Article
Materials Science, Ceramics
M. Rocha, Francisca P. Araujo, S. Castro-Lopes, Idglan S. de Lima, Edson Cavalcanti Silva-Filho, Josy Anteveli Osajima, Carla S. Oliveira, Bartolomeu C. Viana, Luciano C. Almeida, Y. Guerra, R. Pena-Garcia
Summary: In this study, the influence of Fe and Pr addition on the structural, optical, and antibacterial properties of spherical ZnO nanoparticles synthesized via sol gel method was investigated. The lattice constants values increased while the average crystallite size decreased with varying Pr concentration. Raman and FTIR spectroscopies confirmed the single-phase formation of ZnO and the presence of oxygen vacancies. The samples exhibited agglomerated spherical morphology and the textural properties were affected by the inclusion of Fe. The synthesized materials showed promising antimicrobial activity against Escherichia coli and Staphylococcus aureus due to nanomaterial-bacteria interactions.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Willians Lopes de Almeida, Nilson S. Ferreira, Fabiano Severo Rodembusch, Vania Caldas de Sousa
Summary: ZnO nanoparticles were successfully synthesized using cassava starch as a chelating agent. Analysis through XRD, FTIR, and TEM revealed the properties and structures of the synthesized nanoparticles. The results showed that the average size of the nanoparticles increased with the rise in calcination temperature, and the optical properties were affected accordingly.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Ceramics
Negar Azizabadi, Parviz Aberoomand Azar, Mohammad Saber Tehrani, Pirouz Derakhshi
Summary: In this study, bioactive glass with zinc and silver content was synthesized via the sol-gel route. The results showed that the samples with higher zinc and silver content exhibited better bioactivity, antibacterial properties, and formation of hydroxyapatite. Among all the specimens, the sample BG-A2Z3 demonstrated optimal properties and is considered the most suitable candidate for orthopedic applications.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Physics, Multidisciplinary
Anamika Kem, Mohd Rehan Ansari, P. Prathap, M. Jayasimhadri, Koteswara Rao Peta
Summary: Eco-friendly stable ZnO nanoparticles were successfully synthesized using citrus limon as a chelating agent. The structural and optical properties of the nanoparticles were studied at different annealing temperatures. The results showed that the particle size increased due to agglomeration or Ostwald ripening at high temperature, and the crystallite size and bandgap also increased slightly. The emission peaks of the nanoparticles were analyzed and attributed to the near band edge emission and the transition of electrons from traps to the valence band.
Article
Chemistry, Multidisciplinary
Anithadevi Sekar, Ramanan Vadivel, Ramanujam Ganesh Munuswamy, Rakhi Yadav
Summary: The study introduces a new fingerprint visualizing agent, the biocompatible zinc oxide-carbon dots/silica gel (C-ZnO-dots/Si) nanopowder, which is low-cost and non-toxic. Results show that the synthesized nanopowder performs well in LF identification and can extract features of Level 1-3.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
N. H. Alonizan
Summary: Pure and Al-doped ZnO nanoparticles were synthesized using hydrothermal technique. The structural and phase analysis showed that Al doping increased the crystallite size and caused compressive stress formation in the material network. Other studies investigated the impact of different Al doping ratios on powder morphology, optical bandgap, and electronic defects localized in the material band-gap.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
S. S. Banifatemi, F. Davar, B. Aghabarari, Juan A. Segura, Francisco J. Alonso, Seyyed M. Ghoreishi
Summary: The CoFe2O4 nanoparticles were synthesized using an eco-friendly, simple, and inexpensive method, with the effect of different amounts of plant extract as a complexing agent on the final product's structure, morphology, and magnetic properties discussed. The synthesized NPs were characterized to investigate their size, shape, crystallinity, and magnetic properties, revealing a crystalline cubic phase with an average crystallite size of 15-30 nm. Analysis of the vibrating sample magnetometer (VSM) showed that the saturation magnetization and coercivity of the final product decrease with increasing amount of plant extract.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Leandro L. Peres, Camila M. Cholant, Rafaela M. J. Lemos, Marco P. Rodrigues, Luana U. Kruger, Richard Pereira, Wladimir H. Flores, Andre Gundel, Douglas L. da Silva, Agnieszka Pawlicka, Cesar O. Avellaneda
Summary: The study used the peroxovanadate sol-gel method to produce ZnO-doped V2O5 thin films, demonstrating that ZnO doping improved the cyclic stability and reversibility of the films and resulted in a mixture of crystalline phases.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Leandro L. Peres, Camila M. Cholant, Rafaela M. J. Lemos, Marco P. Rodrigues, Luana U. Krueger, Richard Pereira, Wladimir H. Flores, Andre Guendel, Douglas L. da Silva, Agnieszka Pawlicka, Cesar O. Avellaneda
Summary: This study used the peroxovanadate sol-gel method to produce ZnO-doped V2O5 thin films and investigated the effect of doping on the electrochromic and structural characteristics of the films. The results showed that ZnO doping improved the cyclic stability and reversibility of the films, making them promising candidates for electrochromic device applications.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Paper & Wood
Sohair Farag, Ahmed Amr, Amira El-Shafei, Mohsen S. Asker, Hassan M. Ibrahim
Summary: Bacterial cellulose (BC) produced from Achrmobacter sp. M15 was used to reduce titanium tetra isopropoxide into titanium dioxide nanoparticles (TiO(2)NPs) via a green process. The TiO(2)NPs were characterized to have innovative properties when used in cellulose-based fabrics, demonstrating self-cleaning and superior antimicrobial activities. Results indicated that TiO(2)NPs prepared using BC had unique properties compared to those prepared by the sol-gel method.
Article
Chemistry, Inorganic & Nuclear
Prathibha Vasudevan, Arun S. Prasad
Summary: Zinc oxide nanoparticles were successfully synthesized using sol-gel technique and Azadirachta indica leaves extract, with characterization done through various techniques to study their structure, size, morphology, and crystallite parameters. Optical properties investigation showed that these nanoparticles have potential for white luminescence applications.
JOURNAL OF CLUSTER SCIENCE
(2021)
Article
Environmental Sciences
Tugba Gur, Ismet Meydan, Hamdullah Seckin, Muhammed Bekmezci, Fatih Sen
Summary: The study investigated the structure and properties of zinc oxide nanoparticles (ZnO NPs) obtained from Thymbra Spicata L. plant using green synthesis method. The nanoparticles showed antimicrobial effects, radical quenching activity, and protective effect against DNA damage, indicating their potential for diverse applications.
ENVIRONMENTAL RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Luis A. Hermida-Montero, F. Paraguay-Delgado, Luisa F. Cruz, Daniel Carrillo, Arturo Mtz-Enriquez, Nicolaza Pariona
Summary: This study investigated the in-vitro antifungal activity of ZnO nanoparticles against mutualistic fungi of ambrosia beetles, revealing that uncoated ZnO nanoparticles obtained by the hydrothermal method showed higher antifungal capacity. The coating of NPs was found to be more critical than their size in improving antifungal properties.
Article
Green & Sustainable Science & Technology
M. K. Shreya, C. Indhumathi, G. R. Rajarajeswari, Veeramuthu Ashokkumar, T. Preethi
Summary: The usage of templates in synthesizing titania can increase surface area and shift absorption edge to visible range effectively. Green synthesis using bio-waste as templates for nano-titania synthesis has gained substantial attention as an effective approach for photocatalytic applications.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2021)
Article
Materials Science, Multidisciplinary
Diego H. de Hoyos-Sifuentes, Perla J. Resendiz-Hernandez, Jose A. Diaz-Guillen, Roca M. Ochoa-Palacios, Gerardo Altamirano-Guerrero
Summary: The present study synthesized MgFe2O4 nanoparticles with different molar ratios of Mg/Fe by sol-gel and coated them with polyethylene glycol (PEG) using the agitation method. The synthesized nanoparticles and nanocomposites were characterized using various techniques, including XRD, TGA, DTA, SEM-EDX, TEM, VSM, and FTIR. The results showed the structural and morphological properties of the nanoparticles and demonstrated their potential for biomedical applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Ceramics
Ghulam Muhiuddin, Ismat Bibi, Zarish Nazeer, Farzana Majid, Shagufta Kamal, Abida Kausar, Qasim Raza, Norah Alwadai, Safa Ezzine, Munawar Iqbal
Summary: The pristine and Ni-doped BaNixFe12-xO19 nanoparticles were fabricated via a microemulsion approach, and the impact of dopants on the dielectric, optical, structural, and photocatalytic properties was investigated. The doped nanoparticles exhibited enhanced remanence, saturation polarization, and photocatalytic degradation activity. The optical band gap was reduced due to the doping, and the dielectric properties were also improved. The highly doped catalyst demonstrated efficient electron-hole pair separation and achieved a higher degradation rate of crystal violet dye under visible light irradiation.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
Munawar Iqbal, Sohail Chand, Zia Ul Haq
Summary: This study examines the impact of economic policy uncertainty on the relationship between clean energy consumption and CO2 emissions. The findings suggest that economic policy uncertainty significantly increases CO2 emissions in both developing and developed countries. Therefore, reducing policy uncertainty can drive the development of environmental innovation and clean energy technologies.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Biochemistry & Molecular Biology
Abida Kausar, Sadia Tul Zohra, Sana Ijaz, Munawar Iqbal, Jibran Iqbal, Ismat Bibi, Shazia Nouren, Noureddine El Messaoudi, Arif Nazir
Summary: Dyes are emerging as harmful pollutants, and there is an urgent need for their removal from wastewater. Adsorption technology using cellulose-based materials has been extensively studied and found to be effective in dye removal. This review discusses the preparation and modification of cellulose-based adsorbents, compares their efficiency with other adsorbents, and considers the adsorption conditions. Studies from 2003 to 2022 on cellulose-based adsorption are included, and the properties of different cellulose materials for efficient dye removal are compared. Modified cellulosic materials are highly effective adsorbents for wastewater remediation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Multidisciplinary
Sadia Ata, Ifra Shaheen, Hira Aslam, Ijaz Ul Mohsin, Norah Alwadai, Maryam Al Huwayz, Munawar Iqbal, Umer Younas
Summary: A La-based nanocomposite (LaxBa1_xSryCd1yyO3 +/-delta) was synthesized using the sol-gel method. The effects of Ba and Sr doping on the structural, dielectric, and photocatalytic characteristics of the La-based perovskite nanocomposite were investigated. The synthesized material was characterized using techniques such as FTIR and XRD, confirming the formation of the nanocomposite. The results showed enhanced dielectric properties and excellent photocatalytic activity for the degradation of methylene blue, making the synthesized nanomaterial a potential candidate for photocatalytic applications.
RESULTS IN PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Sheza Muqaddas, Mohsin Javed, Sohail Nadeem, Muhammad Adeel Asghar, Ali Haider, Muhammad Ahmad, Ahmad Raza Ashraf, Arif Nazir, Munawar Iqbal, Norah Alwadai, Azhar Ahmad, Abid Ali
Summary: Electrochemical sensors are in high demand for real-time monitoring of health parameters. A flexible and wearable glucose sensor composed of copper oxide-modified carbon nanotube fibers (CuO@CNTFs) has been developed, with excellent catalytic activity. The unique structure of CNT fibers provides efficient conductivity and mechanical strength, surpassing other fibrous materials. The deposition of CuO nanoparticles onto the fiber surface further enhances sensor performance. The CuO@CNTFs exhibit high sensitivity, low detection limit, wide linear range, and superior electrode performance, making them a promising solution for glucose sensing.
Article
Biotechnology & Applied Microbiology
Arfaa Sajid, Qaisar Manzoor, Anam Sajid, Arif Nazir, Muhammad Arsalan Mumtaz, Najum Fatima, Samar Zuhair Alshawwa, Munawar Iqbal, Umer Younas
Summary: This study focuses on isolating and characterizing the essential oil obtained from Citrus pseudolimon fruit peel for inhibition of cancer and inflammation. The C. pseudolimon essential oil (CPEO) was isolated and characterized. MTT assay was performed to evaluate its anticancer potential and western blotting analysis was conducted to study the expression of proteins involved in cell proliferation and anti-apoptosis. Results showed that CPEO exhibited a dose-dependent inhibition of cell proliferation and down-regulated NF-KB and related genes responsible for cell proliferation and anti-apoptosis.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)
Article
Chemistry, Applied
Sadia Ata, Anila Tabassum, Ifra Shaheed, Ijaz ul Mohsin, Norah Alwadai, Maryam Al Huwayz, Munawar Iqbal, Arif Nazir
Summary: In this study, zinc oxide nanorods (ZnO-NR) were synthesized via the hydrothermal method using ZnCl2 as a precursor. The synthesized ZnO-NR were characterized using advanced techniques and were found to effectively sequester lead ions. The removal of lead ions was achieved under specific conditions, and the lead ion sequestration onto ZnO-NR followed kinetic and isotherm models. The results suggest that ZnO-NR has the potential to be used as an adsorbent for lead ion removal from industrial effluents.
ADSORPTION SCIENCE & TECHNOLOGY
(2023)
Review
Chemistry, Physical
Faisal Ali, Maryam Ameen, Umer Younas, Muhammad Pervaiz, Zohaib Saeed, Adnan Ashraf, Faiza Hassan, Qaisar Manzoor, Shahid Iqbal, Munawar Iqbal
Summary: Eosin Y (EY) is a toxic dye and various methods have been reported for its degradation, including the use of polymer stabilized metal nanoparticles synthesized employing green methods. This review article focuses on the synthesis, characterization, chemistry, mechanism, kinetics, and thermodynamics of catalytic degradation of EY using polymeric stabilized nanoparticles. It also discusses various nano catalytic systems used for the degradation of EY and their potential commercial applications.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Arif Nazir, Ali Waqas, Muhammad Imran, Abid Ali, Munawar Iqbal, Hina Chaudhry, Ismat Bibi, Abida Kausar, Norah Alwadai, Naveed Ahmad
Summary: Graphene oxide (GO) and reduced graphene oxide (rGO) are two-dimensional carbon materials with unique optical, electrical, mechanical, and thermal properties, which can form composites with different materials. In this study, a nanocomposite of GO and rGO with silver (Ag) was fabricated. GO was produced from graphite powder using the Modified Hummer method and then reduced into rGO using ascorbic acid. The properties of rGO were enhanced compared to GO due to the increased inter-planar distance. The nanocomposite of GO and rGO with Ag was produced using the Turkevich method. FTIR confirmed the presence of different functional groups in the desired product. XRD spectra showed an amorphous structure or lattice in rGO and suggested it as a better membrane material than GO for water purification. Similarly, Raman spectra showed lower D and G band values for rGO compared to GO. The rGO-Ag composite degraded methylene blue dye by up to 79.36%. Therefore, it is concluded that the fabricated material could potentially be used for degrading other toxic pollutants from industrial effluents.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Faisal Ali, Anosha Safdar, Umer Younas, Mika Sillanpaa, Muhammad Pervaiz, Arif Nazir, Muhammad Naeem, Munawar Iqbal, Abdullah A. Al-Kahtani, Ammar Mohamed Tighezza
Summary: Nanoparticles were synthesized using Fragaria ananassa seed extract as a source of reducing and stabilizing agents. The characteristics of the nanoparticles were determined using various analytical techniques, confirming their size, morphology, and functional groups. The nanoparticles showed potential for the rapid degradation of toxic organic dyes, indicating their use as a tool to combat pollution caused by carcinogenic dyes.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Hafiz M. A. Asif, Shagufta Kamal, Aziz-ur-Rehman, Ismat Bibi, Najla AlMasoud, Taghrid S. Alomar, Munawar Iqbal
Summary: A series of novel triazole analogs bearing piperidine were synthesized and characterized. These triazole analogs showed potent inhibitory activity against acetylcholinesterase and varying inhibition activity against α-glucosidase. Molecular docking studies confirmed the experimental findings.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Arif Nazir, Shakeel Alam, Norah Alwadai, Mazhar Abbas, Ismat Bibi, Abid Ali, Naveed Ahmad, Maryam Al Huwayz, Munawar Iqbal
Summary: In this study, copper nanoparticles were synthesized using leaves extract of Citrullus colocynthis as a reducing agent. The synthesized nanoparticles exhibited promising photocatalytic and antibacterial activities, as well as significant antioxidant potential. The results highlight the potential of green synthesis for the fabrication of Cu NPs with desirable properties.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Aneesa Fatima, Haia Aldosari, M. S. Al-Buriahi, Maryam Al Huwayz, Z. A. Alrowaili, Mohammed S. Alqahtani, Muhammad Ajmal, Arif Nazir, Munawar Iqbal, Raqiqa Tur Rasool, Sheza Muqaddas, Abid Ali
Summary: In this study, cobalt-based ferrite nanoparticles were successfully fabricated over the surface of carbon nanotube fiber (CNTF) as an efficient catalyst for the oxygen evolution reaction (OER). The electrochemical characterization exhibited excellent electrocatalytic performance, and the modified electrode showed a higher surface area and lower charge transfer resistance. Therefore, this electrode could be a promising alternative for efficient electrochemical water splitting reactions.
Article
Chemistry, Multidisciplinary
Zarish Nazeer, Ismat Bibi, Farzana Majid, Shagufta Kamal, Muhammad Imran Arshad, Aamir Ghafoor, Norah Alwadai, Abid Ali, Arif Nazir, Munawar Iqbal
Summary: A series of Cd- and Er-doped bismuth ferrites were synthesized using a simple microemulsion technique. The influence of Cd and Er doping on the structural, ferroelectric, photocatalytic, and dielectric properties of bismuth ferrite (BFO) was examined in this research. The prepared materials showed improved saturation polarization and dielectric properties with increased dopant concentration. The photocatalytic activity of the doped materials also increased significantly compared to undoped BiFeO3. Rating: 8/10.
Article
Physics, Condensed Matter
M. I. Khan, Saddam Hussain, Muhamad Saleem, Fatimah Mohammed Alzahrani, Muhammad Siddique, M. S. Hassan, Allah Ditta Khalid, Munawar Iqbal
Summary: The sol-gel method was used to deposit Ti-doped MAPbBr3 films on FTO-glass substrates with different doping ratios (0%, 4%, and 6%). XRD analysis confirmed the cubic structure of all films, and the 4% Ti-doped film exhibited a large grain size, low band gap energy, and high refractive index. Solar cells fabricated using the 4% Ti-doped MAPbBr3 film showed improved performance in terms of current density, open circuit voltage, fill factor, and efficiency.
PHYSICA B-CONDENSED MATTER
(2024)
