Cost-effective and eco-friendly laser-processed cotton paper for high-performance solar evaporation

Yilin Wang, G. J. Li, K. C. Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Recently, interfacial solar-driven evaporation has received tremendous attention due to its potential for enhancing solar thermal conversation ability via heat localization at the evaporation interface. Diverse materials and configurations have been explored to boost the evaporation using plastic foam as the thermal insulator at the cost of complex assembly and environmental threats. Herein, we demonstrate a biodegradable, cost-effective, and scalable three-dimensional (3D) cotton paper-based solar steam generator prepared by one-step laser-induced forward transfer in the ambient atmosphere. The as-prepared evaporator has excellent solar absorption ability. The defining advantages of this method are that it can easily form a 3D structure and it is free from hazardous raw material involvement and waste generation. With further novel design by using a natural air gap instead of artificial plastic material to insulate the steam generation area and the underlying bulk water, the as-prepared evaporation system can achieve a high evaporation rate of 1711 g m−2 h−1 with a corresponding efficiency of 83% under one sun illumination. Such solar vaporization functions offer new insights into the future development of high-performance solar steam generators through an environmentally friendly and cost-effective pathway.

Original languageEnglish
Article number110693
JournalSolar Energy Materials and Solar Cells
Volume218
DOIs
Publication statusPublished - Dec 2020

Keywords

  • Interfacial water evaporation
  • Laser-induced forward transfer
  • Photothermal conversion

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

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