金属酞菁具有与金属卟啉相似的结构,研究表明,金属酞菁能催化许多有机反应,特别是能有效活化氧分子,并在室温条件下催化有机物的自动氧化,因此金属酞菁可以作为模拟生物酶的模型,四羧基钴酞菁是其中之一,研究证明四羧基钴酞菁可以催化氧化硫醇等有害物质。
关于环糊精、金属酞菁作为仿酶催化剂已有不少研究,但将环糊精和金属酞菁接枝到纤维上,制备具有包络和催化双重功能的环糊精-酞菁双重模拟酶功能纤维,用做环境净化材料则属于正在研究的课题。
发明内容
本发明的目的是提供一种环糊精-酞菁双重模拟酶功能纤维的制备方法,将环糊精和金属酞菁——四羧基钴酞菁接枝到纤维上,制备具有包络和催化双重功能的环糊精-酞菁双重模拟酶功能纤维。该功能纤维具有环糊精独特的疏水空腔,可以包络吸收一些环境中的非极性有机挥发污染物,四羧基钴酞菁可以催化氧化硫醇等有害物质,可以用做环境净化材料。
一种环糊精-酞菁双重模拟酶功能纤维的制备方法,其特征在于采用下列步骤:
A)将纤维素纤维以1∶50~100的重量比放入5%Na2CO3溶液中,加热至80~100℃,处理1~3h,将处理后的纤维洗净、烘干,以1∶20~50的重量比放入0.1%的NaOH溶液中,溶胀0.5~3h;
B)将溶胀后的纤维素纤维以1∶50~100的重量比放入含有8%的环氧氯丙烷、5%的NaOH的水溶液中,在40~60℃下搅拌、振荡处理3~5h,然后用蒸馏水洗涤至中性,抽滤、晾干,得到环氧化纤维素纤维;
C)以2∶98的重量比将四羧基钴酞菁加入水中、溶解,得到含钴离子酞菁的水溶液,并调节PH至3.5~4.5,环氧化纤维素纤维按1∶10~100的重量比加入到上述酞菁水溶液中,在80~95℃下搅拌、振荡处理2~8h后取出,洗净、烘干,得到含钴离子酞菁的模拟酶功能纤维;
D)将酞菁模拟酶功能纤维按1∶10~100的重量比加入到溶解环糊精的30%NaOH溶液中,在30~80℃下搅拌、振荡处理0.5~5h,洗净、烘干,得到含钴离子的环糊精-酞菁双重模拟酶功能纤维。
环糊精采用α-环糊精、β-环糊精、γ-环糊精中的任意一种,或者其混合物。
同现有技术比较,本发明具有如下突出的优点:1)该功能纤维上含有环糊精和钴酞菁,环糊精具有的独特疏水空腔,可以包络吸收一些环境中的非极性有机挥发污染物,四羧基钴酞菁可以催化氧化硫醇等有害物质;2)可以将环糊精-酞菁双重模拟酶功能纤维加以编织、裁剪,制成各种形态,使用方便;3)环糊精、金属酞菁以共价键结合的形式接到纤维素纤维上,可以解决环糊精、酞菁作为仿酶催化剂使用时的循环使用以及和产物分离的问题。
具体实施方式
实施例1:
一种环糊精-酞菁双重模拟酶功能纤维的制备方法,其特征在于采用下列步骤:
A)将纤维素纤维以1∶50的重量比放入5%的Na2CO3溶液中,加热至100℃,处理1h,将处理后的纤维洗净、烘干,以1∶20的重量比放入0.1%的NaOH溶液中,溶胀0.5h;
B)将溶胀后的纤维素纤维以1∶50的重量比放入含有8%的环氧氯丙烷、5%的NaOH的水溶液中,在60℃下搅拌、振荡处理3h,然后用蒸馏水洗涤至中性,抽滤、晾干,得到环氧化纤维素纤维;
C)以2∶98的重量比将四羧基钴酞菁加入水中、溶解,得到含钴离子酞菁的水溶液,并调节PH至4.5,环氧化纤维素纤维按1∶10的重量比加入到上述酞菁水溶液中,在80℃下搅拌、振荡处理2h后取出,洗净、烘干,得到含钴离子酞菁的模拟酶功能纤维;
D)将酞菁模拟酶功能纤维按1∶10的重量比加入到溶解环糊精的30%NaOH溶液中,在30℃下搅拌、振荡处理0.5h,洗净、烘干,得到含钴离子的环糊精-酞菁双重模拟酶功能纤维。
环糊精采用α-环糊精。
实施例2:
一种环糊精-酞菁双重模拟酶功能纤维的制备方法,其特征在于采用下列步骤:
A)将纤维素纤维以1∶100的重量比放入5%的Na2CO3溶液中,加热至80℃,处理3h,将处理后的纤维洗净、烘干,以1∶50的重量比放入0.1%的NaOH溶液中,溶胀3h;
B)将溶胀后的纤维素纤维以1∶100的重量比放入含有8%的环氧氯丙烷、5%的NaOH的水溶液中,在40℃下搅拌、振荡处理5h,然后用蒸馏水洗涤至中性,抽滤、晾干,得到环氧化纤维素纤维;
C)以2∶98的重量比将四羧基钴酞菁加入水中、溶解,得到含钴离子酞菁的水溶液,并调节PH至3.5,环氧化纤维素纤维按1∶100的重量比加入到上述酞菁水溶液中,在95℃下搅拌、振荡处理8h后取出,洗净、烘干,得到含钴离子酞菁的模拟酶功能纤维;
D)将酞菁模拟酶功能纤维按1∶100的重量比加入到溶解环糊精的30%NaOH溶液中,在80℃下搅拌、振荡处理5h,洗净、烘干,得到含钴离子的环糊精-酞菁双重模拟酶功能纤维。
环糊精采用β-环糊精。
实施例3:
一种环糊精-酞菁双重模拟酶功能纤维的制备方法,其特征在于采用下列步骤:
A)将纤维素纤维以1∶75的重量比放入5%Na2CO3溶液中,加热至90℃,处理2h,将处理后的纤维洗净、烘干,以1∶30的重量比放入0.1%的NaOH溶液中,溶胀2h;
B)将溶胀后的纤维素纤维以1∶75的重量比放入含有8%的环氧氯丙烷、5%的NaOH的水溶液中,在50℃下搅拌、振荡处理4h,然后用蒸馏水洗涤至中性,抽滤、晾干,得到环氧化纤维素纤维;
C)以2∶98的重量比将四羧基钴酞菁加入水中、溶解,得到含钴离子酞菁的水溶液,并调节PH至4,环氧化纤维素纤维按1∶50的重量比加入到上述酞菁水溶液中,在90℃下搅拌、振荡处理5h后取出,洗净、烘干,得到含钴离子酞菁的模拟酶功能纤维;
D)将酞菁模拟酶功能纤维按1∶50的重量比加入到溶解环糊精的30%NaOH溶液中,在55℃下搅拌、振荡处理3h,洗净、烘干,得到含钴离子的环糊精-酞菁双重模拟酶功能纤维。
环糊精采用γ-环糊精。
Claims (2)
1.一种环糊精-酞菁双重模拟酶功能纤维的制备方法,其特征在于采用下列步骤:
A)将纤维素纤维以1∶50~100的重量比放入5%Na2CO3溶液中,加热至80~100℃,处理1~3h,将处理后的纤维洗净、烘干,以1∶20~50的重量比放入0.1%的NaOH溶液中,溶胀0.5~3h;
B)将溶胀后的纤维素纤维以1∶50~100的重量比放入含有8%的环氧氯丙烷、5%的NaOH的水溶液中,在40~60℃下搅拌、振荡处理3~5h,然后用蒸馏水洗涤至中性,抽滤、晾干,得到环氧化纤维素纤维;
C)以2∶98的重量比将四羧基钴酞菁加入水中、溶解,得到含钴离子酞菁的水溶液,并调节PH至3.5~4.5,环氧化纤维素纤维按1∶10~100的重量比加入到上述酞菁水溶液中,在80~95℃下搅拌、振荡处理2~8h后取出,洗净、烘干,得到含钴离子酞菁的模拟酶功能纤维;
D)将酞菁模拟酶功能纤维按1∶10~100的重量比加入到溶解环糊精的30%NaOH溶液中,在30~80℃下搅拌、振荡处理0.5~5h,洗净、烘干,得到含钴离子的环糊精-酞菁双重模拟酶功能纤维。
2.根据权利要求1所述的方法,其特征在于:环糊精采用α-环糊精、β-环糊精、γ-环糊精中的任意一种,或者其混合物。
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CN113522360A (zh) * | 2021-07-23 | 2021-10-22 | 曲阜师范大学 | 一种Ag-CD@GO三元纳米模拟酶及其制备方法与应用 |
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CN113522360A (zh) * | 2021-07-23 | 2021-10-22 | 曲阜师范大学 | 一种Ag-CD@GO三元纳米模拟酶及其制备方法与应用 |
CN113522360B (zh) * | 2021-07-23 | 2023-09-29 | 曲阜师范大学 | 一种Ag-CD@GO三元纳米模拟酶及其制备方法与应用 |
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