Article
Chemistry, Physical
Aijuan Xie, Haoye Wang, Zerui Zhu, Wanqi Zhang, Xiang Li, Qing Wang, Shiping Luo
Summary: The mesoporous CeO2-alpha-MnO2-rGO prepared by hydrothermal method showed excellent electrochemical performance, with high specific capacitance, energy density, and power density, as well as ultrahigh cycle stability, making it a suitable electrode material for supercapacitors.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Shipeng Wu, Huimin Liu, Zhen Huang, Hualong Xu, Wei Shen
Summary: In this study, a facile solvent-thermal-reduction strategy was used to fabricate an O-vacancy-rich porous MnO2 nanosheet catalyst (MnO2-PS) for propane catalytic oxidation. The catalyst exhibited improved redox ability and oxygen activation capacity, which accelerated the oxidation of light alkanes. Additionally, the catalyst possessed highly accessible surface and high density of exposed active sites, facilitating the adsorption and activation of reactant molecules.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Inigo Gonzalez de Arrieta, Leire del Campo, Domingos De Sousa Meneses
Summary: The dielectric function of a cerium oxide nanopowder was investigated using infrared spectroscopy, with Bergman's spectral representation and a semi-quantum dielectric function model enabling an accurate retrieval of the main features of lattice dynamics. The observed differences between the nanopowder and single crystal dielectric functions can be explained by phonon confinement, due to the absence of significant lattice strain or vacancy concentration. The results were validated by comparison to literature data and additional spectroscopic techniques, as well as by direct measurements of powder filling factors.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Zhou Xu, Xingzhong Guo, Wenjun Song, Junzhang Wang, Tengteng Qin, Yifei Yuan, Jun Lu
Summary: The stability and reversibility of anionic redox reactions are enhanced by a simple sulfur-assisted surface modification method, which modulates the material's energy band and traps the escaping O-n(-) species, resulting in improved capacity retention and voltage stability.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Muling Zeng, Xu Zhang, Jie Tang, Xingfei Liu, Yichao Lin, Dongdong Guo, Yuping Zhang, Shijie Ju, Guillermo Fernandez-Varo, Ya-Chao Wang, Xiangyu Zhou, Gregori Casals, Eudald Casals
Summary: This study investigates the evolution behavior of two commonly used cerium oxide nanozymes (CeO(2)NZs) in different fluids. The results show that the biocompatibility and antioxidant activity of CeO(2)NZs are retained in all cases, despite the different behaviors observed in different fluids. This provides experimental evidence supporting the therapeutic effectiveness of CeO(2)NZs for the treatment of chronic inflammation and cancer.
Article
Materials Science, Biomaterials
Lu Fu, Rupeng Li, John M. Whitelock, Megan S. Lord
Summary: This study reveals that functionalized cerium oxide nanoparticles with heparin corona can promote angiogenesis, with the surface grafting density positively correlated with angiogenesis. Heparin-nanoceria supports FGF2 signaling in vitro and promotes FGF2-mediated angiogenesis in vivo.
REGENERATIVE BIOMATERIALS
(2022)
Article
Engineering, Environmental
Junxiang Ning, Peiyang Shi, Maofa Jiang, Chengjun Liu, Zhongshuai Jia
Summary: This study found that cerium oxide/iron oxide nanocomposites with a lower band gap and strong acid-base buffering capacity have potential application value in catalysis, adsorption, and anticorrosive coatings.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Johoon Kim, Gwanui Hong, Luda Mazaleuskaya, Jessica C. Hsu, Derick N. Rosario-Berrios, Tilo Grosser, Park F. Cho-Park, David P. Cormode
Summary: The ultrasmall CeONP demonstrated potent antioxidant and anti-inflammatory properties, reducing acute inflammation and being effectively excreted from the body within a short period, minimizing long-term toxicity concerns.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Multidisciplinary Sciences
Maribel Guzman, Wei Tian, Chantal Walker, Jose E. Herrera
Summary: Doped and undoped Cu2O nanoparticles were prepared and characterized using various techniques, showing that they have a narrow band gap and exhibit a blue shift compared to bulk Cu2O.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Aneeqa Masood, Hajra Hanif, Shahid M. Ramay, Mahmood Ul Hassan, Sultan Akhtar, A. R. Rehman, Asif Mahmood, Syed Mansoor Ali, Abubaker A. Siddig, Mabrook Saleh Amer, Naushad Ahmad, Aamir Razaq
Summary: Flexible paper-based energy storage electrodes were fabricated by using cerium oxide and cerium oxide-manganese oxide nanoparticles synthesized via co-precipitation synthesis technique, and lignocellulose fibers extracted from Monochoria Vaginalis plant as binder. Structural and optical properties were analyzed by XRD and FTIR. The fabricated CeO2/LC and Ce0.98 Mn0.02O2/LC composite sheets exhibited promising electrochemical performances.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Rachel Woods-Robinson, Yihuang Xiong, Jimmy-Xuan Shen, Nicholas Winner, Matthew K. Horton, Mark Asta, Alex M. Ganose, Geoffroy Hautier, Kristin A. Persson
Summary: Many semiconductors have weak or forbidden transitions at their band edges, creating a widened transparency region. The presence of forbidden transitions has been neglected in the study of new p-type transparent conductors, unlike in n-type transparent conductors. Through computation and analysis of absorption spectra, it is found that compounds with highly localized band-edge states are more likely to exhibit forbidden transitions. This study suggests potential p-type and n-type transparent conductor candidates with forbidden transitions.
Article
Chemistry, Multidisciplinary
M. Noor, M. A. Al Mamun, A. K. M. Atique Ullah, A. Matsuda, G. Kawamura, M. A. Hakim, M. F. Islam, M. A. Matin
Summary: The phyto-synthesized CeO2/CePO4 nanocomposites exhibit excellent physical and chemical properties, showing antibacterial effects and low cytotoxicity. The formation of these nanocomposites is induced by the presence of phosphate ions in the Artocarpus heterophyllus extract, which reduces grain growth and bandgap through redox cycling.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
Masazumi Tamura, Eiji Sagawa, Akira Nakayama, Yoshinao Nakagawa, Keiichi Tomishige
Summary: The hybrid catalyst of CeO2 and 2-cyanopyridine is effective in oxidizing alkanes with high selectivity to alcohols and ketones, with the mechanism attributed to the N atom in the CN group playing a key role on the CeO2 surface.
Article
Materials Science, Multidisciplinary
Sh Tabatabai Yazdi, M. Mousavi, Gh H. Khorrami
Summary: V2-xCoxO5 nanoparticles with Co concentrations up to x = 0.2 were synthesized via a sol-gel route in gelatin medium. The synthesized particles mainly consist of crystalline alpha-V2O5 phase, with the particle size increasing from about 34 to 49 nm as the Co content rises. These nanoparticles are found to be direct band gap semiconductors with band gap energies controlled by surface and interface effects rather than chemical composition, and the ferromagnetic nature is influenced by Co substitution.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Ibrahim Mustapha Alibe, Khamirul Amin Matori, Mohd Hafiz Mohd Zaid, Salisu Nasir, Ali Mustapha Alibe, Mohammad Zulhasif Ahmad Khiri
Summary: The study successfully fabricated Ce3+ doped willemite nanoparticles using low-cost techniques, and thoroughly investigated the effects of calcination temperatures and dopant concentration on the structural and optical properties of the material. The increase in dopant concentration leads to lattice expansion and larger nanoparticle sizes. The optical properties show a decrease in band gap energy with increased doping, and the energy level of Ce3+ ions influences the willemite crystal lattice, resulting in a decrease in green and blue emission intensities.
Article
Materials Science, Ceramics
Anees A. Ansari, M. A. Majeed Khan
Summary: Luminescent CeF3 and CeF3:Tb3+ nanoparticles were synthesized at a lower temperature using a wet chemical method. The introduction of Tb3+ ion into the CeF3 crystal lattice was confirmed, and the nanoparticles showed superior luminescent and optical properties. The nanomaterials have potential applications in laser-based biological events.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Cherifa Boulechfar, Hana Ferkous, Sihem Boufas, Malika Berredjem, Amel Delimi, Souad Djellali, Amel Djedouani, Rania Bahadi, Sihem Laamari, Krishna Kumar Yadav, Byong-Hun Jeon, Wahiba Bouchelaghem, Manawwer Alam, Yacine Benguerba
Summary: In this study, experimental and computational investigations were conducted on a Schiff base and its metal complexes. The azote atom coordinates with the metal according to the FT-IR spectra. Powder X-ray Diffraction experiments show that the crystalline nature of metal complexes is responsible for their enhanced crystallinity. X-ray photoelectron spectroscopy shows that the binding energy of the nitrogen atom's 1s electrons is increased in metal complexes due to complexation. Cyclic voltammograms and DPPH radical scavenging assay demonstrate that transition metal complexes are more effective at scavenging DPPH radicals compared to the free ligand. The theoretical analysis of the investigated complexes provides evidence of the metal's bonding potential in the environment.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Physical
Muhammad Ahmed Khan, Kanwal Shahbaz, Ghulam M. Mustafa, Shahid M. Ramay, Shahzad Naseem, Shahid Atiq
Summary: Easy-to-synthesize multiferroic materials have shown impressive magnetoelectric coupling, promising for multistate memory devices. In this study, a series of tri-phase composites (0.7BiFeO3 + 0.3BaTiO3) + xMnFe2O4 were synthesized using a facile two-step method. The composition with x = 0.02 exhibited the highest recoverable energy density and efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Anwar ul Haq, Sadia Sagar Iqbal, Afaq Ahmad, Tasawer Shahzad Ahmad, Abu Bakar, Shahid M. Ramay
Summary: The opto-electronic properties and mechanical stability of A2TlBiI6 (A = Cs and Rb) were investigated using density functional theory. The results showed that these halide double perovskite materials exhibit strong structural and dynamical stability, with direct band gaps of 2.0 and 2.1 eV for Cs2TlBiI6 and Rb2TlBiI6, respectively. These materials show promising potential for use in multi-junction solar cells for renewable energy applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Environmental Sciences
Maroua Nessaibia, Houria Ghodbane, Hana Ferkous, Slimane Merouani, Manawwer Alam, Marco Balsamo, Yacine Benguerba, Alessandro Erto
Summary: The photoactivated periodate (UV/IO4-) process was used to degrade acid orange 10 (AO10) dye. Periodate ions produce reactive radicals that accelerate the degradation. Increasing initial periodate concentration enhances dye removal rate, but concentrations over 3 mM slow down the degradation. On the other hand, increasing initial dye concentrations reduces the degradation performance. pH is critical for AO10 breakdown. Salts slow down dye degradation, while UV/IO4- is more efficient in distilled water. Surfactants and sucrose affect the dye's decomposition rate. Tertbutanol does not affect dye breakdown, indicating a non-(OH)-O-center dot pathway. The UV/IO4- system eliminates 56.5% and 60.5% of initial COD after 60 and 120 min, suggesting its effectiveness for treating effluents with textile dyes.
Article
Microbiology
Shehnaz, I. B. Prasher, Naushad Ahmad, Mukhtar Ahmed, Shivani Raghuwanshi, Vijay Kumar, Sharf Ilahi Siddiqui, Seungdae Oh
Summary: In this study, white-rot fungus Rigidoporus vinctus was used to biosorb Congo red and Methylene blue dyes. The results showed that Rigidoporus vinctus was more efficient than other bio-adsorbents and had a maximum biosorption capacity of 54.0 mg/g for Congo red and 80.6 mg/g for Methylene blue. The seed germination test also confirmed the reduction in toxicity levels of the dyes.
Article
Microbiology
Iqra Noshair, Zakia Kanwal, Ghazala Jabeen, Mateen Arshad, Fakhar-Un-Nisa Yunus, Ramsha Hafeez, Rida Mairaj, Imran Haider, Naushad Ahmad, Suliman Yousef Alomar
Summary: Probiotics, specifically Lactobacillus rhamnosus, were found to improve growth and disease resistance in Nile tilapia fish. The supplemented fish showed increased growth, improved macromolecular values, higher thyroid hormone levels, and better survival rates. This study highlights the importance of probiotics as feed supplements in aquaculture.
Article
Food Science & Technology
Mukul Kumar, Deepika Kaushik, Ravinder Kaushik, Azhar Khan, Lucia Billeci, Emel Oz, Charalampos Proestos, Charles Brennan, Naushad Ahmad, Tahra Elobeid, Fatih Oz
Summary: This study evaluated the acute biological effects of an herbal formulation for treating obesity. The results showed that the herbal formulation significantly reduced weight and improved obesity-related biomarkers.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Food Science & Technology
Poonam Jaglan, Deepika Kaushik, Mukul Kumar, Ashwani Kumar, Jasjit Kaur, Emel Oz, Charles Brennan, Charalampos Proestos, Margaret Brennan, Naushad Ahmad, Tahra Elobeid, Fatih Oz
Summary: The aim of this research was to characterize the physicochemical and techno-functional properties of Moringa oleifera flower powder. The results showed that the flower powder had certain densities, water solubility, and foaming properties. Furthermore, the flower extract exhibited significant antioxidant and antibacterial activities.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Optics
M. A. Majeed Khan, Anees A. Ansari, Wasi Khan, Maqusood Ahamed, Jahangeer Ahmed, Avshish Kumar
Summary: In this study, SWCNTs/MnO2 nanocomposite was prepared by growing MnO2 nanoparticles directly on single-walled carbon nanotubes (SWCNTs) through a hydrothermal process. The nanocomposite was characterized using various techniques, including FESEM, HRTEM, Raman, BET, XPS, FTIR, UV-Vis, photoluminescence, and EIS. The results showed excellent growth of SWCNTs and decoration with MnO2 nanoparticles. The prepared nanocomposite exhibited superior electrochemical performance and photocatalytic activity compared to MnO2 nanoparticles alone, making it a promising material for wastewater treatment.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Aicha Rizi, Amel Sedik, Anissa Acidi, Khadidja Otmane Rachedi, Hana Ferkous, Malika Berredjem, Amel Delimi, Amdjed Abdennouri, Manawwer Alam, Barbara Ernst, Yacine Benguerba
Summary: This study evaluated the inhibitory properties of essential oils extracted from the Cuminum cyminum plant on mild steel corrosion in hydrochloric acid. The results showed that the Cuminum cyminum extract effectively reduced the corrosion of mild steel and formed a protective layer. The study also investigated the inhibition mechanism using various analytical techniques and simulations.
Article
Polymer Science
Wejdan Al-otaibi, Naser M. Alandis, Yasser M. Al-Mohammad, Manawwer Alam
Summary: This study developed a novel environmentally friendly anticorrosive coating using graphene oxide (GO)-doped organic-inorganic hybrid polyurethane nanocomposite. The synthesized coating showed excellent physical and anticorrosion properties.
Article
Materials Science, Ceramics
Anees A. Ansari, M. A. Majeed Khan, Sadia Ameen
Summary: Pr3+-ion doped YF3, LaF3, and GdF3 nanoparticles were investigated for their physiochemical characteristics. The results showed that the crystal phase and crystallinity of the nanoparticles were influenced by the dopant ions and the host ion's ionic radius. YF3:Pr nanoparticles exhibited better emission and excitation transitions compared to GdF3:Pr and LaF3:Pr nanoparticles. The study suggests that YF3:Pr nanoparticles are a useful host matrix for the development of luminescent phosphor materials.
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Anees A. Ansari, M. A. Majeed Khan
Summary: Tb3+-ion-doped metal phosphates nanoparticles were synthesized using a urea-supported thermal decomposition method, and the influence of the host lattice on the crystal structure, optical and luminescent properties of the doped Tb3+ ion was analyzed. The findings are highly significant for the development of efficient photonic-based materials.
BULLETIN OF MATERIALS SCIENCE
(2023)
Retraction
Chemistry, Multidisciplinary
Mingzhou Meng, Rui Zhang, Zhenlong Cheng, Xinmeng Fa, Jianghua Yang, Anees A. Ansari, Jun Ou, Christian Wurth, Ute Resch-Genger
Summary: The retraction request is submitted for the article "Effect of Ca2+ doping on the upconversion luminescence properties of NaYF4:Yb3+/Tm3+ nanoparticles and study of its temperature measurement performance" by Mingzhou Meng et al., published in CrystEngComm, 2022, 24, 4887-4898, https://doi.org/10.1039/D2CE00562J.
