Surfactant-assisted synthesis of hierarchical NH2-MIL-125 for the removal of organic dyes

被引：60
作者：
Hu, Shen [1 ]
Liu, Min [1 ]
Li, Keyan [1 ]
Song, Chunshan [1 ,2 ,3 ]
Zhang, Guoliang [4 ]
Guo, Xinwen [1 ]
机构：
[1] Dalian Univ Technol, Sch Chem Engn, PSU DUT Joint Ctr Energy Res, State Key Lab Fine Chem, Dalian 116024, Peoples R China
[2] Penn State Univ, PSU DUT Joint Ctr Energy Res, EMS Energy Inst, University Pk, PA 16802 USA
[3] Penn State Univ, Dept Energy & Mineral Engn, University Pk, PA 16802 USA
[4] Zhejiang Univ Technol, Coll Biol & Environm Engn, Hangzhou 310014, Zhejiang, Peoples R China
来源：
RSC ADVANCES | 2017年 / 7卷 / 01期
基金：
中国国家自然科学基金;
关键词：
LOW-COST ADSORBENTS; CTAB-SILICA FILMS; WASTE-WATER; EMERGING CONTAMINANTS; DIRECTED SYNTHESIS; FACILE SYNTHESIS; FRAMEWORKS; PHOTOCATALYSIS; ADSORPTION; NANOCOMPOSITE;
D O I：
10.1039/c6ra25745c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
NH2-MIL-125(Ti) is a promising microporous MOF material which has potential applications in photocatalytic and catalytic oxidation reactions. In this work, a facile surfactant assistant synthetic method was employed to obtain hierarchical NH2-MIL-125 with the mesoporosity for photocatalytic degradation of organic dyes. The as-prepared NH2-MIL-125 showed excellent dye removal efficiency due to the combination of improved adsorption and photodegradation. Compared with the microporous NH2-MIL-125, the adsorption capacity of organic dyes increased 28% on hierarchical NH2-MIL-125 and the photodegradation rate approximately increased 2.4 times according to the structure with abundant mesopores and macropores. The morphology of hierarchical NH2-MIL-125 can also be modulated from tetragonal plates to truncated bipyramids and octahedrons, and the obtained catalyst shows similar enhanced photodegradation performance.
引用
收藏
页码：581 / 587
页数：7
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