Article
Chemistry, Physical
Caroline Ponraj, P. Santhosh Kumar, Sumit Sarkar, C. Krishnamoorthi, N. Manikandan, G. Vinitha, Joseph Daniel
Summary: Photocatalysis is a research hot topic due to its wide applications in environmental remediation and renewable energy. This study reports the synthesis and activity of magnetic BiFe1-xCoxO3 (x = 0, 0.025, 0.05, 0.075 & 0.10) photocatalysts under visible light irradiation. The results show that increasing dopant concentration leads to decreasing crystallite size, decreasing bandgap, increasing magnetic behavior, and enhanced photocatalytic activity.
SURFACES AND INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Radhalayam Dhanalakshmi, T. V. M. Sreekanth, Juliano Denardin, P. Rosaiah, Sambasivam Sangaraju, Kisoo Yoo, Jonghoon Kim
Summary: A series of Nd-BFO/NFO nanocomposites were prepared and used to achieve high photocatalytic response by coupling multiple energy fields including ultrasonic and magnetic field (MF). The coupled fields displayed improved catalytic activity and almost complete degradation of pollutants was achieved.
Article
Chemistry, Applied
Jafar Hussain Shah, Anum Shahid Malik, Ahmed Mahmoud Idris, Saadia Rasheed, Hongxian Han, Can Li
Summary: In this study, particulate BFO and Mn-doped BiFeO3 were synthesized by the sol-gel method, demonstrating that Mn doping significantly enhances the oxygen evolution reaction (OER) activity under visible light irradiation. The bandgap of Mn-doped BFO could be reduced by varying the Mn doping amount, leading to improved absorption of visible light and decreased activation energy for water oxidation. Density functional theory (DFT) calculations suggested that surface Fe species are the active sites for water oxidation, with Mn doping leading to the lowest over-potential measured in this study. The synergistic effect of bandgap narrowing in Mn-doped BFO increases the photocatalytic water oxidation activity by inhibiting charge recombination and reducing activation energy.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Environmental Sciences
Ankita Ankita, Surjeet Chahal, Saurabh Singh, Sandeep Kumar, Parmod Kumar
Summary: In this study, pure and europium-doped cerium oxide nanoparticles were used for efficient dye removal through photocatalytic approach. The presence of europium doping increased lattice defects, resulting in enhanced dye degradation. This research contributes to the development of advanced materials for sustainable wastewater treatment and spintronics.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Petronela Pascariu, Corneliu Cojocaru, Petrisor Samoila, Cosmin Romanitan
Summary: Nd-doped ZnO nanostructures with varying amounts of Nd were prepared using the electrospinning-calcination method. The X-ray diffraction measurements confirmed the wurtzite structure and absence of impurities. Nd doping affected the crystallite size and lattice strain, as evidenced by Williamson-Hall plots. The ZnO-based nanostructures were effective photocatalysts for the degradation of methylene blue and ciprofloxacin under visible light, with the reaction rate constant increasing with mean crystallite size. The optimal catalyst showed high removal efficiency and stability in multiple catalytic cycles.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Khiat Abdelmadjid, Felicia Gheorghiu, Boughelout Abderrahmane
Summary: In this study, Bi1-xBaxFeO3 (BBFO) thin films were prepared by a combined sol-gel and spin-coating method, and the influence of Ba substitutions on the structural, microstructural, optical properties, and photocatalytic activity of the films was investigated.
Article
Materials Science, Multidisciplinary
Wael Ben Taazayet, Ikbel Mallek Zouari, Pascale Gemeiner, Brahim Dkhil, Najeh Thabet Mliki
Summary: Hydrothermally synthesized Zn-doped BiFeO3 materials exhibit increased crystal-field modification and enhanced photocatalytic activity, making them promising candidates for various applications.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Gaochao Zhao, Chengbing Pan, Wei Dong, Peng Tong, Jie Yang, Xuebin Zhu, Lihua Yin, Wenhai Song, Yuping Sun
Summary: By co-doping with Cr-Mn, BFC-BTM ceramics achieve a gradual structural transformation from rhombohedral to pseudo-cubic phase, establishing morphotropic phase boundaries. Improved piezoelectric and magnetoelectric properties are observed in samples near the MPB.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Chuang Tian, Qingrong Yao, Zhaofei Tong, Guanghui Rao, Jianqiu Deng, Zhongmin Wang, Jiang Wang, Huaiying Zhou, Jingtai Zhao
Summary: This study investigated the influence of Nd substitution on the microstructure and magnetic characteristics of Bi1-xNdxFeO3 nanopowders, and found that an appropriate amount of Nd doping can significantly enhance the microwave absorption performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Lintong Zhang, Xiaojie Li, Jianguo Chen, Dengren Jin, Jinrong Cheng
Summary: In this study, 50 nm BiFeO3 particles were prepared using the sol-gel method and their photocatalytic activity was enhanced through corona poling treatment. XRD and Raman analysis revealed structural changes in the polarized BiFeO3 particles, which resulted in a 5.1-fold increase in the degradation efficiency of methyl orange dye.
CERAMICS INTERNATIONAL
(2022)
Article
Polymer Science
Farid Orudzhev, Dinara Sobola, Shikhgasan Ramazanov, Klara Castkova, Nikola Papez, Daud A. Selimov, Magomed Abdurakhmanov, Abdulatip Shuaibov, Alina Rabadanova, Rashid Gulakhmedov, Vladimir Holcman
Summary: The synthesis of hybrid polymer-inorganic nanocomposite fiber membranes based on PVDF and BFO can effectively solve the problem of decomposing organic dyes with high efficiency by combining the advantages of photoactive piezoelectric nanomaterials and ferroelectric polymers, collecting mechanical vibrations and light energy.
Article
Materials Science, Ceramics
Xiaojie Li, Fanhao Jia, Jianguo Chen, Dengren Jin, Wei Ren, Jinrong Cheng
Summary: In this study, bare BiFeO3 and tourmaline modified BFO composites were synthesized, and it was found that the modified BFO showed enhanced degradation efficiency for methyl orange dyes under visible light irradiation.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Wael Ben Taazayet, Ikbel Mallek Zouari, Nabil Hosni, Brahim Dkhil, Najeh Thabet Mliki
Summary: By tailoring a hydrothermal synthesis route, pure BiFeO3 and pure Bi2Fe4O9 single phases were successfully synthesized with different morphologies and sizes. The photocatalytic efficiency of Bi2Fe4O9 was significantly better than BiFeO3 under sunlight irradiation, attributed to its stronger absorption especially for higher energy light.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Manoj Baloni, Ram Chhavi Sharma, Hemant Singh, Bushra Khan, Manoj K. Singh, Prakash Chandra Sati, Vikas N. Thakur, R. K. Kotnala, Ashok Kumar
Summary: Crystalline samples of (BNFPT)x with x = 0.05, 0.10, 0.15, and 0.20 were produced using the solid-state reaction technique, revealing a structural transition induced by Nd doping. The average grain size decreased with increasing Nd concentration. As Nd content increased, a ferroelectric relaxor-type behavior, increased magnetization, and reduced leakage current were observed. Enhanced polarization-electric field hysteresis loops were observed with increasing Nd concentration, indicating a rise in energy storage density up to x = 0.15. The investigated materials show potential for memory and energy storage devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Multidisciplinary
Velu Venugopal, Dhandapani Balaji, Mani Preeyanghaa, Cheol Joo Moon, Bernaurdshaw Neppolian, Govarthanan Muthusamy, Jayaraman Theerthagiri, Jagannathan Madhavan, Myong Yong Choi
Summary: Researchers have developed a facile and scalable synthesis method for a BiFeO3/CeVO4 nanocomposite catalyst, which exhibits efficient photocatalytic degradation of the organic pollutant rhodamine B under visible light.
ALEXANDRIA ENGINEERING JOURNAL
(2023)