alexa Synthesis of Manganese Chloride Activated Carbon Derivi
ISSN: 2380-2391

Journal of Environmental Analytical Chemistry
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Research Article

Synthesis of Manganese Chloride Activated Carbon Deriving from Wheat Straw and its Adsorption Mechanism for Arsenic and Chromium

Ningyuan Zhu1,2, Tingmei Yan1*, Jun Qiao1 and Honglei Cao1,2

1Institute of Soil Science, Chinese Academy of Sciences, No. 71 East Beijing Road, Nanjing 210008, China

2Graduate School of the Chinese Academy of Sciences, Beijing 100039, China

*Corresponding Author:
Tingmei Yan
Institute of Soil Science
Chinese Academy of Sciences
No. 71 East Beijing Road
Nanjing 210008, China
Tel: 8602586881308
E-mail: [email protected]

Received Date: March 01, 2016; Accepted Date: March 03, 2016; Published Date: March 10, 2016

Citation: Zhu N, Yan T, Qiao J, Cao H (2016) Synthesis of Manganese Chloride Activated Carbon Deriving from Wheat Straw and its Adsorption Mechanism for Arsenic and Chromium. J Environ Anal Chem 3:172. doi:10.4172/2380-2391.1000172

Copyright: © 2016 Zhu N, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Manganese impregnated biochar deriving from wheat straw were synthesized to treat heavy metal contamination. Nitrogen adsorption-desorption isotherms, scanning electron microscopy-energy dispersive X-Ray spectroscopy (SEM-EDS), and X-ray diffraction (XRD) were used to determine the characteristics of adsorbents. Batch adsorption experiments demonstrated a fit Langmuir model with the maximum adsorption capacity of 0.216 mmol g-1 for As (III) and a suitable Freundlich model for Cr (VI) respectively. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) were measured to explore probable adsorption mechanisms involving As and Cr adsorption, which indicated that the Lewis acid-base interactions play a more important role in arsenic adsorption while electrostatic interaction along with the reduction Cr (VI) to Cr (III) contribute primarily to chromium adsorption.

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