Adsorption, desorption and coadsorption behaviors of sulfamerazine, Pb(II) and benzoic acid on carbon nanotubes and nano-silica

The Science of the Total Environment
Jinlong ZhangBaoshan Xing

Abstract

In this study, nano-silica (Nano-SiO2), oxidized (O-CNTs) and graphitized multi-walled carbon nanotubes (G-CNTs) were applied as model adsorbents to study the adsorption, desorption and coadsorption behaviors of sulfamerazine (SMR), Pb(II) and benzoic acid (BA). The results showed that charge assisted H-bond (CAHB) formation played an important role in adsorption of SMR and BA on O-riched nanomaterials. The adsorption capacities of Pb(II) on CNTs were 21.46- 26.77 times higher than that on Nano-SiO2, which was mainly attributed to surface complexation and cation-π interaction. The fraction of Pb2+ adsorbed in the inside channel of CNTs should not be ignored. In coexisting systems, the absolute sorption inhibition of the SMR (ΔQeSMR) was compared with the amount of competitor adsorbed. Competitive sorption was observed as indicated by adding Pb(II) decreased adsorption of SMR on Nano-SiO2 (ΔQeSMR > 0), but hardly affected SMR adsorption on CNTs (ΔQeSMR ≈ 0) which was attributed to cation-π interaction. In addition, CAHB formed between SMR and Nano-SiO2 (ΔpKa ≈ 4.34) was weaker than that formed between SMR and O-CNTs (ΔpKa ≈ 3.15), which also consequently resulted in stronger competition of Pb(II) to SMR on Nano-SiO2 than that on...Continue Reading

References

Aug 9, 2002·Journal of the American Chemical Society·Xiaosong LiH Bernhard Schlegel
Sep 18, 2007·Journal of Colloid and Interface Science·Hongjuan WangJian Yang
Dec 7, 2007·Journal of Hazardous Materials·Di XuXiangke Wang
Nov 21, 2009·Journal of Hazardous Materials·Asha Srinivasan, Thiruvenkatachari Viraraghavan
Nov 11, 2010·Analytical and Bioanalytical Chemistry·Despo Fatta-KassinosAnastasia Nikolaou
Oct 27, 2011·Environmental Science & Technology·Marc TeixidóJordan Peccia
Jan 6, 2012·Journal of Colloid and Interface Science·Liying HaoYi Lv
May 1, 2012·The Science of the Total Environment·Di WuBaoshan Xing
May 12, 2012·Environmental Pollution·Daohui LinBaoshan Xing
Jan 15, 2014·Advances in Colloid and Interface Science·Shamik Chowdhury, Rajasekhar Balasubramanian
May 31, 2015·Journal of Hazardous Materials·Mohamed Chaker Ncibi, Mika Sillanpää
Dec 25, 2015·Small·Xiaonan XingTianyou Zhai
May 21, 2016·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·Lori A PollackArjun Srinivasan
Jul 4, 2016·Journal of Environmental Sciences (China)·Nabisab Mujawar MubarakNatesan Subramanian Jayakumar
Mar 13, 2017·Journal of Colloid and Interface Science·Valentina NairiAndrea Salis
Sep 17, 2017·The Science of the Total Environment·Kristin M BlumPeter Haglund
Oct 28, 2017·The Science of the Total Environment·Peng HuangHailong Wang
Oct 13, 2018·The Science of the Total Environment·E O'FlahertyE Cummins

❮ 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.

Related Papers

Journal of Occupational Medicine. : Official Publication of the Industrial Medical Association
J R Harnes
Intensive Care Medicine
J Geoffrey Chase, Geoffrey M Shaw
American Journal of Industrial Medicine
D BarisS H Zahm
© 2022 Meta ULC. All rights reserved