journal article·2023-01-13

High-Performance Janus Solar Evaporator for Water Purification with Broad Spectrum Absorption and Ultralow Heat Loss

Lanlan Hou, Nü Wang, Li-Juan Yu, Jingchong Liu, Shaocheng Zhang, Zhimin Cui, Shuai Li, Hui Li, Xiaofei Liu, Lei Jiang, Yong Zhao

ACS Energy Letters· Volume 8· Issue 1
Publisher page

Abstract

Interfacial solar vapor generation offers a promising zero-CO2-consuming energy conversion technology for the production of renewable clean water. The key for boosting solar vapor efficiency relies on the rational design of materials composition and structure at the micro/nanoscale to improve light utilization. Here, we demonstrate a Janus evaporator based on a hydrophilic carbon-black-decorated copper oxide (C@CuO) membrane as the light-absorbing layer and an opposite hydrophobic polymer nanofibers as the thermal insulation layer, which enables efficient energy utilization and vapor generation through a synergistic light absorption and thermal confinement strategy. In addition, the hydrated C@CuO surface reduces vaporization enthalpy that accelerates the efficient evaporation of water. A high evaporation rate of 1.88 kg m–2 h–1 is achieved by the Janus evaporator under 1 sun irradiation. This high photothermal conversion rate and ultralow heat loss synergistic engineering offers a bright future for high-efficiency solar water purification applications.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Solar-Powered Water Purification Methods · Solar Thermal and Photovoltaic Systems · Surface Modification and Superhydrophobicity

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Bioinspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bioinspired Energy Materials and Devices, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing100191, P. R. China

Beijing Institute of Graphic Communication, Beijing102600, P. R. China

Research School of Chemistry, The Australian National University, Canberra, ACT2601Australia

Department of Chemistry & Biological Engineering, University of Science & Technology Beijing, Beijing100083, P. R. China

College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan030024, China

CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing100190, P. R. China

Funding

China Postdoctoral Science Foundation · Central University Basic Research Fund of China · National Natural Science Foundation of China · Higher Education Discipline Innovation Project · Central Committee of the Communist Party of China

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