Solar light-induced degradation of hazardous organic pollutants using Diospyros kaki mediated green synthesized zirconium doped nickel oxide-zinc oxide nanocomposite DOI Creative Commons
Sirajul Haq,

Aqsa Waheed Raja,

Sadiq ur Rehman

et al.

Materials Research Express, Journal Year: 2024, Volume and Issue: 11(10), P. 105006 - 105006

Published: Oct. 1, 2024

Abstract This study explores an eco-friendly route using Diospyros kaki leaves extract as a stabilizing and reducing agent for the fabrication of 0.5% 1% Zr-NiO/ZnO NCs. The fabricated samples were characterized x-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), diffuse reflectance (DRS), scanning electron microscopy (SEM), energy-dispersive (EDX) transmission (TEM). physicochemical analysis confirmed successful zirconium-doped NiO/ZnO (Zr-NiO/ZnO NCs) UV-DRS showed widening band gap from 3.43 eV to 3.66 with increase in amount dopant 1%. SEM TEM micrographs revealed formation nanostructures having irregular morphologies which unevenly distributed. Furthermore, EDX results characteristic signal zirconium, nickel, zinc, oxygen sample photocatalytic activity NCs was evaluated by performing degradation brilliant green (BG) 4-nitrophenol (4-NP) under direct solar light, enhanced performance. 0.5%Zr-NiO/ZnO NC demonstrated performance (86.4% BG 89% 4-NP) compared (67% 51% 4-NP respectively) can be related lower less agglomeration nanostructures.

Language: Английский

Electrochemical detection and removal of brilliant blue dye via photocatalytic degradation and adsorption using phyto-synthesized nanoparticles DOI Creative Commons
Kashif Ali Khan, Afzal Shah, Jan Nisar

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(4), P. 2504 - 2517

Published: Jan. 1, 2024

A sensitive electrochemical platform is sensing brilliant blue dye and monitors its removal from wastewater by degradation adsorption processes.

Language: Английский

Citations

20
2D Nanostructured MXene-Based Silver Nanoparticles for Photocatalytic Degradation of Safranin Dye DOI Open Access
Muhammad Faheem, Asim Riaz, Manawwer Alam

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 14(3), P. 201 - 201

Published: March 19, 2024

Due to their unique chemical structure, MXenes have been recognized as a potential material, having high surface area, thermal and electrical conductivity, tunable band gap, showing great hydrophilicity stability. The adsorption reducing properties of MXene-based 2D nanomaterials make them efficient photocatalysts for degrading organic pollutants. Silver nanoparticles were synthesized over the exfoliated MXene sheets (1:50 1:20 by weight silver salt) using polyvinyl pyrrolidone dispersant. elemental composition morphology nanocatalysts Ag20@Ti3C2Tx Ag50@Ti3C2Tx analyzed X-ray diffraction (XRD) analysis, photoelectron spectroscopy (XPS), energy-dispersive (EDX) spectroscopy, field-emission scanning electron microscopy (FESEM). FESEM micrographs reveal porous Ti3C2Tx obtained continuously stirring Ti3AlC2 44 h at 60 °C, providing platform growth Ag nanoparticles. Diffused reflectance (DRS) indicates that bare show decrease in gap value from 2.4 1.35 1.41 eV Ag20@Ti3C2Tx, respectively, which enables nanocomposites excellent catalytic performance degrade around 99% safranin dye within 15 min concentration 5 mg Ag50@Ti3C2Tx.

Language: Английский

Citations

10
An electroanalytical sensor for the detection of antibiotic cefoperazone sodium sulbactam sodium residue in wastewater DOI Creative Commons
Mohsin Javed, Afzal Shah, Muhammad Umar Farooq

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(3), P. 2011 - 2022

Published: Jan. 1, 2025

The misuse and uncontrolled release of pharmaceuticals into water bodies lead to environmental challenges the development resistance, thereby reducing their effectiveness.

Language: Английский

Citations

1
Electrochemical and optical protocols for the detection and removal of an antibiotic drug rifaximin from wastewater DOI Creative Commons

Ifra Riffat,

Afzal Shah

RSC Advances, Journal Year: 2024, Volume and Issue: 14(32), P. 22867 - 22876

Published: Jan. 1, 2024

Improper disposal of pharmaceutical drugs is increasing the pollution level water reservoirs which in turn adversely impacts ecosystem. The current study presents an electrochemical scaffold that comprises a glassy carbon electrode modified with amino-functionalized multiwalled nanotubes (NH2-fMWCNTs) for detection drug rifaximin wastewater. Electrochemical impedance spectroscopic characterization revealed efficient charge transport through surface. Square wave voltammetry was employed probing electro-oxidation antibiotic rifaximin. Under optimized experimental conditions, designed sensor demonstrated qualities sensitivity, repeatability, and reproducibility as required practical applicability sensing device. After contaminant, its removal from imperative. In this regard adsorption method using ZnO nanoparticles adsorbents developed led to At lower adsorbate concentration, found occur according Langmuir model while at higher concentration data followed Freundlich model. rate over pseudo-second-order kinetics.

Language: Английский

Citations

3
On-site electrochemical detection of environmental pollutants DOI
Afzal Shah,

Sundas Sultan,

Jan Nisar

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 579 - 615

Published: Jan. 1, 2024

Citations

1
Metal-Based Nanomaterials for the Sensing of NSAIDS DOI Creative Commons

Farah Quddus,

Afzal Shah,

Naimat Ullah

et al.

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(7), P. 630 - 630

Published: April 4, 2024

Cadmium sulfide and zinc oxide nanoparticles were prepared, characterized used as electrode modifiers for the sensing of two non-steroidal anti-inflammatory drugs (NSAIDs): naproxen mobic. The structural morphological characterization synthesized was carried out by XRD, UV-Vis spectroscopy, FTIR scanning electron microscopy. electrode’s enhanced surface area facilitated signal amplification selected NSAIDs. CdS-modified glassy carbon (GCE) electro-oxidation signals to four times that bare GCE, while ZnO-modified GCE led a two-fold enhancement in oxidation both NSAIDs occurred pH-dependent manner, suggesting involvement protons their transfer reactions. experimental conditions mobic optimized and, under conditions, modified demonstrated qualities sensitivity selectivity, fast responsiveness target

Language: Английский

Citations

0
Green Synthesis of BaSO4 NPs Using Antigonon Leptopus and Its Applications on Dye Degradation and Seedling Growth DOI
D. Abiya Chelliah,

P. Cynthia,

S. Paul David Selson

et al.

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(37)

Published: Sept. 27, 2024

Abstract This study presents barium sulfate nanoparticles (BaSO 4 NPs) synthesis and characterization using leaf extract from Antigonon leptopus Hook. & Arn. Various analytical techniques such as X‐ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive (EDX), Fourier transform infra‐red spectroscopy (FTIR) were employed to confirm the structural properties, crystallinity, surface morphology, chemical purity, presence of organic compounds. The XRD analysis indicated crystallinity BaSO NPs with an average crystallite size 7.8 nm, whereas SEM imaging revealed round morphology EDX confirmed good purity. FTIR provided evidence both compounds extract. synthesized NP was then applied degrade four different azo azonium dyes, demonstrating effectiveness under various conditions. Furthermore, impact on germination growth foxtail millet ( Setaria italica (L.) P.Beauv.) investigated. Preliminary findings suggested that promoted seed at low concentrations. However, caution is advised higher concentrations may have a toxic effect. Overall, this highlights potential bio‐forged for environmental remediation (dye degradation) agricultural applications (enhancement growth) while emphasizing importance dosage control due toxicity

Language: Английский

Citations

0
Solar light-induced degradation of hazardous organic pollutants using Diospyros kaki mediated green synthesized zirconium doped nickel oxide-zinc oxide nanocomposite DOI Creative Commons
Sirajul Haq,

Aqsa Waheed Raja,

Sadiq ur Rehman

et al.

Materials Research Express, Journal Year: 2024, Volume and Issue: 11(10), P. 105006 - 105006

Published: Oct. 1, 2024

Abstract This study explores an eco-friendly route using Diospyros kaki leaves extract as a stabilizing and reducing agent for the fabrication of 0.5% 1% Zr-NiO/ZnO NCs. The fabricated samples were characterized x-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), diffuse reflectance (DRS), scanning electron microscopy (SEM), energy-dispersive (EDX) transmission (TEM). physicochemical analysis confirmed successful zirconium-doped NiO/ZnO (Zr-NiO/ZnO NCs) UV-DRS showed widening band gap from 3.43 eV to 3.66 with increase in amount dopant 1%. SEM TEM micrographs revealed formation nanostructures having irregular morphologies which unevenly distributed. Furthermore, EDX results characteristic signal zirconium, nickel, zinc, oxygen sample photocatalytic activity NCs was evaluated by performing degradation brilliant green (BG) 4-nitrophenol (4-NP) under direct solar light, enhanced performance. 0.5%Zr-NiO/ZnO NC demonstrated performance (86.4% BG 89% 4-NP) compared (67% 51% 4-NP respectively) can be related lower less agglomeration nanostructures.

Language: Английский

Citations

0