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Photocatalytic Degradation Of Dyes

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Photocatalytic Degradation of Dyes

Photocatalytic Degradation of Dyes Book
Author : Sushma Dave,Jayashankar Das,Maulin P. Shah
Publisher : Elsevier
Release : 2021-08-26
ISBN : 0128242027
Language : En, Es, Fr & De

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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 Dyes and Pesticides in the Presence of Ions

Photocatalytic Degradation of Dyes and Pesticides in the Presence of Ions Book
Author : Kwena Yvonne Pete
Publisher : Unknown
Release : 2015
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Photocatalytic Degradation of Dyes and Pesticides in the Presence of Ions book written by Kwena Yvonne Pete, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Photocatalytic Degradation of Dyes Using M2Mo3O12 XMoO3 x Fe Bi

Photocatalytic Degradation of Dyes Using M2Mo3O12 XMoO3  x Fe  Bi  Book
Author : Paila Suresh,Tadi Narasimha Murthy
Publisher : Unknown
Release : 2017-12-04
ISBN : 9783330044296
Language : En, Es, Fr & De

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Book Description :

Download Photocatalytic Degradation of Dyes Using M2Mo3O12 XMoO3 x Fe Bi book written by Paila Suresh,Tadi Narasimha Murthy, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Photocatalytic Degradation of an Azo Dye Over Zeolite Supported Titanium Dioxide Catalyst

Photocatalytic Degradation of an Azo Dye Over Zeolite Supported Titanium Dioxide Catalyst Book
Author : Desiree A. Young
Publisher : Unknown
Release : 2003
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Investigates the photocatalytic degradation of an azo dye using zeolite supported TiO2 catalysists. Using the microporous NA-Y molecular sieve, this study examines the degradation under different parameters (pH, temperature, and initial dye concentration) to evaluate the effect over dye degradation. Also seeks to identify the species in the dye solution once mineralization occurred.

Photocatalytic Degradation of Azo Dyes in Aqueous Solution Using Mesoporous assembled TiO2 Nancorystal Photocatalyst

Photocatalytic Degradation of Azo Dyes in Aqueous Solution Using Mesoporous assembled TiO2 Nancorystal Photocatalyst Book
Author : Patladda Wongkalasin
Publisher : Unknown
Release : 2009
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Photocatalytic Degradation of Azo Dyes in Aqueous Solution Using Mesoporous assembled TiO2 Nancorystal Photocatalyst book written by Patladda Wongkalasin, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

TiO2 Nanostructures for Photocatalytic Degradation of Organic Pollutants

TiO2 Nanostructures for Photocatalytic Degradation of Organic Pollutants Book
Author : Dessy Ariyanti
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Wastewater consists of various colloidal particulates, pathogenic microorganisms, and organic pollutants. The discharge of untreated wastewater with a large quantity of organic pollutants does not only lead to the eutrophication and human health risks, but also contributes significantly to Green House Gas (GHG) emissions in the form of nitrous oxide and methane. To date, the most feasible technology in the research of organic wastewater treatment is photocatalysis using semiconductor metal oxide TiO2. By the illumination of UV light, TiO2 generate hydroxyl radicals (•OH) which can further assist the decomposition and mineralization of organic compound. Although the superiority of TiO2 among photoactive materials has been established, there are still some space related to its performance and efficiency that can be improved further such as the process optimization, morphology modification and improvement of their optical properties. In this thesis, the research mainly focuses on the application of TiO2 for organic degradation and the development of TiO2 photocatalyst, which include: (1) investigation on TiO2 photocatalysis for mixed dyes degradation in a photo-reactor (PR) and in a submerged membrane photo reactor (SMPR) and (2) investigation on the morphology modification by employing alkaline hydrothermal process and surface modification through chemical reduction to the improvements of material properties and photocatalytic activity of TiO2. The results of the study on TiO2 photocatalysis for dyes degradation in a binary system indicate that in the binary or even more complex systems, except for the degradation kinetics, the mechanism, and pathway follow those of in a single system. The reactions will eventually end up with total mineralization of organic dyes, showing the effectiveness of TiO2 photocatalysis. As the effectiveness of TiO2 photocatalysis for dyes degradation has been proven, further improvement in the TiO2 catalyst recovery obviously added more value to the process technically and economically. This is developed by integrating the photo-reactor with membrane filtration system (SMPR) for simultaneous dyes degradation and TiO2 catalyst recovery. Compared to the conventional photo-reactor, SMPR offer additional hydrodynamic force in the solution by its catalyst recovery activity that can improve photocatalytic activity up to 20%. In addition, by applying low flux (66 L/m2h), low concentration of catalyst (0.5 g/L), and aeration (1.3 L/min) can give an optimum photocatalytic performance as well as optimum membrane filtration performance. On the development of TiO2 catalyst, morphology modification via hydrothermal methods with operating condition 180oC for 20 h followed by annealing at 500oC has successfully produced TiO2 nanoribbon with dimensions 200-300 nm in width and several microns in length and possessed relatively high surface area and pore volume that improve the photocatalytic activity. This nanostructured can be used to develop multifunction membrane material for effective photocatalysis. Another important work in the TiO2 photocatalyst development is that the surface modification have been successfully introduced to pristine TiO2 via NaBH4 treatment and its concentration can be controlled by appliying different temperatures. The modified TiO2 (X300-450) has a good visible light absorption. Additionally, for the black TiO2 treated via NaBH4 reduction in 400 and 450oC, it shows low charge recombination compared to the pristine TiO2. Furthermore, in the application for dye degradation, it was found that those properties are not linear to the photocatalytic activity, as it has mainly bulk defects, which play the role of swallow traps for the electron and hole recombination, thus reducing the amount of charge migrated to the surface for photocatalytic reaction.

Liquid Chromatography of Natural Pigments and Synthetic Dyes

Liquid Chromatography of Natural Pigments and Synthetic Dyes Book
Author : Tibor Cserháti
Publisher : Elsevier
Release : 2006-12-07
ISBN : 9780080465760
Language : En, Es, Fr & De

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Book Description :

This latest volume in the series entitled Liquid Chromatography of Natural Pigments and Synthetic Dyes presents an overview of the latest developments in the field while critically evaluating this method of analysis and providing comparisons of the various liquid chromatographic separation techniques that are currently available. Natural pigments and synthetic dyes are extensively used in various fields of everyday life including food production, textile industry, paper production, agricultural practice and research and water science and technology. Besides their capacity for increasing the marketability of products, natural pigments have shown advantageous biological activity as antioxidants and anticancer agents. On the negative side, synthetic pigments have a significant impact on the environment and can cause adverse toxicological side effects. Both pigment classes exhibit considerable structural diversity. As the stability of the pigments against hydrolysis, oxidation and other environmental and technological conditions is markedly different, the exact determination of the pigment composition may help for the prediction of the shelf-life of products and the assessment of the influence of technological steps on the pigment fractions resulting in more consumer friend processing methods. Furthermore, the qualitative determination and identification of the pigments may contribute to the establishment of the provenance of the product. The unique separation capacity of liquid chromatographic (LC) techniques makes it a method of preference for the analysis of pigments in any complicated accompanying matrices. * an overview of the latest developments in the field * a critical evaluation of results from this form of analysis * a comparison of the various LC (liquid chromatographic) separation techniques * future trends in the LC analysis of pigments

Photocatalytic Degradation of Amaranth Dye

Photocatalytic Degradation of Amaranth Dye Book
Author : Jatinder Kumar,Ajay Bansal
Publisher : LAP Lambert Academic Publishing
Release : 2010-10
ISBN : 9783843366076
Language : En, Es, Fr & De

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Book Description :

The treatment of highly colored wastewater containing hazardous industrial chemicals and dyes is one of the growing needs of the present time. The conventional wastewater treatment does not always satisfactorily cleanse the wastewater containing dyes. In order to cleanse water of these extra-stable organics, so-called advance oxygen processes (AOPs) have been developed. The aim of these methods is to mineralize the pollutants to CO2, H2O and mineral acids and salts. Titanium dioxide photocatalysis belongs to the group of AOPs and has been extensively studied over the last 20 years. The use of TiO2 as slurries in wastewater treatment has some disadvantages: the separation of fine particles is slow and penetration of light is limited. These problems can be minimized by supporting TiO2 on various materials. The goals of present work were: (1) preparation of immobilized TiO2 films by various techniques and their characterization; (2) study the photocatalytic degradation of aqueous amaranth solution using the prepared TiO2 films; (3) study the combined effect of photodegradation and adsorption; (4) comparing the performance of prepared films.

UV TiO2 Photocatalytic Degradation of Commercial Dyes in Aqueous Solutions

UV TiO2 Photocatalytic Degradation of Commercial Dyes in Aqueous Solutions Book
Author : Wan Nor Adira Wan Khalit
Publisher : Unknown
Release : 2012
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download UV TiO2 Photocatalytic Degradation of Commercial Dyes in Aqueous Solutions book written by Wan Nor Adira Wan Khalit, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Photocatalytic Degradation of an Azo Dye Using Titanium Dioxide

Photocatalytic Degradation of an Azo Dye Using Titanium Dioxide Book
Author : Tharinee Aungpradit,Mahāwitthayālai Kasētsāt. Department of Chemistry
Publisher : Unknown
Release : 2000
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Photocatalytic Degradation of an Azo Dye Using Titanium Dioxide book written by Tharinee Aungpradit,Mahāwitthayālai Kasētsāt. Department of Chemistry, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Role of Polytungstometalate

Role of Polytungstometalate Book
Author : Mamta Lodha
Publisher : Unknown
Release : 2017-06-24
ISBN : 9783330322653
Language : En, Es, Fr & De

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Book Description :

Download Role of Polytungstometalate book written by Mamta Lodha, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Degradation of Dyes Using Zinc Oxide as the Photocatalyst

Degradation of Dyes Using Zinc Oxide as the Photocatalyst Book
Author : Kian Mun Lee
Publisher : Unknown
Release : 2008
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Degradation of Dyes Using Zinc Oxide as the Photocatalyst book written by Kian Mun Lee, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Photocatalysis

Photocatalysis Book
Author : Gaurav Sharma,Amit Kumar
Publisher : Materials Research Forum LLC
Release : 2021-05-20
ISBN : 164490134X
Language : En, Es, Fr & De

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Book Description :

Photocatalysis is important in fighting environmental pollution, such as pharmaceutical effluents, dyes, pesticides and endocrine disruptors. It is also used for the production of clean energy, e.g. by way of hydrogen production from watersplitting, or CO2 conversion into fuels. Further, photocatalytic N2 fixation is promising for achieving sustainable ammonia synthesis. The book discusses new materials and reaction engineering techniques, such as heterojunction formations, composites, ion exchangers, photocatalytic membranes, etc. Keywords: Photocatalysis, Pollutant Degradation and Mineralization, Pharmaceutical Effluents, Dyes, Pesticides, Endocrine Disruptors, Water Detoxification, Photocatalytic Hydrogen Production, CO2 Conversion into Fuels, N2 Fixation, Degradation of Organic Molecules, Heavy Metal Removal from Water, Photocatalytic Membranes, Carbon Nitride for Photocatalytic Applications, Carbon Nanotubes, Nanohybrids, Composite Ion Exchangers, Perovskites-based Nano Heterojunctions.

Synthesis and Characterization of Pristine and Lanthanum Modified WO3 Nanoparticles for the Photocatalytic Degradation of Organic Dyes

Synthesis and Characterization of Pristine and Lanthanum Modified WO3 Nanoparticles for the Photocatalytic Degradation of Organic Dyes Book
Author : Nthabeleng Sylvia Lehutso
Publisher : Unknown
Release : 2019
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Synthesis and Characterization of Pristine and Lanthanum Modified WO3 Nanoparticles for the Photocatalytic Degradation of Organic Dyes book written by Nthabeleng Sylvia Lehutso, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Energy Efficiency and Renewable Energy Through Nanotechnology

Energy Efficiency and Renewable Energy Through Nanotechnology Book
Author : Ling Zang
Publisher : Springer Science & Business Media
Release : 2011-09-06
ISBN : 9780857296382
Language : En, Es, Fr & De

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Book Description :

Reflecting the rapid growth of nanotechnology research and the potential impact of the growing energy crisis, Energy Efficiency and Renewable Energy Through Nanotechnology provides comprehensive coverage of cutting-edge research in the energy-related fields of nanoscience and nanotechnology, which aim to improve energy efficiency and the generation of renewable energy. Energy Efficiency and Renewable Energy Through Nanotechnology tightly correlates nanotechnology with energy issues in a general, comprehensive way that makes it not only suitable as a desk reference for research, but also as a knowledge resource for the non-expert general public. Readers will find Energy Efficiency and Renewable Energy Through Nanotechnology useful in a variety of ways, ranging from the creation of energy policy, to energy research development, and to education in nanotechnology and its application to energy-related problems. It can also be used as a primary or supplementary textbook for energy-related courses for advanced undergraduate and graduate students.

Nano Materials as Photocatalysts for Degradation of Environmental Pollutants

Nano Materials as Photocatalysts for Degradation of Environmental Pollutants Book
Author : Pardeep Singh,Anwesha Borthakur,P.K. Mishra,Dhanesh Tiwary
Publisher : Elsevier
Release : 2019-12-02
ISBN : 0128185996
Language : En, Es, Fr & De

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Book Description :

Nano-Materials as Photocatalysts for Degradation of Environmental Pollutants: Challenges and Possibilities contains both practical and theoretical aspects of environmental management using the processes of photodegradation and various heterogeneous catalysts. The book's main focus is on the degradation of harmful pollutants, such as petrochemicals, crude oils, dyes, xenobiotic pharmaceutical waste, endocrine disrupting compounds, and other common pollutants. Chapters incorporate both theoretical and practical aspects. This book is useful for undergraduate or university students, teachers and researchers, especially those working in areas of photocatalysis through heterogeneous catalysts. The primary audience for this book includes Chemical Engineers, Environmental Engineers and scientists, scholars working on the management of hazardous waste, scientists working in fields of materials science, and Civil Engineers working on wastewater treatment. Reviews recent trends in the photodegradation of organic pollutants Offers a bibliometric analysis of photocatalysis for environmental abatement Includes many degradation mechanisms of organic pollutants using various catalysts Includes examples on the degradation of organic pollutants from various sources, e.g., pharmaceuticals, dyes, pesticides, etc. Discusses the effect of nanocatalysts on soil, plants and the ecosystem

Preparation of Highly Water Dispersible TiO2 Nanoparticles for Visible Light Photocatalytic Degradation of Organic Dyes

Preparation of Highly Water Dispersible TiO2 Nanoparticles for Visible Light Photocatalytic Degradation of Organic Dyes Book
Author : Chung Yi Wu
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Preparation of Highly Water Dispersible TiO2 Nanoparticles for Visible Light Photocatalytic Degradation of Organic Dyes book written by Chung Yi Wu, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Green Photocatalytic Semiconductors

Green Photocatalytic Semiconductors Book
Author : Seema Garg
Publisher : Springer Nature
Release : 2021-10-21
ISBN : 303077371X
Language : En, Es, Fr & De

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Book Description :

Download Green Photocatalytic Semiconductors book written by Seema Garg, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.