Affiliation:
1. College of Materials Science and Engineering Ocean University of China Qingdao 266100 P. R. China
2. College of Marine Life Science Institute of Evolution & Marine Biodiversity Ocean University of China Qingdao 266003 P. R. China
3. Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education Ocean University of China Qingdao 266100 P. R. China
4. Open Studio for Marine Corrosion and Protection Pilot National Laboratory for Marine Science and Technology Qingdao 266237 P. R. China
5. Yusuf Hamied Department of Chemistry University of Cambridge Cambridge CB2 1EW United Kingdom
6. Institute of Polymer Optoelectronic Materials & Devices State Key Laboratory of Luminescent Materials & Devices South China University of Technology Guangzhou 510640 P. R. China
Abstract
AbstractSolar‐powered interfacial heating has emerged as a sustainable technology for hybrid applications with minimal carbon footprints. Aerogels, hydrogels, and sponges/foams are the main building blocks for state‐of‐the‐art photothermal materials. However, these conventional three‐dimensional (3D) structures and related fabrication technologies intrinsically fail to maximize important performance‐enhancing strategies and this technology still faces several performance roadblocks. Herein, monolithic, self‐standing, and durable aerogel matrices are developed based on composite photothermal inks and ink‐extrusion 3D printing, delivering all‐in‐one interfacial steam generators (SGs). Rapid prototyping of multiscale hierarchical structures synergistically reduce the energy demand for evaporation, expand actual evaporation areas, generate massive environmental energy input, and improve mass flows. Under 1 sun, high water evaporation rates of 3.74 kg m−2 h−1 in calm air and 25.3 kg m−2 h−1 at a gentle breeze of 2 m s−1 are achieved, ranking among the best‐performing solar‐powered interfacial SGs. 3D‐printed microchannels and hydrophobic modification deliver an icephobic surface of the aerogels, leading to self‐propelled and rapid removal of ice droplets. This work shines light on rational fabrication of hierarchical photothermal materials, not merely breaking through the constraints of solar‐powered interfacial evaporation and clean water production, but also discovering new functions for photothermal interfacial deicing.
Funder
Fundamental Research Funds for the Central Universities
Natural Science Foundation of Shandong Province
State Key Laboratory of Luminescent Materials and Devices
South China University of Technology
National Natural Science Foundation of China
Subject
Biomaterials,Biotechnology,General Materials Science,General Chemistry
Cited by
10 articles.
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