Phenolic compounds in water: From toxicity and source to sustainable solutions – An integrated review of removal methods, advanced technologies, cost analysis, and future prospects

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112964 - 112964

Published: May 6, 2024

Language: Английский

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Synthesis Methods, Properties, and Modifications of Biochar-Based Materials for Wastewater Treatment: A Review

Resources, Journal Year: 2024, Volume and Issue: 13(1), P. 8 - 8

Published: Jan. 5, 2024

The global impact of water and soil contamination has become a serious issue that affects the world all living beings. In this sense, multiple treatment alternatives have been developed at different scales to improve quality. Among them, biochar suitable alternative for environmental remediation due its high efficiency low cost, raw material used production comes from residual biomass. A is carbonaceous with interesting physicochemical properties (e.g., surface area, porosity, functional groups), which can be prepared by synthesis methods using agricultural wastes (branches banana rachis, cocoa shells, cane bagasse, among others) as feedstock. This state-of-the-art review based on general description remediation. Biochar’s production, synthesis, uses also analyzed. addition, work shows some thus several applications, like removing heavy metals, oil, dyes, other toxic pollutants. Physical chemical modifications, precursors, dopants, promoting agents Fe N species) discussed. Finally, primary corresponding mechanism quality (via adsorption, heterogeneous photocatalysis, advanced oxidation processes) described, both laboratory medium large scales. Considering advantages, methods, promising potential mitigate problems improving quality, reducing greenhouse gas emissions, circular economy through biomass, generating value-added products uses.

Language: Английский

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Advances in MXene-based technologies for the remediation of toxic phenols: A comprehensive review

Advances in Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 332, P. 103250 - 103250

Published: July 20, 2024

Language: Английский

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Synthesis of cellulose nanofibrils modified with carbon dots-graft-polyacrylamide/ZIF-8 composite hydrogel for simultaneous adsorption and detection of tetracycline

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 470, P. 144087 - 144087

Published: June 12, 2023

Language: Английский

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Advanced Applications of Carbonaceous Materials in Sustainable Water Treatment, Energy Storage, and CO2 Capture: A Comprehensive Review

Sustainability, Journal Year: 2023, Volume and Issue: 15(11), P. 8815 - 8815

Published: May 30, 2023

The demand for energy has increased tremendously around the whole world due to rapid urbanization and booming industrialization. Energy is major key achieving an improved social life, but production utilization processes are main contributors environmental pollution greenhouse gas emissions. Mitigation of crisis reduction in (water air) difficulties leading research topics nowadays. Carbonaceous materials offer some best solutions minimize these problems easy effective way. It also advantageous that sources carbon-based economical, synthesis comfortable, applications environmentally friendly. Among carbonaceous materials, activated carbons, graphene, carbon nanotubes have shown outstanding performance mitigating pollution. These three exhibit unique adsorption properties storage, water purification, cleansing their electrical conductivity, large specific surface areas, strong mechanical strength. This paper reviews methods nanotubes, graphene significant treatment, dioxide capture improve sustainability.

Language: Английский

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Copper tungstate (CuWO4)/graphene quantum dots (GQDs) composite photocatalyst for enhanced degradation of phenol under visible light irradiation

Results in Physics, Journal Year: 2023, Volume and Issue: 45, P. 106253 - 106253

Published: Feb. 1, 2023

Photocatalysis is one of the most preferred methods for degradation organic pollutants as it can lead to complete mineralization employing sunlight an energy source. Until so far enormous number investigations have been done regarding development visible light responsive, stable, and cost effective photocatalysts. In present work, owing objectives mentioned above, attempt was made develop efficient, cheaper, active composite photocatalyst consisting moderate band gap, CuWO4 with electron conductive graphene quantum dots. A series photocatalysts prepared by varying amount while keeping GQDs fixed, their activity evaluated phenol under irradiation. The were characterized using X-ray diffraction (XRD), Scanning microscopy (SEM), Raman spectroscopy, Fourier Transform Infrared (FTIR) Photoluminescence (PL) evaluation crystallinity, functional groups, properties charge carrier separation, respectively. maximum efficiency photodegradation simulated wastewater achieved sample 0.5GCW (optimized having 0.5 wt% respect fixed GQDs), 53.41%, compared pure sample, which exhibited 19.08% efficiency. possible mechanism enhanced proposed mainly due efficient transfer electrons from results show that dots significantly contributes improvement photocatalytic performance.

Language: Английский

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Enhanced adsorptive removal of hazardous methyl violet 2B and methyl orange dyes by Algerian diatomite-loaded polysaccharide-based hydrogel beads

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 383, P. 122150 - 122150

Published: May 22, 2023

Language: Английский

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4-Chlorophenol adsorption from water solutions by activated carbon functionalized with amine groups: response surface method and artificial neural networks

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: May 15, 2023

4-Chlorophenol pollution is a significant environmental concern. In this study, powdered activated carbon modified with amine groups synthesized and investigated its efficiency in removing 4-chlorophenols from aqueous environments. Response surface methodology (RSM) central composite design (CCD) were used to investigate the effect of different parameters, including pH, contact time, adsorbent dosage, initial 4-chlorophenol concentration, on removal efficiency. The RSM-CCD approach was implemented R software analyze experiments. statistical analysis variance (ANOVA) describe roles effecting parameters response. Isotherm kinetic studies done three Langmuir, Freundlich, Temkin isotherm models four pseudo-first-order, pseudo-second-order, Elovich, intraparticle both linear non-linear forms. characterized using X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), scanning electron microscopy (SEM) analyses. results showed that had maximum adsorption capacity 316.1 mg/g exhibited high 4-chlorophenols. optimal conditions for highest an dosage 0.55 g/L, time 35 min, concentration 110 mg/L, pH 3. thermodynamic study indicated process exothermic spontaneous. also excellent reusability even after five successive cycles. These findings demonstrate potential as effective method environments contributing developing sustainable efficient water treatment technologies.

Language: Английский

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Investigating the potential of using solid waste generated from stone cutting factories for phenol removal from wastewater: A study of adsorption kinetics and isotherms

Results in Engineering, Journal Year: 2023, Volume and Issue: 20, P. 101404 - 101404

Published: Sept. 6, 2023

Remarkably toxic, phenol requires efficient elimination from water. This study investigates the utilization of solid waste generated by stone-cutting factories for extracting wastewater. The underwent thermal treatment at 105 °C 3 h characterization. Batch adsorption experiments systematically assessed parameters like concentration, adsorbent mass, contact time, temperature, and pH. Optimal removal transpired pH 7.5, reaching equilibrium within 4 h. Phenol uptake values were 8.1, 13.3, 16.2, 20.2, 28.1 mg/g initial concentrations 50, 100, 150, 200, 300 mg/L, respectively using 1 g ambient temperature. Langmuir model fit acceptably, yet Freundlich surpassed it. most suitable kinetics was pseudo-second-order. nature process endothermic. Importantly, this pioneers promising application as an material effective removal, offering a sustainable approach. Notably, no previous has been conducted on wastewater specific adsorbent, rendering work pivotal in exploring its potential. presents economical, readily available, environmentally benign process, expected to exhibit substantial capacity.

Language: Английский

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Biochar as Alternative Material for Heavy Metal Adsorption from Groundwaters: Lab-Scale (Column) Experiment Review

Materials, Journal Year: 2024, Volume and Issue: 17(4), P. 809 - 809

Published: Feb. 7, 2024

The purpose of this manuscript is to present a review laboratory experiments (including methodology and results) that use biochar, specific carbon obtained by pyrolysis process from different feedstocks, as an alternative material for heavy metal adsorption groundwater. In recent years, many studies have been conducted regarding the application innovative materials water decontamination develop more sustainable approach remediation processes. biochar groundwater has particularly attracted interest researchers because it permits reuse would be otherwise disposed of, in accordance with circular economy, reduces generation greenhouse gases if compared virgin materials. A approaches results reported current literature could useful when applying technologies at field scale, preliminary phase which suitability adsorbent evaluated lab scale often necessary. This paper therefore organised short description involved metals production composition. comprehensive analysis knowledge related obtain characteristic parameters are necessary upscaling technology also presented. An overview achieved using experimental conditions, such chemical properties dosage well concentrations their values pH, reported. At end, numerical interpretation experiment introduced.

Language: Английский

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