Size- and morphology-controlled NH2-MIL-53(Al) prepared in DMF-water mixed solvents
发表时间：2019-03-09
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- 论文类型：
- 期刊论文
- 第一作者：
- Cheng, Xinquan
- 通讯作者：
- Liu, M (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, PSU DUT Joint Ctr Energy Res, Sch Chem Engn, Dalian 116024, Peoples R China.
- 合写作者：
- Zhang, Anfeng,Hou, Keke,Liu, Min,Wang, Yingxia,Song, Chunshan,Zhang, Guoliang,Guo, Xinwen
- 发表时间：
- 2013-10-07
- 发表刊物：
- DALTON TRANSACTIONS
- 收录刊物：
- SCIE、EI、PubMed、Scopus
- 文献类型：
- J
- 卷号：
- 42
- 期号：
- 37
- 页面范围：
- 13698-13705
- ISSN号：
- 1477-9226
- 摘要：
- We present here a simple solvothermal method to fabricate metal-organic framework NH2-MIL-53(Al) crystals with controllable size and morphology just by altering the ratio of water in the DMF-water mixed solvent system without the addition of any surfactants or capping agents. With increasing the volume ratio of water in the mixed solvents, a series of NH2-MIL-53(Al) crystals with different sizes and morphologies were synthesized. The average size of the smallest crystal is 76 +/- 20 nm, which provides us a simple and environmentally friendly way to prepare nanoscale MOFs. The largest BET surface area of these samples is 1882 m(2) g(-1) that is mainly contributed by its micropore surface area, and its corresponding micropore volume is 0.83 cm(3) g(-1), which have greatly extended its application in the fields of gas adsorption and postsynthetic modification. All these samples were characterized by SEM, XRD, N-2 adsorption/desorption, TGA and FT-IR. Then a mechanism for the impact of the water ratio on the crystal size and morphology is presented and discussed.
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