A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 176

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3122
Function: getPubMedXML

File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

A comparative study of ZnAl2O4 nanoparticles synthesized from different aluminum salts for use as fluorescence materials. | LitMetric

AI Article Synopsis

  • Three different aluminum salts were used to create ZnAl2O4 nanoparticles through a modified gel method involving citric acid, allowing researchers to study the effects on their properties.
  • The results indicated that varying the aluminum salt source significantly influences the nanoparticles' morphology, phase purity, and optical characteristics, including an increase in the energy bandgap with decreasing particle size.
  • ZnAl2O4 particles made from aluminum nitrate showed the highest fluorescence intensity, highlighting how the choice of aluminum salt affects both emission properties and defect characteristics within the nanoparticles.

Article Abstract

Three ZnAl2O4 samples were prepared via a modified polyacrylamide gel method using a citric acid solution with different aluminum salt starting materials, including AlCl3 ∙ 6H2O, Al2(SO4)3 ∙ 18H2O, and Al(NO3)3 ∙ 9H2O under identical conditions. The influence of different aluminum salts on the morphologies, phase purity, and optical and fluorescence properties of the as-prepared ZnAl2O4 nanoparticles were studied. The experimental results demonstrate that the phase purity, particle size, morphology, and optical and fluorescence properties of ZnAl2O4 nanoparticles can be manipulated by the use of different aluminum salts as starting materials. The energy bandgap (Eg) values of ZnAl2O4 nanoparticles increase with a decrease in particle size. The fluorescence spectra show that a major blue emission band around 400 nm and two weaker side bands located at 410 and 445 nm are observed when the excitation wavelength is 325 nm. The ZnAl2O4 nanoparticles prepared from Al(NO3)3 ∙ 9H2O exhibit the largest emission intensity among the three ZnAl2O4 samples, followed in turn by the ZnAl2O4 nanoparticles prepared from Al2(SO4)3 ∙ 18H2O and AlCl3∙6H2O. These differences are attributed to combinational changes in Eg and the defect types of the ZnAl2O4 nanoparticles.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4523878PMC
http://dx.doi.org/10.1038/srep12849DOI Listing

Publication Analysis

Top Keywords

znal2o4 nanoparticles
28
aluminum salts
12
znal2o4
9
three znal2o4
8
znal2o4 samples
8
starting materials
8
al2so43 ∙
8
∙ 18h2o
8
alno33 ∙
8
∙ 9h2o
8

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!