Fabrication highly dispersed Fe3O4 nanoparticles on carbon nanotubes and its application as a mimetic enzyme to degrade Orange II

Environmental Technology
Jingheng DengJiaxi Li

Abstract

Fe3O4 nanoparticles were grown in situ on carbon nanotubes (CNTs) by a solvothermal method. The Fe3O4/CNTs composites were characterised by the Brunauer-Emmett-Teller method and transmission electron microscopy. The results indicated that the Fe3O4 nanoparticles were uniformly deposited on CNTs, and the average diameter was approximately 7.0 nm. The Fe3O4/CNTs were applied as an enzyme mimetic to decompose Orange II, and the decomposing conditions were optimised. At 500 mg L(-1) of Fe3O4/CNTs in the presence of 15.0 mmol L(-1) of H2O2, at 30°C, it degraded 94.0% of Orange II (0.25 mmol L(-1), pH = 3.5), showing higher catalytic activity than pure Fe3O4 nanoparticles. The high activity was attributed to the uniform Fe3O4 nanoparticles growing on the side walls of the CNTs and the synergetic effect between Fe3O4 and CNTs. The Fe3O4/CNTs maintained their activity at temperatures as high as 65°C. The Fe3O4/CNTs presented high reusability and stability even after eight uses. These data proved that the Fe3O4/CNTs-catalysed degradation is a promising technique for wastewater treatment. Fe3O4 nanoparticles were grown in situ on carbon nanotubes (CNTs) by a solvothermal method. The Fe3O4/CNTs was applied as a mimetic enzyme to decompose...Continue Reading

References

Jul 15, 1993·European Journal of Biochemistry·H Sies
Feb 2, 2000·Applied and Environmental Microbiology·C Johannes, A Majcherczyk
Mar 10, 2000·Applied Microbiology and Biotechnology·M A UllahC S Evans
Dec 17, 2002·Current Opinion in Biotechnology·Adrie J J StraathofAndreas Schmid
Apr 28, 2004·Chemosphere·Young Soo Keum, Qing X Li
Jul 21, 2006·The Journal of Physical Chemistry. B·Miguel A Correa-DuarteRodolfo Diaz
May 19, 2007·Journal of the American Chemical Society·Wei ChenXinhe Bao
Jul 26, 2008·Nature Nanotechnology·Lizeng GaoXiyun Yan
Jan 9, 2009·Angewandte Chemie·Atul AsatiJ Manuel Perez
Mar 10, 2009·Chemistry : a European Journal·Zhihui DaiHuangxian Ju
May 13, 2011·Chemical Communications : Chem Comm·Wenbing ShiYuming Huang
Jul 23, 2011·Journal of Nanoscience and Nanotechnology·Humphrey H P YiuJon Dobson
Nov 25, 2011·Enzyme and Microbial Technology·Tukayi KudangaStephanie Burton
Jan 31, 2012·Chemical Communications : Chem Comm·Jianshuai MuLi Zhang
Mar 21, 2012·Chemical Communications : Chem Comm·Prathik RoyHuan-Tsung Chang

❮ Previous
Next ❯

Citations

Mar 6, 2018·Angewandte Chemie·Hanjun SunXiaogang Qu
Jan 13, 2021·Sensors·Elicia L S WongEdith Chow

❮ Previous
Next ❯

Methods Mentioned

BETA
transmission electron microscopy
X-ray
electron paramagnetic resonance
ESR

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.