Porous Carbon and Carbon/Metal Oxide Composites by Ice Templating and Subsequent Pyrolysis

被引:14
|
作者
Fu, Qingshan [1 ,2 ]
Wen, Lang [1 ]
Zhang, Lei [1 ]
Chen, Xuedan [1 ]
Zhang, Haifei [2 ]
机构
[1] Sichuan Univ Sci & Engn, Coll Mat Sci & Engn, Zigong 643000, Peoples R China
[2] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England
基金
英国工程与自然科学研究理事会;
关键词
ORGANIC FRAMEWORK UIO-66; NANOPOROUS CARBONS; METHYLENE-BLUE; ACTIVATED CARBON; WATER-TREATMENT; HIGH-CAPACITY; ADSORPTION; MONOLITHS; CATALYSTS; PERFORMANCE;
D O I
10.1021/acs.iecr.9b01081
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
There are continuously strong interests for the preparation of carbon and carbon composite materials because of their excellent properties and very broad applications. We report here the fabrication of porous carbon and carbon/metal oxide composites via an ice-templating approach and a carbonization process. Porous polymer and polymer/metal-organic framework (MOF) composites, namely poly(4-styrenesulfonate) and UiO-66 nanoparticles, are first prepared via a simple freeze-casting process. The material morphology and loading of MOF particles can be easily adjusted by varying initial suspension compositions during the freeze-casting process. These ice-templated materials are subsequently carbonized under Ar, producing carbon and carbon/ZrO2 composites with ice-templated macropores and micropores/mesopores. The carbonized materials are evaluated as adsorbents for dye removal from aqueous solution, exhibiting high performance in general for the adsorption of methylene blue, particularly achieving the high adsorption capacity of 96 mg g(-1) (10 mg adsorbent/5 cm(3) aqueous dye solution) with the porous carbon material.
引用
收藏
页码:14312 / 14322
页数:11
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