Evaluation of Removal Efficiency of Ni(II) and 2,4-DCP Using in Situ Nitrogen-Doped Biochar Modified with Aquatic Animal Waste.

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ID: 67366
2019
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Abstract
Currently, biochar (BC) has shown promising potential in groundwater and surface-water remediation. In this work, husks based biochar (TBC) was prepared and modified with aquatic animal waste (shrimp and crab) to produce shrimp-modified biochar (SBC) and crab-modified biochar (CBC), respectively. The as-prepared BCs (TBC, SBC, and CBC) were characterized by X-ray diffraction, scanning electron microscopy, elemental analysis, Boehm titration, Fourier transform infrared, and X-ray photoelectron spectroscopy. SBC and CBC had more developed nitrogen-containing functional groups than TBC, which indicates that the crude proteins in shrimp and crab have successfully achieved in situ nitrogen doping. Results of batch experiments showed that SBC and CBC had larger groundwater pollutants (2,4-dichlorophenol (2,4-DCP) and Ni(II)) adsorption capacities than TBC. According to batch adsorption experiment and characterization analysis results, the proposed adsorption mechanism of 2,4-DCP includes hydrogen bonding and π-π electron-donor-acceptor interaction, while the mechanism for Ni(II) adsorption are proposed to be surface complexation, ion exchange, and electrostatic attraction.
Reference Key
yin2019evaluationacs Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yin, Wenjun;Zhang, Wei;Zhao, Congcong;Xu, Jingtao;
Journal ACS omega
Year 2019
DOI
10.1021/acsomega.9b02769
URL
Keywords
biochar plant growth soil quality brewery byproducts

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