Optimization of Atrazine Degradation in the Aqueous Phase Using Titanium Catalyst Doped With Iron (Fe+3-TiO2) Processes

Shamsedini, Narges; Baghapour, Mohammad Ali; Dehghani, Mansooreh; Nasseri, Simin; Moghaddam, Mohammad Sohrab

doi:10.17795/jhealthscope-33065

Cited by 6 publications

(3 citation statements)

References 32 publications

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“…The results of a study focusing on evaluating the feasibility of using a titanium catalyst doped with iron (Fe +3 -TiO2) to remove atrazine shows 41.72% rate of atrazine removal. It can be concluded that the Fe +3 -TiO is an appropriate method for reducing atrazine in polluted water resources [31]. Bacteria capable of degrading atrazine were isolated from the lotic water using an enrichment technique.…”

Section: Hydroxyatrazinementioning

confidence: 99%

Biodegradation of Atrazine Herbicide: A Mini-review

Muhammad,

Yakasai

2023

J Biochem Microbiol Biotechnol

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Atrazine herbicide is known to disrupt the endocrine system and is potentially carcinogenic. The long-term use of this herbicide results in high residue levels in soil, causing water contamination of agricultural land. Microbial degradation of herbicide represents a cost-effective way of eco-restoration compared to the more expensive physicochemical methods, especially in soil settings. Growth and degradation of atrazine by microorganisms are optimal at specific concentrations, temperature, pH, inoculum size and hours of incubation. Previously isolated microorganisms have demonstrated high efficiency for atrazine biodegradation with a broad optimum pH and temperature. The metabolic pathway for biodegradation has been elucidated and reveals important characteristics. These organisms as suitable candidates for bioremediation of atrazine-polluted sites have shown great potential for atrazine degradation. This review aimed to catalogue and update the characteristics of isolated atrazine-degrading microorganisms to date.

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Section: Hydroxyatrazinementioning

confidence: 99%

Biodegradation of Atrazine Herbicide: A Mini-review

Muhammad,

Yakasai

2023

J Biochem Microbiol Biotechnol

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“… 10 11 12 Titanium dioxide (with three crystalline phases: anatase, rutile and brookite), a white powder that has a photocatalytic and super-hydrophilic, is used in water and wastewater treatment, air pollution and buildings. 12 13 Features such as low price, availability, chemical stability and lack of toxicity make the titanium dioxide as the most appropriate photocatalyst. 14 Photocatalytic oxidation by having advantages such as an activity at ambient temperature and low pressure, low cost and low power consumption in comparison with other methods, has introduced as one of the promising alternatives for treating a wide range of volatile organic compounds in the recent years.…”

Section: Introductionmentioning

confidence: 99%

Removal of toluene vapors from the polluted air with modified natural zeolite and titanium dioxide nanoparticles

et al. 2018

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Toluene is a colorless and flammab1le liquid with the same solubilizing capacity as benzene that is in many cases used as an alternative to benzene, because of the uncertainty of being carcinogens. Workers can be exposed to toluene by breathing the chemical. To avoid inhalation and dermal effects caused by exposure to toluene, solutions such as adsorption, thermal oxidation, membrane separation and photocatalytic processes are applied. In this study, removal of toluene vapors with modified natural zeolite and titanium dioxide nanoparticles was discussed. The natural zeolite was modified using chemical and thermal methods. The samples characterized by Brunauer-Emmet-Teller, Barrett-Joyner-Halenda, X-ray diffraction and scanning electron microscopy tests. After stabilization of TiO2 nanoparticles, the removal efficiency for the toluene vapors at a concentration of 50, 150 and 300 ppm were evaluated using a dynamic system. The results showed that the zeolite has a very porous surface and after modifying the context its specific surface area increased 2.54 times. The results of the adsorption capacity calculation and photocatalytic process showed that modified zeolite samples-TiO2 bed has greater efficiency in the adsorption capacity and better photocatalytic activity than a Ze-TiO2 bed. Ze-TiO2 bed was able to remove 26% of toluene vapors at the concentration of 50 ppm and inlet flow rate of 1 L/m, which was 1.26 times more than a bed Ze-TiO2. According to the results of this study, while modifying the natural zeolite increased desirable properties such as specific surface area and Si/Al ratio, but in comparison with similar studies with synthetic bed such as zeolite Y and ZSM-5, could not achieve desired results in a photocatalytic activity for its application in industry. However, because of its abundance in the world and Iran and therefore low cost of preparation and also due to its unique characteristics, it is recommended that more studies to be done about modifying and its application in photocatalytic processes.

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“…The maximum allowed concentration of atrazine in drinking water in the USA is 3 ppb, and, suitable methods for its detoxification and removal from water are needed. Several materials and methods have been suggested for the removal of atrazine 4 , 5 . Reported studies focus on reverse osmosis (RO) 6 , nanofiltration (NF) 7 , physicochemical methods such as extraction and adsorption 8 , and degradation based on visible or ultraviolet radiation, heat, microwave and ultrasound 9 – 14 .…”

Section: Introductionmentioning

confidence: 99%

Atrazine degradation through PEI-copper nanoparticles deposited onto montmorillonite and sand

Kalidhasan

Dror

Berkowitz

2017

Sci Rep

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We present the synthesis of new composite materials based on copper nanoparticles (Cu NPs) deposited onto montmorillonite (MK10) and quartz sand, for degradation of atrazine, in the context of an advanced oxidation process (AOP). The synthesis involves a first step in which polyethylenimine (PEI) capped Cu NPs (PEI_Cu NPs) are prepared, and then deposited onto, separately, MK10 and sand, through a solvent impregnation method. The resulting products are characterized in detail; the copper is found to exist as a mixture of copper (I, II) oxide. The degradation of atrazine follows a second-order kinetic model with constant values of K2 = 1.7957 g mg−1 min−1 for MK10_PEI_Cu NPs and K2 = 0.8133 g mg−1 min−1 for sand_PEI_Cu NPs. The reaction rate is linked to Cu2O and CuO redox-active species within the layers, pores and surface of the host materials. A degradation mechanism is found with application of these composite materials in the presence of H2O2; adsorption occurs in the absence of H2O2. In contrast, the unmodified MK10 and sand exhibit adsorption in both of the above reaction conditions. Finally, the stability of the Cu NPs following degradation is evaluated, and no significant amount of copper leaching is found.

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Optimization of Atrazine Degradation in the Aqueous Phase Using Titanium Catalyst Doped With Iron (Fe+3-TiO2) Processes

Cited by 6 publications

References 32 publications

Biodegradation of Atrazine Herbicide: A Mini-review

Biodegradation of Atrazine Herbicide: A Mini-review

Removal of toluene vapors from the polluted air with modified natural zeolite and titanium dioxide nanoparticles

Atrazine degradation through PEI-copper nanoparticles deposited onto montmorillonite and sand

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