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

被引：31

作者：

Akartasse, Noureddine ^{[1
]}

Azzaoui, Khalil ^{[1
]}

Mejdoubi, Elmiloud ^{[1
]}

Hammouti, Belkheir ^{[1
,2
]}

Elansari, Lhaj Lahcen ^{[1
]}

Abou-salama, Mohamed ^{[3
]}

Aaddouz, Mohamed ^{[1
]}

Sabbahi, Rachid ^{[4
,5
]}

Rhazi, Larbi ^{[6
]}

Siaj, Mohamed ^{[7
]}

机构：

[1] Mohammed 1st Univ, Fac Sci, Dept Chem, Lab Appl Chem & Environm, POB 717, Oujda 60000, Morocco

[2] Ecole Hautes Etud Ingn, CREHEIO, Oujda 60000, Morocco

[3] Univ Mohammed Premier, Fac Multidisciplinary Nador, Dept Chem Mat & Environm, Lab Mol Chem, BP 300, Selouane 62700, Nador, Morocco

[4] Univ Ibn Zohr, Higher Sch Technol, Quartier 25 Mars,POB 3007, Laayoune 70000, Morocco

[5] Univ Ibn Zohr, Fac Sci, Lab Plant Biotechnol, POB 8106, Hay Dakhla 80000, Agadir, Morocco

[6] Inst Polytech UniLaSalle, Transformat & Agroresources Res Unit ULR7519, 19 Rue Pierre Waguet,BP 30313, F-60026 Beauvais, France

[7] Univ Quebec Montreal, Dept Chem & Biochem, Montreal, PQ H3C 3P8, Canada

来源：

POLYMERS | 2022年 / 14卷 / 11期

基金：

英国科研创新办公室;

关键词：

nanocomposite; hydroxypropyl methylcellulose; hydroxyapatite; methylene blue; adsorption; BLUE ADSORPTION; CARBON NANOTUBE; PHOTOCATALYTIC DEGRADATION; CARBOXYMETHYL CELLULOSE; HEAVY-METALS; BATCH; SURFACE; NANOCOMPOSITES; EQUILIBRIUM; ACID;

D O I：

10.3390/polym14112147

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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.

引用

页数：21

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