Themed collection Nanomaterials in air
Perspectives on palladium-based nanomaterials: green synthesis, ecotoxicity, and risk assessment
By comprehensively analyzing and discussing the application progress, environmental behavior and ecotoxicology of palladium-based nanomaterials (Pd-NMs), guidelines are provided for the sustainable development of Pd-NMs.
Water purification: oil–water separation by nanotechnology and environmental concerns
Organic pollutants from synthetic organic compounds (SOCs) and oil spills have led to significant water contamination. This article review the progress of oil–water separation using nanotechnology and the concern of water contamination by nanomaterials.
Carcinogenic potential of high aspect ratio carbon nanomaterials
Review of recent advances in nanomaterial genotoxicity and carcinogenicity with a focus on lung carcinogenicity of high aspect ratio carbon nanotubes.
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.
Metal nanoparticles in the air: state of the art and future perspectives
Nanoparticles containing metals in their structure constitute an increasingly large group of substances present in the air.
Metal–organic framework-based nanomaterials for adsorption and photocatalytic degradation of gaseous pollutants: recent progress and challenges
Design and engineering of metal–organic frameworks for the adsorption/degradation of inorganic toxic gases, organic vapors and particulate matter.
Emerging investigator series: interactions of engineered nanomaterials with the cell plasma membrane; what have we learned from membrane models?
Various membrane models used to study nanoparticle interactions with the cell plasma membrane.
Cell type specific cytoskeleton disruption induced by engineered nanoparticles
One of the main concerns regarding nanomaterials is the cytotoxicity caused by engineered nanoparticles (NPs) after inhalation, oral or dermal routes of exposure, intravenous application, and delivery as debris from implants.
Boosting CO2 electroreduction towards C2+ products via CO* intermediate manipulation on copper-based catalysts
An overview of the strategies for boosting C2+ selectivity by manipulating CO*(CO).
A critical review on surface-modified nano-catalyst application for the photocatalytic degradation of volatile organic compounds
Surface modified nano-catalysts to improve the performance of photocatalytic degradation of VOC.
Dimension dependency of tungsten oxide for efficient gas sensing
In this review, the impact of the structure dimensionality and surface morphologies of WO3 for efficient detection of gases such as H2, NH3, H2S, CO, O3, VOCs etc. along with the influence of surface functionalization and doping has been discussed.
Recent advances in metal/ceria catalysts for air pollution control: mechanism insight and application
This work discussed the structure–activity relationship of metal/CeO2 catalysts, emphasized the theoretical calculation for catalytic mechanism insight and guiding the design of high-efficiency metal/CeO2 catalysts for air pollution control.
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.
Room-temperature formaldehyde catalytic decomposition
The necessity, basic strategies and mechanisms for HCHO room-temperature catalytic oxidation removal are summarized and discussed.
Interplay between engineered nanomaterials and microbiota
Engineered nanomaterials (ENM) have a potential to modulate microbiota and induce harmful or beneficial effects in the host. However, the causal factors of ENM-induced dysbiosis remain unknown.
Critical role of water stability in metal–organic frameworks and advanced modification strategies for the extension of their applicability
Metal–organic frameworks (MOFs) are well known for their versatile applications in diverse fields (e.g., gas adsorption, water purification, sensing, drug delivery, and catalysis).
The rise of the nanomaterial metabolite corona, and emergence of the complete corona
Metabolites present in the corona may play a key role in biological recognition of nanomaterials yet remain a much-overlooked aspect of the corona.
Status and challenges in photocatalytic nanotechnology for cleaning air polluted with volatile organic compounds: visible light utilization and catalyst deactivation
Photocatalysis that utilizes semiconductor nanoparticles is one of the promising environmental technology for air purification.
Emerging investigator series: connecting concepts of coinage metal stability across length scales
Materials with different dimensions can exhibit markedly different responses to their environment, even for the same material composition.
Environmental transformation of natural and engineered carbon nanoparticles and implications for the fate of organic contaminants
Environmental transformations of natural and engineered carbon nanoparticles significantly affect their fate, transport, and interactions with organic contaminants.
Intelligent environmental nanomaterials
We offer a comprehensive overview for the design concepts and latest progresses on the intelligent environmental nanomaterials.
Towards understanding the antibacterial activity of Ag nanoparticles: electron microscopy in the analysis of the materials-biology interface in the lung
Bacterial infections of the pulmonary system are increasing.
The yin: an adverse health perspective of nanoceria: uptake, distribution, accumulation, and mechanisms of its toxicity
This critical review identifies nanoceria's pharmacokinetics and adverse effects, discloses uncertainties and unknowns, and makes recommendations to address research gaps.
Recent advances in BiOX (X = Cl, Br and I) photocatalysts: synthesis, modification, facet effects and mechanisms
This review gives an overview of the applications of BiOX (X = Cl, Br and I) photocatalysts for environmental remediation.
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.
Ageing remarkably alters the toxicity of carbon black particles towards susceptible cells: determined by differential changes of surface oxygen groups
Ageing process remarkably alters the toxicity of carbon black particles towards susceptible cells via changing the species of their surface oxygen groups.
RGO-functionalized polymer nanofibrous membrane with exceptional surface activity and ultra-low airflow resistance for PM2.5 filtration
RGO-functionalized polymer nanofibrous membrane is developed through an electrospinning technique, which exhibits the exceptional surface activity and ultra-low airflow resistance for PM2.5 filtration.
A method for the preservation and determination of welding fume nanoparticles in exhaled breath condensate
Analysis of exhaled breath condensate (EBC) represents a non-invasive method for detecting inhaled nanoparticles (NPs) associated with various occupational and environmental exposures.
The role of cationic defects in boosted lattice oxygen activation during toluene total oxidation over nano-structured CoMnOx spinel
This study firstly revealed that toluene oxidation activity can be considerably improved by cationic defects rather than oxygen defects over nano-structured CoMnOx.
Catalytic oxidation of formaldehyde over a Au@Co3O4 nanocomposite catalyst enhanced by visible light: moisture indispensability and reaction mechanism
A Au@Co3O4 core–shell nanocomposite was prepared for the mineralization of formaldehyde under dark conditions and visible-light irradiation. The Au@Co3O4 core–shell nanocomposite has significantly promoted the photocatalytic formaldehyde oxidation.
Catalytic activity, water resistance and stability of hematite nanomaterials in oxidative removal of polychlorinated aromatic hydrocarbons can be simultaneously enhanced through facet engineering
Catalytic activity, water resistance and stability of hematite nanomaterials in oxidative removal of polychlorinated aromatic hydrocarbons can be simultaneously enhanced through facet engineering.
Raspberry-like TiO2 hollow spheres consisting of small nanocrystals towards efficient NO removal
Raspberry-like hollow spheres consisting of small TiO2 nanocrystals exhibited excellent photocatalytic activity for the removal of nitrogen oxides.
Heterogeneous reaction of toluene/NO2/O3 on α-Fe2O3 nanoparticles: the impacts of O3, light illumination, and relative humidity on the formation of N-containing organic compounds (NOC)
Light illumination can enhance the NOC formation from heterogeneous processes of toluene whereas water cannot.
Characterization of nano-scale mineral dust aerosols in snow by single particle inductively coupled plasma mass spectrometry
Mineral dust aerosols in snow were analyzed by single particle ICP-MS with machine learning to classify particle groups.
Significant impacts of NO2 and NH3 on the sulfate formations on the surface of nano MgO particles in a smog chamber
NO2 played an important positive or negative role in SO2 heterogeneous reactions, however, NH3 always exerted significant positive impacts on SO2 heterogeneous reactions in the three reaction systems of SO2–MgO-dark, SO2–MgO-hν and SO2–MgO–O3.
Constructing active copper species in Cu-zeolites for coal-gas-SCR and elucidating the synergistic catalytic function of CuO and Cu2+ ion species
Cu-ZSM-5-IE+CP exhibited excellent catalytic performance as a result of the synergistic effect between CuO and Cu2+ species.
Gas-phase photoelectrocatalytic oxidation of volatile organic compounds using defective WO3/TiO2 nanotubes mesh
A ducted GPEC reactor equipped with defective WO3/TiO2 nanotube photoelectrodes was developed for VOC removal. Applying a tiny bias voltage promoted rapid carrier transfer and inhibited the recombination of carriers trapped by the bulk OVs.
SO2-Tolerant catalytic reduction of NOx by confining active species in TiO2 nanotubes
SO2-Tolerant catalytic reduction of NOx was demonstrated by confining active species in TiO2 nanotubes.
Near-infrared light induced adsorption–desorption cycle for VOC recovery by integration of metal–organic frameworks with graphene oxide nanosheets
A photodynamic GO@MIL-101 adsorbent was presented by growing several isolated MIL-101 nanoparticles onto GO nanosheets, which was able to realize the complete desorption of VOCs within 60 min under UV-vis-NIR light irradiation.
Antagonistic role of Al3+ against PM2.5-induced neurotoxicity via suppression of NADPH oxidase-triggered oxidative stress
The relationship between PM2.5 compositions and neuron toxicity was explored and Al3+ was revealed to be antagonistic to other pollutants by decreasing the combined toxic effects.
A theoretical perspective on the structure and thermodynamics of secondary organic aerosols from toluene: molecular hierarchical synergistic effects
The molecular hierarchical synergistic effects of toluene photooxidation are elucidated to explain the formation mechanism of secondary organic aerosols.
The photocatalytic NO-removal activity of g-C3N4 significantly enhanced by the synergistic effect of Pd0 nanoparticles and N vacancies
Pd0 and N vacancy co-modified g-C3N4 displayed excellent NO-removal activity.
Identification and quantification of anthropogenic nanomaterials in urban rain and runoff using single particle-inductively coupled plasma-time of flight-mass spectrometry
Urban rain and runoff are potential sources of anthropogenic nanomaterials (engineered and incidental, ENMs and INMs) to receiving waterbodies.
Identifying the Fe3Mn3O8 phase as a superior catalyst for low-temperature catalytic oxidation of formaldehyde in air
Fe3Mn3O8 with controllable oxygen vacancies for superior catalytic oxidation of formaldehyde.
Six-week inhalation of lead oxide nanoparticles in mice affects antioxidant defense, immune response, kidneys, intestine and bones
Inhalation of PbO nanoparticles in mice has adverse effects on immune response, oxidative stress, antioxidative defense, kidneys, intestine and bones.
Traffic-derived magnetite pollution in soils along a highway on the Tibetan Plateau
Remarkably high levels of magnetite nanoparticle pollution derived from traffic in the roadside environment represent a significant health risk factor.
Exploring the entropy-driven amplification reaction and trans-cleavage activity of CRISPR-Cas12a for the development of an electrochemiluminescence biosensor for the detection of the SARS-CoV-2 RdRp gene in real samples and environmental surveillance
An ECL biosensor based on entropy-driven amplification and CRISPR-Cas12a shear for the detection of the SARS-CoV-2 RdRp gene in environmental surveillance was reported.
Interconnected N-doped MXene spherical shells for highly efficient capacitive deionization
Three-dimensional interconnected N-doped Ti3C2Tx hollow spherical shells with abundant accessible space exhibit excellent capacitive deionization performance in asymmetric electrode systems.
Photocatalytic reactive oxygen species generation activity of TiO2 improved by the modification of persistent free radicals
EPFRs can improve ˙OH generation via the h+ oxidation. This is because EPFRs construct a built-in electric field to help the migration of h+ from anatase to EPFRs. Meanwhile, EPFRs help anatase adsorb more H2O molecules, which are the source of ˙OH.
Microbial response to copper oxide nanoparticles in soils is controlled by land use rather than copper fate
Microbial response to copper oxide nanoparticles in soils is controlled by land use rather than copper fate.
Atomically dispersed Pd sites on Ti-SBA-15 for efficient catalytic combustion of typical gaseous VOCs
An atomically dispersed Pd site catalyst with 0.04 wt% Pd loading amount has been prepared for catalytic combustion of typical gaseous VOCs with high catalytic activity and stability.
Humidity reduction by using hetero-layered metal–organic framework nanosheet composites as hygroscopic materials
A super hygroscopic material with functionalities of humidity capture, in situ liquefaction, and fast water release triggered by natural sunlight, has been prepared, providing a good strategy for next-generation atmospheric water generators.
CNC/AgNP hybrids as safer-by-design biocides in paints
An efficient biocidal paint is prepared. Antibacterial activity is provided by silver nanoparticles (AgNPs) nucleated on a bio-based substrate (cellulose nanocrystals, CNCs), dispersed in an amount as low as possible in aqueous suspension.
Insights into a “seesaw effect” between reducibility and hydrophobicity induced by cobalt doping: influence on OMS-2 nanomaterials for catalytic degradation of carcinogenic benzene
We combined both theoretical and experimental evidence to demonstrate a “seesaw effect” between reducibility and hydrophobicity after introduction of cobalt into the OMS-2 structure.
Antifouling sandwich-structured electrospun nanofibrous membranes by integrating fluffy and hydrophobic layers for long-term airborne particulate matter segregation
Schematic illustration of the sandwich-structured membrane with long-term antifouling performance for personal protection.
Gold nanorod self-assembly on a quartz crystal microbalance: an enhanced mercury vapor sensor
The developed Au-NR based gas sensor showed up to ∼1.7 times higher response magnitude than its Au CTRL counterpart when exposed toward elemental mercury (Hg0) vapor. Furthermore, the newly developed sensor also showed good selectivity toward Hg0.
A highly dispersed Co–Fe bimetallic catalyst to activate peroxymonosulfate for VOC degradation in a wet scrubber
This work synthesized a highly dispersed Co–Fe bimetallic catalyst with uncalcined SBA-15 as the support, which was very efficient for PMS activation and gaseous toluene degradation in the wet scrubbing waste gas treatment system.
Significant differences of NH3-SCR performances between monoclinic and hexagonal WO3 on Ce-based catalysts
Compared with that of WO3-monoclinic (W-m), the special open structure of WO3-hexagonal (W-h) facilitates the interaction between W-h and Ce as well as improves the acidity and redox properties of Ce–W-h, reflecting its excellent NH3-SCR activity.
Ultraviolet-induced photodegradation elevated the toxicity of polystyrene nanoplastics on human lung epithelial A549 cells
UV-induced photodegradation posed greater cytotoxicity, as clearly evidenced by the impaired cell viability, stronger oxidative stress, serious membrane damage, intensive mitochondrial dysfunction, and the altered transcriptome responses.
Boosting the photocatalytic degradation of ethyl acetate by a Z-scheme Au–TiO2@NH2-UiO-66 heterojunction with ultrafine Au as an electron mediator
A Z-scheme Au–TiO2@NH2-UiO-66 photocatalyst with ultrafine Au as electron mediator was synthesized, which exhibited an exceptionally high mineralization efficiency of 85% at 94.6% ethyl acetate removal under visible light irradiation.
Particulate matter aggravates Alzheimer's disease by activating the NLRP3 inflammasome to release ASC specks
PM2.5 activated the NLRP3 inflammasome to release ASC specks and interact with the Aβ monomer to induce Aβ aggregation, further inducing AD.
Polymer-coated TiO2 nanoparticles bioaccumulate, immunoactivate and suppress pathogenic Mycobacterium chelonae clearance when intravenously injected into goldfish (Carassius auratus L.)
We examined goldfish immunotoxicological responses to intravenously injected PAA-TiO2 NPs by determining organ accumulation, depuration, tissue damage, and immune responsiveness in the kidneys, spleen, and isolated primary kidney neutrophils.
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.
Non-woven materials for cloth-based face masks inserts: relationship between material properties and sub-micron aerosol filtration
Sub-micron aerosol filtration of non-woven materials and fabric treatments were investigated. Select low-cost, readily available and easily cut non-woven materials were identified as suitable filter inserts for cloth-based masks.
Regulating oxygen vacancies in ultrathin δ-MnO2 nanosheets with superior activity for gaseous ozone decomposition
For ozone decomposition, ultrathin δ-MnO2 nanosheets were synthesized and the properties of oxygen vacancies were regulated. The as-synthesized catalyst exhibited superior activity.
Effect of oxygen vacancies and crystal symmetry on piezocatalytic properties of Bi2WO6 ferroelectric nanosheets for wastewater decontamination
There is a morphological dependence between the oxygen vacancies and the piezocatalytic activity of the two-dimensional Bi2WO6 piezocatalyst.
Self-indicating and high-capacity mesoporous aerogel-based biosorbent fabricated from cellulose and chitosan via co-dissolution and regeneration for removing formaldehyde from indoor air
Cellulose–chitosan composite aerogel fabricated via a process of co-dissolution and regeneration can adsorb formaldehyde quickly and irreversibly from air.
Intracellular trafficking of silver nanoparticles and silver ions determined their specific mitotoxicity to the zebrafish cell line
AgNP toxicity was attributed to dissolved Ag+, which was released, transported, and concentrated in the mitochondria, finally leading to exhaustion of the reserve respiratory capacity and cell death.
Preparation and characterization of multifunctional nanofibers containing metal–organic frameworks and Cu2O nanoparticles: particulate matter capture and antibacterial activity
Protection from particulate matter (PM10 and PM2.5) and microorganisms using MOFs (metal–organic frameworks) and nanoparticles used in filtration has been a major challenge.
About this collection
This web collection includes research articles published in Environmental Science: Nano featuring applications of nanoparticles in air as well as studies of the effects of nanoparticles and particulate matter on air and respiration.