Computational and analytical investigation of date trunk biomass as a bio-adsorbent for sustainable removal of methylene blue dye from wastewater.

Authors

  • Amna Azam Department of Chemical Engineering and Technology, Muhammad Nawaz Sharif University of Engineering and Technology, Multan, Pakistan
  • Ali Husnain Department of Chemical Engineering and Technology, Muhammad Nawaz Sharif University of Engineering and Technology, Multan, Pakistan
  • Ali Sarosh Department of Chemical Engineering and Technology, Muhammad Nawaz Sharif University of Engineering and Technology, Multan, Pakistan
  • Sabih Qamar Department of Chemical Engineering and Technology, Muhammad Nawaz Sharif University of Engineering and Technology, Multan, Pakistan
  • Uzair Shamas Institute of Chemical Engineering and Technology, University of the Punjab, Lahore, Pakistan
  • Asim Umer Department of Chemical Engineering and Technology, Muhammad Nawaz Sharif University of Engineering and Technology, Multan, Pakistan

DOI:

https://doi.org/10.54693/piche.05322

Abstract

The Industrial release of synthetic dyes, such as methylene blue (MB), into water has created significant environmental concerns. The use of date trunk as a bio-adsorbent was investigated for the removal of MB dye from wastewater. The effects of several experimental parameters, such as MB dye concentration, contact time, and adsorbent dosage, were studied using a batch-laboratory operational setup. Fourier Transform Infrared (FTIR) spectroscopy was performed to reveal the presence of functional groups in the bio-adsorbent. This study evaluated the adsorption capacity of a green bio-adsorbent for the removal of MB dye from wastewater. The maximum adsorption of MB was obtained for the bio-adsorbent dosage of 0.4 gram for 50 min, achieving a maximum removal efficiency of 92.4%. The Gaussian 09 software package was used for Density Functional Theory (DFT) to optimize the molecular structures of guaiacol and methylene blue (MB) dye, , with the calculated adsorption energy (Eads = -1.43 Hartree) confirming a thermodynamically favorable interaction. The results revealed that date trunks have great potential as efficient bio-adsorbents for the removal of MB dye from wastewater.

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Published

2026-01-16

How to Cite

Azam, A., Ali Husnain, Ali Sarosh, Sabih Qamar, Uzair Shamas, & Asim Umer. (2026). Computational and analytical investigation of date trunk biomass as a bio-adsorbent for sustainable removal of methylene blue dye from wastewater. Journal of the Pakistan Institute of Chemical Engineers, 53(2). https://doi.org/10.54693/piche.05322

Issue

Vol. 53 No. 2 (2025): Journal of the Pakistan Institute of Chemical Engineers

Section

Articles

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