首页|Sustainable Adsorption of Nickel and Chromium from Aqueous Solutions by Plant-Based Adsorbent

Sustainable Adsorption of Nickel and Chromium from Aqueous Solutions by Plant-Based Adsorbent

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This study introduces a novel and sustainable method for the removal of the heavy metals nickel and chromium from aqueous solutions using modified microcellulose. The modification process utilizes green tea extract and iron sulfate to enhance the surface and structural properties of microcellulose, significantly improving its adsorption performance. X-ray diffraction (XRD) analysis revealed an increase in the crystallinity index from 93 to 98% following modification. Scanning electron microscopy (SEM) showed that the diameter of the modified cellulose fibers reached approximately 6.75 μm. The Brunauer-Emmett-Teller (BET) surface area increased from 1.7 to 2.98 m~2/g, while the pore volume nearly doubled compared to unmodified cellulose, indicating enhanced surface characteristics. Particle size distribution analysis showed a reduction in particle size, with a range of 1 to 500 (am. The maximum adsorption capacities were calculated as 8.702 mg/g for chromium and 3.949 mg/g for nickel. The removal efficiencies reached 81% for chromium and 16% for nickel. These results demonstrate the promising potential of green-modified microcellulose as an effective, eco-friendly adsorbent for water treatment applications.

Modified MicrocelluloseGreen AdsorbentChromium(VI)Nickel(II)Heavy Metal RemovalZero-Valent Iron

Mohammad Yavari Foroushani、Ali Yavari Foroushani、Hossein Yarahmadi

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Master of Environmental Engineering, Department of Civil Engineering, Sirjan University of Technology, Sirjan, Iran||Young Researchers and Elite Club, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Isfahan, Iran

Department of Civil Engineering, Sharif University of Technology, Tehran, Iran

Department of Chemical Engineering, Sirjan University of Technology, Sirjan, Iran

2025

10.1007/s11270-025-08114-8

Water, air and soil pollution

Water, air and soil pollution

ISSN：0049-6979
年,卷(期)：2025.236(8)
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