Fibrous Silica KCC-1 as a Platform for Mn-Based Dual Metal Oxide Adsorbents for CO2 Capture.

Authors

Syawal Mohd Yusof, Azizul Hakim Lahuri, Nurul Asikin Mijan, Umar Kalmar Nizar, Siti Sarahah Sulhadi, Salma Samidin, Ainil Hafiza Abdul Aziz

Published in

Acta chimica Slovenica. Volume 72. Issue 3. Pages 613-621. Sep 03, 2025. Epub Sep 03, 2025.

Abstract

The continuous rise in atmospheric CO2 levels due to industrial emissions and fossil fuel combustion has intensified the need for efficient carbon capture. Solid adsorbents are favoured for their reusability and low energy demand, yet often face limitations in thermal stability and adsorption performance. This study examines the effect of co-loading manganese (Mn) with potassium (K), copper (Cu), and calcium (Ca) on fibrous silica KCC-1 for CO2 capture over a wide temperature range. KCC-1 was synthesised via a microemulsion method, and metals were introduced using an ultrasonic-surfactant-assisted impregnation technique. Characterisation using XRD, FTIR, BET, FESEM-EDX, and CO2-TPD confirmed structural integrity, surface functionality, and adsorption behaviour. CaO-MnO@KCC-1 shows the most balanced textural properties and the highest CO2 uptake due to its strong basicity and varied adsorption site strength. This highlights its potential as a temperature-flexible CO2 adsorbent.

PMID:
41047968
Bibliographic data and abstract were imported from PubMed on 06 Oct 2025.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.