Cover Feature: Effects of Different Copper Loadings on the Photocatalytic Activity of TiO2
-SiO2
 Prepared at a Low Temperature for the Oxidation of Organic Pollutants in Water (ChemCatChem 14/2018)

Abstract This work is devoted to the study of new bioindifferent photocatalysts that use the energy of solar radiation to purify water from organic pollutants. Photocatalytic materials were obtained by a previously developed low-temperature pyrolytic synthesis. Varying the bismuth content in the percursor mixture within 15-30 %, allows controlling the phase formation of the bismuth and strontium silicate phases. The samples obtained at 25 % bismuth in the precursor mixture (in terms of Bi2O3 %, wt.) show the highest photocatalytic activity with Bi12SiO2, Bi4Si3O12 formed in the catalyst composition. Photocatalytic activity of coatings with the predominance of bismuth silicates is inferior to coatings with the predominance of strontium bismuthates, but their greater hydrolytic stability is observed.

Download Full-text

Effects of Different Copper Loadings on the Photocatalytic Activity of TiO2 -SiO2 Prepared at a Low Temperature for the Oxidation of Organic Pollutants in Water

ChemCatChem ◽

10.1002/cctc.201800249 ◽

2018 ◽

Vol 10 (14) ◽

pp. 2982-2993 ◽

Cited By ~ 4

Author(s):

Tihana Čižmar ◽

Urška Lavrenčič Štangar ◽

Mattia Fanetti ◽

Iztok Arčon

Keyword(s):

Photocatalytic Activity ◽

Low Temperature ◽

Organic Pollutants

Download Full-text

Enhanced visible-light photocatalytic activity and recyclability of magnetic core-shell Fe3O4@SiO2@BiFeO3–sepiolite microspheres for organic pollutants degradation

Journal of Molecular Liquids ◽

10.1016/j.molliq.2021.116566 ◽

2021 ◽

pp. 116566

Author(s):

Gang Su ◽

Lihua Liu ◽

Qiujuan Kuang ◽

Xing Liu ◽

Wenhao Dong ◽

...

Keyword(s):

Photocatalytic Activity ◽

Visible Light ◽

Organic Pollutants ◽

Magnetic Core ◽

Core Shell ◽

Visible Light Photocatalytic Activity ◽

Visible Light Photocatalytic

Download Full-text

A review on TiO2-based composites for superior photocatalytic activity

Reviews in Inorganic Chemistry ◽

10.1515/revic-2020-0025 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Wail Al Zoubi ◽

Abbas Ali Salih Al-Hamdani ◽

Baek Sunghun ◽

Young Gun Ko

Keyword(s):

Photocatalytic Activity ◽

Organic Pollutants ◽

Cost Efficiency ◽

High Stability ◽

Photocatalytic Oxidation ◽

Oxidation Process ◽

Ambient Conditions ◽

Photoelectrochemical Activity ◽

As Doping ◽

Degradation Of Pollutants

Abstract Heterogeneous photocatalysts was a promising material for removing organic pollutants. Titanium dioxide (TiO2) was a suitable photocatalyst for its cost efficiency and high stability to reduce various pollutants. Enhancing TiO2 photocatalyst performance by doping with changed metals or non-metal ions and organic compounds have been reviewed. These methods could enhance photoelectrochemical activity via: (i) by a donor of electrons via electron-donor agents that would produce particular defects in TiO2 structure and capture transporters of charge; (ii) by reducing recombination rate of the charge transporters and increasing degradation of pollutants. This study investigates the modification approaches of TiO2 that comprise methods for overcoming the essential TiO2 restrictions and enhancing the photocatalytic degradation of organic pollutants. Consequently, it emphasized on the current progress of modified-TiO2 used for different pollutants in ambient conditions. Amendment techniques, such as inorganic and organic parts as doping, are studied. The reported experimental results obtained with the photocatalytic oxidation process for degrading organic pollutants were also collected and assessed.

Download Full-text