Electrospun Cadmium Selenide Nanoparticles-Loaded Cellulose Acetate Fibers for Solar Thermal Application
Electrospun Cadmium Selenide Nanoparticles-Loaded Cellulose Acetate Fibers for Solar Thermal Application
复制标题
DOI：
10.3390/nano10071329
复制
发表时间：
2020-07-01
期刊：
影响因子：
5.3
通讯作者：
Kong, Lingyan
中科院分区：
文献类型：
--
作者：
Angel, Nicole;Vijayaraghavan, S. N.;Kong, Lingyan
太阳能热技术为将太阳能直接转换为热能以用于海水淡化等应用提供了一种有前途的方法。为了有效地发挥太阳能热转换的最佳潜力，需要构建具有局部加热功能的组件。具体来说，光活性半导体纳米颗粒在用作独立的光吸收剂时，已成功证明了提高太阳能蒸汽效率的能力。此外，生物基纤维还表现出低导热性光腐蚀。在这项工作中，醋酸纤维素（CA）纤维负载了硒化镉（CdSe）纳米颗粒，用于太阳能热转换，然后评估其最终的形态以及转换潜力和效率。采用静电纺丝技术，通过调整 CA/CdSe 比率来制造负载 CdSe 的 CA 纤维，以提高太阳能转换效率。对 CdSe 负载 CA 纤维的微观结构和化学成分进行了表征。此外，还对光学太阳光吸收性能进行了评估，结果表明负载CdSe纳米颗粒的CA纤维具有显着提高太阳能吸收的潜力。 1太阳光（100 mW/cm(2)）下的光热转换表明，CdSe纳米颗粒可以将温度提高至43摄氏度。负载CdSe的CA纤维被证明是一种可行且有前途的混合材料，可实现高效的太阳热转换。
Solar thermal techniques provide a promising method for the direct conversion of solar energy to thermal energy for applications, such as water desalination. To effectively realize the optimal potential of solar thermal conversion, it is desirable to construct an assembly with localized heating. Specifically, photoactive semiconducting nanoparticles, when utilized as independent light absorbers, have successfully demonstrated the ability to increase solar vapor efficiency. Additionally, bio-based fibers have shown low thermal conductive photocorrosion. In this work, cellulose acetate (CA) fibers were loaded with cadmium selenide (CdSe) nanoparticles to be employed for solar thermal conversion and then subsequently evaluated for both their resulting morphology and conversion potential and efficiency. Electrospinning was employed to fabricate the CdSe-loaded CA fibers by adjusting the CA/CdSe ratio for increased solar conversion efficiency. The microstructural and chemical composition of the CdSe-loaded CA fibers were characterized. Additionally, the optical sunlight absorption performance was evaluated, and it was demonstrated that the CdSe nanoparticles-loaded CA fibers have the potential to significantly improve solar energy absorption. The photothermal conversion under 1 sun (100 mW/cm(2)) demonstrated that the CdSe nanoparticles could increase the temperature up to 43 degrees C. The CdSe-loaded CA fibers were shown as a feasible and promising hybrid material for achieving efficient solar thermal conversion.