Enhanced optical absorption and mechanisms of A/B-sites co-doped LaCrO3-based perovskite coating

Yu, Liuxu; Wang, Mingyuan; Hou, Haigang; Liu, Guiwu; Zhang, Xiangzhao; Wan, Neng; Liu, Junlin; Qiao, Guanjun

doi:10.1016/j.apsusc.2022.153289

Cited by 5 publications

(1 citation statement)

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“…La 1−x Ca x CrO 3 ceramics, representative infrared-responsive semiconductor materials, have been extensively investigated and applied in optics [30][31][32] due to their wide spectral absorption ranges, excellent corrosion resistances, high stability, and moderate costs. Remarkably, Lu et al [30] reported that the La 0 .…”

Section: Introductionmentioning

confidence: 99%

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

Zhang,

Xue,

Zhang

et al. 2024

Materials

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The use of solar interface evaporation for seawater desalination or sewage treatment is an environmentally friendly and sustainable approach; however, achieving efficient solar energy utilization and ensuring the long-term stability of the evaporation devices are two major challenges for practical application. To address these issues, we developed a novel ceramic fiber@bioderived carbon composite aerogel with a continuous through-hole structure via electrospinning and freeze-casting methods. Specifically, an aerogel was prepared by incorporating perovskite oxide (Ca0.25La0.5Dy0.25)CrO3 ceramic fibers (CCFs) and amylopectin-derived carbon (ADC). The CCFs exhibited remarkable photothermal conversion efficiencies, and the ADC served as a connecting agent and imparted hydrophilicity to the aerogel due to its abundant oxygen-containing functional groups. After optimizing the composition and microstructure, the (Ca0.25La0.5Dy0.25)CrO3 ceramic fiber@biomass-derived carbon aerogel demonstrated remarkable properties, including efficient light absorption and rapid transport of water and solutes. Under 1 kW m−2 light intensity irradiation, this novel material exhibited a high temperature (48.3 °C), high evaporation rate (1.68 kg m−2 h−1), and impressive solar vapor conversion efficiency (91.6%). Moreover, it exhibited long-term stability in water evaporation even with highly concentrated salt solutions (25 wt%). Therefore, the (Ca0.25La0.5Dy0.25)CrO3 ceramic fiber@biomass-derived carbon aerogel holds great promise for various applications of solar interface evaporation.

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