In response to the imperative needs for water environment purification and potable water provision, an optimized interface evaporator (IE) structure has been developed, which integrates a floating layer endowed with selective oil removal and photodegradation properties alongside a polydopamine sponge photothermal layer characterized by its hydrophilic channel. The primary innovation presented in this paper is the in situ superhydrophobic modification of the Bi₂MoO₆ semiconductor photocatalyst (CA = 165.5°), which not only retains the photodegradation ability of visible light response, but also facilitates its applications within the fixing layer of the IE, thereby enabling effective oil adsorption. After 6 indoor and 2 outdoor photodegradation cycles, the photocatalytic capacity was maintained at 99.8 %. The IE exhibited a steam generation rate of 2.1 kg•m⁻²•h⁻¹, with the ability to purify sewage containing dyes and metal ions. Notably, the porous architecture of the photothermal layer confers a superior salt suppression property, highlighting its potential for applications in seawater desalination.

中文翻译：

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界面改性策略增强了钼酸铋的不润湿性及其在太阳能蒸发和环境治理中的应用


为响应水环境净化和饮用水供应的迫切需求，开发了一种优化的界面蒸发器 （IE） 结构，该结构将具有选择性除油和光降解特性的浮层与以亲水通道为特征的聚多巴胺海绵光热层集成在一起。本文提出的主要创新是 Bi₂MoO₆ 半导体光催化剂 （CA = 165.5°） 的原位超疏水改性，它不仅保留了可见光响应的光降解能力，而且有利于其在 IE 固定层内的应用，从而实现有效的油吸附。经过 6 次室内和 2 次室外光降解循环后，光催化能力保持在 99.8 %。IE 的蒸汽发生率为 2.1 kg•^m-2•^h-1，能够净化含有染料和金属离子的污水。值得注意的是，光热层的多孔结构赋予了卓越的盐抑制性能，突出了其在海水淡化中的应用潜力。