Tubular carbon nanotube-based gas diffusion electrode removes persistent organic pollutants by a cyclic adsorption - Electro-Fenton process

Journal of Hazardous Materials
Hannah RothMatthias Wessling

Abstract

We report a novel tubular electrochemical cell which is operated in a cyclic adsorption - electro-Fenton process and by this means overcomes the drawbacks of the traditional electro-Fenton process. A microtube made only of multi-walled carbon nanotubes (MWCNT) functions as a gas diffusion electrode (GDE) and highly porous adsorber. In the process, the pollutants were first removed electroless from the wastewater by adsorption on the MWCNT-GDE. Subsequently, the pollutants are electrochemically degraded in a defined volume of electrolyte solution using the electro-Fenton process. Oxygen was supplied into the lumen of the saturated microtubular GDE which was surrounded by a cylindrical anode made of Ti-felt coated with Pt/IrO2 catalysts. For the proof of concept the model pollutant Acid Red 14 (AR14), an azo dye, was used. The decomposition of AR14 was studied at different applied current densities and initial concentrations of ferrous iron in the electrolyte solution. At optimal conditions, complete regeneration of the adsorption capacity of the MWCNT-GDE, complete decolorization and TOC and COD removal rates of 50% and 70% were achieved, respectively. The MWCNT-GDE is regenerated and again available for adsorption. This approac...Continue Reading

References

Jul 30, 2002·Environmental Science & Technology·Birame BoyeEnric Brillas
Jun 16, 2004·Environment International·Esther ForgacsGyula Oros
Nov 11, 2008·Water Research·Marco Panizza, Giacomo Cerisola
Oct 13, 2009·The Science of the Total Environment·Venkata K K UpadhyayulaGeoffrey B Smith
Jun 20, 2012·Environmental Science and Pollution Research International·Arjunan Babuponnusami, Karuppan Muthukumar
Jan 23, 2013·Environmental Science and Pollution Research International·Puthiya Veetil NidheeshSrikrishnaperumal Thanga Ramesh
Jun 21, 2013·Environmental Science & Technology·Jennifer A BañuelosLuis A Godínez
May 27, 2014·Journal of Hazardous Materials·Alok D Bokare, Wonyong Choi
Jan 6, 2015·Physical Chemistry Chemical Physics : PCCP·Kurt KuglerMatthias Wessling

❮ Previous
Next ❯

Citations

Feb 20, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Mohammad Reza SamarghandiSohrab Salehi
Nov 12, 2020·Environmental Science and Pollution Research International·Izabelle C Da Costa SoaresIgnasi Sirés
Nov 3, 2020·The Science of the Total Environment·Rebecca V McQuillanKathryn A Mumford
Aug 19, 2021·Proceedings of the National Academy of Sciences of the United States of America·Jiabei WangChuang Peng
Dec 19, 2018·Environmental Science & Technology·Benedikt M AumeierMatthias Wessling

❮ 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 Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
Nasser M Abu Ghalwa, Farid R Zaggout
Water Environment Research : a Research Publication of the Water Environment Federation
Dusmant MaharanaJianghong Shi
© 2022 Meta ULC. All rights reserved