Larger pore volume tetraphenyladamantane‐based hybrid porous polymers: Facile Friedel–Crafts preparation, CO2 capture, and Rhodamine B removal properties,Journal of Applied Polymer Science

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Larger pore volume tetraphenyladamantane‐based hybrid porous polymers: Facile Friedel–Crafts preparation, CO2 capture, and Rhodamine B removal properties
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-10-15 , DOI: 10.1002/app.48572
Yue Wu _{1,

2} , Yu Liu ₁ , Ruidi Dou ₁ , Wenjie Tang ₁ , Bin Sun ₁ , Tingting Gao ₁ , Zhizhou Yang ₂ , Guowei Zhou ₁

Affiliation

Synthesis of covalently linked porous polymers with high surface area and larger pore volume for two or more task‐specific functionalities is always a big challenge. In this article, the facile Friedel–Crafts reaction is employed to construct the hierarchical hybrid porous polymers (HPPs) from tetraphenyladamantane and octavinylsilsesquioxane. The resulting polymers, HPP‐1 to HPP‐3, possessed the surface areas from 1356 to 1511 m² g⁻¹, and the pore volumes from 2.05 to 2.67 cm³ g⁻¹. All these polymers feature micropores, mesopores, and macropores in nature. The resultant polymers exhibit high CO₂ adsorption capacity up to 2.0 mmol g⁻¹ (8.82 wt %), at 273 K, 1.0 bar, and the maximum Rhodamine B (RB) sorption capacity of 653.6 mg g⁻¹. To illustrate the adsorption process, the effects of factors, contact time, initial concentration, temperature, and pH value on the adsorption capacity of RB were studied. The adsorption equilibrium data displayed a better fitting to the Langmuir isotherm model than the Freundlich model and the adsorption kinetics fitted well with the pseudo‐second‐order kinetic model. The recycle experiments displayed that the capacity recovery was still higher than 95% after four cycles. Theses polymers are promising to be the adsorbents for capturing CO₂ and removing RB. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 136, 48572.

中文翻译：

较大孔体积的基于四苯基金刚烷的杂化多孔聚合物：简便的Friedel-Crafts制备，CO2捕集和若丹明B的去除特性

具有两个或多个任务特定功能的具有高表面积和较大孔体积的共价键连接的多孔聚合物的合成一直是一个巨大的挑战。在本文中，采用简便的Friedel-Crafts反应，由四苯基金刚烷和八乙烯基硅倍半氧烷构建分层的杂化多孔聚合物（HPP）。所得的聚合物HPP-1至HPP-3的表面积为1356至1511 m ² g ^-1，孔体积为2.05至2.67 cm ³ g ^-1。所有这些聚合物均具有自然界中的微孔，中孔和大孔。所得聚合物表现出高达2.0 mmol g ^-1的高CO ₂吸附能力（8.82 wt％），在273 K，1.0 bar和最大罗丹明B（RB）吸附能力为653.6 mg g ^-1。为了说明吸附过程，研究了因素，接触时间，初始浓度，温度和pH值对RB吸附能力的影响。吸附平衡数据显示出比Langundirch模型更好的拟合Langmuir等温线模型，并且吸附动力学与拟二阶动力学模型很好地拟合。循环实验表明，四个循环后容量回收率仍高于95％。这些聚合物有望成为捕获CO ₂和去除RB的吸附剂。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学 2020，136，48572。

更新日期：2020-01-21

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