The Advanced Oxidation of Congo Red and Nigrosine Using Dimethyl Dioxirane as an Oxidizing Agent | Chapter 8 | Progress in Chemical Science Research Vol. 9

 This work illustrates the advanced decay of Congo red (CR) and nigrosine (NI) utilizing dimethyl dioxirane as an oxidizing agent. Nigrosine dye is a combination of fake dark colors (CI 50415, Solvent dark 5) fashioned by warming a combination of aniline, nitrobenzene, and aniline hydrochloride in a copper or iron-like atmosphere.  The belongings of a number of determinants, including the pH, beginning dye concentration, and oxidizing power concentration, have happened studied. The dimethyl dioxirane was used to scrutinize the degradation of CR and NI dyes at range temperature. The belongings of pH, an oxidizing agent, and the primary dye concentration were intentional with respect to the depravity efficiency of CR and NI. Using UV-visible spectroscopy, the absorbance of CR and NI dyes was persistent both before and following in position or time degradation. Utilizing FT-IR spectroscopy, it was attainable to compare the working group that existed in the dyes before and later degradation. This work take care of also be extended to include the decolorization of modern effluents that contain dyes as important contaminants.

Author(s) Details:

S. Vinotha,
PG & Research Department of Chemistry, Holy Cross College, (Autonomous), Affiliated to Bharathidasan University, Trichy-2, India.

A. Leema Rose,
PG & Research Department of Chemistry, Holy Cross College, (Autonomous), Affiliated to Bharathidasan University, Trichy-2, India.

Please see the link here: https://stm.bookpi.org/PCSR-V9/article/view/10702

Determination of Photocatalytic Behaviour of ZnS for Dye Degradation | Chapter 7 | New Trends in Physical Science Research Vol. 6

 Due to their distinct catalytic capabilities, transition metal sulphides, in particular ZnS, have recently attracted a lot of interest. For a variety of uses, including photocatalysts, photodetectors, gas sensors, piezoelectric sensors, and ultraviolet lasers, ZnS is a promising material. These investigations have shown that ZnS nanocrystals are effective photo catalysts because of the quick production of electron-hole pairs by photo-excitation. It has been shown that a phase transition from cubic to wurtzite occurs when surfactant is added to the synthesis of ZnS. The hydrothermal method used in this work to create ZnS uses ethylene diamine as a surfactant. The produced sample's photophysical characteristics were assessed using X-ray diffractions (XRD), XPS, and UV/VIS spectra. The photoactivity of generated ZnS with surfactant was assessed using photocatalytic degradation of industrial waste under UV irradiation. Under the same circumstances, ZnS's photocatalytic activity was likewise examined without a surfactant. ZnS with surfactant has more catalytic activity than ZnS without surfactant.

Author(s) Details:

Bharati N. Patil,
Department of Applied Physics, Yeshwantrao Chavan College of Engineering, Nagpur, M.S., India.

Please see the link here: https://stm.bookpi.org/NTPSR-V6/article/view/7213

Green Synthesis of Ceria Nanoparticles Using Allium sativum Extract: Adsorption and Photo Fenton Degradation of Congo Red Dye | Chapter 05 | New Innovations in Chemistry and Biochemistry Vol. 6

 The goal of this research is to create ceria nanoparticles using a sol-gel method and aqueous Allium sativum (garlic) extract, as well as to investigate the use of the synthesised samples in Congo Red dye removal from water via adsorption and photo Fenton degradation. X-ray diffraction, Fourier Transform infrared spectroscopy, diffuse reflectance spectroscopy, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and N2 adsorption-desorption isotherm methods were used to characterise the structural, optical, and electronic properties of ceria samples prepared with different amounts of garlic extract. The results revealed that the cubic fluorite ceria nanoparticles generated are spherical, with particle sizes ranging from 10 to 40 nanometers. N2 adsorption investigations revealed that the ceria samples are mesoporous, with narrow slit-like pores. In the removal of a model pollutant Congo red, the synthesised compounds had both adsorption and photo Fenton activity. In all cases, the effect of varied reaction parameters such as duration, ceria dosage, dye solution volume, and dye concentration on % elimination was investigated. Using the best CeO2 sample, a maximum of 96 percent Congo red was removed by adsorption, and 100 percent dye was eliminated by photo Fenton degradation.

Author (S) Details

K. C. Remani
Department of Chemistry, Sree Neelakanta Government Sanskrit College Pattambi, Palakkad-679306, Kerala, India.

Zahira Yaakob
Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi 43600, Selangor, Malaysia.

N. N. Binitha
Department of Chemistry, Sree Neelakanta Government Sanskrit College Pattambi, Palakkad-679306, Kerala, India.

View Book:- https://stm.bookpi.org/NICB-V6/article/view/5298