Deciphering the mechanistic insights of 4-nitrophenol reduction catalyzed by a 1D–2D Bi<sub>2</sub>S<sub>3</sub> nanostructured catalyst

Mahto, Bhagirath; Barhoi, Ashok; Ali, Haider; Hussain, Sahid

doi:10.1039/d4nr00153b

Nanoscale

2024

DOI: 10.1039/d4nr00153b

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Deciphering the mechanistic insights of 4-nitrophenol reduction catalyzed by a 1D–2D Bi₂S₃ nanostructured catalyst

Bhagirath Mahto,

Ashok Barhoi,

Haider Ali

et al.

Abstract: Exploring the reaction mechanism and the catalyst role for pollutant conversion to value-added products is vital for sustainable development. Herein, a polyvinylpyrrolidone-assisted liquid-phase reflux strategy was utilized to synthesize anisotropic...

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Cited by 2 publications

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Synergy of Homojunction/Heterojunction to Enforce Photocatalytic Performance of BiSI/TiO₂ Quantum Dots/TiO_2–x Nanocomposites in NH₃ Generation

Pournemati,

Habibi-Yangjeh,

Khataee

2024

Ind. Eng. Chem. Res.

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The development of the global economy has caused irreparable damage to energy resources and the environment. Therefore, it is essential to find a solution to effectively deal with the energy crisis and environmental pollution. Photocatalytic nitrogen fixation processes employ renewable solar energy and water molecules under mild conditions to produce ammonia. In this attempt, in searching for efficacious materials for this reaction, ternary BiSI/TiO 2 quantum dots (QDs)/TiO 2−x nanocomposites were designed and fabricated by a green and easy procedure. The amount of ammonia generation over the optimal ternary BiSI/TiO 2 QDs/TiO 2−x photocatalyst reached 20,904 μmol L −1 g −1 within 180 min under ambient temperature and pressure, which was about 7.78, 5.45, 1.75, and 3.09 times as high as TiO 2 QDs, TiO 2−x , TiO 2 QDs/TiO 2−x , and BiSI photocatalysts, respectively. The matching of the energy bands with the developed double S-scheme homojunction/heterojunction mechanism and the establishment of optimal contact area between the components facilitated the separation and migration of charges and led to outstanding photocatalytic ability in ammonia generation. Furthermore, the improved specific surface area due to the quantum particle size and oxygen deficiency provided many active centers for adsorption and activation of dinitrogen molecules. As a result, the BiSI/TiO 2 QDs/TiO 2−x nanocomposites with biocompatible elements and remarkable stability are suitable for employing in the field of solar energy conversion.

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Synergy of Homojunction/Heterojunction to Enforce Photocatalytic Performance of BiSI/TiO₂ Quantum Dots/TiO_2–x Nanocomposites in NH₃ Generation

Pournemati,

Habibi-Yangjeh,

Khataee

2024

Ind. Eng. Chem. Res.

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Highly Efficient Electrospun Silver Decorated Graphene Oxide Nanocomposites on Poly(vinylidene fluoride) (PVDF@GO-Ag) Hybrid Membrane for Reduction of 4-Nitrophenol

Yang,

He,

Jin

et al. 2024

Molecules

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Graphene oxide-silver poly(vinylidene fluoride) membranes (PVDF@GO-Ag) were successfully synthesized by the electrospinning method, which exhibited a high catalytic activity using the hydrogenation of 4-nitrophenol (4-NP) as a model reaction in a batch reaction study. The hybrid membranes doped with 1 wt% GO and 2 wt% Ag (PVDF-1-2) exhibited the most desired performance for the catalytic reduction of 4-NP. Importantly, PVDF-1-2 exhibited excellent cycling stability in 10 catalytic cycle tests and was highly amenable to separation. This property effectively addresses the significant challenges associated with the practical application of nanocatalysts. Furthermore, density-functional theory (DFT) calculations have demonstrated that the GO-Ag nanocomposites exhibit the strongest adsorption capacity for 4-NP− when a specific ratio of GO and Ag is achieved, accompanied by the loading of Ag nanoclusters onto GO. Additionally, the study demonstrated that an increase in temperature significantly accelerated the reaction rate, in line with the van’t Hoff rule. This study provides an effective and environmentally friendly solution for the treatment of 4-NP in wastewater.

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Deciphering the mechanistic insights of 4-nitrophenol reduction catalyzed by a 1D–2D Bi₂S₃ nanostructured catalyst

Abstract: Exploring the reaction mechanism and the catalyst role for pollutant conversion to value-added products is vital for sustainable development. Herein, a polyvinylpyrrolidone-assisted liquid-phase reflux strategy was utilized to synthesize anisotropic...

Cited by 2 publications

References 84 publications

Synergy of Homojunction/Heterojunction to Enforce Photocatalytic Performance of BiSI/TiO₂ Quantum Dots/TiO_2–x Nanocomposites in NH₃ Generation

Synergy of Homojunction/Heterojunction to Enforce Photocatalytic Performance of BiSI/TiO₂ Quantum Dots/TiO_2–x Nanocomposites in NH₃ Generation

Highly Efficient Electrospun Silver Decorated Graphene Oxide Nanocomposites on Poly(vinylidene fluoride) (PVDF@GO-Ag) Hybrid Membrane for Reduction of 4-Nitrophenol

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Deciphering the mechanistic insights of 4-nitrophenol reduction catalyzed by a 1D–2D Bi2S3 nanostructured catalyst

Abstract: Exploring the reaction mechanism and the catalyst role for pollutant conversion to value-added products is vital for sustainable development. Herein, a polyvinylpyrrolidone-assisted liquid-phase reflux strategy was utilized to synthesize anisotropic...

Cited by 2 publications

References 84 publications

Synergy of Homojunction/Heterojunction to Enforce Photocatalytic Performance of BiSI/TiO2 Quantum Dots/TiO2–x Nanocomposites in NH3 Generation

Synergy of Homojunction/Heterojunction to Enforce Photocatalytic Performance of BiSI/TiO2 Quantum Dots/TiO2–x Nanocomposites in NH3 Generation

Highly Efficient Electrospun Silver Decorated Graphene Oxide Nanocomposites on Poly(vinylidene fluoride) (PVDF@GO-Ag) Hybrid Membrane for Reduction of 4-Nitrophenol

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Deciphering the mechanistic insights of 4-nitrophenol reduction catalyzed by a 1D–2D Bi₂S₃ nanostructured catalyst

Synergy of Homojunction/Heterojunction to Enforce Photocatalytic Performance of BiSI/TiO₂ Quantum Dots/TiO_2–x Nanocomposites in NH₃ Generation

Synergy of Homojunction/Heterojunction to Enforce Photocatalytic Performance of BiSI/TiO₂ Quantum Dots/TiO_2–x Nanocomposites in NH₃ Generation