Double-shell hollow FeCoO_x nanozyme-catalyzed colorimetric quantification and discrimination of dihydroxybenzene isomers

作者全名：Kong, Haixia; Zhang, Pu; Jiang, Zhong Wei; Xie, Xiaoting; Zhang, Wendong; Gong, Xue; Wang, Yi

作者地址：[Kong, Haixia; Jiang, Zhong Wei; Xie, Xiaoting; Zhang, Wendong; Gong, Xue; Wang, Yi] Chongqing Normal Univ, Coll Chem, Chongqing Key Lab Green Catalysis Mat & Technol, Chongqing 401331, Peoples R China; [Zhang, Pu] Chongqing Med Univ, Coll Pharm, Chongqing Res Ctr Pharmaceut Engn, Chongqing 400016, Peoples R China

通信作者：Jiang, ZW; Wang, Y (通讯作者)，Chongqing Normal Univ, Coll Chem, Chongqing Key Lab Green Catalysis Mat & Technol, Chongqing 401331, Peoples R China.

来源：MICROCHEMICAL JOURNAL

ESI学科分类：CHEMISTRY

WOS号：WOS:001238264600001

JCR分区：Q1

影响因子：4.9

年份：2024

卷号：201

期号：　

开始页：　

结束页：　

文献类型：Article

关键词：Nanozyme; Principal component analysis; Colorimetric detection; Phenolic pollutant; Catalytic kinetics

摘要：Due to the high perniciousness of dihydroxybenzene isomers toward environment and human health, it is imperative to develop simple and rapid strategies for detecting/distinguishing dihydroxybenzene isomers. However, most of the traditional approaches can only respond to single component of dihydroxybenzene isomers, which limits their application in the assay of complex samples. Herein, we develop a colorimetric sensing array based on the peroxidase-like activity of double -shell hollow FeCoO x nanozyme. Since different phenolic substances showed distinct kinetics during the catalytic reaction with the participation of FeCoO x , three different kinds of dihydroxybenzene isomers could be identified by principal component analysis. Moreover, various combinations of mixed dihydroxybenzene isomers with different concentrations can also be completely distinguished within 30 min in tap water and environmental water. The method showed a good linear response to catechol, resorcinol, and hydroquinone in the range of 1.5 to 100 mu M, 5 to 100 mu M, and 1 to 100 mu M, respectively, with corresponding detection limit of 1.37 mu M, 2.91 mu M, and 0.824 mu M. Besides, we have constructed a smartphone-based portable platform for analyzing various combinations of mixed dihydroxybenzene in actual water. This work provides a new idea for distinguishing phenolic substances with similar structures, and is promising to identify and monitor phenolic pollutants in industrial wastewater.

基金机构：National Natural Science Foundation of China [22204011]; Chongqing Innovation Research Group Project [CXQT21015]; Startup Fund of Chongqing Normal University [22XLB004]; Chongqing Postgraduate Research and Innovation Project [CYS22557]; Chongqing Youth Expert Studio; Leading Talent of Bowang Scholar in Chongqing Normal University

基金资助正文：This work was supported by the National Natural Science Foundation of China (no. 22204011) , Chongqing Innovation Research Group Project (no. CXQT21015) , Startup Fund of Chongqing Normal University (no. 22XLB004) , and the Chongqing Postgraduate Research and Innovation Project (no. CYS22557) . Y.W. was also sponsored by the Chongqing Youth Expert Studio, and Leading Talent of Bowang Scholar in Chongqing Normal University.