1. Manganese oxide and oxide-hydroxide composites with halloysite nanotubes as cationic & anionic dye degradation photocatalystsIryna Kovinchuk, Georgii V. Sokolsky, Giuseppe Lazzara, Marjeta Maček, O. Sanginova, Matjaž Spreitzer, Andrey Ragulya, 2026, izvirni znanstveni članek Ključne besede: manganese oxides, halloysite nanotubes, dye degradation
Objavljeno v DiRROS: 01.09.2026; Ogledov: 96; Prenosov: 58
 Celotno besedilo (7,01 MB)
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2. Preparation of nano manganese oxide and its application in the wet oxidation of phenolWeitao Huo, Hongjing Yuan, Yongchao Hao, Cuige Lu, Lixia Wang, Mengdi Cao, 2026, izvirni znanstveni članek Ključne besede: nano manganese oxide, deep eutectic solvent, phenol, catalytic wet air oxidation
Objavljeno v DiRROS: 22.06.2026; Ogledov: 314; Prenosov: 193
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3. Chesnut honey and his properties in wound healingTanja Planinšek Ručigaj, 2022, pregledni znanstveni članek Povzetek: Out of all types of honey, chestnut honey is exceptional due to its composition. It is made from nectar and honeydew and is therefore a real treasure trove of substances – chestnut honey contains specific amino acids, proteins, enzymes, and elements that promote wound healing. Two of the three basic mechanisms are based on physical characteristics, namely the high sugar content and perfect ratio, as well as the acidic pH. The third mechanism depends on the glucose oxidase enzyme that is added to the honey by the bee.
Ključne besede: chesnut honey dressing, wound healing, osmosis, glucose oxidase, kynurenic acid, proline, calcium, potassium, manganese
Objavljeno v DiRROS: 24.02.2026; Ogledov: 575; Prenosov: 280
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4. Manganese, cobalt, nickel and zinc complexes with pyrazine-2-carboxylic acidSaša Petriček, 2025, izvirni znanstveni članek Ključne besede: complex, zinc, manganese(II), pyrazine-2-carboxylic acid, structure, thermal stability
Objavljeno v DiRROS: 21.08.2025; Ogledov: 808; Prenosov: 534
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5. Employing microalga Chlorella sorokiniana in the biosynthesis of paramagnetic and catalytically functional manganese clusterMarija Tanović, Milan Žižić, Milica Milenković, Zvonko Jagličić, Wilfred Hagen, Marina Stanić, Dalibor M. Stanković, Snežana Kovačević, Dmitry Karpov, Primož Šket, Uroš Javornik, Ivan Spasojević, Milena Dimitrijević, 2025, izvirni znanstveni članek Ključne besede: biosynthesis, manganese, microalgae
Objavljeno v DiRROS: 13.06.2025; Ogledov: 890; Prenosov: 747
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6. Mineralogy, geochemistry and genesis of low-grade manganese ores of Anujurhi area, Eastern Ghats, IndiaSujata Pattnaik, Satrughan Majhi, 2024, izvirni znanstveni članek Povzetek: The Anujurhi manganese ores occur in the high-grade gneisses of the Precambrian Eastern Ghats Supergroup in Odisha, India. They are characterized by conformable lenses containing minerals such as cryptomelane, romanechite, pyrolusite, todorokite, and pyrophanite, along with other opaque minerals like graphite, goethite and ilmenite. The gangue minerals associated with these ores include quartz, feldspar, garnet, kaolinite, apatite, sillimanite, zircon, biotite, alunite, and gorceixite. The primary elements present in the ore, Si, Mn, Fe, and Al, average at 16.20 %, 15.06 %, 11.94 %, and 6.6 % respectively. Additionally, trace amounts of P, K, Ti, Mg, Ca, and Na were detected. The average Fe/Mn ratio of 0.81 and the Si versus Al plot of the Anujurhi manganese ores suggest a hydrogenous-hydrothermal mixed source for the ferromanganese sediments. The characteristics of the manganese ore bands, absence of carbonate facies of ore, and geochemical association of Mn-Ba together with Na/Mg ratios and CaO-Na2O-MgO ternary plot of the manganese ores strongly indicate that the mineralization is a metamorphosed shallow marine-lacustrine deposit. Following deposition and diagenesis, the manganese minerals underwent at least two phases of Ultra High Temperature (UHT) and granulite facies metamorphism along with the host rocks. Tectonic uplift, erosion, extended exposure to atmospheric oxygen and percolation of meteoric water led to the supergene alteration and remobilization of the primary manganese minerals in a colloidal state, followed by epigenetic replacement along the structural weak planes of the granulite facies rocks, resulting in the formation of the current deposits. This is evidenced by the observed secondary replacement and colloidal textures in the Mn oxides.
Ključne besede: Eastern Ghats Mobile Belt (EGMB), Anujurhi, manganese ore, supergene enrichment
Objavljeno v DiRROS: 21.05.2025; Ogledov: 1026; Prenosov: 378
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7. Manganese dioxide-coated biocarbon for integrated adsorption-photocatalytic degradation of formaldehyde in indoor conditionsMariem Zouari, Silvo Hribernik, Laetitia Sarah Jennifer Marrot, Marian Tzolov, David Brian DeVallance, 2024, izvirni znanstveni članek Povzetek: Formaldehyde is a common indoor air pollutant with hazardous effects on human health. This study investigated the efficiency of biocarbon (BC) functionalized with variable contents of MnO2 for formaldehyde removal in ambient conditions via integrated adsorption-photocatalytic degradation technology. The sample with the highest formaldehyde removal potential was used to prepare a functional coating made of acrylic binder mixed with 20 wt% of the particles and applied on beech (Fagus sylvatica L) substrate. SEM images showed that MnO2 was deposited around and inside the pores of the BC. EDX spectra indicated the presence of Mn peaks and increased content of oxygen in the doped BC compared to pure BC, which indicated the successful formation of MnO2. Raman spectra revealed that the disorder in the BC's structure increased with increasing MnO2 loadings. FTIR spectra of BC–MnO2 samples displayed additional peaks compared to the BC spectrum, which were attributed to MnO vibrations. Moreover, the deposition of increased MnO2 loadings decreased the porosity of the BC due to pores blockage. The BC sample containing 8 % Mn exhibited the highest formaldehyde removal efficiency in 8 h, which was 91 %. A synergetic effect between BC and MnO2 was observed. The formaldehyde removal efficiency and capacity of the coating reached 43 % and 6.1 mg/m2, respectively, suggesting that the developed coating can be potentially used to improve air quality in the built environment.
Ključne besede: biocarbon, manganese dioxide, catalytic degradation, functional coating, built environment
Objavljeno v DiRROS: 30.01.2025; Ogledov: 1275; Prenosov: 937
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