Towards the realisation of high permi-selective MoS2 membrane for water desalination
Summary¶
The introduction cites climate change and freshwater stress, notes that most Earth water is saline, and positions reverse-osmosis membranes as an energy-intensive but widespread desalination technology whose performance depends on permeability, rejection, fouling, and material durability. Oviroh et al. review molybdenum disulfide (MoS₂) as a candidate 2D membrane material for desalination, motivated by climate stress on freshwater and the water–energy nexus. The article contrasts polymeric reverse-osmosis membranes with atomically thin MoS₂, arguing that nanometer thickness can increase water permeability by shortening diffusion lengths while—if pores/defects are controlled—maintaining ion rejection. The review organizes reported experimental strategies, discusses manufacturing and defect challenges for near-atomic membranes, and outlines fabrication and process needs for industrial translation. Adri van Duin is a co-author, linking the piece to the group’s 2D materials and interface modeling threads.
Methods¶
Literature synthesis (D)¶
Narrative review of MoS\(_2\) 2D membranes for desalination: pore engineering, transport metrics, fabrication, scalability—methods belong to cited studies.
Atomistic simulation stance¶
No new MD/DFT campaign in the main text; any atomistic membrane/MD work is second-hand from cited papers.
1 — MD application. N/A in this npj Clean Water review for a reproducible LAMMPS- or GROMACS-class recipe—N/A for a universal timestep, NPT barostat, or E-field table; N/A for metadynamics/umbrella in this authored main text (if cited work uses them, go to that DOI).
2 — Force training. N/A—not a ReaxFF or other reactive FF parametrization paper; N/A for an optimizer-weight line.
3 — Static DFT. N/A as a new PBE+DFT study; N/A for a VASP k-mesh in this work—the Oviroh et al. article is narrative+bibliography, not a static-QM data release.
Review organization (additional). The article walks through MoS\(_2\) membrane concepts starting from monolayer permeability arguments, then summarizes pore engineering routes (including defect versus sub-nm pores), interlayer spacing control, and support substrate effects that appear in experimental literature. Because each subsection cites primary studies, quantitative water permeance and ion rejection values must be traced to those sources rather than summarized as universal benchmarks here.
Findings¶
Abstract roadmap¶
Compares ion rejection/permeability strategies, discusses scalability barriers, and outlines controlled fabrication needs for industrial translation.
Practical hurdles¶
Near-atomic membrane fabrication, defect/pore control, and process integration are emphasized as lab-to-market gates.
Scope¶
Provides a roadmap narrative rather than a single benchmark number—trace metrics to primary membrane studies.
Limitations¶
The review’s engineering focus means atomistic ReaxFF or DFT studies appear only where cited authors pursued them; this page does not summarize pore MD benchmarks by itself. Performance metrics (permeability, rejection, stability) vary widely with pore geometry, support layers, and measurement conditions across cited works; readers must compare studies carefully. This review does not present new atomistic simulations in the main text.
Confidence rationale: high—clear scope and author claims from the open extract.
Reader notes (navigation)¶
van Duin co-authorship makes this review a useful bridge between membrane engineering discourse and 2D simulation themes elsewhere in the corpus, even though the article itself is not a ReaxFF methods paper.