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Pd-based Membranes. Overview and Perspectives

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ISBN: 9783038977025 Year: Pages: 190 DOI: 10.3390/books978-3-03897-703-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemical Engineering --- Technology (General)
Added to DOAB on : 2019-04-05 10:34:31
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Palladium (Pd)-based membranes have received a great deal of attention from both academia and industry thanks to their ability to selectively separate hydrogen from gas streams. The integration of such membranes with appropriate catalysts in membrane reactors allows for hydrogen production with CO2 capture that can be applied in smaller bioenergy or combined heat and power (CHP) plants, as well as in large-scale power plants. Pd-based membranes are therefore regarded as a Key Enabling Technology (KET) to facilitate the transition towards a knowledge-based, low-carbon, and resource-efficient economy. This Special Issue of the journal Membranes on “Pd-based Membranes: Overview and Perspectives” contains nine peer-reviewed articles. Topics include manufacturing techniques, understanding of material phenomena, module and reactor design, novel applications, and demonstration efforts and industrial exploitation.

Nanomaterials for Environmental Purification and Energy Conversion

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ISBN: 9783039218141 9783039218158 Year: Pages: 264 DOI: 10.3390/books978-3-03921-815-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Environmental Engineering
Added to DOAB on : 2020-04-07 23:07:08
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The Special Issue, “Nanomaterials for Environmental Purification and Energy Conversion”, describes the significant and increasing role of nanomaterials in catalysis. It is believed that the most important factor for future human development could be to use nanomaterials (nanotechnology) to solve such critical issues facing humanity such as environment, water and energy. It should be also pointed out that properties of nanomaterials differ substantially from that of bulk materials of the same composition, resulting in high reactivity. Therefore, it creates new perspectives for the catalytic processes in the broad sense. This issue was mainly dedicated as a platform for the contributions from The Symposium on Nanomaterials for Environmental Purification and Energy Conversion (SNEPEC), which was held in Sapporo, Japan in winter 2018. Accordingly, this book compiles the current state-of-the-art of research in the area of novel photocatalysts and highlights current research directions in the fields of advanced oxidation technologies, material science and nanotechnology. Written by leading experts in the field of photochemistry and chemical engineering, a collection of 17 papers, including 16 research papers and one review, covers a broad range of topics focusing on the exceptional role of catalytic nanomaterials in solving environmental and energy problems of modern societies. The majority of papers present the importance of photocatalytic nanomaterials, especially for degradation of organic pollutants and inactivation of microorganisms, but there is also a strong representation of conventional catalysis, based on nanomaterials for important processes such as catalytic hydrogen production and organic synthesis.

Keywords

TiOF2 --- NaOH-modified TiOF2 --- network shape --- photocatalysis --- RhB --- chemical looping reforming of methane --- yttrium promoted oxygen carrier --- SBA-16 --- hydrogen production --- conductive cotton filter --- carbon nanotubes --- low-cost --- water purification --- gravity feed --- alcohols --- salicylic acid --- multiwalled carbon nanotubes --- synthesis gas --- titanium dioxide --- graphene --- photocatalysis --- visible light --- dyes --- Cu nanoparticles --- Cu/FTO nanocomposites --- H2 evolution --- visible light --- transfer efficiency --- chemical looping --- oxygen carrier --- hydrogen production --- narrow pore size distribution --- Fe2O3 dispersion --- texture modification --- photocatalytic reduction --- TiO2 --- anatase --- CO2 --- flue gas --- adsorption --- magnetic ZnO --- methylene blue --- photodegradation --- rectorite --- dimethyl carbonate --- carbon dioxide --- ceria nanowires --- oxygen vacancy --- Pt-Au --- XAFS --- BCLA --- zinc chromite --- photocatalysis activity --- oxalate --- humic acid --- photocatalysis --- CO2 reduction --- anatase --- polydopamine --- sensitization --- heterogeneous photocatalysis --- TiO2/Cu2O nanotubes --- anodization --- nanomaterials fabrication --- removal of microbiological pollutants --- photocatalysis --- nanocomposites --- heterojunction --- Cu2O --- urea --- polytriazine --- Z-scheme --- ionic liquids --- ionic liquid-assisted solvothermal reaction --- reaction time --- titanium dioxide --- heterogeneous photocatalysis --- visible light --- C/TiO2 --- photocatalysis --- solar radiation --- disinfection --- immobilized catalyst --- n/a

Microbial Fuel Cells 2018

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ISBN: 9783039215355 9783039215348 Year: Pages: 84 DOI: 10.3390/books978-3-03921-534-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Environmental Engineering
Added to DOAB on : 2019-12-09 11:49:15
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The rapid growth of global energy consumption and simultaneous waste discharge requires more sustainable energy production and waste disposal/recovery technology. In this respect, microbial fuel cell and bioelectrochemical systems have been highlighted to provide a platform for waste-to-energy and cost-efficient treatment. Microbial fuel cell technology has also contributed to both academia and industry through the development of breakthrough sustainable technologies, enabling cross- and multi-disciplinary approaches in microbiology, biotechnology, electrochemistry, and bioprocess engineering. To further spread these technologies and to help the implementation of microbial fuel cells, this Special Issue, entitled “Microbial Fuel Cells 2018”, was proposed for the international journal Energies. This Special Issue mainly covers original research and studies related to the above-mentioned topic, including, but not limited to, bioelectricity generation, microbial electrochemistry, useful resource recovery, system and process design, and the implementation of microbial fuel cells.

Membrane and Membrane Reactors Operations in Chemical Engineering

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ISBN: 9783039210220 9783039210237 Year: Pages: 154 DOI: 10.3390/books978-3-03921-023-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Environmental Engineering
Added to DOAB on : 2019-06-26 10:09:00
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This Special Issue is aimed at highlighting the potentialities of membrane and membrane reactor operations in various sectors of chemical engineering, based on application of the process intensification strategy. In all of the contributions, the principles of process intensification were pursued during the adoption of membrane technology, demonstrating how it may lead to the development of redesigned processes that are more compact and efficient while also being more environmental friendly, energy saving, and amenable to integration with other green processes. This Special Issue comprises a number of experimental and theoretical studies dealing with the application of membrane and membrane reactor technology in various scientific fields of chemical engineering, such as membrane distillation for wastewater treatment, hydrogen production from reforming reactions via inorganic membrane and membrane photoassisted reactors, membrane desalination, gas/liquid phase membrane separation of CO2, and membrane filtration for the recovery of antioxidants from agricultural byproducts, contributing to valorization of the potentialities of membrane operations.

Titanium Dioxide Photocatalysis

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ISBN: 9783038976943 9783038976950 Year: Pages: 208 DOI: 10.3390/books978-3-03897-695-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-06-26 08:44:06
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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.

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