Statistical Analysis of the Removal of Acid Fuchsin Dye Using Zeolite 5A

Nada Sadoon Ahmedzeki; Atheer Kamil

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Publication Date

Fri Jun 30 2017

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Volume

18

Issue Number

2

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Statistics

Statistical Analysis of the Removal of Acid Fuchsin Dye Using Zeolite 5A

Dyes

Adsorption

Design of experiments

Zeolite5A

Response Surface Methodology.

Nada Sadoon Ahmedzeki

Atheer Kamil

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Investigation of the adsorption of acid fuchsin dye (AFD) on Zeolite 5A is carried out using batch scale experiments according to statistical design. Adsorption isotherms, kinetics and thermodynamics were demonstrated. Results showed that the maximum removal efficiency was using zeolite at a temperature of 93.68751 mg/g. Experimental data was found to fit the Langmuir isotherm and pseudo second order kinetics with maximum removal of about 95%. Thermodynamic analysis showed an endothermic adsorption. Optimization was made for the most affecting operating variables and a model equation for the predicted efficiency was suggested.

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Publication Date

Sun Mar 07 2010

Journal Name

Baghdad Science Journal

Adsorption Study for Chromium (VI) on Iraqi Bentonite

"Study

Adsorption

Chromium

Bentonite."

Khulood A.

Sara Badrie

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The subject of this research involves studying adsorption to remove hexavalent chromium Cr(VI) from aqueous solutions. Adsorption process on bentonite clay as adsorbent was used in the Cr(VI) concentration range (10-100) ppm at different temperatures (298, 303, 308 and 313)K, for different periods of time. The adsorption isotherms were obtained by obeying Langmuir and Freundlich adsorption isotherm with R2 (0.9921-0.9060) and (0.994-0.9998), respectively. The thermodynamic parameters were calculated by using the adsorption process at four different temperatures the values of ?H, ?G and ?S was [(+6.582 ? +6.547) kJ.mol-1, (-284.560 ? -343.070) kJ.mol-1 and (+0.977 ? +1.117) kJ.K-1.mol-1] respectively. This data indicates the spontaneous sorp

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(1)

Publication Date

Sat Sep 01 2018

Journal Name

Polyhedron

Novel dichloro (bis {2-[1-(4-methylphenyl)-1H-1, 2, 3-triazol-4-yl-κN3] pyridine-κN}) metal (II) coordination compounds of seven transition metals (Mn, Fe, Co, Ni, Cu, Zn and Cd)

The 1

3-dipolar cycloaddition “click” reaction between an azide and an alkyne to give a 1

2

3-triazole was reported by Huisgen in 1961 [1]. In 2002 the Copper(I)-catalyzed Azide-Alkyne Cycloaddition (CuAAC) to prepare a 1

2

3-triazole was reported [2]

[3]. The existence of relatively basic nitrogen atoms in the 1

2

3-triazole rings

and the possibility of introducing additional donor groups in the substituents (Fig. 1)

made the CuAAC “click” reaction an attractive method to prepare differently substituted 1

2

3-triazoles. These compounds have been used as ligands to coordinate to various metal ions that display a range of applications such as in electrochemical and photochemical studies

in supramolecular chemistry

magnetism

metal-ion sensing and catalysis [4]. The reasons for the success of the “click” reaction

is that it is easy to carry out and is widely applicable. It is not affected by a variety of functional groups

and can be carried out with a variety of Cu(I) catalysts and solvents

including aqueous conditions. The Cu(I) catalysts overcome the high activation energy barrier of the non-catalyzed Huisgen reaction by changing the mechanism of the reaction. A large variety of copper catalysts can be used for the CuAAC reaction

on condition that the maximum concentration of Cu(I) species is generated during the reaction. The pre-catalyst can be a Cu(II) salt (usually CuSO4) together with a reducing agent (often sodium ascorbate) or a Cu(I) compound in the presence of a base or amine ligand and a reducing agent to prevent oxidation to Cu(II). Some strong oxidising cupric salts or complexes such as Cu(OAc)2 also work. The solvent is very flexible from organic to aqueous

with the most commonly used combination water + an alcohol (t-BuOH

MeOH or EtOH). The key role of the solvent or solvent mixture is to solubilize the substrates and Cu(I) catalyst in order to ensure rapid reactions. Such aqueous conditions are very useful for biochemical conjugations

as well as for organic syntheses. We recently reported on the synthesis of a series of differently substituted 1

2

3-triazole chromophores

the substituted 2-(1-phenyl-1H-1

2

3-triazol-4-yl)pyridine ligands [5]

see Fig. 2 middle

with substituents R = H (L1)

CH3 (L2)

OCH3 (L3)

COOH

F

Cl

CN

CF3

O(CH2)3CH3 and N(CH3)2. These versatile ligands were found to coordinate to various first row transition metals

such as manganese

cobalt and nickel [6]. Here we extend the series to include more first row transition metal(II) coordination compounds

iron

copper and zinc

as well as a second row transition metal(II) coordination compound

cadmium

containing the 2-(1-(4-methyl-phenyl)-1H-1

2

3-triazol-1-yl)pyridine chromophore (Fig. 2 right with R = CH3). This series of seven novel coordination compounds is the first series of pyridyl-triazole based transition metal coordination compounds where seven different transition metals are coordinated to the same 1

2

3-triazole chromophore

namely 2-(1-(4-methyl-phenyl)-1H-1

2

3-triazol-1-yl)pyridine.

Kinaan M

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Publication Date

Tue May 26 2026

Journal Name

Journal Of Baghdad College Of Dentistry

Fracture resistance of weakened premolars restored with sonically-activated composite, bulk-filled and incrementally-filled composites(A comparative in vitro study)

Fatima

Manhal A

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Background: This study was conducted to assess the effect of sonic activation and bulk placement of resin composite in comparison to horizontal incremental placement on the fracture resistance of weakened premolar teeth. Materials and method: Sixty sound human single-rooted maxillary premolars extracted for orthodontic purposes were used in this study. Teeth were divided into six groups of ten teeth each: Group 1 (sound unprepared teeth as a control group), Group 2 (teeth prepared with MOD cavity and left unrestored), Group 3 (restored with SonicFillâ„¢ composite), Group 4 (restored with Quixfilâ„¢ composite), Group 5 (restored with Tertic EvoCeramÂ® Bulk Fill composite) and Group 6 (restored with Universal Tetric EvoCeramÂ® co

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Publication Date

Mon Apr 01 2024

Journal Name

Medical Journal Of Babylon

Clinical Evaluation and Comparison between Effects of Rituximab and Prednisolone with Imuran to Neutrophils and Platelet Counts in Pemphigus Vulgaris Patients

Neutrophils

pemphigus vulgaris

platelets

rituximab

Ban

Ghassan Hassan

Fawaz. D. AL.

Zahra Ali

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Background: Pemphigus vulgaris (PV) is an autoimmune vesiculobullous mucocutaneous disease with life-threatening consequences. Rituximab (RTX) has recently emerged as an effective treatment for PV. Objectives: This study aims to determine changes in neutrophil and platelet counts for PV patients treated with RTX or corticosteroids combined with Imuran (azathioprine). Materials and Methods: The present cross-sectional study was conducted in the Department of Dermatology at Baghdad Teaching Hospital, Baghdad, Iraq. Thirty PV patients received two types of treatment: 15 patients were administered RTX and 15 patients took corticosteroids with Imuran (azathioprine). Neutrophil and platelet counts were detected at the hospital laboratory. Results

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Publication Date

Thu Aug 01 2024

Journal Name

Iop Conference Series: Earth And Environmental Science

Combining Bourgoyne and Young Equations by Bagging Tree Regression to Predict Rate of Penetration in a Southern Iraqi Field, Case Study

Ebrahim A.

Sameera

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Abstract<p>Achieving an accurate and optimal rate of penetration (ROP) is critical for a cost-effective and safe drilling operation. While different techniques have been used to achieve this goal, each approach has limitations, prompting researchers to seek solutions. This study’s objective is to conduct the strategy of combining the Bourgoyne and Young (BYM) ROP equations with Bagging Tree regression in a southern Iraqi field. Although BYM equations are commonly used and widespread to estimate drilling rates, they need more specific drilling parameters to capture different ROP complexities. The Bagging Tree algorithm, a random forest variant, addresses these limitations by blending domain kno</p> ... Show More

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Publication Date

Tue May 26 2026

Journal Name

Journal Of Baghdad College Of Dentistry

Dental caries among a group of boys with Î²-thalassemia major (10-12 years old) in relation to salivary Mutans streptococci

Raghad R

Sulafa K

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Background: Beta thalassemia major is an inherited disorder that may affect general and oral health.The purpose of this study was toassess the severity of dental caries in relation to oral cleanliness, mutans streptococciamong a group of boys with beta thalassemia majorin comparison with a control group. Materials and Methods: The study involved 30 boys with BTM aged 10-12 years compared to 30 healthy boys with the same age group. d1-4mfs and D1-4 MFS indices were applied (Muhlemann, 1976), the viable counts of mutans streptococci in stimulated saliva were also determined. Results: The entire thalassemic group was caries-active. For both dentitions, a higher dmfs/DMFS values were recorded for study compared to control group, difference was

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Publication Date

Sat Apr 04 2020

Journal Name

Biochemical And Cellular Archives

SYNTHESIS, CHARACTERIZATION AND EVALUATION OF ANTIOXIDANT IN-VIVO AND IN-VITRO AND ANTIBACTERIAL FOR N-(3,4- DIHYDROXYBENZYLIDENE) ACETOHYDRAZONE-2-(BENZYLTHIO) BENZIMIDAZOLE

Halah

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Publication Date

Sun Jan 01 2023

Journal Name

The Egyptian Journal Of Hospital Medicine

Effect of Radioactive Iodine Therapy on Interleukin-2 (IL-2), IL-17 and Physiological Parameters in Iraqi Patients with Graves’ Disease

Samara Assad

Rakad M. Kh

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Publication Date

Sun Dec 07 2014

Journal Name

Baghdad Science Journal

Genotypic Study of Two Virulence Factors fimH and kpsMTII in Uropathogenic Escherichia coli Isolates from Children Patients with Urinary Tract Infections

Uropathogenic Escherichia coli (UPEC)

Polymerase chain reaction (PCR)

Virulence factor (VF).

Zahraa A.

Khalid A.

Zaid N.

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Adhesion (type 1 fimbriae) and host defense avoidance mechanisms (capsule or lipopolysaccharide) have been shown to be prevalent in Escherichia coli isolates associated with urinary tract infections. In this work, 50 uropathogenic Escherichia coli (UPEC) isolated from children with urinary tract infections were genotypically characterized by polymerase chain reaction (PCR) assay. We used two genes; fimH and kpsMTII, both of them previously identified in uropathogenic E.coli (UPEC) isolates. The PCR assay results identified fimH (90.0)% and kpsMTII (72.0)% isolates. In the present study, was also demonstrated that these genes may be included in both or one of them within a single isolate.

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Publication Date

Wed Sep 14 2016

Journal Name

Journal Of Baghdad College Of Dentistry

CorrÐµlation bÐµtwÐµÐµn Dual-Ð•nÐµrgy X-Ray AbsorptiomÐµtry and Panoramic Mandibular IndicÐµs in PrÐµdiction of BonÐµ MinÐµral DÐµnsity in PostmÐµnopausal FÐµmalÐµs

Safa Hasan

Lamia H.

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Background: OstÐµoporosis is a systÐµmic disÐµasÐµ of thÐµ bonÐµ that is charactÐµrizÐµd by rÐµducÐµd bonÐµ mass, which lÐµads to incrÐµasÐµd bonÐµ fragility and fracturÐµparticularly in postmÐµnopausal womÐµn.ThÐµ aims of study was toÐµvaluatÐµ thÐµ rÐµlationship bÐµtwÐµÐµn mandibular radiomorphomÐµtric indicÐµs obtainÐµd on digital panoramic radiographswith thÐµ bonÐµ minÐµral dÐµnsitiÐµs of thÐµ lumbar spinÐµÐµvaluatÐµd using dual-ÐµnÐµrgy X-ray absorptiomÐµtry (DXA) scan, in a population of ostÐµoporotic and non-ostÐµoporotic fÐµmalÐµs. MatÐµrials and mÐµthods: In panoramic imagÐµs obtainÐµd from 60 fÐµmalÐµ individuals dividÐµd Ðµq

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