التفاصيل البيبلوغرافية
| العنوان: |
The Brønsted-Lewis Acid Sites in Metal–Organic Framework Biomimetic Nanozyme for Cooperatively Enhancing the Hydrolysis of Lactose. |
| المؤلفون: |
Yi, Chenshu, Xing, Keyu, Xu, Keyu, Yao, Li, Jia, Pei, Wu, Hao, Wen, Li, Cheng, Yunhui, Xu, Zhou |
| المصدر: |
Catalysis Letters; Sep2024, Vol. 154 Issue 9, p5124-5133, 10p |
| مصطلحات موضوعية: |
BRONSTED acids, BIOMIMETICS, LEWIS acids, SYNTHETIC enzymes, CATALYTIC activity, DRIED milk |
| مستخلص: |
In order to solve the problem of the low efficiency of lactose hydrolysis using traditional metal–organic frameworks (MOFs) nanozymes, Brønsted acid active sites (-COOH) were firstly introduced into Fe-MIL-101 nanozymes to enhance the lactose hydrolysis activity of MOFs bearing Lewis acid sites in this study. When compared to Fe-MIL-101, Fe-MIL-101-COOH exhibited improved catalytic performance, showing a lactose conversion rate of up to 78%. Our experiments suggested that this enhancement could be attributed to the synergistic effect between the Brønsted acidic COOH groups and Lewis acidic Fe clusters. Furthermore, Fe-MIL-101-COOH displayed good stability and reusability with no significant loss in catalytic activity observed after at least five consecutive cycles. Our results showed that the activity of Fe-MIL-101-COOH with Brønsted acid active sites was better than that of Fe-MIL-101. Fe-MIL-101-COOH could be applied to the hydrolysis of lactose in milk powder and the conversion rate of lactose was higher than 48%. This study provided support for the application of MOFs nanozymes in lactose catalytic conversion. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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