Article
Chemistry, Physical
Xiaolei Zhang, Qilu Yao, Haochong Wu, Yuanlan Zhou, Meihua Zhu, Zhang-Hui Lu
Summary: Efficient, durable, and economical catalysts for hydrogen production from hydrous hydrazine are crucial yet challenging. In this study, defect-rich Ni-Cr(OH)3/C-TiO2 catalyst with oxygen defects induced small-sized and electron-rich Ni nanoparticles exhibited remarkable catalytic efficiency and durability, providing new insights for the development of low-cost and efficient heterogeneous hydrogen production catalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Analytical
Mounesh, K. R. Venugopal Reddy
Summary: The CoTEIndCAPc/MWCNTs/GC electrode showed excellent electrocatalytic properties for detecting Cd2+ and Pb2+ with high sensitivity and diffusion-controlled electro-oxidation of the analytes. The fabricated sensors are cost-effective, easy to prepare, and suitable for real sample analysis.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Nada F. Atta, Ahmed Galal, Asmaa R. M. El-Gohary
Summary: The study presents a one pot preparation method for Au-doped Sr-Pd perovskite carbon nanotubes composite and its application for electrochemical sensing of hydrazine hydrate. The sensor shows remarkable performance with significantly improved current-signal responses for HH oxidation and stable response in wastewater samples, indicating its potential for practical applications in water quality monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Weiwei Guo, Xinran Li, Xue Gao, Wen Zeng, Xingmin Wang
Summary: In this study, pure CoSn(OH)6 and Fe-doped CoSn(OH)6 nanocubes were synthesized by hydrothermal method for gas sensing applications. Extensive characterizations, such as XRD, SEM, and XPS, were performed to investigate the crystal structure, morphology, and chemical composition of the samples. Compared to pure CoSn(OH)6, the gas sensing performance of 5Fe-CoSn(OH)6 towards N-butyl alcohol exhibited significant improvement, showing high gas response of 60.309 at a relatively low operating temperature of 200 degrees C. Additionally, the 5Fe-CoSn(OH)6 based sensor showed excellent stability, selectivity, and humidity resistance to N-butyl alcohol. The enhanced gas sensing properties of 5Fe-CoSn(OH)6 can be attributed to its large specific surface area, narrow band gap, sufficient oxygen vacancies, and efficient separation of electron-hole pairs.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Physical
Sivakumar Musuvadhi Babulal, Krishnan Venkatesh, Shen-Ming Chen, Sayee Kannan Ramaraj, Chun-Chen Yang
Summary: A new electrochemical sensor based on a multidirectional porous carbon nanoparticles supported Fe doped NiO nanocomposite has been developed for the detection of acetaminophen. The sensor demonstrated excellent sensitivity, trace level detection capability, and outstanding selectivity and reproducibility, making it a promising candidate for acetaminophen detection in urine and pharmaceutical samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Yapeng Li, Pengfei Zhang, Jianhua Zhang, Hui Zhang, Taotao Ai, Zhongguo Zhao, Yu Liu, Zhuolin Pu
Summary: In this paper, Fe-TiO2/carbon fiber composite materials were synthesized by depositing Fe-TiO2 on the surface of carbon fiber through hydrothermal method. XRD and SEM analysis revealed that the grown TiO2 exhibited a rutile phase structure with needle-like morphology perpendicular to carbon fiber. XPS analysis indicated that the adsorbed oxygen on Fe-TiO2 significantly increased with the increasing Fe ion doping concentration, which could provide more reactive oxygen species for photocatalytic process. Ultimately, the catalytic performance of Fe-TiO2 composite materials was improved.
Article
Engineering, Environmental
Xuanyi Wang, Wenhao Zhang, Qingping Yu, Xiaobin Liu, Qiaochu Liang, Xiangmin Meng, Xinping Wang, Lei Wang
Summary: In this study, a highly efficient and durable bifunctional catalyst FeCoNiP@NC was synthesized for hydrazine oxidation reaction (HzOR) and hydrogen evolution reaction (HER). The catalyst showed low voltage, high stability, and energy-saving hydrogen production in alkaline seawater.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Emerson Santos, Ariadne C. Catto, Allan F. Peterline, Waldir Avansi Jr
Summary: Semiconducting metal oxide nanostructures have attracted much attention for their wide-ranging applications, such as photocatalytic activity and gas-sensing performance. The presence of metal ions was found to affect the structural and electronic properties of the samples, with an increase in metal ion content leading to morphological evolution and size reduction of the nanostructures. The doping of tungsten and niobium induced changes in the surface characteristics of the nanostructures, favoring the photodegradation of cationic dyes.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Rahman Hallaj, Mahsa Mottaghi, Zhaleh Ghafari, Fahimeh Jalali
Summary: Here, an ultrasensitive multilateral electrochemical determination of arsenic (III) was achieved using Fe3O4@Cu-BTC nanoparticles grafted on a glassy carbon electrode coupled with a magnet. The surface-modified glassy carbon electrode exhibited excellent catalytic activity and improved stability and electrical connection. Multiple electrochemical methods were employed to check the functionality of the proposed sensing procedure. The constructed sensing platform showed high sensitivity and selectivity for the detection of As(III) in a wide linear range.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Analytical
Elhameh Saeb, Karim Asadpour-Zeynali
Summary: This paper presents a novel electrochemical sensor utilizing metal organic frameworks and metal nanoparticles for the rapid detection and high sensitivity determination of Tinidazole. The sensor showed good repeatability, reproducibility, and stability in the detection of Tinidazole in tablets and biological samples using differential pulse voltammetry technique.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Physical
Wenda Wang, Zhenting Zhao, Qian Lei, Wenlei Zhang, Pengwei Li, Wendong Zhang, Serge Zhuiykov, Jie Hu
Summary: A highly sensitive hierarchical electrochemical sensing nanostructure was successfully synthesized by enhancing material structure and catalytic effect, showing excellent electrochemical performance and great potential for applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Weiran Zheng, Yong Li, Lawrence Yoon Suk Lee
Summary: Research has shown that low-toxic bismuth (Bi)-based nanomaterials can be used as non-toxic or low-toxic electrocatalysts for non-enzymatic electrochemical glucose sensing. Surfactant-free Bi nanoparticles (NPs) and transition metal (Ni and Co)-doped Bi NPs obtained through laser-ablation method demonstrated competitive performance and high selectivity towards glucose sensing.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Environmental Sciences
Manjiri A. Mahadadalkar, NaHyun Park, Mohammad Yusuf, Saravanan Nagappan, Muthuchamy Nallal, Kang Hyun Park
Summary: Water pollution caused by industrial wastewater is a critical environmental problem. Synthetic dyes used in various industries have complex composition, high toxicity, and low biodegradability, causing negative impacts on ecosystems. To address this issue, TiO2 fibers photocatalyst doped with Fe was synthesized using sol-gel and electrospinning techniques for the degradation of dyes. The fabricated fibers showed excellent photocatalytic degradation activity, with 99% degradation of rhodamine B in 120 minutes. The fibers also demonstrated good photocatalytic activity even after 5 cycles of reuse.
Article
Chemistry, Multidisciplinary
Yumatorn Mingmongkol, Dang Trung Tri Trinh, Patcharaporn Phuinthiang, Duangdao Channei, Khakhanang Ratananikom, Auppatham Nakaruk, Wilawan Khanitchaidecha
Summary: In this study, metal-doped titanium dioxide was synthesized to improve photocatalytic degradation and antimicrobial activities. The copper-doped TiO2 nanoparticles showed well-maintained anatase phase and a decreased band gap. The 0.1 wt.% Cu-doped TiO2 exhibited enhanced photocatalytic degradation and antibacterial ability, while the high Cu doping levels had negative impacts on surface charge and charge transfer.
Article
Chemistry, Analytical
Jahir Ahmed, M. Faisal, Mohammed Jalalah, S. A. Alsareii, Farid A. Harraz
Summary: A novel electrochemical sensor for efficient detection of hydroquinone was proposed in this study, demonstrating high sensitivity and ultra-low detection limit. The sensor showed promising results in both laboratory testing and real sample analysis, with exceptional reproducibility, repeatability, and stability of the sensor assembly.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Environmental
Yajvinder Saharan, Joginder Singh, Rohit Goyat, Ahmad Umar, Sheikh Akbar, Ahmed A. Ibrahim, Sotirios Baskoutas
Summary: In this study, nine new supramolecular organo-oil gelators were synthesized and characterized. The oil uptake was analyzed using Langmuir and Freundlich isotherm models, and a mechanism for gelation was proposed. Among the nine gelators, ditetradecyl (TDI 14: DMI14: HMI 14) gelator in the ratio of 1:2:1 showed the highest oil uptake. This study confirmed that the removal of oil from oil-contaminated soil/water mixture using organo-oil gelator is a simple and novel technique.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Mohammed Jalalah, Ananta Sasmal, Arpan Kumar Nayak, Farid A. Harraz
Summary: In this study, a Bi2WO6 nanocomposite was successfully synthesized through a single-step redox reaction under hydrothermal conditions without the use of any external acidic medium. The synthesized material exhibited the highest specific capacitance in a neutral electrolyte. The fabricated symmetric supercapacitor device using the synthesized Bi2WO6 nanocomposite showed a high energy density, power density, and excellent durability.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Polymer Science
Ali Afzal, Mohammed Jalalah, Abid Noor, Zubair Khaliq, Muhammad Bilal Qadir, Rashid Masood, Ahsan Nazir, Sheraz Ahmad, Faheem Ahmad, Muhammad Irfan, Munazza Afzal, Mohd Faisal, Saeed A. Alsareii, Farid A. Harraz
Summary: Nowadays, synthetic polymers with special properties such as biodegradability, biocompatibility, hydrophilicity, and non-toxicity are widely used in medical applications. This study aims to develop and characterize PVA/PCL fibers containing a model drug for controlled drug release in wound dressing. The wet spinning technique was used to produce PVA/PCL fibers from a dope solution, and the fibers were tested for various properties related to wound healing. The results showed that the developed PVA/PCL fibers have respectable tensile properties, adequate liquid absorption, swelling behavior, degradation, and antimicrobial activity, as well as a controlled drug release profile.
Article
Chemistry, Physical
Vaibhav Gupta, Rajesh K. Yadav, Ahmad Umar, Ahmed A. Ibrahim, Satyam Singh, Rehana Shahin, Ravindra K. Shukla, Dhanesh Tiwary, Dilip Kumar Dwivedi, Alok Kumar Singh, Atresh Kumar Singh, Sotirios Baskoutas
Summary: This manuscript highlights the use of structural assembling to facilitate the generation of solar chemicals and the synthesis of fine chemicals under solar light. It introduces a metal-free activated carbon cloth (ACC)-templated photocatalyst as an alternative technique to overcome the drawbacks of metal-based photocatalysts. The synthesized EC-R@ACC photocatalyst exhibits high efficiency in the photocatalytic reduction of 4-nitro benzyl alcohol and regeneration of reduced forms of NADH cofactor.
Editorial Material
Chemistry, Multidisciplinary
Sotirios Baskoutas
Article
Chemistry, Multidisciplinary
Misbah Batool, Hasan B. Albargi, Adnan Ahmad, Zahid Sarwar, Zubair Khaliq, Muhammad Bilal Qadir, Salman Noshear Arshad, Rizwan Tahir, Sultan Ali, Mohammed Jalalah, Muhammad Irfan, Farid A. Harraz
Summary: A novel bubbled-structured silica nanoparticle (SiO2) decorated electrospun polyurethane (PU) nanofibrous membrane (SiO2@PU-NFs) was prepared. The membrane exhibited a nanoscale hierarchical surface roughness and superhydrophobicity, along with excellent mechanical properties and breathability. It also showed high water/oil separation efficiency and maintained its superhydrophobic quality under severe conditions. This composite structure could be used in various functional applications.
Article
Chemistry, Multidisciplinary
Mohamed El-Yadri, Jawad El Hamdaoui, Noreddine Aghoutane, Laura M. Perez, Sotirios Baskoutas, David Laroze, Pablo Diaz, El Mustapha Feddi
Summary: This study investigates the impact of quantum size and an external magnetic field on the optoelectronic properties of a cylindrical AlxGa1-xAs/GaAs-based core/shell nanowire. The Hamiltonian of an interacting electron-donor impurity system was described using the one-band effective mass model and two numerical methods were employed to calculate the ground state energies: the variational and finite element methods. The system's cylindrical symmetry revealed transcendental equations due to the finite confinement barrier between the core and the shell, leading to the concept of the threshold core radius. The results demonstrate that the optoelectronic properties strongly rely on core/shell sizes and the external magnetic field strength, with the electron's maximum probability of occurrence depending on the threshold core radius value. This threshold radius separates two regions with different physical behaviors, while the applied magnetic field acts as an additional confinement.
Article
Crystallography
Samer H. H. Zyoud, Wissal Jilani, Abdelfatteh Bouzidi, Thekrayat H. H. AlAbdulaal, Farid A. A. Harraz, Mohammad S. S. Al-Assiri, Ibrahim S. S. Yahia, Heba Y. Y. Zahran, Medhat A. A. Ibrahim, Mohamed Sh. Abdel-wahab
Summary: The new proton-conducting composite electrolyte films (PCCEFs) consisting of polyvinyl alcohol (PVA) with varying ammonium fluoride salt concentrations were created using an expanded liquid casting process. The X-ray diffraction (XRD) study confirms the composite electrolyte films (CEFs) formation. The suggested composites evaluated successful CUT-OFF laser filters and attenuation, as well as limiting laser power systems.
Review
Biochemistry & Molecular Biology
Chahat Sharma, Pooja Sharma, Amit Kumar, Yashika Walia, Raman Kumar, Ahmad Umar, Ahmed A. Ibrahim, Mohd. Sayeed Akhtar, Abdulrab Ahmed M. Alkhanjaf, Sotirios Baskoutas
Summary: The excessive use of chemical substances disrupts beneficial microflora in the soil, posing a threat to human and animal health. Pesticides, commonly used in modern agriculture, accumulate in the soil and can negatively impact the overall ecosystem. However, certain microorganisms, such as Diazotrophs, have the capability to degrade pesticides, contributing to a healthier environment.
CHEMISTRY AND ECOLOGY
(2023)
Article
Environmental Sciences
Ahmad Umar, Rajesh Kumar, Pravin S. More, Ahmed A. Ibrahim, Hassan Algadi, Mohsen A. Alhamami, Sotirios Baskoutas, Sheikh Akbar
Summary: A reduced graphene oxide nanocomposite was synthesized and used to prepare PEG-rGO supramolecular assemblies. Gas-dependent electrical properties of these supramolecular assemblies were investigated, and they exhibited excellent sensitivity and selectivity towards benzene, methanol, and H2 gas.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Manjot Kaur, Shafali Singh, Surinder Kumar Mehta, Sushil Kumar Kansal, Ahmad Umar, Ahmed A. Ibrahim, Sotirios Baskoutas
Summary: Here, the synthesis and characterization of g-C3N4/CeO2 heterostructure is reported. The heterostructure showed strong binding affinity towards heavy transition metal ions and demonstrated excellent selectivity. It also exhibited photocatalytic activity for the degradation of tetracycline under visible light. This work provides an effective strategy for the preparation of fluorescent photocatalytic materials for the detection of heavy metal ions and degradation of pollutants.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
M. Faisal, Jari S. Algethami, Ali Q. Alorabi, Jahir Ahmed, Farid A. Harraz
Summary: In this study, a highly efficient photocatalyst based on SrTiO3 nanostructures, polypyrrole doped carbon black, and gold nanoparticles was successfully fabricated for the treatment of water pollution. The modified Au@PPyC/SrTiO3 showed excellent performance in removing insecticides and dyes within a short period of time.
JOURNAL OF SAUDI CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Eunbi Kim, Ahmad Umar, Sadia Ameen, Rajesh Kumar, Ahmed A. Ibrahim, Mohsen A. M. Alhamami, M. S. Akhtar, Sotirios Baskoutas
Summary: In this study, ZIF-8/GO and ZIF-8/rGO composites were synthesized and characterized for electrochemical sensing of Cu2+ ions. The composites were prepared by dispersing GO or rGO in a solution of Zn(NO3)2·6H2O and 2-methylimidazole in anhydrous methanol. Various techniques were used to investigate the structural, morphological, and chemical properties of the materials. The ZIF-8/GO composite-based Cu2+ ion sensor exhibited superior sensitivity and LOD compared to ZIF-8/rGO and ZIF-8 alone, demonstrating its potential in electrochemical sensing applications.
SURFACES AND INTERFACES
(2023)
Review
Multidisciplinary Sciences
Sumit Malik, Joginder Singh, Rohit Goyat, Yajvinder Saharan, Vivek Chaudhry, Ahmad Umar, Ahmed A. Ibrahim, Sheikh Akbar, Sadia Ameen, Sotirios Baskoutas
Summary: This review provides an overview of the development of biosensors made of nanoparticles (NPs) and their applications in nanotechnology. The combination of NPs and electrochemical techniques has led to the emergence of biosensors with high sensitivity and decomposition power. Various types of NPs, such as noble metal NPs and metal oxide NPs, nanowires, nanorods, carbon nanotubes, quantum dots, and dendrimers, have been used in biosensors.
Article
Materials Science, Multidisciplinary
Bihai Bai, Guojun Lu, Chunyan Cao, Ahmad Umar, Ahmed A. Ibrahim, Nihui Huang, Zijun Chen, Hongwei Zhao, Wang Yao, Haichang Zhong, Yuechan Li, An Xie
Summary: The Eu3+-doped Lu2(WO4)3 phosphors were prepared via a solid-state reaction approach and extensively characterized. The study found that under specific conditions, the phosphors exhibited thermal enhancing luminescence, which is important for mitigating the effects of thermal quenching.
MATERIALS RESEARCH BULLETIN
(2024)
