Deposition and transport of functionalized carbon nanotubes in water-saturated sand columns

Journal of Hazardous Materials
Yuan TianLiuyan Yang

Abstract

Knowledge of the fate and transport of functionalized carbon nanotubes (CNTs) in porous media is crucial to understand their environmental impacts. In this study, laboratory column and modeling experiments were conducted to mechanistically compare the retention and transport of two types of functionalized CNTs (i.e., single-walled nanotubes and multi-walled nanotubes) in acid-cleaned, baked, and natural sand under unfavorable conditions. The CNTs were highly mobile in the acid-cleaned sand columns but showed little transport in the both natural and baked sand columns. In addition, the retention of the CNTs in the both baked and natural sand was strong and almost irreversible even after reverse, high-velocity, or surfactant flow flushing. Both experimental and modeling results showed that pH is one of the factors dominating CNT retention and transport in natural and baked sand. Retention of the functionalized CNTs in the natural and baked sand columns reduced dramatically when the system pH increased. Our results suggest that the retention and transport of the functionalized CNTs in natural sand porous media were mainly controlled by strong surface deposition through the electrostatic and/or hydrogen-bonding attractions between ...Continue Reading

References

Sep 3, 2004·Journal of Colloid and Interface Science·M MeyerR Garrigos
Sep 24, 2004·Environmental Science & Technology·Hélène F Lecoanet, Mark R Wiesner
Oct 28, 2004·Environmental Science & Technology·Hélène F LecoanetMark R Wiesner
Jan 15, 2005·Toxicology Letters·Nancy A Monteiro-RiviereJim E Riviere
Jul 29, 2005·Toxicological Sciences : an Official Journal of the Society of Toxicology·Karluss Thomas, Philip Sayre
Aug 30, 2005·Toxicology Letters·Massimo BottiniTomas Mustelin
Dec 6, 2005·Advances in Colloid and Interface Science·Tushar Kanti Sen, Kartic C Khilar
Feb 21, 2008·Environmental Science & Technology·Jennifer SmithM Todd Walter
Mar 8, 2008·Environmental Science & Technology·Shangping XuJames E Saiers
Sep 5, 2008·Environmental Science & Technology·Meagan S Mauter, Menachem Elimelech
Nov 27, 2008·Environmental Science & Technology·Kun YangLizhong Zhu
Dec 17, 2008·Environmental Science & Technology·Deb P JaisiMenachem Elimelech
Dec 17, 2008·Environmental Toxicology and Chemistry·Alan J KennedyCharles A Weiss
Jan 30, 2009·Environmental Science & Technology·Bo Pan, Baoshan Xing
Nov 21, 2009·Environmental Science & Technology·Xueying LiuC Lindsay Anderson
Dec 17, 2009·Environmental Science & Technology·Deb P Jaisi, Menachem Elimelech
Sep 4, 2010·Environmental Science & Technology·Tao Cheng, James E Saiers
Sep 28, 2010·Journal of Colloid and Interface Science·Marek Kosmulski
Nov 9, 2010·Journal of Contaminant Hydrology·Saeed TorkzabanTetsu K Tokunaga
Dec 28, 2010·Water Research·Alexis A Porubcan, Shangping Xu

❮ Previous
Next ❯

Citations

Jul 3, 2013·Environmental Science & Technology·Iftheker A KhanNavid B Saleh
Feb 18, 2016·Journal of Hazardous Materials·Chang Min ParkYeomin Yoon
Jun 19, 2013·Environmental Pollution·Daniela KaselErwin Klumpp
Jul 31, 2013·Ecotoxicology and Environmental Safety·Shibin LiJaclyn E Cañas-Carrell
Nov 28, 2013·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Lei WuRafael Muñoz-Carpena
Jun 10, 2016·Journal of Nanobiotechnology·Alexander GogosThomas D Bucheli
Jul 19, 2016·Journal of Hazardous Materials·Mei WangDeshan Tang
Apr 12, 2013·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Yuan TianHui Li
Jul 12, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Carolina RodríguezEduardo Leiva
Feb 13, 2021·Environmental Science and Pollution Research International·Miaomiao TanChengliang Li

❮ 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.