Two-Dimensional Ti3C2Tx MXene/GO Hybrid Membranes for Highly Efficient Osmotic Power Generation.,Environmental Science & Technology

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Two-Dimensional Ti3C2Tx MXene/GO Hybrid Membranes for Highly Efficient Osmotic Power Generation.
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2020-02-12 , DOI: 10.1021/acs.est.9b05100
Haiping Gao ₁ , Wensi Chen ₁ , Chunyan Xu ₁ , Su Liu ₁ , Xin Tong ₁ , Yongsheng Chen ₁

Affiliation

Osmotic power has emerged as one of the promising candidates for clean and renewable energy. However, the advancement of present osmotic power-harvesting technologies, specifically pressure-retarded osmosis (PRO) in this work, is hindered by the unsatisfactory membrane transport properties. Herein, we demonstrate the freestanding transition-metal carbides and graphene oxide hybrid membranes as high-performance PRO membranes. Due to the elimination of internal concentration polarization, the freestanding hybrid membrane can achieve a record-high power density up to approximately 56.4 W m-2 with 2.0 M NaCl as the draw solution and river water (0.017 M) as the feed water at an applied hydraulic pressure difference of 9.66 bar. In addition, the hybrid membranes exhibit enhanced antifouling potential and antibacterial activity. The facile fabrication of the hybrid membranes shed light on a new membrane development platform for the highly anticipated osmotic power-harvesting technologies.

中文翻译：

二维Ti3C2Tx MXene / GO混合膜，用于高效渗透发电。

渗透力已成为清洁和可再生能源的有希望的候选者之一。然而，由于膜运输特性不令人满意，阻碍了当前渗透动力收集技术的发展，特别是在这项工作中的压力延迟渗透（PRO）。在本文中，我们展示了独立式过渡金属碳化物和氧化石墨烯杂化膜作为高性能PRO膜。由于消除了内部浓度极化，这种独立的混合膜可以在2.0 M NaCl作为汲取溶液和河水（0.017 M）作为给水的情况下达到约56.4 W m-2的创纪录的高功率密度。施加的液压差为9.66 bar。另外，杂化膜表现出增强的防污潜力和抗菌活性。

更新日期：2020-02-24

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