Adsorptive Removal of Rhodamine-B Using Eco- Synthesized Green Tea–Aluminium Nanoparticles

Year : 2025 | Volume : 12 | Issue : 03 | Page : 61 72
    By

    Bandari Daiva Mano Ramya,

  • Doddi Venkata Naga Narasimha Kesava,

  • Kallepalli Nagamani,

  • Annepu Sai Charan,

  • Lenka Karthik Kumar,

  • Pulipati King,

  • Meena Vangalapati,

  1. M. Tech Student, Department of Chemical Engineering, AUCE (A), Andhra University, Visakhapatnam, Andhra Pradesh, India
  2. B. Tech Student, Department of Chemical Engineering, AUCE (A), Andhra University, Visakhapatnam, Andhra Pradesh, India
  3. B. Tech Student, Department of Chemical Engineering, AUCE (A), Andhra University, Visakhapatnam, Andhra Pradesh, India
  4. B. Tech Student, Department of Chemical Engineering, AUCE (A), Andhra University, Visakhapatnam, Andhra Pradesh, India
  5. B. Tech Student, Department of Chemical Engineering, AUCE (A), Andhra University, Visakhapatnam, Andhra Pradesh, India
  6. Professor, Department of Chemical Engineering, AUCE (A), Andhra University, Visakhapatnam, Andhra Pradesh, India
  7. Professor, Department of Chemical Engineering, AUCE (A), Andhra University, Visakhapatnam, Andhra Pradesh,

Abstract

This study examines the use of Green Tea–Aluminium Nanoparticles (GT-Al NPs), a unique and eco-friendly adsorbent, to remove the dangerous Rhodamine-B dye from water. For characterisation, SEM, FTIR, TGA, and EDX were employed. We evaluated the effects of pH, temperature, dosage, contact time, and initial dye concentration on adsorption efficiency. First- and second-order pseudo models were used to characterize adsorption kinetics, and the Langmuir model explained equilibrium, as well as the Freundlich and Temkin isotherms. Thermodynamic analyses verified the spontaneous nature of the adsorption process. FTIR results demonstrated that the dye had effectively bonded both before and after adsorption. Overall, it was discovered that GT-Al NPs were a practical and effective method of eliminating rhodamine B from aquatic environments.

Keywords: Nanoparticles, adsorption, isotherms, kinetics, thermodynamics, FTIR, green synthesis

[This article belongs to Emerging Trends in Chemical Engineering ]

How to cite this article:
Bandari Daiva Mano Ramya, Doddi Venkata Naga Narasimha Kesava, Kallepalli Nagamani, Annepu Sai Charan, Lenka Karthik Kumar, Pulipati King, Meena Vangalapati. Adsorptive Removal of Rhodamine-B Using Eco- Synthesized Green Tea–Aluminium Nanoparticles. Emerging Trends in Chemical Engineering. 2025; 12(03):61-72.
How to cite this URL:
Bandari Daiva Mano Ramya, Doddi Venkata Naga Narasimha Kesava, Kallepalli Nagamani, Annepu Sai Charan, Lenka Karthik Kumar, Pulipati King, Meena Vangalapati. Adsorptive Removal of Rhodamine-B Using Eco- Synthesized Green Tea–Aluminium Nanoparticles. Emerging Trends in Chemical Engineering. 2025; 12(03):61-72. Available from: https://journals.stmjournals.com/etce/article=2025/view=234213


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Regular Issue Subscription Original Research
Volume 12
Issue 03
Received 16/10/2025
Accepted 27/10/2025
Published 05/11/2025
Publication Time 20 Days
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