Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.7
4.6
Journals
Molecules
Special Issues
Sorption Materials in Environment
molecules-logo
Submit to Molecules Review for Molecules Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Sorption Materials in Environment

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 5026

Special Issue Editors

Prof. Dr. Eric Guibal

E-Mail Website
Guest Editor
Institut Mines Telecom - Mines Ales, C2MA - Centre des Matériaux des Mines d'Alès, Polymères, Hybrides et Composites (PCH), 6, Avenue de Clavières, CEDEX, F30319 Alès, France
Interests: biopolymers (alginate, chitosan); interactions of sorbents/biosorbents with metal ions (wastewater treatment and valorization of mineral resources); bio-based advanced materials (heterogeneous catalysis, antimicrobial surfaces, fire-retardant properties); shaping and conditioning of biopolymers
Special Issues, Collections and Topics in MDPI journals
Dr. Mohammed Hamza

E-Mail Website
Guest Editor
1. Nuclear Materials Authority, POB 530, El-Maadi, Cairo 11728, Egypt
2. School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
Interests: removal of contaminants (dye removal and heavy metal ions); ore processing (leaching, bioleaching); extraction technology (impregnation, biosorption, organic resins); designing of biomaterials; metal valorization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sorption processes are widely used for the recovery and removal of valuable molecules and substances from liquid and gas environments. These processes are utilized for two complementary or simultaneous objectives: decontamination and valorization of scarce resources (primary resources and water flows). In any case, these two objectives contribute to the sustainable development of industry in a world increasingly subject to environmental constraints.

Developing new materials and optimizing their application with these targets has been a subject of increasing attention for in recent decades. Despite relevant advances, there is still a need to design processes and sorbent materials able to carry out valorization and/or deeper decontamination of liquid effluents or gaseous streams.

We are inviting relevant contributions considering contamination and/or valorization of mineral resources and industrial effluents (metal ions), organic contamination (dyes, drugs, persistent pollutants) or gaseous pollutants (hydrogen sulfide, VOCs, etc.). Contributions may concern: the synthesis and characterization of new sorbents, optimization of sorption processes with investigation of critical operating parameters, design of operating modes, critical evaluation of economic aspects (derived from sorption processes) and integration of sorption processes for the valorization of resources.

Prof. Dr. Eric Guibal
Dr. Mohammed F. Hamza
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • new sorbents for sustainable development
  • decontamination
  • resource valorization
  • recycling
  • applications in air pollution
  • applications in water treatment
  • sorbent characterization
  • engineering design for sorption optimization

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

12 pages, 3501 KiB  
Article
Dynamic Adsorption of H2S onto a Goethite-Based Material
by Francisco Jose Alguacil, Manuel Ángel Alonso, Félix Antonio López and Jose Ignacio Robla
Molecules 2022, 27(22), 7983; https://doi.org/10.3390/molecules27227983 - 17 Nov 2022
Cited by 1 | Viewed by 1133
Abstract
The use of adsorption technology to remove H2S from synthetic gas (H2S and N2) using a goethite-based adsorbent was investigated. The influence of the H2S feed concentration (150–600 mg), the adsorbent dosage (1–4 g), and [...] Read more.
The use of adsorption technology to remove H2S from synthetic gas (H2S and N2) using a goethite-based adsorbent was investigated. The influence of the H2S feed concentration (150–600 mg), the adsorbent dosage (1–4 g), and the gas flow rate (210–540 cm3/min) on the breakthrough curves and H2S adsorption on the adsorbent at the breakthrough point was investigated. Dynamic column experiments were performed to provide data for the theoretical models and to verify the performance of the system in the adsorption process. The theoretical models used in the present work were found to predict the adsorption breakthrough performance reasonably well. Full article
(This article belongs to the Special Issue Sorption Materials in Environment)
►▼ Show Figures

Figure 1

14 pages, 2682 KiB  
Article
Use of Biochar Prepared from the Açaí Seed as Adsorbent for the Uptake of Catechol from Synthetic Effluents
by Uendel dos Santos Feitoza, Pascal S. Thue, Eder C. Lima, Glaydson S. dos Reis, Navid Rabiee, Wagner S. de Alencar, Beatris L. Mello, Younes Dehmani, Jörg Rinklebe and Silvio L. P. Dias
Molecules 2022, 27(21), 7570; https://doi.org/10.3390/molecules27217570 - 04 Nov 2022
Cited by 13 | Viewed by 1939
Abstract
This work proposes a facile methodology for producing porous biochar material (ABC) from açaí kernel residue, produced by chemical impregnation with ZnCl2 (1:1) and pyrolysis at 650.0 °C. The characterization was achieved using several techniques, and the biochar material was employed as [...] Read more.
This work proposes a facile methodology for producing porous biochar material (ABC) from açaí kernel residue, produced by chemical impregnation with ZnCl2 (1:1) and pyrolysis at 650.0 °C. The characterization was achieved using several techniques, and the biochar material was employed as an adsorbent to remove catechol. The results show that ABC carbon has hydrophilic properties. The specific surface area and total pore volume are 1315 m2·g−1 and 0.7038 cm3·g−1, respectively. FTIR revealed the presence of oxygenated groups, which can influence catechol adsorption. The TGA/DTG indicated that the sample is thermally stable even at 580 °C. Adsorption studies showed that equilibrium was achieved in <50 min and the Avrami kinetic model best fits the experimental data, while Freundlich was observed to be the best-fitted isotherm model. Catechol adsorption on ABC biochar is governed by van der Waals forces and microporous and mesoporous filling mechanisms. The Qmax is 339.5 mg·g−1 (40 °C) with 98.36% removal of simulated effluent, showing that açaí kernel is excellent biomass to prepare good biochar that can be efficiently used to treat real industrial effluents. Full article
(This article belongs to the Special Issue Sorption Materials in Environment)
►▼ Show Figures

Graphical abstract

22 pages, 2958 KiB  
Article
Enhancement of Cerium Sorption onto Urea-Functionalized Magnetite Chitosan Microparticles by Sorbent Sulfonation—Application to Ore Leachate
by Mohammed F. Hamza, Eric Guibal, Adel A.-H. Abdel-Rahman, Marwa Salem, Mahmoud S. Khalafalla, Yuezhou Wei and Xiangbiao Yin
Molecules 2022, 27(21), 7562; https://doi.org/10.3390/molecules27217562 - 04 Nov 2022
Cited by 6 | Viewed by 1560
Abstract
The recovery of strategic metals such as rare earth elements (REEs) requires the development of new sorbents with high sorption capacities and selectivity. The bi-functionality of sorbents showed a remarkable capacity for the enhancement of binding properties. This work compares the sorption properties [...] Read more.
The recovery of strategic metals such as rare earth elements (REEs) requires the development of new sorbents with high sorption capacities and selectivity. The bi-functionality of sorbents showed a remarkable capacity for the enhancement of binding properties. This work compares the sorption properties of magnetic chitosan (MC, prepared by dispersion of hydrothermally precipitated magnetite microparticles (synthesized through Fe(II)/Fe(III) precursors) into chitosan solution and crosslinking with glutaraldehyde) with those of the urea derivative (MC-UR) and its sulfonated derivative (MC-UR/S) for cerium (as an example of REEs). The sorbents were characterized by FTIR, TGA, elemental analysis, SEM-EDX, TEM, VSM, and titration. In a second step, the effect of pH (optimum at pH 5), the uptake kinetics (fitted by the pseudo-first-order rate equation), the sorption isotherms (modeled by the Langmuir equation) are investigated. The successive modifications of magnetic chitosan increases the maximum sorption capacity from 0.28 to 0.845 and 1.25 mmol Ce g−1 (MC, MC-UR, and MC-UR/S, respectively). The bi-functionalization strongly increases the selectivity of the sorbent for Ce(III) through multi-component equimolar solutions (especially at pH 4). The functionalization notably increases the stability at recycling (for at least 5 cycles), using 0.2 M HCl for the complete desorption of cerium from the loaded sorbent. The bi-functionalized sorbent was successfully tested for the recovery of cerium from pre-treated acidic leachates, recovered from low-grade cerium-bearing Egyptian ore. Full article
(This article belongs to the Special Issue Sorption Materials in Environment)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop