Enhanced photocatalytic degradation activity via a stable perovskite-type LaFeO3/In2S3 Z-scheme heterostructured photocatalyst: unobstructed photoexcited charge behavior of Z‑Scheme Photocatalytic system exploration

Here we report the photocatalytic degradation characteristics of Rhodamine B in the presence of Cr(VI). Some interesting results were observed during the photocatalytic process. Cr(VI) caused a deactivation effect on the catalyst due to the formation of Cr(OH)3precipitate blocking the active sites of catalyst. Moreover, a kind of red oligomer precipitate was found during the RhB degradation when Cr(VI) was presented. This precipitate was rarely reported in photocatalytic system.

Download Full-text

Selective fluorescent sensing and photocatalytic properties of three MOFs based on naphthalene-1,4-dicarboxylic acid and 2,4,5-tri(4-pyridyl)-imidazole

New Journal of Chemistry ◽

10.1039/c7nj03530f ◽

2018 ◽

Vol 42 (5) ◽

pp. 3551-3559 ◽

Cited By ~ 4

Author(s):

Jun-Jie Wang ◽

Ren-Chun Zhang ◽

Ya-Li Cao ◽

Yan-Ang Li ◽

Yi-Ran Wang ◽

...

Keyword(s):

Dicarboxylic Acid ◽

Photocatalytic Degradation ◽

Rhodamine B ◽

High Sensitivity ◽

Photocatalytic Properties ◽

Luminescent Probes ◽

Fluorescent Sensing ◽

Degradation Activity

Three MOFs display high sensitivity in the detection of NB and Ca2+ or Co2+ ions as luminescent probes. Moreover, 3 exhibits a relatively good photocatalytic degradation activity of rhodamine B.

Download Full-text

Synthesis, characterization, and photocatalytic degradation activity of core/shell magnetic nanocomposites (Fe3O4@SiO2@Ag2WO4@Ag2S) under visible light irradiation

Optical Materials ◽

10.1016/j.optmat.2021.111818 ◽

2021 ◽

pp. 111818

Author(s):

Zaid H. Jabbar ◽

Shahlaa Esmail Ebrahim

Keyword(s):

Visible Light ◽

Photocatalytic Degradation ◽

Visible Light Irradiation ◽

Light Irradiation ◽

Magnetic Nanocomposites ◽

Core Shell ◽

Degradation Activity

Download Full-text

Synthesis and degradation kinetics of TiO2/GO composites with highly efficient activity for adsorption and photocatalytic degradation of MB

Scientific Reports ◽

10.1038/s41598-019-54320-w ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 2

Author(s):

Ruifen Wang ◽

Kaixuan Shi ◽

Dong Huang ◽

Jing Zhang ◽

Shengli An

Keyword(s):

Visible Light ◽

Photocatalytic Degradation ◽

Adsorption Capacity ◽

Degradation Kinetics ◽

Removal Rate ◽

Strong Adsorption ◽

Degradation Activity ◽

Kinetics Of ◽

Stacking Structure ◽

Synthesis And Degradation

AbstractPoriferous TiO2/GO (denoted as TGO-x%) photocatalysts with ultrathin grapheme oxide (GO) layer were prepared by a hydrothermal method, the adsorption and photocatalytic degradation and its kinetics about Methylene blue(MB) were studied systematically. All the TGO-x% showed improved adsorption and photodegradation performance. TGO-25% had excellent adsorptivity while TGO-20% exhibit the highest visible light photocatalytic degradation activity. The adsorption capacity for TGO-25% was 20.25 mg/gcatalyst along with the k1 was about 0.03393 min·gcatalyst/mg, this enhancement was mainly owing to the strong adsorption capacity of GO and the stacking structure of sheets and nanoparticles. GO sheets prevented the agglomeration of TiO2 particles and TiO2 nanoparticles also prevented the agglomeration of GO sheets, which could provides greater surface area. Besides, the remarkably superior photodegradation activity of TiO2/GO composites is mainly attribute to the strong absorption of visible light and the effective charge separation revealed by the photoluminescence, the total removal rate of MB is 97.5% after 35 min adsorption and 140 min degradation, which is 3.5 times higher than that of TiO2.

Download Full-text

Copper-nanoparticle-dispersed amorphous BaTiO3 thin films as hole-trapping centers: enhanced photocatalytic activity and stability

RSC Advances ◽

10.1039/c8ra09204d ◽

2019 ◽

Vol 9 (9) ◽

pp. 5045-5052 ◽

Cited By ~ 1

Author(s):

Su-Wei Zhang ◽

Shun Li ◽

Bo-Ping Zhang ◽

Dongfang Yu ◽

Zuotai Zhang ◽

...

Keyword(s):

Thin Films ◽

Photocatalytic Activity ◽

Photocatalytic Degradation ◽

Copper Nanoparticle ◽

Photoelectrochemical Performance ◽

Hole Trapping ◽

Degradation Activity ◽

Trapping Centers

The photocatalytic degradation activity and photoelectrochemical performance of amorphous BaTiO3 films can be improved after introducing Cu NPs, and the oxidation of Cu is strongly hindered when dispersing in the amorphous BaTiO3 films that serve as h+-trapping centers.

Download Full-text

Photocatalytic degradation activity of titanium dioxide sol–gel coatings on stainless steel wire meshes

Materials Chemistry and Physics ◽

10.1016/j.matchemphys.2010.08.062 ◽

2010 ◽

Vol 124 (2-3) ◽

pp. 1225-1231 ◽

Cited By ~ 35

Author(s):

M. Bestetti ◽

D. Sacco ◽

M.F. Brunella ◽

S. Franz ◽

R. Amadelli ◽

...

Keyword(s):

Stainless Steel ◽

Titanium Dioxide ◽

Photocatalytic Degradation ◽

Steel Wire ◽

Sol Gel ◽

Stainless Steel Wire ◽

Degradation Activity ◽

Wire Meshes

Download Full-text

Photocatalytic Degradation of 2,4,5–TCP in TiO2/UV/H2O2 System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.518-523.2649 ◽

2012 ◽

Vol 518-523 ◽

pp. 2649-2652

Author(s):

Yan Ping Zong ◽

Xian Hua Liu ◽

Xi Wen Du ◽

Yi Ren Lu ◽

Xiao Xuan Shi

Keyword(s):

Hydrogen Peroxide ◽

Photocatalytic Degradation ◽

Absorption Spectroscopy ◽

Degradation Mechanism ◽

Analysis Method ◽

Photocatalytic System ◽

Initial Ph ◽

Effects Of Ph

The photocatalytic degradation of 2,4,5–Trichlorophenol(2,4,5–TCP) in TiO2/UV/ H2O2 photocatalytic system was examined using absorption spectroscopy and GC-MS. It was found that 2,4,5–TCP could be degraded almost completely within 100 min under the conditions of initial pH 3, C(H2O2) = 0.08 mol/L and C(TiO2) = 0.5 g/L. The effects of pH and the concentration of hydrogen peroxide on the degradation of 2,4,5–TCP were also studied. Besides, the degradation mechanism was concluded accorrding to convertional analysis method too.

Download Full-text