Abstract
In this study, the stability of zeolitic imidazolate framework-8 (ZIF-8) was investigated in 7 common anions aqueous solutions. Experimental results showed that Cl−, SO4 2−, NO3 −, PO4 3−, and CO3 2− have insignificant change in the crystallinity and permanent porosity of ZIF-8 by SEM, XRD, nitrogen sorption and dissolution of Zn and 2-methylimidazole (Hmim) characterizations. Nevertheless, ZIF-8 crystalline phase and its porous character are transformed by the presence of HCO3 − and HPO4 2−.The dissolution of Zn and Hmim underwent a process of a giant ascent at the first stage and a following drop until a steady state in the two mediums. On the other hand, the morphology of ZIF-8 and the XRD peaks changes apparently in the both solutions. However, ZIF-8 possesses a higher stability when Hmim is introduced in the solution due to the inhibiting re-dissolution of ZIF-8 in the two solutions.
| Original language | English |
|---|---|
| Pages (from-to) | 171-177 |
| Number of pages | 7 |
| Journal | Microporous and Mesoporous Materials |
| Volume | 259 |
| DOIs | |
| Publication status | Published - 15 Mar 2018 |
Keywords
- 2-methylimidazole
- Anions
- Stability
- Zeolitic imidazolate framework-8
Cite this
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Specific anion effects on the stability of zeolitic imidazolate framework-8 in aqueous solution. / Wang, Huan; Jian, Meipeng; Qi, Zenglu; Li, Yongfeng; Liu, Ruiping; Qu, Jiuhui; Zhang, Xiwang.
In: Microporous and Mesoporous Materials, Vol. 259, 15.03.2018, p. 171-177.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Specific anion effects on the stability of zeolitic imidazolate framework-8 in aqueous solution
AU - Wang, Huan
AU - Jian, Meipeng
AU - Qi, Zenglu
AU - Li, Yongfeng
AU - Liu, Ruiping
AU - Qu, Jiuhui
AU - Zhang, Xiwang
PY - 2018/3/15
Y1 - 2018/3/15
N2 - In this study, the stability of zeolitic imidazolate framework-8 (ZIF-8) was investigated in 7 common anions aqueous solutions. Experimental results showed that Cl−, SO4 2−, NO3 −, PO4 3−, and CO3 2− have insignificant change in the crystallinity and permanent porosity of ZIF-8 by SEM, XRD, nitrogen sorption and dissolution of Zn and 2-methylimidazole (Hmim) characterizations. Nevertheless, ZIF-8 crystalline phase and its porous character are transformed by the presence of HCO3 − and HPO4 2−.The dissolution of Zn and Hmim underwent a process of a giant ascent at the first stage and a following drop until a steady state in the two mediums. On the other hand, the morphology of ZIF-8 and the XRD peaks changes apparently in the both solutions. However, ZIF-8 possesses a higher stability when Hmim is introduced in the solution due to the inhibiting re-dissolution of ZIF-8 in the two solutions.
AB - In this study, the stability of zeolitic imidazolate framework-8 (ZIF-8) was investigated in 7 common anions aqueous solutions. Experimental results showed that Cl−, SO4 2−, NO3 −, PO4 3−, and CO3 2− have insignificant change in the crystallinity and permanent porosity of ZIF-8 by SEM, XRD, nitrogen sorption and dissolution of Zn and 2-methylimidazole (Hmim) characterizations. Nevertheless, ZIF-8 crystalline phase and its porous character are transformed by the presence of HCO3 − and HPO4 2−.The dissolution of Zn and Hmim underwent a process of a giant ascent at the first stage and a following drop until a steady state in the two mediums. On the other hand, the morphology of ZIF-8 and the XRD peaks changes apparently in the both solutions. However, ZIF-8 possesses a higher stability when Hmim is introduced in the solution due to the inhibiting re-dissolution of ZIF-8 in the two solutions.
KW - 2-methylimidazole
KW - Anions
KW - Stability
KW - Zeolitic imidazolate framework-8
UR - http://www.scopus.com/inward/record.url?scp=85031095933&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2017.10.011
DO - 10.1016/j.micromeso.2017.10.011
M3 - Article
AN - SCOPUS:85031095933
VL - 259
SP - 171
EP - 177
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
SN - 1387-1811
ER -