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Carbon/zeolite 13X composition for atmospheric water harvesting (AWH) application in arid regions
Adsorption ( IF 3.3 ) Pub Date : 2024-04-19 , DOI: 10.1007/s10450-024-00476-5
Ali Mehdikhani , Esmaeil Salahi , Jahangir Shahmoradi

To develop atmospheric water harvesting (AWH) technology, Zeolite 13X (Z) powder was hydrothermally produced with the addition of different grain sizes of carbon black additive (C) to adsorb air moisture at night and release the water adsorbed by solar irradiation during the day. Various characterization techniques were utilized, including X-ray diffractometry, Brunauer–Emmett–Teller (BET) nitrogen adsorption, field emission scanning electron microscopy (FESEM), UV‒Vis analysis, and a solar simulator, It was determined that the composition of 95%zeolite 13X-5% carbon black with a particle size of ~50 nanometers (ZC55) yielded the best result. The mentioned composition (ZC55) after one hour of exposure under a standard solar simulator flux of 1000 W/m2 by bringing the temperature of the composition to 110°C achieved the highest moisture removal in the composite. This compound evaporated 50% of the adsorbed water after one hour (0.15 g/g), from 0.31 g/g sorption capacity.



中文翻译:

用于干旱地区大气水收集 (AWH) 应用的碳/沸石 13X 组合物

为了开发大气水收集(AWH)技术,沸石13X(Z)粉末通过水热法生产,并添加不同粒径的炭黑添加剂(C),以在夜间吸收空气中的水分,并在白天释放太阳辐射吸收的水份。利用各种表征技术,包括 X 射线衍射、Brunauer-Emmett-Teller (BET) 氮气吸附、场发射扫描电子显微镜 (FESEM)、UV-Vis 分析和太阳模拟器,确定了 95粒径约为 50 纳米 (ZC55) 的 %沸石 13X-5% 炭黑产生了最佳结果。在1000W/m 2的标准太阳模拟器通量下暴露一小时后,通过使组合物的温度达到110℃,上述组合物(ZC55)实现了复合材料中最高的水分去除。该化合物在一小时后蒸发了 50% 的吸附水 (0.15 g/g),吸附容量为 0.31 g/g。

更新日期:2024-04-21
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