Facet-Dependent Photoinduced Transformation of Cadmium Sulfide (CdS) Nanoparticles

2021 ◽  
Author(s):  
Meiying Huang ◽  
Cun Liu ◽  
Peixin Cui ◽  
Tongliang Wu ◽  
Xionghan Feng ◽  
...  
Keyword(s):  
Cadmium Sulfide ◽  
Cds Nanoparticles ◽  
Photoinduced Transformation

A Simple Hydrothermal Synthesis of Cadmium Sulfide Wrapped on Graphene Nanocomposite for Supercapacitor Applications

2021 ◽  
Vol 21 (12) ◽  
pp. 5835-5845
Author(s):  
Ranjith Balu ◽  
Arivuoli Dakshanamoorthy
Keyword(s):  
Hydrothermal Synthesis ◽  
Specific Surface ◽  
Cadmium Sulfide ◽  
Specific Capacitance ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Current Density ◽  
Specific Capacity ◽  
Cds Nanoparticles ◽  
Electrochemical Characteristics

Supercapacitor with high specific capacity is desirable for various energy storage and high powerdensity applications. Though Graphene has been the preferred material for high current density, nanocomposites have been attempted to increase the specific capacitance. Hydrothermal synthesis of cadmium sulfide/graphene (CdS/G) nanocomposite with CdS nanoparticles anchored/decorated over the graphene sheets is reported. The structural studies reveal the hexagonal phase of the prepared materials. The specific surface area (BET) and porosity is found to increase upon nanocomposite formation. The electrochemical characteristics such as cyclic voltammetry (CV), GCD and EIS of the CdS/G nanocomposite have been investigated. The capacitance of CdS/G nanocomposite almost doubled to 248 Fg−1 indicating the enhanced performance of the nanocomposite system and in addition it also showed excellent cycling stability of 74.8 percent after 1000 cycles. The supercapacitor investigated retained the initial energy density after charge-discharge, at 0.5 A/g for 1000 cycles. The graphene nanosheets increased the specific surface area and interfacial electron transfer of the composite material. It enhances the specific capacitance and cyclic stability of the supercapacitor device.

Cadmium Sulfide and Zinc Sulfide Nanostructures Formed by Electrophoretic Deposition

2012 ◽  
Vol 507 ◽  
pp. 101-105 ◽  
Author(s):  
Alejandro Vázquez ◽  
Israel López ◽  
Idalia Gómez
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Cadmium Sulfide ◽  
Zinc Sulfide ◽  
Electrophoretic Deposition ◽  
Cds Nanoparticles ◽  
One Dimensional ◽  
Cds Thin Films ◽  
The One ◽  
One Dimensional Nanostructures

Cadmium sulfide (CdS) and zinc sulfide (ZnS) nanostructures were formed by means of electrophoretic deposition of nanoparticles with mean diameter of 6 nm and 20 nm, respectively. Nanoparticles were prepared by a microwave assisted synthesis in aqueous dispersion and electrophoretically deposited on aluminum plates. CdS thin films and ZnS one-dimensional nanostructures were grown on the negative electrodes after 24 hours of electrophoretic deposition at direct current voltage. CdS and ZnS nanostructures were characterized by means of scanning electron (SEM) and atomic force (AFM) microscopies analysis. CdS thin films homogeneity can be tunable varying the strength of the applied electric field. Deposition at low electric field produces thin films with particles aggregates, whereas deposition at relative high electric field produces smoothed thin films. The one-dimensional nanostructure size can be also controlled by the electric field strength. Two different mechanisms are considered in order to describe the formation of the nanostructures: lyosphere distortion and thinning and subsequent dipole-dipole interactions phenomena are proposed as a possible mechanism of the one-dimensional nanostructures, and a mechanism considering pre-deposition interactions of the CdS nanoparticles is proposed for the CdS thin films formation.

scholarly journals Histidine Decorated Nanoparticles of CdS for Highly Efficient H2 Production via Water Splitting

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3738
Author(s):  
Fumiya Tojo ◽  
Manabu Ishizaki ◽  
Shigeru Kubota ◽  
Masato Kurihara ◽  
Fumihiko Hirose ◽  
...  
Keyword(s):  
Cadmium Sulfide ◽  
Water Splitting ◽  
Solvothermal Method ◽  
H2 Production ◽  
Sem Analysis ◽  
Cds Nanoparticles ◽  
H2 Evolution ◽  
X Ray Diffraction ◽  
Hexagonal Wurtzite Crystal Structure ◽  
Xrd Patterns

Pure cadmium sulfide and histidine decorated cadmium sulfide nanocomposites are prepared by the hydrothermal or solvothermal method. Scanning electron microscopy (SEM) analysis shows that the particle sizes of pure cadmium sulfide (pu/CdS) and histidine decorated cadmium sulfide prepared by the hydrothermal method (hi/CdS) range from 0.75 to 3.0 μm. However, when a solvothermal method is used, the particle size of histidine decorated cadmium sulfide (so/CdS) ranges from 50 to 300 nm. X-ray diffraction (XRD) patterns show that all samples (pu/CdS, hi/CdS and so/CdS) have a hexagonal wurtzite crystal structure but so/CdS has a poor crystallinity compared to the others. The as-prepared samples are applied to photocatalytic hydrogen production via water splitting and the results show that the highest H2 evolution rate for pu/CdS and hi/CdS are 1250 and 1950 μmol·g−1·h−1, respectively. On the other hand, the so/CdS sample has a rate of 6020 μmol·g−1·h−1, which is about five times higher than that of the pu/CdS sample. The increased specific surface area of so/CdS nanoparticles and effective charge separation by histidine molecules are attributed to the improved H2 evolution.

Photoelectrochemical properties of Ti-doped hematite nanosheet arrays decorated with CdS nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (78) ◽  
pp. 74234-74240 ◽  
Author(s):  
Xin Xie ◽  
Kui Li ◽  
Wei-De Zhang
Keyword(s):  
Visible Light ◽  
Cadmium Sulfide ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Cds Nanoparticles ◽  
Photoelectrochemical Properties ◽  
Cadmium Sulfide Nanoparticles ◽  
Photoelectrochemical Response ◽  
Nanosheet Arrays ◽  
Vertically Aligned

A photoanode comprised of vertically aligned Ti-doped hematite nanosheet arrays decorated with cadmium sulfide nanoparticles was fabricated. The Ti-Fe2O3/CdS electrode shows high photoelectrochemical response under visible light irradiation.

Hybrid photocatalysts using graphitic carbon nitride/cadmium sulfide/reduced graphene oxide (g-C3N4/CdS/RGO) for superior photodegradation of organic pollutants under UV and visible light

2014 ◽  
Vol 43 (33) ◽  
pp. 12514-12527 ◽  
Author(s):  
Rajendra C. Pawar ◽  
Varsha Khare ◽  
Caroline Sunyong Lee
Keyword(s):  
Graphene Oxide ◽  
Electron Transport ◽  
Visible Light ◽  
Cadmium Sulfide ◽  
Reduced Graphene Oxide ◽  
Organic Pollutants ◽  
Carbon Nitride ◽  
Graphitic Carbon Nitride ◽  
Cds Nanoparticles ◽  
Reduced Graphene

Schematic of the electron transport from g-C3N4 to the CdS nanoparticles and RGO sheets during RhB photodegradation.

BLUE-GREEN LUMINESCENCE OF CHEMICALLY SYNTHESIZED MWCNT/CdS NANOHYBRID STRUCTURE

2011 ◽  
Vol 10 (01n02) ◽  
pp. 223-226
Author(s):  
RIMA PAUL ◽  
P. KUMBHAKAR ◽  
A. K. MITRA
Keyword(s):  
Cadmium Sulfide ◽  
Optical Sensors ◽  
Hybrid Structure ◽  
Cds Nanoparticles ◽  
X Ray Diffraction ◽  
Multiwalled Carbon ◽  
Transmission Electron ◽  
Chemical Technique ◽  
Wet Chemical Technique ◽  
Average Size

A simple inexpensive wet chemical technique at room temperature to prepare hybrid structure of multiwalled carbon nanotubes (MWCNT) and cadmium sulfide ( CdS ) nanoparticles has been reported in this paper. Cadmium sulfide nanocrystals of average size 5 nm have been synthesized and attached with the surfaces of MWCNTs. The hybrid material is characterized by high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and Raman spectroscopy. Interesting optical properties of the composite are revealed through UV–visible and photoluminescence (PL) spectroscopy. Significant blue-green PL emission covering a region from 450–600 nm wavelength has been observed when excited by UV radiation of 220–240 nm wavelength. Sharp emission peak has been obtained and this may find wide applications in optical sensors and optoelectronic devices.

Preparation of Indium-Cadmium Sulfide Nanoparticles with Diverse Morphologies: Photocatalytic and Cytotoxicity Study

2021 ◽  
Author(s):  
Sarah Ameen Almofty ◽  
Muhammad Nawaz ◽  
Sultan Akhtar ◽  
Faiza Qureshi ◽  
Veeranoot Nissapatron
Keyword(s):  
Electron Microscope ◽  
Cadmium Sulfide ◽  
Cell Line ◽  
Cancer Cell Line ◽  
Tumor Cell Line ◽  
Human Colon ◽  
Cds Nanoparticles ◽  
Hydrothermal Route ◽  
Cytotoxicity Activity ◽  
Average Size

This paper reports the synthesis, photocatalytic and cytotoxicity potential of indium doped cadmium sulfide (In2S3-CdS) nanoparticles prepared by solvothermal (product a) and hydrothermal routes (product b). In2S3-CdS nanoparticles obtained by solvothermal route (product a) indicated spherical morphology while product b obtained by hydrothermal route showed hexagonal morphology with average size 100 nm. In2S3-CdS nanoparticles was identified and characterized by X-ray diffraction, scanning electron microscope, transmission electron microscope and UV-vis spectrophotometer, whereas the surface area of In2S3-CdS nanoparticles was studied by BET analyzer. The as obtained In2S3-CdS nanoparticles (product a and b) were found to be efficient photocatalysts for the degradation of rhodamine B. The In2S3-CdS also revealed more cytotoxicity activity against HCT 116 (Human colon colorectal tumor) cell line as compared with MCF-7 (Breast cancer cell line). Our results indicate that In2S3-CdS is good photocatalyst. This method can also be employed to design other semiconductors with applications not only in the field of photocatalysis but other fields as well.

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