A5103091396- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- ZnO doping and properties
- Vehicle emissions and performance
- Atmospheric and Environmental Gas Dynamics
- Ga2O3 and related materials
- Air Quality Monitoring and Forecasting
- Copper-based nanomaterials and applications
- Gas Sensing Nanomaterials and Sensors
- Wind and Air Flow Studies
- Advanced Memory and Neural Computing
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanomaterials and Printing Technologies
- Fire dynamics and safety research
- Proteins in Food Systems
- Microbial bioremediation and biosurfactants
- Fire effects on ecosystems
- Hydrocarbon exploration and reservoir analysis
- Heavy metals in environment
- Laser-Ablation Synthesis of Nanoparticles
- Advanced Chemical Sensor Technologies
- Reservoir Engineering and Simulation Methods
- Meat and Animal Product Quality
- Microencapsulation and Drying Processes
- Nuclear and radioactivity studies
State Key Joint Laboratory of Environment Simulation and Pollution Control
2018-2024
Peking University
2023-2024
Tianjin University of Commerce
2021
Tsinghua University
2018-2020
Chinese Research Academy of Environmental Sciences
2016-2018
Binghamton University
2008-2013
China Source Profile Shared Service (CSPSS, www.speciate.org.cn), a new database of emission source profiles for particulate matter (PM), has been developed by researchers from Chinese Research Academy Environmental Sciences (CRAES). The first release CSPSS 1.0 consists comprehensive data that reveals the different sources in selected regions. Related categories include coal-fired boiler, industrial process, fugitive dust, vehicle exhaust emissions, biomass burning and cooking. Compositing...
This study reported the chemical compositions of PM2.5 for seven kinds China IV diesel trucks and three stage II construction equipment. Filter samples were directly collected at tailpipe with a dilution system. Twenty elements (Al, Si, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Cd, Sn, Sb, Ba Pb), water-soluble ions (WSIs) including NH4+, K+, Ca2+, Cl−, NO3− SO42−, carbonaceous species analyzed characterized. The uncertainties these also estimated. Overall, highest proportion was...
Monitoring of volatile organic compounds (VOCs) in air is crucial for understanding their atmospheric impacts and advancing emission reduction plans. This study presents an innovative integrated methodology suitable achieving semireal-time high spatiotemporal resolution three-dimensional measurements VOCs from ground to hundreds meters above ground. The integrates active AirCore sampler, custom-designed deployment unmanned aerial vehicles (UAV), a proton-transfer-reaction mass spectrometry...
Aligned Cr-doped ZnO nanorods have been successfully fabricated at 600 °C by in situ doping of Cr into using a vapor transport approach. Comprehensive structural analyses indicate that dopant occupies Zn sites and align along the [0001] direction. Photoluminescence spectra reveal unusual features peaked 401 488 nm, respectively. Magnetic measurements shown nanorod arrays exhibit ferromagnetism 10 293 K, which is likely due to defect-mediated exchange interactions. Nanomechanical studies...
Abstract This study investigated the water‐holding properties of a mixture whey protein (WP) and soy (SP) (WP–SP) their effect on ice crystal size using low‐field nuclear magnetic resonance (LF‐NMR) freezing microscopy techniques. The crystals determines perceived quality cream. Furthermore, addition plant facilitates mixed proteins limits crystals. WP SP were in different ratios (10:0–0:10), capacity was measured by LF‐NMR, observed microscopy. results showed that increased with increasing...
Cold heavy oil production with sand (CHOPS) is an extraction process for in Canada, the potential to lead higher CH4 venting than conventional sites, that have not been adequately characterized. In order quantify emissions from CHOPS activities, a focused aerial measurement campaign was conducted Canadian provinces of Alberta and Saskatchewan June 2018. Total each 10 clusters wells (containing 22–167 well sites per cluster) were derived using mass balance computation algorithm uses situ wind...
Ninety-six particulate matter (PM10) chemical source profiles for geological sources in typical cities of southwest China were acquired from Source Profile Shared Service China. Twenty-six elements (Na, Mg, Al, Si, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Sr, Cd, Sn, Sb, Ba, Be, Tl and Pb), nine ions (F−, Cl−, SO42−, NO3−, Na+, NH4+, K+, Mg2+ Ca2+), carbon-containing species (organic carbon elemental carbon) determined to construct these profiles. Individual averaged compared...
Single crystal Zn1−xVxO nanorod array aligned along the [0 0 1] growth direction has been synthesized by in situ doping of vanadium via a vapour transport method. Comprehensive structural analyses indicate substitutional V at cation positions with level 1–1.5 at%. Photoluminescence spectra show two unusual features 418 and 492 nm associated defects through doping. As-fabricated nanorods exhibit ferromagnetism 10 293 K, which are probably due to defect-mediated exchange interaction.
This study introduced a multi-scheme coupled Gaussian emission inversion method, and its application to CH4 measurements of compressed natural gas (CNG) stations in urban Beijing, China. Using mobile laboratory, the plume lateral dispersion parameters downwind multiple CNG were measured, shown increase rapidly within distance 200 m, reaching plateau at 250 m. Considering complex topography source nature stations, an ensemble four schemes was used, by comparing scheme-estimated measured...
Field effect transistors (FETs) have been fabricated on individual single-wall carbon nanotubes by inkjet printing of source and drain electrodes using palladium nanoparticles. The FETs display p-type semiconducting characteristics, whereas subsequent thermal annealing shows that both hole-doping Schottky contacts an influence the electrical transport. data show is a viable tool for facile fabrication single-tube nanoelectronics.
Forest fire research over the last several decades has improved understanding of their emissions and impacts. Nevertheless, evolution forest plumes remains poorly quantified understood. Here, a Lagrangian chemical transport model, Forward Atmospheric Stochastic Transport model coupled with Master Chemical Mechanism (FAST-MCM), been developed to simulate transformations boreal emitted hours. The results for NOx, O3, HONO, HNO3, pNO3 70 VOC species are compared airborne in-situ measurements...
Zinc oxide nanotubes (ZnO-NTs) have been successfully synthesized at ∼60°C using wet chemical method. ZnO-NTs diameters of 100–200 nm and lengths 1–2 μm. Transmission electron microscopy shows that as-synthesized NTs are single-crystal hexagonal structure grown along [0001] direction. X-ray diffraction, ultravisible absorption, photoluminescence results reveal thermal treatments low temperature <500°C in air cannot apparently improve the crystal properties ZnO.