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All published articles 1056

Spatial and Temporal Variations in Physicochemical Properties of an Aquatic Environment

O. C. Eze, B. W. Tukura, B. O. Atolaiye & O. D. Opaluwa · Chemical Science International Journal · 2018

The study was carried out to evaluate spatial and temporal variations in the levels of some physicochemical parameters in water and sediments from Mpape River, Abuja, Nigeria. The samples were collected along the river bank in dry and rainy seasons from five (5) locations and wer...

Open access Research Article 10.9734/CSJI/2018/40942

Comparative Analysis of Metal Levels in Clarias gariepinus and Water from River Benue and Commercial Fish Ponds in Makurdi

S. Targuma, I. S. Eneji & R. Sha’Ato · Chemical Science International Journal · 2018

Aims: The present study assessed toxic metals content in the water, feeds and fish organs (liver, gills, and kidney) of Clarias gariepinus from River Benue and selected fish ponds within Makurdi metropolis of Benue State. Place and Duration of Study: Sample: A total of eighteen (...

Open access Research Article 10.9734/CSJI/2018/41806

Diffusion-Chemisorption and Pseudo-Second Order Kinetic Models for Heavy Metal Removal from Aqueous Solutions Using Modified and Unmodified Oil Palm Fruit Fibre

Anthony Obike, Jude Igwe, Chigbundu Emeruwa, Kelechi Uwakwe & Christopher Aghalibe · Chemical Science International Journal · 2018

Aims: To investigate the kinetics of Cu(II), Pb(II), Ni(II) and Sn(II) absorption from aqueous solution using modified and unmodified oil palm fruit fibre using diffusion-chemisorption and pseudo-second order kinetic models. Study Design: The use of oil palm fruit fibre as absorb...

Open access Research Article 10.9734/CSJI/2018/41459

The Study of Chemical, Mechanical, Thermal, and Morphological Properties of Poly Lactic Acid-nano Hydroxyapatite Composite Scaffold

Md Ruhul Amin Foisal, Ajoy Kumer, Umma Taslima Nasrin, Mohammad Ismail & Mohammad Saiful Alam · Chemical Science International Journal · 2018

Hydroxyapatite (HAp) ceramics have been recognized as substitute material in bone due to their chemical and biological similarity to human bone tissue. Nano HAp powders were synthesized by wet precipitation technique using aqueous suspension of 0.5 M calcium hydroxide [Ca(OH)2] w...

Open access Research Article 10.9734/CSJI/2018/41184

Effect of Rhizoclonium grande Saturated Fatty Acid Ethyl Esters on Physicochemical and Fuel Properties of Jatropha curcas Biofuel

J. M. Kahindo, C. Sumesh, R. Musau, J. O. Odalo & T. Thoruwa · Chemical Science International Journal · 2018

Aims: The effect of Rhizoclonium grande saturated fatty acid ethyl esters on physicochemical and fuel properties of Jatropha curcas biofuel was assessed. Study Design: Probability and purposeful sampling methods were employed. Randomized block design comprising of three blocks, R...

Open access Research Article 10.9734/CSJI/2018/41568

Isotherm and Kinetic Studies on the Adsorptive Removal of Metanil Yellow and Neutral Red Dyes Using Copper Oxide Nanoparticles

Muhammad Adamu Ibrahim & Muhammad Bashir Ibrahim · Chemical Science International Journal · 2018

This study investigated the adsorption property of copper oxide nanoparticles (CuO-NPs) for the removal of Metanil Yellow (MY) and Neutral Red (NR). The influence of variables such as contact time, initial concentration and pH for the adsorption process were investigated. The per...

Open access Research Article 10.9734/CSJI/2018/41169

Chemical Reactivity Theory Applied to the Calculation of the Local Reactivity Descriptors of a Colored Maillard Reaction Product

Juan Frau & Daniel Glossman-Mitnik · Chemical Science International Journal · 2018

This computational study assessed ten density functionals that include CAM-B3LYP, LC-ωPBE, M11, M11L, MN12L, MN12SX, N12, N12SX, ωB97X, and ωB97XD related to the Def2TZVP basis set together with the SMD solvation model. These are assessed in calculating the molecular properties a...

Open access Research Article 10.9734/CSJI/2018/41452

Theoretical Study of the Chemical Reactivity of Five Schiff Bases Derived From Dapsone by the DFT Method

Jean Stéphane N’dri, Mamadou Guy-Richard Koné, Charles Guillaume Kodjo, Ahmont Landry Claude kablan, Sopi Thomas Affi, Lamoussa Ouattara & Nahossé Ziao · Chemical Science International Journal · 2018

This theoretical study of chemical reactivity was conducted using the method of the Density Functional Theory (DFT), with B3LYP/6-311G (d, p) as calculation level. A series of five (05) Schiff bases derived from 4.4 '-diaminodiphenylsulfone (Dapsone) was concerned and allowed to...

Open access Research Article 10.9734/CSJI/2018/41427

Synthesis and Encapsulation of bis-eugenol in a Mesoporous Solid Material: Enhancement of the Antioxidant Activity of a Natural Compound from Clove Oil

Vanina A. Guntero, Cristián A. Ferretti, Pedro M. Mancini & María N. Kneeteman · Chemical Science International Journal · 2018

In the present work, microwave extraction conditions to recover high eugenol content in the crude extract from clove were investigated. The effect of factors like temperature, stirring, time, liquid: Solid ratio and solutions of solvent were evaluated with Taguchi’s method. The e...

Open access Research Article 10.9734/CSJI/2018/41105

Simultaneous Determination of Pb(II), Cu(II) and Ni(II) with MEDTA by Ultraviolet and Visible Derivative Spectrophotometry

M. C. Fernández-Feal, J. M. Castro-Romero & J. M. Fernández-Solís · Chemical Science International Journal · 2018

Aims: Since the end of the nineteenth century, when Werner proposed his theory of co-ordination, the study of metallic compounds has continued to attract the interest of researchers. The present work had as its aim to achieve simultaneous determination of Pb(II), Cu(II) and Ni(II...

Open access Research Article 10.9734/CSJI/2018/40983

Sequestration of Hexavalent Chromium from Aqueous Medium Using Biochar Prepared from Water Hyacinth Biomass

R. P. Premalatha, E. Parameswari, P. Malarvizhi, S. Avudainayagam & V. Davamani · Chemical Science International Journal · 2018

The global issue associated with the health of environment and human is the quality of water. A serious threat to the aquatic environment through anthropogenic activities is the heavy metal pollution. To protect our environment from the serious threats of contamination and to sav...

Open access Research Article 10.9734/CSJI/2018/40547

Study of Competitive Behavior of Cd(II) and Pb(II) Ions Through a Bulk Liquid Membrane

Mersiha Suljkanović & Jasmin Suljagić · Chemical Science International Journal · 2018

Aims: To investigate the competitive behavior of Cd(II) and Pb(II) ions within their equimolar mixtures, during transportation through a bulk liquid membrane, using macrocyclic carriers. Study Design:  Study was based on transport experiments, using homemade transport cell. Place...

Open access Research Article 10.9734/CSJI/2018/41127

The Influence of Different Acid Chloride on the General Characterizations, Electrical and Ultrasonic Mechanical of Terpolymers: Comparison Study

Momen S. A. Abdelaty, Abdel Haliem M. Hussien & Kamal I. Ali · Chemical Science International Journal · 2018

Unsaturated terpolyesters have been prepared and investigated by chemical and physical instruments. The effect of acid chloride in the general physical characterizations of terpolyesters was the aim of study. The solubility of terpolyesters has been tested in different solvents....

Open access Research Article 10.9734/CSJI/2018/40757

Thiourea Doped Silica Composite for Lead Removal: Isotherm, Kinetic, and Thermodynamic Studies

Oluwatoyin Iyanu Omotunde & Bamikole Walter Osungbemiro · Chemical Science International Journal · 2018

In this study, series of experiments were carried out in batch in order to examine the possibility of thiourea doped silica composite for the removal of lead under different experimental conditions. Adsorption of lead (II) ions was investigated with the difference in the paramete...

Open access Research Article 10.9734/CSJI/2018/40922

Metal Contamination of a Fish Species (Mugil curema) of the Beach of Soumbedioune (Dakar/Senegal)

Ibrahima Diagne, Cheikh Tidiane Dione, Momar Ndiaye, Cheikhna Diebakate, Birame Ndiaye, Dame Cisse, Maoudo Hane & Abdoulaye Diop · Chemical Science International Journal · 2018

This present work consists in studying the metal contamination of the beach of Soumbédioune, located at the western frontage of the Dakar area. This site, unloading place of fishery products, includes the channel IV which drains urban rejected waters. We determined the concentrat...

Open access Research Article 10.9734/CSJI/2018/40583