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Biomimetic Ultra‐Black Sponge Derived from Loofah and Co‐MOF for Long‐Term Solar‐Powered Vapor Generation and Desalination
Solar RRL ( IF 6.0 ) Pub Date : 2021-03-26 , DOI: 10.1002/solr.202000817 Hongqiang Wang 1 , Chen Zhang 1 , Zhihua Zhang 1 , Bin Zhou 1 , Jun Shen 1 , Ai Du 1
Solar RRL ( IF 6.0 ) Pub Date : 2021-03-26 , DOI: 10.1002/solr.202000817 Hongqiang Wang 1 , Chen Zhang 1 , Zhihua Zhang 1 , Bin Zhou 1 , Jun Shen 1 , Ai Du 1
Affiliation
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Designing ultra‐black materials with strong and broadband light absorption and efficient photothermal conversion properties is of great importance in many fields, including camouflage, catalysis, thermal therapy, and solar energy conversion. The West African Gaboon viper (Bitis rhinoceros), a master of camouflage, features black spots on its dorsal scales. The crest‐ridge structure in its black scales has been proven to be a typical antireflection structure. Herein, an artificial biomimetic ultra‐black sponge (BUBS) that imitates the crest‐ridge structure in the black scales of B. rhinoceros is successfully fabricated through growth of vertically aligned carbon nanosheet arrays derived from cobalt‐based metal–organic framework (Co‐MOF) on a loofah sponge. The vertically aligned carbon nanosheet arrays result in enhanced broadband light absorption (up to 97.08% on average) and photothermal conversion (equilibrium temperature of 80.7 °C under 1 sun illumination) of BUBS. Benefiting from its efficient light absorption and photothermal conversion, the BUBS is incorporated into solar‐powered vapor generation and desalination devices. The BUBS shows a higher water evaporation rate and efficiency of 1.93 kg m−2 h−1 and 98.5%, respectively, compared with other state‐of‐the‐art devices under 1 sun illumination. Furthermore, the BUBS also shows continuous and high water evaporation rates and excellent salt‐rejection in various brines, ensuring its potential application in solar‐powered desalination.
中文翻译：
丝瓜络和MOF衍生的仿生超黑海绵，可长期用于太阳能蒸汽产生和脱盐
设计具有强的宽带光吸收能力和有效的光热转换特性的超黑材料在许多领域都非常重要，包括伪装，催化，热疗法和太阳能转换。伪装大师西非狒狒（Bitis rhinoceros）在其背鳞上有黑点。黑色标度的脊脊结构已被证明是典型的抗反射结构。此处，是一种仿生的超黑海绵仿生海绵（BUBS），其模仿黑犀牛的黑鳞中的脊脊结构通过在丝瓜络海绵上生长源自钴基金属有机框架（Co-MOF）的垂直排列的碳纳米片阵列，成功制造出了这种产品。垂直排列的碳纳米片阵列可增强BUBS的宽带光吸收率（平均高达97.08％）和光热转化率（在1个阳光照射下平衡温度为80.7°C）。得益于其高效的光吸收和光热转换，BUBS被集成到太阳能蒸汽产生和脱盐装置中。BUBS显示出更高的水蒸发速率，效率为1.93 kg m -2 h -1与其他最先进的设备在1个太阳光照射下相比，分别降低了98.5％和98.5％。此外，BUBS还显示出持续且高的水蒸发速率，并在各种盐水中具有出色的排盐性能，从而确保了其在太阳能淡化中的潜在应用。
更新日期：2021-05-05
中文翻译：
丝瓜络和MOF衍生的仿生超黑海绵，可长期用于太阳能蒸汽产生和脱盐
设计具有强的宽带光吸收能力和有效的光热转换特性的超黑材料在许多领域都非常重要，包括伪装，催化，热疗法和太阳能转换。伪装大师西非狒狒（Bitis rhinoceros）在其背鳞上有黑点。黑色标度的脊脊结构已被证明是典型的抗反射结构。此处，是一种仿生的超黑海绵仿生海绵（BUBS），其模仿黑犀牛的黑鳞中的脊脊结构通过在丝瓜络海绵上生长源自钴基金属有机框架（Co-MOF）的垂直排列的碳纳米片阵列，成功制造出了这种产品。垂直排列的碳纳米片阵列可增强BUBS的宽带光吸收率（平均高达97.08％）和光热转化率（在1个阳光照射下平衡温度为80.7°C）。得益于其高效的光吸收和光热转换，BUBS被集成到太阳能蒸汽产生和脱盐装置中。BUBS显示出更高的水蒸发速率，效率为1.93 kg m -2 h -1与其他最先进的设备在1个太阳光照射下相比，分别降低了98.5％和98.5％。此外，BUBS还显示出持续且高的水蒸发速率，并在各种盐水中具有出色的排盐性能，从而确保了其在太阳能淡化中的潜在应用。
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