Sonocatalytic degradation of humic acid by N-doped TiO2 nano-particle in aqueous solution

Journal of Environmental Health Science & Engineering
Hossein KamaniAmir Hossein Mahvi

Abstract

Un-doped and N-doped TiO2 nano-particles with different nitrogen contents were successfully synthesized by a simple sol-gel method, and were characterized by X-ray diffraction, field emission scanning electron microscopy, Energy dispersive X-ray analysis and UV-visible diffuse reflectance spectra techniques. Then enhancement of sonocatalytic degradation of humic acid by un-doped and N-doped TiO2 nano-particles in aqueous environment was investigated. The effects of various parameters such as initial concentration of humic acid, N-doping, and the degradation kinetics were investigated. The results of characterization techniques affirmed that the synthesis of un-doped and N-doped TiO2 nano-particles was successful. Degradation of humic acid by using different nano-particles obeyed the first-order kinetic. Among various nano-particles, N-doped TiO2 with molar doping ratio of 6 % and band gap of 2.92 eV, exhibited the highest sonocatalytic degradation with an apparent-first-order rate constant of 1.56 × 10(-2) min(-1). The high degradation rate was associated with the lower band gap energy and well-formed anatase phase. The addition of nano-catalysts could enhance the degradation efficiency of humic acid as well as N-doped TiO2 wit...Continue Reading

References

Feb 10, 2007·Ultrasonics Sonochemistry·Sumandeep Kaur, Vasundhara Singh
Jun 19, 2009·Ultrasonics Sonochemistry·Hossein SalavatiIraj Mohammadpoor-Baltork
Jul 26, 2012·PloS One·Amir Hossein MahviMahmood Alimohammadi
Feb 7, 2014·Journal of Environmental Health Science & Engineering·Allahbakhsh JavidNoshin Rastkari
Apr 17, 2014·Journal of Environmental Health Science & Engineering·Reza RezaeeAmir H Mahvi
Aug 12, 2014·Journal of Environmental Health Science & Engineering·Saeedeh Hemmati BorjiAmir Hossein Javadi
Feb 5, 2015·Journal of Environmental Health Science & Engineering·Vali AlipourAlimorad Rashidi
Apr 25, 2015·Journal of Environmental Health Science & Engineering·Mahdi FarzadkiaMehdi Shirzad-Siboni

❮ Previous
Next ❯

Citations

May 27, 2016·Journal of Environmental Health Science & Engineering·L D NaiduPieter Stroeve
Dec 14, 2017·Journal of Environmental Health Science & Engineering·Mohammad Ali Zazouli, Laleh R Kalankesh

❮ Previous
Next ❯

Methods Mentioned

BETA
X-ray
scanning electron microscopy

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.