Titanium Dioxide/Copper/Carbon Composites for the Photocatalytic Degradation of Phenol

Coronel, Stalin; Sandoval‐Pauker, Christian; Jentzsch, Paul Vargas; Torre, Ernesto de la; Endara, Diana; Bisesti, Florinella Muñoz

doi:10.23939/chcht14.02.161

Cited by 5 publications

(3 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where α is the absorption coefficient, A is the constant. 20 In addition, the electrons lifted in the oxygen vacancies can be interacted with adjacent Ti 4+ to produce the Ti 3+ defect species. As a result, shallow donor levels for Ti +3 defect are formed below the conduction band, which also attributes to absorption of visible light.…”

Section: Uv-vis Diffused Reflectance Spectramentioning

confidence: 99%

Hydrated Properties of Composite Systems for Water and Soil Remediation on the Basis of Nanosilicas and Yeast Cells

Krupska¹,

Klymenko²,

Holovan³

et al. 2022

ChChT

View full text Add to dashboard Cite

The method of low-temperature 1Н NMR spectroscopy is applied to study the hydrated properties of bio-nanocomposite created on the basis of the mixture of hydrophobic and hydrophilic silicas (АМ1-300 and А 300 with ratio of 1:1), water, n-decane, and yeast cells. The produced mixture of nanosilicas contributes to mitosis and cell growth. It is shown that the cause of activation of their vital processes may be related to the formation of the system of water polyassociates, which change the conditions of substance transport through the cell membranes, on the phase boundaries of solid particles and aqueous medium.

show abstract

Section: Uv-vis Diffused Reflectance Spectramentioning

confidence: 99%

Hydrated Properties of Composite Systems for Water and Soil Remediation on the Basis of Nanosilicas and Yeast Cells

Krupska¹,

Klymenko²,

Holovan³

et al. 2022

ChChT

View full text Add to dashboard Cite

show abstract

“…7 A few studies indicated that solar light triggering the photodegradation of plastic materials, possibly leading to structural defects, 8 surface oxidation, 9 generation of persistent free radicals 10 and nanoparticles. 11 Compared with many studies concerned with the photodegradation of environmental pollutants, 12,13 few studies were performed on the degradation of plastics, for instance, polyethylene plastics biologic-photocatalytic degradation by Zalerion maritimum 14 and nanomaterials like N-doped TiO 2 , [15][16][17][18][19] titania nanotubes, 20 Pt/ZnO, 21 ZnO. 22 In this paper, MgAl 2 O 4 nanoparticles were synthesized via solid-state method and were used as catalysts for the photodegradation of polyethylene plastics under UV irradiation.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Polyethylene Plastics Using MgAl2O4 Nanoparticles Prepared by Solid State Method

Affat,

Mohammed

2023

ChChT

View full text Add to dashboard Cite

In this study, MgAl2O4 nanoparticles with different calcination times were synthesized for photocatalytic applications. Different analyses techniques such as XRD, SEM, EDX, UV-visible, and FTIR were performed to investigate the structural, chemical, optical, and mor-phological properties of the synthesized nanoparticles. XRD analysis revealed the formation MgAl2O4 spinel structure. UV-Visible measurements indicate that MgAl2O4-2 nanoparticles had a narrower energy gap compared to MgAl2O4-1 and MgAl2O4-3. Results of SEM analysis revealed that the synthesized MgAl2O4 nanoparticles consist of small aggregated particles with (40-60 nm) particles size. EDX measurements con-firmed the formation of MgAl2O4 nanoparticles without any impurities. The photocatalytic performance was evaluated by the photodegradation of polyethylene plastics using MgAl2O4 nanoparticles under UV irradiation. The FT-IR measurements before and after the degradation of polyethylene plastics confirm the formation of new functional groups as a result of photodegradation processes.

show abstract

“…Another attractive type of process is based on the photocatalytic generation of •OH with ultraviolet and visible radiation. In this sense, a great variety of solid semiconductors (suspended or supported) were proposed for water and wastewater treatment by heterogeneous photocatalysis [31][32][33][34][35][36]. To evaluate the efficiency of AOPs, the decrease in the concentration of a target pollutant, the chemical oxygen demand (COD) and the total organic carbon (TOC) are generally measured.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Advanced Oxidation Processes Using Zebrafish in a Non-Forced Exposure System: A Proof of Concept

et al. 2021

Self Cite

View full text Add to dashboard Cite

Water bodies and aquatic ecosystems are threatened by discharges of industrial waters. Ecotoxicological effects of components occurring in untreated and treated wastewaters are often not considered. The use of a linear, multi-compartmented, non-forced, static system constructed with PET bottles is proposed for the quality assessment of treated waters, to deal with such limitations. Two synthetic waters, one simulating wastewater from the textile industry and the other one simulating wastewater from the cassava starch industry, were prepared and treated by homogeneous Fenton process and heterogeneous photocatalysis, respectively. Untreated and treated synthetic waters and their dilutions were placed into compartments of the non-forced exposure system, in which zebrafish (Danio rerio), the indicator organism, could select the environment of its preference. Basic physical–chemical and chemical parameters of untreated and treated synthetic waters were measured. The preference and avoidance responses allowed verification of whether or not the quality of the water was improved due to the treatment. The results of these assays can be a complement to conventional parameters of water quality.

show abstract

Titanium Dioxide/Copper/Carbon Composites for the Photocatalytic Degradation of Phenol

Cited by 5 publications

References 34 publications

Hydrated Properties of Composite Systems for Water and Soil Remediation on the Basis of Nanosilicas and Yeast Cells

Hydrated Properties of Composite Systems for Water and Soil Remediation on the Basis of Nanosilicas and Yeast Cells

Photocatalytic Degradation of Polyethylene Plastics Using MgAl2O4 Nanoparticles Prepared by Solid State Method

Assessment of Advanced Oxidation Processes Using Zebrafish in a Non-Forced Exposure System: A Proof of Concept

Contact Info

Product

Resources

About