Search results for ""author shahid ul islam""

Dyes, pigments and metals are extensively used in food, paper, carpet, rubber, plastics, cosmetics, and textile industries, in order to color and finish products. As a result, they generate a considerable amount of coloured wastewater rich in organic, inorganic, and mineral substances which are continuously polluting the water bodies and affecting human and aquatic life. Besides these industries, urban and agricultural activities also generate effluents high in biochemical oxygen demand (BOD) and chemical oxygen demand (COD). In recent years, considerable research work has been done in this area and is underway to eliminate heavy metals particularly mercury (Hg), chromium (Cr), lead (Pb), selenium and cadmium (Cd) and synthetic dyes from polluted waters which have high toxicity and carcinogenicity. Currently a number of methods are in operation to decontaminate the polluted waters. Among several purification technologies, use of nanoparticles/composites have gained much attention as efficient purification technology due to its many advantages such as simple synthesis, special chemical and physical properties, unique photocatalytic activity and beneficial antimicrobial properties and high efficiency. The book Environmental Nanotechnology for Water Purification comprehensively covers and provides new insights on all nanoparticles, composites and advanced methods employed in water purification.

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The book deals with novel applications of plant derived natural agents and their derivatives in the food, textile dyeing, medicinal, and environmental areas. Plant based natural products and their derivatives have strong influence on our everyday lives. They are needed for many everyday applications ranging from food, medicine, agriculture, textiles, and healthcare. This new book presents significant research advances about the use of plant-based natural products, mainly dyes and pigments, bioactive compounds and other plant extracts in the textile coloration, food, medicine, bioremediation and environmental applications. The topics of the ten informative chapters in Plant-Based Natural Products include the following: potential resurgence of natural dyes in applied fields; natural colorants from indigoid rich plants; phytochemical and pharmacological aspects of Butea monosperma plant; irradiation as novel pretreatment methods to improve wash fastness properties of plant derived natural dyes; dyeing studies with colorants extracted from the Lawsonia inermis plant; effect of drumstick leaf powder incorporation on quality of khakhra; physico-chemical properties of pineapple pomace powder and its incorporation in buffalo meat products; synthesis of curcumin complexes for medicinal and other industrial uses and phyto-remediation of toxic arsenic from wastewaters.

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This comprehensive book deals with the use of novel materials such as plant-derived agents and advanced nanocomposites for the removal of heavy metals, nitrates, and synthetic dyes. Water is an essential component for living organisms on planet earth and its pollution is one of the critical global environmental issues today. The influx of significant quantities of organic and inorganic waste, sediments, surfactants, synthetic dyes, sewage, and heavy metals into all types of water bodies has been increasing substantially over the past century due to rapid industrialization, population growth, agricultural activities, and other geological and environmental changes. These pollutants are very dangerous and are posing serious threat to us all. Advanced Materials for Wastewater Treatment brings together innovative methodologies and research strategies to remove toxic effluents from wastewaters. With contributions from leading scientists from all around the world, the book provides a comprehensive coverage of the current literature, up-to-date overviews of all aspects of toxic chemical remediation including the role of nanomaterials. Together they showcase in a very lucid manner an array of technologies that complement the traditional as well as advanced treatment practices of textile effluents. In particular, the book provides: Up-to-date overviews of all aspects of toxic chemical remediation The role of plants and abundantly available agro-wastes in the remediation of wastewater The removal of nitrates from wastewater using nanocomposites

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This groundbreaking book covers the recent advances in sustainable technologies and developments, and describes how green chemistry and engineering practices are being applied and integrated in various industrial sectors. Over the past decade, the population explosion, rise in global warming, depletion of fossil fuel resources and environmental pollution have been the major driving force for promoting and implementing the principles of green chemistry and sustainable engineering in all sectors ranging from chemical to environmental sciences. It plays a growing role in the chemical processing industries. Green chemistry and engineering are relatively new areas focused on minimizing generations of pollution by utilizing alternative feedstocks, developing, selecting, and using less environmentally harmful solvents, finding new synthesis pathways, improving selectivity in reactions, generating less waste, avoiding the use of highly toxic compounds, and much more. In an effort to advance the discussion of green chemistry and engineering, this book contains 19 chapters describing greener approaches to the design and development of processes and products. The contributors describe the production of third generation biofuels, sustainable and economic production of hydrogen by water splitting using solar energy, efficient energy harvesting, mechanisms involved in the conversion of biomass, green nanocomposites, bio-based polymers, ionic liquids as green solvents, sustainable nitrogen fixation, bioremediation, and much more. The book aims at motivating chemists and engineers, as well as postgraduate and PhD students and postdocs to pay attention to an acute need for the implementation of green chemistry principles in the field of chemical engineering, biomedical engineering, agriculture, environmental engineering, chemical processing and material sciences.

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In view of their promising biological and pharmaceutical activities, natural product inspired and heterocyclic compounds have recently gained a reputation in the field of medicinal chemistry. Over the past decades, intensive research efforts have been ongoing to understand the synthesis, biochemistry and engineering involved in their preparation and action mechanisms. Several novel natural product derivatives, heterocyclic and other synthetic compounds, have been reported to have shown interesting biological activities including anticancer, antimicrobial, anti-inflammatory, anti-glycemic, anti-allergy and antiviral etc. Chemistry of Biologically Potent Natural Products and Synthetic Compounds provides up-to-date information on new developments and most recent medicinal applications of the natural products and derivatives, as well as the chemistry and synthesis of heterocyclic and other related compounds.

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This book on advanced functional textiles and polymers will offer a comprehensive view of cutting-edge research in newly discovered areas such as flame retardant textiles, antimicrobial textiles, insect repellent textiles, aroma textiles, medical-textiles, smart textiles, and nano-textiles etc. The second part the book provides innovative fabrication strategies, unique methodologies and overview of latest novel agents employed in the research and development of functional polymers.

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A groundbreaking book on the recent advances in chemical finishing, innovative fabrication strategies frequently adopted for the mechanical finishing of textiles, as well as the environmental issues in textile sectors Advanced materials are undoubtedly becoming very popular as substitutes for traditional materials in the textile engineering field. Advanced textile engineering materials are giving way to innovative textile materials with novel functions and are widely perceived as offering huge potential in a wide range of applications such as healthcare, defense, personal protective equipment, textile antennas, garments for motion capture, and sensors, etc. Advanced Engineering Textile Materials contains 13 chapters written by high profile contributors with many years of experience in textile technology, and cover fundamental and advanced approaches associated with the design and development of textile implants, conductive textiles, 3D textiles, smart-stimuli textiles, antiballistic textiles and fabric structures designed for a medical application intrabody/extra-body, implantable/non-implantable) and various modification and processing techniques.

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Nanotechnology has attracted attention of textile and polymer scientists and has been playing extraordinary role over the past few decades in the functional finishing of different textile materials. Nanoparticles due to their diverse functions have not only imparted flame retardant, UV-blocking, water repellent, self-cleaning, and antimicrobial properties to the textiles, but also have greater affinity for fabrics leading to an increase in durability of the functions. This book emphasizes recent approaches and strategies that are currently at operation to functionalize both natural and synthetic textile materials using diverse nanoparticles and their composites with polymers. The book concludes by paying attention towards removal of toxic chemicals using state-of-the-art nano-adsorbents. Main Topics 1. Textile dyeing using metallic nanoparticles2. Metal oxide nanoparticles for multifunctional finishing 3. New approaches to produce UV protective textiles4. Polymeric nanocomposites for antimicrobial finishing 5. Self-cleaning of textiles using advanced nanoparticles6. Silver nanoparticles in dyeing and finishing applications7. Zinc Oxide – prospects in textile industry8. Titanium dioxide: Next generation photo-catalysts9. Textile effluent using chitosan nanocomposites 10. Recent advances in remediation of textile effluents using nano-catalysts

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GREEN CHEMISTRY for Sustainable Water Purification Green Chemistry for Sustainable Water Purification provides systematic coverage of the most recent research and development in clean water treatment technologies based on green materials and nanocomposites. Providing safe drinking water is one of the top priorities for scientists and industrialists working on projects, and one particular problem is the contamination of groundwater with toxic organic and inorganic compounds released by various industries. The presence of contaminants or industrial effluents in drinking water systems has increasingly become a major environmental challenge. To address the problem, several methods, including ion exchange, membrane filtration, advanced oxidation, biological degradation, photocatalytic degradation, electro-coagulation, and adsorption, are in operation for removing or minimizing these wastes. The purification process of wastewater using conventional methods, however, has proved to be markedly ineffective, very difficult, and highly expensive. On the other hand, for the remediation of water resources, a concept like green chemistry, based on the application of biological agents including polymers, bacteria, and fungi, has received great scientific attention as it helps to avoid the toxic by-products of conventional techniques and enhances eco-friendly wastewater treatment approaches. This book discusses the different treatment technologies with a special focus on the green adsorption approach, using biological and hybrid biochemical treatment technologies to prevent water contamination and maintain the ecosystem. It discusses the analysis of organic and inorganic pollutants from industrial wastewater. It also focuses on the removal and recovery of organic and inorganic contaminants from the environment and several case studies describing the removal and recovery of environmental pollutants using green technology are given. The recycling of low-cost along with green adsorbent technology is explained in detail. Finally, the book highlights treatment technologies with effective pollutant removal capacities that are used in modern water treatment units. Audience The book will serve as an important resource for materials scientists, chemists, chemical engineers, biotechnologists, textile engineers and environmental scientists. It will also be valuable to industrial organizations, consulting engineering companies, etc. for the selection and implementation of the most sustainable wastewater treatment technologies.

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This book is organized into 12 important chapters that focus on the progress made by metal-based drugs as anticancer, antibacterial, antiviral, anti-inflammatory, and anti-neurodegenerative agents, as well as highlights the application areas of newly discovered metallodrugs. It can prove beneficial for researchers, investigators and scientists whose work involves inorganic and coordination chemistry, medical science, pharmacy, biotechnology and biomedical engineering.

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