Aug 21, 2015· Abstract This study explored the effect on photocatalytic degradation in aqueous solution with high- concentration ammonia where immobilized TiO 2 on glass beads was employed as the photocatalyst. TiO 2 film was prepared via deep coating TiO 2 in a sol–gel system of tetrabutyl titanate precursor and calcinating it at the temperature between 400 to 650 °C.Get a Quote
Solar-driven reduction of dinitrogen to ammonia under mild conditions has attracted widespread interest in recent years. In this study, we first report low-temperature hydrogenated BiOBr for the direct synthesis of ammonia from dinitrogen with high efficiency under solar-light irradiation. In a proof of concept, th
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After 6 h degradation reaction, the concentration of ammonia nitrogen decreased from 60.4 mg/L to 2.8 mg/L, and the degradation rate of ammonia nitrogen reached 95.3%, about 74% of total nitrogen was removed during the process, whereas were 93.9 and 70.7% in case of 3% Ag/Ce 4+ /La 3+-TiO 2 powder, respectively.
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The optimization experimental conditions for photocatalytic degradation of ammonia-N in aquaculture wastewater are as follows, nano-ZnO catalyst dosage was 0.4 g/L, the pH value of solution was 10, H 2 O 2 volume fraction was 4 %, respectively, if the reaction time may last 1 h, the removal rate of ammonia-N was expected to reach 86.66 %.Get a Quote
Dec 01, 2016· Application of solar light for degradation of ammonia in petrochemical wastewater by a floating TiO 2 /LECA photocatalyst J. Ind. Eng. Chem. , 20 ( 5 ) ( 2014 ) , pp. 2806 - 2813 Article Download PDF View Record in Scopus Google Scholar
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They reported that the ammonia removal efficiency was increased by increasing the pH value, and after solar light irradiation in three days, degradation of ammonia was achieved up to 96.5% [15Get a Quote
–. There is no study on degradation of combined chlorpyrifos, cypermethrin and chlorothalonil pesticides in aqueous solution by the solar photo-Fenton process. The tendency to combine a given number of chemically active but different pesticides indicates the need of treatment (degradation) of combined pesticides.
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A battery of degradation studies was carried out under sunlight at the Plataforma Solar de Almeria in a pilot plant specially developed for photo-Fenton applications. Photo-Fenton efficiencyGet a Quote
Oct 20, 2020· Inorganic/organic photocatalysts have been receiving attention owing to their attractive optical features. In this work, novel BiFeO 3 /MPVAA heterogeneous photocatalyst was prepared and its potential application as a floatable, visible light-driven photocatalyst was investigated by the photocatalytic degradation of aqueous ammonia. MPVAA refers to a buoyant polymer structure …Get a Quote
3.2. Photocatalytic Experiment 3.2.1. Degradation of Individual Formaldehyde, Ammonia, and Benzene. Table 1 shows the degradation ratios of formaldehyde, ammonia, and benzene after 9 h photocatalytic reaction under solar light when they exist in air individually. The results showed that the photocatalytic activities of Fe-doped TiO 2 thin films were higher than pure TiO 2 thin film and the
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environmental and energy applications, including degradation of organic pollutants, water splitting, nitrogen xation, hydrogen production from ammonia, and carbon dioxide reduction. The eﬃciency of photocatalysis is related to its eﬃ-ciency in ve main steps during the reactions: (i) light absorp-
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However, TrOC degradation by UVA radiation can show the potential of solar light-induced degradation of TrOCs as solar light that reaches the earth …Get a Quote
Dec 01, 2016· Application of solar light for degradation of ammonia in petrochemical wastewater by a floating TiO 2 /LECA photocatalyst J. Ind. Eng. Chem. , 20 ( 2014 ) , pp. 2806 - 2813 Article Download PDF View Record in Scopus Google ScholarGet a Quote
Nov 10, 2017· Abstract. Reactive oxygen species (ROS) can be produced by the interactions between sunlight and light-absorbing substances in aqueous environments, and these ROS are capable of destroying various organic pollutants in wastewater. In this study, the photocatalytic degradation of ammonia in petrochemical wastewater was investigated by solar light photocatalysis.Get a Quote
Reactive oxygen species (ROS) can be produced by the interactions between sunlight and light-absorbing substances in aqueous environments, and these ROS are capable of destroying various organic pollutants in wastewater. In this study, the photocatalytic degradation of ammonia in petrochemical wastewater was investigated by solar light photocatalysis.
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After 6 h degradation reaction, the concentration of ammonia nitrogen decreased from 60.4 mg/L to 2.8 mg/L, and the degradation rate of ammonia nitrogen reached 95.3%, about 74% of total nitrogenGet a Quote
Organometal mixed-halide perovskite materials hold great promise for next-generation solar cells, light-emitting diodes, lasers, and photodetectors. Solarept for the rapid progress in the efficiency of perovskite-based devices, the stability issue over prolonged light illumination has severely hindered their practical application. The deterioration mechanism of organometal halide perovskite
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Direct utilization of solar energy for photocatalytic removal of ammonia from water is a topic of strong interest. However, most of the photocatalysts with effective performance are solely...Get a Quote
Feb 20, 2021· Solar irradiation alone however, successfully removed ∼10 % 1,4-dioxane. Download : Download high-res image (372KB) Download : Download full-size image; Fig. 6. Degradation of 1,4-dioxane by W-TiO 2 photocatalysis calcined at (a) 800 °C and (b) 900 °C compared to pure TiO 2 and without using photocatalyst under simulated solar light.Get a Quote
In this work, we present the application of solar photocatalysis for air purification including toxic substances such as ammonia and methane normally related to emissions from agriculture (e.gGet a Quote
To achieve the photocatalytic degradation of ammonia, the photogenerated electrons and holes on the surface of a semiconductor should have suitable reduction and oxidation ability to react with the adsorbed species (i.e., O 2, NH 4+, NO 2−, NO 3) on the surface of the catalyst and generate free radicals or different products.
Mineralization of organic carbon led to a decrease in ammonia-nitrogen concentration Fig. 8 Effect of incident solar radiation intensity on (a) COD from 22 to 4.3 mg L-1 and an increase in nitrate removal and (b) TOC removal concentration from 0.7 to 18.1 mg L-1 in 60 min. Solar photo- H.Degradation of Pesticide in Aqueous Solution under the
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