Solvent-Free Synthesis of MIL-101(Cr) for CO 2 Gas Adsorption: The Effect of Metal Precursor and Molar Ratio

Kok Chung Chong, Pui San Ho, Soon Onn Lai, Sze Shin Lee, Woei Jye Lau, Shih-Yuan Lu and Boon Seng Ooi
Additional contact information
Kok Chung Chong: Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman (UTAR), Jalan Sungai Long, Kajang 43000, Selangor, Malaysia
Pui San Ho: Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman (UTAR), Jalan Sungai Long, Kajang 43000, Selangor, Malaysia
Soon Onn Lai: Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman (UTAR), Jalan Sungai Long, Kajang 43000, Selangor, Malaysia
Sze Shin Lee: Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman (UTAR), Jalan Sungai Long, Kajang 43000, Selangor, Malaysia
Woei Jye Lau: Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia
Shih-Yuan Lu: Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
Boon Seng Ooi: School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, Nibong Tebal 14300, Pulau Pinang, Malaysia

Sustainability, 2022, vol. 14, issue 3, 1-12

Abstract: MIL-101(Cr), a subclass of metal–organic frameworks (MOFs), is a promising adsorbent for carbon dioxide (CO 2 ) removal due to its large pore volume and high surface area. Solvent-free synthesis of MIL-101(Cr) was employed in this work to offer a green alternative to the current approach of synthesizing MIL-101(Cr) using a hazardous solvent. Characterization techniques including XRD, SEM, and FTIR were employed to confirm the formation of pure MIL-101(Cr) synthesized using a solvent-free method. The thermogravimetric analysis revealed that MIL-101(Cr) shows high thermal stability up to 350 °C. Among the materials synthesized, MIL-101(Cr) at the molar ratio of chromium precursor to terephthalic organic acid of 1:1 possesses the highest surface area and greatest pore volume. Its BET surface area and total pore volume are 1110 m 2 /g and 0.5 cm 3 /g, respectively. Correspondingly, its CO 2 adsorption capacity at room temperature is the highest (18.8 mmol/g), suggesting it is a superior adsorbent for CO 2 removal. The textural properties significantly affect the CO 2 adsorption capacity, in which large pore volume and high surface area are favorable for the adsorption mechanism.

Keywords: metal–organic framework; MIL-101; solvent free; adsorption; carbon dioxide (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/3/1152/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/3/1152/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:3:p:1152-:d:729051

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().