Please wait a minute...
Acta Physico-Chimica Sinica  2006, Vol. 22 Issue (12): 1542-1546    DOI: 10.3866/PKU.WHXB20061221
Adsorption of Hexavalent Chromium Ions on Multi-wall Carbon Nanotubes in Aqueous Solution
QIU Kai-Dong;LI Wei-Bin
(Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, P. R. China; Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, P. R. China)
Download:   PDF(710KB) Export: BibTeX | EndNote (RIS)      

Abstract  Carbon nanotubes (CNTs) were employed to remove toxic hexavalent chromium ions from aqueous solution. Effects of concentration of hexavalent chromium, solution pH, coexistent trivalent chromium in the solution on the Cr(VI) adsorption were examined. The results show that the adsorption capacity of Cr(VI) on CNTs increased with increase of Cr(VI) concentration, and then reach a plateau between 300~700 mg•L−1 of Cr(VI); the maximum value of 532.215 mg Cr(VI) per g CNTs was achieved at the Cr(VI) concentration of 493.557 mg•L−1, and followed by a decrease at still higher concentration of Cr(VI). The capacity was also significantly affected by the pH value of the solution between 2 and 7, and little change was observed above pH value of 7. Addition of Cr(III) into the Cr(VI) solution could decrease the Cr (VI) removal capacities because of their competitive adsorption on CNTs. Under the same experimental conditions, CNTs showed an adsorption capacity of Cr(VI) 6 times as large as the commercial activated carbon at 190 mg•L−1 of the concentration of Cr(VI).

Key wordsCarbon nanotubes      Adsorption      Cr(VI)      Activated carbon     
Received: 20 April 2006      Published: 06 December 2006
Corresponding Authors: LI Wei-Bin     E-mail:,
Cite this article:

QIU Kai-Dong;LI Wei-Bin. Adsorption of Hexavalent Chromium Ions on Multi-wall Carbon Nanotubes in Aqueous Solution. Acta Physico-Chimica Sinica, 2006, 22(12): 1542-1546.

URL:     OR

[1] WU Xuanjun, LI Lei, PENG Liang, WANG Yetong, CAI Weiquan. Effect of Coordinatively Unsaturated Metal Sites in Porous Aromatic Frameworks on Hydrogen Storage Capacity[J]. Acta Physico-Chimica Sinica, 2018, 34(3): 286-295.
[2] ZHANG Chen-Hui, ZHAO Xin, LEI Jin-Mei, MA Yue, DU Feng-Pei. Wettability of Triton X-100 on Wheat (Triticum aestivum) Leaf Surfaces with Respect to Developmental Changes[J]. Acta Physico-Chimica Sinica, 2017, 33(9): 1846-1854.
[3] YU Jing-Hua, LI Wen-Wen, ZHU Hong. Effect of the Diameter of Carbon Nanotubes Supporting Platinum Nanoparticles on the Electrocatalytic Oxygen Reduction[J]. Acta Physico-Chimica Sinica, 2017, 33(9): 1838-1845.
[4] YAO Chan, LI Guo-Yan, XU Yan-Hong. Carboxyl-Enriched Conjugated Microporous Polymers: Impact of Building Blocks on Porosity and Gas Adsorption[J]. Acta Physico-Chimica Sinica, 2017, 33(9): 1898-1904.
[5] MO Zhou-Sheng, QIN Yu-Cai, ZHANG Xiao-Tong, DUAN Lin-Hai, SONG Li-Juan. Influencing Mechanism of Cyclohexene on Thiophene Adsorption over CuY Zeolites[J]. Acta Physico-Chimica Sinica, 2017, 33(6): 1236-1241.
[6] DAI Wei-Guo, HE Dan-Nong. Selective Photoelectrochemical Oxidation of Chiral Ibuprofen Enantiomers[J]. Acta Physico-Chimica Sinica, 2017, 33(5): 960-967.
[7] ZHAO Li-Ping, MENG Wei-Shuai, WANG Hong-Yu, QI Li. MoS2-C Composite as Negative Electrode Material for Sodium-Ion Supercapattery[J]. Acta Physico-Chimica Sinica, 2017, 33(4): 787-794.
[8] HE Lei, ZHANG Xiang-Qian, LU An-Hui. Two-Dimensional Carbon-Based Porous Materials: Synthesis and Applications[J]. Acta Physico-Chimica Sinica, 2017, 33(4): 709-728.
[9] CHENG Fang, WANG Han-Qi, XU Kuang, HE Wei. Preparation and Characterization of Dithiocarbamate Based Carbohydrate Chips[J]. Acta Physico-Chimica Sinica, 2017, 33(2): 426-434.
[10] YIN Jin-Ling, LIU Jia, WEN Qing, WANG Gui-Ling, CAO Dian-Xue. Phosphomolybdic Acid as a Mediator for Indirect Carbon Electrooxidation in LowTemperature Carbon Fuel Cell[J]. Acta Physico-Chimica Sinica, 2017, 33(2): 370-376.
[11] LI Dao-Yan, ZHANG Ji-Chen, WANG Zhi-Yong, JIN Xian-Bo. Preparation of Activated Carbon from Honeycomb-Like Porous Gelatin for High-Performance Supercapacitors[J]. Acta Physico-Chimica Sinica, 2017, 33(11): 2245-2252.
[12] ZHANG Tao-Na, XU Xue-Wen, DONG Liang, TAN Zhao-Yi, LIU Chun-Li. Molecular Dynamics Simulations of Uranyl Species Adsorption and Diffusion Behavior on Pyrophyllite at Different Temperatures[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2013-2021.
[13] CHEN Jun-Jun, SHI Cheng-Wu, ZHANG Zheng-Guo, XIAO Guan-Nan, SHAO Zhang-Peng, LI Nan-Nan. 4.81%-Efficiency Solid-State Quantum-Dot Sensitized Solar Cells Based on Compact PbS Quantum-Dot Thin Films and TiO2 Nanorod Arrays[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2029-2034.
[14] ZHANG Shao-Zheng, LIU Jia, XIE Yan, LU Yin-Ji, LI Lin, Lü Liang, YANG Jian-Hui, WEI Shi-Hao. First-Principle Study of Hydrogen Evolution Activity for Two-dimensional M2XO2-2x(OH)2x (M=Ti, V; X=C, N)[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 2022-2028.
[15] LI Yan-Ting, LIU Xin-Min, TIAN Rui, DING Wu-Quan, XIU Wei-Ning, TANG Ling-Ling, ZHANG Jing, LI Hang. An Approach to Estimate the Activation Energy of Cation Exchange Adsorption[J]. Acta Physico-Chimica Sinica, 2017, 33(10): 1998-2003.