High adsorption capacities of crystal violet dye by low-cost activated carbon prepared from Moroccan Moringa oleifera wastes: Characterization, adsorption and mechanism study

Diamond and Related Materials, Journal Year: 2023, Volume and Issue: 135, P. 109834 - 109834

Published: March 10, 2023

Language: Английский

---

Development of a magnetic orange seed/Fe3O4 composite for the removal of methylene blue and crystal violet from aqueous media

Biomass Conversion and Biorefinery, Journal Year: 2023, Volume and Issue: 14(20), P. 25685 - 25700

Published: Aug. 2, 2023

Language: Английский

---

Effective removal of methylene blue and crystal violet by low-cost biomass derived from eucalyptus: Characterization, experiments, and mechanism investigation

Environmental Technology & Innovation, Journal Year: 2023, Volume and Issue: 33, P. 103459 - 103459

Published: Nov. 30, 2023

Herein, a novel succinic anhydride modified eucalyptus wood biomass adsorbent (SAEPB) was synthesized. The removal of crystal violet (CV) and methylene blue (MB) dyes investigated by this adsorbent. Systematic experiments were conducted to assess various factors affecting dye efficiency, including dose, pH contact time. results showed that SAEPB achieved impressive rates 99.86% for CV 99.79% MB at an dosage 0.03 g, initial solution concentration 100 mg L-1, 9, time 12 h. Multiple adsorption isotherms employed, with the Langmuir model providing best fit experimental data. maximum capacity found be 469.494 g-1 380.398 298.15 K, respectively. pseudo-second order accurately describes rate process in kinetic developed. Furthermore, thermodynamic parameters indicated SAEPB/CV interface exhibits endothermic, spontaneous increased randomness, while SAEPB/MB exothermic, enhanced system order. This low-cost derived from modification significant potential, offering cost-effective promising applications.

Language: Английский

---

Recycled gold-reduced graphene oxide nanocomposite for efficient adsorption and photocatalytic degradation of crystal violet

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Feb. 22, 2024

Abstract In this study, gold-reduced graphene oxide (Au@rGO) nanocomposite has been synthesized by repurposing electronic waste and dry batteries. This innovative approach involved utilizing the graphite rod from batteries to produce reduced (rGO), which was subsequently modified through incorporation of gold nanoparticles obtained recycled waste. methodology marks a significant breakthrough in recycling, presenting cost-effective sustainable means creating novel nanocomposites for applications photocatalysis adsorption, particularly removal crystal violet (CV) aqueous media. The Au@rGO characterized using X-ray diffraction, scanning electron microscopy, energy dispersed X-ray, N 2 adsorption/desorption. Parameters that affect adsorption photocatalytic degradation CV dye have studied detail. optimal conditions were pH 10, equilibrium time 30 min, concentration 10 mg/L adsorbent dosage 40 mg. Furthermore, isotherm kinetics also studied. techniques reached 95% 99%, respectively. Consequently, results showed onto mesoporous is more proper way than technique removing designed photocatalyst high efficiency it can be reused activated several times so used real water treatment applications.

Language: Английский

---

Facile synthesis of graphene nanosheets on wastewater sediments for high efficient adsorption of methylene blue

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 337, P. 126366 - 126366

Published: Jan. 21, 2024

Language: Английский

---

Design of a novel Schottky diode-functionalized Z-scheme C-doped BiOI@Bi0 noble-metal-free plasmonic photocatalyst for efficient photo-oxidation of azo dyes and endocrine-disrupting chemical under visible light irradiation

Materials Today Physics, Journal Year: 2024, Volume and Issue: 42, P. 101352 - 101352

Published: Feb. 1, 2024

Language: Английский

---

Design and evaluation of a polyaniline-Azadirachta indica composite for efficient dye removal: Insights from experimental and theoretical simulations

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 27, P. 100926 - 100926

Published: July 20, 2024

Language: Английский

---

Classical and advanced isotherms to model the adsorption of drugs, dyes and metals on activated carbonaceous materials: a review

Environmental Chemistry Letters, Journal Year: 2024, Volume and Issue: 22(5), P. 2375 - 2404

Published: June 13, 2024

Language: Английский

---

Adsorptive removal of toxic methylene blue and crystal violet dyes from aqueous solutions using Prunus spinosa: isotherm, kinetic, thermodynamic, and error analysis

Biomass Conversion and Biorefinery, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

---

Efficient synthesis and investigation of waste-derived adsorbent for water purification. Exploring the impact of surface functionalization on methylene blue dye removal

Bioresource Technology, Journal Year: 2023, Volume and Issue: 390, P. 129847 - 129847

Published: Oct. 12, 2023

In pursuit of sustainable water management, the preparation adsorbent materials via waste upcycling for purification practices plays a decisive role. The sulphonated biochar, PiNe-SO3H, employed to target methylene blue dye adsorption, was successfully synthesized mild, step-economical chemical carbonization-functionalization reaction. presence SO3H groups on PiNe-SO3H surface played critical role in significantly enhancing adsorption capacity. observed MB uptake predominantly attributed chemisorption processes as evidenced by results from kinetics, thermodynamics, and isotherms. To further confirm -SO3H mechanism, comparison made with other PiNe lacking sulphonic groups, highlighting superior capacity PiNe-SO3H. Additionally, fast efficient regeneration process proposed develop truly minimized protocol, enabling recovery up 94 % ethanolic mixture used during this step.

Language: Английский

---