Effect of the Solvent Molar Ratios on the Synthesis of Zeolitic Imidazolate Framework 8 (ZIF-8) and Its Performance in CO2 Adsorption

被引：9

作者：

Lai, Li Sze ^{[1
]}

Yeong, Yin Fong ^{[1
]}

Ani, Noraishah Che ^{[1
]}

Lau, Kok Keong ^{[1
]}

Azmi, Mohd Shariff ^{[1
]}

机构：

[1] Univ Teknol PETRONAS, Sch Chem Engn, Tronoh 31750, Perak, Malaysia

来源：

PROCESS AND ADVANCED MATERIALS ENGINEERING | 2014年 / 625卷

关键词：

ZIF-8; Particles; Molar Ratios; Crystallinity; Particle Size; Basicity; CO2; Adsorption; CARBON-DIOXIDE;

D O I：

10.4028/www.scientific.net/AMM.625.69

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this research work, ZIF-8 was synthesized at room temperature using different synthesis solutions contained different molar ratios of methanol to zinc nitrate. The properties of the resultant particles were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM) and thermal gravimetric analysis (TGA). The basicity of the ZIF-8 samples was measured using temperature programmed desorption (TPD). Results showed that ZIF-8 samples synthesized in the present work were thermally stable up to 700 degrees C. ZIF-8 synthesized using synthesis solution contained lowest molar ratio of methanol to zinc nitrate of 86.7 possessed highest crystallinity and largest average particles sizes of similar to 250 nm. Besides, this sample also demonstrated highest CO2 uptake rate due to the presence of highest amount of basic site of 0.70 mmol/g among the ZIF-8 samples.

引用

页码：69 / 72

页数：4

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