Low-Temperature Rapid Synthesis and Performance of the MIL-100(Fe) Monolithic Adsorbent for Dehumidification,Industrial & Engineering Chemistry Research

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Low-Temperature Rapid Synthesis and Performance of the MIL-100(Fe) Monolithic Adsorbent for Dehumidification
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-03-27 , DOI: 10.1021/acs.iecr.9b06767
Yanshu Luo ₁ , Bingqiong Tan ₁ , Xianghui Liang ₁ , Shuangfeng Wang ₁ , Xuenong Gao ₁ , Zhengguo Zhang ₁ , Yutang Fang ₁

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MIL-100(Fe) has been proven to have good hydrothermal stability and high vapor uptake and is considered as a promising dehumidification material. However, reduction of the production cost and assembly of the adsorbent and glass fiber paper substrate into the MIL-100(Fe) monolith are challenging. This work presented a dry gel conversion strategy for the rapid synthesis of the MIL-100(Fe) monolith at low temperatures. The porosity and crystalline phase of the products obtained under different crystallization temperatures and times were carefully studied. XRD and SEM characterization indicated that the MIL-100(Fe) crystal could be conveniently synthesized on the substrate at a low temperature of 50–70 °C and in a short time of 2–6 h. The spherical particles assembled from crystals dispersed evenly and tightly on the glass fiber paper. The synthesized MIL-100(Fe) monolith had a thickness of about 270 μm and a MIL-100(Fe) loading of 77.7%. Dynamic and static water vapor adsorption tests revealed that the monolithic adsorbent obtained at 50 °C for 6 h had the largest vapor saturation adsorption capacity (0.581 g/g) and the fastest adsorption rate. Moreover, the monolith owned a low regeneration temperature (below 80 °C) and a satisfactory cycle stability. Convenient equipment, mild synthetic conditions, low renewable energy consumption, and good performance will promote its application in the rotary dehumidification system.

中文翻译：

MIL-100（Fe）整体式除湿剂的低温快速合成及其性能

MIL-100（Fe）已被证明具有良好的水热稳定性和较高的蒸气吸收率，被认为是有前途的除湿材料。但是，降低生产成本以及将吸附剂和玻璃纤维纸基材组装成MIL-100（Fe）整体材料具有挑战性。这项工作提出了一种干凝胶转化策略，用于在低温下快速合成MIL-100（Fe）整体材料。仔细研究了在不同结晶温度和时间下获得的产物的孔隙率和结晶相。XRD和SEM表征表明，MIL-100（Fe）晶体可以在50-70°C的低温和2-6 h的短时间内在基底上方便地合成。由晶体组装而成的球形颗粒均匀而紧密地分散在玻璃纤维纸上。合成的MIL-100（Fe）整料的厚度约为270μm，MIL-100（Fe）的负载量为77.7％。动态和静态水蒸气吸附试验表明，在50°C下获得的整体吸附剂6 h具有最大的蒸气饱和吸附容量（0.581 g / g）和最快的吸附速率。此外，整料具有低的再生温度（低于80℃）和令人满意的循环稳定性。便利的设备，温和的合成条件，低的可再生能源消耗以及良好的性能将促进其在旋转除湿系统中的应用。581 g / g）和最快的吸附速率。此外，整料具有低的再生温度（低于80℃）和令人满意的循环稳定性。便利的设备，温和的合成条件，低的可再生能源消耗以及良好的性能将促进其在旋转除湿系统中的应用。581 g / g）和最快的吸附速率。此外，整料具有低的再生温度（低于80℃）和令人满意的循环稳定性。便利的设备，温和的合成条件，低的可再生能源消耗以及良好的性能将促进其在旋转除湿系统中的应用。

更新日期：2020-04-24

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