ZnO-MoS 2 supported on boron nitride nano-sheets for the adsorptive removal and degradation of ciprofloxacin from aqueous solution DOI

Shivani Shukla,

Ravindra Kumar Gautam, Ida Tiwari

et al.

International Journal of Environmental & Analytical Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 19

Published: Dec. 16, 2024

MoS2/ZnO supported on boron nitride nanocomposite (BN/MoS2/ZnO) was synthesised via simple co-precipitation and mechanical stirring method. The removal of ciprofloxacin (CIP) from wastewater examined by utilising BN/MoS2/ZnO nanomaterial. nanomaterial successfully characterised sophisticated techniques such as FT-IR, XRD, HR-TEM, HR-SEM EDX analysis. further utilised to examine the impact different optimising factors, including contact time solution pH. result shows that pH 4 optimum parameter for CIP within 90 min time, which 81% 67.72% were removed. adsorption follows pseudo-second-order kinetics (R2 = 0.99) isotherm modelling best explained Langmuir model (qm 83.333 mg g−1). Thermodynamic study spontaneous endothermic nature CIP. For catalytic degradation, ultrasonication method gives result, where 98.25% degraded 60 ultrasonic wave exposure. Recycling achieved using a 0.1 M NaOH solution, it can be used up five cycles.

Language: Английский

One-Step Environment-friendly Synthesized Semiconductor ZnS/OE-PE: Solar Light Assisted Evaluation of Antibiotic Degradation, Pt-Free Hydrogen Production, and Antibacterial Assessment DOI Creative Commons
Mohammad Ehtisham Khan

Materials Today Sustainability, Journal Year: 2025, Volume and Issue: unknown, P. 101071 - 101071

Published: Jan. 1, 2025

Language: Английский

Citations

2
Dielectric and Photocatalytic Performance of Heterostructured Nanocomposites of Cobalt and Nickel Oxides Embedded in Zeolite 4A Matrix. DOI Open Access

K. E. Rakesh,

Rosy Antony, S. Sandeep

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(2)

Published: Jan. 1, 2025

Abstract Organic pollutants like malachite green pose severe environmental risks due to their toxicity and persistence in water bodies. This study explores an eco‐friendly solution for removal via photocatalytic degradation using cobalt nickel oxide‐doped zeolite nanocomposites (CoZ NC & NiZ NC), synthesized through a co‐precipitation method. X‐ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy‐dispersive (EDX) analyses confirm the formation of FCC‐structured nanometal oxides on matrix. Optical spectral analysis reveals low bandgap energies (2.84 eV CoZ 2.81 enabling efficient photocatalysis under visible light. These demonstrated effective photodegradation green, showcasing remediation potential. Dielectric studies indicate significantly higher dielectric permittivity compared pristine zeolite. enhancement is attributed internal barrier layer capacitance arising from variable oxidation states metal oxide nanoparticles interfacial space charge polarization between matrix dopants. Uniformly distributed provide superior unevenly arranged NC. Additionally, lower dissipation factors highlight suitability as promising k‐dielectric materials energy storage applications.

Language: Английский

Citations

0
Metal-organic framework UiO-66-NH2 functionalized polydopamine-modified magnetic multi-walled carbon nanotubes for convenient magnetic solid-phase extraction of sixteen quinolones DOI
Lin Lv, Hongmei Liu, Lei Wang

et al.

Food Chemistry, Journal Year: 2025, Volume and Issue: 486, P. 144604 - 144604

Published: May 2, 2025

Language: Английский

Citations

0
Efficient Photocatalytic Degradation of Ibuprofen from Aquatic Waste Using a Microwave Synthesized MoS2@Cs3Bi2Br9 Nanocomposite DOI

Saima Jan,

Ajit Sharma, Omar Bashir Wani

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: May 13, 2025

The persistent presence of pharmaceutical contaminants such as ibuprofen (IBF) in aquatic ecosystems poses significant environmental and health risks, conventional wastewater treatments often fail to eliminate these recalcitrant compounds. Herein, a novel MoS2@Cs3Bi2Br9 heterojunction photocatalyst was synthesized via sol-gel microwave methods address this challenge. Comprehensive characterization (XRD, FTIR, SEM, EDX, UV-vis) confirmed the structure composite optical properties, revealing reduced bandgap 3.04 eV (vs pristine Cs3Bi2Br9) due type II with staggered band alignment. This configuration enabled efficient charge separation, photogenerated electrons migrated from conduction (CB) Cs3Bi2Br9 MoS2 (-0.3 eV), while holes transferred inversely, suppressing recombination enhancing redox activity. Under optimized conditions (20 mg/L IBF, pH 6.0, visible light, 0.1% H2O2), 5% achieved 96.77% degradation efficiency within 3 h, outperforming individual catalysts (61% for MoS2-sol-gel, 76% MoS2-microwave, 69% Cs3Bi2Br9). energy bands facilitate electron transfer hole migration reverse direction, amplifying hydroxyl radical (•OH) generation. Low-dose H2O2 (0.1%) acted an scavenger boost •OH production, excess (1%) promoted recombination, reducing efficiency. exhibited exceptional reusability, retaining >90% activity over five cycles H2O2-assisted regeneration. work underscores potential sustainable, high-performance degrading pollutants, offering viable strategy mitigate emerging water systems.

Language: Английский

Citations

0
ZnO-MoS 2 supported on boron nitride nano-sheets for the adsorptive removal and degradation of ciprofloxacin from aqueous solution DOI

Shivani Shukla,

Ravindra Kumar Gautam, Ida Tiwari

et al.

International Journal of Environmental & Analytical Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 19

Published: Dec. 16, 2024

MoS2/ZnO supported on boron nitride nanocomposite (BN/MoS2/ZnO) was synthesised via simple co-precipitation and mechanical stirring method. The removal of ciprofloxacin (CIP) from wastewater examined by utilising BN/MoS2/ZnO nanomaterial. nanomaterial successfully characterised sophisticated techniques such as FT-IR, XRD, HR-TEM, HR-SEM EDX analysis. further utilised to examine the impact different optimising factors, including contact time solution pH. result shows that pH 4 optimum parameter for CIP within 90 min time, which 81% 67.72% were removed. adsorption follows pseudo-second-order kinetics (R2 = 0.99) isotherm modelling best explained Langmuir model (qm 83.333 mg g−1). Thermodynamic study spontaneous endothermic nature CIP. For catalytic degradation, ultrasonication method gives result, where 98.25% degraded 60 ultrasonic wave exposure. Recycling achieved using a 0.1 M NaOH solution, it can be used up five cycles.

Language: Английский

Citations

0