scholarly journals Volatile Organic Compounds (VOCs) Removal from Indoor Air by Heterostructures/Composites/Doped Photocatalysts: A Mini-Review

Nanomaterials ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1965
Author(s):  
Alexandru Enesca ◽  
Cristina Cazan
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Indoor Air ◽  
Active Sites ◽  
Building Materials ◽  
Interfacial Region ◽  
Volatile Organic ◽  
Beneficial Impact ◽  
Light Absorbance ◽  
The Impact

The impact of volatile organic compounds (VOCs) on indoor air quality and, furthermore, on human health is still a subject of research investigations considering the large increase in forms of cancer and related diseases. VOCs can be 10 times higher in indoor air concentrations then that of the outdoors, as a consequence of emissions from electronics, building materials and consumer goods. Direct transformation of VOCs in mineralization products seems to be an alternative to reduce indoor air contaminants. The advantage of photocatalysis implementation in indoor air treatment is given by the absence of additional chemicals (such as H2O2) and waste. The present mini-review presents a comparative study on VOCs photocatalytic removal considering the photocatalyst composition, morphology and specific surface. The sheet-like morphology seems to provide a higher number of active sites which may contribute to oxidative reactions. The insertion of materials able to increase light absorbance or to mediate the charge carrier’s transport will have a beneficial impact on the overall photocatalytic efficiency. Additionally, surface chemistry must be considered when developing photocatalysts for certain gas pollutants in order to favor molecule absorbance in the interfacial region. An energy consumption perspective is given based on the light intensity and irradiation period.

Modelling of Emission and Re-emission of Volatile Organic Compounds from Building Materials with Indoor Air Applications

Indoor Air ◽  
1993 ◽  
Vol 3 (1) ◽  
pp. 2-11 ◽  
Author(s):  
Ivars Neretnieks ◽  
Jan Christiansson ◽  
Leonardo Romero ◽  
Lars Dagerholt ◽  
Ji-Wei Yu
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Indoor Air ◽  
Building Materials ◽  
Volatile Organic

Relationship Between Building Materials, Structure and Volatile Organic Compounds Indoor Air

Epidemiology ◽  
2011 ◽  
Vol 22 ◽  
pp. S41
Author(s):  
Masamichi Hanazato ◽  
Emiko Todaka ◽  
Hiroko Nakaoka ◽  
Chisato Mori
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Indoor Air ◽  
Building Materials ◽  
Volatile Organic

Research of the Distribution of Volatile Organic Compounds (VOC) in Print Shops in Xi’an

2012 ◽  
Vol 209-211 ◽  
pp. 1560-1565
Author(s):  
Shu Yun Wu ◽  
Zeng Feng Yan ◽  
Jun Gang Dong ◽  
Huan Huan Liu
Keyword(s):  
Volatile Organic Compounds ◽  
Indoor Air Quality ◽  
Organic Compounds ◽  
Indoor Air ◽  
Air Pollutants ◽  
Building Materials ◽  
Volatile Organic ◽  
Print Shop ◽  
Indoor Air Pollutants

Volatile organic compounds (VOCs) are major constituents of the indoor air pollutants. The indoor air quality has caused wide concern for VOCs may affect human health in many ways. The VOCs in general rooms volatilize from building materials, furniture and so on. In print shops the print equipment and materials may produce a large amount of VOCs that may affect the health of the long-term print shop workers. The author has measured the VOC content and the air indexes in a seventy square-meter print shop in Xi’an with comprehensive functions, then, evaluated the pollution and proposed the preventions of the VOC content in print shops.

scholarly journals Volatile Organic Compounds (VOCs) from Wood and Wood-Based Panels: Methods for Evaluation, Potential Health Risks, and Mitigation

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2289 ◽  
Author(s):  
Tereza Adamová ◽  
Jaromír Hradecký ◽  
Miloš Pánek
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Indoor Air ◽  
Sick Building Syndrome ◽  
Construction Materials ◽  
Point Of View ◽  
Analytical Determination ◽  
Potential Health ◽  
Volatile Organic ◽  
The Impact

Volatile organic compounds (VOCs) are contained in various construction materials and interior equipment. Their higher concentrations in the indoor air are associated with negative effects on human health and are disputed in terms of health risk, since people spend a considerable part of their lifetime indoors. Therefore, the presence of VOCs in indoor air is a case of concern regarding sick building syndrome (SBS). From a historical point of view, wood and wood-based panels represent a widely used material. Nevertheless, wood appears to be nowadays a product and a material of a sustainable future. Depending on wood extractives’ composition and an abundance of diverse wood species, different profiles of volatiles are emitted. In case of wood-based panels, the impact of adhesives and additives that are essentially applied aiming to adjust the panels’ properties is even enriching this cocktail of chemicals. This paper comprises the issue of VOCs emitted from wood and wood-based panels. The most abundant VOCs were summarized. The options of VOCs for analytical determination from these matrixes are described with their benefits and limitations.

scholarly journals Interior surface materials as sources of indoor hygiene defects

2018 ◽  
Vol 146 ◽  
pp. 03001
Author(s):  
Ingrid Juhasova Senitkova
Keyword(s):  
Air Quality ◽  
Volatile Organic Compounds ◽  
Indoor Air Quality ◽  
Organic Compounds ◽  
Indoor Air ◽  
Building Design ◽  
Interior Surface ◽  
Volatile Organic ◽  
Surface Materials ◽  
The Impact

The building design and material selection has to respect the environmental requirements of indoor air quality and indoor hygiene parameters. As the first stage of building design is the most important for final indoor air quality more and more by clear constructional architecture the benefit of environmental safety, good indoor air quality for health and productivity are dominant. Nowadays the interior surface materials have received greatest attention as sources of indoor air pollution. The major pollutants in indoor air are volatile organic compounds emitted from materials and building products. Volatile organic compounds, or VOCs, are among the most complex and troubling indoor air pollutants. Manufactured and synthesized products often release large quantities of VOCs, some of the compounds they release, such as benzene, styrene, formaldehyde, and toluene, may be irritating, toxic, or even carcinogenic. VOCs emitted can become attached to other surfaces in the space, especially fabrics, and then be re-emitted over time. The impact of interior surface materials on air quality and indoor hygiene is discussed within the paper. The building design concerning to heath of occupants and hygienic performance regime can be realized only by interdisciplinary team of professionals respecting the environmental building and indoor design.

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