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Although the seminal work of Fujishima et al. dates back to 1971, TiO2 still remains the most diffused and studied semiconductor, employed in photo-oxidation processes for cleantech (i.e., polluted water and air treatment), in solar fuel production (mainly hydrogen production by water photo splitting), and in Carbon Capture and Utilization (CCU) processes by CO2 photoreduction. The eleven articles, among them three reviews, in this book cover recent results and research trends of various aspects of titanium dioxide photocatalysis, with the chief aim of improving the final efficiency of TiO2-based materials. Strategies include doping, metal co-catalyst deposition, and the realization of composites with plasmonic materials, other semiconductors, and graphene. Photocatalysts with high efficiency and selectivity can be also obtained by controlling the precise crystal shape (and homogeneous size) and the organization in superstructures from ultrathin films to hierarchical nanostructures. Finally, the theoretical modeling of TiO2 nanoparticles is discussed and highlighted. The range of topics addressed in this book will stimulate the reader’s interest as well as provide a valuable source of information for researchers in academia and industry.

UV-visible --- n/a --- oxidative reaction systems --- photodegradation --- nanospheres --- heterojunction --- Ag/AgCl@TiO2 fibers --- polymorphism --- XRD --- copper-modified titania --- ultrasonic vibration --- brookite --- TiO2 modification --- simulated Extended X-ray Adsorption Fine-Structure (EXAFS) --- nanorod spheres --- trapped electrons --- flame-spray pyrolysis --- titania/water interface --- microwave irradiation --- plasmonic photocatalyst --- graphene-TiO2 --- photocatalytic hydrogen production --- microstreaming --- B3LYP --- HRTEM --- hardness --- printing and dyeing wastewater --- SCC-DFTB --- TiO2 --- photoelectrochemistry --- titanium --- bulk defects --- methanol photo-steam reforming --- spray coating --- sol-gel --- FTIR --- S-doping --- photocatalysis --- sulfidation --- lattice defects --- polymorph --- anodization --- pine-cone TiO2 nanoclusters --- nanorod arrays --- formation mechanism --- Cu and Pt nanoparticles --- excitons --- TiO2 nanotubes --- adhesion --- trapping --- flexible substrates --- optical absorption --- large-sized films --- surface defects --- titanium dioxide --- accumulated electrons

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Visualizing chemical components in a specimen is an essential technology in many branches of science and practical applications. This book deals with electrochemical imaging techniques based on semiconductor devices with capability of spatially resolved sensing. Two types of such sensing devices have been extensively studied and applied in various fields, i.e., arrayed sensors and light-addressed sensors. An ion-sensitive field-effect transistor (ISFET) array and a charge-coupled device (CCD) ion image sensor are examples of arrayed sensors. They take advantage of semiconductor microfabrication technology to integrate a large number of sensing elements on a single chip, each representing a pixel to form a chemical image. A light-addressable potentiometric sensor (LAPS), on the other hand, has no pixel structure. A chemical image is obtained by raster-scanning the sensor plate with a light beam, which can flexibly define the position and size of a pixel. This light-addressing approach is further applied in other LAPS-inspired methods. Scanning photo-induced impedance microscopy (SPIM) realized impedance mapping and light-addressable electrodes/light-activated electrochemistry (LAE) realized local activation of Faradaic processes. This book includes eight articles on state-of-the-art technologies of light-addressing/chemical imaging devices and their application to biology and materials science.

CCD ion sensor --- multi-ion image --- CMOS technology --- ink-jet printing --- bioactive cations --- LAPS --- chemical imaging --- spatial and temporal resolution --- semiconductor --- microfluidics --- photoelectrochemistry --- InGaN/GaN epilayer --- cell imaging --- light-activated electrochemistry --- light-addressable potentiometric sensor --- chemical imaging sensor --- field-effect sensor --- light-addressable potentiometric sensor (LAPS) --- Lactobacillus brevis --- Escherichia coli --- Corynebacterium glutamicum --- cellular metabolism --- differential cell-based measurement --- multi-analyte analysis --- extracellular acidification --- DNA biosensor --- ZnO nanorod arrays --- label-free detection --- E. coli --- light-addressable electrode --- light-addressable cell stimulation and photoelectrochemistry --- photoelectrochemical deposition --- crevice corrosion --- potential distribution --- crevice gap

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This book is a printed edition of the Special Issue Crystal Chemistry of Zinc, Cadmium and Mercury that was published in Crystals

hydroxyl group --- bis(1 --- quinaldinic acid --- solidification --- xanthate --- wurtzite --- mechanical --- EBSD --- oxo-centred polyhedra --- coordination polymer --- precipitation --- 5-thiophenedicarboxylic acid --- defects in semiconductors --- zinc(II) complexes --- precursor --- nanometer zinc oxide --- zinc --- thermal analysis --- transmission electron microscopy (TEM) --- crystal chemistry --- pyridine --- dithiocarbamate --- high magnetic field --- index of X-ray powder diffraction data --- 1 --- hydrogen bonding --- 2 --- luminescence --- cadmium --- interface structure --- 3-bis(1 --- mercury --- aqueous solution method --- crystallography --- growth mechanism --- PL spectra --- phonon dispersion --- coordination polymers --- 4-triazol-1-yl)propane --- CdZnTe --- oxochromates(VI) --- Ni3Sn structure type --- structural chemistry --- dithiophosphates --- traveling heater method --- ZnO nanorod arrays --- copper amalgams --- dental amalgams --- unusual coordination modes --- CdS --- zinc-rich crystal --- 4-triazol-1-yl)methane --- elastic --- crystal structure --- phonon --- bitopic ligand --- room-temperature solid state reaction --- zinc complex --- characterization --- crystal engineering --- ZnS --- hydrogen bond

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This book is a printed edition of the Special Issue Crystal Chemistry of Zinc, Cadmium and Mercury that was published in Crystals

hydroxyl group --- bis(1 --- quinaldinic acid --- solidification --- xanthate --- wurtzite --- mechanical --- EBSD --- oxo-centred polyhedra --- coordination polymer --- precipitation --- 5-thiophenedicarboxylic acid --- defects in semiconductors --- zinc(II) complexes --- precursor --- nanometer zinc oxide --- zinc --- thermal analysis --- transmission electron microscopy (TEM) --- crystal chemistry --- pyridine --- dithiocarbamate --- high magnetic field --- index of X-ray powder diffraction data --- 1 --- hydrogen bonding --- 2 --- luminescence --- cadmium --- interface structure --- 3-bis(1 --- mercury --- aqueous solution method --- crystallography --- growth mechanism --- PL spectra --- phonon dispersion --- coordination polymers --- 4-triazol-1-yl)propane --- CdZnTe --- oxochromates(VI) --- Ni3Sn structure type --- structural chemistry --- dithiophosphates --- traveling heater method --- ZnO nanorod arrays --- copper amalgams --- dental amalgams --- unusual coordination modes --- CdS --- zinc-rich crystal --- 4-triazol-1-yl)methane --- elastic --- crystal structure --- phonon --- bitopic ligand --- room-temperature solid state reaction --- zinc complex --- characterization --- crystal engineering --- ZnS --- hydrogen bond