Early evaluation of potential environmental impacts of carbon nanotube synthesis by chemical vapor deposition

Environmental Science & Technology
Desirée L PlataPhilip M Gschwend

Abstract

The carbon nanotube (CNT) industry is expanding rapidly, yet little is known about the potential environmental impacts of CNT manufacture. Here, we evaluate the effluent composition of a representative multiwalled CNT synthesis by catalytic chemical vapor deposition (CVD) in order to provide data needed to design strategies for mitigating any unacceptable emissions. During thermal pretreatment of the reactant gases (ethene and H(2)), we found over 45 side-products were formed, including methane, volatile organic compounds (VOCs), and polycyclic aromatic hydrocarbons (PAHs). This finding suggests several environmental concerns with the existing process, including potential discharges of the potent greenhouse gas, methane (up to 1.7%), and toxic compounds such as benzene and 1,3-butadiene (up to 36000 ppmv). Extrapolating these laboratory-scale data to future industrial CNT production, we estimate that (1) contributions of atmospheric methane will be negligible compared to other existing sources and (2) VOC and PAH emissions may become important on local scales but will be small when compared to national industrial sources. As a first step toward reducing such unwanted emissions, we used continuous in situ measures of CNT length ...Continue Reading

References

Dec 6, 2005·Environmental Science & Technology·Christine Ogilvie RobichaudMark R Wiesner
Jul 21, 2006·The Journal of Physical Chemistry. B·Gyula EresDouglas H Lowndes
Nov 17, 2006·Nature·Andrew D MaynardDavid B Warheit
Apr 6, 2007·Small·Anastasios John HartAlexander H Slocum

❮ Previous
Next ❯

Citations

Jun 15, 2011·Environmental Science & Technology·Zhenyu WangBaoshan Xing
Jan 31, 2012·Environmental Science & Technology·Desirée L PlataPhilip M Gschwend
Feb 3, 2012·Environmental Science & Technology·Matthew J EckelmanMenachem Elimelech
Sep 29, 2012·Environmental Science & Technology·Indranil ChowdhurySharon L Walker
May 20, 2011·ACS Nano·Roberto Guzmán de VilloriaBrian L Wardle
Oct 26, 2011·ACS Nano·Mostafa BedewyA John Hart
Mar 25, 2011·Journal of Hazardous Materials·Diego StéfaniOswaldo L Alves
May 23, 2015·Scientific Reports·Erik S PolsenA John Hart
Mar 1, 2016·Chemical Society Reviews·Zhongying WangRobert Hurt
Mar 11, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Hui FengJianrong Chen
Oct 8, 2020·Membranes·Jeong Hoon LeeHee-Deung Park
May 15, 2021·Nature Nanotechnology·Desirée L Plata, Nina Z Janković
Dec 18, 2013·Environmental Science & Technology·Venkata K K UpadhyayulaMichael A Gonzalez
Feb 22, 2011·Environmental Science & Technology·Annick AnctilBrian J Landi
Aug 5, 2014·Analytical Chemistry·Seyyed Shayan MeysamiNicole Grobert
Sep 5, 2014·Environmental Science & Technology·Leanne M GilbertsonMatthew J Eckelman
Aug 19, 2020·Environmental Science & Technology·Brian D DrolletteDesiree L Plata
Aug 28, 2021·Nanomaterials·Matthew HustonAnisha Gupta

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.