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Photocatalysis: Fundamental Processes and Applications, Volume 32 in the Interface Science and Technology Series, discusses the fundamental aspects of photocatalysis and its process and applications to the decontamination of wastewater, hydrogen production via water splitting, and photo reduction of carbon dioxide to hydrocarbon.
Intro -- Photocatalysis: Fundamental Processes and Applications -- Contents -- Copyright -- Contributors -- Chapter 1: Electronic structure: From basic principles to photocatalysis -- 1.1. Introduction -- 1.1.1. Ternary oxide photocatalysts -- 1.1.1.1. Perovskite photocatalysts (ABO3 types) -- 1.1.1.1.1. SrTiO3 -- 1.1.1.1.2. NaTaO3 -- 1.1.1.1.3. KTaO3 -- 1.1.1.1.4. LiTaO3 -- 1.1.1.1.5. AgNbO3 -- 1.1.1.2. Ternary oxide (AB2O4 types) photocatalysts -- 1.1.1.2.1. CaIn2O4 -- 1.1.1.3. Ternary oxide (ABO2 types) photocatalysts -- 1.1.1.3.1. AgGaO2 -- 1.1.1.3.2. AgInO2 -- 1.1.1.3.3. AgFeO2 -- 1.1.1.3.4. AgAlO2 -- 1.1.1.4. Ternary oxide (ABO4 types) photocatalyst -- 1.1.1.4.1. BiVO4 -- 1.1.1.5. Ternary chalcogenide photocatalysts -- 1.1.1.5.1. AgInS2 -- 1.1.1.5.2. CuGaS2 -- 1.1.1.5.3. CuInS2 -- 1.1.1.5.4. CdIn2S4 -- 1.2. Quaternary photocatalysts -- 1.3. Degradation with various processes semiconductor-type photocatalysis -- 1.4. A summary of semiconductor physics -- 1.5. Conclusions -- Reference -- Chapter 2: Photodegradation processes -- 2.1. Introduction -- 2.1.1. UV-light-based photoremediation behavior of polychlorinated biphenyls in methanol -- 2.2. The mechanism of the photocatalytic process -- 2.2.1. Importance of the reduction pathway in photocatalytic oxidation reactions -- 2.2.2. Importance of the oxidation Pathway in photocatalytic reduction reactions -- 2.2.3. Photoelectrochemical property -- 2.2.4. Thermodynamic constraints for photocatalytic processes -- 2.3. The physical of photocatalytic mechanism -- 2.3.1. Semiconductor quantum dots and metal NPs -- 2.3.2. Measurement of the bandgap -- 2.3.3. The photonic BG -- 2.3.4. The electrochemical BG -- 2.3.5. Influence of crystal size -- 2.3.6. Spectra of emission -- 2.3.7. Interfacial electron transfer -- 2.4. Conclusions -- References.
Chapter 3: Using dyes to evaluate the photocatalytic activity -- 3.1. Introduction -- 3.2. Homogeneous photocatalysis -- 3.3. Heterogeneous photocatalysis -- 3.4. Photocatalysis process and the basic principles -- 3.5. Photocatalytic degradation and adsorbate regeneration -- 3.6. Using dyes for evaluating photocatalytic properties -- 3.7. Photocatalytic measurement -- 3.8. Photocatalytic process and its mechanisms -- 3.9. Photoinduced dye degradation and motivation -- 3.9.1. The early days -- 3.9.2. The second phase-development of new materials operating under the effect of visible light -- 3.10. Monitoring and the degradation kinetics -- 3.10.1. Dye concentration and its effect -- 3.10.2. Monitoring intermediate products -- 3.10.3. Results of irradiation intensity -- 3.11. Intermediate products formation during the process -- 3.12. Dye degradation by photocatalysis -- 3.12.1. Mechanism of photocatalytic activity -- 3.12.2. Desorption (regeneration of adsorbent) -- 3.13. Photocatalytic degradation of dyes and their immobilization by TiO2 -- 3.13.1. Commercial hair dyes and pollution aspects -- 3.13.2. Cetearyl alcohol -- 3.13.3. Distearoylethyl hydroxyethylmonium methosulfate -- 3.13.4. Ceteareth-20 -- 3.13.5. Citric acid -- 3.13.6. Methyl paraben -- 3.13.7. HC yellow no. 2 -- 3.13.8. HC yellow no. 4 -- 3.13.9. Basic yellow 57 -- 3.13.10. Acid green 25 -- 3.13.11. Basic orange 51 -- 3.13.12. HC blue 15 -- 3.13.13. Basic blue 99 -- 3.13.14. Brilliant blue FCF -- 3.13.15. Basic violet 2 -- 3.13.16. Acid violet 43 -- 3.14. Wastewater treatment by photocatalysis -- 3.15. Synthetic dyes and their derivatives -- 3.15.1. Poisonous dyes -- 3.15.2. Synthetic dyes and their photocatalytic decolorization -- 3.15.3. Photocatalytic decolorization of synthetic dyes -- 3.15.4. Photocatalytic decolorization of acid dyes-water-soluble anionics.
3.15.5. Photocatalytic decolorization of basic dyes-water-soluble cationics -- 3.15.6. Photocatalytic decolorization of disperse dyes-alkaline -- 3.15.7. Photocatalytic decolorization of vat dyes-water-soluble alkali metal salts -- 3.15.8. Photocatalytic decolorization of azoic dyes -- 3.15.9. Photocatalytic decolorization of sulfur dyes -- 3.15.10. Recent advances in synthetic dyes photocatalytic decolorization -- 3.16. Influence of dye type on the photocatalytic process -- 3.17. Photocatalytic degradation under the influence of visible light by using appropriate dyes -- 3.18. Preparation of titanium dioxide photocatalyst loaded onto activated carbon support using chemical vapor deposition -- 3.18.1. Characteristics of titania photocatalyst -- 3.18.2. Mechanism of photocatalytic reaction -- 3.18.3. Photocatalyst support -- 3.18.4. Activated carbon-supported photocatalyst -- 3.19. Preparation techniques of loading TiO2 onto catalyst supports -- 3.19.1. Chemical vapor deposition -- 3.19.2. Metal-organic chemical vapor deposition -- 3.19.3. Titania deposited on activated carbon support via MOCVD technique -- 3.19.4. Sonication and photocatalytic reactions -- 3.20. Graphene/semiconductor nanocomposites synthesis (GSNs) for heterogeneous photocatalytic decolorization of wastewate ... -- 3.20.1. In situ crystallization -- 3.20.1.1. Solution mixing -- 3.20.1.2. Hydrothermal/solvothermal process -- 3.20.1.3. Sol-gel method -- 3.20.1.4. Combustion synthesis -- 3.20.1.5. Electrochemical deposition -- 3.20.2. Ex situ hybridization -- 3.21. Photocatalytic degradation of synthetic dyestuffs by GSNs -- 3.21.1. Methylene blue -- 3.21.2. Methyl orange -- 3.21.3. Rhodamine B -- 3.21.4. Other dyes -- 3.22. Conclusions -- References -- Chapter 4: Advanced oxidation -- 4.1. Introduction -- 4.2. Generation of free radicals -- 4.2.1. Homogeneous processes.
4.2.2. Heterogeneous processes -- 4.3. Reaction mechanisms -- 4.4. Guidance for selecting an AOP -- 4.4.1. Criteria to be considered -- 4.4.2. Cost-related factors of ozone-based processes -- 4.4.3. Cost-related factors of UV-based processes -- 4.5. Full-scale applications -- 4.5.1. Ozone-based AOPs -- 4.5.2. UV-oxidation processes -- 4.5.3. Fenton process -- 4.5.4. Wet air oxidation -- 4.6. Catalysts and catalytic reactions -- 4.6.1. Characteristics of catalysts -- 4.6.2. Homogeneous catalysts -- 4.6.3. Heterogeneous catalysts -- 4.7. Conclusions -- References -- Chapter 5: Electronic structure of solids and molecules -- 5.1. Introduction -- 5.2. From many-body to one-particle system -- 5.2.1. Hartree-Fock approximation -- 5.2.2. Density functional theory (DFT) -- 5.2.2.1. Hohenberg-Kohn theorems -- 5.2.2.2. Kohn-Sham approach -- 5.2.2.3. Exchange-correlation energy -- 5.2.2.4. Basis set -- 5.2.2.4.1. Plane wave -- 5.2.2.4.2. Localized atomic (-like) orbitals (LCAO) -- 5.2.2.5. Pseudopotential method -- 5.3. Electron energy bands and bandgap -- 5.3.1. Band theory -- 5.3.2. Fermi level and fermi-dirac distribution function -- 5.3.3. Periodicity and Bloch's theorem -- 5.3.4. Energy band in a periodic potential -- 5.4. Ground state properties and electronic structure -- 5.4.1. Density of states (DOS) -- 5.5. Excited state properties and optical properties -- 5.5.1. Optical properties and DFT -- 5.5.2. Optical properties and TD-DFT -- 5.6. Results on some isolated molecules -- 5.6.1. Introduction -- 5.6.2. Results using siesta package -- 5.6.2.1. Computational methods and electronic properties -- 5.6.2.2. Anthracene -- 5.6.2.3. Indigo -- 5.6.2.4. Isoindigotin -- 5.6.3. Results using Gaussian package -- 5.6.3.1. Computational details -- 5.6.3.2. Molecular equilibrium geometry properties -- 5.6.3.3. Equilibrium energy -- 5.6.3.4. Absorption spectra.
5.6.3.5. Molecular orbital analysis -- 5.6.3.6. Natural bond orbital (NBO) analysis -- 5.7. Results on periodic system -- 5.7.1. Introduction -- 5.7.2. Computational details -- 5.7.3. Results -- References -- Chapter 6: The kinetic models in electron transfer processes in colloidal semiconductor photocatalysis -- 6.1. Introduction -- 6.1.1. Heterogeneous photocatalysts -- 6.1.2. Nanocrystal systems -- 6.2. Primary process using colloidal semiconductors -- 6.2.1. Light gathering with excitation bandgap of semiconductor -- 6.2.2. Capturing light using sensitized semiconductors -- 6.3. Photoproduced charge transfer using colloidal semiconductors -- 6.3.1. Thermodynamics in photoinduced charge transfer -- 6.3.2. Charge layer space in semiconductors -- 6.3.3. Characters of photoproduced carriers in space charge layer -- 6.3.4. The kinetics of photoinduced transferring charge -- 6.3.4.1. Photoinduced interfacial transferring charge along dynamic quenching -- 6.3.4.2. Photoinduced interfacial transferring charge along static quenching -- 6.4. Several electrochemical methods for featuring colloidal semiconductors -- 6.4.1. The optical rotating disc electrode (ORDE) -- 6.4.1.1. Steady-state dark electrochemistry of colloidal CdS -- 6.4.1.2. Steady-state photoelectrochemical feature of colloidal CdS -- 6.4.1.3. Transient photoelectrochemical feature of colloidal CdS -- 6.4.1.3.1. Theory of the transient photocurrent feature at the ORDE -- 6.4.1.3.2. Transient photocurrent tests at the ORDE -- 6.5. Concluding remark -- References -- Chapter 7: Current heterogeneous catalytic processes for environmental remediation of air, water, and soil -- 7.1. Introduction -- 7.2. Catalytic purification of gases -- 7.2.1. Catalytic decomposition of volatile organic compounds -- 7.2.1.1. Noble metal-based catalysts -- 7.2.1.2. Mixed noble-metal catalysts.
Interface science and technology ; v. 32