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Sustainable Biochar-Based Solar Absorbers for High-Performance Solar-Driven Steam Generation and Water Purification
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-11-19 , DOI: 10.1021/acssuschemeng.9b06169 Lin Yang 1 , Guoliang Chen 1 , Nan Zhang 1 , Yunxiang Xu 1 , Xiaofeng Xu 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-11-19 , DOI: 10.1021/acssuschemeng.9b06169 Lin Yang 1 , Guoliang Chen 1 , Nan Zhang 1 , Yunxiang Xu 1 , Xiaofeng Xu 1
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Solar-driven interfacial steam generation is emerging as a green and sustainable technology for potential applications in sterilization, desalination, and water purification. Despite the encouraging progress to date, the solar absorbers of the interfacial steam generators generally are composed of costly and/or delicate nanostructures made from metal particles or semiconductor materials, which partially hinder their mass production for practical applications. Herein, the biomass Enteromorpha prolifera was successfully recycled to construct four biochar-based solar absorbers via a set of processing methods. The hydrophilic, hierarchically porous, and microtubular nanostructures of the carbonized E. prolifera contribute to synergistically efficient water pumping and steam generation of the solar absorbers. Inspired by the natural transpiration of trees, the two-dimensional interfacial steam generators based on the four solar absorbers attain good water evaporation rates of 1.1–1.3 kg m–2 h–1 and high photothermal conversion efficiencies of 80–84% under one sun. Specifically, the performance is among the best-performing solar steam generators constructed via biochar-based solar absorbers. The indoor and outdoor experiments demonstrate the first example of using green tide as a sustainable source for biochar-based solar absorbers and realizing cost-efficient and high-performance steam generation and clean water production.
中文翻译：
可持续的基于生物炭的太阳能吸收剂，用于高性能太阳能驱动的蒸汽产生和水净化
太阳能驱动的界面蒸汽产生正在成为一种绿色且可持续的技术，可用于杀菌，淡化和水净化的潜在应用。尽管迄今为止取得了令人鼓舞的进步，但是界面蒸汽发生器的太阳能吸收器通常由由金属颗粒或半导体材料制成的昂贵和/或精细的纳米结构组成，这部分地阻碍了其在实际应用中的大量生产。在这里，通过一组加工方法，成功地将生物质小肠虫生物质循环利用，以构建四种基于生物炭的太阳能吸收剂。碳化大肠埃希氏菌的亲水，分级多孔和微管纳米结构有助于协同高效地抽水和产生太阳能吸收器的蒸汽。受树木自然蒸腾的启发，基于四个太阳能吸收器的二维界面蒸汽发生器在1个太阳光下达到1.1–1.3 kg m –2 h –1的良好水蒸发速率和80–84％的高光热转换效率。具体而言，该性能是通过基于生物炭的太阳能吸收器构造的性能最佳的太阳能蒸汽发生器。室内和室外实验证明了使用绿潮作为生物炭基太阳能吸收剂的可持续来源并实现具有成本效益的高性能蒸汽产生和清洁水生产的第一个示例。
更新日期：2019-11-20
中文翻译：
可持续的基于生物炭的太阳能吸收剂，用于高性能太阳能驱动的蒸汽产生和水净化
太阳能驱动的界面蒸汽产生正在成为一种绿色且可持续的技术，可用于杀菌，淡化和水净化的潜在应用。尽管迄今为止取得了令人鼓舞的进步，但是界面蒸汽发生器的太阳能吸收器通常由由金属颗粒或半导体材料制成的昂贵和/或精细的纳米结构组成，这部分地阻碍了其在实际应用中的大量生产。在这里，通过一组加工方法，成功地将生物质小肠虫生物质循环利用，以构建四种基于生物炭的太阳能吸收剂。碳化大肠埃希氏菌的亲水，分级多孔和微管纳米结构有助于协同高效地抽水和产生太阳能吸收器的蒸汽。受树木自然蒸腾的启发，基于四个太阳能吸收器的二维界面蒸汽发生器在1个太阳光下达到1.1–1.3 kg m –2 h –1的良好水蒸发速率和80–84％的高光热转换效率。具体而言，该性能是通过基于生物炭的太阳能吸收器构造的性能最佳的太阳能蒸汽发生器。室内和室外实验证明了使用绿潮作为生物炭基太阳能吸收剂的可持续来源并实现具有成本效益的高性能蒸汽产生和清洁水生产的第一个示例。
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