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Reactions at mineral surfaces are central to all geochemical processes. As minerals comprise the rocks of the Earth, the processes occurring at the mineral–aqueous fluid interface control the evolution of the rocks and hence the structure of the crust of the Earth during processes such as metamorphism, metasomatism, and weathering. In recent years focus has been concentrated on mineral surface reactions made possible through the development of advanced analytical methods such as atomic force microscopy (AFM), advanced electron microscopies (SEM and TEM), phase shift interferometry, confocal Raman spectroscopy, and advanced synchrotron-based applications, to enable mineral surfaces to be imaged and analyzed at the nanoscale. Experiments are increasingly complemented by molecular simulations to confirm or predict the results of these studies. This has enabled new and exciting possibilities to elucidate the mechanisms that govern mineral–fluid reactions. In this Special Issue, “Mineral Surface Reactions at the Nanoscale”, we present 12 contributions that highlight the role and importance of mineral surfaces in varying fields of research.
metadynamics --- minerals --- n/a --- microstructure --- dissolution-reprecipitation --- stabilization --- albite --- mineral–water interface --- simulation --- krennerite --- mineralogy --- mineral replacement --- calcite --- pyrite --- dissolution-precipitation --- goethite --- recrystallization --- gold–(silver) tellurides --- isotopes --- non-classical nucleation --- calaverite --- interfacial precipitation --- toxic metals --- metasomatism --- adsorption --- amorphous --- pre-nucleation clusters --- surface --- dissolution --- hematite --- cyanide --- MOFs --- leaching --- Raman spectroscopy --- sodalite --- carbonation --- rate spectra --- retreat velocity --- additives --- liquid precursors --- bioaragonite --- brucite --- kinetics --- re-adsorption --- brushite --- polymorphs --- dissolution–precipitation --- hydrothermal experiments --- apatite --- ferrihydrite --- mesocrystals --- catalysts --- carbonic anhydrase --- XPS --- replacement reaction --- mineral growth --- carbon capture and storage --- interfaces --- citrate --- classical nucleation theory --- REEs --- phosphate --- wollastonite --- polarization microscopy --- natural porous gold --- sylvanite --- analcime --- calcium phosphate --- Fe atom exchange --- nepheline --- biomineralisation --- interface-coupled dissolution–reprecipitation --- hydrothermal method --- mineral-water interface --- gold-(silver) tellurides --- interface-coupled dissolution-reprecipitation
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Nanomaterials possess astonishing physical and chemical properties. They play a key role in the development of novel and effective drugs, catalysts, sensors, and pesticides, to cite just a few examples. Notably, the synthesis of nanomaterials is usually achieved with chemical and physical methods needing the use of extremely toxic chemicals or high-energy inputs. To move towards more eco-friendly processes, researchers have recently focused on so-called “green synthesis”, where microbial, animal-, and plant-borne compounds can be used as cheap reducing and stabilizing agents to fabricate nanomaterials. Green synthesis routes are cheap, environmentally sustainable, and can lead to the fabrication of nano-objects with controlled sizes and shapes—two key features determining their bioactivity.
anti-fungal --- chitosan --- graphene oxide --- n/a --- energy density --- sponges --- Escherichia coli --- filariasis --- titanium dioxide nanoparticles --- synthetic amorphous silica (SAS) --- green synthesis --- ionic nanocomplexes --- methylene blue --- cacao --- mesoporous materials --- polyol-assisted fluoride ions slow-release strategy --- stored product insects --- polyarginine --- solvothermal synthesis --- agricultural pests --- time dependence --- magnetic nanomaterials --- in vitro testing --- poly-L-lactic acid --- Raman spectroscopy --- sample preparation --- self-assembly --- solid carbon spheres --- crystallographic phase control --- microwave injured cells --- CuInS2 --- antimicrobial --- ZnO NPs --- Scadoxus multiflorus --- lipase --- mosquito control --- biocatalysis --- hyaluronic acid --- hybrid nanoflowers --- Desulfovibrio desulfuricans --- reduced graphene oxide --- ovicidal --- enzyme immobilization --- palladium nanoparticles --- non-cytotoxic --- photocatalysis --- insecticides --- ultrasonic dispersing (USD) --- X-ray photoelectron spectroscopy --- cell proliferation --- CVD process --- NaYF4 mesocrystals --- microwave energy --- leaf --- dengue --- hollow carbon spheres --- gum kondagogu --- functionalization --- silver nanoparticles --- larvicidal --- nanostructured --- plasma --- electrical conductivity --- larvicides --- TEM --- nanomaterials (NMs) --- carbon spheres
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The semiconductor titanium dioxide (TiO2) has been evolved as a prototypical material to understand the photocatalytic process, and has been demonstrated for various photocatalytic applications such as pollutants degradation, water splitting, heavy metal reduction, CO2 conversion, N2 fixation, bacterial disinfection, etc. Rigorous photocatalytic studies on TiO2 have paved the way to understanding the various chemical processes involved and the physical parameters (optical and electrical) required to design and construct diverse photocatalytic systems. Accordingly, it has been realized that an effective photocatalyst should have ideal band edge potential, narrow band gap energy, reduced charge recombination, enhanced charge separation, improved interfacial charge transfer, surface-rich catalytic sites, etc. As a result, many strategies have been developed to design a variety of photocatalytic systems, which include doping, composite formation, sensitization, co-catalyst loading, etc. Towards highlighting the above-mentioned diversities in TiO2 photocatalysis, there have been many interesting original research works on TiO2, involving material designs for various photocatalytic applications published in this Special Issue. In addition, some excellent review papers have also been published in this Special Issue, focusing on the various TiO2-based photocatalytic systems and their mechanisms and applications.
Research & information: general --- modified L-H model --- N-TiO2 --- photocatalytic degradation --- benzene --- antibacterial --- copper oxide --- photocatalyst --- titanium dioxide --- thin film --- visible light --- photovoltaic conversion --- interfacial charge-transfer transition --- 7,7,8,8-tetracyanoquinodimethane --- Nb-doped TiO2 --- N-doped graphene quantum dots --- TiO2 --- photocatalytic performance --- pyridinic N --- graphitic N --- solid-phase photocatalytic degradation --- polyvinyl borate --- decahedral-shaped anatase titania particles --- {001} and {101} facets --- facet-selective metal photodeposition --- pH dependence --- zeta potential --- facet-selective reaction --- photocatalysis --- deNOxing --- Titania --- photophysics --- metal oxides --- environment --- 2D materials --- composite --- iron-doped TiO2 --- photocatalytic activity --- low UV irradiation --- hydroxyl radical --- estriol --- W-Mo dopants --- nanoparticles --- non-metal- doped TiO2 --- nitroaromatic compounds --- reduction --- selectivity --- Titanium dioxide --- bismuth molybdate --- lignin --- UV light --- Photo-CREC Water II reactor --- Palladium --- Hydrogen production --- Quantum Yield --- magnetic property --- reusable --- photoreduction --- microporous material --- adsorption --- air purification --- porous glass --- mesocrystals --- synthesis --- modification --- Ru-Ti oxide catalysts --- HCl oxidation --- oxygen species --- Ce incorporation --- active phase-support interactions --- bleached wood support materials --- 3D photocatalyst --- UV transmittance --- floatable --- recyclable --- TiO2C composite --- acid catalyst --- dehydration --- fructose --- 5-Hydroxymethylfurfural --- Microcystis aeruginosa --- microcystin --- controlled periodic illumination --- advanced oxidation process --- hexabromocyclododecane --- environmental management --- advanced oxidation processes --- energy band engineering --- morphology modification --- applications --- Titanium dioxide (TiO2) --- visible-light-sensitive photocatalyst --- N-doped TiO2 --- plasmonic Au NPs --- interfacial surface complex (ISC) --- selective oxidation --- decomposition of VOC --- carbon nitride (C3N4) --- alkoxide --- ligand to metal charge transfer (LMCT) --- hydrogen production --- TiO2-HKUST-1 composites --- solar light --- electron transfer --- graphene quantum dots --- heterojunction --- process optimization --- response surface methodology --- kinetic study --- Advanced oxidation processes (AOPs) --- TiO2 catalyst --- textile wastewater --- oxygen vacancy --- polymeric composites --- photoelectrochemistry --- co-modification --- solar energy conversion --- p-n heterojunction --- g-C3N4 --- charge separation --- semiconductors --- redox reactions --- band gap engineering --- nanostructures --- n/a --- in-situ formation --- anatase nanoparticles --- H-titanate nanotubes --- dual-phase --- low temperature
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The semiconductor titanium dioxide (TiO2) has been evolved as a prototypical material to understand the photocatalytic process, and has been demonstrated for various photocatalytic applications such as pollutants degradation, water splitting, heavy metal reduction, CO2 conversion, N2 fixation, bacterial disinfection, etc. Rigorous photocatalytic studies on TiO2 have paved the way to understanding the various chemical processes involved and the physical parameters (optical and electrical) required to design and construct diverse photocatalytic systems. Accordingly, it has been realized that an effective photocatalyst should have ideal band edge potential, narrow band gap energy, reduced charge recombination, enhanced charge separation, improved interfacial charge transfer, surface-rich catalytic sites, etc. As a result, many strategies have been developed to design a variety of photocatalytic systems, which include doping, composite formation, sensitization, co-catalyst loading, etc. Towards highlighting the above-mentioned diversities in TiO2 photocatalysis, there have been many interesting original research works on TiO2, involving material designs for various photocatalytic applications published in this Special Issue. In addition, some excellent review papers have also been published in this Special Issue, focusing on the various TiO2-based photocatalytic systems and their mechanisms and applications.
Research & information: general --- modified L-H model --- N-TiO2 --- photocatalytic degradation --- benzene --- antibacterial --- copper oxide --- photocatalyst --- titanium dioxide --- thin film --- visible light --- photovoltaic conversion --- interfacial charge-transfer transition --- 7,7,8,8-tetracyanoquinodimethane --- Nb-doped TiO2 --- N-doped graphene quantum dots --- TiO2 --- photocatalytic performance --- pyridinic N --- graphitic N --- solid-phase photocatalytic degradation --- polyvinyl borate --- decahedral-shaped anatase titania particles --- {001} and {101} facets --- facet-selective metal photodeposition --- pH dependence --- zeta potential --- facet-selective reaction --- photocatalysis --- deNOxing --- Titania --- photophysics --- metal oxides --- environment --- 2D materials --- composite --- iron-doped TiO2 --- photocatalytic activity --- low UV irradiation --- hydroxyl radical --- estriol --- W-Mo dopants --- nanoparticles --- non-metal- doped TiO2 --- nitroaromatic compounds --- reduction --- selectivity --- Titanium dioxide --- bismuth molybdate --- lignin --- UV light --- Photo-CREC Water II reactor --- Palladium --- Hydrogen production --- Quantum Yield --- magnetic property --- reusable --- photoreduction --- microporous material --- adsorption --- air purification --- porous glass --- mesocrystals --- synthesis --- modification --- Ru-Ti oxide catalysts --- HCl oxidation --- oxygen species --- Ce incorporation --- active phase-support interactions --- bleached wood support materials --- 3D photocatalyst --- UV transmittance --- floatable --- recyclable --- TiO2C composite --- acid catalyst --- dehydration --- fructose --- 5-Hydroxymethylfurfural --- Microcystis aeruginosa --- microcystin --- controlled periodic illumination --- advanced oxidation process --- hexabromocyclododecane --- environmental management --- advanced oxidation processes --- energy band engineering --- morphology modification --- applications --- Titanium dioxide (TiO2) --- visible-light-sensitive photocatalyst --- N-doped TiO2 --- plasmonic Au NPs --- interfacial surface complex (ISC) --- selective oxidation --- decomposition of VOC --- carbon nitride (C3N4) --- alkoxide --- ligand to metal charge transfer (LMCT) --- hydrogen production --- TiO2-HKUST-1 composites --- solar light --- electron transfer --- graphene quantum dots --- heterojunction --- process optimization --- response surface methodology --- kinetic study --- Advanced oxidation processes (AOPs) --- TiO2 catalyst --- textile wastewater --- oxygen vacancy --- polymeric composites --- photoelectrochemistry --- co-modification --- solar energy conversion --- p-n heterojunction --- g-C3N4 --- charge separation --- semiconductors --- redox reactions --- band gap engineering --- nanostructures --- n/a --- in-situ formation --- anatase nanoparticles --- H-titanate nanotubes --- dual-phase --- low temperature
Choose an application
The semiconductor titanium dioxide (TiO2) has been evolved as a prototypical material to understand the photocatalytic process, and has been demonstrated for various photocatalytic applications such as pollutants degradation, water splitting, heavy metal reduction, CO2 conversion, N2 fixation, bacterial disinfection, etc. Rigorous photocatalytic studies on TiO2 have paved the way to understanding the various chemical processes involved and the physical parameters (optical and electrical) required to design and construct diverse photocatalytic systems. Accordingly, it has been realized that an effective photocatalyst should have ideal band edge potential, narrow band gap energy, reduced charge recombination, enhanced charge separation, improved interfacial charge transfer, surface-rich catalytic sites, etc. As a result, many strategies have been developed to design a variety of photocatalytic systems, which include doping, composite formation, sensitization, co-catalyst loading, etc. Towards highlighting the above-mentioned diversities in TiO2 photocatalysis, there have been many interesting original research works on TiO2, involving material designs for various photocatalytic applications published in this Special Issue. In addition, some excellent review papers have also been published in this Special Issue, focusing on the various TiO2-based photocatalytic systems and their mechanisms and applications.
modified L-H model --- N-TiO2 --- photocatalytic degradation --- benzene --- antibacterial --- copper oxide --- photocatalyst --- titanium dioxide --- thin film --- visible light --- photovoltaic conversion --- interfacial charge-transfer transition --- 7,7,8,8-tetracyanoquinodimethane --- Nb-doped TiO2 --- N-doped graphene quantum dots --- TiO2 --- photocatalytic performance --- pyridinic N --- graphitic N --- solid-phase photocatalytic degradation --- polyvinyl borate --- decahedral-shaped anatase titania particles --- {001} and {101} facets --- facet-selective metal photodeposition --- pH dependence --- zeta potential --- facet-selective reaction --- photocatalysis --- deNOxing --- Titania --- photophysics --- metal oxides --- environment --- 2D materials --- composite --- iron-doped TiO2 --- photocatalytic activity --- low UV irradiation --- hydroxyl radical --- estriol --- W-Mo dopants --- nanoparticles --- non-metal- doped TiO2 --- nitroaromatic compounds --- reduction --- selectivity --- Titanium dioxide --- bismuth molybdate --- lignin --- UV light --- Photo-CREC Water II reactor --- Palladium --- Hydrogen production --- Quantum Yield --- magnetic property --- reusable --- photoreduction --- microporous material --- adsorption --- air purification --- porous glass --- mesocrystals --- synthesis --- modification --- Ru-Ti oxide catalysts --- HCl oxidation --- oxygen species --- Ce incorporation --- active phase-support interactions --- bleached wood support materials --- 3D photocatalyst --- UV transmittance --- floatable --- recyclable --- TiO2C composite --- acid catalyst --- dehydration --- fructose --- 5-Hydroxymethylfurfural --- Microcystis aeruginosa --- microcystin --- controlled periodic illumination --- advanced oxidation process --- hexabromocyclododecane --- environmental management --- advanced oxidation processes --- energy band engineering --- morphology modification --- applications --- Titanium dioxide (TiO2) --- visible-light-sensitive photocatalyst --- N-doped TiO2 --- plasmonic Au NPs --- interfacial surface complex (ISC) --- selective oxidation --- decomposition of VOC --- carbon nitride (C3N4) --- alkoxide --- ligand to metal charge transfer (LMCT) --- hydrogen production --- TiO2-HKUST-1 composites --- solar light --- electron transfer --- graphene quantum dots --- heterojunction --- process optimization --- response surface methodology --- kinetic study --- Advanced oxidation processes (AOPs) --- TiO2 catalyst --- textile wastewater --- oxygen vacancy --- polymeric composites --- photoelectrochemistry --- co-modification --- solar energy conversion --- p-n heterojunction --- g-C3N4 --- charge separation --- semiconductors --- redox reactions --- band gap engineering --- nanostructures --- n/a --- in-situ formation --- anatase nanoparticles --- H-titanate nanotubes --- dual-phase --- low temperature
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