Photocatalytic Degradation of Methyl Orange by TiO2

Photocatalytic Degradation of Methyl Orange by TiO2 PDF Author: Kae Yang Eng
Publisher:
ISBN:
Category :
Languages : en
Pages : 55

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Photocatalytic Degradation of Methyl Orange by TiO2

Photocatalytic Degradation of Methyl Orange by TiO2 PDF Author: Kae Yang Eng
Publisher:
ISBN:
Category :
Languages : en
Pages : 55

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MXene-Based Photocatalysts

MXene-Based Photocatalysts PDF Author: Zuzeng Qin
Publisher: CRC Press
ISBN: 1000541304
Category : Technology & Engineering
Languages : en
Pages : 179

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Book Description
MXene, a two-dimensional (2D) transition metal carbide, nitride, and carbonitride, was discovered in 2011. MXene has great potential as a cocatalyst in the field of photocatalysis due to its unique properties and structure. MXene-Based Photocatalysts: Fabrication and Applications introduces readers to the fundamentals, preparation, microstructure characterization, and a variety of applications of MXene-based photocatalysts. The book is a comprehensive reference for MXene materials and provides an overview of the current literature on MXene-based photocatalysts. FEATURES Discusses preparation methods of MXenes Describes the morphology and microstructure of MXenes Offers strategies for fabricating MXene-based photocatalysts Details the reaction mechanism of MXene-based photocatalysts Covers applications in photocatalytic water-splitting, photocatalytic CO2 reduction, photocatalytic degradation, photocatalytic nitrogen fixation, and photocatalytic H2O2 production This book serves as an invaluable guide for advanced students, industry professionals, professors, and researchers in the field of materials science and engineering, photocatalysis, energy, and environmental applications.

Titanium Dioxide

Titanium Dioxide PDF Author: Dongfang Yang
Publisher: BoD – Books on Demand
ISBN: 1789233267
Category : Technology & Engineering
Languages : en
Pages : 520

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Book Description
Titanium dioxide is currently being used in many industrial products. It provides unique photocatalytic properties for water splitting and purification, bacterial inactivation, and organics degradation. It has also been widely used as the photoanode for dye-sensitized solar cells and coatings for self-cleaning surfaces, biomedical implants, and nanomedicine. This book covers various aspects of titanium dioxide nanomaterials including their unique one-dimensional, two-dimensional, mesoporous, and hierarchical nanostructures and their synthetic methods such as sol-gel, hydrothermal, anodic oxidation, and electrophoretic deposition, as well as its key applications in environmental and energy sectors. Through these 24 chapters written by experts from the international scientific community, readers will have access to a comprehensive overview of the recent research and development findings on the titanium dioxide nanomaterials.

Photocatalytic Degradation of Dyes

Photocatalytic Degradation of Dyes PDF Author: Sushma Dave
Publisher: Elsevier
ISBN: 0128242027
Category : Technology & Engineering
Languages : en
Pages : 796

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Book Description
Photocatalytic Degradation of Dyes: Current Trends and Future Perspectives covers in detail current trends and future aspects on photocatalytic degradation of organic dyes using novel photocatalytic techniques such as metallic nanoparticles, heterogeneous and hybrid systems using visible light irradiation. It highlights the most recent scientific and technological achievements and importance of degradation of dyes in the textile effluent by simple environmental friendly approaches using eco-friendly catalysts. It is of assistance to everyone interested in bioremediation of effluents: professionals, consulting engineers, academicians, and research scholars as well. - Describes the basic photocatalytic techniques and their application in wastewater treatment - Covers the key reactive species accounting for the photodegradation of different dyes, providing helpful guidelines that could be applied to foster the development of efficient photodegradation systems - Includes Description of a wide variety of catalysts and their application in degradation of dyes in the effluent of variable matrices (such as textile effluent, pharmaceutical industry effluent, food industry effluent) - Presents the application of doped semiconductors in the degradation of dyes, hybrid systems and their importance in the dye degradation - Describes the biological synthesis of metallic nanostructures and their use in dye degradation using visible range of light irradiation - Discusses the mechanistic aspect of the dye degradation using photo catalysts

Photocatalytic Degradation of Methyl Orange by HKUST-1/TIO2 Thin Film

Photocatalytic Degradation of Methyl Orange by HKUST-1/TIO2 Thin Film PDF Author: Nurrul Ilani binti Zawawi
Publisher:
ISBN:
Category : Nanostructured materials
Languages : en
Pages : 58

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Photocatalytic Degradation of Methyl Orange by ZIF-8 Coated Tio2 Thin Film Using UV-A

Photocatalytic Degradation of Methyl Orange by ZIF-8 Coated Tio2 Thin Film Using UV-A PDF Author: Eugene Leong Eu Yeap
Publisher:
ISBN:
Category : Nanostructured materials
Languages : en
Pages : 66

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Photocatalytic Degradation of Methyl Orange Using TiO2 Impregnated Activated Carbon

Photocatalytic Degradation of Methyl Orange Using TiO2 Impregnated Activated Carbon PDF Author: Abubakar Muhammad
Publisher:
ISBN:
Category :
Languages : en
Pages : 67

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Photocatalytic Degradation of Methyl Orange Using Modified Mesoporous TiO2 and Au9 Clusters

Photocatalytic Degradation of Methyl Orange Using Modified Mesoporous TiO2 and Au9 Clusters PDF Author: Anahita Motamedisade
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
Au nanoclusters (Au NCs) exhibit intriguing size-dependent catalytic, electronic, and optical properties. This thesis uncovers the pivotal role of Au NCs in enhancing the photocatalytic efficiency of titanium dioxide (TiO2) through improved charge separation. -- As the catalytic efficiency of these NCs is closely linked to their size, preventing Au9 NCs' agglomeration becomes essential to enhance catalytic activity, particularly following heat treatment aimed at ligand removal. The study focuses on designing novel systems capable of adsorbing high levels of ultra-small Au9 NCs and preventing their agglomeration during deposition and annealing processes. -- The first approach to achieving this aim involves the preparation of mesoporous TiO2 (MTiO2) with a high density of surface defects, a high specific surface area, and a 3D pore network. These structures provide anchoring sites for the adsorption of Au9 NCs, curbing their mobility and suppressing the tendency to aggregate. Another strategy involves introducing functional groups on the mesoporous TiO2 surface through N or S functionalisation. These chemically modified MTiO2 surfaces can potentially establish a more robust bond between the Au9 NCs and the MTiO2 substrate, preventing agglomeration. -- Comprehensive characterisation techniques, including X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray Photoelectron Spectroscopy (XPS), Near-edge X-ray absorption fine structure (NEXAFS), Energy-Dispersive X-ray Spectroscopy (EDS), High-Resolution Transmission Electron Microscopy (HRTEM), and Scanning Transmission Electron Microscopy (STEM), provide detailed insights into the properties of the nanocomposites such as the phase type of TiO2, surface morphology and chemistry, and elemental composition, as well as size and dispersity of the Au9 NCs immobilised onto the substrate surface. -- A comprehensive investigation into the relative impacts of surface modification and functionalisation strategies on enhancing the loading of Au9 NCs while mitigating agglomeration is conducted using XPS. Subsequently, the most promising photocatalyst system is identified, and an in-depth analysis of its photocatalytic efficiency in the degradation of methyl orange dye is conducted. Reaction parameters are systematically examined, and their interrelationships are established by applying response surface methodology (RSM). -- In this study, the deposition of Au9 NCs onto S-functionalised mesoporous TiO2 (SMTiO2) is studied to produce efficient photocatalysts. The SMTiO2 substrates prevent the agglomeration of Au9 NCs and enhances the overall loading. Furthermore, nanocomposites of N-functionalised mesoporous TiO2 (NMTiO2) embedded with Au9 NCs are created using a chitosan-assisted soft templating method. The study evaluates the influence of the calcination atmosphere on substrate properties and the adsorption of Au9 NCs. The black NMTiO2 surfaces enhance loading and prevent agglomeration of Au9 NC even after heating, leading to improved photocatalytic effectiveness. -- Transitioning to more sustainable industrial processes is crucial for addressing global challenges. This study focuses on clean drinking water scarcity, specifically addressing hazardous run-offs from chemical industries. Methyl orange (MO) dye, a common environmental pollutant, is chosen as a model compound for studying photocatalytic degradation. The study emphasizes the examination of diverse parameters affecting the degradation of MO dye and study their relationship using Response Surface Methodology (RSM). -- In conclusion, the abstract encapsulates the objectives, methodologies, and key findings of the study, providing a comprehensive overview of the research conducted on Au9 NCs and their role in enhancing the photocatalytic efficiency of TiO2. In this comprehensive journey, our thesis elevates the art of surface modification, where science and creativity come together, opening new possibilities across various materials and systems.

Heterogeneous Photocatalysis

Heterogeneous Photocatalysis PDF Author: M. Schiavello
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 218

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Book Description
Photocatalysis is a reaction which is accelerated by light while a heterogeneous reaction consists of two phases ( a solid and a liquid for example). Heterogeneous Photocatalysis is a fast developing science which to date has not been fully detailed in a monograph. This title discusses the basic principles of heterogeneous photocatalysis and describes the bulk and surface properties of semiconductors. Applications of various types of photoreactions are described and the problems related to the modeling and design of photoreactors are covered.

Sustainable Development Through Engineering Innovations

Sustainable Development Through Engineering Innovations PDF Author: Harvinder Singh
Publisher: Springer Nature
ISBN: 9811595542
Category : Technology & Engineering
Languages : en
Pages : 753

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Book Description
This book comprises select peer-reviewed papers presented at the International Conference on Sustainable Development through Engineering Innovations (SDEI) 2020. It presents recent advances, new directions, and opportunities for sustainable and resilient approaches to design and protect the built-environment through engineering innovations & interventions. The topics covered are highly diverse and include all civil engineering and construction-related aspects such as construction and environmental Issues, durability and survivability under extreme conditions, design of new materials for sustainability, eco-efficient and ultra-high performance cementitious materials, embedded structural and foundation systems and environmental geomechanics. The book will be of potential interest to the researchers and students in the fields of civil engineering, architecture and sustainable development.