Adsorption behavior and mechanisms of the emerging antibiotic pollutant norfloxacin on eco-friendly and low-cost hydroxyapatite: Integrated experimental and response surface methodology optimized adsorption process

被引：10

作者：

Cheikh, Sabrina ^{[1
,2
]}

Imessaoudene, Ali ^{[1
,2
]}

Bollinger, Jean-Claude ^{[3
]}

Manseri, Amar ^{[4
]}

Bouzaza, Abdelkrim ^{[5
]}

Hadadi, Amina ^{[1
]}

Hamri, Nadia ^{[1
,2
]}

Amrane, Abdeltif ^{[6
]}

Mouni, Lotfi ^{[1
]}

机构：

[1] Univ Bouira, Fac SNVST, Lab Gest & Valorisat Ressources Nat & Assurance Qu, Bouira 10000, Algeria

[2] Univ Bejaia, Fac Technol, Dept Genie Procedes, Bejaia 06000, Algeria

[3] Univ Limoges, Lab E2Lim Eau Environm Limoges, 123 Ave Albert Thomas, F-87060 Limoges, France

[4] Ctr Rech Technol Semicond Energet, 02 Bd Frantz Fanon,BP140,7 Merveilles, Algiers, Algeria

[5] ENSCR, Equipe Chim & Ingn Procedes, UMR CNRS 6226, Lab Sci Chim Rennes, Ave Gen Leclerc, F-35700 Rennes, France

[6] Univ Rennes, Ecole Natl Super Chim Rennes, CNRS, ISCR UMR 6226, F-35000 Rennes, France

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2023年 / 392卷

关键词：

Adsorption; Norfloxacin; Natural hydroxyapatite; Optimization; Response surface methodology; Adsorption mechanism; AQUEOUS-SOLUTIONS; AZO-DYE; REMOVAL; WATER; EQUILIBRIUM; KINETICS; FLUORIDE; BIOCHAR; BONE;

D O I：

10.1016/j.molliq.2023.123424

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, hydroxyapatite derived from bovine bone (nat-HAp) was used to remove norfloxacin antibiotic (NOR) from an aqueous solution. The nat-HAp properties were interpreted by analysis of the structure, specific surface area, functional groups, morphology, and composition. The pseudo-second-order kinetic and Langmuir isotherm suit the experimental data on NOR adsorption very well. Maximum absorption was shown to be 166.01 mg g-1. Using a response surface methodology (RSM), the highest NOR elimination of 96.20 % was obtained under optimum conditions: NOR of 132.57 mg L-1, pH of 7.88, nat-HAp dose of 0.99 g L-1, and temperature of 25.06 degrees C. Thermodynamic studies demonstrated that the adsorption process was favorable, spontaneous, and exothermic. The value of standard enthalpy change (Delta H0) shows that physisorption controlled the adsorption, and for this purpose, a viable mechanism for the adsorption of NOR onto nat-HAp was suggested. Based on the reusability experiment, the nat-HAp remained stable after four cycling runs. These results show that nat-HAp effectively absorbed NOR and might be a cost-effective alternative adsorbent to eliminate fluoroquinolone antibiotics during wastewater treatment.

引用

页数：17