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ACS ES&T Water · 2024 · IF 4.8

Effective Detection of Tetracyclines by an Ultrastable Zwitterionic Copper(I)-Iodide Hybrid Cluster

Zhennan Zhou,Haibo Li,Yikang Lin,Jiali Fan,Hua Tong,Jing Yang,Wei Liu,Gangfeng Ouyang

It is necessary and urgent to develop new materials that are sensitive to antibiotics and can detect them in wastewater. Here, we report a zwitterionic copper(I)-iodide hybrid cluster with strong luminescence and excellent stability. We demonstrate for the first time that this compound can be an efficient optical sensor for tetracyclines, a widely used type of antibiotic, in an aqueous system, with the limit of detection reaching as low as 521–851 ppb. Further, possible electron and energy transfer mechanisms are discussed. This study has opened up new applications for this type of material in the field of chemical sensing.

研究领域: 材料科学 · 分析化学 · 环境科学

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Nature Communications · 2022 ·Vol. 13 ·期 1 ·1-10 · IF 17.694

Biomimetic non-classical crystallization drives hierarchical structuring of efficient circularly polarized phosphors

Feng Li-Zhe,Wang Jing-Jing,Ma Tao,Yin Yi-Chen,Song Kuang-Hui,Li Zi-Du,Zhou Man-Man,Jin Shan,Zhuang Taotao,Fan Feng-Jia,Zhu Man-Zhou,Yao Hong-Bin

Hierarchically structured chiral luminescent materials hold promise for achieving efficient circularly polarized luminescence. However, a feasible chemical route to fabricate hierarchically structured chiral luminescent polycrystals is still elusive because of their complex structures and complicated formation process. We here report a biomimetic non-classical crystallization (BNCC) strategy for preparing efficient hierarchically structured chiral luminescent polycrystals using well-designed highly luminescent homochiral copper(I)-iodide hybrid clusters as basic units for non-classical crystallization. By monitoring the crystallization process, we unravel the BNCC mechanism, which involves crystal nucleation, nanoparticles aggregation, oriented attachment, and mesoscopic transformation processes. We finally obtain the circularly polarized phosphors with both high luminescent efficiency of 32% and high luminescent dissymmetry factor of 1.5 × 10 −2 , achieving the demonstration of a circularly polarized phosphor converted light emitting diode with a polarization degree of 1.84% at room temperature. Our designed BNCC strategy provides a simple, reliable, and large-scale synthetic route for preparing bright circularly polarized phosphors.

CAS / MDL: 7681-65-4 25249-54-1 9003-39-8

研究领域: 材料科学 · 化学 · 光学 · 纳米技术

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Effective Detection of Tetracyclines by an Ultrastable Zwitterionic Copper(I)-Iodide Hybrid Cluster

Biomimetic non-classical crystallization drives hierarchical structuring of efficient circularly polarized phosphors