Intensified Nanoparticle Synthesis Using Hybrid Microwave and Ultrasound Treatments: Consecutive and Concurrent Modes,Crystal Research and Technology

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Intensified Nanoparticle Synthesis Using Hybrid Microwave and Ultrasound Treatments: Consecutive and Concurrent Modes
Crystal Research and Technology ( IF 1.5 ) Pub Date : 2020-02-25 , DOI: 10.1002/crat.201900199
Atsuya Shibatani ₁ , Haruka Kan ₁ , Yusuke Asakuma ₁ , Agus Saptoro ₂

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Bubble formation around nucleated particle is inevitable when quick heating of microwave is employed in nanoparticle synthesis. Since these bubbles may cause bumping behavior, the bubble growth must be possibly suppressed to ensure stable microwave‐assisted operation. In this study, sequential and simultaneous ultrasound treatment and microwave irradiations on nanoparticle synthesis are proposed and investigated to assess the benefit of ultrasound in preventing superheating behavior and producing finer particles. Experimental results indicate that the inclusions of ultrasound treatment result in finer particle sizes and suppression of bumping behavior. Particularly, consecutive ultrasound treatment and microwave irradiation are recommendable due to its practicality and generating smallest bubbles and final particle sizes. This technique can therefore be expected as an innovative way to enhance industrial applications of quick thermal response induced by microwave.

中文翻译：

使用混合微波和超声处理增强纳米颗粒的合成：连续和并行模式

当在纳米颗粒合成中使用微波的快速加热时，不可避免地在成核颗粒周围形成气泡。由于这些气泡可能会引起碰撞，因此必须抑制气泡的生长，以确保稳定的微波辅助操作。在这项研究中，提出并研究了连续和同时进行的超声处理以及微波辐射对纳米颗粒合成的影响，以评估超声在防止过热行为和产生更细颗粒方面的益处。实验结果表明，超声处理中的夹杂物可导致更细的颗粒尺寸并抑制碰撞行为。特别地，由于其实用性并产生最小的气泡和最终的粒径，因此推荐连续进行超声波处理和微波照射。

更新日期：2020-04-09

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