Article
Chemistry, Physical
C. Gomez-Polo, S. Larumbe, A. Gil, D. Munoz, L. Rodriguez Fernandez, L. Fernandez Barquin, A. Garcia-Prieto, M. L. Fdez-Gubieda, A. Muela
Summary: The study investigates the effects of Cr and N doping on the properties of TiO2 anatase nanoparticles, including adsorption capacity, photocatalytic performance, and antibacterial response. Doping with Cr and Cr/N enhances adsorption capacity and photocatalytic performance, with Cr-TiO2 nanoparticles exhibiting antibacterial activity under visible light. The differences in electrostatic charge and nanoparticle dispersion are suggested as the main reasons for the varied antibacterial response among the doped nanoparticles.
SURFACES AND INTERFACES
(2021)
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
Engineering, Electrical & Electronic
K. Santhi, S. Ponnusamy, S. Harish, M. Navaneethan
Summary: The study investigated the photocatalytic degradation mechanism of methylene blue dye using Zn-doped TiO2 nanoparticles under visible light irradiation. Results showed that doping Zn into TiO2 nanoparticles enhanced the photocatalytic degradation performance, indicating promising potential for practical applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Ceramics
Charitha Thambiliyagodage, Shanitha Mirihana
Summary: This study successfully synthesized Fe and Cu co-doped TiO2 nanoparticles and investigated their photocatalytic activity. Doping with Fe and Cu can enhance the visible light sensitivity of TiO2, but increasing dopant concentration leads to a decrease in photocatalytic activity.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Jing Wang, Zhinuo Wang, Dongyang Zhao, Yao Liang, Hualin Wang, Nan Wang, Weiwei Jiang, Shimin Liu, Chaoqian Liu, Wanyu Ding, Zhihua Zhang
Summary: Based on the results, co-doping of Sn/Fe in TiO2 nanoparticles inhibited the crystallization transformation and decreased the energy band gap. The abnormal grain growth of the particles was observed due to the influence of calcination temperature and dopant. The co-doped nanoparticles with 0.6 at.% Sn/0.2 at.% Fe and 1.0 at.% Sn/1.0 at.% Fe showed better photocatalytic performance under visible light irradiation, while the nanoparticles co-doped with 0.2 at.% Sn and 0.6 at.% Fe and calcined at 650 degrees C exhibited the highest photocatalytic performance under UV light irradiation.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Sridhar Parida, Jyotirmayee Nanda, Biswaprakash Sarangi
Summary: This work investigates the structural, optical, and magnetic properties of sol-gel synthesized Eu-Mg doped BiFeO3 nanoparticles. Mg2+ doping induces a structural phase transition and affects the shape and size of the nanoparticles. The doped samples exhibit a lower optical energy band gap and enhanced magnetization. These nanomaterials may also have potential applications as photocatalysts.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Kailin Wang, Songyu Yang, Yan Wu
Summary: This paper presents the use of Fe-Co3O4 and Pt dual cocatalysts to enhance photocatalytic water splitting for hydrogen production. The dual cocatalysts not only improve the migration rate of photo-generated electrons and holes, but also enhance light absorption capacity. The interfacial electric field built from the p-n heterojunction of Fe-Co3O4 /g-C3N4 promotes the flow of photo-generated electrons to the holes, inhibiting carrier recombination.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Darshana T. Bhatti, Sachin P. Parikh, Manan Shah
Summary: This research compared the performance of Ag-Fe co-doped TiO2 nanophotocatalyst in degrading diflouro triazole acetophenone under solar and UV radiations. The study found that Ag-Fe CT 30 photocatalyst showed the highest COD removal efficiency and could be reused effectively. The optimal conditions for DTA removal were determined to be pH 5, photocatalyst dose of 3 g/L, and Ti to Ag mole ratio of 30.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
M. Jothibas, M. Sankar, A. Muthuvel, Soorya Srinivasan, M. Elayaraja
Summary: In this study, pure and Sn-doped CdS nanoparticles were synthesized using the sol-gel method, and their structural, optical, morphological, and functional group properties were investigated. The results showed that Sn doping can alter the optical characteristics and lattice structure of CdS nanoparticles, and also enhance their photocatalytic activity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Mekonnen Tefera Kebede, Sheela Devi, Babita Tripathi, Sunil Chauhan, Venus Dillu
Summary: In this study, Bi1-xCexFe1-xNixO3 (x = 0%, 4%, 6% and 8%) samples were synthesized using sol-gel method. The influence of Ce-Ni co-doping on the structural, vibrational, magnetic, optical and photocatalytic properties of the samples was systematically investigated. The results showed that Ce-Ni co-doping improved the ferromagnetic and photocatalytic properties of BiFeO3, and also enhanced the crystallinity of the samples.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Environmental Sciences
Rasha A. El-Kholy, Heba Isawi, Ehab Zaghlool, Elsayed A. Soliman, Mostafa M. H. Khalil, Moustafa M. Said, Abd-elhameed M. El-Aassar
Summary: This study focuses on the photocatalytic degradation of methylene blue (MB) on erbium ion (Er3+) doped TiO2 under visible light. The synthesized (Er3+/TiO2) nanocomposite was characterized and different parameters were studied for the photoreactor (PR) and the synthesized catalyst. The results showed that under UV light, pure TiO2 degraded by 85%, while under visible light, (Er3+/TiO2) achieved a maximum degradation of 77% at pH 5 and improved efficiency at a low motor speed of 40 rpm. However, the degradation efficiency decreased to 70% with an increase in MB concentration.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Polymer Science
Nouhad Rouabah, Boubekeur Boudine, Roshan Nazir, Mourad Zaabat, Ali S. Alqahtani, Mohammed S. Alqahtani, Rabbani Syed
Summary: This work demonstrates a sol-gel method for synthesizing silver-doped magnesium oxide nanocomposites incorporated in PVC matrix, which were then deposited on glass substrates using spin coating. Characterization of the Ag:MgO/PVC films revealed the formation of nanoparticles with varying particle sizes and changes in band gap energy with increasing Ag:MgO concentration. The nanocomposite films exhibited promising photocatalytic activity for methylene blue degradation under UV light, with a proposed reaction mechanism and kinetic studies indicating a rate constant of 6.25 x 10(-3) min(-1) for 10% Ag:MgO/PVC nanocomposite thin films.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Engineering, Environmental
Periyakaruppan Karuppasamy, Nagoorkani Ramzan Nilofar Nisha, Arivalagan Pugazhendhi, Sabariswaran Kandasamy, Sakthivel Pitchaimuthu
Summary: The study focused on preparing semiconducting materials like TiO2 and transition metal-doped TiO2 using a sol-gel method and characterizing them through various analyses. Among them, Zn-doped TiO2 showed the best photocatalytic efficiency in decolouring Methylene blue dye under visible light irradiation. Results indicated that Zn-doped TiO2 had a lower band gap, leading to enhanced dye degradation compared to other catalysts. UV-vis spectra and the decolouration percentage of Methylene blue showed the superior photocatalytic activity of Zn-doped TiO2.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Sipei Zhang, Ying Xu, Wen Zhang, Peng Cao
Summary: Cu and Y co-doped TiO2 nanoparticles were prepared using an acid-catalytic sol-gel process, resulting in a single anatase phase with reduced crystallite size. SEM observations showed uniform nanospheres being synthesized under the proposed conditions. XPS results demonstrated the presence of Cu+ and Y3+ ions. The photoactivity of the co-doped TiO2 was improved due to effective separation of electron-hole pairs, increased formation of active radicals, and increased surface area.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Ceramics
Fatma Aydin Unal, Murat Unal, Tugce Ataser, Sueleyman Ozcelik
Summary: In this paper, the synthesis of undoped ZnO and 5 wt % Gd/K co-doped ZnO compounds is introduced to improve photocatalytic activity. The samples are studied using various techniques and the photocatalytic activity is tested. The results show that 5% Gd/K co-doped ZnO exhibits higher photocatalytic activity than undoped ZnO.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Physical
M. D. Bhuyan, Subrata Das, M. A. Basith
Summary: Lead-free double perovskite Gd2FeCrO6 nanoparticles were synthesized and investigated for their structural, magnetic, and optical properties, showing excellent stability, magnetic behavior, and semiconductor nature with a potential for various solar energy applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Subrata Das, Sagar Dutta, Angkita Mistry Tama, M. A. Basith
Summary: The nanostructured LaFeO3-MoS2 photocatalyst shows excellent performance in photodegradation of dyes and photocatalytic hydrogen generation, exhibiting high photocatalytic efficiency and activity while eliminating the possibility of dye-sensitization effect. The photocatalyst also demonstrates superior photocatalytic activity in decomposing colorless probe pollutants and achieving solar hydrogen evolution via water splitting. Considering band structures and contribution of reactive species, a direct Z-scheme photocatalytic mechanism is proposed to rationalize the superior photocatalytic behavior of LaFeO3-MoS2 nanocomposite.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Subrata Das, M. D. I. Bhuyan, M. A. Basith
Summary: In this study, Gd2FeCrO6 (GFCO) double perovskite was synthesized and its structural and optical properties were investigated. The results suggest that the U-eff value should be limited within the range of 1-5 eV for accurate calculations. When U-eff is set at 3 eV, the theoretically calculated optical band gap closely matched the experimental value.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Fahmida Sharmin, Dayal Chandra Roy, M. A. Basith
Summary: Utilizing a hydrothermal approach, Fe/MgO-rGO nanocomposites were successfully synthesized and showed high photocatalytic efficiency after thermal treatment in an inert atmosphere, demonstrating effective degradation of toxic dyes and hydrogen generation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Manifa Noor, Fahmida Sharmin, M. A. Al Mamun, Sajjad Hasan, M. A. Hakim, M. A. Basith
Summary: The development of metal oxide photocatalysts with improved dye degradation efficiency under natural sunlight is in increasing demand. In this study, Gd and Y co-doped BiVO4 materials were synthesized using a surfactant-free hydrothermal technique. Structural and optical characterizations confirmed the superior performance of the co-doped materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
M. D. Bhuyan, Rana Hossain, Ferdous Ara, M. A. Basith
Summary: Predictions using first-principles were made on the structural stability, magnetic behavior, and electronic structure of the B-site ordered double perovskite Nd2CrFeO6. The compound exhibits ferrimagnetic properties, a lower band gap, and is considered a potential material for spintronic and visible-light driven energy applications.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Shahran Ahmed, A. K. M. Sarwar Hossain Faysal, M. N. Khan, M. A. Basith, Muhammad Shahriar Bashar, H. N. Das, Tarique Hasan, Imtiaz Ahmed
Summary: This study synthesized various materials using solid state reaction technique and investigated their structural, electrical, and magnetic properties. Zr and Ni doping significantly affected the grain size and chemical composition of the samples, while unique characteristics of the samples were discovered through phenomena such as forbidden first order Raman scattering.
RESULTS IN PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Md. Sarowar Hossain, Sankar Kumar Das, Md. Moniruzzaman, M. A. Hakim, M. A. Basith
Summary: This study reports the structural, dielectric, electronic, and transport properties of Mo and W doped BaTiO3 ceramic materials. The relationship between dielectric constants and relaxation behavior, as well as the effect of temperature on phase transition, were observed. The conduction mechanisms and PTCR effects in different samples were investigated, with the BTMO sample showing the highest PTCR peak and potential for temperature-controlled device applications.
RESULTS IN PHYSICS
(2021)
Article
Chemistry, Physical
Fahmida Sharmin, M. A. Basith
Summary: This study presents the synthesis of an efficient photocatalyst BGFO and its application in the degradation of industrial effluents under solar irradiation. The BGFO demonstrated excellent activity in the degradation of dyes and pharmaceutical pollutants, with high degradation rates observed within a short period of solar irradiation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Yasir Fatha Abed, Susmita Das, Md Shahjahan Ali, Zuel Rana, M. A. Basith
Summary: Dysprosium chromite nanoparticles and dysprosium chromite-reduced graphene oxide nanocomposite were successfully synthesized using a hydrothermal technique. The DyCrO3-rGO photocatalyst showed higher efficiency in degrading rhodamine B dye and generating hydrogen via water splitting, compared to DyCrO3 and commercial titania nanoparticles. This research provides valuable insights for synthesizing rGO-based nanocomposite heterostructures for solar energy-driven applications.
Article
Nanoscience & Nanotechnology
Tarique Hasan, Arnab Saha, M. N. I. Khan, R. Rashid, M. A. Basith, Muhammad Shahriar Bashar, Imtiaz Ahmed
Summary: Here, we report on the structural, vibrational phonon, electrical, and magnetic properties of undoped strontium titanate SrTiO3, Ce doped Sr1-xCexTiO3, and (Ce, Fe) co-doped Sr1-xCexTi1-yFeyO3 samples synthesized through solid state reaction route. The findings show that the introduction of Ce and Fe dopants leads to a reduction in the grain size of SrTiO3. In addition, Ce doping may induce ferroelectric order, while the (Ce, Fe) co-doped sample exhibits strong ferromagnetic properties.
Article
Chemistry, Multidisciplinary
Fahmida Sharmin, M. A. Basith
Summary: This study developed a low temperature one-step hydrothermal technique to fabricate sillenite bismuth ferrite with promising photocatalytic activity. The reaction temperature had an effect on the structure and morphology of the material. Among the samples, S-BFO(160) exhibited the highest photocatalytic performance and the lowest band gap.
Article
Materials Science, Multidisciplinary
Sajjad Hasan, Akter Hossain Reaz, Subrata Das, Chanchal Kumar Roy, M. A. Basith
Summary: In this study, MoS2 incorporated CuCo2S4 nanocomposites were successfully synthesized and their structural, morphological, elemental and chemical properties were extensively investigated. The incorporation of MoS2 significantly improves the charge storage capacity, conductivity and stability of CuCo2S4. Assembling the nanocomposite with an activated carbon electrode results in an asymmetric supercapacitor with a large stable working potential window and excellent long-term cyclic stability.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
Md Shahjahan Ali, Subrata Das, Yasir Fatha Abed, M. A. Basith
Summary: Lead-free metal halide perovskites, specifically cubic phase cesium tin chloride (CsSnCl3) nanocrystals, were successfully synthesized with improved surface morphology using a rapid hot-injection technique. The high crystalline quality of these nanocrystals was confirmed by imaging with high-resolution transmission electron microscopy. Spectroscopic analysis identified organic ligands bound to the surface and determined the direct band gap of the nanocrystals to be approximately 2.98 eV. Experimental results showed potential photocatalytic capabilities, with theoretical calculations providing an accurate estimation of the optical band gap and supporting the high photocatalytic efficiency of the CsSnCl3 nanocrystals.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Proceedings Paper
Materials Science, Multidisciplinary
Mohammed Abdul Basith, N. Chandrashekar Reddy, Sudhakar Uppalapati, S. P. Jani
Summary: The bumper of a car is crucial for reducing impact energy and minimizing damage to the vehicle and passengers, thus improving safety. Research has been conducted on different materials for bumpers to determine the most suitable ones for manufacturing.
MATERIALS TODAY-PROCEEDINGS
(2021)