Silver nanoparticles as a cyanide colorimetric sensor in aqueous media

Hajizadeh, Salahaddin; Farhadi, Khalil; Forough, Mehrdad; Sabzi, Reza Emamali

doi:10.1039/c1ay05567d

Cited by 75 publications

(39 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1,2 Therefore, the recognition and sensing of the cationic and anionic analysts has attracted considerable attention as a significant goal of research programs. [3][4][5] Among the different methods for sensing cationic and anionic analysts, colorimetric sensors have attracted more attention, due to their simplicity, rapidity, precision and common availability of the basic equipment in laboratory and field research. [6][7][8][9][10][11] Furthermore, colorimetric methods are extremely attractive in the field of detection, because the read out is easy.…”

Section: Introductionmentioning

confidence: 99%

“…[3][4][5] Among the different methods for sensing cationic and anionic analysts, colorimetric sensors have attracted more attention, due to their simplicity, rapidity, precision and common availability of the basic equipment in laboratory and field research. [6][7][8][9][10][11] Furthermore, colorimetric methods are extremely attractive in the field of detection, because the read out is easy. It can be performed using the naked eye, offering advantages of simplicity and rapidity, along with the additional benefits of cost-effectiveness and no requirement of any sophisticated instrumentation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Colorimetric Disposable Paper Coated with ZnO@ZnS Core–Shell Nanoparticles for Detection of Copper Ions in Aqueous Solutions

Sadollahkhani

Hatamie

Nur

et al. 2014

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

In this study we have proposed a new nanoparticle-containing test paper sensor that could be used as an inexpensive, easy-to-use, portable, and highly selective sensor to detect Cu 2+ ions in aqueous solutions. This disposable paper sensor is based on ZnO@ZnS core shell nanoparticles. The core shell nanoparticles were synthesized using a chemical method and then they were used for coating the paper.The synthesis of the ZnO@ZnS core shell nanoparticles was performed at a temperature as low as 60 o C, and so far this is the lowest temperature for the synthesis of such core shell nanoparticles. The sensitivity of the paper sensor was investigated for different Cu 2+ ion concentrations in aqueous solutions and the results show a direct linear relation between the Cu 2+ ions concentration and the colour intensity of the paper sensor with a visual detection limit as low as 15 μM (~0.96 ppm). Testing the present paper sensor on real river turbulent water shows a maximum 5% relative error for determining the Cu 2+ ions concentration which confirms that the presented paper sensor can successfully be used efficiently for detection in complex solutions with high selectivity. Photographs of the paper sensor taken using a regular digital camera were transferred to a computer and analysed by ImageJ Photoshop software. This finding demonstrates the potential of the present disposable paper sensor for the development of a portable accurate and selective heavy metal detection technology.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Colorimetric Disposable Paper Coated with ZnO@ZnS Core–Shell Nanoparticles for Detection of Copper Ions in Aqueous Solutions

Sadollahkhani

Hatamie

Nur

et al. 2014

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…21 Recent works have demonstrated that the high surface energy vertices of Ag nanoprisms are readily degraded by halide ions, thiols, and acid. 22 Nevertheless, the BSA molecules were absorbed onto the surface of Ag nanoprisms and passivated the Ag nanoprisms surface to some extent, which can protect Ag nanoprisms from low concentration of FITC and the above halide ions (data not shown).…”

Section: Resultsmentioning

confidence: 99%

Preparation of a fluorescent silver nanoprism–dye complex for detection of hydrogen peroxide in milk

2015

View full text Add to dashboard Cite

show abstract

“…For that reason, it is essential to detect the amount of cyanide in drinking water, food, soil, living cells etc. This lead to the development of several methods for its detection including, spectrophotometry, potentiometry, polarography . The so far reported artificial anion sensors are associated with major limitations such as the complicated synthetic procedure, tedious purification methods and highly expensive as well as complicated steady state and time resolved fluorescence technique based recognition process followed by theoretical optimization .…”

Section: Introductionmentioning

confidence: 99%

A Schiff base colorimetric chemosensor for CN^‐ ion and its dioxidomolybdenum (VI) complexes: Evaluation of structural aspects and optoelectronic properties

Asha

Edappadikkunnummal

Kurup

2020

Applied Organom Chemis

View full text Add to dashboard Cite

Six new cis‐dioxidomolybdenum(VI) complexes featured with a tridentate ONO donor Schiff base derived from salicylidene‐2‐aminophenolato backbone have been synthesised and characterised by elemental analysis, spectroscopic techniques (like IR, UV‐vis and 1H‐NMR) and cyclic voltammetry. Suitable single crystals of the parent complex [MoO2L(MeOH)]2·H2O (1) was obtained by the slow evaporation of the mother liquor, whereas the crystals of the complexes 2‐6 were grown in coordinating solvents like ethanol, DMF, DMSO etc. and were characterised by single crystal X‐ray diffraction as monomers stabilised by the solvent molecules used for the recrystallization purpose. The structures of the complexes were further quantified using Hirshfeld surface analysis. The Schiff base acts as a colorimetric chemosensor for CN‐ ions in DMSO solution. The receptor‐CN‐ ion interaction and the sensing mechanism of the chemosensor were verified by colorimetric, UV‐vis, 1H‐NMR and FT‐IR spectroscopic studies. Hydroxyl moiety present in the receptor function as the binding site for cyanide ion thereby leading to its optical discrimination in presence of other anions by producing a visible colour change from colourless to yellow. Therefore the Schiff base sensor portrays estimable selectivity and sensitivity towards CN‐ ion. Additionally the Schiff base as well as the molybdenum complexes exhibit good third order non‐linear optical properties and optical power limiting when analysed by the Z‐scan technique.

show abstract

Silver nanoparticles as a cyanide colorimetric sensor in aqueous media

Cited by 75 publications

References 22 publications

Colorimetric Disposable Paper Coated with ZnO@ZnS Core–Shell Nanoparticles for Detection of Copper Ions in Aqueous Solutions

Colorimetric Disposable Paper Coated with ZnO@ZnS Core–Shell Nanoparticles for Detection of Copper Ions in Aqueous Solutions

Preparation of a fluorescent silver nanoprism–dye complex for detection of hydrogen peroxide in milk

A Schiff base colorimetric chemosensor for CN^‐ ion and its dioxidomolybdenum (VI) complexes: Evaluation of structural aspects and optoelectronic properties

Contact Info

Product

Resources

About

Silver nanoparticles as a cyanide colorimetric sensor in aqueous media

Cited by 75 publications

References 22 publications

Colorimetric Disposable Paper Coated with ZnO@ZnS Core–Shell Nanoparticles for Detection of Copper Ions in Aqueous Solutions

Colorimetric Disposable Paper Coated with ZnO@ZnS Core–Shell Nanoparticles for Detection of Copper Ions in Aqueous Solutions

Preparation of a fluorescent silver nanoprism–dye complex for detection of hydrogen peroxide in milk

A Schiff base colorimetric chemosensor for CN‐ ion and its dioxidomolybdenum (VI) complexes: Evaluation of structural aspects and optoelectronic properties

Contact Info

Product

Resources

About

A Schiff base colorimetric chemosensor for CN^‐ ion and its dioxidomolybdenum (VI) complexes: Evaluation of structural aspects and optoelectronic properties