The environmental impact of potassium tungstophosphate/ZSM-5 zeolite: Insight into catalysis and adsorption processes

Jevremović, Anka; Vasiljević, Bojana Nedić; Popa, Alexandru; Uskoković‐Marković, Snežana; Ignjatović, Lj. M.; Bajuk–Bogdanović, Danica; Milojević-Rakić, Maja

doi:10.1016/j.micromeso.2021.110925

Cited by 13 publications

(6 citation statements)

References 44 publications

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“…Moreover, the Si/Al ratio also has a significant impact on the adsorption properties of ZSM zeolites. Greater aluminum content and charge of the surface result in more effective potassium cation exchange and posterior KPW development than in samples with higher Si/Al ratios [132].…”

Section: Triazine and Urea Pesticidesmentioning

confidence: 96%

“…For the adsorption of nicosulfuron onto ZSM zeolite and KPW (potassium salts of 12tungstophosphoric acid) composites, the method of synthesis appears to have a significant influence. Jevremovic and coworkers [132] prepared two synthesis methods that differ the in order in which the respective salts are added: the K/PW procedure and PW/K procedure. In the first method zeolites with various SiO 2 /Al 2 O 3 ratios (30, 50, or 80) were treated with K 2 CO 3 in the first step and HPW in the second step.…”

Section: Triazine and Urea Pesticidesmentioning

confidence: 99%

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Removal of Pesticides from Waters by Adsorption: Comparison between Synthetic Zeolites and Mesoporous Silica Materials. A Review

Andrunik

Bajda

2021

Materials

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Pesticides are pollutants found in wastewater due to increasing agricultural activities over the years. Inappropriate dosing of pesticides results in the dispersal of active ingredients in the environment. The complete removal of pesticides from wastewater is an immediate concern due to their high toxicity and mobility. At present, adsorption is one of the most widely used methods for pesticide removal, in which synthetic zeolites and mesoporous silica materials are extensively applied. This article presents a systematic and comparative review of the applications and comparison of these adsorbents, based on the data reported in the literature. The paper summarizes the information collected from various studies, including the type of adsorbents and pesticides used, experimental conditions, and results of each work. The studies analyzed were laboratory-based and show potential advantages for the treatment of pesticide-bearing waters using functionalized and unfunctionalized synthetic zeolites and mesoporous silica materials. As a whole, functionalized materials are reported to exhibit better removal performance for different pesticides than conventional materials. It is expected that the results of this review will help researchers to establish a powerful strategy for the abatement of pesticides in wastewater.

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Section: Triazine and Urea Pesticidesmentioning

confidence: 96%

Section: Triazine and Urea Pesticidesmentioning

confidence: 99%

Removal of Pesticides from Waters by Adsorption: Comparison between Synthetic Zeolites and Mesoporous Silica Materials. A Review

Andrunik

Bajda

2021

Materials

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“…The black line layers in the images are the typical WS 2 slabs. [23] According to the statistics of not less than 500 WS 2 slabs in different parts of each catalyst, the average length, average stacking number of WS 2 slabs and dispersion (f w ) of W species of the different catalysts were calculated, and the results are shown in Table 2. The average length of active phase reflects its dispersion degree, and the shorter the average length of active phase, the higher the dispersion degree.…”

Section: Hrtem Imagesmentioning

confidence: 99%

Heteroatom‐Modified Zeolite Y and Catalytic Performance of Their NiWS Supported Catalysts for Hydrocracking of Naphthalene

et al. 2022

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In order to prepare hydrocracking catalyst with high catalytic performance for producing chemical raw materials, NiW supported catalysts was prepared with Ni−P co‐modified Y zeolites as the supports for the hydrocracking of naphthalene. Y zeolites were impregnated with different Ni−P contents, and the effects of Ni−P co‐modification on the physicochemical properties of Y zeolites, the properties of the active phases of the catalysts and the catalytic performance of catalysts were analyzed via a series of characterization methods. Ni−P co‐modification could effectively improve the pore properties and acid properties of Y zeolites, and made the acid density and acid strength of Y zeolites meet the requirements of selective cracking of naphthalene. Ni−P co‐modification could also effectively improve the reducibility of active metals,dispersion and stacking number of active phases of the catalysts, which greatly improved the selectivity of the target product (C6−C8) of the catalysts. Compared with NiW/HY, the yield of C6‐C8 products of NiW/2‐Ni/P−Y increased by 30.8 %. It is expected to provide a feasible strategy for the design and preparation of hydrocracking catalysts for the production of chemical raw materials in the integration of refining and chemical industry.

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“…24 A definite correlation between pesticide retention and cytotoxicity was established, along with the capacity of the ZSM-5 zeolite for acetamiprid adsorption. Furthermore, a series of functionalized zeolite-based materials 25–27 were tested for acetamiprid adsorption, and, in each case, an interesting finding emerged. Neat zeolites are, by far, adsorbents with an outstanding capacity for acetamiprid removal.…”

Section: Introductionmentioning

confidence: 99%

MFI, BEA and FAU zeolite scavenging role in neonicotinoids and radical species elimination

Milojević-Rakić

Popadić²,

Janošević

et al. 2022

Environ. Sci.: Processes Impacts

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The environmental impact of potassium tungstophosphate/ZSM-5 zeolite: Insight into catalysis and adsorption processes

Cited by 13 publications

References 44 publications

Removal of Pesticides from Waters by Adsorption: Comparison between Synthetic Zeolites and Mesoporous Silica Materials. A Review

Removal of Pesticides from Waters by Adsorption: Comparison between Synthetic Zeolites and Mesoporous Silica Materials. A Review

Heteroatom‐Modified Zeolite Y and Catalytic Performance of Their NiWS Supported Catalysts for Hydrocracking of Naphthalene

MFI, BEA and FAU zeolite scavenging role in neonicotinoids and radical species elimination

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