Remediation of Wastewater with Ultraviolet Irradiation Using a Novel Titanium (IV) Oxide Photocatalyst

Matei, Ecaterina; Covaliu, Cristina Ileana; Predescu, Andra Mihaela; Berbecaru, Andrei; Tarcea, Claudia; Predescu, Cristian

doi:10.1080/00032719.2019.1604723

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…In reality, about 1 million different dyes are found in the market [112] and roughly 700,000 tons of artificial dyes are produced per year [113]. The disposal of dyes in waters exemplifies a severe environmental issue due to the coinciding presence of various types of pollutants [114][115][116]. All traditional methods used for the treatment of dyes and/or heavy metals have limitations because of cost, efficiency and operational complications.…”

Section: Heavy Metals In Wastewater From the Textile Industrymentioning

confidence: 99%

Lead-Free Perovskite Nanocomposites: An Aspect for Environmental Application

De¹

2021

Perovskite and Piezoelectric Materials

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Perovskites possess an interesting crystal structure and its structural properties allow us to achieve various applications. Beside its ferroelectric, piezoelectric, magnetic, multiferroic, etc., properties, these branches of materials are also useful to develop materials for various environmental applications. As the population is increasing nowadays, different type of environmental pollution is one of the growing worries for society. The effort of researchers and scientists focuses on developing new materials to get rid of these individual issues. With modern advances in synthesis methods, including the preparation of perovskite nanocomposites, there is a growing interest in perovskite-type materials for environmental application. Basically, this chapter concludes with a few of the major issues in the recent environment: green energy (solar cell), fuel cell, sensors (gas and for biomedical), and remediation of heavy metals from industrial wastewater.

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Section: Heavy Metals In Wastewater From the Textile Industrymentioning

confidence: 99%

Lead-Free Perovskite Nanocomposites: An Aspect for Environmental Application

De¹

2021

Perovskite and Piezoelectric Materials

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“…The disposal of wastewaters from various origins represents a serious environmental issue due to the simultaneous presence of different types of pollutants [1][2][3][4]. Dyes and metals are widely used and often jointly released in large quantities from industrial activities such as dye manufacturing, the textile and leather tannery industries, pulp and paper processing, battery production [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Removal and Recovery of Metal Ions and Dyes from Wastewater through Montmorillonite Clay Mineral

et al. 2019

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The main objective of this work was to evaluate the potential of Montmorillonite nanoclay (Mt), readily and inexpensively available, for the simultaneous adsorption (and removal) of two classes of pollutants: metal ions and dyes. The attention was focused on two “model” pollutants: Ce(III) and crystal violet (CV). The choice is due to the fact that they are widespread in wastewaters of various origins. These characteristics, together with their effect on human health, make them ideal for studies on water remediation. Moreover, when separated from wastewater, they can be recycled individually in industrial production with no or simple treatment. Clay/pollutant hybrids were prepared under different pH conditions and characterized through the construction of the adsorption isotherms and powder X-ray diffraction. The adsorption behavior of the two contaminants was revealed to be significantly different: the Langmuir model reproduces the adsorption isotherm of Ce(III) better, thus indicating that the clay offers a unique adsorption site to the metal ions, while the Freundlich model proved to be the most reliable for the uptake of CV which implies heterogeneity of adsorption sites. Moreover, metal ions do not adsorb at all under acidic conditions, whereas the dye is able to adsorb under all the investigated conditions. The possibility to modulate the adsorption features by simply changing the pH conditions was successfully employed to develop an efficient protocol for the removal and separation of the different components from aqueous solutions mimicking wastewaters.

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