Studying the photocatalytic oxidation of hydroxybenzene in aquatic medium on the photocatalizers SnO2, ZnO, TiO2
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 5, Issue 6
Abstract
This paper reports results of research into photocatalytic activity of oxides SnO<sub>2</sub>, ZnO, TiO<sub>2 </sub>in the process of hydroxybenzene degradation in an aqueous medium with the separately considered properties of the allotrope modifications of titanium oxide (IV): anatase and rutile. The relationship has been substantiated between a decrease in the value for the width of the restricted area and an increase in the photocatalytic activity of the examined oxides. The effect has been established of the organization of agitation on an increase in the degree of hydroxybenzene degradation in an aqueous medium, which is 10‒15 % on average. We have studied the influence of ratio of anatase to rutile in a photocatalyst on the hydroxybenzene degradation efficiency. It has been shown that the results obtained in the course of the study are consistent with data from the scientific literature, while opening up additional possibilities to increase the degree of hydroxybenzene oxidation in a joint application of anatase and rutile. It was established that the greatest degree of oxidation with and without agitation at an irradiation time of 60 minutes can be achieved at the content ratio of anatase to rutile of 75/25 % and is 23 % and 37 %, respectively. The use of such a composition makes it possible to increase the degree of hydroxybenzene oxidation in an aqueous medium by 11‒18 %, which is 1.5‒1.9 times larger in comparison with pure rutile and anatase. The results obtained led to the conclusion on that in order to reduce the time required to achieve the maximal indicators for the process of hydroxybenzene degradation, it is necessary to increase the ratio of the irradiated surface to the height of the device and to increase the Re number of the agitation process. Based on the obtained experimental data, we have established the optimum composition of a photocatalyst, which makes it possible to reach the maximal degree of hydroxybenzene recovery from solution
Authors and Affiliations
Dmytro Deineka, Oleksandr Kobziev, Svitlana Avina, Viktoriya Deyneka, Vitaliy Sobina
Keywords
Related Articles
- EP ID EP528191
- DOI 10.15587/1729-4061.2018.145198
- Views 58
- Downloads 0
Analysis of possibilities for improving energy indicators of induction electric motors for propulsion complexes of autonomous floating vehicles
<p>This study proposes additional possibilities to improve, at minimal efforts, a number of technical-economic indicators of three-phase standard industrial induction motors (IM). We suggest that such engines should be u...
Development of the interacting agents behavior scenario in the cyber security system
The results of modeling and analysis of scenarios of the behavior of interacting agents in conditions of cyber conflict are presented. General approaches to the development of a scenario of the behavior of antagonistic a...
Method for forming the portfolio of projects to reduce losses in electric networks based on the lean approach and a feeder-to-feeder analysis
<p>This research aims to develop an approach for forming the portfolio of projects for reducing losses in distributive electric networks. The purpose of this paper is to substantiate the selection of projects for reducin...
Substantiation of the mechanism of interaction between the carbohydrates of ryewheat flour and nanoparticles of the polyfunctional food additive "Magnetofооd"
<p class="a">Moisture-retaining capacity (MRC) is one of the most important functional-technological properties. The food additive "Magnetofood" produces a comprehensive effect, including MRC. That explains the importanc...
The use of heat circulator for flammability in mesoscale combustor
<p>The mesoscale combustor is a part of the micropower electric generator. The function of the mesoscale combustor is to convert hydrocarbon to become thermal energy through combustion reaction. It is difficult to mainta...