Methylene blue adsorption from aqueous solution using activated carbon of spathodea campanulata

Results in Engineering, Journal Year: 2024, Volume and Issue: 21, P. 101910 - 101910

Published: Feb. 10, 2024

This study aimed to determine the effectiveness of Spathodea Campanulata derived activated carbon in removing methylene blue (MB) from wastewater. The was prepared through chemical impregnation with H3PO4 and thermal activation at 500 °C for 2 h. adsorption experiments were optimized using 24 full factorial designs, considering pH, contact time, initial MB concentration, adsorbent dosage as parameters. characterization revealed favorable properties, including multiple surface functional groups, a maximum specific area 1054 m2/g, highly porous morphology. conditions achieved removal efficiency 99.95%, pH 9, time 120 min, dye concentration 90 mg/L, an 0.2 g/100 mL being most effective Freundlich isotherm model provided best fit experimental data, indicating heterogeneous multilayer surface. kinetics indicated that chemisorption primary mechanism. In conclusion, based could serve cost-effective aqueous solutions

Language: Английский

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A Sustainable Banana Peel Activated Carbon for Removing Pharmaceutical Pollutants from Different Waters: Production, Characterization, and Application

Materials, Journal Year: 2024, Volume and Issue: 17(5), P. 1032 - 1032

Published: Feb. 23, 2024

Due to the growing concerns about pharmaceutical contamination and its devastating impact on economy health of humans environment, developing efficient approaches for removing such contaminants has become essential. Adsorption is a cost-effective technique pollutants. Thus, in this work, banana peels as agro-industrial waste were utilized synthesizing activated carbon pharmaceuticals, namely amoxicillin carbamazepine from different water matrices. The chemically by phosphoric acid (H3PO4) was carbonized at temperatures 350 °C, 450 °C 550 °C. material characterized several techniques scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared (FTIR), Boehm titration, point zero charge (pHPZC), BET surface area (SBET), proximate ultimate analyses, powder diffraction (XRD), thermos-gravimetric analysis (TGA). SEM peel (BPAC) depicted semi-regular heterogeneous morphology, an abundance pores diverse forms sizes. titration revealed increase amounts acidic groups 0.711 mmol/g due activation H3PO4. FTIR recorded peaks suggesting significant modifications spectroscopic characteristics BPAC successful adsorption pollutant molecules. pHpzc calculated be 5.005. SBET dramatically increased 911.59 m2/g after activation. optimum conditions 25 materials dosage 1.2 g/L, saturation time 120 min, pollutants mixture mg/L, pH 5. Langmuir exhibits slightly better fit than Freundlich low value residual sum squares (SSE) data fitted pseudo-second-order kinetic. Furthermore, efficacy eliminating pharmaceuticals Milli Q water, lake wastewater successfully investigated over seven cycles. results present work highlighted potential usage organic micropollutants while exhibiting sustainable management waste.

Language: Английский

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A critical review on biochar for the removal of toxic pollutants from water environment

Chemosphere, Journal Year: 2024, Volume and Issue: 360, P. 142382 - 142382

Published: May 18, 2024

Language: Английский

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Newly developed polymer nanocomposite of chitosan-citrate/ZrO2 nanoparticles for safranin O dye adsorption: Physiochemical properties and response surface methodology

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 324, P. 129699 - 129699

Published: July 10, 2024

Language: Английский

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Synthesis of a novel green biopolymer-based composites beads for removal of methylene blue from aquatic medium: isotherm, thermodynamic and kinetic investigation

Polymer Bulletin, Journal Year: 2024, Volume and Issue: 81(7), P. 6603 - 6640

Published: Feb. 15, 2024

Abstract The increase in the world population and decrease clean water resources people's interest purification technologies. Many industries, such as textile industry, leather cosmetics food color their products with substances dyes pigments. In this study, a cheap, useful, innovative, environmentally friendly, sustainable adsorbent was developed for removal of Methylene Blue (MB), one that is harmful to environment. fruit tree cultivation, addition product, very high amounts by-products/waste (branches, bark, leaves, seeds, shells, etc.) are produced. direction, walnut olive wastes were immobilized chitosan, made magnetic (m-WCH m-OCH), adsorption MB on adsorbents examined batch system. Characterization synthesized biocomposite performed by FT-IR, SEM, EDX XRD analyzes. It has been thoroughly described how pH solution dye compares PZC surface. values m-WCH m-OCH 5.2 5.5 respectively. biocomposites depends environment (3–8), amount (2–10 gL −1 ), contact time (5–360 min), temperature (25–55 °C) initial concentration (10–250 ppm) function. obtained data evaluated kinetic isotherm models. Using equilibrium from studies using adsorbents, suitability Langmuir, Freundlich, Stachard, Dubinin–Radushkevich Temkin models examined. empirical showed agreement Langmuir model. maximum capacity estimated be 85.47 mg g 53.48 , result higher selectivity m-OCH. Among applied, pseudo-second-order model identified highest regression coefficients. light these results, it determined there new promising natural origin, capacity, lower cost, alternatives commercially used aqueous media. Graphical abstract

Language: Английский

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Highly porous activated carbon derived from the papaya plant (stems and leaves) for superior adsorption of alizarin red s and methylene blue dyes from wastewater

RSC Advances, Journal Year: 2025, Volume and Issue: 15(1), P. 674 - 687

Published: Jan. 1, 2025

In this study, stems and leaves of the papaya plant were employed to prepare a high-quality porous adsorbent via carbonization chemical activation using phosphoric acid.

Language: Английский

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Efficient removal of heavy metals using 1,3,5-benzenetricarboxylic acid-modified zirconium-based organic frameworks

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 33, P. 103516 - 103516

Published: Jan. 4, 2024

Water contamination by heavy metals due to various anthropogenic activities has grown be a serious global issue that needs addressed ensure effective remediation. Recently, Metal-Organic Frameworks (MOFs), class of porous materials, have emerged as promising candidates for removal. In this study, we synthesized and evaluated novel 1,3,5-benzene tricarboxylic acid (BTC)-based metal-organic framework (UIO-66-BTC(Zr)) its ability adsorb metal Pb(II) from wastewater. X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), photoelectron (XPS) characterization methods were used demonstrate the synthesis UIO-66-BTC(Zr). The proposed mechanisms binding UIO-66-BTC(Zr) identified chelation/coordination, pore filling, electrostatic interaction steps. According our findings, remarkable adsorption capacity 881.35 mg/g exhibits significant selectivity ions in solution over Cd(II), Cu(II), Zn(II), Ni(II) ions. Additionally, crystal structure adsorbed MOF remained stable, performance consistent five cycles, signifying potential sustainable efficient adsorbent removing real-world effluents. findings study open up prospects application new removal hazardous contaminants industrial Moreover, research serves crucial basis advancing studies on cost-effective environmentally friendly modification/synthesis upscaling production wider

Language: Английский

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Synergistic adsorption-photocatalytic remediation of methylene blue dye from textile industry wastewater over NiFe LDH supported on tyre-ash derived activated carbon

Applied Surface Science, Journal Year: 2024, Volume and Issue: 679, P. 161205 - 161205

Published: Sept. 12, 2024

Language: Английский

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Textile Industrial Wastewater Treatment using Eco-Friendly Kigelia Fibrous Biochar: Column and Batch Approaches

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Citric acid-modified rape straw: a novel adsorbent for the removal of crystal violet dye from aqueous solutions

Journal of Dispersion Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 12

Published: Jan. 8, 2025

Rape straw, an agricultural by-product, was modified with citric acid (CA) to adsorb the cationic dye crystal violet (CV) from aqueous solution. The morphology and surface properties of adsorbent were observed by scanning electron microscopy (SEM) X-ray photoelectron analysis (XPS). experimental conditions optimized effects initial pH, dosage, concentration contact time. results showed that CA-modified rape straw had a higher adsorption capacity for compared pristine rapes straw; at pH 3.0 ± 0.15 removal ratio increased up 98.30% 5.80%. This study provides detailed comparison time curve different concentrations. CV rate 97.43% 0.25%, 99.09% 0.61% 99.11% 2.20% respectively within 30 min high low Langmuir isotherm proved be most appropriate analytical method predict results. maximum 1012.62 6.40 mg g−1. kinetic process on new investigated using model based pseudo-first pseudo-second order. good fit correlation coefficient R2 ≥ 0.99 suggested order has affinity mechanism.

Language: Английский

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