Molybdenum Oxide Nanosheet-Supported Ferrous Ion Artificial Peroxidase for Visual Colorimetric Detection of Triacetone Triperoxide

Yang, Chao1; Xie, Zhenyang1; Zhang, Hongping1; Li, Hua3; Cai, Yanhua2; Wang, Jinhu1; Du, Jiayan1; Yu, Haili1; He, Yi1

2019-12-02

10.1021/acssuschemeng.9b04462

ACS Sustainable Chemistry & Engineering   影响因子和分区

2168-0485

The traditional nanozymes have low atom/ion utilization efficiency and are easily influenced by the size, morphology, as well as surface composition of nanomaterials. Herein, we report a template-free and valid approach to prepare a ferrous ion (Fe2+) anchored onto the surface of the MoO3 nanosheet (Fe2+/MoO3) through coordination interaction between Fe2+ and hydroxyl groups of MoO3. The resulting Fe2+/MoO3 shows the peroxidase-like activity, and it can be utilized for catalytic decomposition of hydrogen peroxide (H2O2) to generate hydroxyl radicals ((OH)-O-center dot) that oxidize various chromogenic substrates, generating distinct color change and strong ultraviolet-visible absorption. The Fe2+/MoO3 peroxidase mimic exhibits a good thermal stability and works well at a high reaction temperature (95 degrees C) and has higher affinity for substrates than for natural horseradish peroxidase. Theoretical calculation results imply that the strong electrostatic field from the polarization charges between Fe2+ and the MoO3 nanosheet improves the reaction activity, which boosts the generation of (OH)-O-center dot from H2O2. Using the Fe2+/MoO3 peroxidase mimic-involved chromogenic system, we construct visual colorimetric assays for H2O2 and triacetone triperoxide (TATP) explosives, which realize the visual detection of H2O2 and TATP at concentrations of 40 and 60 mu M, respectively.

Fe2+ catalyst artificial peroxidase visual detection triacetone triperoxide MoO3 nanosheet

SCI ; EI

英语

其他

China Academy of Engineering Physics Foundation[18zh005603]

Chemistry ; Science & Technology - Other Topics ; Engineering

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical

WOS:000500650400026

AMER CHEMICAL SOC

20194707709994

Color ; Colorimetry ; Explosives detection ; Molybdenum oxide ; Morphology ; Nanosheets

Light/Optics:741.1 ; Nanotechnology:761 ; Chemistry:801 ; Chemical Products Generally:804 ; Solid State Physics:933 ; Optical Variables Measurements:941.4 ; Materials Science:951

Web of Science

1.Southwest Univ Sci & Technol, Sichuan Coinnovat Ctr New Energet Mat, State Key Lab Environm Friendly Energy Mat, 59 Qinglong Rd, Mianyang 621010, Sichuan, Peoples R China
2.Chongqing Univ Arts & Sci, Chongqing Key Lab Environm Mat & Remediat Technol, 319 Honghe Rd, Yongchuan 402160, Sichuan, Peoples R China
3.Southern Univ Sci & Technol, Mat Characterizat & Preparat Ctr, 1088 Nanshan Rd, Shenzhen 518055, Guangdong, Peoples R China

Yang, Chao,Xie, Zhenyang,Zhang, Hongping,et al. Molybdenum Oxide Nanosheet-Supported Ferrous Ion Artificial Peroxidase for Visual Colorimetric Detection of Triacetone Triperoxide[J]. ACS Sustainable Chemistry & Engineering,2019,7(23):18985-18991.

Yang, Chao.,Xie, Zhenyang.,Zhang, Hongping.,Li, Hua.,Cai, Yanhua.,...&He, Yi.(2019).Molybdenum Oxide Nanosheet-Supported Ferrous Ion Artificial Peroxidase for Visual Colorimetric Detection of Triacetone Triperoxide.ACS Sustainable Chemistry & Engineering,7(23),18985-18991.

Yang, Chao,et al."Molybdenum Oxide Nanosheet-Supported Ferrous Ion Artificial Peroxidase for Visual Colorimetric Detection of Triacetone Triperoxide".ACS Sustainable Chemistry & Engineering 7.23(2019):18985-18991.