Core–shell Ag@polypyrrole for synchronous pre-enrichment and immobilization of iodine (I−, IO3−) from liquid radioactive wastes

Zhao, Qian; Liu, Ruixi; Wang, Zeru; Chen, Guangyuan; Duan, Tao; Zhu, Lin

doi:10.1039/d3en00675a

Environ. Sci.: Nano

2024

DOI: 10.1039/d3en00675a

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Core–shell Ag@polypyrrole for synchronous pre-enrichment and immobilization of iodine (I⁻, IO₃⁻) from liquid radioactive wastes

Qian Zhao,

Ruixi Liu,

Zeru Wang

et al.

Abstract: Radioiodine is of great concern owing to its high mobility in the environment and long-term radiotoxicity, as well as effective techniques for simultaneous removal of iodide (I−) and iodate (IO3−)...

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Cited by 2 publications

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One-step synthesis of Ag@polyaniline core–shell particles for efficient removal of radioactive iodine

Tan,

Wang,

Zhao

et al. 2024

J Radioanal Nucl Chem

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One-step synthesis of Ag@polyaniline core–shell particles for efficient removal of radioactive iodine

Tan,

Wang,

Zhao

et al. 2024

J Radioanal Nucl Chem

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Self-Enhanced Electrochemiluminesence of Dye-Doped Polymer Dots for Coreactant-Free Visualized Detection of Iodide Ions

Cao,

Wang,

Liu

et al. 2024

Anal. Chem.

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The monitoring of radioactive iodide levels is of great significance in environmental science and cancer radiotherapy. In this work, a high-throughput, radiationresistant, and visualized electrochemiluminescence (ECL) strategy was developed for detection of iodide ions. Herein, the hydrophobic ruthenium derivative (Ru(bpy) 3 [B(C 6 F 5 ) 4 ] 2 ) (bpy = bipyridyl) was doped in tertiary amine-coupled polymer dots (N-PFO Pdots) to synthesize selfenhanced Pdots (Ru@Pdots), which showed extremely high ECL intensity in absence of coreactant. Due to the efficient ECL resonance energy transfer between Ru(bpy) 3 [B(C 6 F 5 ) 4 ] 2 and N-PFO, the Ru@Pdots exhibited 18 times higher ECL intensity compared with bare N-PFO Pdots. Besides, Ru@Pdots also showed 220-times higher ECL intensity compared with Ru(bpy) 3 [B(C 6 F 5 ) 4 ] 2 doped coreactant-dependent Pdots (Ru@PFO Pdots). Using Ru@Pdots as ECL emitters, an ECL imaging array was designed for iodide ion detection, which exhibited a detection range of 0.8 nM−4 μM and a limit of detection of 0.1 nM. In this strategy, iodide ions were oxidized as iodide free radicals on the surface of the electrode, which could further consume the nitrogen radical of Ru@Pdots and effectively quench the ECL signal. This method also showed good specificity, radiation-resistant performance, and accuracy in actual seawater sample testing, which indicated its value in marine environmental monitoring, nuclear security, and cancer radiotherapy.

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Core–shell Ag@polypyrrole for synchronous pre-enrichment and immobilization of iodine (I⁻, IO₃⁻) from liquid radioactive wastes

Abstract: Radioiodine is of great concern owing to its high mobility in the environment and long-term radiotoxicity, as well as effective techniques for simultaneous removal of iodide (I−) and iodate (IO3−)...

Cited by 2 publications

References 68 publications

One-step synthesis of Ag@polyaniline core–shell particles for efficient removal of radioactive iodine

One-step synthesis of Ag@polyaniline core–shell particles for efficient removal of radioactive iodine

Self-Enhanced Electrochemiluminesence of Dye-Doped Polymer Dots for Coreactant-Free Visualized Detection of Iodide Ions

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