{"title":"Preparation of CuFe2O4 via freeze-drying method and its application in boosting peroxymonosulfate activation to degrade rhodamine-B dye","authors":"Xiaoyan Xing, Yong Cui, Zitong Cheng, Wenlong Li, Xuetian Li, Zhongcai Shao","doi":"10.1007/s11581-024-05731-x","DOIUrl":null,"url":null,"abstract":"<div><p>The transition bimetallic oxide catalyst demonstrates the ability to activate peroxymonosulfate (PMS), generating oxidative active groups and facilitating room temperature reactions, all at a relatively low cost. The freeze-drying method was successfully utilized to obtain CuFe<sub>2</sub>O<sub>4</sub> to boost peroxymonosulfate activation to degrade rhodamine-B dye. The catalyst underwent characterization through XRD and SEM. The impact of various reaction parameters, such as initial pH value and PMS dosage on the degradation of rhodamine-B, was examined. The results revealed that the CuFe<sub>2</sub>O<sub>4</sub> catalyst obtained via freeze-drying method as the precipitant exhibited uniform and regular particle characteristics, remarkable crystallization degree, high purity, enormous specific surface area, and an absence of impurity functional groups. Additionally, the prepared CuFe<sub>2</sub>O<sub>4</sub> material showcased enhanced catalytic performance. To carry out the catalysis process, the rhodamine-B concentration was set at 20 mg·L<sup>−1</sup>, with an amount of 200 mg·L<sup>−1</sup> of CuFe<sub>2</sub>O<sub>4</sub> material used. The optimal pH was determined to be 9.0, while the ideal PMS concentration was found to be 1.0 mmol·L<sup>−1</sup>. Under these specific conditions, an impressive 99% degradation rate of rhodamine-B was achieved in just 27 min of catalysis.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ionics","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11581-024-05731-x","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The transition bimetallic oxide catalyst demonstrates the ability to activate peroxymonosulfate (PMS), generating oxidative active groups and facilitating room temperature reactions, all at a relatively low cost. The freeze-drying method was successfully utilized to obtain CuFe2O4 to boost peroxymonosulfate activation to degrade rhodamine-B dye. The catalyst underwent characterization through XRD and SEM. The impact of various reaction parameters, such as initial pH value and PMS dosage on the degradation of rhodamine-B, was examined. The results revealed that the CuFe2O4 catalyst obtained via freeze-drying method as the precipitant exhibited uniform and regular particle characteristics, remarkable crystallization degree, high purity, enormous specific surface area, and an absence of impurity functional groups. Additionally, the prepared CuFe2O4 material showcased enhanced catalytic performance. To carry out the catalysis process, the rhodamine-B concentration was set at 20 mg·L−1, with an amount of 200 mg·L−1 of CuFe2O4 material used. The optimal pH was determined to be 9.0, while the ideal PMS concentration was found to be 1.0 mmol·L−1. Under these specific conditions, an impressive 99% degradation rate of rhodamine-B was achieved in just 27 min of catalysis.
期刊介绍:
Ionics is publishing original results in the fields of science and technology of ionic motion. This includes theoretical, experimental and practical work on electrolytes, electrode, ionic/electronic interfaces, ionic transport aspects of corrosion, galvanic cells, e.g. for thermodynamic and kinetic studies, batteries, fuel cells, sensors and electrochromics. Fast solid ionic conductors are presently providing new opportunities in view of several advantages, in addition to conventional liquid electrolytes.