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Multifunctional Hydrothermal‐Carbonized Sugarcane for Highly Efficient Direct Solar Steam Generation
Solar RRL ( IF 6.0 ) Pub Date : 2021-01-12 , DOI: 10.1002/solr.202000782 Anyun Wei 1 , Kewen Cui 1 , Pengfei Wang 1 , Yufei Gu 1 , Xiaoyang Wang 1 , Xiaojiang Mu 1 , Yongzhi Tian 1 , Jianhua Zhou 1 , Zhiqiang Sun 1 , Yulian Chen 1 , Jiahong Zhang 1 , Jing Liu 1 , Lei Miao 1, 2, 3
Solar RRL ( IF 6.0 ) Pub Date : 2021-01-12 , DOI: 10.1002/solr.202000782 Anyun Wei 1 , Kewen Cui 1 , Pengfei Wang 1 , Yufei Gu 1 , Xiaoyang Wang 1 , Xiaojiang Mu 1 , Yongzhi Tian 1 , Jianhua Zhou 1 , Zhiqiang Sun 1 , Yulian Chen 1 , Jiahong Zhang 1 , Jing Liu 1 , Lei Miao 1, 2, 3
Affiliation
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Solar steam generation is an environmentally friendly water treatment method that produces clean water using solar energy. However, it is still a challenge to effectively prevent the performance deterioration when most photothermal conversion materials are used to evaporate high‐concentration salt‐containing wastewater or strong acid/alkali solution. Herein, a stable and effective solar evaporator is designed using natural sugarcane, where sucrose is simply dehydrated into carbon particles by hydrothermal reaction in sulfuric acid. With a honeycomb structure, it not only enables water transport capacity but also promotes sunlight absorption. Sulfuric acid hydrothermal carbonized sugarcane (SHCSC) can reach up to 95.36% solar absorption in a wide wavelength range (200–2500 nm) and a high evaporation rate of 2.32 kg m−2 h−1 under 1 sun illumination. More importantly, SHCSC has an excellent adsorption capacity with ion removal rate of 99.9% even under artificial wastewater containing 1000 mg L−1 of mixed metal ions. SHCSC also can perform efficiently and stably at a high evaporation rate above 2.2 kg m−2 h−1 in strong acidic or alkaline wastewater. These findings suggest that SHCSC can be potentially applied to the efficient harvest of clean water from the high‐concentration wastewater containing acid, alkali, and mixed metal ions.
中文翻译：
多功能热液碳化甘蔗，可直接高效产生太阳能蒸汽
产生太阳能蒸汽是一种环保的水处理方法，它利用太阳能产生清洁的水。但是，当大多数光热转化材料用于蒸发高浓度含盐废水或强酸/碱溶液时，如何有效防止性能下降仍然是一个挑战。本文中，使用天然甘蔗设计了稳定有效的太阳能蒸发器，其中蔗糖通过在硫酸中的水热反应简单地脱水成碳颗粒。蜂窝状结构，不仅可以提高水的输送能力，还可以促进日光的吸收。硫酸水热碳化甘蔗（SHCSC）在宽波长范围（200–2500 nm）和2.32 kg m -2的高蒸发速率下可达到高达95.36％的太阳吸收率在1个日光照射下 h -1。更重要的是，即使在含有1000 mg L -1的混合金属离子的人造废水中，SHCSC也具有出色的吸附能力，离子去除率为99.9％。SHCSC还可以在强酸性或碱性废水中以高于2.2 kg m -2 h -1的高蒸发速率高效稳定地运行。这些发现表明，SHCSC可以潜在地用于从含有酸，碱和混合金属离子的高浓度废水中有效收集干净的水。
更新日期：2021-03-10
中文翻译：
多功能热液碳化甘蔗，可直接高效产生太阳能蒸汽
产生太阳能蒸汽是一种环保的水处理方法，它利用太阳能产生清洁的水。但是，当大多数光热转化材料用于蒸发高浓度含盐废水或强酸/碱溶液时，如何有效防止性能下降仍然是一个挑战。本文中，使用天然甘蔗设计了稳定有效的太阳能蒸发器，其中蔗糖通过在硫酸中的水热反应简单地脱水成碳颗粒。蜂窝状结构，不仅可以提高水的输送能力，还可以促进日光的吸收。硫酸水热碳化甘蔗（SHCSC）在宽波长范围（200–2500 nm）和2.32 kg m -2的高蒸发速率下可达到高达95.36％的太阳吸收率在1个日光照射下 h -1。更重要的是，即使在含有1000 mg L -1的混合金属离子的人造废水中，SHCSC也具有出色的吸附能力，离子去除率为99.9％。SHCSC还可以在强酸性或碱性废水中以高于2.2 kg m -2 h -1的高蒸发速率高效稳定地运行。这些发现表明，SHCSC可以潜在地用于从含有酸，碱和混合金属离子的高浓度废水中有效收集干净的水。
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