Themed collection Nanomaterials in air

29 items
Perspective

Recent advancements and challenges in the catalytic purification of volatile organic compounds

With the development of industrialization, the emissions of volatile organic compounds (VOCs) are steadily increasing, posing a significant risk to atmospheric quality and public health.

Graphical abstract: Recent advancements and challenges in the catalytic purification of volatile organic compounds
From the themed collection: Nanomaterials in air
Critical Review

Photocatalytic NO removal: complete oxidation and reduction reaction for by-product inhibition and end-product recovery

Photocatalysis is an eco-friendly and cost-effective method to realize the purification of ppb-level NO, and the end-product (nitrate/ammonia) of the photocatalytic NO complete oxidation/reduction reaction can be further recycled.

Graphical abstract: Photocatalytic NO removal: complete oxidation and reduction reaction for by-product inhibition and end-product recovery
Communication

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.

Graphical abstract: Nano-dry-salt deposition on electret nonwoven confers anticoronaviral effect while retaining aerosol filtration performance
From the themed collection: Nanomaterials in air
Paper

Scaling-up CO2-selective graphene oxide membranes via sequential coating with gelated graphene oxide and polyethyleneimine for CO2 separation

Increased adhesion between GO layer and substrate by PDA, PEI sequential coating and CO2 affinity due to secondary PEI coating.

Graphical abstract: Scaling-up CO2-selective graphene oxide membranes via sequential coating with gelated graphene oxide and polyethyleneimine for CO2 separation
From the themed collection: Nanomaterials in air
Paper

Identifying active sites of Co3O4 catalysts for C2H2 oxidation using combined computational and experimental methods

Combined computational and experimental studies are carried out to unravel the role of active centers on C2H2 oxidation over Co3O4 catalysts.

Graphical abstract: Identifying active sites of Co3O4 catalysts for C2H2 oxidation using combined computational and experimental methods
From the themed collection: Nanomaterials in air
Paper

A new mechanism for visible light photocatalysis: generation of intraband by adsorbed organic compounds with wide-bandgap semiconductors

A novel mechanism has been revealed by the study that the adsorption of VOC molecules on the surface of semiconductors formed midgap states between the ground state of the VOCs and the conduction band of the semiconductor.

Graphical abstract: A new mechanism for visible light photocatalysis: generation of intraband by adsorbed organic compounds with wide-bandgap semiconductors
Paper

Zeolite-like ion-exchanged Cu-attapulgite catalysts for promoted selective oxidation of ammonia

Zeolite-like ion-exchanged Cu-attapulgite catalysts have been developed for selective catalytic oxidation of ammonia.

Graphical abstract: Zeolite-like ion-exchanged Cu-attapulgite catalysts for promoted selective oxidation of ammonia
From the themed collection: Nanomaterials in air
Paper

Interfacial catalytic degradation mechanism of n-hexane over polyhedral Co3O4 nanocatalysts derived from topotactic condensation of ZIF-67

A progressive transition from the L–H model to MvK model is observed, where a polyhedral Co3O4 nanocatalyst enabled by topotactic condensation of ZIF-67 is synthesized for catalytic degradation of n-hexane.

Graphical abstract: Interfacial catalytic degradation mechanism of n-hexane over polyhedral Co3O4 nanocatalysts derived from topotactic condensation of ZIF-67
From the themed collection: Nanomaterials in air
Paper

Constructing a core–shell Pt@MnOx/SiO2 catalyst for benzene catalytic combustion with excellent SO2 resistance: new insights into active sites

The construction of a core–shell Pt@MnOx/SiO2 protective structure catalyst can protect the active Pt site well from SO2 toxicity.

Graphical abstract: Constructing a core–shell Pt@MnOx/SiO2 catalyst for benzene catalytic combustion with excellent SO2 resistance: new insights into active sites
From the themed collection: Nanomaterials in air
Paper

Nylon fabric coated with a silver nanowire network covered by graphene oxide sheets serves as an electrostatic air filter for highly efficient particulate matter removal

The network of silver nanowires coated with graphene oxide sheets, which are deposited on nylon fabric, will offer valuable information pertaining to the development of an electrostatic air filter for solving air pollution.

Graphical abstract: Nylon fabric coated with a silver nanowire network covered by graphene oxide sheets serves as an electrostatic air filter for highly efficient particulate matter removal
From the themed collection: Nanomaterials in air
Paper

The heterogeneous reactions of toluene/O3/NH3 on hematite nanoparticles: the impact of light illumination on organic ammonium salt formation

The intensity of light illumination played an important role in the formation of organic ammonium salts on nano-hematite.

Graphical abstract: The heterogeneous reactions of toluene/O3/NH3 on hematite nanoparticles: the impact of light illumination on organic ammonium salt formation
From the themed collection: Nanomaterials in air
Paper

Efficient and stable CF4 decomposition over θ-Al2O3 with extraordinary resistance to HF

Regulating Al2O3 to θ phase is an effective method for enhancing the stability of CF4 decomposition.

Graphical abstract: Efficient and stable CF4 decomposition over θ-Al2O3 with extraordinary resistance to HF
From the themed collection: Nanomaterials in air
Paper

Experimental and DFT investigations on adsorption–regeneration performance and deactivation mechanism over engineered carbon fiber: role of pore structure and functional groups

Technology based on adsorption of porous carbon is a promising and cost-effective strategy for the recovery of high-value volatile organic compounds (VOCs) or removal of worthless VOCs.

Graphical abstract: Experimental and DFT investigations on adsorption–regeneration performance and deactivation mechanism over engineered carbon fiber: role of pore structure and functional groups
From the themed collection: Nanomaterials in air
Paper

Pure metallic nanofibrillar membrane for high-performance electrostatic air filtration with antimicrobial and reusable characteristics

We introduce a metallic high-efficiency particulate air (HEPA) filter based on a Cu nanofiber membrane, which grasps particulate matters physically and electrostatically. The filter also shows excellent antimicrobial property and reusability.

Graphical abstract: Pure metallic nanofibrillar membrane for high-performance electrostatic air filtration with antimicrobial and reusable characteristics
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: The role of cationic defects in boosted lattice oxygen activation during toluene total oxidation over nano-structured CoMnOx spinel
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: Catalytic oxidation of formaldehyde over a Au@Co3O4 nanocomposite catalyst enhanced by visible light: moisture indispensability and reaction mechanism
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: Catalytic activity, water resistance and stability of hematite nanomaterials in oxidative removal of polychlorinated aromatic hydrocarbons can be simultaneously enhanced through facet engineering
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: Raspberry-like TiO2 hollow spheres consisting of small nanocrystals towards efficient NO removal
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: 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)
From the themed collection: Nanomaterials in air
Open Access Paper

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.

Graphical abstract: Characterization of nano-scale mineral dust aerosols in snow by single particle inductively coupled plasma mass spectrometry
From the themed collection: Recent Open Access Articles
Paper

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- and SO2–MgO–O3.

Graphical abstract: Significant impacts of NO2 and NH3 on the sulfate formations on the surface of nano MgO particles in a smog chamber
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: Constructing active copper species in Cu-zeolites for coal-gas-SCR and elucidating the synergistic catalytic function of CuO and Cu2+ ion species
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: Gas-phase photoelectrocatalytic oxidation of volatile organic compounds using defective WO3/TiO2 nanotubes mesh
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: SO2-Tolerant catalytic reduction of NOx by confining active species in TiO2 nanotubes
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: Near-infrared light induced adsorption–desorption cycle for VOC recovery by integration of metal–organic frameworks with graphene oxide nanosheets
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: Antagonistic role of Al3+ against PM2.5-induced neurotoxicity via suppression of NADPH oxidase-triggered oxidative stress
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: A theoretical perspective on the structure and thermodynamics of secondary organic aerosols from toluene: molecular hierarchical synergistic effects
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: The photocatalytic NO-removal activity of g-C3N4 significantly enhanced by the synergistic effect of Pd0 nanoparticles and N vacancies
From the themed collection: Nanomaterials in air
Paper

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.

Graphical abstract: Identification and quantification of anthropogenic nanomaterials in urban rain and runoff using single particle-inductively coupled plasma-time of flight-mass spectrometry
From the themed collection: Nanomaterials in air
29 items

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.

Spotlight

Advertisements