Low-Cost, Sustainable, and Environmentally Sound Cellulose Absorbent with High Efficiency for Collecting Methane Bubbles from Seawater,ACS Sustainable Chemistry & Engineering

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Low-Cost, Sustainable, and Environmentally Sound Cellulose Absorbent with High Efficiency for Collecting Methane Bubbles from Seawater
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-04-11 00:00:00 , DOI: 10.1021/acssuschemeng.8b00146
Nan Li ₁ , Wei Chen ₂ , Guangxue Chen ₁ , Xiaofang Wan ₁ , Junfei Tian ₁

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The use of natural materials to solve environmental problems is intended to decrease the burden on the global environment. In this paper, we describe a natural, repeatable, and low-cost method for terminating methane bubbles under water before they release into the atmosphere. A cellulose aerogel with porous structure and large surface area was fabricated via combining a dry pulp disintegration process with freeze-drying. The aerogel became superhydrophobic after it was modified with methyltrimethoxysilane (MTMS); therefore, it was able to effectively collect and store transport methane bubbles under water. The hydrophobic cellulose aerogel (HCA) exhibited exceptional performance for collecting methane bubbles under both static and dynamic absorption-release conditions. We hope this work will inspire alternative methods for the exploitation and elimination of environmental methane with the potential to alleviate global warming.

中文翻译：

低成本，可持续，对环境无害的纤维素吸收剂，可高效收集海水中的甲烷气泡

使用天然材料解决环境问题的目的是减轻全球环境的负担。在本文中，我们描述了一种自然，可重复且低成本的方法，可在甲烷气泡释放到大气中之前终止其在水中的作用。通过将干纸浆崩解过程与冷冻干燥相结合，制得了具有多孔结构和大表面积的纤维素气凝胶。气凝胶经甲基三甲氧基硅烷（MTMS）改性后变成超疏水性；因此，它能够有效地收集和储存水下的运输甲烷气泡。疏水性纤维素气凝胶（HCA）在静态和动态吸收释放条件下均表现出出色的收集甲烷气泡的性能。

更新日期：2018-04-11

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