Synthesis of Ordered Mesoporous Silica with Tunable Morphologies and Pore Sizes via a Nonpolar Solvent-Assisted Stober Method

被引:171
|
作者
Wang, Xiqing [1 ]
Zhang, Yu [1 ]
Luo, Wei [2 ]
Elzatahry, Ahmed A. [4 ]
Cheng, Xiaowei [1 ]
Alghamdi, Abdulaziz [3 ]
Abdullah, Aboubakr M. [5 ]
Deng, Yonghui [1 ,6 ]
Zhao, Dongyuan [1 ]
机构
[1] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Collaborat Innovat Ctr Chem Energy Mat,Dept Chem, State Key Lab Mol Engn Polymers,State Key Lab ASI, Shanghai 200433, Peoples R China
[2] Donghua Univ, Coll Mat Sci & Engn, Shanghai 201620, Peoples R China
[3] King Saud Univ, Dept Chem, Coll Sci, Riyadh 11451, Saudi Arabia
[4] Qatar Univ, Coll Arts & Sci, Mat Sci & Technol Program, POB 2713, Doha, Qatar
[5] Qatar Univ, Ctr Adv Mat, Doha 2713, Qatar
[6] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Transducer Technol, Shanghai 200050, Peoples R China
关键词
MOLECULAR-SIEVES; ADSORPTION; COPOLYMER; TRIBLOCK; MCM-41; FIBERS; IMMOBILIZATION; GROWTH;
D O I
10.1021/acs.chemmater.6b00499
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A facile nonpolar solvent-assisted Stober method has been developed to synthesize ordered mesoporous silica materials with tunable pore size and diverse morphologies and mesostructures by using cetyltrimethylammonium bromide as the template and tetraethyl orthosilicate as silica precursor in a simple aqueous-phase synthesis system. By simply changing the amount of n-hexane and ammonia-water in the system, ordered mesoporous silica with pore sizes of 2.7-10.5 nm, various morphologies (nanocubes, truncated nanocubes, core-shell microspheres, and twisted nanorods), a high surface area up to 888 m(2)/g, and a large pore volume of 1.55 cm(3)/g are synthesized. Owing to their highly hydrophilic surface, large and accessible pores, and high surface area, the mesoporous silica materials exhibit an excellent performance in adsorption of dye molecules of large dimension (1.6 nm) with a maximum adsorption capacity of 106 mg/g in 10 min at 200 mg/L initial Rhodamine B concentration.
引用
收藏
页码:2356 / 2362
页数:7
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