期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 342, 期 2, 页码 579-585出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2009.10.037
关键词
Mesoporous materials; Synthesis; Nitrogen-containing; Resin polymers; Templating; Triblock copolymers; Self-assembly
资金
- NSF of China [20721063, 20821140537, 20890123]
- State Key Basic Research Program of the PRC [2006CB932302, 2009CB930400]
- Science and Technology Commission of Shanghai Municipality [08DZ2270500]
- Shanghai Nanotech Promotion Center [0852nm00100]
- Shanghai Leading Academic Discipline [B108]
Ordered nitrogen-containing mesoporous carbonaceous polymers have been synthesized via a direct triblock-copolymer-templating process by using soluble, low-molecular-weight urea-phenol-formaldehyde (UPF) resin as an organic precursor and amphiphilic triblock copolymer Pluronic F127 as a template. Characterization using small-angle X-ray scattering (SAXS), N-2 sorption, transmission electron microscopy (TEM), elemental analysis, thermogravimetric analysis (TG), Fourier transform infrared (FTIR), and water adsorption techniques reveals that the obtained nitrogen-containing mesoporous polymers possess ordered structures, high Surface areas (385-420 m(2)/g), large pore sizes (3.1-3.6 nm) and pore volumes (0.25-0.44 cm(3)/g), and high nitrogen content (2.69-2.94%). Various mesostructures, such as two-dimensional (2-D) hexagonal (space group, p6mm) and 3-D body-centered Cubic (lm (3) over barm) symmetries, can be obtained by simply adjusting the mass ratio of UPF/F127. The content of nitrogen in the mesoporous polymers can also be easy varied by changing the amount Of Urea and the reaction time of UPF resin precursors. Compared with the nitrogen-free mesoporous polymer, the obtained mesoporous carbonaceous polymers show a more hydrophilic nature and thus evidently higher water adsorption capacity. The presence of nitrogen groups can also significantly improve the adsorption performance of Fe(III) ions. (C) 2009 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据