Versatile Adamantane-based porous polymers with enhanced microporosity for efficient CO2 capture and iodine removal

被引:125
作者
Chen, Dongyang [1 ]
Fu, Yu [1 ]
Yu, Wenguang [1 ]
Yu, Guipeng [1 ,2 ]
Pan, Chunyue [1 ,2 ]
机构
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
[2] Cent S Univ, Hunan Prov Key Lab Efficient & Clean Utilizat Man, Changsha 410083, Hunan, Peoples R China
基金
美国国家科学基金会;
关键词
Nanoporous organic polymer; CO2; capture; Iodine adsorption; Promoted microprosity; 1,3,5,7-Tetraphenyladamantane; Hierarchically porous structure; HIGH-SURFACE-AREA; HIGHLY EFFICIENT; CARBON-DIOXIDE; ORGANIC FRAMEWORKS; VOLATILE IODINE; FLUIDIZED-BED; GAS-STORAGE; ADSORPTION PERFORMANCE; BUILDING-BLOCKS; LINKED POLYMER;
D O I
10.1016/j.cej.2017.10.133
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A series of multifunctional nanoporous organic polymers with high microporosity have been successfully synthesized via Friedel-Crafts alkylation and Scholl coupling reactions. Porous properties are well-controllable by simply regulating the lengths and rigidities of linkers, where the rigid tetrahedral building block, i.e. 1,3,5,7-tetraphenyladamantane, knitted with flexible alkyl chains leads to a hierarchically porous structure of NOP-53. Such amorphous materials derived from the high rigid building block achieve high surface areas (1178 m(2) g(-1) for NOP-54) and substantially improved micro-pore volumes (0.86 cm(3) g(-1), V-micro/V-total = 65%). The as-made porous network NOP-54 featuring highest microporosity can uptake 14.2 wt% CO2 at 273 K and 1 bar, and good selectivity ratios for CO2 adsorption over N-2 (56.1) and CH4 (13.9) at 273 K are achieved. Furthermore, such polymers display excellent iodine vapor uptake of up to 202 wt% and shows remarkable capability as iodine sorbent in solution. These results are significant for constructing accessible aromatic networks with promoted microporosity targeting for environmental challenges.
引用
收藏
页码:900 / 906
页数:7
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