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<p>In response to the problems encountered in clean water production and environmental restoration, this paper designed a multifunctional interfacial evaporation device. The evaporator was constructed by integrating a carbon quantum dot-bismuth oxybromide (CQD/BiOBr-E) supporting layer with an agaric-hydrogel photothermal conversion layer. Thanks to its excellent non-wetting property (CA = 158.3°), the floating layer can selectively remove oil. Importantly, the degradation of water-soluble pollutants has been achieved. Even after 10 degradation cycles, the degradation efficiency can still reach 92.6%, showing that CQD/BiOBr-E has excellent long-term degradation stability. The active species capture experiment demonstrated that ·O<sub>2</sub><sup>−</sup> and h<sup>+</sup> are the main active species. With the agaric-hydrogel as the photothermal layer, the assembled interfacial evaporator reached an evaporation rate of 1.52 kg m<sup>−2</sup> h<sup>−1</sup>. This multifunctional interfacial evaporator is designed to provide solutions for environmental pollution and water shortage problems.</p>

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A high-performance agaric-hydrogel evaporator for clean water production and sewage treatment applications

  • 期刊论文

  • 发表日期：

    2026年7月29日

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  • Xiao Miao,
  • Shiqi Song,
  • Yanming Yang,
  • Peiyu Zhang,
  • Guina Ren

摘要

In response to the problems encountered in clean water production and environmental restoration, this paper designed a multifunctional interfacial evaporation device. The evaporator was constructed by integrating a carbon quantum dot-bismuth oxybromide (CQD/BiOBr-E) supporting layer with an agaric-hydrogel photothermal conversion layer. Thanks to its excellent non-wetting property (CA = 158.3°), the floating layer can selectively remove oil. Importantly, the degradation of water-soluble pollutants has been achieved. Even after 10 degradation cycles, the degradation efficiency can still reach 92.6%, showing that CQD/BiOBr-E has excellent long-term degradation stability. The active species capture experiment demonstrated that ·O2− and h+ are the main active species. With the agaric-hydrogel as the photothermal layer, the assembled interfacial evaporator reached an evaporation rate of 1.52 kg m−2 h−1. This multifunctional interfacial evaporator is designed to provide solutions for environmental pollution and water shortage problems.