Application of Modified Walnut Shell for Adsorptive Removal of Anionic Dye (Congo Red) from Simulated Water

Anionic dye removal using modified walnut shell as biosorbent


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Authors

  • Muskan Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, India
  • Sachin Kumari Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, India
  • Bhagya Shree Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, India
  • Sushila Singh Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, India
  • Manju Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, India
  • Indu Rani Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, India
  • Ankush Dhanda Department of Soil Science, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, India

https://doi.org/10.56093/jsswq.v17i2.168162

Keywords:

Walnut shell, adsorption, anionic dye, isotherm

Abstract

Human and aquatic health is frequently at risk due to Congo red (CR) dye pollution in aquatic environments. To remediate water contaminated with CR dye, a chemically modified walnut shell adsorbent was developed in the present study. The physico-chemical characteristics of modified walnut shell were investigated using a variety of characterization techniques, including pHpzc, FTIR, FE-SEM, and EDS. After optimizing the impact of the most important parameters, a maximum removal of 77.5% was noted at pH 4. The CR uptake by chemically modified walnut shell was explained by the monolayer layer adsorption onto energetically equivalent sorption sites. The Langmuir model yielded a maximal adsorptive capacity of 53.3 mg CR per g CMWS. The kinetic models also showed that the rate depends on the adsorbent’s adsorptive capacity. The pseudo-second order model works well for CR adsorption, and its R2 >0.99 adsorption. Thermodynamic studies indicated that adsorption is feasible, spontaneous and endothermic in nature. This work suggests that CMWS can be investigated further as a possible adsorbent for the removal of CR dye.

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References

Sahu A and Poler J C (2024) Removal and degradation of dyes from textile industry wastewater: Benchmarking recent advancements, toxicity assessment and cost analysis of treatment processes. Journal of Environmental Chemical Engineering, 1(11):3754-3760. DOI: https://doi.org/10.1016/j.jece.2024.113754

Benahdach K , El Hadj Ali Y A, Azzouz M A, Gonzalez C , Chraka A, El Mail R , El Laghdach A, Wahby A , and Arhoun B (2025) Synthesis of activated carbon by microwave-assisted sulfuric acid activation for the adsorption of Congo Red in aqueous medium: Kinetic, isotherm, thermodynamic, molecular dynamic, and functional theory studies. Journal of Molecular Liquids,(420):126821-126830. DOI: https://doi.org/10.1016/j.molliq.2024.126821

Zhao H, Yu Q, Li M, and Sun S(2020) Preparation and water vapor adsorption of “green” walnut-shell activated carbon by CO2 physical activation. Adsorption Science Technology, 38: 60–76. DOI: https://doi.org/10.1177/0263617419900849

Manzoor K, Batool M, and Naz F (2024) A comprehensive review on application of plant-based bioadsorbents for Congo red removal. Biomass Conversion and Biorefnery,.14:4511–4537. DOI: https://doi.org/10.1007/s13399-022-02741-5

Xu L, Zheng X, Cui H, Zhu Z, Liang J and Zhou J (2017) Equilibrium, kinetic, and thermodynamic studies on the adsorption of cadmium from aqueous solution by modified biomass ash. Bioinorg Chem Appl,1–9. DOI: https://doi.org/10.1155/2017/3695604

Lima HHC, Maniezzo RS and Llop MEG (2019) Synthesis and characterization of pecan nutshell-based adsorbent with high specifc area and high methylene blue adsorption capacity. Journal of Molecular Liquids, (276) :570–576. DOI: https://doi.org/10.1016/j.molliq.2018.12.010

Miyah Y, Lahrichi A, Idrissi M, Khalil A and Zerrouq F(2018) Adsorption of methylene blue dye from aqueous solutions onto walnut shells powder: equilibrium and kinetic studies. Surfaces and Interfaces, 11(74):81-91. DOI: https://doi.org/10.1016/j.surfin.2018.03.006

Kayan G O and Kayan A (2021) Composite of natural polymers and their adsorbent properties on the dyes and heavy metal ions. Journal of Polymers and the Environment ,293477-293487. DOI: https://doi.org/10.1007/s10924-021-02154-x

Ovchinnikov O V, Evtukhova A V, Kondratenko T S, Smirnov M S, Khokhlov V Y, and Erina O V (2016) Manifestation of intermolecular interactions in FTIR spectra of methylene blue molecules. Vibrational Spectroscopy, 86: 181-189. DOI: https://doi.org/10.1016/j.vibspec.2016.06.016

Sudarsan S, Murugesan G, Varadavenkatesan T, Vinayagam R, and Selvaraj R (2025). Efficient adsorptive removal of Congo Red dye using activated carbon derived from Spathodea campanulata flowers. Scientific Reports, 15(1): 1831-1840. DOI: https://doi.org/10.1038/s41598-025-86032-9

Almeelbi T (2025) Magnetite Biochar Derived from Date Palm Tree Waste Leaves for Adsorption of Congo Red from Aqueous Solution. Egyptian Journal of Chemistry, 68(9): 205–212. DOI: https://doi.org/10.21608/ejchem.2025.333301.10727

Muskan, Kumari S, Singh S, BhagyaShree, Rani I, & Manju (2025) Modified walnut shell for enhanced adsorption for methylene blue from aqueous solution: Preparation, characterisation, isotherm, kinetics and mechanism study. Indian Journal of Chemical Technology, 32 (3):313-323.

Chan K T, Ong S T, and Ha S T (2024) Adsorptive removal of Congo Red dye from its aqueous solutions by tetraethylenepentamine modified peanut husks composite beads. Desalination and Water Treatment ,317: 100060-100070. DOI: https://doi.org/10.1016/j.dwt.2024.100060

Hamidon T S, Maznan N N, Idris N N, Trache D, M. and Hussin M H (2025) Kinetics and equilibrium studies of congo red adsorption using alginate hydrogel beads impregnated with coconut shell derived-cellulose nanocrystals.Journal of Industrial and Engineering Chemistry,149: 616-629. DOI: https://doi.org/10.1016/j.jiec.2025.02.024

Nagpal M, Sharma N, and Mittal A (2025) Selective adsorptive removal and separation of harmful anionic dyes using mesoporous magnesium oxide-chitosan composite .Hybrid Advances ,9: 100393-100400. DOI: https://doi.org/10.1016/j.hybadv.2025.100393

Ojo T A , Ojedokun AT, and Bello O S (2019) Functionalization of powdered walnut shell with orthophosphoric acid for Congo red dye removal. Particulate Science and Technology, 37 (1) 74–85. DOI: https://doi.org/10.1080/02726351.2017.1340914

Dovi E, Aryee AA, Kani AN, Mpatani FM, Li J, Li Z, Qu L, and Han R( 2021) Functionalization of walnut shell by grafting amine groups to enhance the adsorption of Congo red from water in batch and fixed-bed column modes. Journal of Environmental Chemical Engineering, 9 (5):106301-106310. DOI: https://doi.org/10.1016/j.jece.2021.106301

Goswami M, Chaturvedi P, Sonwani RK, Gupta AD, Singhania RR, Giri BS, Rai BN, Singh H, Yadav S, and Singh RS (2020) Application of Arjuna (Terminalia arjuna) seed biochar inhybrid treatment system for the bioremediation of Congo red dye. Bioresources Technology, 307:123203-123212. DOI: https://doi.org/10.1016/j.biortech.2020.123203

Sathiyavimal S, Vasantharaj S, Veeramani V, Saravanan M, Rajalakshmi G, Kaliannan T, Al-Misned F A, Pugazhendhi A (2021).Green chemistry route of biosynthesized copper oxide nanoparticles using Psidium guajava leaf extract and their antibacterial activity and effective removal of industrial dyes.Journal of Environmental Chemical Engineering, 9(2) :105033-105040. DOI: https://doi.org/10.1016/j.jece.2021.105033

Aftab R A, Zaidi S, Khan A A P, Usman M A, Khan A Y, Chani M T S, Asiri A M (2023) Removal of congo red from water by adsorption onto activated carbon derived from waste black cardamom peels and machine learning modeling. Alexandria Engineering Journal, 71: 355-369. DOI: https://doi.org/10.1016/j.aej.2023.03.055

Khan M A, Kuldeep, Yadav S, Singh N, Basheed G A (2025)Enhanced adsorption of congo red dye using dried chitosan functionalized MnFe2O4 viscoelastic fluid. Colloids and Surfaces A: Physicochemical and Engineering Aspects,709(2):136166-136176. DOI: https://doi.org/10.1016/j.colsurfa.2025.136166

Langmuir I (1918) The adsorption of gases on plane surfacesof glass, mica and platinum. Journal of American Chemical Society 40:1361–1403. DOI: https://doi.org/10.1021/ja02242a004

Freundlich HMF (1906) Over the adsorption in solution.The Journal of Physical Chemistry 57:385–470. DOI: https://doi.org/10.1515/zpch-1907-5723

Samimi M and Safari M (2022) TMU-24 (Zn-based MOF) as an advance and recyclable adsorbent for the efficientremoval of eosin B: characterization, equilibrium, and thermodynamic studies. Environmental Progress &Sustainable Energy, 1–9. DOI: https://doi.org/10.1002/ep.13859

Staron P, Chwastowski J, Banach M (2017) Sorption and desorption studies on silver ions from aqueous solution by coconut fiber. The Journal of Cleaner Production149:290–301. DOI: https://doi.org/10.1016/j.jclepro.2017.02.116

Ausavasukhi A, Faikratoke A, Toomtong N (2025) Green synthesis of lignocellulose/silica hybrid materials from rice husk and bagasse and their adsorption properties. Sustainable Chemistry and Pharmacy,46:102063-102073. DOI: https://doi.org/10.1016/j.scp.2025.102063

Rani S , Kumara P, Kataria N (2025) Development of chemically and green synthesized MgO nanoparticles for CR and BG dye adsorption from single and binary aqueous system. Journal of the Taiwan Institute of Chemical Engineers ,166:105566-105576. DOI: https://doi.org/10.1016/j.jtice.2024.105566

Umeh CT, Nduka JK, Mogale R, Akpomie KG, Okoye NH (2024) Acid-activated corn silk as a promising phytosorbent for uptake of Malachite green and Cd (II)ion from simulated wastewater: equilibrium, kinetic andthermodynamic studies.International Journal of Phytoremediation 26 (10):1593-1610. DOI: https://doi.org/10.1080/15226514.2024.2339478

Saini P , Chakinala N , Praveen K. Surolia , Gupta A, Chakinala (2025) Ultrasound-assisted enhanced adsorption of textile dyes with metal organic frameworks. Separation and Purification Technology 354 128730-128740. https://doi.org/10.1016/j.seppur.2024.128730-128740. DOI: https://doi.org/10.1016/j.seppur.2024.128730

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Submitted

2025-06-24

Published

2025-10-29

Issue

Vol. 17 No. 2 (2025): JSSWQ

Section

Articles

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Journal of Soil Salinity and Water Quality serves as an official organ of the Indian Society of Soil Salinity and Water Quality (ISSSWQ) for the publication of research papers, reviews, and short communications as per the constitution and by-laws of the society. Soft and hard copy of the journal are sent free to all its members. All disputes are subject to the exclusive jurisdiction of competent court and forums in Kamal only. The society does not assume any responsibility for opinion by the authors in the articles and no-material in any form can be reproduced without the prior permission of the society. The society is not responsible for any delay, whatsoever, in publication/ delivery of the periodicals to the subscribers due to unforeseen circumstances or postal delay. The society does not vouch for any claims made by the advertisers of products and services. The publisher and the editors shall not be held liable for any consequences in the event of such claim not being honoured by the advertisers.

How to Cite

Muskan, Kumari, S., Shree, B., Singh, S., Manju, Rani, I., & Dhanda, A. (2025). Application of Modified Walnut Shell for Adsorptive Removal of Anionic Dye (Congo Red) from Simulated Water: Anionic dye removal using modified walnut shell as biosorbent. Journal of Soil Salinity and Water Quality, 17(2), 197-204. https://doi.org/10.56093/jsswq.v17i2.168162