Note: Intro -- Preface -- Contents -- 1 Green Approach: Microbes for Removal of Dyes and Metals via Ion Binding -- Abstract -- 1.1 Introduction -- 1.2 Pollutants in the Environment -- 1.2.1 Toxic Metals -- 1.2.2 Triphenylmethane Dyes -- 1.3 Bioremediation Approaches in Removing Pollutants -- 1.3.1 Non-microbial Strategies -- 1.3.2 Microbial-Based Strategies -- 1.4 Mechanisms for Removal of Pollutant Ions -- 1.4.1 Mechanisms for Removal of Metal Ions -- 1.4.2 Mechanisms for Removal of Dyes -- 1.5 Innovations in the Removal of Pollutant Ions -- 1.6 Conclusions and Future Prospects -- Acknowledgements -- References -- 2 Removal of Heavy Metal from Wastewater Using Ion Exchange Membranes -- Abstract -- 2.1 Introduction -- 2.2 Heavy Metal -- 2.2.1 Chromium -- 2.2.2 Nickel -- 2.2.3 Copper -- 2.2.4 Zinc -- 2.2.5 Cadmium -- 2.2.6 Mercury -- 2.2.7 Lead -- 2.3 Physical Treatment Methods -- 2.3.1 Ultrafiltration -- 2.3.2 Nanofiltration -- 2.3.3 Reverse Osmosis -- 2.3.4 Forward Osmosis -- 2.3.5 Adsorption -- 2.4 Chemical Treatment Methods -- 2.4.1 Electrodialysis Method -- 2.4.2 Fuel Cell Method -- 2.5 Remaining Challenges and Perspectives -- 2.6 Conclusion -- Acknowledgements -- References -- 3 Separation and Purification of Uncharged Molecules -- Abstract -- 3.1 Introduction -- 3.2 Separation and Purification of Vitamin B12 -- 3.2.1 Downstream Processing of Vitamin B12 for Measurement -- 3.3 Separation and Purification of Haemoglobin -- 3.4 Separation and Purification of Uncharged Dyes -- 3.4.1 Purification and Separation of Dyes -- 3.5 Conclusion -- References -- 4 Aluminosilicate Inorganic Polymers (Geopolymers): Emerging Ion Exchangers for Removal of Metal Ions -- Abstract -- 4.1 Introduction -- 4.2 Methodology and Calculations -- 4.2.1 Terminology: Ion Exchange or Adsorption -- 4.2.2 Evidence for Ion Exchange. , 4.2.3 Modeling of Adsorption of Metal Ions on Geopolymers -- 4.2.4 Geopolymer Preparation -- 4.2.5 Washing of the Geopolymeric Adsorbent -- 4.2.6 Comparison Between Geopolymers and Zeolites -- 4.2.7 Geopolymers as Ion Exchangers -- 4.2.7.1 Geopolymers as Ion Exchangers for Alkali Metal Ions -- 4.2.7.2 Geopolymers as Ion Exchangers for Ammonium Ion -- 4.2.7.3 Geopolymers as Ion Exchangers for Alkaline Earth Metals -- 4.2.7.4 Geopolymers as Ion Exchangers for Heavy Metals -- Metakaolin-Based Geopolymers -- Fly Ash-Based Geopolymers -- Zeolite-Based Geopolymers -- 4.2.7.5 Geopolymers as Ion Exchangers/Adsorbents for Cationic Organic Dyes -- 4.2.8 Comparison of Geopolymers with Zeolites -- 4.2.8.1 Synthesis Conditions -- 4.2.8.2 Crystallinity -- 4.2.8.3 Surface Area and Porosity -- 4.2.8.4 Cation Exchange Capacity -- 4.2.8.5 Selectivity for Metal Ions -- 4.2.8.6 Stability in Acidic Solutions -- 4.2.8.7 Thermal Stability -- 4.2.8.8 Mechanical Strength -- 4.2.8.9 Regeneration -- 4.2.9 Stabilization/Solidification/Encapsulation of Ion Exchangers in Geopolymers -- 4.3 Concluding Remarks -- References -- 5 Microwave-Assisted Hydrothermal Synthesis of Agglomerated Spherical Zirconium Phosphate for Removal of Cs+ and Sr2+ Ions from Aqueous System -- Abstract -- 5.1 Introduction -- 5.2 Materials and Methods -- 5.2.1 Preparation of Agglomerated Spherical Zirconium Phosphate -- 5.2.2 Characterization -- 5.2.3 Ion Exchange Properties -- 5.2.4 Elution Behaviour -- 5.2.5 Distribution Studies -- 5.3 Results and Discussion -- 5.3.1 Fourier-Transform Infrared (FT-IR) Characterization -- 5.3.2 Powder X-ray Diffraction Studies -- 5.3.3 Scanning Electron Microscopy (SEM) and Energy Dispersive (EDS) Characterization -- 5.3.4 Zeta and Surface Area Analysis -- 5.3.5 Ion Exchange Characteristics -- 5.3.6 Mechanism of Sr2+ Interaction with Zirconium Phosphate -- 5.4 Conclusion. , Acknowledgements -- References -- 6 Metal Hexacyanoferrates: Ion Insertion (or Exchange) Capabilities -- Abstract -- 6.1 Introduction -- 6.2 Ion Exchange -- 6.2.1 Ion Exchange in MHCF at Work: Potentiometric Ion Sensors -- 6.2.2 An Ion Exchange-Based Approach for the Recovery of Metal Ions: The Case of Cesium and Thallium -- 6.2.3 Electrochemically Driven Ion Exchange -- 6.2.4 Reversible Ion Insertion in Battery Systems -- 6.3 Conclusion -- References -- 7 Biosorbents and Composite Cation Exchanger for the Treatment of Heavy Metals -- Abstract -- 7.1 Introduction -- 7.2 Agro-Based Biosorbents for Heavy Metal Removal -- 7.3 Biopolymers -- 7.3.1 Functional Groups -- 7.3.2 Cellulose -- 7.3.3 Chitosan -- 7.3.4 Nanofiber Membranes and Packed-Bed Adsorbers -- 7.4 Composite Ion Exchangers -- 7.5 Conclusion and Future Outlook -- References -- 8 Rare Earth Elements-Separation Methods Yesterday and Today -- Abstract -- 8.1 Introduction -- 8.2 Rare Earth Elements -- 8.2.1 General Characteristics -- 8.2.2 The Occurrence of Rare Earth Elements -- 8.2.3 Physicochemical Properties of Rare Earth Elements -- 8.2.4 Application of Rare Earth Metals -- 8.2.5 Production and Consumption of Rare Earth Elements in the World -- 8.3 Rare Earth Element Recovery from Nickel-Metal Hydride Batteries -- 8.4 Rare Earth Element Recovery from Permanent Magnets -- 8.5 Separation of High-Purity Rare Earth Elements -- 8.5.1 Separations of Rare Earth Elements of High Purity Using Cation Exchangers -- 8.5.2 Separations of Rare Earth Elements of High Purity Using Anion Exchangers -- 8.5.3 Separations of Rare Earth Elements of High Purity Using Chelating Ion Exchangers -- 8.6 Current Technologies -- 8.7 Conclusions -- References -- 9 Sequestration of Heavy Metals from Industrial Wastewater Using Composite Ion Exchangers -- Abstract -- 9.1 Introduction -- 9.2 Ion-Exchange Materials. , 9.2.1 Organic Materials -- 9.2.2 Inorganic Materials -- 9.2.3 Composite Materials -- 9.2.3.1 Hybrid Materials -- 9.2.3.2 Nanocomposite -- 9.3 Mechanism of Ion-Exchange Process -- 9.4 Conclusion -- Acknowledgements -- References -- 10 Applications of Organic Ion Exchange Resins in Water Treatment -- Abstract -- 10.1 Introduction -- 10.2 Removal of Heavy Metals -- 10.3 Removal of Organics -- 10.3.1 Natural Organic Matter (NOM) -- 10.3.2 Disinfection by-Products (DBPs) -- 10.3.3 Surfactants -- 10.3.4 Pharmaceuticals -- 10.3.5 Dyes -- 10.3.6 Small Organic Matter -- 10.4 Desalination -- 10.5 Boron Removal -- 10.6 Removal of Anions -- 10.7 Removal of Cations -- 10.7.1 Hardness -- 10.7.2 Ammonium -- 10.8 Conclusions -- References.

Note: Intro -- Contents -- 1 Chemical Valorization of CO2 -- Abstract -- 1 Introduction -- 2 CO2-Derived Fuels and Chemicals -- 2.1 Methane -- 2.2 Methanol -- 2.3 Dimethyl Ether -- 2.4 Formic Acid -- 2.5 Ethanol -- 2.6 CO2-Fischer-Tropsch Liquid Fuels -- 2.7 Carbon Monoxide-Syngas -- 3 CO2 Chemically Derived Materials -- 3.1 Polymers -- 3.2 CO2-Derived Building Materials -- 4 Conclusions -- References -- 2 Progress in Catalysts for CO2 Reforming -- Abstract -- 1 Introduction -- 2 Technologies for Capturing and Storing Carbon Dioxide -- 3 Technologies for Using Carbon Dioxide -- 4 Methane Dry Reforming Process -- 4.1 Progress in Catalysts for Methane Dry Reforming (1928-1989) -- 4.2 Progress in Catalysts for Methane Dry Reforming (1990-1999) -- 4.3 Progress in Catalysts for Methane Dry Reforming (2000-2009) -- 4.4 Progress in Catalysts for Methane Dry Reforming (2010-2019) -- 4.5 Current Status in the Catalysts for Methane Dry Reforming -- 5 Dry Reforming of Other Compounds -- 6 Use of Steam or Oxygen in Dry Reforming of Methane and Other Compounds -- 7 Solid Oxide Fuel Cells Fueled with Biogas -- 8 Commercialization of Dry Reforming Process -- 9 Conclusions -- References -- 3 Fuel Generation from CO2 -- Abstract -- 1 Introduction -- 2 Approaches for Directly Converting CO2 to Fuels -- 2.1 Pure CO2 Decomposition Technology -- 2.2 Reagent-Based CO2 Conversion Technology -- 2.2.1 Dry Deformation of Methane Technology -- 2.2.2 Catalytic Hydrogenation of CO2 -- 3 Biological CO2 Fixation for Fuels -- 3.1 Thermochemical Conversion -- 3.1.1 Torrefaction -- 3.1.2 Pyrolysis -- 3.1.3 Thermochemical Liquefaction -- 3.1.4 Gasification -- 3.1.5 Direct Combustion -- 3.2 Biochemical Conversion -- 3.2.1 Biodiesel -- 3.2.2 Bioethanol -- 3.2.3 Biomethane -- 3.2.4 Biohydrogen -- 3.2.5 Bioelectricity -- 3.2.6 Volatile Organic Compounds. , 4 Conclusion and Future Perspectives -- References -- 4 Thermodynamics of CO2 Conversion -- Abstract -- 1 Introduction -- 2 Carbon Dioxide Capture -- 3 Carbon Dioxide Utilisations -- 4 Thermodynamic Considerations -- 5 Thermodynamics of CO2 -- 5.1 The Thermodynamic Attainable Region (AR) -- 5.2 Using Hess's Law to Transform the Extents to G-H AR @ 25˚C -- 5.3 Increasing Temperature on G-H AR -- 6 Conclusion -- Acknowledgements -- References -- 5 Enzymatic CO2 Conversion -- Abstract -- 1 Introduction -- 1.1 CO2 as a Greenhouse Gas -- 1.2 Carbon Capture, Storage, and Utilization -- 1.3 CO2 as a Chemical Feedstock -- 1.4 CO2 Conversion with Enzymes -- 2 Natural Conversion of CO2 in Cells -- 3 Enzymatic Conversion of CO2 in Cells -- 3.1 Conversion of CO2 by a Single Enzyme (in vitro) -- 3.1.1 Formate Dehydrogenase -- 3.1.2 Carbonic Anhydrase -- 3.1.3 Carbon Monoxide Dehydrogenase -- 3.1.4 Ribulose-1,5-bisphosphate Carboxylase/Oxygenase (RuBisCO) -- 3.2 Conversion of CO2 by a Multi-Enzyme Cascade in vitro -- 3.3 Other Ways (Photocatalytic CO2 Methanation) -- 4 Industrial Applications -- 4.1 Alcohols -- 4.2 Organic Acids -- 4.3 Terpenoids -- 4.4 Fatty Acids -- 4.5 Polyhydroxyalkanoates -- 4.6 Calcium Carbonate -- 5 Summary and Future Prospects -- References -- 6 Electrochemical CO2 Conversion -- Abstract -- 1 Introduction -- 2 Electrochemical CO2 Conversion -- 2.1 Fundamentals of the Process -- 2.2 Variants of Electrochemical Conversion of CO2 -- 2.2.1 Aqueous Electrolytes -- 2.2.2 Non-Aqueous Electrolytes -- 2.2.3 Solid Oxide Electrolytes -- 2.2.4 Molten Salt Electrolytes -- 3 Electrochemical CO2 Conversion from Molten Salts -- 3.1 Present State of Electrochemical Reduction of CO2in Molten Salts for the Production of Solid-Phase Carbonaceous Nanomaterials -- 3.2 Direct Electrochemical Reduction of CO2 in Chloride Melts. , 3.3 Indirect Electrochemical Reduction of CO2 in Molten Salts -- 3.4 The Mechanisms of Electrode Reactions Occurring at the Cathode and Anode -- 3.5 Prospects for CO2 Conversion in Molten Salts -- 4 Conclusions -- References -- 7 Supercritical Carbon Dioxide Mediated Organic Transformations -- Abstract -- 1 Introduction -- 2 Applications of Supercritical Carbon Dioxide -- 2.1 Hydrogenation Reactions -- 2.2 Asymmetric Hydrogenation Reactions -- 2.3 Diels-Alder Reaction -- 2.4 Coupling Reaction -- 2.5 Oxidation Reaction -- 2.6 Baeyer-Villiger Oxidation Reaction -- 2.7 Iodination Reaction -- 2.8 Polymerization Reaction -- 2.9 Carbonylation Reaction -- 2.9.1 Acetalization Reaction -- 2.9.2 Olefin Metathesis Reaction -- 2.9.3 Synthesis of heterocycles -- Synthesis of α-alkylidene Cyclic Carbonates -- Synthesis of 4-Methyleneoxazolidin-2-Ones -- Synthesis of 5-Alkylidene-1, 3-Oxazolidin-2-Ones -- Synthesis of 6-Phenyl-3a, 4-Dihydro-1H-Cyclopenta[C]furan-5(3H)-One -- Synthesis of 3, 4, 5, 6-Tetraethyl-2H-Pyran-2-One -- 3 Conclusions -- Acknowledgements -- References -- 8 Theoretical Approaches to CO2 Transformations -- Abstract -- 1 Carbon Dioxide Properties -- 2 CO2 Transformation as an Undeniable Necessity -- 3 CO2 Activation -- 3.1 Methodologies of CO2 Activation -- 4 Theoretical Insight of CO2 Transformation -- 4.1 The Theoretical Approach in CO2 Conversion to Value-Added Chemicals -- 4.1.1 Carbon Monoxide -- 4.1.2 Methane -- 4.1.3 Methanol -- 4.1.4 Formic Acid -- 4.1.5 Heterocycles -- Cyclic Carbonates -- Cyclic Carbamate -- Quiznazoline-2,4(1H,3H)-Dione -- 4.1.6 Summary and Outlook -- 5 Theoretical Designing of Novel Catalysts Based on DFT Studies -- 5.1 Theoretical Designing: Problems and Opportunities -- 6 Conclusion -- References -- 9 Carbon Dioxide Conversion Methods -- Abstract -- 1 Introduction -- 2 Molecular Structure of CO2. , 3 Thermo-Kinetics of CO2 Conversion -- 4 CO2 Conversion Methods and Products -- 4.1 Fischer-Tropsch Gas-to-Liquid (GTL) -- 4.2 Mineralization -- 4.3 Chemical Looping Dry Reforming -- 4.4 Enzymatic Conversion -- 4.5 Photocatalytic and Photo-Electrochemical Conversion -- 4.6 Thermo-Chemical Conversion -- 4.7 Hydrogenation -- 4.8 Reforming -- 5 Economic Assessment of CO2Alteration to Valuable Products -- 5.1 Syngas -- 5.2 Methanol -- 5.3 Formic Acid -- 5.4 Urea -- 5.5 Dimethyl Carbonate (DMC) -- 6 Conclusions and Future Perspective -- Acknowledgements -- References -- 10 Closing the Carbon Cycle -- Abstract -- 1 Introduction -- 2 Methods to Capture CO2 -- 3 CO2 Capture Technologies -- 4 CO2 Capture from the Air -- 5 Biomass and Waste-Based Chemicals -- 6 Advantages of Biomass-Based Chemicals -- 7 Replacement of Carbon-Based Energy Resources -- 8 Biomass Energy -- 9 Wind Energy -- 10 Solar Energy -- 11 Ocean Energy -- 12 Geothermal Energy -- 13 Hydrothermal Energy -- 14 Conclusions -- References -- 11 Carbon Dioxide Utilization to Energy and Fuel: Hydrothermal CO2 Conversion -- Abstract -- 1 Introduction -- 2 Hydrothermal CO2 Conversion -- 2.1 Metals and Catalysts as Reductant -- 2.2 Organic Wastes as Reductant -- 2.3 Inorganic Wastes as Reductant -- 2.4 Biomass as Reductant -- 3 Conclusion -- References -- 12 Ethylenediamine-Carbonic Anhydrase Complex for CO2 Sequestration -- 1 Introduction -- 2 An Overview of Carbonic Anhydrase (CA) -- 3 Mechanism of Action for Biocarbonate Formation -- 4 Historical Background of Carbonic Anhydrase -- 5 Sources of Carbonic Anhydrase -- 6 Carbonic Anhydrase in Microorganism -- 6.1 Micrococcus Lylae, Micrococcus Luteus, and Pseudomonas Fragi -- 6.2 Bacillus Subtilis and Citrobacter Freundii -- 6.3 Neisseria Gonorrhoeae -- 6.4 Helicobacter Pylori -- 7 Plant Carbonic Anhydrase -- 8 Overview of CO2. , 9 Sources of Carbon Dioxide (CO2) -- 10 Effect of Carbon Dioxide (CO2) -- 11 Carbon Dioxide Capturing -- 12 Carbon Dioxide (CO2) Sequestration -- 13 Carbon Dioxide (CO2) Sequestration by Carbonic Anhydrase -- 14 Separation System for CO2 Sequestration -- 15 Cryogenic Separation -- 16 Membrane Separation -- 17 Absorption -- 18 Adsorption -- 19 Bioreactors for CO2 Sequestration -- 20 Carbonic Anhydrase Immobilization -- 21 Ethylenediamine for Carbon Dioxide (CO2) Capturing -- 22 CO2 Capturing and Sequestration with Ethylenediamine-Carbonic Anhydrase Complex -- 23 CO2 Capturing and Sequestration Design and Optimization: Challenges and Future Prospects -- 24 Conclusion -- References -- 13 Green Pathway of CO2 Capture -- Abstract -- 1 Introduction -- 2 Molecular Structure of Carbon Dioxide -- 3 CO2 Capture System -- 3.1 Post-Combustion System -- 3.2 Pre-Combustion System -- 3.3 Oxy-Fuel Combustion System -- 4 Absorption Technology -- 4.1 Green Absorption with Ionic Liquids -- 4.1.1 Properties and Uses of Ionic Liquids -- 4.1.2 CO2 Solubility in PILs -- 4.1.3 CO2 Absorption in PILs with Carboxylate Anion -- 4.2 Reaction Mechanism Involved in CO2-Absorption -- 5 Adsorption Technology -- 5.1 Organic Adsorbents -- 5.1.1 Activated Charcoal -- 5.1.2 Biochar -- 5.1.3 Metal-Organic Frameworks (MOFs) -- 5.2 Other CO2 Adsorbents -- 5.2.1 Metal Oxide-Based Absorbents -- 5.2.2 Zeolites -- 5.3 Biological Processes of CO2Sequestration -- 5.3.1 Carbon Utilization by Forest and Agricultural Management -- 5.3.2 Ocean Fertilization -- 5.3.3 CO2 Capture by Microalgae -- 5.4 Electrochemical Ways for CO2 Capture -- 6 Conclusion -- References -- 14 Carbon Derivatives from CO2 -- Abstract -- 1 Introduction -- 2 Artificial Photoreduction -- 3 Electrochemical Reduction -- 4 Hydrogenation -- 5 Synthesis of Organic Carbonates -- 6 Reforming. , 7 Photocatalytic Reduction of CO2 with Water.