Photocatalytic Activities for Environmental Remediation and Energy Conversion PDF Download

Author: Hairus Abdullah
Publisher: Springer Nature
ISBN: 9811967482
Category : Technology & Engineering
Languages : en
Pages : 328

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Book Description
This book highlights sustainable methods with photocatalytic activities to remediate environment and for energy conversion. The related photocatalytic materials are discussed in detail. Some significant photocatalytic applications in degrading industrial pollutants that include different organic dyes, purifying the polluted air, converting CO2 to alcohol fuels, storing energy from sunlight as ammonia by converting N2 to NH3, and splitting water by optimizing the oxygen evolution process are thoroughly elucidated. The chapters introduce the necessary materials and results, leading to a better conceptualization in order to work in the field of photocatalysis. Some related perspectives and outlooks are discussed in the last chapter for possible future developments.

Author: Seema Garg
Publisher: Springer Nature
ISBN: 3031277074
Category : Science
Languages : en
Pages : 483

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Book Description
This book explores the modification of various synthesis processes to enhance the photocatalytic activity in varied applications in the fields of environmental remediation and energy production. It outlines the enhancement of photocatalytic activity via alloys synthesis, thin film coatings, electro-spun nanofibers and 3D printed photocatalysts. The book further states the diverse applications of materials for degrading organic pollutants and airborne pathogens, improving indoor air quality and as a potential antimicrobial agent. The application of photocatalysts in green organic synthesis, biomedical field and in hydrogen evolution are also presented in the book. It covers theoretical studies of photocatalytic material and conversion of CO2 to value added chemical feed stocks. The book is of relevance to researchers in academia and industry alike in the fields of material science, environmental science & technology, photocatalytic applications and in energy generation and conversion.

Author: Inamuddin
Publisher: Springer
ISBN: 3030049493
Category : Science
Languages : en
Pages : 273

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Book Description
This book presents photocatalysis as a state-of-art technology in energy production and conversion. The ever increasing demand for energy with growing economies has led to a dearth of energy sources. The exhaustive dependability on non-renewable resources of energy has not just depleted them but also lead to the birth of secondary problems such as pollution and climate change. The photoactive processes have opened a new window for the production of green energy and helped in environmental sustainability. The harnessing of renewable sources especially sun and water for fuel production and noxious gases reduction solve both the issues of pollution mitigation and energy crisis.

Author: Alagarsamy Pandikumar
Publisher: John Wiley & Sons
ISBN: 1119529891
Category : Science
Languages : en
Pages : 335

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Book Description
A comprehensive volume on photocatalytic functional materials for environmental remediation As the need for removing large amounts of pollution and contamination in air, soil, and water grows, emerging technologies in the field of environmental remediation are of increasing importance. The use of photocatalysis—a green technology with enormous potential to resolve the issues related to environmental pollution—breaks down toxic organic compounds to mineralized products such as carbon dioxide and water. Due to their high performance, ease of fabrication, long-term stability, and low manufacturing costs, photofunctional materials constructed from nanocomposite materials hold great potential for environmental remediation. Photocatalytic Functional Materials for Environmental Remediation examines the development of high performance photofunctional materials for the treatment of environmental pollutants. This timely volume assembles and reviews a broad range of ideas from leading experts in fields of chemistry, physics, nanotechnology, materials science, and engineering. Precise, up-to-date chapters cover both the fundamentals and applications of photocatalytic functional materials. Semiconductor-metal nanocomposites, layered double hydroxides, metal-organic frameworks, polymer nanocomposites, and other photofunctional materials are examined in applications such as carbon dioxide reduction and organic pollutant degradation. Providing interdisciplinary focus to green technology materials for the treatment of environmental pollutants, this important work: Provides comprehensive coverage of various photocatalytic materials for environmental remediation useful for researchers and developers Encompasses both fundamental concepts and applied technology in the field Focuses on novel design and application of photocatalytic materials used for the removal of environmental contaminates and pollution Offers in-depth examination of highly topical green-technology solutions Presents an interdisciplinary approach to environmental remediation Photocatalytic Functional Materials for Environmental Remediation is a vital resource for researchers, engineers, and graduate students in the multi-disciplinary areas of chemistry, physics, nanotechnology, environmental science, materials science, and engineering related to photocatalytic environmental remediation.

Author: Seema Garg
Publisher: Springer Nature
ISBN: 303077371X
Category : Science
Languages : en
Pages : 855

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Book Description
This book comprises a detailed overview on the role of photocatalysts for environmental remediation, hydrogen production and carbon dioxide reduction. Effective ways to enhance the photocatalytic activity of the material via doping, hybrid material, laser light and nanocomposites have been discussed in this book. The book also further elaborates the role of metal nanoparticles, rare earth doping, sensitizers, surface oxygen vacancy, interface engineering and band gap engineering for enhancing the photocatalytic activity. An approach to recover the photocatalytic material via immobilization is also presented. This book brings to light much of the recent research in the development of such semiconductor photocatalytic systems. The book will thus be of relevance to researchers in the field of: material science, environmental science & technology, photocatalytic applications, newer methods of energy generation & conversion and industrial applications.

Author: A. Pandikumar
Publisher: CRC Press
ISBN: 1000595099
Category : Science
Languages : en
Pages : 468

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Book Description
Clean environment and green energy are the basic requirements of a sustainable human life. Semiconductor materials play a crucial role in addressing the issues related to increased global energy demand and environmental remediation. The development of photocatalysts has experienced almost exponential progress since their popularization in the early 1970s. Therefore, researchers have started to consider the diversity of photocatalysts globally by approaching this domain from a materials science perspective for applications in various areas. Recently, heterojunction photocatalytic materials have attracted a great amount of multidisciplinary research to face the global concerns of energy production and environmental protection. The unique potential of these technologies has been the stimulus to develop heterojunction photocatalysts with improved structural, morphological, and electronic properties, effectively increasing their efficiency. This book overviews the latest advances in this field, offering insights into the materials and applications of the latest generation of photocatalytic materials. It presents the challenges, future directions, and strategies for design within the area of heterojunction photocatalysts and will be a useful resource to enhance understanding of students, researchers, and academicians for promoting research in this field.

Author: Hongqi Sun
Publisher: John Wiley & Sons
ISBN: 3527347186
Category : Science
Languages : en
Pages : 482

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Book Description
This comprehensive book systematically covers the fundamentals in solar energy conversion to chemicals, either fuels or chemical products. It includes natural photosynthesis with emphasis on artificial processes for solar energy conversion and utilization. The chemical processes of solar energy conversion via homogeneous and/or heterogeneous photocatalysis has been described with the mechanistic insights. It also consists of reaction systems toward a variety of applications, such as water splitting for hydrogen or oxygen evolution, photocatalytic CO2 reduction to fuels, and light driven N2 fixation, etc. This unique book offers the readers a broad view of solar energy utilization based on chemical processes and their perspectives for future sustainability.

Author: Ruowen Liang
Publisher: Mdpi AG
ISBN: 9783036588711
Category : Science
Languages : en
Pages : 0

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Book Description
Photocatalysis is an advanced technique that transforms solar energy into sustainable fuels and oxidizes pollutants via the aid of semiconductor photocatalysts. The main scientific and technological challenges toward effective photocatalysis are the stability, robustness, and efficiency of semiconductor photocatalysts. For major practical applications in energy conversion (i.e., hydrogen evolution, CO2 reduction, and oriented synthesis) and environmental remediation (i.e., air purification and antibacterial and wastewater treatment), highly efficient and stable photocatalysts need to be developed. This Special Issue collects published original researches on synthesizing novel photocatalytic materials and their application in energy conversion and environmental remediation.

Author: Xinchen Wang
Publisher: John Wiley & Sons
ISBN: 3527350500
Category : Technology & Engineering
Languages : en
Pages : 389

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Book Description
UV-Visible Photocatalysis for Clean Energy Production and Pollution Remediation Comprehensive resource detailing fundamentals of photocatalysis, clean energy production, and pollution treatment, as well as recent developments in each field UV-Visible Photocatalysis for Clean Energy Production and Pollution Remediation: Materials, Reaction Mechanisms, and Applications provides current developments in photocatalytic reactions for both inorganic and organic-based materials which operate under UV-visible light or sunlight irradiation, with a focus on the fundamentals and applications in clean energy production and pollution remediation. The text curates interesting and important research surrounding photocatalysis for hydrogen production, including the fundamentals and photocatalytic remediation of our better environments, which covers the reduction of CO2 and fixation of N2 with H2O under UV-visible light or sunlight irradiation. The first chapter of the book introduces these diverse subjects by including a brief history of the developments of photocatalysis research since around the 1960s. Specific sample topics covered in this book include: Visible-light active photocatalysts in pollutant degradation and conversion with simultaneous hydrogen production Application of S-scheme heterojunction photocatalyst and the role of the defects on the photocatalytic reactions on ZnO Strategies for promoting overall water splitting with particulate photocatalysts via single-step visible-light photoexcitation Polymeric carbon nitride-based materials in aqueous suspensions for water photo-splitting and photo-reforming of biomass aqueous solutions to generate H2 Visible light-responsive TiO2 thin film photocatalysts for the separate evolution of H2 and O2 from water For chemists, scientists, physicists, and engineers across a wide range of disciplines, UV-Visible Photocatalysis for Clean Energy Production and Pollution Remediation is an essential resource for understanding current developments in photocatalytic reactions on both inorganic and organic-based materials which operate under UV-visible light or sunlight irradiation.

Author: Xiangchao Meng
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
The basis of prosperity of 20th centrury is oil. As oil is going to be used up, people need to find alternatives to meet the earth's energy demand in 21st centrury. For each second, there are about 1.2×1017 J energy hitting the earth. The energy in 1 hour of sunlight is about 4.32×1020 J, which almost meets the energy consumed on earth in 2016. It determines solar energy may be a potential candidate to solve the energy crisis. As for techniques to utilize solar energy, the most popular one is using photovoltaic (PV) cells. PV cell is a device to convert solar energy into electricity. There are also some other techniques trying to utilize solar energy. Photocatalysis is one of them, which is to convert solar energy into chemical energy. Applications of photocatalysis have extended from hydrogen evolution via water splitting to environemtnal remediation, CO2/ N2 reduction and so on. Photocatalysis, as an advanced oxidation process, has been extensively studied and applied to the purification and remediation of contaminated water and wastewater, and exhibits advantages over conventional treatment technologies. When considering solar energy as an energy source for photocatalysis, it is key to prepare visible light-responsive materials. Bismuth-based semiconductors are promising materials as visible light-responsive photocatalysts primarily due to their suitable band gaps, well-dispersed valence bands, and commercial availabilities at reasonable costs, as well as the possibility of preparing them under mild conditions. Recent work focusing on the preparation, characterization and activity testing of bismuth-based photo-active materials as well as their associated photoreactor designs are introduced herein. In order to enhance the photocatalytic activities of the new materials, different precursors, additives, preparation procedures and process parameters, as well as surface treatments were explored to obtain binary and ternary heterostructures, with different doping, surface modification, nanoparticle sizes and morphologies. It was found that formation of heterojunction and loading metal nanoparticle on the surface are very effective to imrove the photocatalytic activity of the support. In this work, we found that palladium nanoparticles modified BiVO4 exhibited excellent activity in the decomposition of phenol, which was even higher than TiO2. To facilitate the separation process of catalysis particels from a slurry system, magnetically separable composites were also prepared, and it was found that it is very effective to remove the particles from the slurry system using external magnets. To further scale up this process, two different types of immbolized photoreactors (flat-plate and packed beads photoreactor) were also developed. Suggestions were made for further work in this research area.