(Ca₀.₂₅La₀.₅Dy₀.₂₅)CrO₃ Ceramic Fiber@Biomass-Derived Carbon Aerogel with Enhanced Solute Transport Channels for Highly Efficient Solar Interface Evaporation

Wei Zhang ^1,2,3, Liyan Xue ^2,3,4,5, Jincheng Zhang ^2,3

⁰School of Materials Science and Engineering, Jiangxi University of Science & Technology, Ganzhou 341000, China.

Materials (basel, Switzerland) +

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May 25, 2024

View abstract on PubMed

Summary

A novel ceramic fiber@bioderived carbon aerogel enhances solar-driven water evaporation for desalination and sewage treatment. This sustainable material shows high efficiency and stability, overcoming key challenges in solar interface evaporation technology.

Area Of Science

Materials Science
Environmental Science
Chemical Engineering

Background

Solar interface evaporation offers a sustainable method for water purification.
Challenges include efficient solar energy use and device longevity.
Existing methods often struggle with stability, especially in high-salinity conditions.

Purpose Of The Study

To develop an advanced material for efficient and stable solar-driven water evaporation.
To address limitations in current solar evaporation technologies.
To create a composite aerogel with enhanced photothermal and transport properties.

Main Methods

Fabrication of a ceramic fiber@bioderived carbon composite aerogel using electrospinning and freeze-casting.
Incorporation of perovskite oxide ceramic fibers (CCFs) for photothermal conversion.
Utilizing amylopectin-derived carbon (ADC) for structural integrity and hydrophilicity.

Main Results

The composite aerogel demonstrated excellent light absorption and efficient water/solute transport.
Achieved a high temperature of 48.3 °C under 1 kW m⁻² irradiation.
Exhibited a high evaporation rate of 1.68 kg m⁻² h⁻¹ and a solar vapor conversion efficiency of 91.6%.
Showcased long-term stability during evaporation of highly concentrated salt solutions (25 wt%).

Conclusions

The developed (Ca0.25La0.5Dy0.25)CrO3 ceramic fiber@biomass-derived carbon aerogel is a promising material for solar interface evaporation.
The material effectively addresses challenges in solar energy utilization and device stability.
It holds significant potential for practical applications in seawater desalination and wastewater treatment.

Keywords:

aerogel ceramic fiber rare earth salt resistance solar evaporation