Themed collection Environmental Remediation
Pollutants transformation by metal nanoparticles in confined nanospaces
Emerging environmental applications of confined-MNP nanomaterials and the chemistry of the confinement effects.
In situ remediation of subsurface contamination: opportunities and challenges for nanotechnology and advanced materials
Engineered nanomaterials alone or in combination with other technologies may improve in situ subsurface remediation of legacy and emerging contaminants.
Recent advances in the application of zeolitic imidazolate frameworks (ZIFs) in environmental remediation: a review
The removal of gases, organics, heavy metals and radionuclides on zeolitic imidazolate frameworks (ZIFs).
Manipulation of the halloysite clay nanotube lumen for environmental remediation: a review
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.
Adsorption and desorption mechanism of aromatic VOCs onto porous carbon adsorbents for emission control and resource recovery: recent progress and challenges
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.
Graphdiyne: an emerging two-dimensional (2D) carbon material for environmental remediation
This review highlights recent and important advances related to the structure properties and application of graphdiyne (GDY)-based nanocomposites for environmental remediation.
A review on graphene quantum dots and their nanocomposites: from laboratory synthesis towards agricultural and environmental applications
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.
Layered structure-based materials: challenges and opportunities for radionuclide sequestration
This review highlights recent achievements and perspectives of emerging two-dimensional nanomaterials for the elimination of radionuclides in environmental applications.
Nano-dry-salt deposition on electret nonwoven confers anticoronaviral effect while retaining aerosol filtration performance
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.
Photocatalyzed electron exchange between organic chromophores and hematite nanoparticles and the role of solid-state charge transport
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.
Dual metal Co-anchored nanosheets to catalyze advanced oxidation processes for highly efficient oxytetracycline degradation
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.
Regulation of iron and cadmium uptake in rice roots by iron(III) oxide nanoparticles: insights from iron plaque formation, gene expression, and nanoparticle accumulation
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.
Simultaneously enhanced photocatalytic cleanup of Cr(VI) and tetracycline via a ZnIn2S4 nanoflake-decorated 24-faceted concave MIL-88B(Fe) polyhedron S-scheme system
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.
Cd stress alleviation in mung-bean seedlings with biogenic hydroxyapatite nanoparticles as ecofriendly remediation agents
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.
Enhanced simultaneous removal of Cr(VI) and Cd(II) from aqueous solution and soil: a novel carbon microsphere–calcium alginate supported sulfide-modified nZVI composite
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.
Photocatalytic degradation of ciprofloxacin in freshwater aquaculture wastewater by a CNBN membrane: mechanism, antibacterial activity, and cyclability
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.
Modulation and self-assembly of nanoparticles into bismuth molybdate nanosheets as highly efficient photocatalysts for ciprofloxacin degradation
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.
A highly dispersed magnetic polymetallic catalyst to activate peroxymonosulfate for the degradation of organic pollutants in wastewater
The synthetic process of the Zn0.5Ni0.5Fe2O4-S, N-GO sample and the proposed mechanism of pollutant degradation in the Zn0.5Ni0.5Fe2O4-S, N-GO/PMS system.
Nitrogen-rich porous polymeric carbon nitride with enhanced photocatalytic activity for synergistic removal of organic and heavy metal pollutants
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 nanoparticles for the high-efficiency and selective removal of Pb2+ by pseudocapacitive coupling
Nitrogen-doped carbon nanotube encapsulated Fe7S8 was successfully used as a promising cathode for the high-efficiency and selective removal of Pb2+ ions.
Simultaneous photocatalytic tetracycline oxidation and chromate reduction via a jointed synchronous pathway upon Z-scheme Bi12O17Cl2/AgBr: insight into intermediates and mechanism
A 2D/0D Bi12O17Cl2/AgBr Z-scheme photocatalyst provides a jointed synchronous pathway for simultaneous Cr(VI) and TC removal.
A novel nano-sized red phosphorus decorated borocarbonitride heterojunction with enhanced photocatalytic performance for tetracycline degradation
Red phosphorus/borocarbonitride heterojunction composites were prepared by a vaporization–deposition method for excellent photocatalytic activity towards tetracycline degradation.
Dual role of N-doped graphene film as a cathode material for anodic organic oxidation and persulfate production and as a planar carbocatalyst for non-electrochemical persulfate activation
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.
Microwave-assisted synthesis of a Z-scheme heterojunction Ag/AgBr@BiOBr/Bi2O3 photocatalyst for efficient organic pollutant degradation under visible light
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.
Simulated-sunlight-driven Cr(VI) reduction on a type-II heterostructured Sb2S3/CdS photocatalyst
Construction of a type-II heterostructured Sb2S3/CdS photocatalyst for highly improved simulated-sunlight-driven Cr(VI) reduction.
A light-switch for efficient decolorization of azo dye wastewater based on bacteria–semiconductor interaction
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.
Porous carbon nano-sheets as excellent carbocatalysts for organic pollutant removal via persulfate activation: the role of the sp2/sp3 carbon ratio
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.
Activation of O2 over three-dimensional manganese oxide nanoprisms under ambient conditions towards oxidative removal of aqueous organics
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.
Foliar application of silica nanoparticles alleviates arsenic accumulation in rice grain: co-localization of silicon and arsenic in nodes
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.
Mechanistic insights into the photocatalytic reduction of nitric oxide to nitrogen on oxygen-deficient quasi-two-dimensional bismuth-based perovskites
Defective ultrathin-nanosheets achieved breaking of NO and subsequent reconstruction of NN bonds to generate N2/O2 in photocatalytic NO decomposition tests.
When chicken manure compost meets iron nanoparticles: an implication for the remediation of chlorophenothane-polluted riverine sediment
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.
Oxime-modified hierarchical self-assembly polyimide microspheres for high-efficient uranium recovery from wastewater
A new oxime-modified hierarchical self-assembled polyimide adsorbent with high adsorption capacity, excellent selectivity and recyclability, and the applicability of fixed-bed column adsorption was developed to recycle uranium from wastewater.
Identification of the active site during CF4 hydrolytic decomposition over γ-Al2O3
CF4 hydrolytic decomposition was studied at three-coordinated Al sites on the γ-Al2O3 (110) surface.
Oxygen vacancy enhances the catalytic activity of trimetallic oxide catalysts for efficient peroxymonosulfate activation
The abundant OV could enlarge the Fe/Mn–O bond, further enhancing the degradation performance of the catalyst.
Interfacial effects in CuO/Co3O4 heterostructures enhance benzene catalytic oxidation performance
We report a facile synthesis method of CuO/Co3O4 heterostructural catalysts with remarkable benzene catalytic oxidation capability.
H2O2-free photo-Fenton system for antibiotics degradation in water via the synergism of oxygen-enriched graphitic carbon nitride polymer and nano manganese ferrite
H2O2-free photo-Fenton oxidation over OCN-nano MnFe2O4 (OMF) composites is an effective solution to degrade antibiotics in water. OMF shows high biocompatibility and high pH tolerance and can be easily recycled via magnetic separation.
Boosting heterogeneous Fenton reactions for degrading organic dyes via the photothermal effect under neutral conditions
Rapid removal of organic dyes from neutral wastewater by photothermal effect.
Constructing a brand-new advanced oxidation process system composed of MgO2 nanoparticles and MgNCN/MgO nanocomposites for organic pollutant degradation
A novel advanced oxidation process (AOP) system with high adaptability and long-term oxidation ability was firstly constructed for organic pollutant degradation via a non-radical process.
A Z-scheme NiCo2O4/S codoped 1D g-C3N4 heterojunction for solar-light-sensitive photocatalytic degradation of antibiotics in aqueous solutions exemplified by tetracycline
A NiCo2O4 nanoparticle (NP) and sulfur codoped hollow tubular g-C3N4 (NiCo–S@CN) catalyst was synthesized by a hydrothermal pyrolysis method and used to remove pharmaceuticals, exemplified by the antibiotic tetracycline (TC), from water under solar light irradiation.
Polyoxometalates-doped TiO2/Ag hybrid heterojunction: removal of multiple pollutants and mechanism investigation
A hybrid heterojunction PMV-TiO2/Agx constructed by S-scheme heterojunction and Schottky junction were prepared, which exhibits photocatalytic activity for removal of halogenated phenols, tetracycline, K2Cr2O7, MO etc.
Degradation of tetracycline over carbon nanosheet: high efficiency, mechanism and biotoxicity assessment
The pollutant Reactive Red 2 is transformed into graphene-like carbon nanosheet (GCN) by simple pyrolysis, and this GCN nanocatalyst is shown to efficiently degrade tetracycline by peroxymonosulfate activation via nonradical oxidation processes.
Fast Cr(VI) wastewater remediation on a BixOy/CdS heterostructure under simulated solar light induction
Construction of a p–n BixOy/CdS heterostructure for Cr(VI) wastewater remediation based on a II-type induced mechanism.
Fluorescent wood sponge toward selective detection and efficient removal of Cr(VI)
A novel fluorescent wood sponge was constructed combining hierarchical porous wood sponge and carbon dots via chemical bonding, which could simultaneously detect and remove hexavalent Cr(VI) in an aqueous medium.
Arsenic species delay structural ordering during green rust sulfate crystallization from ferrihydrite
Arsenic slows the structural ordering and transformation of As-bearing green rust formed from ferrihydrite under anoxic and circum-neutral pH conditions.
Highly fluorescent 2D-BCNO sheets based chemical sensor for selective detection of the explosive Dunnite and 4-nitrophenol in aqueous medium
Highly fluorescent 2D-BCNO (boron carbon oxynitride) sheets were synthesized via a new facile and simple approach for selective and sensitive detection of nitro-aromatic compounds, namely 4-nitrophenol and Dunnite, in aqueous medium.
Bimetallic FexMny catalysts derived from metal organic frameworks for efficient photocatalytic removal of quinolones without oxidant
Bimetallic magnetic FeMn catalysts have been successfully prepared by a facile impregnation method, and they exhibit efficient photocatalytic removal of a series of quinolones without oxidant under simulated light irradiation.
Inorganic nanotubes with permanent wall polarization as dual photo-reactors for wastewater treatment with simultaneous fuel production
Janus methyl imogolite nanotube (Imo-CH3) with a hydrophobic internal cavity and a hydrophilic external surface, and possessing a permanently polarized thin wall, has been shown to act as a dual photo-reactor for wastewater treatment with simultaneous fuel production.
Properties and reactivity of sulfidized nanoscale zero-valent iron prepared with different borohydride amounts
A higher NaBH4/Fe ratio was favorable for the TCE dechlorination reaction while a lower NaBH4/Fe ratio could enhance the electron selectivity.
Plasma-induced construction of defect-enriched perovskite oxides for catalytic methane combustion
An innovative plasma-induced strategy was employed to one-step prepare defect-enriched porous LaMnO3 and cerium-substituted LaMnO3 perovskite oxides with excellent performance in methane combustion.
3D structure aerogels constructed by reduced graphene oxide and hollow TiO2 spheres for efficient visible-light-driven photoreduction of U(VI) in air-equilibrated wastewater
A novel 3D structure composite aerogel was constructed by nanostructured hollow TiO2 and RGO with excellent photocatalytic reduction activity for U(VI) and reusability, evidencing the potential practical applications in environmental remediation.
Synergistic ternary porous CN–PPy–MMt nanocomposite for efficient photocatalytic metronidazole mineralization: performance, mechanism, and pathways
A novel reusable CN–PPy–MMt nanocomposite photocatalyst was produced via an in situ method for effective photocatalytic mineralization of a common antibiotic pollutant, metronidazole.
Recovery and separation of uranium in a microbial fuel cell using a titanium dioxide nanotube array cathode
Microbial fuel cell with titanium dioxide nanotube array cathode was first demonstrated as a promising approach for uranium recovery and separation from groundwater.
High degradation efficiency of sulfamethazine with the dual-reaction-center Fe–Mn–SiO2 Fenton-like nanocatalyst in a wide pH range
The development of a heterogeneous Fenton-like catalyst, possessing a high degradation efficiency in a wide pH range, is crucial for wastewater treatment.
Unconventional and facile production of a stimuli-responsive multifunctional system for simultaneous drug delivery and environmental remediation
Unconventional multifunctional nanocomposite fiber membranes were primed using Forcespinning® followed by the heat pressure method. The obtained membranes displayed simultaneously controlled drug release and removal of Pb2+ and Cd2+ from wastewater.
Oxygen vacancy-dependent photocatalytic activity of well-defined Bi2Sn2O7−x hollow nanocubes for NOx removal
Bi2Sn2O7−x with Sn-/Bi-adjacent oxygen vacancy were designed and applied for photocatalytic removal of rarefied NO. DFT and experiments provided a straightforward and clear understanding of the structure-performance relationship of oxygen vacancies.
Porous g-C3N4/TiO2 foam photocatalytic filter for treating NO indoor gas
g-C3N4/TiO2 foams were explored as photocatalytic filters for treating NO indoor gas owing to the abundant adsorption and activation sites.
One-step synthesis of carbon nitride nanobelts for the enhanced photocatalytic degradation of organic pollutants through peroxydisulfate activation
Photocatalytic mechanism of sulfamethazine degradation under a CNNB/PDS/blue-LED system, in which the enhanced photocatalytic activity might be ascribed to an external dual transmission mechanism.
Elemental iron: reduction of pertechnetate in the presence of silica and periodicity of precipitated nano-structures
Enhanced TcO4− reduction by metallic Fe0 in the presence of particulate and structural Si. Rhythmical precipitation of dissolved iron leads to formation of layered structures related to geological phenomena such as orbicular rocks and Liesegang rings.
Femtomolar detection of thiram via SERS using silver nanocubes as an efficient substrate
Silver nanocubes are demonstrated to be an efficient substrate for the detection of the fungicide thiram, at ultra-low concentrations.
Nanostructured manganese oxides exhibit facet-dependent oxidation capabilities
Nanostructured manganese oxides exhibit facet-dependent capabilities that can be exploited to improve their performance for sustainable agricultural application.
Adsorption capacity of the corrosion products of nanoscale zerovalent iron for emerging contaminants
Surface bound Fe(II) on NZVI secondary minerals would affect the fate and mobility of quinolone antibiotics in the environment.
Enhanced denitrification of contaminated groundwater by novel bimetallic catalysts supported on kaolin-derived zeolite: effects of natural dissolved inorganic and organic matter
Nitrate (NO3−) contamination has dramatically increased owing to extensive human activities, which may cause severe problems on human health and the environment.
Removal of arsenic(III) from water by 2D zeolitic imidazolate framework-67 nanosheets
Ultrathin 2D metal–organic framework nanosheets can efficiently and rapidly capture arsenate from water.
Synergistic effects of lanthanide surface adhesion and photon-upconversion for enhanced near-infrared responsive photodegradation of organic contaminants in wastewater
Upconversion nanoparticle-TiO2 catalyst with Gd3+-rich surface shows stronger binding coefficiency to the carboxyl groups, resulting in faster ring cleavage and higher mineralization efficiency of rhodamine B under NIR light irradiation.
Highly fast and selective removal of nitrate in groundwater by bimetallic catalysts supported by fly ash-derived zeolite Na-X
A novel and sustainable Pd–Sn bimetallic catalyst supported by fly ash-derived zeolite Na-X (Zeolite-XF) was developed for highly reactive and N2-selective reduction of nitrate in water.
Functionalized Fe/Ni@g-C3N4 nanostructures for enhanced trichloroethylene dechlorination and successive oxygen reduction reaction activity
Mesoporous graphitic carbon nitride (g-C3N4) with open channels and high electron transport properties is in the limelight to serve as a catalyst support for environmental and energy applications.
3D hierarchical defect-rich C@MoS2 nanosheet arrays developed on montmorillonite with enhanced performance in Pb(II) removal
A novel C@MoS2/MMT composite was prepared with 3D hierarchical superstructures for selective Pb(II) removal, with ∼95% of Pb(II) ions adsorbed in the presence of various competing ions.
Oxidation and adsorption of antimony(III) from surface water using novel Al2O3-supported Fe–Mn binary oxide nanoparticles: effectiveness, dynamic quantitative mechanisms, and life cycle analysis
Novel alumina-supported Fe–Mn binary oxide nanoparticles are green synthesized and applied for enhanced oxidation and adsorption of Sb(III) from surface water. The dynamic quantitative removal mechanisms are proposed.
A gourd-like hollow mesoporous silica particle-supported Ag/AgBr Schottky junction for highly efficient mineralization of tetracycline hydrochloride
Gourd-like hollow mesoporous silica particles with large surface area supporting the Ag/AgBr Schottky junction for a high-efficieny TTC mineralization.
Ultrafine copper nanoclusters and single sites for Fenton-like reactions with high atom utilities
Fenton-like degradation of p-hydroxybenzoic acid by ultrafine copper nanoclusters and single sites exhibited high atom utilities and a wide working pH range.
About this collection
This web collection features research articles published in Environmental Science: Nano focussed on environmental remediation and nanomaterials.