TiO2 pigment prices seem to be holding up remarkably well

Ilmenite is an economically important and interesting mineral. It is found as a by-product of tin mining in Bangka Indonesia. This mineral has can be used as the source of making titanium metal, titanium dioxide (TiO2) pigment and material for photo catalysts. However, the synthesis of TiO2 from ilmenite using both sulfate and chloride processes still has faced a major problem to obtain white pigment of high purity and lower operation cost. This is mainly due to Fe2O3 impurity in TiO2 pigment which cannot be easily decomposed. Therefore, this study is aimed at investigating the possibility of using Bangka ilmenite mineral to obtain TiO2 pigments and photocatalysts. For this purpose, , sodium hydroxide (NaOH) was used as decomposition solution via hydrothermal process in a teflon-lined autoclave equipment. The characterization results indicated that Bangka ilmenite contains a significant TiO2 level of more than 30 %, although there still remains some other impurities. Upon decomposition of dissolution using NaOH, was decrease in impurity elements down to 60 %. The decomposition process of ilmenite was optimum at NaOH concentration of 10 M where the ilmenite decomposes to form an intermediate phase of sodium titanate with the morphological shape of fine threads.

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Influence of nitrogen dioxide and acetylene on marbles, ceramics and pigment

Global NEST Journal ◽

10.30955/gnj.000510 ◽

2013 ◽

Vol 10 (2) ◽

pp. 183-191

Keyword(s):

Air Pollution ◽

Nitrogen Dioxide ◽

Synergistic Effects ◽

Scientific Basis ◽

Solid Surfaces ◽

Reversed Flow ◽

The Social ◽

Tio2 Pigment ◽

Adsorption Quantity

The air pollution has a great impact on the social and economic aspects all over the world. Thus, the interaction of materials with the atmosphere has received increased attention nowadays. In order to estimate the impacts of air pollution on the solid surfaces a suitable scientific basis is developed and the well known Reversed Flow - Inverse Gas Chromatography, RF- IGC, is used. This dynamic experimental technique leads to very interesting experimental results through the determination of some important physicochemical quantities. The solids studied were Pentelic marble, white TiO2 pigment, ceramic and the gases were NO2 and C2H2. The synergistic effects between acetylene and nitrogen dioxide were also investigated. Through the curves obtained for each adsorption quantity determined versus time, one can easily and accurately conclude the result of the pollution impact on every solid mentioned above. The surface topography and the mechanism of deterioration can also be studied. All the above answer in detail to the questions of where, when and how the influence of gas pollutants on materials of cultural heritage takes place.

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Huntsman Tioxide's new TR-38 TiO2 pigment for plastics applications

Focus on Pigments ◽

10.1016/s0969-6210(05)70610-x ◽

2005 ◽

Vol 2005 (5) ◽

pp. 8

Keyword(s):

Tio2 Pigment

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Some Aspects of TiO2 Pigment Industry

Journal of the Japan Society of Colour Material ◽

10.4011/shikizai1937.41.36 ◽

1968 ◽

Vol 41 (1) ◽

pp. 36-43

Author(s):

Reiziro URY^|^Ucirc;

Keyword(s):

Tio2 Pigment

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Preparation of black-TiO2 and its application in photocatalytic removal of methyl orange dye

Journal of Military Science and Technology ◽

10.54939/1859-1043.j.mst.76.2021.68-73 ◽

2021 ◽

pp. 68-73

Author(s):

Nguyen Quang Long

Keyword(s):

Photocatalytic Activity ◽

Methyl Orange ◽

Organic Pollutant ◽

X Ray Diffraction ◽

X Ray ◽

Typical Material ◽

Vis Spectroscopy ◽

Photocatalytic Removal ◽

Black Tio2 ◽

Tio2 Pigment

For a few decades, Titanium Dioxide (TiO2) has been the most studied photocatalyst due to its significant optical property. In the paper, TiO2 pigment powder (Anatase form) was selected as a precursor to prepare a variety of Black-TiO2 samples, and the typical material was then evaluated for its photocatalytic activity in organic pollutant treatment. Some properties of Black-TiO2 were determined via common methods such as sensory analysis, X-Ray diffraction, and bandgap measurement obtained from UV-Vis spectroscopy. As a result, the material was successfully converted to more than 40% organic pollutant as Methyl Orange (C14H14N3NaO3S) for an hour, as two times higher than that of the amount converted by pristine TiO2. In addition, Black-TiO2 performed much better photocatalytic activity in an acidic medium in comparison with a neutral one, and the material also remained its activity as more than 90% after three time-continuous recycling operations.

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