Modified Chitosan Forms For Cr Vi Removal
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Modified Chitosan Forms For Cr Vi Removal
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Author : Erol Pehlivan
language : en
Publisher:
Release Date : 2019
Modified Chitosan Forms For Cr Vi Removal written by Erol Pehlivan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Science categories.
The forms of utility in the wastewater treatment of chitosan-based adsorbents acquired from natural substances have attracted numerous attentions in recent years. The use of chitosan modified adsorbents for removal of the chromium has aroused great interest. When chitosan-based modified adsorbents are considered, they have got large amount of an amino (-NH2) and hydroxyl (-OH) functional groups. Such adsorbents display that they have high activity and therefore they may be extensively utilized in wastewater treatment plants to cast off chromium. In this chapter, the utility outcomes of chitosan-based substances will be explained after applying different parameters to remove Cr (VI) from the aqueous surrounding with the information obtained the use of batch adsorption systems. Application of various chitosan-based adsorbents for Cr (VI) removal application will be demonstrated in a detailed way and they will be discussed within the textual content.
Chitin And Chitosan
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Author : Mohammed Berrada
language : en
Publisher: BoD – Books on Demand
Release Date : 2021-09-29
Chitin And Chitosan written by Mohammed Berrada and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-29 with Technology & Engineering categories.
Chitin and Chitosan - Physicochemical Properties and Industrial Applications provides an overview of the extraction, modification, characterization, and application of chitin and chitosan derivatives from crustacean byproducts and their physicochemical properties. It presents and explains important studies and develops new and innovative methods of biological and physicochemical analysis in the fields of organic and mineral environmental pollution, corrosion inhibitors, drug delivery systems, superabsorbent materials, nanotechnology, textiles, biotechnology, and biomedical sciences.
Chitosan Based Adsorbents For Wastewater Treatment
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Author : Abu Nasar
language : en
Publisher: Materials Research Forum LLC
Release Date : 2018-07-01
Chitosan Based Adsorbents For Wastewater Treatment written by Abu Nasar and has been published by Materials Research Forum LLC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-01 with Technology & Engineering categories.
Chitosan is a natural amino polymer. It is eco-friendly, biocompatible, biodegradable, cost-effective, easily available and has high potential to be utilized as an adsorbent. Because of their excellent chelating power, chitosan-based adsorbents have a very high ability to tightly bind the pollutants present in contaminated water and wastewater. Different heavy metals and toxic dyes can be effectively removed. Chapter 1 deals with the chemical, physical, physicochemical and mechanical properties of chitosan and chitosan-based materials. Adsorption data on the removal of heavy metals and different dyes have been compiled. Chapter 2 covers the utilization of chitosan and its derivatives for the adsorptive removal of mercury from water and wastewater. Chapter 3 describes novel chitosan-based nanocomposites for dye removal applications. Chapter 4 discusses the effect of different chitosan modifications on its structure and specific surface area. Chapter 5 covers the applications of chitin and chitosan-based adsorbents for the removal of natural dyes from wastewater. Chapter 6 highlights the adsorptive treatment of textile effluents using chemically modified chitosan as adsorbents. Chapter 7 reviews the applications of chitosan-based adsorbents for the removal of arsenicals. Chapter 8 centers on the adsorption capacity enhancement of chitosan by chemical modification. Chapter 9 focuses on the smart use of surfactants for the modification of chitosan and some other biomaterials and their subsequent use for the removal of contaminants from aqueous solutions. Chapter 10 reviews the use of chitosan-based nanocomposites as adsorbents for the removal of dyes from wastewater. Chapter 11 describes the preparation of uniformly distributed platinum nanoparticles decorated with graphene oxide-chitosan by employing a microwave-assisted method. The nanocomposite can be used for the removal of dye from aqueous solution.
Chitosan Based Adsorbents For Wastewater Treatment
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Author : Abu Nasar
language : en
Publisher:
Release Date : 2018-07
Chitosan Based Adsorbents For Wastewater Treatment written by Abu Nasar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07 with Chitosan categories.
Chitosan is a natural amino polymer. It is eco-friendly, biocompatible, biodegradable, cost-effective, easily available and has high potential to be utilized as an adsorbent. Because of their excellent chelating power, chitosan-based adsorbents have a very high ability to tightly bind the pollutants present in contaminated water and wastewater. Different heavy metals and toxic dyes can be effectively removed. Chapter 1 deals with the chemical, physical, physicochemical and mechanical properties of chitosan and chitosan-based materials. Adsorption data on the removal of heavy metals and different dyes have been compiled. Chapter 2 covers the utilization of chitosan and its derivatives for the adsorptive removal of mercury from water and wastewater. Chapter 3 describes novel chitosan-based nanocomposites for dye removal applications. Chapter 4 discusses the effect of different chitosan modifications on its structure and specific surface area. Chapter 5 covers the applications of chitin and chitosan-based adsorbents for the removal of natural dyes from wastewater. Chapter 6 highlights the adsorptive treatment of textile effluents using chemically modified chitosan as adsorbents. Chapter 7 reviews the applications of chitosan-based adsorbents for the removal of arsenicals. Chapter 8 centers on the adsorption capacity enhancement of chitosan by chemical modification. Chapter 9 focuses on the smart use of surfactants for the modification of chitosan and some other biomaterials and their subsequent use for the removal of contaminants from aqueous solutions. Chapter 10 reviews the use of chitosan-based nanocomposites as adsorbents for the removal of dyes from wastewater. Chapter 11 describes the preparation of uniformly distributed platinum nanoparticles decorated with graphene oxide-chitosan by employing a microwave-assisted method. The nanocomposite can be used for the removal of dye from aqueous solution.
Enhanced Chitosan Material For Water Treatment
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Author : Ephraim Igberase
language : en
Publisher: Springer Nature
Release Date : 2021-04-29
Enhanced Chitosan Material For Water Treatment written by Ephraim Igberase and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-29 with Technology & Engineering categories.
This book reviews some of the latest developments in the field of water treatment using multi-functional chitosan-based materials. It covers the production of chitosan beads and membranes from chitosan powder, as well as modification techniques for enhancing the material for commercial and industrial purposes. The book summarizes the results of experimental adsorption/desorption studies for elucidating the underlying reaction mechanism of heavy-metal removal from wastewater, presenting an advanced overview of an array of characterization techniques such as Fourier-transform infrared spectroscopy, thermogravimetric analysis, x-ray diffraction, and scanning electron microscopy. Additionally, it features a look at the development and application of specialized engineering software and image analysis for modelling the kinetics of adsorption. This book is ideal for scientists and engineers working in the broader field of environmental materials science. It is all well suited for chemists, as well as industrial and civil engineers, interested in wastewater treatment and mitigation of water pollution
Chitosan Crosslinking Into Magnetic Multi Walled Carbon Nanotubes Beads For Efficient Cr Vi Removal
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Author : Mian Muhammad Aslam
language : en
Publisher:
Release Date : 2017
Chitosan Crosslinking Into Magnetic Multi Walled Carbon Nanotubes Beads For Efficient Cr Vi Removal written by Mian Muhammad Aslam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Biopolymers (chitin, chitosan) like potential adsorbents are often challenged by weak stability, poor dispersibility, low adsorption, and difficulty of recovery. This work demonstrates the synthesis of an adsorbent in the form of CS/MWCNTs/Fe beads by combining chitosan and sodium alginate with magnetic iron oxide-doped MWCNTs. The prepared composite beads were then used for the adsorption of Cr(VI) from water samples. The physicochemical properties of CS/MWCNTs/Fe beads were characterized in detail by using FTIR, XRD, FE-SEM, EDS, and TGA. The outer to inner core structural characterization of composite beads found that the magnetic iron oxide-doped MWCNTs coated with chitosan were uniformly dispersed inside the alginate beads, making their shape as a spherical shell. During the adsorption experiments, CS/MWCNTs/Fe beads showed robust performance in Cr(VI) removal and could separate easily by using external magnet from the aqueous sample having the initial concentration, solution pH and temperature as critical factors to control their removal performance. We demonstrated that these beads can achieve a high Cr(VI) removal performance with an optimized chitosan and alginate contents. The pseudo-second-order model showed the best fit with experimental data, suggesting the rate-limiting factor of the adsorption. Langmuir isotherm with a maximum adsorption capacity of 11.74 mg/g characterized the Cr(VI) removal behavior. Moreover, the composite beads showed up to 76% of Cr(VI) removal efficiency after five cycles of adsorption. The synergistic impact in this process suggests the promising potential of CS/MWCNTs/Fe beads for the elimination of contaminants from the water bodies.
Sorption Processes And Pollution
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Author : Grégorio Crini
language : en
Publisher: Presses Univ. Franche-Comté
Release Date : 2010
Sorption Processes And Pollution written by Grégorio Crini and has been published by Presses Univ. Franche-Comté this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Absorption and adsorption categories.
Biological Activities And Application Of Marine Polysaccharides
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Author : Emad Shalaby
language : en
Publisher: BoD – Books on Demand
Release Date : 2017-01-11
Biological Activities And Application Of Marine Polysaccharides written by Emad Shalaby and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-11 with Science categories.
Marine organisms have been under research for the last decades as a source for different active compounds with various biological activities and application in agriculture, pharmacy, medicine, environment, and industries. Marine polysaccharides from these active compounds are used as antibacterial, antiviral, antioxidant, anti-inflammation, bioremediations, etc. During the last three decades, several important factors that control the production of phytoplankton polysaccharides have been identified such as chemical concentrations, temperature, light, etc. The current book includes 14 chapters contributed by experts around the world; the chapters are categorized into three sections: Marine Polysaccharides and Agriculture, Marine Polysaccharides and Biological Activities, and Marine Polysaccharides and Industries.
Chitin Chitosan
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Author : Rajendra Dongre
language : en
Publisher: BoD – Books on Demand
Release Date : 2018-07-18
Chitin Chitosan written by Rajendra Dongre and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-18 with Science categories.
Chitin is the second most abundant biopolymer after cellulose and is a resourceful copious and cheap biomaterial discovered in 1859 owing to significant industrial and technological utility. Raw chitin-chitosan resembles keratin in its biological functions. Chitin chemistry vastly developed via innate unparalleled biological features and exceptional physicochemical characters. Chitosan endures assorted chemical/physical modifications easily at free proactive functionalities, yet intact bulk properties are achieved through processing, viz., film, membrane, composite, hybrid, nanofibre, nanoparticle, hydrogel and scaffolds. Rapidly lessen bioresources signify chitosan as an option due to renewable eco-friendliness and drive embryonic myriad applications in S
Adsorption Of Chromium From An Aqueous Solution Onto Chitosan Beads Modified With Sodium Dodecyl Sulfate Sds
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Author : Naoki Kano
language : en
Publisher:
Release Date : 2020
Adsorption Of Chromium From An Aqueous Solution Onto Chitosan Beads Modified With Sodium Dodecyl Sulfate Sds written by Naoki Kano and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Electronic books categories.
The goal of this research is to make chitosan beads that have been treated with sodium dodecyl sulfate (SDS) to remove chromium (Cr) from an aqueous solution effectively. The successful synthesis of the SDS-chitosan was proven through characterization, which were carried out using by scanning electron microscopy,Äìenergy dispersive X,Äìray spectroscopy (SEM-EDS), Fourier transform-infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The adsorption of Cr on the SDS material was investigated by varying experimental conditions such as pH, contact time and adsorbent dosage. The maximum adsorption capacity of SDS-chitosan for Cr(III) was estimated to be 3.42¬†mg¬∑g,àí1 and 3.23¬†mg¬∑g,àí1 for Cr(VI). Based on the results of adsorption kinetics and isothermal models, the adsorption process conform to the pseudo-second-order and Langmuir isotherm models. This indicates that the adsorption of Cr on SDS-chitosan is mainly dominated by chemical adsorption and monolayer reaction. In addition, according to thermodynamic analyses, the adsorption of Cr is an endothermic reaction. These results show that the new adsorbent has obvious application prospect for removing Cr.