新型磁性吸附剂的设计合成及其对葡萄酒中Cu^(2+)去除研究  

Design and Synthesis of A New Magnetic Adsorbent and Its Study on Cu^(2+)Removal from Wine

作　　者：刘一辉 刘圆圆 王琳 魏如腾 李强 李华[1] 刘满顺 王华[1] LIU Yihui;LIU Yuanyuan;WANG Lin;WEI Ruteng;LI Qiang;LI Hua;LIU Manshun;WANG Hua(College of Enology,Northwest A&F University,Yangling 712100,China;College of Food Science and Engineering,Shanxi Agricultural University,Taiyuan 030031,China;Ningxia Food Testing and Research Institute,Yinchuan 750000,China)

机构地区：[1]西北农林科技大学葡萄酒学院,陕西杨凌712100 [2]山西农业大学食品科学与工程学院,山西太原030031 [3]宁夏食品检测研究院,宁夏银川750000

出　　处：《中外葡萄与葡萄酒》2025年第2期74-83,共10页Sino-Overseas Grapevine & Wine

基　　金：西北农林科技大学科研启动项目(Z1090122028)国家市场监管枸杞及葡萄酒质量安全重点实验室开放课题(2023KF0001)。

摘　　要：本文制备了一种磁性纳米吸附剂(Fe_(3)O_(4)@PDA/HA),并将其用于葡萄酒中过量Cu^(2+)的去除。通过SEM、FT-IR、XRD、TGA、VSM等表征方法探究了该吸附剂的理化特性;以吸附动力学和吸附热力学试验探究其对Cu^(2+)的吸附机理;同时将其应用于干红/白葡萄酒中综合评价了其吸附性能及对酒质的影响。结果表明,Fe_(3)O_(4)@PDA/HA表面具有丰富的吸附位点且其具有良好的耐酸性能和超顺磁性;其对Cu^(2+)的吸附量为80.2mg·g^(-1),该值比一些研究报道的吸附剂高2~10倍。另外,Fe_(3)O_(4)@PDA/HA具有较好的稳定性,经5次循环使用后仍能保持约75%的Cu^(2+)吸附效率,且不会导致葡萄酒品质劣变。因此,本研究中Fe_(3)O_(4)@PDA/HA是控制葡萄酒Cu^(2+)含量的理想吸附剂。A new magnetic adsorbent(Fe_(3)O_(4)@PDA/HA)was prepared and used for the removal of excess Cu^(2+)from wine in present study.The physicochemical properties of the adsorbent were investigated by SEM,FT-IR,XRD,TGA,VSM and other characterization methods.Adsorption kinetics and thermodynamics experiments were conducted to reveal the adsorption mechanism of Cu^(2+),and its adsorption performance and influence on wine quality were comprehensively evaluated by applying it to dry red/white wines.The results showed that Fe_(3)O_(4)@PDA/HA has good acid resistance and superparamagnetism,benefiting from the abundant adsorption sites on the surface,adsorption capacity of Fe_(3)O_(4)@PDA/HA toward Cu^(2+)was 80.2 mg·g^(-1),which was 2-10 times higher than that of other adsorbents reported in other studies.Moreover,due to excellent stability,its adsorption capacity maintained about 75% of Cu^(2+)adsorption efficiency after 5 cycles,and the magnetic adsorbent did not lead to the deterioration of wine quality.Therefore,Fe_(3)O_(4)@PDA/HA is an ideal adsorbent for controlling Cu^(2+)content in wine in this study.

关 键 词：磁性吸附剂 耐酸性 Cu^(2+)去除 葡萄酒 

分 类 号：TS262.61[轻工技术与工程—发酵工程]