Solvent controlled synthesis of CaO-MgO nanocomposites and their application in the photodegradation of organic pollutants of industrial waste

Muhammad Shahid, Muhammad Akhyar Farrukh, Ali Umar Akrajas, Muhammad Khaleeq-Ur-Rahman

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Conventional heating method and hydrothermal method were used for the synthesis of CaO nanoparticles and CaO/MgO nanocomposites under solvent control conditions. Ca(NO3)2 and Mg(NO3)2 were used as precursors, amyl alcohol as surface directing agent and NaOH as source of OH-. Different samples of CaO were prepared by conventional heating method in order to investigate the effect of calcination temperature and stirring time. Similarly two different kinds of sets of CaO as well as of CaO/MgO were synthesized under hydrothermal conditions for the investigation of effect of solvent and temperature on catalytic efficiency. Characterizations of these samples were carried out by Powder X-ray Diffractions (XRD), Thermo Gravimetric Analysis (TGA), Field Emission Scanning Electron Microscope (FESEM) Energy dispersive X-ray (EDX) and Fourier Transformed Infrared spectroscopy (FTIR). The synthesized samples of CaO and CaO/MgO were used to degrade methylene blue under UV-Visible conditions, which is an organic pollutant of waste from industries and causing serious health problems. First order data for degradation for methylene blue at λmax = 665 nm was used to quantify the degradation. Effect of solvent was found to be prominent in all samples. Similarly effect of temperature variation was also pronounced on catalytic efficiency as indicated by value of k.

Original languageEnglish
Pages (from-to)836-844
Number of pages9
JournalRussian Journal of Physical Chemistry A
Volume88
Issue number5
DOIs
Publication statusPublished - 2014

Fingerprint

industrial wastes
Industrial Waste
Organic pollutants
Photodegradation
contaminants
Nanocomposites
nanocomposites
Methylene Blue
methylene blue
synthesis
Pentanols
Heating
Degradation
Medical problems
degradation
Field emission
Calcination
X ray powder diffraction
Temperature
heating

Keywords

  • kinetics
  • metal oxides
  • nanocomposites
  • photocatalysts
  • pollutants
  • solvent

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Solvent controlled synthesis of CaO-MgO nanocomposites and their application in the photodegradation of organic pollutants of industrial waste. / Shahid, Muhammad; Farrukh, Muhammad Akhyar; Akrajas, Ali Umar; Khaleeq-Ur-Rahman, Muhammad.

In: Russian Journal of Physical Chemistry A, Vol. 88, No. 5, 2014, p. 836-844.

Research output: Contribution to journalArticle

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