Controllable Synthesis of Silver Nanoparticles Using Citrate as Complexing Agent: Characterization of Nanoparticles and Effect of pH on Size and Crystallinity
- 1. University of Isfahan, Engineering Research Center, Chemical Processes Research Department, Isfahan (Iran, Islamic Republic of)
- 2. University of Isfahan, Faculty of Science, Department of Physics, Isfahan (Iran, Islamic Republic of)
- 3. University of Isfahan, Faculty of Advanced Sciences and Technologies, Department of Biotechnology, Isfahan (Iran, Islamic Republic of)
Description
A method for the controllable synthesis of silver nanoparticles based on a complexing agent method was developed. Citric acid was used as a complexing agent. The effect of pH (1.6 to 5.17) on the size and net height (as obtained from XRD analyses) of silver nanoparticles was investigated. The nanoparticles (10 to 40 nm) were characterized using XRD, TEM, SEM, EDX, UV-Vis spectroscopy and TG/DTG instrument. It was found that pH has a significant influence on both size and crystallinity of the nanoparticles. This is due to the effect of pH on the distribution of citrate ion species which in turn affects the size and crystallinity of the nanoparticles. Increasing the pH value enhances the percentage of [citrate3-] ion species which allows lower size and higher crystallinity of the nanoparticles. Thus, we were able to develop a method for the controllable synthesis of nanoparticles based on the pH.
Availability note (English)
Available from Atomic Energy Organization of IranAdditional details
Publishing Information
- Journal Title
- Iranian Journal of Chemistry and Chemical Engineering
- Journal Volume
- 31
- Journal Issue
- no.4
- Journal Page Range
- p. 21-28
- ISSN
- 1021-9986
INIS
- Country of Publication
- Iran, Islamic Republic of
- Country of Input or Organization
- Iran, Islamic Republic of
- INIS RN
- 44073446
- Subject category
- S77: NANOSCIENCE AND NANOTECHNOLOGY;
- Descriptors DEI
- CHELATING AGENTS; CITRATES; CITRIC ACID; CRYSTALLIZATION; NANOSTRUCTURES; PARTICLE SIZE; PH VALUE; SCANNING ELECTRON MICROSCOPY; SILVER; SYNTHESIS; THERMAL GRAVIMETRIC ANALYSIS; TRANSMISSION ELECTRON MICROSCOPY; ULTRAVIOLET SPECTRA; X-RAY DIFFRACTION
- Descriptors DEC
- CARBOXYLIC ACID SALTS; CARBOXYLIC ACIDS; CHEMICAL ANALYSIS; COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; ELEMENTS; GRAVIMETRIC ANALYSIS; HYDROXY ACIDS; METALS; MICROSCOPY; ORGANIC ACIDS; ORGANIC COMPOUNDS; PHASE TRANSFORMATIONS; QUANTITATIVE CHEMICAL ANALYSIS; SCATTERING; SIZE; SPECTRA; THERMAL ANALYSIS; TRANSITION ELEMENTS