REMOVAL OF ORGANIC COMPOUNDS FROM WATER BY ACTIVATED CARBON IMPREGNATED WITH IRON OXIDE: COMBINED ACTION OF ADSORPTION AND OXIDATION IN THE PRESENCE OF H2O2

被引：14

作者：

Castro, Cinthia S. ^{[1
]}

Guerreiro, Mario C. ^{[1
]}

Oliveira, Luiz C. A. ^{[1
]}

Goncalves, Maraisa ^{[1
]}

机构：

[1] Univ Fed Lavras, Dept Quim, BR-37200000 Lavras, MG, Brazil

来源：

QUIMICA NOVA | 2009年 / 32卷 / 06期

关键词：

oxidation; adsorption; iron oxide; METHYLENE-BLUE; MAGNETIC COMPOSITES; HYDROGEN-PEROXIDE; CONTAMINANTS; DECOMPOSITION; CATALYST; STONES;

D O I：

10.1590/S0100-40422009000600039

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

REMOVAL OF ORGANIC COMPOUNDS FROM WATER BY ACTIVATED CARBON IMPREGNATED WITH IRON OXIDE: COMBINED ACTION OF ADSORPTION AND OXIDATION IN THE PRESENCE OF H2O2 In this work, composites based on activated carbon/iron oxide (AC/Fe) were prepared in two different proportions (AC/Fe 5/1 and 1/1)and evaluated in the removal of the organic dye methylene blue (MB). Physical-chemical properties of the composites were determined by X-ray diffraction (XRD). adsorption/dessorption of N-2 isotherm, temperature programmed reduction (TPR) and scanning electron microscopy (SEM). Results showed that goethite (alpha-FeOOH), with nanometer particle size was formed over carbon surface for both composites. These materials showed high efficiency to remove MB from Solution by combined adsorption and oxidation process. The AC/Fe 1/1 showed to be more active in (MB) oxidation then AC/Fe 5/1.

引用

页码：1561 / 1565

页数：5

共 25 条

[1] Fast elimination of organic airborne compounds by adsorption and catalytic oxidation over aerosol TiO2 [J].

Besov, Alexey S. ;

Vorontsov, Alexander V. .

CATALYSIS COMMUNICATIONS, 2008, 9 (15) :2598-2600

[2] Methylene blue and iodine adsorption onto an activated desert plant [J].

Bestani, B. ;

Benderdouche, N. ;

Benstaali, B. ;

Belhakem, M. ;

Addou, A. .

BIORESOURCE TECHNOLOGY, 2008, 99 (17) :8441-8444

[3] The preparation and characterization of activated carbon from coffee residue [J].

Boonamnuayvitaya, V ;

Chaiya, C ;

Tanthapanichakoon, W .

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2004, 37 (12) :1504-1512

[4]

Cornell R. M, 2003, IRON OXIDES

[5] Novel active heterogeneous Fenton system based on Fe3-xMxO4 (Fe, Co, Mn, Ni):: The role of M2+ species on the reactivity towards H2O2 reactions [J].

Costa, RCC ;

Lelis, MFF ;

Oliveira, LCA ;

Fabris, JD ;

Ardisson, JD ;

Rios, RRVA ;

Silva, CN ;

Lago, RM .

JOURNAL OF HAZARDOUS MATERIALS, 2006, 129 (1-3) :171-178

[6]

Cullity B.D., 1980, ELEMENTS XRAY DIFFRA, V2nd

[7]

FERRAZ W, 2007, J MOL CATAL A-CHEM, V278, P145

[8] Interaction of adsorption and catalytic reactions in water decontamination processes Part I. Oxidation of organic contaminants with hydrogen peroxide catalyzed by activated carbon [J].

Georgi, A ;

Kopinke, FD .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 58 (1-2) :9-18

[9] Production of charcoal from mate waste to remove organic contaminants from aqueous solution [J].

Goncalves, Maraisa ;

Guerreiro, Mario Cesar ;

Bianchi, Maria Lucia ;

Alves Oliveira, Luiz Carlos ;

Pereira, Elaine Inacio ;

Dallago, Rogerio Marcos .

CIENCIA E AGROTECNOLOGIA, 2007, 31 (05) :1386-1391

[10] Utilization of date stones for production of activated carbon using phosphoric acid [J].

Haimour, N. M. ;

Emeish, S. .

WASTE MANAGEMENT, 2006, 26 (06) :651-660

← 1 2 3 →