Environmental-Friendly Adsorbent Composite Based on Hydroxyapatite/Hydroxypropyl Methyl-Cellulose for Removal of Cationic Dyes from an Aqueous Solution - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Polymers Année : 2022

Environmental-Friendly Adsorbent Composite Based on Hydroxyapatite/Hydroxypropyl Methyl-Cellulose for Removal of Cationic Dyes from an Aqueous Solution

Noureddine Akartasse
Khalil Azzaoui
  • Fonction : Auteur
Elmiloud Mejdoubi
  • Fonction : Auteur
Belkheir Hammouti
Lhaj Lahcen Elansari
  • Fonction : Auteur
Mohamed Abou-Salama
  • Fonction : Auteur
Mohamed Aaddouz
  • Fonction : Auteur
Rachid Sabbahi
Larbi Rhazi
  • Fonction : Auteur
  • PersonId : 1092272
  • IdHAL : larbi-rhazi
Mohamed Siaj

Résumé

The aim of this study is to develop a new, efficient, and inexpensive natural-based adsorbent with high efficacy for the cationic dye methylene blue (MB). A natural-based nanocomposite based on hydroxyapatite (HAp) and hydroxypropyl methylcellulose (HPMC) was selected for this purpose. It was synthesized by the dissolution/reprecipitation method. A film with a homogeneous and smooth surface composed of nanoparticles was prepared from the nanocomposite. HPMC and HAp biopolymers were selected due to their compatibility, biodegradability, and non-toxicity. Total reflectance infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM), and calorimetric/thermal gravimetric (DSC/TGA) analysis results revealed the existence of strong physical interaction between the composite components. Scanning electron microscopy (SEM) observations show a composite sheet with a homogenous and smooth surface, indicating excellent compatibility between HPMC and HAp in the composite. The nanocomposite was evaluated as an adsorbent for organic dyes in an aqueous solution. The effects of solution pH, initial MB concentration, composite concentration, and adsorption time on the adsorption efficiency were evaluated. The highest adsorption rate was seen as 52.0 mg of MB/g composite. The adsorption rate reached equilibrium in about 20 min. Fitting of the adsorption data to the Langmuir and Freundlich adsorption models was investigated. Results showed that the adsorption process follows the Langmuir isotherm model. The kinetic study results revealed that the adsorption process was pseudo-second-order. The herein composite is an excellent alternative for use as contemporary industrial-scale adsorbents.

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Chimie
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Dates et versions

hal-03753717 , version 1 (24-04-2024)

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Noureddine Akartasse, Khalil Azzaoui, Elmiloud Mejdoubi, Belkheir Hammouti, Lhaj Lahcen Elansari, et al.. Environmental-Friendly Adsorbent Composite Based on Hydroxyapatite/Hydroxypropyl Methyl-Cellulose for Removal of Cationic Dyes from an Aqueous Solution. Polymers, 2022, 14 (11), pp.2147. ⟨10.3390/polym14112147⟩. ⟨hal-03753717⟩
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