Themed collection Environmental Remediation

Emerging environmental applications of confined-MNP nanomaterials and the chemistry of the confinement effects.

Engineered nanomaterials alone or in combination with other technologies may improve in situ subsurface remediation of legacy and emerging contaminants.

The removal of gases, organics, heavy metals and radionuclides on zeolitic imidazolate frameworks (ZIFs).

The halloysite clay nanotube lumen has shown great application potential in the field of environmental remediation. This relies on delicate manipulation of the clay nanotube lumen and benefits from the unique functionality of the nanotube lumen.

This review highlights the characteristics of adsorption and desorption of aromatic VOCs on various PCAs as well as the integrated technologies for emission control and resource recovery of industrial VOC exhaust.

The simultaneous use of bio-resources and sustainable materials as reducing/capping agents and supporting materials to obtain supported metal nanoparticles is a significant green approach applied to wastewater treatment.

This review highlights recent and important advances related to the structure properties and application of graphdiyne (GDY)-based nanocomposites for environmental remediation.

This review highlights recent and important advances related to the synthesis, characterization and application of graphene quantum dot (GQD)-based nanocomposites for the agriculture and environmental sectors.

This review highlights recent achievements and perspectives of emerging two-dimensional nanomaterials for the elimination of radionuclides in environmental applications.

Direct deposition of nano-dry-salt on nonwovens was developed as a process that can be incorporated into conventional nonwoven production for timely application of biosafe anticoronaviral surfaces and reliable aerosol filtration performance.

The internal electric field in nanosheets induces the balanced generation of holes and superoxide radicals, which synergistically degrade ciprofloxacin rapidly.

Nanotechnology has been widely used in agriculture to improve plant growth and stress tolerance.

The NBs have the best removal rate of petroleum hydrocarbon pollutants in porous media under weakly alkaline condition (pH = 7–8). Both strong acidity and strong alkalinity are not conducive to the flushing removal of pollutants.

A novel hypercrosslinked triazine COF photocatalyst (HCTF-2) with excellent photocatalytic performance was constructed by molecular expansion. HCTF-2 has a larger specific surface area and exhibits excellent molecular oxygen activation ability.

The construction of Zr:BiVO₄@Bi₂S₃–CoS heterojunctions has been demonstrated to be an effective way to facilitate PEC water splitting and degradation of organic pollutants.

The crystalline phase significantly affects the efficiency of TiO₂ nanomaterials in catalyzing hydrolysis reactions of organophosphates, primarily by modulating the surface Lewis acidity of TiO₂.

Selenate removal from mine-influenced brine down to 20 μg L⁻¹ was demonstrated through continuous photocatalytic reduction using nano-TiO₂, highlighting UV reactor parameters and design considerations critical for practical real-world application.

With the assistance of visible-light, MEF directly used pollutant energy to generate H₂O₂ and enhance removal, giving a new idea for pollutant resource recovery.

A novel and facile strategy was applied in the design and fabrication of a micromotor-assisted dual-functional platform for the sensitive detection and rapid removal of aniline in water.

Fe–N₅ SAC efficiently activates peroxymonosulfate, resulting in remarkable 4-CP degradation efficiency with turnover frequency of 59.8 L (min g)⁻¹, and holds potential application in environmental remediation.

Ruthenium species were confined within hollow carbon nitride spheres to efficiently activate peroxymonosulfate to produce reactive radicals and singlet oxygen for decomposing a pharmaceutical contaminant in wastewater, i.e., acetaminophen.

Three Co–N/C-based catalysts with different types of nitrogen are prepared and employed to activate peroxymonosulfate for tetracycline degradation.

Herein, carbon nanotubes (CNTs) are reported as an efficient catalyst and nanoreactor for activating CaSO₃ for water decontamination.

MOF@cotton@chitosan composite for nanomolar fluorescence sensing of nitroxinil drug and p-arsanilic acid in real samples is presented.

Janus nanosheets synergistically interact with oil-degrading bacteria for marine oil spill remediation.

We have developed a sufficient electron-donating system. With the presence of the two most active transition metals with multiple valences, several as-formed redox pairs can provide sufficient electrons to then generate free radicals.

The effect of the phase transition from bismuth iodide to bismuth oxyiodides on the photodegradation efficiency of nitazoxanide is explored.

Polluted wastewater containing organic pollutants and heavy metals is increasing and harms environmental ecosystems and human health.

Hollow ZIF-8-derived carbon is fabricated via TA etching and carbonization. Graphitic N plays a vital role in electron transfer non-radical oxidization. The hollow structure induces the evolution from an ROS-driven to an electron-transfer process.

Creating a high-efficiency heterojunction with enhanced photocatalytic properties is considered a promising approach to wastewater decontamination.

Construction of p–n junction BiOCl/montmorillonite photocatalysts with enhanced carrier separation efficiency for degradation of antibiotics.

CdS modified GCN has been explored as a high-efficiency piezocatalyst for 2,4-DCP degradation.

The existence of MnO_x@Fe₃O₄ bimetallic nanoparticles improved the adsorption capacities by increasing the adsorption sites of PAC and the self-catalytic reaction extended the service life of MnO_x@Fe₃O₄-PAC without additional use of oxidants.

This work revealed the dual activation mechanism of O₂ and H₂O on nano Ag/GDY and the excellent antibacterial efficiency.

In this work, the structural parameters of three sustainable REVO₄ electrocatalysts, with variation in RE site with RE = Ce, Pr, Nd for the electrochemical monitoring of metronidazole in environmental samples.

A magnetic iron “nano-fishnet” (i.e., alkylated nanoscale zerovalent iron grown on naturally derived cellulose nanofibers (ac-nZVI)) was fabricated for the rapid removal and surface clean-up of micro/nanoplastics from seawater.

In this study, fungi-enabled hierarchical porous magnetic carbon (FPC/nZVI) with an ultrahigh surface area was synthesized using fungal fermentation and used for the efficient remediation of As(III) in water and soil.

Regulating the distance of Fe₂O₃ nanowires and Au nanoparticles achieves the oriented generation of ˙OH and ˙O²⁻ for efficient degradation of contaminants.

Regulating the abundance of oxygen vacancies over α-MnO₂ nanocatalysts achieves the oriented generation of ¹O₂ for efficient degradation of pharmaceuticals.

We have investigated the local atomic structures and electronic properties of CFTNF (Cu_xO/Fe₂O₃/TiO₂(B)) towards photocatalytic H₂ production and trimethoprim degradation.

P and N co-doped Fe SACs with dual reaction sites exhibited an ultra-low activation energy and exhibited excellent BPA degradation efficiency in the PMS-based heterogeneous Fenton-like reaction.

Capacitive deionization (CDI) is a promising technique for desalination of brackish water because it is highly energy-efficient and environmentally friendly.

SAFe/CNS synthesized via a cocoon silk chemistry strategy exhibits ultrahigh specific surface area, which brings out a large adsorption capacity for organic pollutants, thereby effectively utilizing the vicinal as-generated active species.

Graphene oxide modulated dual S-scheme ultrathin heterojunctions with iron phthalocyanine and phase-mixed bismuth molybdate as wide visible-light catalysts for tetracycline degradation.

Peracetic acid (PAA)-based advanced oxidation processes have garnered increasing attention for eliminating organic pollutants in wastewater treatment.

A facile modulation strategy was adopted to fabricate hierarchically porous HP-UOH-X via introducing benzoic acid with different dosages into the precursor solution of UiO-66-(OH)₂.

Adjusting the structure and surface profiles of CeO₂ could significantly modify its catalytic performance for CVOCs.

The dynamic behavior and anion exchange mechanism of ⁹⁹TcO₄⁻ on imine-linked cationic COFs are elucidated to provide theoretical basis for developing novel cationic COFs materials for environmental remediation.

A ZnIn₂S₄ nanoflake-decorated 24-faceted concave MIL-88B(Fe) polyhedron S-scheme system was perfectly created, manifesting simultaneously enhanced photocatalytic cleanup of Cr(VI) and tetracycline.

An increase in the fluorescence lifetime of rhodamine B dye, when in contact with hematite nanoparticles in methanol from mildly acidic to alkaline pH, is consistent with the transfer of electrons from excited dye to the hematite conduction band.

Advanced oxidation processes (AOPs) as an efficient oxidation technology, have been extensively applied for degrading recalcitrant organic contaminants via the generated reactive oxygen species from the activation reaction of catalysts.

Fe₂O₃ nanoparticles alleviated Cd uptake mainly via down-regulation of OsNRAMP5, OsCd1, OsIRT1 and OsIRT2 in roots, while the contribution of the enhanced formation of Fe plaque was minor.

Hydroxyapatite nanoparticles were synthesized using an environmentally friendly method via A. niger fermentation broth, and the negative effects of Cd on mung bean seedlings were alleviated by them through ion exchange and chelation mechanisms.

Industrial production activities commonly lead to excessive hexavalent chromium [Cr(VI)] and cadmium [Cd(II)] release to water and soil, which significantly endanger the ecological environment and human health.

This research provides a feasible strategy for the development and application of a novel nanosized photocatalyst and an innovative approach for the treatment of freshwater aquaculture wastewater.

Bismuth molybdate nanosheets are self-assembled from nanoparticles and exhibit outstanding photoelectrochemical properties. This material will be a potential candidate for the degradation of multi-pollutants in environmental remediation.

The synthetic process of the Zn_0.5Ni_0.5Fe₂O₄-S, N-GO sample and the proposed mechanism of pollutant degradation in the Zn_0.5Ni_0.5Fe₂O₄-S, N-GO/PMS system.

Porous carbon nitride with rich amino defects shows excellent photocatalytic activity for synergistic removal of organic and heavy metal pollutants.

Nitrogen-doped carbon nanotube encapsulated Fe₇S₈ was successfully used as a promising cathode for the high-efficiency and selective removal of Pb²⁺ ions.

A 2D/0D Bi₁₂O₁₇Cl₂/AgBr Z-scheme photocatalyst provides a jointed synchronous pathway for simultaneous Cr(VI) and TC removal.

Red phosphorus/borocarbonitride heterojunction composites were prepared by a vaporization–deposition method for excellent photocatalytic activity towards tetracycline degradation.

In this study, a large-area N-doped graphene film (NG/NF) was fabricated on a nickel foam (NF) substrate via thermal chemical vapor deposition along with the flow of gaseous C₂H₄/NH₃ mixtures.

A novel Ag/AgBr@BiOBr/Bi₂O₃ Z-scheme plasmonic photocatalyst decomposed organic pollutants efficiently with high stability under visible light because of singlet oxygen formation.

Construction of a type-II heterostructured Sb₂S₃/CdS photocatalyst for highly improved simulated-sunlight-driven Cr(VI) reduction.

This study investigated the interaction of Shewanella oneidensis MR-1 and CdS in azo dye decolorization, showing that CdS could act as a light-switch to achieve fast light-driven decolorization.

A series of porous carbon nano-sheets with tunable sp²/sp³ carbon hybridizations are prepared and exhibit outstanding catalytic activity for the removal of various pollutants via persulfate activation.

A three-dimensional OMS-2 catalyst was synthesized via a bimetallic-doping strategy and O₂ could be activated over it under ambient conditions for oxidative degradation of aqueous organics.

Co-localization of arsenic and silicon at the peripheral tissues and vascular system of rice nodes as revealed by LA-ICP-MS is crucial to understand the key mechanism regulated by foliar application of silica nanoparticles.

Defective ultrathin-nanosheets achieved breaking of NO and subsequent reconstruction of NN bonds to generate N₂/O₂ in photocatalytic NO decomposition tests.

The addition of nZVI could improve the degradation efficiency for chlorophenothane using chicken manure compost, while the compost mitigated the negative effect of nZVI on the bacterial community structure in sediment.