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Tine Aprianti
Department of Chemical Engineering, School of Engineering, The University of Western Australia, Australia
Mechanical Engineering

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Optimization of bio-based cellulose-phosphate hydrogel production from rice husk waste using the Taguchi method Selvia Aprilyanti; Irnanda Pratiwi; Winny Andalia; Tine Aprianti; Hariman Al Faritzie
Teknomekanik Vol. 9 No. 1 (2026): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v9i1.47172

Abstract

This work reports the development and statistical optimization of a fully Bio-based absorbent hydrogel synthesized from rice husk–derived cellulose via phosphoric acid crosslinking. Cellulose was extracted through sequential chemical treatments and subsequently converted into a phosphate-crosslinked hydrogel using a controlled synthesis process. A Taguchi L16 (4⁵) orthogonal array was employed to optimize four key synthesis parameters: cellulose content, reaction time, heating temperature, and phosphoric acid volume. Hydrogel structure and morphology were characterized using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). FTIR results confirmed the formation of phosphate ester linkages, indicating successful crosslinking, while SEM observations revealed a porous and interconnected network structure favorable for water absorption. The optimized hydrogel formulation achieved a maximum swelling ratio of 91.25 g/g, demonstrating effective absorbent performance despite the absence of synthetic monomers or grafting agents. These findings indicate that rice husk waste can be efficiently valorized into an environmentally benign absorbent material through a simple and statistically guided synthesis route, supporting sustainable hydrogel development and agricultural waste utilization.
Corrigendum to: Optimization of bio-based cellulose–phosphate hydrogel production from rice husk waste using the Taguchi method Selvia Aprilyanti; Irnanda Pratiwi; Winny Andalia; Tine Aprianti; Hariman Al Faritzie
Teknomekanik Vol. 9 No. 3 (2026): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v9i3.59372

Abstract

This Corrigendum relates to the following article: Selvia Aprilyanti, Ahmad Yani, M. Yusuf, Optimization of Bio-Based Cellulose-Phosphate Hydrogel Production from Rice Husk Waste Using the Taguchi Method. Teknomekanik, 9(1), 77–90 (2026). https://doi.org/10.24036/teknomekanik.v9i1.47172 Following publication of the above article, the authors identified several editorial inaccuracies requiring formal correction. These corrections include the addition of missing cross-references to Figures 3–7 within the manuscript text, revision of the schematic presented in Figure 3, correction of the caption and interpretation of Figure 5, and correction of the magnification information reported in the caption of Figure 7. These corrections improve the clarity and internal consistency of the published article and do not affect the experimental data, statistical analyses, results, scientific interpretation, or conclusions of the study.
Co-Authors Hariman Al Faritzie Hariman Al Faritzie Irnanda Pratiwi Irnanda Pratiwi Selvia Aprilyanti Selvia Aprilyanti Winny Andalia Winny Andalia