الفهرس 
Aim of the WorkOnly 14 pages are availabe for public view
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Abstract
Industrial wastewater contains a significant concentration of suspended particles, dissolved organic compounds, and color. The release of these harmful substances into the environment is a warning sign of degradation in the ecosystem. Accordingly, more rigorous environmental rules have been enacted, forcing textile sector operators to upgrade current dye effluent treatment methods that comply with standards. The removal of these hazardous compounds from wastewater before it is discharged into aquatic ecosystems has become critical, and the development of effective methods for water pollution remediation has been a major focus of environmental research in this regard. Advanced oxidation, membrane filtration, ion exchange, coagulation/ flocculation, or adsorption are all major methods with various degrees of effectiveness. The most widely used water treatment technology is adsorption because of its low cost, and simplicity of usage. Adsorption procedure utilizing numerous sorts of adsorbents is still the greatest system in the expulsion of contaminants from wastewaters because of its productivity, high adsorption limit and low operational expense strategy. Nano-adsorbents are nanosized particles made of organic or inorganic materials that adsorb substances with a high affinity. Every adsorption process requires adsorbents with a large surface area, large pore volume, and appropriate functionalities. The batch Approach and dynamic continuous flow are two types of adsorption investigations. Many porous materials have been developed in recent years, including activated carbon, zeolites, pillared clays, polymers, mesoporous oxides, and metal-organic frameworks, with varying degrees of efficiency in removing hazardous pollutants from water. Mesoporous silica nanoparticles (MSNs) are porous solid materials with siloxane structures (inorganic) that are gaining popularity as potential contenders for a variety of applications. Mesoporous silica has attracted remarkable attention due to its unique properties, including tunable pore size, regular mesoporous structure, large surface area, large pore volume, and impressive biocompatibility in vitro and in vivo. The general preference of these mesoporous materials is possibly due to the introduction of a wide variety of functional groups onto the surface. The open-pore structure of ordered mesoporous materials allows better accessibility and transfer of molecular species. The surface functionalization of mesoporous silica will change the physical and chemical properties of these materials significantly. Graphene oxide (GO) is a highly oxidative type of graphene that has a layered structure and large surface area. GO has been used as an effective adsorbent in aqueous media. Iron oxide nanoparticles, in particular hematite (α-Fe2O3), have a distinctive role in nanoscience and nanotechnology. They are highly stable, chemically active, and biocompatible under environmental conditions. The surface chemical modification of cellulose nanomaterials can enhance the adsorption capacity toward different types of pollutants from aqueous solutions and also direct its selectivity, probably due to the higher number of active binding sites after modification, better ion-exchange properties, and formation of new functional groups that favor metal uptake backbone. Cellulose from rice husk may be more readily available and less expensive to obtain than cellulose from other types of biomasses. The high crystallinity of rice husk cellulose makes it more stable and resistant to degradation. Reactive Black-5 (RB5) is an economical azo dye widely utilized in different industries including the production of papers, textiles, colors, leathers, carpets, cosmetics, plastics, ink, shoes polish, electroplating, and mineral processing. RB5 can not only affect the ecosystem but also cause serious problems for the health of human beings and other living organisms. Continuous and long-time exposure to RB5 could cause skin rashes, bladder cancer, chromosomal aberration, respiratory and kidney failure, blindness, shock, cardiovascular collapse, and asthma. Also, the presence of trace amounts of RB5 gives the water an unsightly appearance from aesthetic views, in this respect, the removal of RB5 is of great importance.