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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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静电纺苯乙烯-甲基丙烯酸共聚物纳米纤维膜固载过氧化物酶及处理多酚性能研究
DOI: 10.3724/SP.J.1105.2013.13107, PP. 1508-1513
Keywords: 无皂乳液聚合,静电纺丝,纳米纤维,辣根过氧化物酶,固载化,邻甲氧基苯酚
Abstract:
首先采用无皂乳液聚合法获得了含有羧基官能团的聚苯乙烯-甲基丙烯酸共聚物（poly（styrene-co-methacrylicacid），PSMAI），然后利用静电纺丝技术制备了PSMAI纳米纤维.并以酰胺结合的方式，在PSMAI纤维表面固载辣根过氧化物酶（HRP）.采用SEM、FTIR等手段表征了PSMAI纤维的表面微观形貌和化学特性.研究了HRP在纤维表面的固载时间与酶活性的定量关系，对比分析了酶固载前后的热稳定性，存储稳定性和PH稳定性.并以邻甲氧基苯酚作为水体污染的模型物，考察了固载HRP对邻甲氧基苯酚的去除效率.结果表明固载后的HRP相比游离HRP环境适应性能有较大提升.固载化HRP对邻甲氧基苯酚（OMP）催化反应120min去除效率达80.2%，明显高于自由HRP去除效率（50%），有望应用于酚类水体污染的治理.
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