Silver Nanoparticles for Waste Water Management

Molecules, Journal Year: 2023, Volume and Issue: 28(8), P. 3520 - 3520

Published: April 17, 2023

Rapidly increasing industrialisation has human needs, but the consequences have added to environmental harm. The pollution caused by several industries, including dye generates a large volume of wastewater containing dyes and hazardous chemicals that drains industrial effluents. growing demand for readily available water, as well problem polluted organic waste in reservoirs streams, is critical challenge proper sustainable development. Remediation resulted need an appropriate alternative clear up implications. Nanotechnology efficient effective path improve treatment/remediation. surface properties chemical activity nanoparticles give them better chance remove or degrade material from treatment. AgNPs (silver nanoparticles) are nanoparticle treatment effluent been explored many studies. antimicrobial against pathogens well-recognised health agriculture sectors. This review article summarises applications nanosilver-based particles removal/degradation process, water management strategies, field agriculture.

Language: Английский

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Anionic azo dyes and their removal from textile wastewater through adsorption by various adsorbents: a critical review

Frontiers in Environmental Engineering, Journal Year: 2024, Volume and Issue: 3

Published: Jan. 31, 2024

The review aimed to identify differences and similarities in the adsorption process of five azo dyes [congo red (CR), reactive black 5 (RB5), methyl orange (MO), II (OII), (MR)] on natural materials, biosorbents, industrial agricultural waste, or biomass, which are alternatives costly activated carbon locally available. were characterized compared based their molecular structure weight, water solubility, acid dissociation constant, n-octanol-water partition coefficient, maximum absorbance. RB5 CR diazo dyes, whereas MO, OII, MR mono-azo dyes. anionic is an dye, direct dye. CR, RB5, MR, OII molecules contain one more sulfonate functional group(s), but does not. We performed a literature following parameters: initial dye concentration, adsorbent dosage, pH, temperature, isotherm, kinetic models, thermodynamic parameters, synergetic competitive interactions. tended adsorb best acidic medium at higher temperatures. concentration dosage studies indicated importance using appropriate amount for effective removal. follow Langmuir isotherm pseudo-second-order model. Most processes endothermic spontaneous, leading increase randomness solid-liquid interface. These results indicate between Relevant mechanisms assumed be electrostatic forces, hydrogen bonding, π–π interactions, among others. Nevertheless, focus lies development characterization not study influences from matrix “industrial wastewater”. Therefore, research needed develop units application textile industries.

Language: Английский

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A comprehensive investigation of green solutions for sustainable wastewater remediation: A review

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 400, P. 124532 - 124532

Published: March 22, 2024

Language: Английский

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Biogenic adsorbents for removal of drugs and dyes: A comprehensive review on properties, modification and applications

Chemosphere, Journal Year: 2023, Volume and Issue: 338, P. 139477 - 139477

Published: July 11, 2023

This comprehensive review explores the potential and versatility of biogenic materials as sustainable environmentally benign alternatives to conventional adsorbents for removal drugs dyes. Biogenic derived from plants, animals, microorganisms, algae biopolymers have bioactive compounds that interact with functional groups pollutants, resulting in their binding sorbent. These can be modified mechanically, thermally chemically enhance adsorption properties. hybrid composites, which integrate characteristics more than one material, also been fabricated. Additionally, microorganisms are analyzed ability uptake pollutants. Various influential factors contribute process discussed. The challenge, limitations future prospects research reviewed bridging gap between large scale application laboratory scale. review, involves a combination various adsorbents, going beyond existing literature where typically only specific reported. covers isotherms, kinetics, desorption studies providing an improved framework effective use removing pharmaceuticals dyes wastewater.

Language: Английский

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Synthesis of carboxymethyl starch co (polyacrylamide/ polyacrylic acid) hydrogel for removing methylene blue dye from aqueous solution

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 269, P. 132053 - 132053

Published: May 3, 2024

Language: Английский

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Bimetallic metal–organic frameworks (BMOFs) for dye removal: a review

RSC Advances, Journal Year: 2024, Volume and Issue: 14(43), P. 31777 - 31796

Published: Jan. 1, 2024

Safe drinking water and a clean living environment are essential for good health. However, the extensive growing use of hazardous chemicals, particularly carcinogenic dyes like methylene blue, methyl orange, rhodamine B, malachite green, in both domestic industrial settings, has led to scarcity potable environmental challenges. This trend poses serious threat human society, sustainable global development, marine ecosystems. Consequently, researchers exploring more advanced methods beyond traditional wastewater treatment address removal or degradation these toxic dyes. Conventional approaches often inadequate effectively removing from wastewater. In this study, we investigated bimetallic metal-organic frameworks (BMOFs) as solution limitations. BMOFs demonstrated outstanding dye capabilities due their multifunctionality, stability, large surface area, adjustable pore size, recyclability. review provides comprehensive overview research on using BMOFs, including synthesis methods, types dyes, processes involved removal, such adsorption. Finally, discusses future potential emerging opportunities treatment.

Language: Английский

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Agricultural Byproducts Used as Low-Cost Adsorbents for Removal of Potentially Toxic Elements from Wastewater: A Comprehensive Review

Sustainability, Journal Year: 2023, Volume and Issue: 15(7), P. 5999 - 5999

Published: March 30, 2023

Potentially toxic elements (PTEs) are ubiquitous chemical compounds in the environment due to contamination of air, water, or soil. They primarily sourced from fossil fuel combustion, mining and smelting, electroplating, dyes pigments, agricultural treatments, plastic metallic industries. These contaminants can produce various adverse effects when they enter human body also affect crops aquatic ecosystems. To address these issues, researchers developing techniques, including ion exchange, membrane filtration, photocatalysis, electrochemical methods, bioadsorption, combinations processes, reduce levels contaminants, especially wastewater. Among bioadsorption has gained much attention its high efficiency, low cost, abundance adsorbent materials. Agricultural byproducts used as biosorbents include rice husk bran, citrus peel, banana coconut husk, sugarcane bagasse, soybean hulls, walnut almond shells, fiber, barley straws, many others. Biosorption capacity be described using adsorption kinetic models such Elovich, Ritchie’s, pseudo-second-order models, well different isotherm Freundlich, Langmuir, Temkin isotherm, BET models. Both conventional processes influenced by parameters pH, agitation speed, contact time, particle size, concentration material, initial contaminant, type modifying agent used. This review paper aims examine low-cost adsorbents their removal efficiency for PTEs present wastewater, potential decontamination methods.

Language: Английский

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Pre and post-adsorption properties of modified banana fibre as sustainable bio-material for environmental and futuristic industrial applications

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 209, P. 118003 - 118003

Published: Jan. 13, 2024

Language: Английский

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Optimization of Process Parameters Using Response Surface Methodology for Essential Oil Extraction from Canarium odontophyllum Kernels by Subcritical Water Treatment

Food Analytical Methods, Journal Year: 2024, Volume and Issue: 17(6), P. 910 - 929

Published: April 19, 2024

Language: Английский

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Modeling and Optimizing the Crystal Violet Dye Adsorption on Kaolinite Mixed with Cellulose Waste Red Bean Peels: Insights into the Kinetic, Isothermal, Thermodynamic, and Mechanistic Study

Materials, Journal Year: 2023, Volume and Issue: 16(11), P. 4082 - 4082

Published: May 30, 2023

In this study, a new eco-friendly kaolinite-cellulose (Kaol/Cel) composite was prepared from waste red bean peels (Phaseolus vulgaris) as source of cellulose to serve promising and effective adsorbent for the removal crystal violet (CV) dye aqueous solutions. Its characteristics were investigated through use X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, energy-dispersive zero-point charge (pHpzc). The Box-Behnken design used improve CV adsorption on by testing its primary affecting factors: loading Cel into matrix Kaol (A: 0-50%), dosage (B: 0.02-0.05 g), pH (C: 4-10), temperature (D: 30-60 °C), duration (E: 5-60 min). significant interactions with greatest elimination efficiency (99.86%) are follows: BC (adsorbent dose vs. pH) BD temperature) at optimum parameters 25%, B: 0.05 g, C: 10, D: 45 °C, E: 17.5 min) which CV's best capacity (294.12 mg/g) recorded. Freundlich pseudo-second-order kinetic models isotherm fitting our results. Furthermore, study mechanisms responsible eliminating utilizing Kaol/Cel-25. It detected multiple types associations, including electrostatic, n-π, dipole-dipole, hydrogen bonding interactions, Yoshida bonding. These findings suggest that Kaol/Cel could be starting material developing highly efficient can remove cationic dyes environments.

Language: Английский

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