Highly selective capture and efficient concentration of trace titanium dioxide nanoparticles in environmental waters by phosphorylated ferroferric oxide

Zheng, Ronggang1,2; Yu, Sujuan1,2; Yang, Rui1,2; Li, Peng1,2; Li, Qingcun1,2; Li, Li1,2; Chen, Yuhang1; Cai, Yaqi1,2; Liu, Jingfu1,3,4

2024-05-01

10.1039/d4en00095a

ENVIRONMENTAL SCIENCE-NANO   影响因子和分区

2051-8153

2051-8161

["Selectively and efficiently capturing trace titanium dioxide nanoparticles (TiO2NPs) in environmental waters is a prerequisite for their determination to understand their occurrence, behavior and effects in the environment. Herein, we report the determination of TiO2NPs by using magnetic microextraction with phosphorylated Fe3O4 as a selective adsorbent, followed by inductively coupled plasma mass spectrometry (ICP-MS) detection. The phosphorylated Fe3O4 was prepared by modifying phosphoric acid groups on the surface of synthesized Fe3O4, added into the water samples to selectively adsorb and agglomerate with TiO2NPs, and collected using a permanent magnet. Under the optimized extraction parameters, the factors including sizes and concentrations of TiO2NPs, volumes of water samples, and dissolved organic matter (0-30 mg C L-1) showed little effects on the extraction process. The feasibility of the method was further validated by the analysis of natural water samples, with spiked recoveries of 81.9-99.1% and an extremely low detection limit of 0.4 ng L-1. This method is capable of accurately detecting and quantifying the concentration of trace TiO2NPs in aquatic systems, which contributes to monitoring the fate of TiO2NPs in the environment and assessing their hazards.","Selectively and efficiently capturing trace titanium dioxide nanoparticles (TiO2NPs) in environmental waters is a prerequisite for their determination to understand their occurrence, behavior and effects in the environment."]

SCI ; EI

英语

通讯

National Natural Science Foundation of China["42192571","22076198"]

Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics

Chemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology

WOS:001217433200001

ROYAL SOC CHEMISTRY

Web of Science

1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Hangzhou Inst Adv Study, Sch Environm, UCAS, Hangzhou 310024, Peoples R China
4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China

Zheng, Ronggang,Yu, Sujuan,Yang, Rui,et al. Highly selective capture and efficient concentration of trace titanium dioxide nanoparticles in environmental waters by phosphorylated ferroferric oxide[J]. ENVIRONMENTAL SCIENCE-NANO,2024.

Zheng, Ronggang.,Yu, Sujuan.,Yang, Rui.,Li, Peng.,Li, Qingcun.,...&Liu, Jingfu.(2024).Highly selective capture and efficient concentration of trace titanium dioxide nanoparticles in environmental waters by phosphorylated ferroferric oxide.ENVIRONMENTAL SCIENCE-NANO.

Zheng, Ronggang,et al."Highly selective capture and efficient concentration of trace titanium dioxide nanoparticles in environmental waters by phosphorylated ferroferric oxide".ENVIRONMENTAL SCIENCE-NANO (2024).