Photocatalytic degradation of phenol and its derivatives over ZnFe layered double hydroxide

Bharali, Dipshikha; Saikia, Sudakhina; Devi, Rajlakshmi; Choudary, B. M.; Gour, Nand Kishor; Deka, Ramesh Chandra

doi:10.1016/j.jphotochem.2022.114509

Cited by 12 publications

(2 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The removal of phenol pollutants has become a key requirement in tackling environmental problems, and photocatalytic systems have been extensively researched for the removal of contaminants [7]. In the photocatalytic process, light energy is required for the excitation of the photocatalyst to generate charged carriers for the degradation process [8]. Electrons or holes initiate the process of radical species formation in the form of superoxide radicals (•O 2− ).…”

Section: ■ Introductionmentioning

confidence: 99%

Photodegradation of Phenol under Visible Light Irradiation Using Cu-N-codoped ZrTiO<sub>4</sub> Composite as a High-Performance Photocatalyst

Fauzi,

Kurniawan,

Sudiono

et al. 2024

Indones. J. Chem.

View full text Add to dashboard Cite

Codoping of nitrogen and copper into zirconium titanate composite (Cu-N-codoped ZrTiO4) was carried out through a sol-gel process. This study aimed to investigate the effect of copper and nitrogen dopants on the photocatalytic activity of ZrTiO4 composite in degrading phenol. To prepare the composite, an aqueous suspension of zirconia (ZrO2) alongside a fixed amount of urea and various amount of copper sulfate was added dropwise into diluted titanium(IV) tetraisopropoxide (TTIP) in ethanol. The composites were calcined at temperatures of 500, 700, and 900 °C. Fourier-transform infrared spectrophotometry (FTIR), X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray (SEM-EDX) mapping, and specular reflectance UV-visible spectrophotometry (SR UV-vis) were used for their characterization of composite. The photocatalytic activity was evaluated by adding the composite into a 10 mg L−1 phenol solution for various irradiation time spans. The remaining concentration of phenol solution was determined by absorption at 269 nm. Cu-N-codoped ZrTiO4 composite containing 5% Cu calcined at 500 °C demonstrated the highest observed rate constant and a significant band gap decrease from 3.13 to 2.68 eV.

show abstract

Section: ■ Introductionmentioning

confidence: 99%

Photodegradation of Phenol under Visible Light Irradiation Using Cu-N-codoped ZrTiO<sub>4</sub> Composite as a High-Performance Photocatalyst

Fauzi,

Kurniawan,

Sudiono

et al. 2024

Indones. J. Chem.

View full text Add to dashboard Cite

show abstract

“…Nevertheless, stability of structure of phenolic pollutants poses a challenge, rendering the application of these decomposition approaches not only lengthy, expensive as well as prone towards byproduct formation. 15 In recent decades, adsorption treatment has emerged as a prominent method among previous approaches due to its simplicity of operation and cost-effectiveness. [16][17][18] Monolayer materials, characterized by numerous operative sites and greater region, are considered excellent adsorptive material in favor of water medication.…”

Section: Introductionmentioning

confidence: 99%