Insight into the development and behaviour of (TiO2)0.9 + ((ZnO/ZnS):x% rGO)0.1 composites as photoelectrodes in DSSCs
Abstract: Development of photoelectrodes for solar cells offers a strategy to achieve more efficient photon conversion systems. This work develops (TiO2)0.9 + ((ZnO/ZnS):x% rGO)0.1 photoelectrodes with rGO contents of 0.5, 1 and 2%, investigating the influence of […]
Electron trap engineering in g-C3N4 with molecular Mo3S4 clusters for visible-light-driven photocatalysis
Abstract: In this study, a hybrid photocatalyst based on carbon nitride (g-C3N4) modified with the molecular cluster [Mo3S4Cl3(en)3]Cl was developed and evaluated for the visible-light-driven degradation of ciprofloxacin (CIP). The incorporation of the cluster introduced […]
Microwave-assisted synthesis of silver silicate: Linking structural and electronic properties to biological performance
Abstract: Silver silicate nanoparticles were synthesized via co-precipitation followed by microwave-assisted hydrothermal treatment for 0–64 min. X-ray diffraction confirmed that all samples were amorphous, while infrared spectroscopy, photoluminescence, and selected area electron diffraction revealed progressive […]
Unveiling the toxicity mechanism of copper tungstate (CuWO4) particles on the microalga Raphidocelis subcapitata assessed by multiple endpoints
Abstract: Semiconductors have multiple applications in society, including photocatalysis and electrochemical sensors. Copper tungstate (CuWO4) particles can degrade organic compounds from water, but their deleterious effects on aquatic biota must be evaluated before their widespread […]
Ni-Doped SnO Microplates for Carbon Monoxide Gas Detection
Abstract: Undoped and Ni-doped SnO were synthesized using a microwave-assisted hydrothermal method to analyze the influence of Ni-doped SnO nanostructures on CO detection. The scanning electron microscopy (SEM) analysis revealed a predominantly tetragonal SnO phase, […]
Interfacial charge transfer in KNb3O8/Ag3PO4 heterostructures for emerging pollutant removal under visible-light
Abstract: The development of efficient and stable photocatalysts for environmental remediation remains a key challenge in the treatment of emerging pollutants. In this work, heterostructured photocatalysts based on KNb3O8 and Ag3PO4 were successfully synthesized via a simple […]
Electrical Resistivity Control for Non-Volatile-Memory Electrodes Induced by Femtosecond Laser Irradiation of LaNiO3 Thin Films Produced by Pulsed Laser Deposition
Abstract: In this work, we investigated how the electrical resistivity of LaNiO3 thin films deposited on SrLaAlO4 (100), LaAlO3 (100), and MgO (100) single-crystal substrates by the pulsed laser deposition (PLD) technique can be controlled by femtosecond laser […]
Structural and magnetic modulations in α-Fe2O3 ceramic nanoparticles: A multifaceted study with DFT calculations
Abstract: The size- and shape-controlled synthesis of α-Fe2O3 nanoparticles was achieved via a solution combustion method using glucose, urea, and lemon juice as fuels. X-ray diffraction (XRD) confirmed the formation of α-Fe2O3 with minor γ-Fe2O3 phases, and crystallite sizes were calculated […]
Enhancing photocatalytic efficiency through silver modification of sodium and hydrogen titanate nanostructures
Abstract: This study investigates the enhancement of photocatalytic efficiency in silver-modified sodium and hydrogen titanates. Silver nanoparticles, particularly along the (201) crystal plane of sodium titanate, improve electron mobility and reduce electron-hole recombination, leading to more effective degradation of organic pollutants under light exposure. In hydrogen titanate, silver further […]
Tuning magnetic storage properties through neodymium substitution in CoCr2O4 nanostructures: A chemical synthesis approach and DFT calculations
Abstract: Neodymium-doped CoCr2O4 nanoparticles were synthesized via a chemical synthesis route to investigate their structural, microstructural, compositional, and magnetic properties. X-ray diffraction (XRD) analysis confirmed the formation of a single-phase cubic spinel structure with high crystallinity and slight lattice expansion […]
Exploring different food-grade bigel systems for delivering bioactive carotenoids: Part 1 – Evaluation of color parameters
Abstract: Bigels are hybrid systems combining hydrogels and oleogels, offering advantages as stable carriers for bioactives of varying polarities. This dual-phase structure effectively hosts hydrophilic and lipophilic compounds, providing stability and preventing degradation. Carotenoids, powerful antioxidants, […]
From p to n type-semiconductor and metallic material: one-step route using femtosecond pulsed laser to produce Ag3VO4/ AgVO3/Ag heterostructure
Abstract: The advent of femtosecond pulsed lasers has revolutionized materials science by enabling intense, ultrashort light pulses, facilitating nonlinear optical phenomena and structural modifications in materials. Ag3VO4, with its narrow band-gap, faces challenges such as charge recombination, […]
Defect Engineering in Silver-Based Bimetallic Semiconductors: Recent Advances and Future Perspective
Abstract: Since the mid-20th century, the interaction between light and inorganic semiconductors plays not only a key role in numerous fascinating phenomena but also provides the physical foundations for the development of many modern technologies […]
Plasma Treatment-Induced Exposure of α-Ag2WO4 Nanoparticles in Biobased Polymers for Medical Device Applications
Abstract: Poly(lactic acid) (PLA) is a biobased polymer with versatile applications, particularly in biomedical and packaging sectors. However, its limited antimicrobial properties, low crystallization kinetics, and restricted surface characteristics often require modification. Incorporating semiconductor nanoparticles […]
High-performance Al2O3 sol–gel films: Improving solar cell efficiency through antireflective and superhydrophobic properties
Abstract: This study developed a multifunctional aluminum oxide (Al2O3) film combining anti-reflective and superhydrophobic properties for enhanced photovoltaic (PV) performance in outdoor applications. The film was created on glass substrates using a sol–gel, dip coating, and controlled etching process, […]
Sodium niobate with high photocatalytic activity for the removal of organic dye and inactivation of Escherichia coli, Staphylococcus aureus, and Klebsiella pneumoniae bacteria: the effect of Zn doping on these properties
Abstract: NaNbO3 doped with Zn (0.00, 0.02, and 0.05 mmol) was synthesized by the microwave-assisted hydrothermal method. Photocatalytic and antibacterial activities were investigated. X-ray diffraction revealed the coexistence of two orthorhombic symmetries (P21ma and Pbma), with doping promoting a progressive […]
Selective oxidation of sulfides catalysed by WO3 supported on chitosan-derived carbon
Abstract: Sulfones are valuable compounds with diverse applications in pharmaceuticals and materials science. In this study, we present a promising approach for the efficient oxidation of sulfides to sulfones using WO3 supported on chitosan-derived carbon as […]
Cytotoxicity of epoxy-encapsulated Al-doped YIG nanoparticles in MG63 osteoblast cells
Abstract: In this study, the structural, magnetic, and cytotoxicity towards MG63 osteoblasts-like cells of epoxy/Y3Fe5O12: 1.6 wt% Al (YIG) nanoparticles were investigated. The nanoparticles crystallized in the garnet structured of YIG without secondary phases. The magnetization curve indicated the sample […]
Unveiling phase evolution in porous nickel sulfide for boosted alkaline water splitting
Abstract: Advancing alkaline water electrolysis requires bifunctional catalysts that are both low-cost and scalable. Here, we report a self-adaptive porous nickel sulfide (NixSy) electrode that, under cathodic operation, reconstructs in situ into a Ni3S2-rich phase […]
Solar-Responsive Zr-MOF/Ag4P2O7 Heterostructures for Sustainable Photocatalytic Degradation of Emerging Water Contaminants
Abstract: The rational design of heterostructured photocatalysts with engineered architectures is crucial for advancing sustainable energy-environmental technologies. Here, a microwave-assisted strategy is developed to construct a Zr-MOF/Ag4P2O7 heterostructure, synergistically integrating the high surface area and robustness […]
Unlocking the potential of Pb (Fe0. 67W0. 33) O3: A multifunctional multiferroic for next-gen magnetocaloric, memory, and supercapacitor technologies
Abstract: The present work reports the a comprehensive study of the structural, magnetic, and electrochemical properties of Pb(Fe₀.₆₇W₀.₃₃)O₃ (PFWO), highlighting its potential as a multifunctional material for room-temperature magnetocaloric, memory, and energy storage applications. Structural […]
Insights into Ag2SeO3 synthesis using the sonochemical method, for wastewater treatment: pH-tunable morphology
Abstract: This study investigates how pH influences the synthesis of Ag2SeO3 via a sonochemical route. Morphologies ranged from sheet- to rod-like particles, with slightly acidic conditions (pH 5) favoring smaller sheet-like structures. All samples exhibited high […]
Synthesis of Al-doped NaNbO3 rods with enhanced photocatalytic activity
In this paper, we synthesized NaNbO3 rods with Al(III) (0.00, 0.05 and 0.1 mmol) by the microwave-assisted hydrothermal method and evaluated the influence of doping on photocatalytic activity. The diffractograms reveal the coexistence of two orthorhombic space […]
Enhancing the intensity of the photoluminescence emission of 5D0→ 7F2 transition in In2O3 by Eu3+/Li+ Co-doping at fixed 1%
Abstract: Modulating and elevating the PL intensity of inorganic semiconductor through the co-doping of rare-earth and alkali cations is a viable approach for regulating their behavior. Here, we present a dual strategy, based on the co-doping process of Eu3+/Li+ of […]
Degradation of emerging contaminants using Co/Nb-modified SnO2 nanoparticles and produced with babassu mesocarp (Orbgnya Speciosa)
Abstract: In this work, pure SnO2 nanoparticles (SnO2 NPs), doped and co-doped with Co2 + and Nb5+ (0.05 and 0.1 mol), were prepared using babassu mesocarp (Orbgnya Speciosa) extract as a natural polymerizing agent and microwave-assisted hydrothermal treatment. X-ray diffraction analysis (XRD) showed that the crystallinity of […]
Electron Irradiation-Induced Structural and Electronic Transformations in β-Ag2MoO4: Atomistic Insights into the Formation of Ag Nanoparticles
Abstract: Under electron irradiation, transition metal molybdates can form transition metal nanostructures, enabling chemical reactions and physical processes. Understanding the driving force of this transformation is crucial for various applications. Herein, we investigate the structural […]
Harmful effects of the semiconductor copper tungstate (CuWO4) on multiple photosynthetic parameters of the green microalga Raphidocelis subcapitata
Abstract: The semiconductor copper tungstate (CuWO4) may end up in aquatic ecosystems since it has the potential for water decontamination. The toxic effects of CuWO4 are totally unknown for eukaryotic organisms. In view of this, we […]
Synergy between NiWO4 and chitosan for the development of catalysts for sulfide oxidation
Abstract: In this work, catalysts based on composite films composed by chitosan with disordered NiWO4 (10, 20, and 40 % w/w) were synthesized for their application in the oxidation of sulfides to sulfones. The catalysts were characterized by X-ray diffraction (XRD), Fourier-transform […]
Disentangling the structure, optical properties, and photoluminescence emissions of NiW 1− x Mo x O 4 (x= 25, 50, and 75%) solid solutions: experimental and DFT studies
Abstract: Solid solutions, formed by combining two transition metal oxides with distinct properties, offer promising potential for optimizing functional characteristics that may be lacking in the parent materials. In this study, NiWO4 and NiMoO4 semiconductors […]
Lighting up the structure and electronic properties of α-, β-, γ-Ag 2 WO 4 polymorphs under laser irradiation: a DFT investigation
L Cabral, Elson Longo, Miguel A San-Miguel, Edson Leite, EZ da Silva, Juan Andrés Abstract: Laser irradiation (LI)–matter interaction provides a versatile means to manipulate the physicochemical properties of materials. Understanding material responses to LI […]
Microplastics in freshwater ecosystems: probabilistic environmental risk assessment and current knowledge in occurrence and ecotoxicological studies
Abstract: Ecotoxicological studies involving microplastics (MPs) conducted on a laboratory scale may not always accurately mirror real environmental conditions (types, sizes, shapes, and concentrations of MPs). This review primarily focused on examining studies that investigated […]
Mapping and Characterization of the Surface Structure and Electronic Properties of Β-Ag2moo4 from Dft Thermodynamic Calculations
Abstract: The physical and chemical properties of metal oxides are closely related to their surface termination, the presence of defects, and structural disorder, making the assignment of surface-morphology-property relationship difficult. The identification of specific descriptors […]
Bismuth-doping induced enhanced humidity sensing properties of spinel NiFe2O4 nanoparticles
Abstract: Bi-doped NiFe2O4 nanoparticles were tested for humidity detection at various RH levels at room temperature. The findings indicated that sensors with higher Bi concentrations, particularly the ones with 20 % Bi doping, showed significantly enhanced sensing response—up to 97 %, a sixfold […]
Green Synthesis of carbon quantum dots for enhancing photocatalytic activity: Hydrogen/oxygen evolution and dye photodegradation
Abstract: Carbon quantum dots (CQDs) have recently attracted attention across various fields due to their small size, high conductivity, fluorescence emission, low toxicity, and other desirable characteristics. In this study, highly fluorescent CQDs with an […]
First-principles study on the stability, electronic structure, and band alignment of AgNbO3 surfaces: Understanding the adsorption process of H2O and O2
Abstract: In this work, DFT calculations have been employed to delve into the structural, electronic, and optical properties of low-index (010), (100), (101), (110), (011), and (114) surfaces of AgNbO3. Wulff construction was used to […]
Ag3BiO3/AgBr heterojunction formation for dye degradation under visible light and its photocatalytic mechanism
Ag3BiO3/AgBr heterojunction formation for dye degradation under visible light and its photocatalytic mechanism Abstract: This work investigates the photocatalytic properties of a nanostructured Ag3BiO3/AgBr composite prepared by the co-precipitation method followed by ion exchange for […]
Antimicrobial activity and biocompatibility of alpha-silver tungstate nanoparticles
Antimicrobial activity and biocompatibility of alpha-silver tungstate nanoparticles Abstract: The growing global threat posed by microorganisms resistant to conventional antimicrobials underscores the urgent need for novel agents to control infections. The aim of this study […]
Improving nitrate-to-ammonia conversion efficiency on electrodeposited nickel phosphide via surface δ-FeOOH modification
Improving nitrate-to-ammonia conversion efficiency on electrodeposited nickel phosphide via surface δ-FeOOH modification Abstract: Electrocatalytic nitrate reduction to ammonia is an appealing and promising approach for recovering industry and agricultural wastewater. However, there is a lack of efficient […]
Enhancing the electroreduction of N2 and/or O2 on MoS2 using a nanoparticulate intrinsically microporous polymer (PIM-1)
Enhancing the electroreduction of N2 and/or O2 on MoS2 using a nanoparticulate intrinsically microporous polymer (PIM-1) Abstract: The electrochemical nitrogen reduction reaction under ambient/mild conditions offers a low-carbon alternative to the Haber–Bosch process for synthesizing NH3, especially when […]
The Influence of Annealing on the Sb Layer in the Synthesis of [001]-Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation
The Influence of Annealing on the Sb Layer in the Synthesis of [001]-Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation Abstract: This work reports a new thermal treatment approach to obtain [001]-oriented Sb2Se3 film, which consists […]
Influence of Different Synthesis Methods on the Defect Structure, Morphology, and UV-Assisted Ozone Sensing Properties of Zinc Oxide Nanoplates
Influence of Different Synthesis Methods on the Defect Structure, Morphology, and UV-Assisted Ozone Sensing Properties of Zinc Oxide Nanoplates Abstract: In this work, room-temperature UV-assisted ozone detection was investigated using ZnO nanoplates synthesized via precipitation, […]
WO3/BiVO4 heterojunctions: Photoelectrochemical performance for dexamethasone degradation and toxicity assessment in Lactuca sativa
WO3/BiVO4 heterojunctions: Photoelectrochemical performance for dexamethasone degradation and toxicity assessment in Lactuca sativa Abstract: Water contamination by dexamethasone (DEX) poses a significant threat to the global population. Developing an effective and affordable system for DEX removal remains […]
Tailoring WO3 photoelectrodes with defect-rich MoO3-x nanosheets for efficient water splitting reaction
Tailoring WO3 photoelectrodes with defect-rich MoO3-x nanosheets for efficient water splitting reaction Abstract: Despite its potential for photochemical and photoelectrochemical applications, tungsten trioxide (WO3) presents limitations due to its wide bandgap and rapid charge carrier recombination. Here, […]
Effective sensing mechanisms of O2 and CO on SnO2 (110) surface: a DFT study
Effective sensing mechanisms of O2 and CO on SnO2 (110) surface: a DFT study Abstract: The dissociative adsorption of O2 on SnO2 is pivotal for its gas-sensing performance, yet the underlying mechanisms remain open to […]
The effects of nickel tungstate nanoparticles (NiWO4 NPs) on freshwater microalga Raphidocelis subcapitata (Chlorophyceae)
The effects of nickel tungstate nanoparticles (NiWO4 NPs) on freshwater microalga Raphidocelis subcapitata (Chlorophyceae) Abstract: Among the vast array of functional nanoparticles (NPs) under development, nickel tungstate (NiWO4) has gained prominence due to its potential applications as a […]
Cobalt tungstate nanoparticles (CoWO4 NPs) affect the photosynthetic performance of the green microalga Raphidocelis subcapitata
Cobalt tungstate nanoparticles (CoWO4 NPs) affect the photosynthetic performance of the green microalga Raphidocelis subcapitata Abstract: Innovative applications of cobalt tungstate nanoparticles (CoWO4 NPs) are directly linked to their increased production and consumption, which can consequently increase their […]
Synthesis of hematite (α-Fe2O3) nanoparticles using Syzygium cumini extract: Photodegradation of norfloxacin and enhanced recyclability
Synthesis of hematite (α-Fe2O3) nanoparticles using Syzygium cumini extract: Photodegradation of norfloxacin and enhanced recyclability Abstract: In this study, we report obtaining α-Fe2O3 nanoparticles by a green synthesis method using different concentrations of Syzygium cumini (L.) Skeels (Myrtaceae) leaf extract. […]