1
|
Côrtes PB, Bitencourt Leão M, Reis GLR, de Vargas DD, Murillo GF, Köhler MH, Ferreira de Matos Jauris C. Unraveling the Phosphorus Adsorption Mechanisms in Three-dimensional Reduced Graphene Oxide Materials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:11173-11183. [PMID: 38753444 PMCID: PMC11140737 DOI: 10.1021/acs.langmuir.4c00810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/18/2024]
Abstract
To prevent eutrophication, controlling the phosphate concentration levels is one of the most important issues in surface water management. One of the most utilized methods is phosphate adsorption. However, its application faces a bottleneck due to the unclear understanding of adsorption and interaction mechanisms. The present work unlocks the phosphorus adsorption mechanisms in three-dimensional reduced graphene oxide with different reduction levels and pore sizes to remove phosphate from water using experiments and multiscale simulations. Experiments were performed to evaluate the influence of pH, ionic strength, and temperature on the adsorption. Molecular Dynamics and Ab Initio simulations evaluated the influence of the pore size and oxidation degrees of the materials. We show that the adsorption capacity of the materials increases with increasing pH and ionic strength and decreasing temperature. It is observed that the more oxidized the material and the less compact the structure, the better the adsorption. These results are theoretically explained in terms of the interaction of functional groups and the clustering of phosphate ions, which results in better adsorption in materials with larger pores. The underlying mechanisms for the 3D-reduced graphene oxide performance were confirmed by spectroscopy analysis. All the results show that 3D-reduced graphene oxide can sorb phosphate in different complex water remediation systems with characteristics that can be modulated by changing the material synthesis method.
Collapse
Affiliation(s)
- Patrick
R. B. Côrtes
- Department
of Physics, Federal University of Santa
Maria, Santa
Maria 97105-900, Brazil
| | - Mayara Bitencourt Leão
- Environmental
Science and Technology Center, Federal University
of Pampa, Caçapava do Sul 96570000, Brazil
| | - Gabriel Lopes Rezende Reis
- Environmental
Science and Technology Center, Federal University
of Pampa, Caçapava do Sul 96570000, Brazil
| | - Douglas D. de Vargas
- Department
of Physics, Federal University of Santa
Maria, Santa
Maria 97105-900, Brazil
| | | | - Mateus H. Köhler
- Department
of Physics, Federal University of Santa
Maria, Santa
Maria 97105-900, Brazil
| | | |
Collapse
|
2
|
Jiang J, Tu Y, Gu Z. Magnesium Ion Gated Ion Rejection through Carboxylated Graphene Oxide Nanopore: A Theoretical Study. Molecules 2024; 29:827. [PMID: 38398579 PMCID: PMC10892045 DOI: 10.3390/molecules29040827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/08/2024] [Accepted: 02/10/2024] [Indexed: 02/25/2024] Open
Abstract
While nanoporous graphene oxide (GO) is recognized as one of the most promising reverse osmosis desalination membranes, limited attention has been paid to controlling desalination performance through the large GO pores, primarily due to significant ion leakage resulting in the suboptimal performance of these pores. In this study, we employed a molecular dynamics simulation approach to demonstrate that Mg2+ ions, adhered to carboxylated GO nanopores, can function as gates, regulating the transport of ions (Na+ and Cl-) through the porous GO membrane. Specifically, the presence of divalent cations near a nanopore reduces the concentration of salt ions in the vicinity of the pore and prolongs their permeation time across the pore. This subsequently leads to a notable enhancement in salt rejection rates. Additionally, the ion rejection rate increases with more adsorbed Mg2+ ions. However, the presence of the adsorbed Mg2+ ions compromises water transport. Here, we also elucidate the impact of graphene oxidation degree on desalination. Furthermore, we design an optimal combination of adsorbed Mg2+ ion quantity and oxidation degree to achieve high water flux and salt rejection rates. This work provides valuable insights for developing new nanoporous graphene oxide membranes for controlled water desalination.
Collapse
Affiliation(s)
- Jianjun Jiang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China;
- Department of Physics, Sanjiang College, Nanjing 210012, China
| | - Yusong Tu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China;
- College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Zonglin Gu
- College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, China
| |
Collapse
|
3
|
Transport behavior of water and ions through positively charged nanopores. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
4
|
|
5
|
Yao X, Xu J, Adhikari B, Lv W, Chen H. Mooncake production waste: Nutritional value and comprehensive utilization of salted duck egg white. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xinjun Yao
- College of Biological and Food Engineering Anhui Polytechnic University 241000 Wuhu Anhui China
| | - Jicheng Xu
- College of Biological and Food Engineering Anhui Polytechnic University 241000 Wuhu Anhui China
| | - Benu Adhikari
- School of Science RMIT University Melbourne VIC 3083 Australia
| | - Weiqiao Lv
- College of Engineering China Agricultural University 100083 Beijing China
| | - Huizhi Chen
- State Key Laboratory of Food Science and Technology Jiangnan University 214122 Wuxi, Jiangsu China
| |
Collapse
|
6
|
The effect of nanopores geometry on desalination of single-layer graphene-based membranes: A molecular dynamics study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116749] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
7
|
Oviroh PO, Jen TC, Ren J, Mohlala LM, Warmbier R, Karimzadeh S. Nanoporous MoS 2 Membrane for Water Desalination: A Molecular Dynamics Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7127-7137. [PMID: 34048656 DOI: 10.1021/acs.langmuir.1c00708] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Molybdenum disulfide (MoS2), a two-dimensional (2D) material, promises better desalination efficiency, benefiting from the small diffusion length. While the monolayer nanoporous MoS2 membrane has great potential in the reverse osmosis (RO) desalination membrane, multilayer MoS2 membranes are more feasible to synthesize and economical than the monolayer MoS2 membrane. Building on the monolayer MoS2 membrane knowledge, the effects of the multilayer MoS2 membrane in water desalination were explored, and the results showed that increasing the pore size from 3 to 6 Å resulted in higher permeability but with lower salt rejection. The salt rejection increases from 85% in a monolayer MoS2 membrane to about 98% in a trilayer MoS2 membrane. When averaged over all three types of membranes studied, the ions rejection follows the trend of trilayer > bilayer > monolayer. Besides, a narrow layer separation was found to play an important role in the successful rejection of salt ions in bilayer and trilayer membranes. This study aims to provide a collective understanding of this high permiselective MoS2 membrane's realization for water desalination, and the findings showed that the water permeability of the MoS2 monolayer membrane was in the order of magnitude greater than that of the conventional RO membrane and the nanoporous MoS2 membrane can have an important place in the purification of water.
Collapse
Affiliation(s)
- Peter Ozaveshe Oviroh
- Department of Mechanical Engineering Science, University of Johannesburg, Corner Kingsway and University Road, Auckland Park, 2092, Johannesburg, South Africa
| | - Tien-Chien Jen
- Department of Mechanical Engineering Science, University of Johannesburg, Corner Kingsway and University Road, Auckland Park, 2092, Johannesburg, South Africa
| | - Jianwei Ren
- Department of Mechanical Engineering Science, University of Johannesburg, Corner Kingsway and University Road, Auckland Park, 2092, Johannesburg, South Africa
| | - Lesego M Mohlala
- Department of Metallurgical Engineering, University of Johannesburg, Doornfontein, 2006, Johannesburg, South Africa
| | - Robert Warmbier
- Department of Physics, University of Johannesburg, Corner Kingsway and University Road, Auckland Park, 2092, Johannesburg, South Africa
| | - Sina Karimzadeh
- Department of Mechanical Engineering Science, University of Johannesburg, Corner Kingsway and University Road, Auckland Park, 2092, Johannesburg, South Africa
| |
Collapse
|
8
|
Liu L, Liu Y, Qi Y, Song M, Jiang L, Fu G, Li J. Hexagonal boron nitride with nanoslits as a membrane for water desalination: A molecular dynamics investigation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117409] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
9
|
The effect of chemical functional groups and salt concentration on performance of single-layer graphene membrane in water desalination process: A molecular dynamics simulation study. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112478] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
10
|
Döpke MF, Moultos OA, Hartkamp R. On the transferability of ion parameters to the TIP4P/2005 water model using molecular dynamics simulations. J Chem Phys 2020; 152:024501. [PMID: 31941316 DOI: 10.1063/1.5124448] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Countless molecular dynamics studies have relied on available ion and water force field parameters to model aqueous electrolyte solutions. The TIP4P/2005 model has proven itself to be among the best rigid water force fields, whereas many of the most successful ion parameters were optimized in combination with SPC/E, TIP3P, or TIP4P/Ew water. Many researchers have combined these ions with TIP4P/2005, hoping to leverage the strengths of both parameter sets. To assess if this widely used approach is justified and to provide a guide in selecting ion parameters, we investigated the transferability of various commonly used monovalent and multivalent ion parameters to the TIP4P/2005 water model. The transferability is evaluated in terms of ion hydration free energy, hydration radius, coordination number, and self-diffusion coefficient at infinite dilution. For selected ion parameters, we also investigated density, ion pairing, chemical potential, and mean ionic activity coefficients at finite concentrations. We found that not all ions are equally transferable to TIP4P/2005 without compromising their performance. In particular, ions optimized for TIP3P water were found to be poorly transferable to TIP4P/2005, whereas ions optimized for TIP4P/Ew water provided nearly perfect transferability. The latter ions also showed good overall agreement with experimental values. The one exception is that no combination of ion parameters and water model considered here was found to accurately reproduce experimental self-diffusion coefficients. Additionally, we found that cations optimized for SPC/E and TIP3P water displayed consistent underpredictions in the hydration free energy, whereas anions consistently overpredicted the hydration free energy.
Collapse
Affiliation(s)
- Max F Döpke
- Process & Energy Department, Delft University of Technology, Leeghwaterstraat 39, 2628 CB Delft, The Netherlands
| | - Othonas A Moultos
- Process & Energy Department, Delft University of Technology, Leeghwaterstraat 39, 2628 CB Delft, The Netherlands
| | - Remco Hartkamp
- Process & Energy Department, Delft University of Technology, Leeghwaterstraat 39, 2628 CB Delft, The Netherlands
| |
Collapse
|
11
|
Li Y, Du G, Mao G, Guo J, Zhao J, Wu R, Liu W. Electrical Field Regulation of Ion Transport in Polyethylene Terephthalate Nanochannels. ACS APPLIED MATERIALS & INTERFACES 2019; 11:38055-38060. [PMID: 31553570 DOI: 10.1021/acsami.9b13088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Rectified ion transport in nanochannels is the basis of ion channels in biological cells and has inspired emerging nanochannel applications in ion separation, Coulter counters, and biomolecule detection and nanochannel energy harvesters. In this work we fabricated a polyethylene terephthalate (PET) conical nanochannel using latent ion track etching technique and then systematically studied the ion transport and influence of cation species on the nanochannel surface with cyclic I-V measurement. We discovered the electrical regulation of the reversible and irreversible modification of the nanochannel transportation by bivalent and trivalent cations, revealing the existence of the switching threshold voltage which can control the current rectification in bivalent solution. The proposed mechanism of the transport state transition in the PET nanochannel mimics behaviors of voltage-gated biological ion channels. These findings provide new insight into the understanding of the ion channel signaling and translocation control of charged particles in nanochannel applications.
Collapse
Affiliation(s)
- Yaning Li
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Guanghua Du
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Guangbo Mao
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jinlong Guo
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
| | - Jing Zhao
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Ruqun Wu
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Wenjing Liu
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| |
Collapse
|
12
|
|