Photocatalytic degradation of cyanide in wastewater using new generated nano-thin film photocatalyst

Pala, Ayşegül; Politi, Ruti Ruth; Kurşun, Güneş; Erol, Mustafa; Bakal, Fatma; Öner, Gülek; Çelik, Erdal

doi:10.1016/j.surfcoat.2014.12.032

Cited by 25 publications

(3 citation statements)

References 18 publications

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“…The kinetic curves indicate a small decrease in CNdegradation when OH * radicals are inhibited by t-BuOH, due to the fact that oxidation occurs primarily by direct electron transfer. Several researchers have associated the photocatalytic oxidation of CNon TiO 2 with a direct charge transfer process [39][40][41][42][43] . Nonetheless, it has also been reported that such photocatalytic oxidation could also take place through indirect mechanisms at the semiconductor/electrolyte interface.…”

Section: Photoelectrocatalytic Oxidation Of Cyanidementioning

confidence: 99%

N and F Codoped TiO2 Thin Films on Stainless Steel for Photoelectrocatalytic Removal of Cyanide Ions in Aqueous Solutions

et al. 2017

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N-F codoped TiO 2 films were immobilized on stainless steel sheets through a combined approach involving a dip-coating technique and a hydrothermal treatment, followed by calcination at 400°C in the presence of air. Photocatalyst characterization was conducted using XRD, Raman and UV-VIS spectroscopy as well as SEM. The films were tested in a three-electrode cell for the photoelectrocatalytic degradation of CN-containing compounds. The results showed that the increase in the degradation rate of CN-containing compounds is both influenced by a synergistic effect of the doping agents and strongly dependent on the concentration of CN-containing compounds in the solution. Nitrogen contributed to the enhanced photoactivity under visible light due to the generation of localized states within the band gap of TiO 2 , whereas the presence of fluoride improved the superficial properties of the film, which resulted in higher amounts of CN-containing compounds that were degraded by direct charge transfer through the photogenerated holes.

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Section: Photoelectrocatalytic Oxidation Of Cyanidementioning

confidence: 99%

N and F Codoped TiO2 Thin Films on Stainless Steel for Photoelectrocatalytic Removal of Cyanide Ions in Aqueous Solutions

et al. 2017

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“…A series of techniques have been performed to remove organic dyes from wastewater including photocatalytic degradation, biological treatments, membrane separation, adsorption techniques, etc. [6][7][8][9][10][11] However, these methods have some disadvantages, such as incomplete removal, high cost, time-consuming and continuous energy input, 12 and are difficult to be widely used in practice. Among these techniques, although photocatalytic degradation is feasible, it needs a special light source or a longer time.…”

Section: Introductionmentioning

confidence: 99%

In situ formation of gold nanoparticles@supramolecular hydrogels with ultra-fast catalytic reduction of dyes and excellent anti-bacterial properties

et al. 2023

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“…Photocatalytic degradation lags behind in complete degradation of CN content. [20] Hence, an alternative scheme is required for effective CN degradation. Nanotechnology has come up with materials that exhibit extra ordinary properties.…”

Section: Introductionmentioning

confidence: 99%

Functionalized Carbon Nanotube based Cyanide Detection and Degradation

2022

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Owing to the extraordinary characteristics Carbon Nanotubes exhibit, these have been employed for wide range of applications. The recognition of chemical contaminants is one such area of research which always involve advancement in concern to the environmental protection and public health. In this regard, Carbon nanotubes decorated with nickel nanoparticles (CNT@Ni) nano-hybrid has been fabricated and characterized with scanning electron microscopy, Transmission electron microscopy, energy dispersive X-Ray analysis, X-Ray Diffraction and Fourier transform infrared spectroscopy. Anion recognition studies were performed for CNT@Ni nano-hybrid, a significant response was observed for Cyanide ion (CN À ) detection and exhibited a detection limit of 7.2 nM. Further, detected CN À was electrochemically reduced to non-toxic OCN À in order to prevent the environment from its toxic effects while disposing off.

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Photocatalytic degradation of cyanide in wastewater using new generated nano-thin film photocatalyst

Cited by 25 publications

References 18 publications

N and F Codoped TiO2 Thin Films on Stainless Steel for Photoelectrocatalytic Removal of Cyanide Ions in Aqueous Solutions

N and F Codoped TiO2 Thin Films on Stainless Steel for Photoelectrocatalytic Removal of Cyanide Ions in Aqueous Solutions

In situ formation of gold nanoparticles@supramolecular hydrogels with ultra-fast catalytic reduction of dyes and excellent anti-bacterial properties

Functionalized Carbon Nanotube based Cyanide Detection and Degradation

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