期刊
ACS APPLIED MATERIALS & INTERFACES
卷 14, 期 6, 页码 7936-7948出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c22215
关键词
solar energy; interfacial solar steam generation; egg tray; municipal solid waste; waste toner
资金
- Research Grants Council of Hong Kong, China [152093/18E]
- Hong Kong Polytechnic University [1ZE14]
- Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China
- Science and Technology Innovation Commission of Shenzhen [JCYJ20210324141206017]
This paper proposes a 3D solar evaporator for water purification by utilizing waste paper egg trays and waste toner powder. The solar evaporator demonstrates excellent evaporation rate and efficiency, providing an innovative and sustainable solution for water resource issues.
With the advancement of civilization, water purification, as well as management and disposal of ever-increasing municipal solid waste (MSW), and e-waste, have become global concerns. To address these issues in a sustainable way, a 3D solar evaporator has been proposed in this paper by repurposing recycled paper from MSW in the form of egg trays and waste dry toner (e-waste) using a facile fabrication method. The unique 3D porous structure, fibrous surface, superior water absorbing capability as well as low thermal conductivity of wastepaper-derived egg trays make them an excellent candidate for an efficient solar evaporator, while the waste toner powder coating significantly enhances the optical absorbance capacity. Under 1 sun illumination, the proposed solar evaporator demonstrates an excellent evaporation rate and efficiency of 1.3 kg/m(2) h and 78.5%, respectively. Moreover, the competitive advantage of the 3D structure in collecting solar irradiance at various light incident angles in comparison to a 2D structure, excellent cycle stability, low processing temperature, and the use of low-cost waste materials enable its use for large-scale water purification systems.
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