期刊
NEW JOURNAL OF CHEMISTRY
卷 47, 期 28, 页码 13106-13116出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3nj01201h
关键词
-
Antibiotics have become a new type of pollutant in water, with low concentration and biological persistence. Photocatalysis, as a novel water treatment technology, has shown great potential in the treatment of hard-to-degrade pollutants. This study focuses on the efficient identification and preferential degradation of tetracycline hydrochloride using core-shell structured molecularly imprinted TiO2. The prepared TiO2 exhibits higher adsorption capacity, selectivity, and photodegradation performance, with a degradation rate of 82.18% under 60 minutes of light irradiation. The core-shell structured molecularly imprinted TiO2 has advantages such as high removal capacity, stability, and environmental friendliness, making it suitable for the treatment of persistent low-concentration pollutants in water.
Antibiotics have emerged as a new pollutant that is low in concentration and biologically persistent in water. Photocatalysis is a new water treatment technology, and has shown significant promise for the treatment of hard-to-degrade pollutants. In this work, core-shell structured molecularly imprinted TiO2 was prepared by the Stober method and the sol-gel method for efficient identification and preferential degradation of tetracycline hydrochloride. The characterization results of XRD, SEM, TEM, XPS, and FT-IR showed the successful synthesis of core-shell structured molecularly imprinted TiO2 and imprinted cavities. Core-shell structured molecularly imprinted TiO2 exhibits higher adsorption capacity, selectivity, and photodegradation performance for template molecules. The degradation rate of tetracycline hydrochloride was 82.18% under 60 min of light irradiation. The enhanced adsorption capacity and selectivity can be attributed to the chemical interaction between the target molecule and the imprinted cavity as well as the size matching between the imprinted cavity and the target molecule. The primary active species and degradation mechanism in the photodegradation process were analyzed via radical capture experiments. The prepared core-shell structured molecularly imprinted TiO2 has the advantages of high removal capacity, high stability, and environmental friendliness, and has widespread applications in water treatment and water environment remediation, especially when persistent low-concentration pollutants are involved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据