| Autor: |
LIU Fujie, HUANG Shihui, PAN Lili |
| Jazyk: |
English<br />Chinese |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Shipin yu jixie, Vol 40, Iss 1, Pp 33-39 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1003-5788 |
| DOI: |
10.13652/j.spjx.1003.5788.2023.80056 |
| Popis: |
Objective: This study aimed to explore the adsorption performance and mechanism of phenolic acids in simulated sugarcane juice by nano-calcium carbonate modified zeolite (CaCO3@ZL). Methods: Using zeolite as the supporting framework, a co-precipitation technique was utilized to create nano-calcium carbonate modified zeolite (CaCO3@ZL), which was then employed to simulate the adsorption of phenolic acids in sugarcane juice. Using X-ray diffraction (XRD) and infrared spectroscopy (FTIR), the zeolite's characteristics were examined both before and after alteration. The kinetic model fitting of CaCO3@ZL and static adsorption studies were also conducted. The properties of phenolic acids were studied during adsorption. Results: XRD and FTIR characterization results indicate that the modification process successfully prepared nano-calcium carbonate loaded on the surface of zeolite CaCO3@ZL. Comparing the adsorption test results of CaCO3@ZL to those of the unmodified ZL, the adsorption capacity of phenolic acids increased by 40.34%, with adsorption equilibrium at 600 minutes. The fitting results showed that the adsorption process followed the Freundlich isotherm adsorption model and quasi-second-order adsorption kinetics model. After 5 regenerations CaCO3@ZL still maintains 80.39% of the initial adsorption amount of phenolic acid. Conclusion: The adsorption process rate of CaCO3@ZL on simulated sugarcane juice is mainly controlled by multi-molecular layer adsorption and chemical adsorption. CaCO3@ZL has good regeneration performance and can be used for the removal of phenolic acids in sugarcane juice. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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