Recent progress on carbon based desalination membranes and carbon nanomaterial incorporated non-polyamide desalination membranes
Recent progress on carbon based desalination membranes and carbon nanomaterial incorporated non-polyamide desalination membranes
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DOI：
10.1016/j.jece.2021.105762
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发表时间：
2021-08
影响因子：
7.7
通讯作者：
Yi Wang;Qiang Li;G. Tang;Nanxin Zhang
中科院分区：
文献类型：
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作者：
Yi Wang;Qiang Li;G. Tang;Nanxin Zhang
膜分离技术以其高效、低能耗的优点在水处理中得到了广泛的应用。与传统的聚酰胺膜相比，新型非聚酰胺膜具有独特的物理化学结构和表面性能。碳基纳米材料的引入进一步赋予了膜优异的分离性能和对各种进料水的耐受性以及长的使用寿命。综述了碳纳米管、石墨烯、碳量子点、多孔炭和活性炭等碳基纳米材料在非聚酰胺脱盐膜中的应用研究进展。碳基纳米材料的独特性能在评论的第一部分进行了讨论。全面论述了新型无支撑层碳基自支撑膜的脱盐性能。重点是报告碳基纳米材料在制造不同非聚酰胺膜中的利用，包括反渗透（RO）膜、正渗透（FO）膜、纳滤（NF）膜、膜蒸馏（MD）膜和渗透蒸发（PV）膜。详细总结和分析了碳纳米材料对非聚酰胺膜的水通量、脱盐率、抗污染性、力学性能和耐氯性能的影响。讨论了化学改性、孔隙率、亲水性等膜的微观结构与上述关键性能的关系。并从技术挑战、商业化挑战和环境影响/可持续性等方面提出了该领域的发展挑战和研究机遇。
The membrane based separation technology has been widely applied in water treatment, due to its high efficiency and lower energy consumption. Compared with the traditional polyamide membrane, the novel non-polyamide membrane possesses unique physicochemical structures and surface properties. The introduction of carbon based nanomaterials further endows the membrane with excellent separation performances and resistance to the various feed water and long utilization duration. This paper intends to review the state-of-the-art application of carbon based nanomaterials on the non-polyamide desalination membrane, including carbon nanotubes (CNTs), graphene, carbon quantum dots (CQDs), porous carbon and activated carbon. The exclusive properties of carbon based nanomaterials are discussed in the initial section of the review. The novel carbon based free-standing membranes without supporting layer for desalination are comprehensively addressed. The focus is placed on reporting the utilization of carbon based nanomaterials in the fabrication of the different non-polyamide membranes, including reverse osmosis (RO) membrane, forward osmosis (FO) membrane, nanofiltration (NF) membrane, membrane distillation (MD) membrane and pervaporation (PV) membrane. The effects on the non-polyamide membrane performances including water flux, salt rejection, anti-fouling, mechanical properties, and chlorine resistance by incorporating the carbon nanomaterials are detailedly summarized and analyzed. We also discuss the relationship between the membrane microstructure such as chemical modification, porosity and hydrophilicity and key performance mentioned above. Furthermore, the development challenges and research opportunities in this field are also proposed from the aspects of technological challenges, commercialization challenges and environmental impacts/sustainability.