Highly Efficient Photocatalytic Hydrogen Production of Flower-like Cadmium Sulfide Decorated by Histidine

Morphology-controlled synthesis of CdS can significantly enhance the efficiency of its photocatalytic hydrogen production. In this study, a novel three-dimensional (3D) flower-like CdS is synthesized via a facile template-free hydrothermal process using Cd(NO 3 ) 2 •4H 2 O and thiourea as precursors...

Full description

Saved in:
Bibliographic Details
Published in:Scientific reports 2015-09, Vol.5 (1), p.13593-13593, Article 13593
Main Authors: Wang, Qizhao, Lian, Juhong, Li, Jiajia, Wang, Rongfang, Huang, Haohao, Su, Bitao, Lei, Ziqiang
Format: Article
Language:English
Subjects:
639/301/299/890
639/638/224/909
Adsorption
Cadmium
Cadmium Compounds - chemistry
Cadmium Compounds - radiation effects
Cadmium sulfide
Catalysis
Chelating agents
Crystals
Flowers
Histidine
Histidine - chemistry
Histidine - radiation effects
Humanities and Social Sciences
Hydrogen
Hydrogen - chemistry
Hydrogen - isolation & purification
Hydrogen production
Imidazole
Irradiation
Light
Materials Testing
Metal Nanoparticles - chemistry
Metal Nanoparticles - radiation effects
Metal Nanoparticles - ultrastructure
Morphology
multidisciplinary
Nanoparticles
Particle Size
Photocatalysis
Photochemistry - methods
Radiation
Radiation Dosage
Science
Sulfides
Sulfides - chemistry
Sulfides - radiation effects
Thiourea
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Morphology-controlled synthesis of CdS can significantly enhance the efficiency of its photocatalytic hydrogen production. In this study, a novel three-dimensional (3D) flower-like CdS is synthesized via a facile template-free hydrothermal process using Cd(NO 3 ) 2 •4H 2 O and thiourea as precursors and L-Histidine as a chelating agent. The morphology, crystal phase and photoelectrochemical performance of the flower-like CdS and pure CdS nanocrystals are carefully investigated via various characterizations. Superior photocatalytic activity relative to that of pure CdS is observed on the flower-like CdS photocatalyst under visible light irradiation, which is nearly 13 times of pure CdS. On the basis of the results from SEM studies and our analysis, a growth mechanism of flower-like CdS is proposed by capturing the shape evolution. The imidazole ring of L-Histidine captures the Cd ions from the solution and prevents the growth of the CdS nanoparticles. Furthermore, the photocatalytic contrast experiments illustrate that the as-synthesized flower-like CdS with L-Histidine is more stable than CdS without L-Histidine in the hydrogen generation.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep13593