Synthesis of Egyptian Blue and mechanisms
Synthesis of Egyptian Blue and mechanisms
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DOI：
10.1016/j.jpcs.2022.110738
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发表时间：
2022-04
影响因子：
4
通讯作者：
Agoston Kiss;H. Stretz;A. Ueda;Richard Mu
中科院分区：
文献类型：
--
作者：
Agoston Kiss;H. Stretz;A. Ueda;Richard Mu
埃及蓝（EB，Cuprorivaite，CaCuSi 4 O 10）是一种新的候选纳米材料为基础的传感器在水中，因为它的红外（IR，910 nm）发射具有较高的量子产率相比，目前常用的IR报告。用于生物成像和环境感测的IR信号比可见光更深地穿透生物基质（即组织）并且具有更少的散射。本文报道了升温速率对EB固相合成产率的影响，并对形成机理进行了讨论。采用热重-质谱联用和原位高温X射线衍射研究了EB的合成。在7 °C/min的加热速率下，用含有CaCO 3前体的样品观察到EB产率的可再现的最大值。我们报道了优化的反应条件，产率，和合成的EB层状材料的光致发光响应。前驱体含量（O2、CaCO 3、CuO和SiO2）也对EB产率有微妙的影响。
Egyptian Blue (EB, Cuprorivaite, CaCuSi4O10) is a novel candidate for nanomaterial-based sensors in water, as its infrared (IR, 910 nm) emission has high quantum yield in comparison with current commonly-used IR reporters. IR signals for bioimaging and environmental sensing penetrate biological matrices (i.e. tissues) deeper and with less scattering than visible light. This work reports the effects of heating rate on the solid state synthetic yield of EB and formation mechanism is discussed. EB synthesis was investigated with thermogravimetric analysis coupled with mass spectrometry andin-situhigh temperature X-ray diffraction. A reproducible maximum in EB yield was observed at a heating rate of 7 °C/min with samples containing CaCO3precursor. We report the optimized reaction conditions, yields, and the photoluminescent response of the synthesized EB layered materials. The precursor content (O2, CaCO3, CuO and SiO2) also had a subtle effect on EB yield.