Preconcentration and determination of titanium in tap water, geological and sunscreen cream samples by CPE-FAAS method

Shokrollahi, Ardeshir; Gohari, Masoud

doi:10.1016/j.bjbas.2016.11.007

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…Titanium hydroxide is soluble in both diluted strong and weak acids, while titanium dioxide is soluble in hot strong concentrated acids. So, the generated titanium dioxide after calcination is subjected in diluted hydrochloric acid (0.1 M) and stirred for 60 min, then filtered to give solution 1 (Ti H ) and the precipitates which is then dissolved in hot concentrated hydrochloric acid (3 M) to give solution 2 (Ti O ), while the dissolution of the calcined sample will give solution 3 which is total titanium (Ti T ), and both of the obtained clear solutions are then subjected for measurement using atomic absorption as described by Shokrollahi and Gohari ( 2016 ). The conversion efficiency of nano titanium hydroxide to nano titanium dioxide is calculated from the following equation:…”

Section: Methodsmentioning

confidence: 99%

Green production of titanium dioxide nanometric particles through electrolytic anodic dissolution of titanium metal

Hussein

Hussien

Bazedi

et al. 2022

Environ Sci Pollut Res

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Nanometric titanium derivatives such as hydroxide and dioxide compounds have a great attention because they are significant industrial material of commercial importance and applications in photocatalyst, semiconductors, and wastewater treatment. The present investigation gives the results of anodic dissolution preparation of titanium hydroxide nanometric particles followed by calcination for complete conversion to nanometric titanium dioxide product. The optimum conditions for the anodic dissolution of titanium metal were pH 4, C.D. 65 mA/cm2, 25 °C, 150 rpm, electrode gap distance 3 cm, and NaCl 3 g/l for electrolysis time 240 min and thermally calcinated at 600 °C for 240 min., to reach complete conversion to anatase titanium dioxide nanopowder of main particles size of 77 nm with major percentage of 70%. Chemical and physical characterizations were carried out for evaluation of the obtained products including transmission electron microscope, EDX, XRD, and the scanning advanced electronic diffraction pattern. Preliminary economic indicators were calculated to show that the capital cost of the plant is $1.613 million, with annual operating cost of $0.915 million which means the required investment is $2.528 million. The operating cost for the production of nanometric anatase TiO2 is $30.5/kg with depreciation excluding the land price.

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Section: Methodsmentioning

confidence: 99%

Green production of titanium dioxide nanometric particles through electrolytic anodic dissolution of titanium metal

Hussein

Hussien

Bazedi

et al. 2022

Environ Sci Pollut Res

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“…All chemicals were of analytical reagent grade and were used as received. Double distilled water (DDW) was used throughout [26].…”

Section: Reagents and Materialsmentioning

confidence: 99%

Construction of modified carbon paste electrode by a new pantazene ligand for ultra-trace determination of ion silver in real samples

et al. 2019

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A new ligand, 1,5-bis(para methoxyphenyl)-3-ethyl-1,4-pantaazadiene has been synthesized by reaction of the 4-methoxyaniline (panisidine) with ethylamine. The mixture was stirred in an ice bath for 30 min. The structure of the synthesized compound resulted from the IR and 1 HNMR and 13 CNMR. Afterwards, a carbon paste electrode modified with this new ligand was developed for the silver determination at nano molar level concentration. The electerochemical properties of this modified electrode was investigated by employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods in an acetate buffer solution (pH=4.8). The effect of pH, scan rate, percentage of modifier and buffer as supporting electrolyte on the electrode process were investigated. The oxidation peak of Ag + was observed at about 0.4-0.5 V. The resulting electrode demonstrated linear response across a 10-9 to 10-8 mol/L-1 of silver concentration range with a detection limit value of 1.61×10-10 mol/L-1 , on the basis of a signal to noise ratio of 3. Relative Standard deviation (RSD%) of the electrode performance was 2.41%. This MCPE, showed high sensitivity and selectivity to Ag + ions in aqueous samples.

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Magnetic solid-phase extraction based on modified magnetic meso-porous silica nanospheres for pre-concentration of trace amounts of gold/silver samples in the water and plant environment before analyzing by flame atomic absorption spectrometry

Mohammadpour

Razmi

2022

J Porous Mater

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Preconcentration and determination of titanium in tap water, geological and sunscreen cream samples by CPE-FAAS method

Cited by 5 publications

References 21 publications

Green production of titanium dioxide nanometric particles through electrolytic anodic dissolution of titanium metal

Green production of titanium dioxide nanometric particles through electrolytic anodic dissolution of titanium metal

Construction of modified carbon paste electrode by a new pantazene ligand for ultra-trace determination of ion silver in real samples

Magnetic solid-phase extraction based on modified magnetic meso-porous silica nanospheres for pre-concentration of trace amounts of gold/silver samples in the water and plant environment before analyzing by flame atomic absorption spectrometry

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