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JournalISSN: 2321-807X

Journal of Advances in Chemistry 

CIRWORLD
About: Journal of Advances in Chemistry is an academic journal published by CIRWORLD. The journal publishes majorly in the area(s): Adsorption & Freundlich equation. It has an ISSN identifier of 2321-807X. It is also open access. Over the lifetime, 613 publications have been published receiving 1184 citations.


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Journal ArticleDOI
TL;DR: In this article, the best fit of the methanol leaf extract of Securinega virosa as corrosion inhibitor for the corrosion of mild steel in 2 M HCl medium was determined with the assistance of the Adejo-Ekwenchi adsorption isotherm.
Abstract: The adsorption isotherm model best fit of the methanol leaf extract of Securinega virosa as corrosion inhibitor for the corrosion of mild steel in 2 M HCl medium was determined with the assistance of the Adejo-Ekwenchi adsorption isotherm. The corrosion inhibition study was carried out using the weight loss method at the temperature range of 301 K to 313 K. The inhibition efficiency, %IE, of the extract was found to increase with increase in both concentration and temperature. On the account of, R 2 this adsorption process well fitted into Langmuir, Freundlich, Temkin isotherm, Flory-Huggins and Adejo-Ekwenchi models. However, through the parameter b of the Adejo-Ekwenchi isotherm, which clearly shows the adsorption process to be chemisorption, the best isotherm fit for the extract has been resolved to be the Langmuir isotherm and Temkin isotherm models.

19 citations

Journal ArticleDOI
TL;DR: In this paper, the Geometric-arithmetic index and Zagreb indices of fan molecular graphs, wheel molecular graph, gear fan molecular graph and their r -corona molecular graphs were determined.
Abstract: In this paper, we determine the Geometric-arithmetic indexand Zagreb indicesof fan molecular graph, wheel molecular graph, gear fan molecular graph, gear wheel molecular graph, and their r -corona molecular graphs.

18 citations

Journal ArticleDOI
TL;DR: In this paper, the mode of action of both coagulation methods is based on charge neutralization and floc formation, and the effectiveness of both methods depend on factors such as pH, co-agulation dose, coagulant type, current density, applied voltage, water and wastewater type, type of electrode, as well as size and number of electrodes.
Abstract: Chemical and electrocoagulation are widely used coagulation methods employed in water and wastewater treatment. Both coagulation processes are effective in removing a wide range of impurities which include dissolved organic matter in form of chemical and biological oxygen demand, pathogens, oils, and colloidal particles as well as heavy metals. The present review has revealed that the mode of action of both coagulation methods is based on charge neutralization and floc formation. The effectiveness of both coagulation techniques depend on factors such as pH, coagulation dose, coagulant type, current density, applied voltage, water and wastewater type, type of electrode, as well as size and number of electrodes. The commonly used chemical coagulants are inorganic coagulants based on aluminum and iron salts. However, there have been considerable successes in the development of pre-hydrolyzed inorganic coagulants which have the added advantage over traditional inorganic coagulants in that they function well over a wide range of pH and water temperatures. Electrocoagulation has been proposed as an alternative method to chemical coagulation because it is environmental friendly and cheap to operate. Nonetheless, most researchers are of the opinion that there are still some uncertainties regarding the understanding of its optimal performance and design mechanism.

16 citations

Journal ArticleDOI
TL;DR: In this article, the influence of Ni doping on structure, morphology, optical and photocatalytic properties were investigated by means of X-ray diffraction, scanning electron microscopy, UV-Vis spectrophotometer and photochemical reaction method.
Abstract: Zn 1-X Ni X O (x = 0.00, 0.02, 0.04 & 0.06 mol %) nanoparticles were prepared by simple co-precipitation method. The influences of Ni doping on structure, morphology, optical and photocatalytic properties were investigated by means of X-ray diffraction, scanning electron microscopy, UV–Vis spectrophotometer and photochemical reaction method. The obtained result shows that the prepared ZnO nanocrystals were hexagonal wurtzite structure and the average crystallite size decreases with increase of Ni doping. The increase of visible light absorption and increase of band gap were found with the increase of Ni doping concentration, which enable the sample harvest more photons to excite the electron from valence band. The photocatalytic properties of Ni doped ZnO nanocrystals shows enhanced activity that the pure ZnO nanocrystals. The photocatalytic activities were not significantly affected by the particle size and 0.04% Ni doped ZnO nanocrystals shows best catalytic activity than the other catalysts.

13 citations

Journal Article
TL;DR: In this article, areca fibers were subjected to various chemical treatments such as mercerization, permanganate treatment, benzoylation, acrylation and acetylation.
Abstract: At present natural fibers are gaining tremendous progressive importance as renewable, light weight, strong, environmentally acceptable and biodegradable reinforcement material for composite preparation as automobile industry is currently shifting to “green” outlook, as consumers are looking for environmentally friendly vehicles. An important disadvantage of natural fibers is its polar nature which in turn results in weak interfacial bonding between the fibers and the matrix. This in turn leads to the inferior properties to the natural fiber reinforced polymer composites. This defect can be remedied by chemical modification of natural fibers because this chemical modification will make the natural fibers to become less hydrophilic and thus it gives a strong compatibility between the fiber and matrix. In this research work, areca fibers were subjected to various chemical treatments such as mercerization, permanganate treatment, benzoylation, acrylation and acetylation. The structure and properties of cellulose, hemicellulose, lignin and pectin present in natural fibers have been discussed. Chemical reactions of areca fibers have been discussed and FTIR and SEM images of untreated and chemically treated areca fibers were analyzed.

12 citations

Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
20231
20211
20206
20197
201823
201799