Photocatalytic degradation of organic dyes: Pd-γ-Al2O3 and PdO-γ-Al2O3 as potential photocatalysts

Kumar, Avvaru Praveen; Bilehal, Dinesh; Tadesse, Aschalew; Kumar, Deepak

doi:10.1039/d0ra10290c

Cited by 55 publications

(12 citation statements)

References 58 publications

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“…Some dyes such as naphtha based, azo dyes, acidic, basic, and metal complex dyes are chemically stable and they demand special chemical reagents or photocatalysts for degradation. 21–23 Rhodamine B is also a stable dye and the current work demonstrates the role of sodium borohydride in effectively degrading Rhodamine B via a mechanism following first order kinetics.…”

Section: Introductionmentioning

confidence: 70%

A designed miniature sensor for the trace level detection and degradation studies of the toxic dye Rhodamine B

et al. 2022

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Section: Introductionmentioning

confidence: 70%

A designed miniature sensor for the trace level detection and degradation studies of the toxic dye Rhodamine B

et al. 2022

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“…As a consequence, there are fewer photons available to penetrate the surface of the catalyst, which reduces the generation of highly reactive species. [39]…”

Section: Effect Of Initial Dye Concentrationmentioning

confidence: 99%

CuWO₄ Reinforced Co‐doped HAp Nanocomposite: Improved Photocatalytic Activity Towards Degradation of Eosin Y and Catalytic Activity in Crossed Aldol Condensation Reaction

Kalita,

Bose,

Chakraborty

et al. 2024

ChemistrySelect

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Preventing the recombination of photoinduced charge carriers in different semiconductor photocatalysts is crucial but high‐performance photocatalyst is still challenging. Herein, we report the synthesis of a novel heterojunction of cobalt‐doped hydroxyapatite with CuWO4 i. e. Co‐HAp@CuWO4 nanocomposite by simple and facile ultrasonication technique. The morphological and structural features of the composite was examined using PXRD, FTIR, SEM, EDS, TEM, UV‐DRS and XPS techniques. The optical analysis showed that the band gap of Co‐HAp@CuWO4 nanocomposite is 1.59 eV which is very much lower than pure HAp. The photocatalytic efficiency of Co‐HAp@CuWO4 was assessed in the degradation of Eosin Y dye under solar light irradiation. The result of degradation capacity is 94.5 % after 70 minutes of solar irradiation and it follows pseudo first‐order kinetics. The impact of different reaction parameters such as catalyst amount, initial concentration of the dye, and solution pH was also examined. The recyclability test showed that the synthesized material was highly stable in the visible‐light driven dye degradation. Heterogeneous catalytic efficacy of the prepared nanocomposite was examined in the crossed aldol condensation reaction of benzaldehyde and acetone and the outcomes confirmed that dibenzylideneacetone (DBA) was formed in the condensation reaction in outstanding yields under optimum conditions.

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“…RB is a biological fluorescence molecule used in bacterial staining studies (Rahman et al, 2013;Jabeen et al, 2021;Olagunju et al, 2021;Al-Buriahi et al, 2022;Zhou et al, 2022). On the other hand, MB is a toxic, heterocyclic cationic dye molecule that is widely used as a textile dye (Sahiner et al, 2015;Kumar et al, 2021;Saputra et al, 2022). Organic dyes are molecules that are resistant to biodegradation and have high stability to heat and light.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Use of Pd(II) Complex Bearing 2-(thiophen-2-yl)-1H-Benzimidazole Ligand for The Reduction / Degradation of Multiple Mixtures Containing 4-NP, RhB and MB Organic Pollutants

Tercan

2023

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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In this study, 2-(thiophen-2-yl)1H-benzimidazole ligand (L1) and its Pd(II) complex (C1) were synthesized and characterized by FT-IR, 1H-NMR, 13C-NMR, ESI-MS spectroscopic techniques. The catalytic efficiency of the C1 complex on the reduction of 4-nitro phenol compound (4-NP) and the degradation of rhodamine B (RhB), methylene blue (MB) dyes was investigated in the presence of NaBH4 in aqueous medium. The catalytic performance was examined with single solutions of these substrates (4-NP and RhB, MB dyes) and at the end of 5 minutes, over 92% conversion was observed for all three substrates. In the catalytic trials with 4-NP + RhB + MB triple substrate mixture, 84, 94 and 93% conversion values were obtained, respectively, after 5 minutes. C1 complex catalyst is very effective in the simultaneous reduction / degradation of these toxic organic compounds from aqueous environments without any competition or selectivity.

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Photocatalytic degradation of organic dyes: Pd-γ-Al₂O₃ and PdO-γ-Al₂O₃ as potential photocatalysts

Abstract: Mechanism of photocatalytic degradation of organic dyes by Pd/PdO NPs.

Cited by 55 publications

References 58 publications

A designed miniature sensor for the trace level detection and degradation studies of the toxic dye Rhodamine B

A designed miniature sensor for the trace level detection and degradation studies of the toxic dye Rhodamine B

CuWO₄ Reinforced Co‐doped HAp Nanocomposite: Improved Photocatalytic Activity Towards Degradation of Eosin Y and Catalytic Activity in Crossed Aldol Condensation Reaction

Catalytic Use of Pd(II) Complex Bearing 2-(thiophen-2-yl)-1H-Benzimidazole Ligand for The Reduction / Degradation of Multiple Mixtures Containing 4-NP, RhB and MB Organic Pollutants

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Photocatalytic degradation of organic dyes: Pd-γ-Al2O3 and PdO-γ-Al2O3 as potential photocatalysts

Abstract: Mechanism of photocatalytic degradation of organic dyes by Pd/PdO NPs.

Cited by 55 publications

References 58 publications

A designed miniature sensor for the trace level detection and degradation studies of the toxic dye Rhodamine B

A designed miniature sensor for the trace level detection and degradation studies of the toxic dye Rhodamine B

CuWO4 Reinforced Co‐doped HAp Nanocomposite: Improved Photocatalytic Activity Towards Degradation of Eosin Y and Catalytic Activity in Crossed Aldol Condensation Reaction

Catalytic Use of Pd(II) Complex Bearing 2-(thiophen-2-yl)-1H-Benzimidazole Ligand for The Reduction / Degradation of Multiple Mixtures Containing 4-NP, RhB and MB Organic Pollutants

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Product

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Photocatalytic degradation of organic dyes: Pd-γ-Al₂O₃ and PdO-γ-Al₂O₃ as potential photocatalysts

CuWO₄ Reinforced Co‐doped HAp Nanocomposite: Improved Photocatalytic Activity Towards Degradation of Eosin Y and Catalytic Activity in Crossed Aldol Condensation Reaction