Peanut Shell Activated Carbon:Characterization, Surface Modification and Adsorption of Pb<sup>2+</sup> from Aqueous Solution

徐涛; 刘晓勤

doi:10.1016/S1004-9541(08)60096-8

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Peanut Shell Activated Carbon:Characterization, Surface Modification and Adsorption of Pb²⁺ from Aqueous Solution

Updated：2026-01-06

- Peanut Shell Activated Carbon:Characterization, Surface Modification and Adsorption of Pb²⁺ from Aqueous Solution
- Peanut Shell Activated Carbon:Characterization, Surface Modification and Adsorption of Pb²⁺ from Aqueous Solution
- 中国化学工程学报（英文版） 2008年16卷第3期页码：401-406
- Affiliations：
  
  State Key Laboratory of Materials-oriented Chemical Engineering, Nanjing University of Technology,Nanjing,China,210009
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(08)60096-8
  中图分类号：
- 纸质出版：2008
- Accepted：
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徐涛, 刘晓勤. Peanut Shell Activated Carbon:Characterization, Surface Modification and Adsorption of Pb²⁺ from Aqueous Solution[J]. 中国化学工程学报（英文版）, 2008,16(3):401-406. DOI: 10.1016/S1004-9541(08)60096-8.

from Aqueous Solution[J]. , 2008, 16(3): 401-406.
徐涛, 刘晓勤. Peanut Shell Activated Carbon:Characterization, Surface Modification and Adsorption of Pb²⁺ from Aqueous Solution[J]. 中国化学工程学报（英文版）, 2008,16(3):401-406. DOI: 10.1016/S1004-9541(08)60096-8. DOI：

from Aqueous Solution[J]. , 2008, 16(3): 401-406. DOI： 10.1016/S1004-9541(08)60096-8.

摘要

Abstract

Metal ion contamination of drinking water and waste water

especially with heavy metal ion such as lead

is a serious and ongoing problem. In this work

activated carbon prepared from peanut shell (PAC) was used for the removal of Pb

from aqueous solution. The impacts of the Pb

adsorption capacities of the acid-modified carbons oxidized with HNO

were also investigated. The surface functional groups of PAC were confirmed by Fourier transform infrared (FTIR) spectroscopy

X-ray photoelectron spectroscopy (XPS)

Boehm titration. The textural properties (surface area

total pore volume) were evaluated from the nitrogen adsorption isotherm at 77 K. The experimental results presented indicated that the adsorption data fitted better with the Langmuir adsorption model. A comparative study with a commercial granular activated carbon (GAC) showed that PAC was 10.3 times more efficient compared to GAC based on Langmuir maximum adsorption capacity. Further analysis results by the Langmuir equation showed that HNO

[20% (by mass)

]

modified PAC has larger adsorption capacity of Pb

from aqueous solution (as much as 35.5 mg·g

-1

). The adsorption capacity enhancement ascribed to pore widening

increased cation-exchange capacity by oxygen groups

and the promoted hydrophilicity of the carbon surface.

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Peanut Shell Activated Carbon:Characterization, Surface Modification and Adsorption of Pb2+ from Aqueous Solution

Peanut Shell Activated Carbon:Characterization, Surface Modification and Adsorption of Pb2+ from Aqueous Solution

DOI：10.1016/S1004-9541(08)60096-8

摘要

Abstract

关键词

Keywords

references

Peanut Shell Activated Carbon:Characterization, Surface Modification and Adsorption of Pb²⁺ from Aqueous Solution

Peanut Shell Activated Carbon:Characterization, Surface Modification and Adsorption of Pb²⁺ from Aqueous Solution