Article
Chemistry, Multidisciplinary
Zheng Kang, Xiangmeng Li, Xiaodong Zhao, Xiaoqiang Wang, Jian Shen, Huifen Wei, Xijing Zhu
Summary: This paper proposes a new method for preparing flexible pressure sensors by combining an imprinting technique with blade-coating of a graphene-silver nanosheet-polymer nanocomposite. The sensor consists of interdigital electrodes, a sensing layer, and a micropillar array structure. The sensitive layer morphology is characterized using scanning electron microscopy (SEM). The test results show that the sensor has an initial resistance of 1.6 ohms, a sensitivity of 0.04 kPa(-1), and a response time of about 286 ms. Furthermore, the sensor exhibits a highly hydrophobic wetting property with a contact angle of 137.2 degrees, indicating its self-cleaning property. Finally, the prepared sensor is demonstrated as a wearable device, showing promising potential in practical applications.
Article
Environmental Sciences
Sarah Briceno, Carlos Reinoso
Summary: This study revealed the molecular interaction between chitosan, graphene, and CoFe2O4 nanoparticles with commercial glyphosate, and quantitatively measured the removal of glyphosate using a low-cost nanocomposite as bioadsorbent.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Nishesh Kumar Gupta, Herlys Viltres, Yeisy C. Lopez, Gauri Salunkhe, Arijit Sengupta
Summary: The magnetic nanocomposite CoFe2O4/Graphene oxide showed efficient separation and adsorption of f-block elements, with sorption kinetics following a pseudo-second-order model. Thermodynamic analysis indicated the process to be entropically driven.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Haishan Shen, Byungkwon Jang, Jiyoung Park, Hyung-jin Mun, Hong-Baek Cho, Yong-Ho Choa
Summary: In this study, a one-step fabrication of a Bi2Te3-nanosheet/reduced-graphene-oxide (BT/rGO) nanocomposite was successfully achieved for electrochemical dopamine detection. The BT/rGO-modified electrode exhibited higher catalytic activity and lower detection limit, as well as satisfactory reproducibility, stability, and selectivity.
Article
Chemistry, Multidisciplinary
T. E. P. Alves, H. V. S. Pessoni, A. Franco Jr, C. Burda, A. C. S. Samia
Summary: In this study, a cobalt ferrite-gold nanocomposite was successfully synthesized and characterized using various experimental methods. The results showed that the nanocomposite has specific structure and properties, which are suitable for magnetic-plasmonic applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Physical
Saeid Choopannezhad, S. A. Hassanzadeh-Tabrizi
Summary: In this research, CoFe2O4 nanostructures were synthesized using a sol-gel auto-combustion method, and a novel approach was used to synthesize CoFe2O4-CaCO3 nanocomposites. Characterization of the samples showed that they had particle sizes ranging from 30 to 60 nm, with spherical and irregular shapes. The MTT assay revealed that increasing the CaCO3 content in the nanocomposites increased the cell viability. The samples also exhibited appropriate drug loading and controlled drug delivery capability, making them suitable for hyperthermia treatment.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Applied
J. Toman, M. Snirer, R. Rincon, O. Jasek, D. Vsiansky, A. M. Raya, F. J. Morales-Calero, J. Munoz, M. D. Calzada
Summary: Efficient gas-phase synthesis of few-layer graphene nanosheets (GNS) is achieved by controlling the high-temperature environment and the reaction pathway of gas-phase species. This study investigated the factors affecting the efficiency of such processes and found that increasing microwave power had a limiting effect on both product yield and material quality. The change in reaction pathway increased the formation of C2H4, limiting the achievable nanopowder yield. The formation of GNS-Cu nanoparticles composite at high microwave powers led to a decrease in the material's oxidation resistance.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Energy & Fuels
Munirah Abdullah Almessiere, Yassine Abdelhamid Slimani, Mohammed Hassan, Mohammed Ashraf Gondal, Emre Cevik, Abdulhadi Baykal
Summary: The synthesized CFO-xNFSO nanocrystals exhibit good potential in energy storage applications, showing enhanced capacitance and relatively high energy density in supercapacitor electrodes. The cubic spinel ferrite phase of the NCs is verified by XRD, SEM, and HR-TEM techniques. The magnetic properties of the NCs with different x ratios suggest a good exchange-coupling in the CFO-xNFSO magnetic nanocrystals.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Mohammad Reza Poor Heravi, Bayan Azizi, Evan Abdulkareem Mahmood, Abdol Ghaffar Ebadi, Mohammad Javed Ansari, Somyeh Soleimani-Amiri
Summary: This study investigates the potential application of Pt-decorated BC3 nanosheet in the detection of paracetamol. The results show that Pt-decoration greatly enhances the sensing response of BC3 nanosheet to paracetamol, which is of great importance for the determination of this drug.
MOLECULAR SIMULATION
(2022)
Article
Engineering, Environmental
Renxin Xu, Dewen Xu, Zhe Zeng, Dan Liu
Summary: An ultralight magnetic-carbon hybrid material was designed to achieve superior microwave absorption performances through self-assembly and compositional control, offering new insights for designing highly effective microwave absorbers.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Huiyun Ren, Huan Li, Honglei Fan, Guisheng Qi, Youzhi Liu
Summary: This paper proposes a new method for the rapid preparation of CoFe2O4-graphene oxide nanocomposite (CoFe2O4-GO) using the high gravity technology. The impinging stream-rotating packed bed (IS-RPB) process can complete the preparation process in less than 1 minute. The experimental results show that CoFe2O4-GO-RPB has good adsorption performance towards heavy metal lead, with an adsorption capacity of 459.8 mg.g(-1). The adsorption mechanism of lead by CoFe2O4-GO was mainly electrostatic adsorption, ion exchange, and complexation, as confirmed by XPS and FT-IR analysis. Therefore, this study provides a convenient and rapid method for the preparation of CoFe2O4-GO with excellent reactivity, enriching the application of high-gravity co-precipitation in the removal of hazardous heavy metals from wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Polymer Science
Rima D. Alharthy, Ahmed Saleh
Summary: A new chemi-resistive, flexible, and selective ammonia gas sensor was developed in this study, with good response to NH3, reproducibility, ultra-low detection limit, and excellent flexibility.
Article
Materials Science, Multidisciplinary
Joan Chepkoech Kilele, Rajasekhar Chokkareddy, Gan G. Redhi
Summary: In this study, a nanocomposite biosensor based on cobalt ferrite nanoparticles, multi-walled carbon nanotubes, and lipase enzyme was developed for the detection of salbutamol medication. The biosensor exhibited good stability, sensitivity, and selectivity, and showed promising applicability in real pharmaceutical samples.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Monika Patel, Neha Bisht, Priyanka Prabhakar, Raj Kumar Sen, Pradip Kumar, Neeraj Dwivedi, Mohammad Ashiq, D. P. Mondal, Avanish Kumar Srivastava, Chetna Dhand
Summary: We developed an effective electrochemical sensor using a ternary nanocomposite of reduced graphene oxide functionalized with polydopamine and alanine for simultaneous detection of four heavy metal ions (Cd2+, Pb2+, Fe2+, and Cu2+). The sensor exhibited high sensitivity and low interference in detecting the targeted heavy metal ions in water and soil samples with detection limits and sensitivities provided.
ENVIRONMENTAL RESEARCH
(2023)
Article
Materials Science, Ceramics
Tahta Amrillah, Le Thi Quynh, Ahmad Taufiq, Jenh-Yih Juang
Summary: The interplay between structure and magnetic couplings is crucial for scientific research and designing functional oxide BiFeO3 (BFO)-CoFe2O4 (CFO) heteroepitaxy. Various substrates have been used to modify the strain state of BFO-CFO and alter the magnetic anisotropy and magnetoelectric coupling. This research investigates the effect of CFO nanopillars' composition ratio on the magnetic properties of BFO-CFO heteroepitaxy and sheds light on the strain and interfacial effect of nanopillars-matrix relationship.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Masoume Malmir, Majid M. Heravi, Zahra Yekke-Ghasemi, Masoud Mirzaei
Summary: In this study, a tri-component composite consisting of Fe3O4 nanoparticles, Keggin-type polyoxometalate, and graphene oxide was prepared and investigated as a catalyst for the oxidation of sulfides to sulfoxides. The catalyst showed excellent stability, high yields, and recyclability, making it a promising choice for organic-inorganic hybrid catalytic reactions conducted under mild conditions.
Article
Chemistry, Inorganic & Nuclear
Samuel D. Juarez-Escamilla, Sriloy Dey, Bruno Donnadieu, T. Keith Hollis
Summary: In this study, a bidentate Mo complex was synthesized using metalation and transmetalation methodology. The synthesis was optimized to achieve a high yield. The crystal structure of the bidentate complex was determined. Additionally, alternative forms of ligands were discovered in the reaction.
Article
Chemistry, Inorganic & Nuclear
Mohamed H. Abdel-Rhman, Ghada Samir, Mostafa A. Hussien, Nasser M. Hosny
Summary: This study investigated the dissolution performance of hydrazine carbonate solution on zirconium dibutyl phosphate (Zr-DBP), and found that hydrazine carbonate solution could promote the dissolution of Zr-DBP. The effects of dissolution temperature and hydrogen peroxide concentration on the dissolution efficiency were also explored, and the corrosion effect on stainless steel by hydrazine carbonate solution was studied.
Article
Chemistry, Inorganic & Nuclear
Qiaofang Fu, Fangyu Tan, Wu Ying
Summary: This study successfully prepared vermiculite/g-C3N4/TiO2 composites and found that under specific conditions, the composites exhibited excellent degradation effects, with a high degradation rate for methylene blue. Additionally, the composites were able to enhance surface area, reduce carrier loading rate, improve light energy utilization, and enhance durability.
Article
Chemistry, Inorganic & Nuclear
Annabelle G. W. Hodson, Robert T. Mason
Summary: Functionalised polystyrene resins have been found to be efficient catalysts in the synthesis of specific complexes, with the conversion rate controlled by the polymer structure. The addition of amines or amino acids can further yield substituted 13-butadienyl complexes, which have been analyzed by NMR.
Article
Chemistry, Inorganic & Nuclear
C. Kavitha, S. Anbarasan, P. Subramaniam
Summary: The sulfoxidation of PMAAs by the oxo(salen)chromium(V) complex in aqueous acetonitrile medium was studied. The rate of the reaction is influenced by the polarity of the medium and the substituents on PMAA, with electron donating substituents accelerating the reaction and electron withdrawing substituents retarding the reaction.
Article
Chemistry, Inorganic & Nuclear
Qiang-Qiang Liu, Mithun Kumar Ghosh, Shu-Lan Cai, Xiao-Hong Liu, Lu Lu, Mohd. Muddassir, Tanmay Kumar Ghorai, Jun Wang
Summary: Three newly developed coordination polymers (CPs) with semiconducting properties were synthesized using hydrothermal methods. These CPs exhibit superior photocatalytic activity and can degrade organic pollutants effectively.
Article
Chemistry, Inorganic & Nuclear
Mehrnaz Aliahmadi, Ali Nemati Kharat, Jan Janczak
Summary: This study proposes a method for synthesizing allyl alcohol using cost-effective and renewable bio-resource glycerol. By utilizing catalysts, alcohol as a solvent, and a reducing agent, allyl alcohol with an efficiency of 100% was obtained. The structures of the newly synthesized complexes were determined using X-ray single crystallography.
Article
Chemistry, Inorganic & Nuclear
Ji-Yan Gao, Nan Zhang, Dong-Sheng Huang, Xiang-Rong Liu, Zai-Wen Yang, Shun-Sheng Zhao
Summary: Two new transition metal complexes I and II were synthesized and characterized. The complexes exhibited strong thermal stabilities and showed effective binding to CT-DNA and BSA. Complex II exhibited stronger inhibition activity against P. aeruginosa than gentamicin sulfate. These complexes have potential applications in drug research.
Article
Chemistry, Inorganic & Nuclear
Rishabh Ujjval, Hilal Ahmad Khan, Chinnappan Sivasankar, Natesan Thirupathi
Summary: In this study, a rigid 2-aminobenzimidazole type guanidine and its platinum complexes were synthesized through a series of reactions and characterized by various physical and chemical methods. The reaction mechanism was also explained through DFT calculations.
Article
Chemistry, Inorganic & Nuclear
Marcelo Carpes Nunes, Thais Zaboenco, Vinicius Kemper Melara, Gabriel Barros Baptistella, Andre Luiz Barboza Formiga, Andersson Barison, Fabio Souza Nunes
Summary: A new luminescent molecular thermometer has been developed, which uses the spin-crossover equilibrium of a nickelcyclen derivative to measure temperature. The sensor shows high sensitivity and accuracy.
Article
Chemistry, Inorganic & Nuclear
Yuyu Shan, Zhenqin Zhao, Xia Zhang, Zhan Wu, Xiu-Ling Li
Summary: In this study, a new bridging ligand was synthesized through refluxing, and two mononuclear Cu(I) complexes and two trinuclear Cu(I)-Eu(III) complexes were obtained through self-assembly. The Cu(I) antenna chromophores successfully transferred energy to the Eu(III) centers, achieving sensitized Eu(III) luminescence.
Article
Chemistry, Inorganic & Nuclear
Gabriela Sanchez-Lecuona, Mayra C. Vazquez-Nunez, Bruno Donnadieu, Miguel A. Munoz-Hernandez, Virginia Montiel-Palma
Summary: The reaction of RuHCl(PPh3)3 with GaMe3 has been studied and the obtained complexes were analyzed in detail. The results indicate the formation of a Ru-Ga bond, suggesting the generation of an in situ formed ambiphilic phosphinogallyl ligand. This is of significance for understanding the interaction between metal-halogen bonds and metal-small molecule bonds.
Article
Chemistry, Inorganic & Nuclear
Sevil Sener, Nursel Acar, Fatih Dumludag
Summary: The synthesis, characterization, spectroscopic and bonding features of a new Co (II) phthalocyanine compound containing two thiocarbohydrazone groups were explained. The compound showed semiconductor properties and potential as a temperature sensor.
Article
Chemistry, Inorganic & Nuclear
Ledja B. O. Davi, Aryanna S. P. N. Costa, Mariana S. Silva, Adriana S. Ribeiro, Cintya D. A. E. S. Barbosa, Julio C. S. Da Silva, Dimas J. P. Lima, Daniela S. Anunciacao
Summary: In this study, a dansyl derivative sensor called o-PDDS was prepared and used for the detection of Al3+ ions in water. The o-PDDS sensor exhibited high sensitivity and linear response towards Al3+ ions. Experimental and computational studies confirmed a 1:1 stoichiometry ratio between o-PDDS and Al3+ ions. Real sample analysis demonstrated the selectivity and detection performance of the sensor, indicating its potential for field use.