The development of low-cost, efficient physisorbents is essential for gas adsorption and separation; however, the intrinsic tradeoff between capacity and selectivity, as well as the unavoidable shaping procedures of conventional powder sorbents, greatly limits their practical separation efficiency. Herein, an exceedingly stable iron-containing mordenite zeolite monolith with a pore system of precisely narrowed microchannels was self-assembled using a one-pot template- and binder-free process. Iron-containing mordenite monoliths that could be used directly for industrial application afforded record-high volumetric carbon dioxide uptakes (293 and 219 cubic centimeters of carbon dioxide per cubic centimeter of material at 273 and 298 K, respectively, at 1 bar pressure); excellent size-exclusive molecular sieving of carbon dioxide over argon, nitrogen, and methane; stable recyclability; and good moisture resistance capability. Column breakthrough experiments and process simulation further visualized the high separation efficiency.

开发低成本、高效的物理吸附剂对于气体吸附和分离至关重要；然而，容量和选择性之间的内在权衡，以及常规粉末吸附剂不可避免的成型程序，极大地限制了它们的实际分离效率。在本文中，使用一锅无模板和无粘合剂工艺自组装了一种极其稳定的含铁丝光沸石沸石整料，其孔隙系统具有精确狭窄的微通道。可直接用于工业应用的含铁丝光沸石整料提供了创纪录的高体积二氧化碳吸收量（在 273 和 298 K、1 巴压力下，每立方厘米材料分别吸收 293 和 219 立方厘米二氧化碳）；在氩气、氮气、和甲烷；稳定的可回收性；和良好的防潮能力。色谱柱突破实验和工艺模拟进一步显示了高分离效率。