Sorption of norfloxacin by lotus stalk-based activated carbon and iron-doped activated alumina: Mechanisms, isotherms and kinetics

被引：212

作者：

Liu, Weifeng ^{[1
]}

Zhang, Jian ^{[1
]}

Zhang, Chenglu ^{[1
]}

Ren, Liang ^{[1
]}

机构：

[1] Shandong Univ, Shandong Key Lab Water Pollut Control & Resource, Sch Environm Sci & Engn, Jinan 250100, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2011年 / 171卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Sorption; Norfloxacin; Mechanism; Iron-doped activated alumina; Activated carbon; FLUOROQUINOLONE ANTIBACTERIAL AGENTS; CIPROFLOXACIN; ADSORPTION; ACID; ANTIBIOTICS; EQUILIBRIA; REMOVAL; OXIDES; WATER; IONS;

D O I：

10.1016/j.cej.2011.03.099

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Two low-cost adsorbents, iron-doped activated alumina (Al(2)O(3)/Fe) and lotus stalk-based activated carbon (LAC) were employed to remove norfloxacin from aqueous solutions. Sorption of norfloxacin to both Al(2)O(3)/Fe and LAC showed a strong pH-dependent behavior. The maximum sorption capacity (21.58 mu mol/g and 922.70 mu mol/g) occurred at pH 6.5 and 5.5, respectively for Al(2)O(3)/Fe and LAC, which is near the pH(pzc) of the sorbent. While the equilibria adsorption isotherm data on LAC fit well to the Langmuir equation, both Langmuir and Freundlich models correlated the isotherm data on Al(2)O(3)/Fe quite well. The sorption kinetics of both sorbents followed the pseudo-second order model. Several possible mechanisms for the adsorption systems were proposed. For the sorption on Al(2)O(3)/Fe, surface complexation and cation bridging were dominant mechanisms responsible for norfloxacin removal, while hydrophobic interaction, cation exchange and pi-electron-donor-acceptor interaction were likely important mechanisms for the sorption on LAC. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：431 / 438

页数：8

共 29 条

[1] Iron(II) and iron(III) perchlorate complexes of ciprofloxacin and norfloxacin [J].

Al-Mustafa, J ;

Tashtoush, B .

JOURNAL OF COORDINATION CHEMISTRY, 2003, 56 (02) :113-124

[2] Point of zero charge and intrinsic equilibrium constants of activated carbon cloth [J].

Babic, BM ;

Milonjic, SK ;

Polovina, MJ ;

Kaludierovic, BV .

CARBON, 1999, 37 (03) :477-481

[3] SOME ASPECTS OF THE SURFACE-CHEMISTRY OF CARBON-BLACKS AND OTHER CARBONS [J].

BOEHM, HP .

CARBON, 1994, 32 (05) :759-769

[4] FLUORESCENCE REACTION AND COMPLEXATION EQUILIBRIA BETWEEN NORFLOXACIN AND ALUMINUM(III) ION IN CHLORIDE MEDIUM [J].

DJURDJEVIC, PT ;

JELIKICSTANKOV, M ;

STANKOV, D .

ANALYTICA CHIMICA ACTA, 1995, 300 (1-3) :253-259

[5] Interactions of fluoroquinolone antibacterial agents with aqueous chlorine: Reaction kinetics, mechanisms, and transformation pathways [J].

Dodd, MC ;

Shah, AD ;

Von Gunten, U ;

Huang, CH .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2005, 39 (18) :7065-7076

[6] Spectrofluorimetric study of the acid-base equilibria and complexation behavior of the fluoroquinolone antibiotics ofloxacin, norfloxacin, ciprofloxacin and pefloxacin in aqueous solution [J].

Drakopoulos, AI ;

Ioannou, PC .

ANALYTICA CHIMICA ACTA, 1997, 354 (1-3) :197-204

[7] Trends in soil sorption coefficients within common antimicrobial families [J].

Figueroa-Diva, Raquel A. ;

Vasudevan, Dharni ;

MacKay, Allison A. .

CHEMOSPHERE, 2010, 79 (08) :786-793

[8] Characterization and hydrocarbon oxidation activity of coprecipitated mixed oxides Mn3O4/Al2O3 [J].

Finocchio, E ;

Busca, G .

CATALYSIS TODAY, 2001, 70 (1-3) :213-225

[9]

Freundlich H., 1939, J. Am. Chem. Soc, V61, P2228, DOI DOI 10.1021/JA01877A071

[10] Environmental exposure and risk assessment of fluoroquinolone antibacterial agents in wastewater and river water of the Glatt Valley Watershed, Switzerland [J].

Golet, EM ;

Alder, AC ;

Giger, W .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2002, 36 (17) :3645-3651

← 1 2 3 →