Recycling electroplating sludge as an efficient photocatalyst for degradation of ciprofloxacin in aqueous solution

Journal of the Air & Waste Management Association, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

This study explored the potential of electroplating sludge (ESs) as a novel and effective photocatalyst for photodegradation ciprofloxacin in aqueous solutions. The characterization ESs was evaluated using sophisticated techniques, such XRD, SEM, TEM, EDX, FTIR, BET. ESs-derived materials were found to primarily consist various metal oxides (Ni-O, Cu-O), which can absorb ultraviolet or visible light. effectiveness assessed by measuring decomposition Ciprofloxacin (CIP) results showed that after 180 minutes UVA illumination, remarkable 93.87% achieved CIP concentration 10 mg L−1, pH = 9, catalyst dose 1.0 g/L indicating an method removing from wastewater. effect other factors, antibiotics, dyes, phenol, also carried out illustrate high dominant capacity degradation organic compounds. radical scavenger demonstrated h+ O2●− are main species CIP. research presents adaptable, scalable framework sustainable reuse. easily implementable promises widespread adoption, enhancing sustainability resource efficiency repurposing treated waste antibiotic degradation.

Language: Английский

---

Construction of HCP@CNFs with high specific surface area via in-situ growth for highly efficient dye pollutants removal

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 69, P. 106902 - 106902

Published: Dec. 31, 2024

Language: Английский

---

Comparative Study of Cu Ion Adsorption by Nano-Hydroxyapatite Powder Synthesized from Chemical Reagents and Clam Shell-Derived Calcium Sources

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(17), P. 1431 - 1431

Published: Sept. 1, 2024

The increasing contamination of water sources by heavy metals necessitates the development efficient and sustainable adsorption materials. This study evaluates potential nano-hydroxyapatite (HA) powders synthesized from chemical reagents (Chem-HA) clam shells (Bio-HA) as adsorbents for Cu ions in aqueous solutions. Both were using microwave irradiation at 700 W 5 min, resulting nano-sized rod-like particles confirmed HA X-ray diffraction (XRD). Bio-HA exhibited higher crystallinity (67.5%) compared to Chem-HA (34.9%), which contributed Bio-HA’s superior performance. maximum capacities 436.8 mg/g 426.7 Chem-HA, determined Langmuir isotherm model. Kinetic studies showed that ion followed pseudo-second-order model, with achieving equilibrium faster displaying a rate constant (6.39 × 10⁻4 g/mg·min) than (5.16 g/mg·min). Thermodynamic analysis indicated process was spontaneous endothermic, requiring less energy (ΔH° = 39.00 kJ/mol) 43.77 kJ/mol). Additionally, activation lower (41.62 (46.39 kJ/mol), suggesting better efficiency. formation new Cu2(OH)PO4 phase after adsorption, evidenced XRD, replaced Ca lattice. These findings demonstrate Bio-HA, derived natural sources, offers environmental benefits recyclable material, enhancing metal removal efficiency while contributing sustainability utilizing waste materials reducing an impact.

Language: Английский

---

Direct conversion of resin button waste into adsorbent for efficient removal of dyes and heavy metals from aqueous solution

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 114975 - 114975

Published: Nov. 1, 2024

Language: Английский

---