Synergistic interactions and reaction mechanisms of biochar surface functionalities in antibiotics removal from industrial wastewater

Environmental Pollution, Journal Year: 2024, Volume and Issue: 356, P. 124365 - 124365

Published: June 11, 2024

Language: Английский

---

A cheap 3D-printed boron, nitrogen, sulfur-MXene quantum dots-based target plate for multi-dimensional MALDI MS imaging of small-molecule environmental pollutants

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160596 - 160596

Published: Feb. 1, 2025

Language: Английский

---

Preparation and Characterization of Unactivated, Activated, and γ-Fe2O3 Nanoparticle-Functionalized Biochar from Rice Husk via Pyrolysis for Dyes Removal in Aqueous Samples: Comparison, Performance, and Mechanism

ChemEngineering, Journal Year: 2025, Volume and Issue: 9(2), P. 30 - 30

Published: March 10, 2025

This study aimed at preparing three types of biochar derived from rice husk via pyrolysis, including unactivated biochar, chemically activated after with H3PO4, and impregnated γ-Fe2O3 nanoparticles. These materials were subsequently characterized using Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), Brunauer–Emmett–Teller (BET) analysis, which revealed favorable textural properties, such as an increased surface area porosity, well the presence functional groups that facilitate adsorption methylene blue malachite green in aqueous solutions. Several factors affect capacity, type material, pH effect, adsorbent dosage, evaluated optimized. The behavior was analyzed isotherm kinetic models to better understand mechanisms involved. Under optimal conditions, biochar@γ-Fe2O3 NPs emerged most effective material due its high area, functionalized surface, magnetic allowing easy water recovery without need for complex instrumentation. Among evaluated, pseudo-second-order model exhibited highest linear regression coefficient (R2 = 0.99), supporting a chemisorption process driven by strong interactions stable chemical bond formation between adsorbate adsorbent, while equilibrium data fit Sips model, indicating combination monolayer multilayer mechanisms. achieved removal efficiencies 97% 95% green, demonstrating performance reusability over four cycles. Moreover, possible mechanism MB on proposed explain interaction dye surface. Thus, this work demonstrates is sustainable cost-effective wastewater treatment, integrating circular economy principles transforming into high-value material. incorporation nanoparticles enhances enabling recovery, providing eco-friendly scalable solution removal.

Language: Английский

---

Microbial modification enhances tetracycline removal by biochar during electrochemical advanced oxidation through a multilevel mechanism

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116476 - 116476

Published: April 1, 2025

Language: Английский

---

Extraction and detection of sulfonamide antibiotics in milk using magnetic solid-phase adsorbent based on molecular mechanics and DFT calculations

Microchemical Journal, Journal Year: 2024, Volume and Issue: 206, P. 111556 - 111556

Published: Sept. 12, 2024

Language: Английский

---

Efficient Photocatalytic Degradation of Sulfonamides in Wastewater Using g-C3N4 Heterostructures: A Critical Review

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 36, P. 103854 - 103854

Published: Oct. 5, 2024

Language: Английский

---

Strengthened Removal of Tetracycline by a Bi/Ni Co-Doped SrTiO3/TiO2 Composite under Visible Light

Catalysts, Journal Year: 2024, Volume and Issue: 14(8), P. 539 - 539

Published: Aug. 19, 2024

A two-step hydrothermal method was used to first obtain a SrTiO3/TiO2 composite then dope the with Bi, Ni and Bi/Ni. Morphology, crystalline structures, surface valances optical features of Bi-, Ni-, Bi/Ni-doped were assessed. XRD XPS analysis showed that Bi successfully doped existed in Bi(3+) Ni(2+) oxidation state. UV–vis further revealed bandgap energies TiO2 calculated be 3.14 eV 3.04 eV. By comparison, Bi/Ni doping resulted narrowing bandgaps 2.82 eV, 2.96 2.69 respectively. The removal ability investigated tetracycline as representative pollutant. After 40 min exposure visible light, co-doped photocatalyst able remove 90% mineralization rate about 70%. In addition, first-order constant 0.0074 min−1 for increased 0.0278 after co-doping. strengthened by attributed mainly enhanced absorption light co-doping decreases energies. At same time, material robust against changes pH. Removal stable pH changed from 5 9. Tetracycline inhibited certain degree presence nitrate, phosphate high concentration humic acid. Moreover, exhibited strong structural stability reusability. photocatalysis mechanism photogenerated holes ·O2− radicals main oxidative species proposed based on entrapping experiments EPR results.

Language: Английский

---

Sustainable remediation of macrolide antibiotic from water using a novel Fe oxide/biochar nanocomposite: Adsorption behaviour and mechanistic analysis

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 115208 - 115208

Published: Dec. 1, 2024

Language: Английский

---

Magnetic carboxymethyl nanocellulose modified with cerium-based metal–organic framework as a new adsorbent for tetracycline removal from aqueous solution

Journal of Industrial and Engineering Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

---

Extraction and Detection of Sulfonamide Antibiotics in Milk Using Magnetic Solid-Phase Adsorbent Based on Molecular Mechanics and Dft Calculations

Published: Jan. 1, 2024

Language: Английский

---