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.

Enhanced Photocatalytic Performance of Iodine Doped Bi2WO6 Nanostructures under Visible-Light Irradiation

2013 ◽  
Vol 423-426 ◽  
pp. 163-166 ◽  
Author(s):  
Bao Wei Cao ◽  
Yun Hua Xu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrothermal Method ◽  
Absorption Spectra ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Photocatalytic Performance ◽  
Red Shift ◽  
Light Irradiation ◽  
Photocatalytic Activities

Bi2WO6 doped with iodine ions were synthesized using hydrothermal method and their photocatalytic activities to degrade Rhodamine B (RhB) under visible-light was investigated. The successful incorporation of I ions in Bi2WO6 was proved by XRD and XPS. UV-vis absorption spectra results show that I ion was successfully doped into Bi2WO6 and a red shift for I-doped Bi2WO6 appeared when compared to pure Bi2WO6. The photocatalytic activities of the photocatalysts were evaluated by the decolorization of RhB under visible-light irradiation. The results showed that the photocatalytic activity of I-doped Bi2WO6 was much higher than the undoped Bi2WO6.

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 Dye-sensitized Photocatalyst of Sepiolite for Organic Dye Degradation

Catalysts ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 235 ◽  
Author(s):  
Chitiphon Chuaicham ◽  
Radheshyam Pawar ◽  
Keiko Sasaki
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Trypan Blue ◽  
Light Irradiation ◽  
Cationic Dyes ◽  
Radical Scavenger ◽  
Dye Sensitized

The photocatalytic activity of sepiolite was examined for degradation of several dye compounds under visible light irradiation. Higher adsorption capacities and greater photocatalytic performance of cationic dyes (rhodamine B and methylene blue) were observed on sepiolite, in comparison with anionic dyes (orange II and trypan blue). Superiority in the photocatalytic activity of cationic dyes is attributed to the strong electrostatic attraction and photosensitization properties of cationic dye molecules. Sepiolite has degraded 45.3% rhodamine B within 120 min, which is the greatest photocatalytic degradation efficiency when compared with other dyes. Subsequently, the reusability of spent sepiolite after adsorption of rhodamine B was evaluated by the degradation of trypan blue under the visible light irradiation. The photocatalytic degradation performance of trypan blue by spent sepiolite after adsorption of rhodamine B increased about twice as much as with pristine sepiolite, indicating that the dye-sensitized photocatalytic process could enhance the photocatalytic degradation ability of sepiolite. Through radical scavenger tests, it was found that a superoxide radical is mainly responsible for rhodamine B degradation. The possible mechanism of rhodamine B degradation under visible light irradiation was proposed. The sepiolite could be a potential catalyst for the degradation of organic pollutants in wastewater under solar light.

Photodegradation of Rhodamine B over a novel photocatalyst of feather keratin decorated CdS under visible light irradiation

2015 ◽  
Vol 39 (9) ◽  
pp. 7112-7119 ◽  
Author(s):  
Qizhao Wang ◽  
Juhong Lian ◽  
Qiong Ma ◽  
Yan Bai ◽  
Jinhui Tong ◽  
...  
Keyword(s):  
Composite Material ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Light Irradiation ◽  
Natural Polymer ◽  
Feather Keratin ◽  
Rhodamine B Dye

Natural polymer feather keratin was employed as a composite material for enhancing the photocatalytic activity of CdS for the degradation of Rhodamine B dye.

CdS/Ag2S/g-C3N4 ternary composites with superior photocatalytic performance for hydrogen evolution under visible light irradiation

2021 ◽  
Vol 50 (9) ◽  
pp. 3253-3260 ◽  
Author(s):  
Shan Zhao ◽  
Junbiao Wu ◽  
Yan Xu ◽  
Xia Zhang ◽  
Yide Han ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Synergic Effect

CdS/Ag2S/g-C3N4 ternary composites showed excellent photocatalytic performance toward H2 evolution. Their improved photocatalytic activity could be attributed not only to the synergic effect, but also to the introduction of Ag2S.

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