Emissions of air pollutants from indoor charcoal barbecue

Huang, Haibo; Lee, Whei‐May Grace; Wu, F.S

doi:10.1016/j.jhazmat.2015.09.048

Cited by 57 publications

(44 citation statements)

References 27 publications

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“…Air pollution impacts the health of the global environment and the array of species that live within it, and new techniques are sought to reduce harmful airborne emissions. Highly efficient oxidation and reduction during photocatalysis are considered to be an effective method to degrade inorganic and organic air pollutants to improve air quality [123][124][125]. Similarly, TiO 2 is considered the most promising photocatalyst.…”

Section: Degradation Of Air Pollutantsmentioning

confidence: 99%

Titanium Dioxide: From Engineering to Applications

et al. 2019

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Titanium dioxide (TiO2) nanomaterials have garnered extensive scientific interest since 1972 and have been widely used in many areas, such as sustainable energy generation and the removal of environmental pollutants. Although TiO2 possesses the desired performance in utilizing ultraviolet light, its overall solar activity is still very limited because of a wide bandgap (3.0–3.2 eV) that cannot make use of visible light or light of longer wavelength. This phenomenon is a deficiency for TiO2 with respect to its potential application in visible light photocatalysis and photoelectrochemical devices, as well as photovoltaics and sensors. The high overpotential, sluggish migration, and rapid recombination of photogenerated electron/hole pairs are crucial factors that restrict further application of TiO2. Recently, a broad range of research efforts has been devoted to enhancing the optical and electrical properties of TiO2, resulting in improved photocatalytic activity. This review mainly outlines state-of-the-art modification strategies in optimizing the photocatalytic performance of TiO2, including the introduction of intrinsic defects and foreign species into the TiO2 lattice, morphology and crystal facet control, and the development of unique mesocrystal structures. The band structures, electronic properties, and chemical features of the modified TiO2 nanomaterials are clarified in detail along with details regarding their photocatalytic performance and various applications.

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Section: Degradation Of Air Pollutantsmentioning

confidence: 99%

Titanium Dioxide: From Engineering to Applications

et al. 2019

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“…The former mainly comes from combustion and dust 2 whereas the latter involves a series of chemical processes 3 . Accordingly, the emission from residential sector can be considered as primary emission because household heating is a major source of combustion in northern China in winter 4 , and burning of biomass either for cooking or for agriculture purpose also constitutes a major source of combustion in rural area in China 5 6 7 . Indeed, regional biomass burning emission may be sometimes an important contributor in both urban and rural areas in China 8 9 .…”

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confidence: 99%

Network Analysis of Fine Particulate Matter (PM2.5) Emissions in China

Yan

2016

Sci Rep

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Specification of PM2.5 spatial and temporal characteristics is important for understanding PM2.5 adverse effects and policymaking. We applied network analysis to studying the dataset MIX, which contains PM2.5 emissions recorded from 2168 monitoring stations in China in 2008 and 2010. The results showed that for PM2.5 emissions from industrial sector 8 clusters were found in 2008 but they merged together into a huge cluster in 2010, suggesting that industrial sector underwent an integrating process. For PM2.5 emissions from electricity generation sector, strong locality of clusters was revealed, implying that each region had its own electricity generation system. For PM2.5 emissions from residential sector, the same pattern of 10 clusters was uncovered in both years, implicating the household energy consumption unchanged from 2008 to 2010. For PM2.5 emissions from transportation sector, the same pattern of 5 clusters with many connections in-between was unraveled, indicating the high-speed development of transportation nationalwidely. Except for the known elements, mercury (Hg) surfaced as an element for particle nucleation. To our knowledge, this is the first network study in this field.

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“…As it burns, charcoal releases several by-products that are dependent on its properties and the prevailing conditions. Complete combustion yields mainly carbon dioxide (CO2) and moisture while incomplete combustion yields carbon monoxide (CO), carbon dioxide, particulate matter, volatile organic compounds, carbonyls among others [1]. Charcoal usage has led to a lot of unintentional CO poisoning resulting in the death of many people with countless near misses and chronic injuries [2], [3], [4], [5].…”

Section: Graphical Abstract 1 Introductionmentioning

confidence: 99%

“…Schematic of the experimental setup for CO quantification2.4 Percentage residual COThe residual amount of carbon monoxide were computed from equation(1) below; , CO0, and COc are the residual CO at any temperature T, carbon monoxide from untreated charcoal and carbon monoxide from catalyst treated charcoal.3 Results and DiscussionThis study reports charcoal made safer from CO released by impregnating it with Cu-Mn and Pd-Sn based catalysts. The decomposition profiles of catalysts under air have been reported using thermogravimetric analysis.…”

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confidence: 96%

Mechanical impregnation of Pd-Sn/alumina and Cu-Mn/graphite on charcoal to minimise carbon monoxide emissions

Nyombi

Williams

Wessling

2019

Chemical Physics Letters

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This study investigated how to minimize carbon monoxide (CO) emissions from charcoal by impregnating with Pd-Sn/alumina and Cu-Mn/graphite. Samples were heated isothermally with continuous monitoring of residual CO using electrochemical and infra-red sensors. With 0.2wt% Pd-Sn/alumina, 26.9% and 44.4% were recorded as lowest and highest residual CO. On the other hand, when 2wt% Cu-Mn/graphite was used, 15.6%, and 25.3% were observed as lowest and highest residual CO. The activity of the catalysts decreased with temperature and increased with catalyst loading. This method could be used on briquettes, wood boiler chips and other solid carbonaceous materials to minimise CO emissions.

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Emissions of air pollutants from indoor charcoal barbecue

Cited by 57 publications

References 27 publications

Titanium Dioxide: From Engineering to Applications

Titanium Dioxide: From Engineering to Applications

Network Analysis of Fine Particulate Matter (PM2.5) Emissions in China

Mechanical impregnation of Pd-Sn/alumina and Cu-Mn/graphite on charcoal to minimise carbon monoxide emissions

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