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All published articles 1032

Synthesis and Characterization of Co-doped Nickel-ZnO/Polypyrrole Nano-composites, and Their Effect on Photo-catalytic Degradation of P-nitrophenol under Solar Irradiation

Gemechu Lemessa, Dunkana Negussa & P. S. Bedi · International Research Journal of Pure and Applied Chemistry · 2018

Nickel-polypyrrole co-modified ZnO nano-composites (Ni-ZnO/Ppy) were synthesized by two methods, metal impregnation of nickel (Ni) and In-situ chemical polymerization of polypyrrole (Ppy) on ZnO nano-particles. The crystal size, band gap energy and bond structure of as-synthesize...

Open access Research Article 10.9734/IRJPAC/2018/45731

Discovery of κ-Carrageenan-Like Agarose from a Red Seaweed, Gracilaria coronopifolia

Masakuni Tako & Teruko Konishi · International Research Journal of Pure and Applied Chemistry · 2018

Agarose is a major gelling constituent of agar extracted from red seaweeds and is used in the separation, purification, and characterization of bio-macromolecules (DNA, RNA, protein and polysaccharide). The purpose of this study is to identify a novel agarose molecule. The polysa...

Open access Research Article 10.9734/IRJPAC/2018/45201

Micro-strip Coating Method for Improved Photocatalytic Performance of ZnO through Bimetal Coupling with AgCu

Hauwa Sidi Aliyu, Aloba Isaac Oladele & Ja’afar Yusuf · International Research Journal of Pure and Applied Chemistry · 2018

The bimetal coupling of Ag and Cu into the matrix of ZnO semiconductor was successfully achieved using microwave irradiation technique under very low synthetic temperature and power of and 240 Watt, respectively. In order to determine the phase, structural, morphological and elem...

Open access Research Article 10.9734/IRJPAC/2018/26975

Effect of Ohmic Heating and Lye-Salt Concentrations on Quality Characteristics of Tomato Puree

Sawant Sanket Ramnath, Pandey Jai Prakash, Anupama Singh & Om Prakash · International Research Journal of Pure and Applied Chemistry · 2018

Objectives: To study the effect of ohmic heating and lye-salt concentrations on quality characteristics of tomato puree. The quality characteristics of tomato puree by using ohmic heating and lye-salt concentrations were investigated. Ohmic heating is also termed as ‘resistance h...

Open access Research Article 10.9734/IRJPAC/2018/44839

One Pot Synthesis and Spectroscopic Characterization of Novel 8-Azacoumarin Derivatives as Eco-Friendly Insecticidal Agents

Mohamed, A. A. Shaymma, Sameh A. Rizk & Khalil Ali · International Research Journal of Pure and Applied Chemistry · 2018

A series of five 8-azacoumarin derivatives bearing aryl moieties at C-5 and C-7 designed and synthesised by a concise procedure utilising grinding and ultrasound approaches. The multi-component protocols proceeded smoothly in the absence of solvent to furnish the target products...

Open access Research Article 10.9734/IRJPAC/2018/44129

Accumulation Ability of the Native Grass Species, Cyperus rotundus for the Heavy Metals; Zinc (Zn), Cadmium (Cd), Nickel (Ni) and Lead (Pb)

S. T. Garba, M. Gudusu & L. B. Inuwa · International Research Journal of Pure and Applied Chemistry · 2018

In this paper, laboratory pots experiment was conducted to assessing the absorption and accumulation potential of the native grass species, Cyperus rotundus. Viable seed of the grass were seeded into soil (2.0 kg) amended with different concentrations of the metals, Zn, Pb, Cd an...

Open access Research Article 10.9734/IRJPAC/2018/44604

Effect of Morphological Structure, Temperature and Solvent on the Association Behavior of Some Copper Salts- Conductometric Study

Farid I. El-Dossoki, Alaa H. Elgamal, Menna Allah H. Elgamal & Salma A. Ibrahim · International Research Journal of Pure and Applied Chemistry · 2018

The purpose of this study is the investigation of the effect of morphological structure, temperature and solvent on the association thermodynamic of some copper salts using conductometric measurements. The conductivity data have been analyzed by Shedlowsky equation to determine i...

Open access Research Article 10.9734/IRJPAC/2018/44420

Analytical Method for the Determination of Surfactants with Fluorescent Activity, Present in Liquid Effluents from Textile Industries, by HPLC-Fluorescence

Martínez Ramón Alberto, Fechner Diana Corina, Ruiz Díaz Juan Daniel & Vazquez Francisco Antonio · International Research Journal of Pure and Applied Chemistry · 2018

In textile industries effluents we can be found surfactants of various characteristics, alkalis, and sulfides partially or totally hydrolyzed dyes, among other things, which are used as dyeing material. This study aims to create an unconventional tool to evaluate the degree of en...

Open access Research Article 10.9734/IRJPAC/2017/36636

Physicochemical and Catalytic Properties of Granular Mordenites of High Crystallinity Degree with a Hierarchical Porous Structure: Influence of Post-synthetic Treatment

O. S. Travkina, A. N. Khazipova, I. N. Pavlova, A. F. Akhmetov, B. I. Kutepov & L. S. Galyautdinova · International Research Journal of Pure and Applied Chemistry · 2018

The purpose of this research was to study the influence of post-synthetic treatment of a granular mordenite of a high degree of crystallinity with a hierarchical porous structure in water vapour medium and aqueous solutions of citric acid.  The conditions providing the increase o...

Open access Research Article 10.9734/IRJPAC/2018/43923

Densitometric and UV-Spectrophotometric Methods for Simultaneous Determination of Spiramycin adipate in Binary Mixture with Oxytetracycline-HCl or Tetracycline-HCl

Asmaa O. El Demerdash, Sawsan A. Abdel Razeq, Manal M. Fouad & Hoda F. El Sanabary · International Research Journal of Pure and Applied Chemistry · 2018

Five methods were developed for simultaneous determination of spiramycin adipate and oxytetracycline-HCl and/or tetracycline-HCl in their pharmaceutical formulations. The first one was a densitometric evaluation of thin-layer chromatograms using a mobile phase of methanol: Butano...

Open access Research Article 10.9734/IRJPAC/2018/44345

The Calculation of H-X Strength of Bonds in Hydrides of Certain Atoms of Mendeleev’s Periodic Table

Vitaly V. Ovchinnikov · International Research Journal of Pure and Applied Chemistry · 2018

The strengths of H-X bond (Sb) of lithium,  sodium, beryllium, magnesium, calcium, carbon, silicon, nitrogen, phosphorus, arsenic, oxygen and sulfur were calculated with use of equation ∆aΨogas/cond  = Σ ∆atomΨogas/cond - ∆fΨogas/cond  = Σ Sb gas/cond, in which were included the...

Open access Research Article 10.9734/IRJPAC/2018/42779

Synthesis and Characterization of Pigment Grade Red Iron Oxide from Mill Scale

Md. Saiful Quddus, Md. Lutfor Rahman, Juliya Khanam, Bristy Biswas, Nahid Sharmin, Samina Ahmed & A. J. M. Tahuran Neger · International Research Journal of Pure and Applied Chemistry · 2018

This work aims at conversion of mill scale to produce value-added pigment grade red iron oxide by multi-step process, such as milling, acid treatment, mixing with redox reagents and calcination. In all steel re-rolling industries, mill scale is a solid waste material produced as...

Open access Research Article 10.9734/IRJPAC/2018/42935

M-Polynomial and Degree Based Topological Indices for Silicon Oxide

P. J. N. Thayamathy, P. Elango & M. Koneswaran · International Research Journal of Pure and Applied Chemistry · 2018

Silican oxide (SiO2) is the most abundant oxide present on the surface of the earth which has a wide spectrum of technological applications due to it's various chemical and physical properties. The topological index is a numerical representation of a molecular structure. The firs...

Open access Research Article 10.9734/IRJPAC/2018/42645

Spatiotemporal Variation of the Phenol Level of the Ebrié Lagoon (Ivory Coast)

Tossou Germain, Ekou Lynda, Ekou Tchirioua, Yacouba Zoungranan, Kpidi Habib Yapo & Ouattara Lamoussa · International Research Journal of Pure and Applied Chemistry · 2018

Toxic compounds are frequently found in discharges (industrial and domestic effluents) with very variable biodegradability. Among those that are feared for the ecosystem are phenols. Phenol and its derivatives are considered by the Environmental Protection Agency as important pol...

Open access Research Article 10.9734/IRJPAC/2018/42413

Antimalarial Biflavonoids from the Roots of Ochna serrulata (Hochst.) Walp

Monica M. Ndoile & Fanie R. Van Heerden · International Research Journal of Pure and Applied Chemistry · 2018

Aims: To isolate and evaluate the biological activities of the compounds present in the roots of Ochna serrulata. Study Design:  Laboratory isolation of compounds by using various chromatographic methods, and cytotoxicity and antimalarial evaluations of the isolated compounds. Pl...

Open access Research Article 10.9734/IRJPAC/2018/42440