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Unidirectional Transport and Effective Collection of Underwater CO2 Bubbles Utilizing Ultrafast-Laser-Ablated Janus Foam
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-04-02 , DOI: 10.1021/acsami.0c00464 Suwan Zhu 1 , Jiawen Li 1 , Shengwen Cai 2 , Yucheng Bian 3 , Chao Chen 1 , Bing Xu 1 , Yahui Su 2 , Yanlei Hu 1 , Dong Wu 1 , Jiaru Chu 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-04-02 , DOI: 10.1021/acsami.0c00464 Suwan Zhu 1 , Jiawen Li 1 , Shengwen Cai 2 , Yucheng Bian 3 , Chao Chen 1 , Bing Xu 1 , Yahui Su 2 , Yanlei Hu 1 , Dong Wu 1 , Jiaru Chu 1
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Manipulating gas bubbles in aqueous ambient is of great importance for applications in water treatment, gas collection, and matter transport. Here, a kind of Janus foam is designed and fabricated by one-step ultrafast laser ablation of one side of the copper film, which is treated to be superhydrophobic. Janus foam exhibits not only the capability of unidirectional transport of underwater bubbles but also gas collection with favorable efficiency up to ∼15 mL cm–2 min–1. The underlying physical mechanism is attributed to the cooperation of the buoyancy, adhesion, and wetting gradient forces imposed on the bubbles. As a paradigm, the underwater chemical reaction between the unidirectional CO2 gas flow and the alkaline phenolphthalein solution is demonstrated via Janus foam. This facile and low-cost fabrication approach for Janus foam will find broad potential applications in effective bubble transport, carbon capture, and controllable chemical reactions under aqueous conditions.
中文翻译：
利用超快激光烧蚀的Janus泡沫单向传输和有效收集水下CO 2气泡
在水性环境中处理气泡对于水处理，气体收集和物质运输中的应用非常重要。这里，通过对铜膜的一侧进行一步超快激光烧蚀来设计和制造一种Janus泡沫，该铜膜被视为超疏水性的。Janus泡沫不仅具有单向传输水下气泡的能力，而且还具有高达约15 mL cm –2 min –1的气体收集效率。潜在的物理机制归因于施加在气泡上的浮力，附着力和润湿梯度力的共同作用。作为范例，单向CO 2之间的水下化学反应气体流动和碱性酚酞溶液通过Janus泡沫进行了演示。这种Janus泡沫的简便且低成本的制造方法将在水性条件下有效的气泡传输，碳捕获以及可控的化学反应中找到广泛的潜在应用。
更新日期：2020-04-03
中文翻译：
利用超快激光烧蚀的Janus泡沫单向传输和有效收集水下CO 2气泡
在水性环境中处理气泡对于水处理，气体收集和物质运输中的应用非常重要。这里，通过对铜膜的一侧进行一步超快激光烧蚀来设计和制造一种Janus泡沫，该铜膜被视为超疏水性的。Janus泡沫不仅具有单向传输水下气泡的能力，而且还具有高达约15 mL cm –2 min –1的气体收集效率。潜在的物理机制归因于施加在气泡上的浮力，附着力和润湿梯度力的共同作用。作为范例，单向CO 2之间的水下化学反应气体流动和碱性酚酞溶液通过Janus泡沫进行了演示。这种Janus泡沫的简便且低成本的制造方法将在水性条件下有效的气泡传输，碳捕获以及可控的化学反应中找到广泛的潜在应用。
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