A solution-route processed multicomponent Cu2ZnSn (S1-x Sex)4 nanocrystals: A potential low-cost photocatalyst

Semalti, Pooja; Sharma, Vikash; Sharma, Shailesh Narain

doi:10.1016/j.jclepro.2022.132750

Cited by 4 publications

(1 citation statement)

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“…Furthermore, exploiting photocatalytic reactions to degrade organic dye effluents is an alternative to several water remediation processes because it is economically feasible and can be carried out in mild conditions, resulting in carbon dioxide and water as the major side products. − Therefore, there is significant interest in developing photocatalysts that can utilize visible light to catalyze these reactions. As a result, a variety of oxides, sulfides, and chalcogenides, in the form of nanostructures and thin films, are extensively investigated as photocatalysts. − Nevertheless, the majority of reported photocatalyst nanostructures are synthesized by high-temperature approaches, namely, sol-combustion, hydro/solvothermal, coprecipitation, and pyrolysis. − Additionally, a preferred photocatalyst should be innocuous, reusable, and chemically inert. Thus, it is imperative to synthesize photocatalysts that can efficiently use visible light in mild reaction conditions .…”

Section: Introductionmentioning

confidence: 99%

Sodium Alginate–CdS Nanostructures: Reinforcing Chemoselectivity in Nitro-Organic Reduction and Dye Degradation through Photoinduced Electron Transfer

Dhruv,

Kori,

Das

2024

ACS Appl. Nano Mater.

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In the current socioeconomic environment, researchers are interested in using visible light for the exploration of chemical reactions. In this context, biopolymer-supported multifunctional metal sulfide composites with improved catalytic performance play a crucial role in chemical reactions. To address this issue, sodium alginate-templated cadmium sulfide-based photocatalysts are synthesized at a gel−liquid interface by altering the pH of the Na 2 S solution from 7.4 to 10 and 13. The X-ray diffractograms (XRDs) of the synthesized sodium alginate− cadmium sulfide (SA−CdS) illustrated the semicrystalline nature of the cadmium nanostructures. Field emission scanning electron microscopy (FE-SEM) is used to examine the surface morphology of the nanocomposites. The transmission electron microscopy (TEM) analysis reveals that the sodium alginate−cadmium sulfide (SA−CdS) particles exhibit spherical shapes with an average size of 4 nm. The diffuse reflectance spectroscopy (DRS) and Brunauer−Emmett−Teller (BET) analysis reveal the low band gap (∼2.4 eV) and enhanced surface area for SA−CdS synthesized at pH 13 of Na 2 S solution compared to pH 10 and 7.4, respectively. In contrast to the reported photocatalysts, the synthesized SA−CdS not only reduced the nitro-organic compounds under incoming irradiation but also reduced the chemoselectively deteriorated nitro compounds having vinyl functional groups. Additionally, the SA−CdS photocatalyst efficiently degraded organic rhodamine B (RhB) dye under visible light irradiation. Additionally, the essential function of electrons in reducing nitroaryl compounds is revealed, and a potential photocatalytic reaction mechanism using ammonium formate as a hole scavenger is also proposed. The synthesized SA−CdS catalyst demonstrates remarkable recyclability without any noticeable decrease in the amount of product obtained. These findings suggest that the developed SA−CdS catalyst has the potential to serve as a promising visible-light-driven photocatalyst for various organic reactions.

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Section: Introductionmentioning

confidence: 99%

Sodium Alginate–CdS Nanostructures: Reinforcing Chemoselectivity in Nitro-Organic Reduction and Dye Degradation through Photoinduced Electron Transfer

Dhruv,

Kori,

Das

2024

ACS Appl. Nano Mater.

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Kesterite Films Processed with Organic Solvents: Unveiling the Impact of Carbon‐Rich Fine‐Grain‐Layer Formation on Solar‐Cell Performance

Javed,

Donmez,

Jones

et al. 2024

Energy Tech

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Solution‐processed kesterite (copper zinc tin sulfide [CZTS]) solar cells attract significant attention owing to their low cost, ease of large‐scale production, and earth‐abundant elemental composition, which make these devices promising to fulfill the ever‐increasing demand of the photovoltaic (PV) industry. Compared to the performances of expensive vacuum‐based techniques, colloidal nanocrystal kesterite solar cells garner substantial interest due to their economical and rapid processing. Led by the hot‐injection method, organic solvent‐based techniques are widely adopted to realize CZTS nanocrystal inks. With organic solvents, ligand‐stabilized nanoparticles are formed leading to dispersive and homogenous kesterite inks. However, the presence of carbon‐rich ligands around the nanocrystal surface often leads to the formation of a fine‐grain layer that is rich in carbon content. The organic ligands decompose into amorphous carbon residues during a high‐temperature annealing process and hinder the grain growth process. The carbon‐rich fine‐grain (CRFG) layer generally poses a negative influence on the PV performance of the kesterite solar cell; however, few reports maintain their disposition about CRFG as innocuous. In this review study, a detailed discussion on CRFG is presented, aiming to understand the insights about its formation and impact on the device's performance.

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Fabrication of visible-light-driven photocatalysts based on Nd-doped Zn2SnO4 semiconductor and carbonous nanomaterials

Amani‐Ghadim

Arefi-Oskoui

Karimi

et al. 2023

Journal of Alloys and Compounds

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A solution-route processed multicomponent Cu2ZnSn (S1-x Sex)4 nanocrystals: A potential low-cost photocatalyst

Cited by 4 publications

References 44 publications

Sodium Alginate–CdS Nanostructures: Reinforcing Chemoselectivity in Nitro-Organic Reduction and Dye Degradation through Photoinduced Electron Transfer

Sodium Alginate–CdS Nanostructures: Reinforcing Chemoselectivity in Nitro-Organic Reduction and Dye Degradation through Photoinduced Electron Transfer

Kesterite Films Processed with Organic Solvents: Unveiling the Impact of Carbon‐Rich Fine‐Grain‐Layer Formation on Solar‐Cell Performance

Fabrication of visible-light-driven photocatalysts based on Nd-doped Zn2SnO4 semiconductor and carbonous nanomaterials

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