基于氢化三氧化钼的复合光热蒸发器、制备方法及应用

By constructing a hydrophobic photothermal layer/hydrophilic water-transporting layer structure of hydrogenated molybdenum trioxide and polyvinyl alcohol foam, the problems of photothermal material shedding and low evaporation efficiency are solved, achieving high-efficiency photothermal conversion and structural stability, which is suitable for seawater desalination and industrial wastewater treatment.

CN122126916BActive Publication Date: 2026-07-17UNIV OF SCI & TECH OF CHINA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF SCI & TECH OF CHINA
Filing Date
2026-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing photothermal evaporators suffer from weak adhesion between the photothermal material and the substrate during long-term water flow scouring and evaporation cycles, leading to detachment. Furthermore, adhesives increase process complexity and clog water molecule transport channels, reducing evaporation efficiency.

Method used

Janus asymmetric structure, which uses hydrogenated molybdenum trioxide and polyvinyl alcohol foam to construct a hydrophobic photothermal layer/hydrophilic water transport layer, is used to stabilize the photothermal material in situ through the chelation reaction of metal ions and chitosan. Combined with hydrophobic treatment, it achieves efficient photothermal conversion and anti-salt blockage performance.

Benefits of technology

It achieves efficient photothermal conversion, excellent anti-salt clogging performance and superior structural stability, and is suitable for solar-driven seawater desalination and saline industrial wastewater treatment, with broad industrialization prospects.

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Abstract

本发明公开了一种基于氢化三氧化钼的复合光热蒸发器、制备方法及应用,涉及清洁能源和水资源利用技术领域。所述制备方法包括:将三氧化钼粉末与低功函数金属颗粒在盐酸溶液中进行氢化还原反应,得到氢化三氧化钼粉体及含有金属离子的滤液;将氢化三氧化钼粉体分散于所述滤液中,得到复合分散液;将聚乙烯醇泡沫基材的待负载端局部浸入壳聚糖溶液中进行预负载;再将预负载区域浸入所述复合分散液中,使壳聚糖与滤液中的金属离子发生原位螯合反应,并同步固定氢化三氧化钼颗粒;最后对负载区进行局部疏水处理,得到包括疏水光热层和亲水输水层的复合光热蒸发器。本发明所得蒸发器可用于太阳能海水淡化、高盐废水处理或清洁水生产。
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