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Batch Adsorption Study for the Removal of Textile Dyes from Aqueous Solutions Using Pandanus Amaryllifolius (Rampe) Leaves
The adsorption of selected textile dyes, methylene blue (MB), crystal violet (CV), Congo red (CR), reactive red 24: 1 (RR), and reactive black b (RBB) from aqueous solutions into dried leaf powder of Pandanus amaryllifolius (Rampe) (PALP) was studied. Batch adsorption experiments were conducted at room temperature to investigate the adsorption capacity. The experimental results showed that the adsorbent could remove MB, CV, and CR up to 95%, 90%, and 81%, respectively. However, both reactive dyes did not show significant removal. Kinetic and equilibrium studies were performed for MB, CV, and CR dyes. Kinetic data revealed that dye uptake was fast, with 90% or more of the adsorption occurring within the first 15–20 min of contact time. The kinetic data fit the pseudo-second-order model with correlation coefficients greater than 0.99. The equilibrium data were satisfactorily fitted to the Langmuir, Freundlich, and Temkin isotherms. The intra-particle diffusion model confirmed that the adsorption of dyes onto the adsorbent is controlled not only by intraparticle diffusion but also by film diffusion which plays an important role. Fourier transform infrared (FTIR) spectroscopy and Scanning electron microscopy (SEM) analysis of the adsorbent before and after adsorption revealed that MB, CV, and CR were adsorbed to PALP with chemisorption by creating hydrogen bonds. A significant amount of mass transfer has occurred through papillose cells on the surface of the PALP.
Batch Adsorption Study for the Removal of Textile Dyes from Aqueous Solutions Using Pandanus Amaryllifolius (Rampe) Leaves
The adsorption of selected textile dyes, methylene blue (MB), crystal violet (CV), Congo red (CR), reactive red 24: 1 (RR), and reactive black b (RBB) from aqueous solutions into dried leaf powder of Pandanus amaryllifolius (Rampe) (PALP) was studied. Batch adsorption experiments were conducted at room temperature to investigate the adsorption capacity. The experimental results showed that the adsorbent could remove MB, CV, and CR up to 95%, 90%, and 81%, respectively. However, both reactive dyes did not show significant removal. Kinetic and equilibrium studies were performed for MB, CV, and CR dyes. Kinetic data revealed that dye uptake was fast, with 90% or more of the adsorption occurring within the first 15–20 min of contact time. The kinetic data fit the pseudo-second-order model with correlation coefficients greater than 0.99. The equilibrium data were satisfactorily fitted to the Langmuir, Freundlich, and Temkin isotherms. The intra-particle diffusion model confirmed that the adsorption of dyes onto the adsorbent is controlled not only by intraparticle diffusion but also by film diffusion which plays an important role. Fourier transform infrared (FTIR) spectroscopy and Scanning electron microscopy (SEM) analysis of the adsorbent before and after adsorption revealed that MB, CV, and CR were adsorbed to PALP with chemisorption by creating hydrogen bonds. A significant amount of mass transfer has occurred through papillose cells on the surface of the PALP.
Batch Adsorption Study for the Removal of Textile Dyes from Aqueous Solutions Using Pandanus Amaryllifolius (Rampe) Leaves
Lecture Notes in Civil Engineering
Dissanayake, Ranjith (editor) / Mendis, Priyan (editor) / Weerasekera, Kolita (editor) / De Silva, Sudhira (editor) / Fernando, Shiromal (editor) / Konthesingha, Chaminda (editor) / Gajanayake, Pradeep (editor) / Haththotuwa, S. L. G. (author) / Amarasinghe, B. M. W. P. K. (author)
International Conference on Sustainable Built Environment ; 2022 ; Yogyakarta, Indonesia
2023-08-10
13 pages
Article/Chapter (Book)
Electronic Resource
English