Cadmium sulphide (CdS) nanoparticles: Preparation and characterization

Hadi, Iman H.; Khashan, Khawla S.; Sulaiman, Doaa

doi:10.1016/j.matpr.2020.12.828

Cited by 8 publications

(5 citation statements)

References 20 publications

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“…The X-ray diffraction profiles clearly demonstrate that the intensity of the (111) peak is higher than that of other crystalline phases, indicating that the CdS is cubic. 40,41 There are no additional identifiable peaks in the XRD patterns assigned to the amorphous polymeric SA.…”

Section: Resultsmentioning

confidence: 98%

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: Resultsmentioning

confidence: 98%

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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“…At that time, the precursor solution (zinc nitrate) was submerging the pre-seeded substrate (ITO)and bake for a few hours at 50 𝛐 C. After the growth of ZnO nanorods, samples were soaked in deionized (DI) water to expel any residuals and then dried. The ZnO NRs thickness, morphological structure, and angle proportion can be controlled by altering the response parameters like precursor concentration, pH value, temperature of growth, and time of growth [12] 2-CuO Nanoparticles:…”

Section: Materials Used 1-zno Nano Rod Preparationmentioning

confidence: 99%

“…Note that resistance reduces from millions of ohms in obscurity to as few as many hundred ohms in shining light. A straightforward test is to utilize an ohmmeter and observe the resistance change with light exerted [12]. Cds nanocrystals have prevalent optical and electronic properties due to their unfilled electronic orbitals.…”

Section: Introductionmentioning

confidence: 99%

ZnO/CuO/CdS Heterojunction Nanostructures as N-P-N for Optoelectronic Applications Effectiveness of Optoelectronic Devices

Abdul-Ameer

2024

Iraqi Journal of Science

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A simple chemical method for producing ZnO/ CuO/ CdS nanoparticles using a chemical route (SILAR) method has been utilized. XRD patterns show hexagonal structures for ZnO, spheres, and cubic-formed CuO/CdS nanoparticles. Nanoparticles showed a blue shift in their UV-VIS energy band edge with (3.7, 3, and 3.2) eV for ZnO, CuO, and CdS. The morphology of ZnO, CuO, and CdS nanoparticles is investigated using scanning electronic microscopy (SEM). The XRD pattern reveals that the crystallites size are 15–30 nm. Photoluminescence reveals a yellow-green (520 nm) region for ZnO, a blue (380 nm) region for CuO, and a red (440 nm) region for CdS. The CdS wideband gap restricts its application. In this manner, we combined ZnO, CdS, and CuO for the band gap design of the heterojunction and to get improved optoelectronic properties. Present results show that heterojunctions could be useful for long-term usage and effective photodiode applications.

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“…Direct band gap semiconductor has multiple applications in a variety of fields [6,7], including photo detectors [8], solar cells [9], photo catalysts [10], nonlinear optical materials [11], and antibacterial properties [12,13]. Sol-gel templates were one of the techniques used to create CdS nanoparticles [14].…”

Section: Introductionmentioning

confidence: 99%

SYNTHESIS AND CHARACTERIZATION OF CdS/CuAlO2/ITO NANO HETEREOSTRUCTURE NOVEL LED FOR OPTOELECTRONIC APPLICATIONS

Abdul-Ameer

2024

Momento

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Nano-heterostructures (NHs) are drawing attention due to their fascinating properties as materials for constructing nano-electronic devices. CdS and CuAlO2 were prepared using the co-precipitation method and deposited, respectively, on Indium Tin Oxide (ITO) substrate to study their characteristics and effectiveness for light-emitting diode (LED) applications and photodetectors. Investigations were made on the morphological, optical, and electrical characteristics. According to the X-ray diffraction pattern, CdS nanoparticles have a cubic phase structure and diffraction peaks at 26.3◦, 43.8◦, and 51.8◦. UV-visible optical studies were used to characterize the absorbance of CdS, CuAlO2, and CdS/CuAlO2/ITO with redshift around 400 nm for the nanoparticles. Using the Tauc plot, the band gap energy of the prepared heterostructure showed a value of 3.1eV. The Scanning Electron Microscopy (FESEM) images show homogeneous morphology with little agglomeration. I-V characterization reveals good properties with high forward current power. CdS/CuAlO2/ITO shows high responsivity of 0.45 A/W, which indicates a straightforward, low-cost, and effective fabrication technique for the fabrication of light-emitting diodes and a promising heterostructure for manufacturing photo detectors.

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Cadmium sulphide (CdS) nanoparticles: Preparation and characterization

Cited by 8 publications

References 20 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

ZnO/CuO/CdS Heterojunction Nanostructures as N-P-N for Optoelectronic Applications Effectiveness of Optoelectronic Devices

SYNTHESIS AND CHARACTERIZATION OF CdS/CuAlO2/ITO NANO HETEREOSTRUCTURE NOVEL LED FOR OPTOELECTRONIC APPLICATIONS

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