Muhammad Nauval Farras Russamsi, Firman Joshua Nainggolan, Triati Dewi Kencana Wungu, S. Suprijadi
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Carbon Dioxide Adsorption on Iron (III) Oxide Pillarized Na-Montmorillonite
Iron (III) oxide (Fe2O3) pillarized Na-montmorillonite (NaMMT) was prepared by ion-exchanging and calcining three different concentrations (0.025, 0.05, and 0.075 M) of Fe(OH)3 with NaMMT. The obtained materials were then examined for its ability to capture carbon dioxide, using thermogravimetric methods. The structural, compositional, and textural changes caused by pillarization were also examined using XRD, XRF, FTIR, and BET-BJH. The results showed that NaMMT-0.025 (pillared using 0.025 M of Fe(OH)3) and NaMMT-0.075 exhibit superior adsorption capacity compared to NaMMT, with NaMMT-0.025 having the greatest capacity. By contrast, NaMMT-0.05 registers a decrease in the amount of CO2 adsorbed, compared to NaMMT. Using XRF, it was shown that the amount of Fe2O3 present in the samples correspond to the concentration of Fe(OH)3 used in ion-exchange. XRD results shows that the interlayer space of NaMMT barely changed after addition of Fe2O3. Using FTIR, successful pillarization of Fe2O3 is confirmed, and by combining it with BET-BJH, it shows that addition of Fe2O3 could enhance carbon capture by creating favourable pore structures. Overall, it shows that adding an appropriate amount of Fe2O3 to montmorillonite will enhance CO2 adsorption.
期刊介绍:
Sains Malaysiana is a refereed journal committed to the advancement of scholarly knowledge and research findings of the several branches of science and technology. It contains articles on Earth Sciences, Health Sciences, Life Sciences, Mathematical Sciences and Physical Sciences. The journal publishes articles, reviews, and research notes whose content and approach are of interest to a wide range of scholars. Sains Malaysiana is published by the UKM Press an its autonomous Editorial Board are drawn from the Faculty of Science and Technology, Universiti Kebangsaan Malaysia. In addition, distinguished scholars from local and foreign universities are appointed to serve as advisory board members and referees.