Adsorption of amoxicillin by Mn-impregnated activated carbons: performance and mechanisms

被引：41
作者：
Liu, Huaqing [1 ]
Hu, Zhen [1 ]
Liu, Hai [1 ]
Xie, Huijun [2 ]
Lu, Shaoyong [3 ]
Wang, Qingsong [4 ]
Zhang, Jian [1 ]
机构：
[1] Shandong Univ, Sch Environm Sci & Engn, Shandong Key Lab Water Pollut Control & Resource, Jinan 250100, Peoples R China
[2] Shandong Univ, Environm Res Inst, Jinan 250100, Peoples R China
[3] Chinese Res Inst Environm Sci, Res Ctr Lake Environm, Beijing 100012, Peoples R China
[4] Shandong Univ, Sch Energy & Power Engn, Jinan 250100, Peoples R China
来源：
RSC ADVANCES | 2016年 / 6卷 / 14期
基金：
中国国家自然科学基金;
关键词：
WASTE-WATER TREATMENT; PHOTOCATALYTIC DEGRADATION; AQUEOUS-SOLUTIONS; REMOVAL; KINETICS; PHARMACEUTICALS; CARBONIZATION; EQUILIBRIUM; OZONATION; PRODUCTS;
D O I：
10.1039/c5ra23256b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Phragmites australis carbon (PAC) was produced from Phragmites australis by phosphoric acid (H3PO4) activation. To achieve a better amoxicillin (AMX) adsorption performance, manganous dihydrogen phosphate (Mn(H2PO4)(2)) and manganese chloride (MnCl2) were impregnated, producing PAC-MP and PAC-MC, respectively. Adsorption studies were carried out in different initial AMX concentration (15-100 mg L-1), pH (2-10) and contact time (0-60 h) to evaluate AMX adsorption performance and mechanisms. The adsorption isotherms well agreed with the Langmuir model for the three adsorbents. The maximum AMX adsorption capacity on PAC, PAC-MP and PAC-MC was 110, 132 and 122 mg g(-1), respectively. Solution pH had a strong influence on AMX adsorption. For kinetic results, a significant desorption phenomenon was observed. Several possible mechanisms were elaborated which include electrostatic interaction, complexation and degradation of AMX molecules. On the whole, Mn-impregnated PAC showed superior AMX removal efficiency, which presents a promising modification method for activated carbon in the treatment of AMX containing wastewater.
引用
收藏
页码：11454 / 11460
页数：7
相关论文
共 41 条
[1]   Adsorption of amoxicillin on chitosan beads:: Kinetics, equilibrium and validation of finite bath models [J].
Adriano, WS ;
Veredas, V ;
Santana, CC ;
Gonçalves, LRB .
BIOCHEMICAL ENGINEERING JOURNAL, 2005, 27 (02) :132-137
[2]   Complexation of managanese(II), cobalt(II), nickel(II), zink(II), and cadmium(II) cations with amoxicillin [J].
Alekseev, V. G. ;
Lyamtseva, O. I. ;
Samuilova, I. S. .
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2007, 52 (03) :383-385
[3]   Antibiotic removal from wastewaters: The ozonation of amoxicillin [J].
Andreozzi, R ;
Canterino, M ;
Marotta, R ;
Paxeus, N .
JOURNAL OF HAZARDOUS MATERIALS, 2005, 122 (03) :243-250
[4]   The processes affecting oxytetracycline contamination of groundwater in a phreatic aquifer underlying industrial fish ponds in Israel [J].
Avisar, Dror ;
Levin, Gili ;
Gozlan, Igal .
ENVIRONMENTAL EARTH SCIENCES, 2009, 59 (04) :939-945
[5]   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
[6]   SOME ASPECTS OF THE SURFACE-CHEMISTRY OF CARBON-BLACKS AND OTHER CARBONS [J].
BOEHM, HP .
CARBON, 1994, 32 (05) :759-769
[7]   Surface oxides on carbon and their analysis: a critical assessment [J].
Boehm, HP .
CARBON, 2002, 40 (02) :145-149
[8]   CARBONIZATION MECHANISMS RESULTING FROM INTUMESCENCE .2. ASSOCIATION WITH AN ETHYLENE TERPOLYMER AND THE AMMONIUM POLYPHOSPHATE PENTAERYTHRITOL FIRE-RETARDANT SYSTEM [J].
BOURBIGOT, S ;
LEBRAS, M ;
DELOBEL, R ;
BREANT, P ;
TREMILLON, JM .
CARBON, 1995, 33 (03) :283-294
[9]  
Do D. D., 1998, ADSORPTION ANALYSISE
[10]   Variation in the FTIR spectra of a biomass under impregnation, carbonization and oxidation conditions [J].
El-Hendawy, ANA .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2006, 75 (02) :159-166
12345