Developing advanced membranes with high separation performance and robust mechanical properties is critical to the current water crisis. Herein, a general and scalable fabrication of nanoparticles (NPs)@reduced graphene oxide (rGO) membranes with significantly expanded nanochannels meanwhile ordered laminar structures using in situ synthesized NPs@rGO nanosheets as building blocks is reported. Size- and density-controllable NPs were uniformly grown on the regularly stacked rGO nanosheets through coordination, followed by filtration-deposition on inner surface of porous ceramic tubes. The NPs bonded rGO building blocks enabled the as-prepared membranes 1–2 orders of magnitudes higher water permeance than the counterparts while keeping excellent rejections for various organic matters and ions. Moreover, the industrially preferred GO-based tubular membrane exhibited an extraordinary structural stability under high-pressure and cross-flow process of water purification, which is considered as a notable step toward realizing scalable GO-based membranes. © 2017 American Institute of Chemical Engineers AIChE J, 2017

中文翻译：

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纳米颗粒@rGO膜可在保持选择性的情况下大大提高水的渗透性和结构稳定性

开发具有高分离性能和强大机械性能的先进膜对当前的水危机至关重要。在本文中，报道了使用原位合成的NPs @ rGO纳米片作为构建块的具有显着扩展的纳米通道的纳米颗粒（NPs）还原的氧化石墨烯（rGO）膜的一般且可扩展的制造。通过配位，在可规则堆叠的rGO纳米片上均匀生长可控制尺寸和密度的NP，然后在多孔陶瓷管的内表面进行过滤沉积。NPs结合的rGO构建基块使制得的膜的透水率比对应的膜高1-2个数量级，同时保持了对各种有机物和离子的优异排斥性能。而且，工业上优选的基于GO的管状膜在高压和错流的水净化过程中表现出非凡的结构稳定性，这被认为是实现可扩展的基于GO的膜的重要步骤。©2017美国化学工程师学会AIChE的Ĵ，2017年