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April 26, 2026Industrial & Engineering Chemistry Research

How Functional Group Chemistry Governs Cr(VI) Adsorption on MCM-41: Experimental and Molecular-Level Insights

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Authors

MFMochamad L. FirmansyahSASafwat Abdel‐AzeimRYRayhan A. Yustiadi

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Overview

Experimental analysis reveals that functionalized MCM-41 improves Cr(VI) adsorption, emphasizing the impact of functional groups.

Key Points

  • This research aims to understand how the functionalization of MCM-41 affects its ability to adsorb Cr(VI).
  • Functionalized MCM-41 adsorbents (MCM-41/IL and MCM-41/NH2) were synthesized and compared for Cr(VI) removal.
  • Adsorption capacities were measured at pH 5.6 with a dosage of 1 g/L and analyzed over several cycles.
  • Computational analyses assessed the thermodynamic affinity and interaction mechanisms of the functionalized adsorbents.
  • MCM-41/NH2 demonstrated a Cr(VI) adsorption capacity of 153.3 mg/g, higher than MCM-41/IL at 110.2 mg/g.
  • Functionalization reduced surface area and pore volume, which influenced adsorption efficiency.
  • Organic pollutants decreased adsorption efficiency by 12-20%, while competing cations did not significantly impact Cr(VI) removal.

Cite This Study

Firmansyah et al. (2026) studied this question.

synapsesocial.com/papers/69edae394a46254e215b5815https://doi.org/10.1021/acs.iecr.6c00532
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