在纳米通道反应器中促进涉及气体的反应,并控制气体-固体-液体接口
Li Mi1, Jiachao Yu1, Fei He1
1Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University , Nanjing 211189, China.
Journal of the American Chemical Society
|July 1, 2017
概括
这项研究引入了一种新的纳米通道反应器, 增强了气液反应. 一个疏水界面通过改善气体基质的接入,显著提高了酶催化效率.
科学领域:
- 材料科学
- 化学工程
- 生物技术
背景情况:
- 在水溶液中的低气溶性限制了反应动力学.
- 有效的气体基质反应需要优化的接口.
- 纳米通道反应器提供了增强界面反应的潜力.
研究的目的:
- 开发一种纳米通道反应器,用于气体基板反应.
- 调查接口湿度对酶反应效率的影响.
- 提高利用气体基质的酶的催化效率.
主要方法:
- 一种多孔氧化 (PAA) 纳米通道膜的制造.
- 对受控气体-液体-固体接口的PAA湿度的修改
- 在纳米通道内固定葡萄糖氧化酶 (GOx).
- 纳米通道膜与气体氧和水性葡萄糖溶液的直接接触.
主要成果:
- 氧 (O2) 通过气相中的纳米通道直接参与了酶反应.
- 由于GOx结构重组和气体粘附,疏水界面显示出更高的催化效率.
- 与水溶液中的自由酶相比,固定GOx的催化效率提高了80倍.
结论:
- 开发的纳米通道反应器具有可控湿度,有效地克服了气体溶解度的限制.
- 疏水界面对于增强气基酶反应至关重要.
- 这种三相接口策略广泛适用于将酶或催化剂与气体基板固定起来,以获得高效率.
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