scholarly journals Photocatalytic degradation of organic dye and tetracycline by ternary Ag2O/AgBr–CeO2 photocatalyst under visible-light irradiation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fu Su ◽  
Pengpeng Li ◽  
Jianshu Huang ◽  
Meijuan Gu ◽  
Zhiying Liu ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Ag Nanoparticles ◽  
Photocatalytic Performance ◽  
Analytical Techniques ◽  
Organic Dye ◽  
Light Irradiation ◽  
Precipitation Method ◽  
Initial Capacity

AbstractIn this work, CeO2 nanosheets decorated with Ag2O and AgBr are successfully fabricated via a simple sediment-precipitation method. The as-prepared ternary Ag2O/AgBr–CeO2 composite with double Z-scheme construction was analyzed by various analytical techniques. Ag nanoparticles (NPs) used as the electron medium could reduce the recombination of photoelectrons and holes, thus leading to the improvement of photocatalytic performance of these catalysts. Due to the unique structure and composite advantages, the optimal Ag2O/AgBr–CeO2 photocatalysts exhibit the superior tetracycline (TC) degradation efficiency of 93.23% and favorable stability with near-initial capacity under visible light irradiation. This ternary Z-scheme structure materials will be the well-promising photocatalysts or the purification of antibiotic wastewater.

Synthesis of nitrogen-doped ZnO by sol–gel method: characterization and its application on visible photocatalytic degradation of 2,4-D and picloram herbicides

2015 ◽  
Vol 14 (3) ◽  
pp. 536-542 ◽  
Author(s):  
J. J. Macías-Sánchez ◽  
L. Hinojosa-Reyes ◽  
A. Caballero-Quintero ◽  
W. de la Cruz ◽  
E. Ruiz-Ruiz ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Zno Nanoparticles ◽  
Photocatalytic Performance ◽  
Sol Gel ◽  
Light Irradiation ◽  
Gel Method ◽  
Nitrogen Doped ◽  
Doped Zno

The photocatalytic performance of modified 30% wt. N-ZnO nanoparticles under visible light irradiation was demonstrated by the oxidation of picloram and 2,4-D.

A core–shell TiO2@C nano-architecture: facile synthesis, enhanced visible photocatalytic performance and electrochemical capacitance

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62424-62432 ◽  
Author(s):  
Linrui Hou ◽  
Hui Hua ◽  
Hui Cao ◽  
Siqi Zhu ◽  
Changzhou Yuan
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Core Shell ◽  
Facile Synthesis ◽  
Electrochemical Capacitance ◽  
Electrochemical Behaviors

A mesoporous core–shell TiO2@C nanohybrid exhibited remarkable photocatalytic degradation efficiency and stability for methylene blue under visible light irradiation, and attractive electrochemical behaviors for electrochemical capacitors.

scholarly journals Interface enriched highly interlaced layered MoS2/NiS2 nanocomposites for the photocatalytic degradation of rhodamine B dye

RSC Advances ◽  
2021 ◽  
Vol 11 (31) ◽  
pp. 19283-19293
Author(s):  
S. Harish ◽  
P. Bharathi ◽  
Prachi Prasad ◽  
R. Ramesh ◽  
S. Ponnusamy ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Rhodamine B Dye ◽  
Layered Mos2

The photocatalytic performance of MoS2/NiS2 nanocomposites was studied by the degradation of rhodamine B (RhB). Ni-4 sample shows higher photocatalytic activity with a maximum degradation of 90.61% under visible light irradiation for 32 min.

Photocatalytic Degradation of Rhodamine B Under Visible Light Irradiation by TiO2 Doped Layered Zirconium Phosphates

2020 ◽  
Vol 20 (3) ◽  
pp. 1697-1703 ◽  
Author(s):  
Fei Li ◽  
Chuan Lu ◽  
Bin Xu ◽  
Li-Yuan Cheng
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Zirconium Phosphate ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Tetrabutyl Titanate ◽  
Nano Scale ◽  
Zirconium Phosphates

TiO2 doped layered zirconium phosphates were prepared by the hydrofluoric acid (HF) method and its photocatalytic performance was investigated in this study. Through the introduction of octylamine which acts as the intercalation and exfoliation reagent in the process, TiO2 could be uniformly generated and dispersed on the zirconium phosphate matrix through tetrabutyl titanate hydrolysis and calcination. The nano-scale TiO2 was obtained by applying the appropriate ratio of tetrabutyl titanate and layered zirconium phosphate in reaction. XRD, N2-sorption, FT-IR, UV-vis, SEM and TEM were used to characterize the structure and phtocatalytic properties of the samples. The photocatalytic performance of synthesized nano-scale TiO2 doped zirconium phosphates was studied by degradation of Rhodamine B (RhB). It is found that the scavenging rate of RhB could be up to 65% within 90 min under the visible light irradiation due to the relatively large active surface area and compact size of TiO2. This study highlights the potential application of TiO2 doped layered zirconium phosphate as a novel photocatalyst in photocatalytic degradation of organic pollutants.

scholarly journals Synthesis of an Ag3PO4/Nb2O5 Photocatalyst for the Degradation of Dye

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 458
Author(s):  
Nur Syazwani Osman ◽  
Siti Norhasimah Sulaiman ◽  
Ernee Noryana Muhamad ◽  
Hayati Mukhair ◽  
Sin Tee Tan ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Band Gap Energy ◽  
Light Irradiation ◽  
Precipitation Method ◽  
X Ray ◽  
Molar Ratios ◽  
Methyl Orange Dye

In this work, the photocatalytic performance of Ag3PO4, Nb2O5 and Ag3PO4/Nb2O5 hybrid photocatalysts to degrade methyl orange dye, MO, in an aqueous solution under visible light irradiation was evaluated. The Ag3PO4 and Ag3PO4/Nb2O5 photocatalysts, with various Ag to Nb molar ratios, were prepared using a facile precipitation method. The photocatalysts were characterized by X-ray diffraction, UV–Visible, X-ray Photoelectron, and Photoluminescence spectroscopies. Upon the addition of Ag3PO4, the band gap energy of Nb2O5 decreased from 3.0 eV to 2.7 eV, indicating the possible use of the Ag3PO4/Nb2O5 hybrid photocatalysts under visible light irradiation. All of the prepared Ag3PO4/Nb2O5 catalysts exhibited higher photocatalytic performance than Ag3PO4 in degrading methyl orange dye under 23-watt visible light irradiation. The Ag3PO4/Nb2O5 catalyst, with a mole ratio of 2:1, exhibited the fastest MO degradation rate of 7.3 × 10−2 min−1, which is twice faster than that of Ag3PO4. The catalyst also shows better stability, as it is reusable for up to six experimental cycles while maintaining its photocatalytic activity above 60%.

Facile preparation of yolk–shell structured Si/SiC@C@TiO2 nanocomposites as highly efficient photocatalysts for degrading organic dye in wastewater

RSC Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 4063-4069 ◽  
Author(s):  
Mei-Pin Liu ◽  
Tingting Su ◽  
Lin Sun ◽  
Hong-Bin Du
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Organic Dye ◽  
Light Irradiation ◽  
Methyl Blue ◽  
Visible Light Region ◽  
Highly Efficient ◽  
Light Region ◽  
Facile Preparation

The prepared yolk–shell Si/SiC@C@TiO2 nanospheres show a strong photon absorbance throughout the visible light region, and excellent photocatalytic performance for degrading methyl blue in water under UV and visible light irradiation.

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