Synergistic chemical patterns on a hydrophilic slippery liquid infused porous surface (SLIPS) for water harvesting applications,Journal of Materials Chemistry A

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Synergistic chemical patterns on a hydrophilic slippery liquid infused porous surface (SLIPS) for water harvesting applications
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2020-11-03 , DOI: 10.1039/d0ta09271a
Kousik Maji _{1,

2,

3} , Avijit Das _{1,

2,

3} , Manideepa Dhar _{1,

2,

3} , Uttam Manna _{1,

2,

2,

3,

4}

Affiliation

Efficient water harvesting with a robust interface is important for realistic applications. Here, a dual chemically reactive porous polymeric interface is introduced to adopt various bio-inspired interfaces for the direct comparison of their water-harvesting performances using an identical experimental setup. An improved water-harvesting performance (1100 mg cm⁻² h⁻¹) was observed when an edible oil (olive oil)-infused hydrophilic and slippery interface was used, in comparison to a hydrophobic slippery liquid-infused porous surface (SLIPS, 800 mg cm⁻² h⁻¹) and a superhydrophobic interface (250 mg cm⁻² h⁻¹). Furthermore, the strategic physical confinement of the hydrophilic-slippery interface and the specific arrangement of chemically modulated hydrophilic patterns on a hydrophilic-slippery background accelerated the shedding of condensed water droplets from 107 s to only 15 s. Eventually, a physically confined hydrophilic SLIPS with chemically modulated patterns yielded a highly efficient (4400 ± 190 mg cm⁻² h⁻¹) water-harvesting SLIPS.

中文翻译：

用于集水应用的亲水性光滑液体注入的多孔表面（SLIPS）上的协同化学图案

具有坚固接口的有效集水对于实际应用很重要。在这里，引入了双重化学反应性多孔聚合物界面，以采用各种生物启发的界面，以使用相同的实验装置直接比较它们的集水性能。与使用疏水性光滑液体的多孔表面（SLIPS，800）相比，当使用注入食用油（橄榄油）的亲水性和光滑界面时，观察到改善的集水性能（1100 mg cm ^-2 h ^-1） mg cm ^-2 h ^-1）和超疏水界面（250 mg cm ^-2 h ^-1）。此外，亲水性-光滑界面的战略性物理限制和亲水性-光滑背景上化学调制的亲水性图案的特定排列将冷凝水滴的脱落时间从107 s加速到仅15 s。最终，具有化学调制图案的物理限制的亲水性SLIPS产生了高效的（4400±190 mg cm ^-2 h ^-1）集水SLIPS。

更新日期：2020-11-25

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