Carbon-Based Materials for Contaminant Removal

A special issue of Separations (ISSN 2297-8739). This special issue belongs to the section "Environmental Separations".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 2822

Special Issue Editors

Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
Interests: emerging contaminants; advanced oxidation process; photocatalysis; photodegradation; biochar carbon

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Guest Editor
Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
Interests: catalytic materials; heavy metal; wastewater treatment; soil remediation; photocatalysis

Special Issue Information

Dear Colleagues,

Environmental pollution has become a global challenge due to its adverse health effects. In recent years, the co-existence of regulated/unregulated contaminants (e.g., nitrogen phosphorus, heavy metal, pharmaceuticals and personal care products, endocrine disruptors, disinfection byproducts) has caused more complicated pollution problems, which urgently need new treatment technology. Carbon-based materials have an important role in removing environmental contaminants, and these materials are considered to be one of the newest methods for the removal of contaminants in pollution control and remediation. Considering the complexity of environmental matrices, a fundamental understanding of the roles of carbon-based materials in removing contaminants is pivotal to develop efficient eliminating technology for contaminants.

This Special Issue on “Carbon-Based Materials for Contaminant Removal” aims to present the latest findings in the development and application of carbon-based materials in pollution control in wastewater/air purification, soil remediation, as well as contaminants’ environmental fate mediated by natural carbon materials. We welcome submissions to this Special Issue in the form of original research papers and reviews that highlight promising recent research and novel trends on this topic, especially dedicated but not limited to new advances in the fields of modeling, synthesis, modification, characterization, and application of carbon-based materials for contaminant removal. Papers on quality assurance, including the environmental transformation of contaminants mediated by natural carbon materials, will also be welcome.

Dr. Yingjie Li
Prof. Dr. Senlin Tian
Guest Editors

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Keywords

  • carbon-based materials
  • emerging contaminants
  • heavy metal
  • contaminant removal
  • adsorption
  • water treatment
  • gas purification
  • soil remediation
  • advanced oxidation process
  • photodegradation/catalysis

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Published Papers (1 paper)

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Research

17 pages, 3527 KiB  
Article
Removal of Pb(II) from Aqueous Solution and Adsorption Kinetics of Corn Stalk Biochar
by Wenling Yang, Chaoyang Lu, Bo Liang, Chaohui Yin, Gao Lei, Baitao Wang, Xiaokai Zhou, Jing Zhen, Shujing Quan and Yanyan Jing
Separations 2023, 10(8), 438; https://doi.org/10.3390/separations10080438 - 2 Aug 2023
Cited by 9 | Viewed by 2016
Abstract
In this work, the Pb adsorption and removal ability of biochar from simulated Pb(II)-contaminated wastewater, adsorption isotherms, kinetics, and thermodynamics were studied. Adsorption characteristics of biochar on Pb(II) were analyzed by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscope [...] Read more.
In this work, the Pb adsorption and removal ability of biochar from simulated Pb(II)-contaminated wastewater, adsorption isotherms, kinetics, and thermodynamics were studied. Adsorption characteristics of biochar on Pb(II) were analyzed by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscope with energy dispersive spectrometer (SEM-EDS). The influence of the pH of the solution, the contact time, and the biochar dose on the removal of Pb(II) were investigated by single-factor design and response surface analysis. With the increase in biochar dose from 2 g/L to 4 g/L in wastewater, the Pb(II) amount adsorbed on biochar reduced from 21.3 mg/g to 17.5 mg/g. A weakly acidic environment was more conducive to the ligand exchange between Pb(II) ions and biochar. Pb(II) adsorption kinetics of biochar showed that the Pseudo-first-order model was more suitable than other employed models to describe the adsorption process. During the isothermal adsorption process, Langmuir and Freundlich’s isotherms fitted the adsorption data very well (R2 > 96%). The Pb (II) adsorption onto biochar was spontaneous in the specified temperature range (298–318 K) and the process was exothermic. Simultaneously, the optimal conditions were a pH of 5, a contact time of 255 min, and a biochar dose of 3 g/L, under which the maximum predicted Pb(II) removal efficiency was 91.52%. Full article
(This article belongs to the Special Issue Carbon-Based Materials for Contaminant Removal)
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