Effect of Carboxylic Functional Group Functionalized on Carbon Nanotubes Surface on the Removal of Lead from Water

被引：222

作者：

Atieh, Muataz Ali ^{[1
,2
]}

Bakather, Omer Yehya ^{[1
]}

Al-Tawbini, Bassam ^{[2
,3
]}

Bukhari, Alaadin A. ^{[4
]}

Abuilaiwi, Faraj Ahmad ^{[2
,5
]}

Fettouhi, Mohamed B. ^{[6
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Chem Engn, Dhahran 31261, Saudi Arabia

[2] King Fahd Univ Petr & Minerals, Ctr Res Excellences Nanotechnol, Dhahran 31261, Saudi Arabia

[3] King Fahd Univ Petr & Minerals, Dept Earth Sci, Dhahran 31261, Saudi Arabia

[4] King Fahd Univ Petr & Minerals, Res Inst, Dhahran 31261, Saudi Arabia

[5] King Fahd Univ Petr & Minerals, Hafr Al Batin Community Coll, Hafar al Batin 31991, Saudi Arabia

[6] King Fahd Univ Petr & Minerals, Dept Chem, Dhahran 31261, Saudi Arabia

来源：

BIOINORGANIC CHEMISTRY AND APPLICATIONS | 2010年 / 2010卷

关键词：

HEAVY-METAL IONS; ACTIVATED CARBON; AQUEOUS-SOLUTIONS; ADSORPTION; CADMIUM; BIOSORPTION; OXIDATION; KINETICS; BIOMASS; PB(II);

D O I：

10.1155/2010/603978

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The adsorption mechanism of the removal of lead from water by using carboxylic functional group (COOH) functionalized on the surface of carbon nanotubes was investigated. Four independent variables including pH, CNTs dosage, contact time, and agitation speed were carried out to determine the influence of these parameters on the adsorption capacity of the lead from water. The morphology of the synthesized multiwall carbon nanotubes (MWCNTs) was characterized by using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) in order to measure the diameter and the length of the CNTs. The diameters of the carbon nanotubes were varied from 20 to 40 nm with average diameter at 24 nm and 10 micrometer in length. Results of the study showed that 100% of lead was removed by using COOH-MCNTs at pH 7, 150 rpm, and 2 hours. These high removal efficiencies were likely attributed to the strong affinity of lead to the physical and chemical properties of the CNTs. The adsorption isotherms plots were well fitted with experimental data.

引用

页数：9

共 35 条

[1]

Abuilaiwi FA, 2010, ARAB J SCI ENG, V35, P37

[2] Enhancement of copper and cadmium adsorption on kaolin by the presence of humic acids [J].

Arias, M ;

Barral, MT ;

Mejuto, JC .

CHEMOSPHERE, 2002, 48 (10) :1081-1088

[3] Asturian fly ash as a heavy metals removal material [J].

Ayala, J ;

Blanco, F ;

Garcia, P ;

Rodriguez, P ;

Sancho, J .

FUEL, 1998, 77 (11) :1147-1154

[4] Chemically functionalized carbon nanotubes [J].

Balasubramanian, K ;

Burghard, M .

SMALL, 2005, 1 (02) :180-192

[5] Removal of heavy metal ions from solutions using zeolites. III. Influence of sodium ion concentration in the liquid phase on the kinetics of exchange processes between cadmium ions from solution and sodium ions from zeolite A [J].

Biskup, B ;

Subotic, B .

SEPARATION SCIENCE AND TECHNOLOGY, 2004, 39 (04) :925-940

[6] Evaluation of the adsorptive capacity of peanut hull pellets for heavy metals in solution [J].

Brown, P ;

Jefcoat, IA ;

Parrish, D ;

Gill, S ;

Graham, E .

ADVANCES IN ENVIRONMENTAL RESEARCH, 2000, 4 (01) :19-29

[7] Lead metal removal by recycled alum sludge [J].

Chu, W .

WATER RESEARCH, 1999, 33 (13) :3019-3025

[8] Effect of pH on the adsorption of selected heavy metal ions from concentrated chloride solutions by the chelating resin Dowex M-4195 [J].

Diniz, CV ;

Doyle, FM ;

Ciminelli, VST .

SEPARATION SCIENCE AND TECHNOLOGY, 2002, 37 (14) :3169-3185

[9] Effect of oxidation of activated carbon on its enrichment efficiency of metal ions: Comparison with oxidized and non-oxidized multi-walled carbon nanotubes [J].

El-Sheikh, Amjad H. .

TALANTA, 2008, 75 (01) :127-134

[10] Carboxylation treatment of multiwalled carbon nanotubes monitored by infrared and ultraviolet spectroscoples and scanning probe microscopy [J].

Goyanes, S. ;

Rubiolo, G. R. ;

Salazar, A. ;

Jimeno, A. ;

Corcuera, M. A. ;

Mondragon, I. .

← 1 2 3 4 →