IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v13y2021i7p3600-d523034.html
   My bibliography  Save this article

Successful Application of Eucalyptus Camdulensis Biochar in the Batch Adsorption of Crystal Violet and Methylene Blue Dyes from Aqueous Solution

Author

Listed:
  • Muhammad Tahir Amin

    (Alamoudi Water Research Chair, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia
    Department of Environmental Sciences, Abbottabad Campus, COMSATS University Islamabad, Abbottabad 22060, Pakistan)

  • Abdulrahman Ali Alazba

    (Alamoudi Water Research Chair, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia
    Agricultural Engineering Department, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia)

  • Muhammad Shafiq

    (Alamoudi Water Research Chair, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia)

Abstract

Eucalyptus camdulensis biochar ( Ec -bio) was used to adsorb crystal violet (CV) and methylene blue (MB) dyes, which was optimized and further evaluated using different isotherm and kinetic models. Microscopy and spectroscopy techniques showed the interactions of the dyes with the surface functional groups of the Ec -bio, resulting in the removal of the dyes from aqueous solution. Both dyes were immediately uptaken, with equilibrium reached in 60 min, with a higher sorption efficiency of CV compared to MB. Thermodynamic parameters showed endothermic adsorption and the nonspontaneous adsorption of both dyes onto the Ec -bio. Both the adsorption capacity and percentage removal increased with the increasing solution pH from 2.0 to 4.0 and to 10 for CV and MB. An increase in adsorption capacity was observed upon increasing the initial concentrations, with a corresponding decrease in the percentage removal. The pseudo-second-order (PSO) and Elovich kinetic models (nonlinear approach) were a good fit to the data of both dyes, confirming a chemisorptive adsorption process. The Langmuir isotherm fitted well to the CV data, supporting its monolayer adsorption onto the Ec -bio, while the Freundlich isotherm was a good fit to the MB dye data, suggesting the surface heterogeneity of the Ec -bio. The Dubinin–Radushkevich isotherm was a good fit to the adsorption CV data compared with the MB dye, suggesting the physisorption of both dyes onto the Ec -bio due to its mean free energy of adsorption of <8 kJ mol −1 .

Suggested Citation

  • Muhammad Tahir Amin & Abdulrahman Ali Alazba & Muhammad Shafiq, 2021. "Successful Application of Eucalyptus Camdulensis Biochar in the Batch Adsorption of Crystal Violet and Methylene Blue Dyes from Aqueous Solution," Sustainability, MDPI, vol. 13(7), pages 1-18, March.
  • Handle: RePEc:gam:jsusta:v:13:y:2021:i:7:p:3600-:d:523034
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/13/7/3600/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2071-1050/13/7/3600/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Muhammad Tahir Amin & Abdulrahman Ali Alazba & Muhammad Shafiq, 2015. "Adsorptive Removal of Reactive Black 5 from Wastewater Using Bentonite Clay: Isotherms, Kinetics and Thermodynamics," Sustainability, MDPI, vol. 7(11), pages 1-17, November.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Muhammad Hazwan Hamzah & Muhammad Fitri Ahmad Asri & Hasfalina Che Man & Abdulsalam Mohammed, 2019. "Prospective Application of Palm Oil Mill Boiler Ash as a Biosorbent: Effect of Microwave Irradiation and Palm Oil Mill Effluent Decolorization by Adsorption," IJERPH, MDPI, vol. 16(18), pages 1-18, September.
    2. Xinhui Zhan & Liping Xiao & Bing Liang, 2019. "Removal of Pb(II) from Acid Mine Drainage with Bentonite-Steel Slag Composite Particles," Sustainability, MDPI, vol. 11(16), pages 1-17, August.
    3. Xinhui Zhan & Liping Xiao & Bing Liang, 2019. "Experimental Study on the Optimum Preparation of Bentonite–Steel Slag Composite Particles," Sustainability, MDPI, vol. 12(1), pages 1-27, December.
    4. Marcela Bindzarova Gergelova & Zofia Kuzevicova & Slavomir Labant & Stefan Kuzevic & Diana Bobikova & Jozef Mizak, 2020. "Roof’s Potential and Suitability for PV Systems Based on LiDAR: A Case Study of Komárno, Slovakia," Sustainability, MDPI, vol. 12(23), pages 1-22, November.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:13:y:2021:i:7:p:3600-:d:523034. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.