Column with CNT/magnesium oxide composite for lead(II) removal from water

被引：513

作者：

Saleh, Tawfik A. ^{[2
]}

Gupta, Vinod K. ^{[1
,2
]}

机构：

[1] Indian Inst Technol Roorkee, Dept Chem, Roorkee 247667, Uttar Pradesh, India

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

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2012年 / 19卷 / 04期

关键词：

Carbon nanotubes; MnO2/CNT nanocomposite; Lead removal; Column system; AQUEOUS-SOLUTIONS; ACTIVATED CARBON; MANGANESE OXIDE; WASTE MATERIAL; RHODAMINE-B; ADSORPTION; EQUILIBRIUM; SORPTION; BIOMASS; BIOSORPTION;

D O I：

10.1007/s11356-011-0670-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, manganese dioxide-coated multiwall carbon nanotube (MnO2/CNT) nanocomposite has been successfully synthesized. The as-produced nanocomposite was characterized by different characteristic tools, such as X-ray diffraction, SEM, and FTIR. The MnO2/CNT nanocomposite was utilized as a fixed bed in a column system for removal of lead(II) from water. The experimental conditions were investigated and optimized. The pH range between 3 and 7 was studied; the optimum removal was found when the pH was equal to 6 and 7. The thickness of MnO2/CNT nanocomposite compact layer was also changed to find the optimum parameter for higher removal. It was observed that the slower the flow rates of the feed solution the higher the removal because of larger contact time.

引用

页码：1224 / 1228

页数：5

共 30 条

[1] Sorption of lead ions on diatomite and manganese oxides modified diatomite [J].

Al-Degs, Y ;

Khraisheh, MAM ;

Tutunji, MF .

WATER RESEARCH, 2001, 35 (15) :3724-3728

[2] Europium Adsorption on Multiwall Carbon Nanotube/Iron Oxide Magnetic Composite in the Presence of Polyacrylic Acid [J].

Chen, C. L. ;

Wang, X. K. ;

Nagatsu, M. .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (07) :2362-2367

[3] Adsorption behavior of multiwall carbon nanotube/iron oxide magnetic composites for Ni(II) and Sr(II) [J].

Chen, Changlun ;

Hu, Jun ;

Shao, Dadong ;

Li, Jiaxing ;

Wang, Xiangke .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 164 (2-3) :923-928

[4] Reuse of activated sludge biomass: II. The rate processes for the adsorption of basic dyes on biomass [J].

Chu, HC ;

Chen, KM .

PROCESS BIOCHEMISTRY, 2002, 37 (10) :1129-1134

[5] Removal of lead ions by acid activated and manganese oxide-coated bentonite [J].

Eren, E. ;

Afsin, B. ;

Onal, Y. .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 161 (2-3) :677-685

[6]

Faghihian H., 1999, Sep. Sci. Technol., V34, P2275

[7] Sorption and desorption studies of chromium(VI) from nonviable cyanobacterium Nostoc muscorum biomass [J].

Gupta, V. K. ;

Rastogi, A. .

JOURNAL OF HAZARDOUS MATERIALS, 2008, 154 (1-3) :347-354

[8] Biosorption of lead from aqueous solutions by green algae Spirogyra species:: Kinetics and equilibrium studies [J].

Gupta, V. K. ;

Rastogi, A. .

JOURNAL OF HAZARDOUS MATERIALS, 2008, 152 (01) :407-414

[9] Chromium removal by combining the magnetic properties of iron oxide with adsorption properties of carbon nanotubes [J].

Gupta, V. K. ;

Agarwal, Shilpi ;

Saleh, Tawfik A. .

WATER RESEARCH, 2011, 45 (06) :2207-2212

[10]

Gupta V.K., 2004, J COLLOID INTERF SCI, V27, P21

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