Azo dye adsorption on an industrial waste-transformed hydroxyapatite adsorbent: Kinetics, isotherms, mechanism and regeneration studies

被引:121
作者
Bensalah, Hiba [1 ,2 ]
Younssi, Saad Alami [2 ]
Ouammou, Mohamed [2 ]
Gurlo, Aleksander [1 ]
Bekheet, Maged F. [1 ]
机构
[1] Tech Univ Berlin, Inst Werkstoffwissensch & Technol, Fachgebiet Keram Werkstoffe, Chair Adv Ceram Mat, Hardenbergstr 40, D-10623 Berlin, Germany
[2] Univ Hassan II Casablanca, Dept Chem, Lab Membranes Mat & Environm, Fac Sci & Tech Mohammedia, BP 146, Casablanca 20650, Morocco
来源
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2020年 / 8卷 / 03期
关键词
Waste-transformed adsorbents; Hydroxyapatite; Azo dye; Mechanism; Regeneration; Waste management; CONGO RED-DYE; AQUEOUS-SOLUTION; NANOCRYSTALLINE HYDROXYAPATITE; ENHANCED REMOVAL; SURFACE-AREA; PHOSPHOGYPSUM; NANOPARTICLES; EQUILIBRIUM; METAL; WATER;
D O I
10.1016/j.jece.2020.103807
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Nanocrystalline hydroxyapatite (HAp) with high surface area was synthesized by surfactant-assistant hydrothermal method from an industrial waste phosphogypsum. X-ray diffraction (XRD), transmission electron microscopy (TEM) and nitrogen sorption characterizations revealed that HAp crystals grow as needle-like particles along the c direction with surface area of 86 and 135 m(2)/g for the samples synthesized without and with Brij-93 surfactant, respectively. Adsorption of anionic azo dye Congo Red (CR) were conducted on both samples, taking into account the influence of initial dye concentration (100-500 mg/L), adsorbent dosage (0.5-30 g/L), contact time (5-180 min) and solution pH (2-12). Kinetic studies showed that the adsorption of CR followed pseudo-second-order model, i.e., chemisorption is the rate controlling step. Freundlich isotherm was found to be most suitable model for the adsorption of CR, i.e. adsorption is multilayer process. The calculated maximum adsorption capacity of synthesized B93-HAp adsorbent using Brij-93 surfactant was found to be 139 mg/g at pH 5.5 and dosage of 2 g/L. Two predominant mechanisms were observed for CR adsorption, electrostatic attraction and hydrogen bonding as revealed by Fourier transformed infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) studies. The multi-cycle sorption/desorption tests indicated that waste-transformed adsorbent could be regenerated and reused up to 6 cycles. Therefore, this work shows that the conversion of waste materials into adsorbents has a two-fold environmental benefit for both waste management and wastewater treatment.
引用
收藏
页数:10
相关论文
共 61 条
[1]  
Allam K., 2016, Journal of Water Resource and Protection, V8, P358, DOI 10.4236/jwarp.2016.83030
[2]   Removal of Reactive Yellow 84 from aqueous solutions by adsorption onto hydroxyapatite [J].
Barka, Noureddine ;
Qourzal, Samir ;
Assabbane, Ali ;
Nounah, Abederrahman ;
Ait-Ichou, Yhya .
JOURNAL OF SAUDI CHEMICAL SOCIETY, 2011, 15 (03) :263-267
[3]   SURFACE CHARGE CHARACTERISTICS OF HYDROXYAPATITE AND FLUORAPATITE [J].
BELL, LC ;
POSNER, AM ;
QUIRK, JP .
NATURE, 1972, 239 (5374) :515-&
[4]   Preparation of low-cost composite membrane made of polysulfone/polyetherimide ultrafiltration layer and ceramic pozzolan support for dyes removal [J].
Benkhaya, Said ;
Achiou, Brahim ;
Ouammou, Mohamed ;
Bennazha, Jamal ;
Alami Younssi, Saad ;
M'rabet, Souad ;
El Harfi, Ahmed .
MATERIALS TODAY COMMUNICATIONS, 2019, 19 :212-219
[5]   Hydrothermal synthesis of nanocrystalline hydroxyapatite from phosphogypsum waste [J].
Bensalah, Hiba ;
Bekheet, Maged F. ;
Younssi, Saad Alami ;
Ouammou, Mohamed ;
Gurlo, Aleksander .
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2018, 6 (01) :1347-1352
[6]   Removal of cationic and anionic textile dyes with Moroccan natural phosphate [J].
Bensalah, Hiba ;
Bekheet, Maged F. ;
Younssi, Saad Alami ;
Ouammou, Mohamed ;
Gurlo, Aleksander .
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2017, 5 (03) :2189-2199
[7]  
Bhatnagar A., 2009, REMOVAL ANIONIC DYES
[8]   Nitrate removal from aqueous solutions by gamma-Al2O3 ultrafiltration membranes [J].
Breida, M. ;
Younssi, S. Alami ;
Bouazizi, A. ;
Achiou, B. ;
Ouammou, M. ;
El Rhazi, M. .
HELIYON, 2018, 4 (01)
[9]   Removal of salicylic acid and carbamazepine from aqueous solution with Y-zeolites modified with extraframework transition metal and surfactant cations: Equilibrium and fixed-bed adsorption [J].
Cabrera-Lafaurie, Wilman A. ;
Roman, Felix R. ;
Hernandez-Maldonado, Arturo J. .
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2014, 2 (02) :899-906
[10]   Mechanism of Congo red adsorption on new sol-gel-derived hydroxyapatite nano-particle [J].
Chahkandi, Mohammad .
MATERIALS CHEMISTRY AND PHYSICS, 2017, 202 :340-351