Article
Thermodynamics
Martin Reli, Nela Ambrozova, Marta Valaskova, Miroslava Edelmannova, Libor Capek, Christian Schimpf, Mykhaylo Motylenko, David Rafaja, Kamila Koci
Summary: The study found that Fe8Ce2 is the most active photocatalyst, both in standalone powder form and attached on vermiculite, for hydrogen production via water splitting. The photocatalytic activity of Fe2O3/CeO2 photocatalysts is controlled by intrinsic photocatalytic properties of the oxides and the specific surface area of the composite. The formation of heterojunction Type I with bent bands effectively inhibits the recombination of photogenerated charge carriers.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Physical
Pannan Kyesmen, Nolwazi Nombona, Mmantsae Diale
Summary: This research focused on preparing nanostructured heterojunction of alpha-Fe2O3 and porous CuO composites as photoanodes for PEC water splitting. The formations of heterojunction and porous surface morphology facilitated charge separation and enhanced PEC efficiency. The reduced bandgap and increased photon absorption in the visible spectrum were key factors in improving photocurrent density.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Physical
Vasudha Hasija, Pankaj Raizada, Ahmad Hosseini-Bandegharaei, Vijay Kumar Thakur, Quyet Van Le, Van-Huy Nguyen, Pardeep Singh
Summary: The article reviews recent advances in the utilization of silver orthophosphate (Ag3PO4) based photocatalytic materials for water splitting, focusing on suitable synthesis methods and rational engineering aspects aimed at eliminating self-photocorrosion and minimum absorption limitations in the solar spectrum.
Article
Engineering, Environmental
Suman, Saurabh Singh, Ankita, Ashok Kumar, Navish Kataria, Sandeep Kumar, Parmod Kumar
Summary: This study successfully synthesized α-Fe2O3@CeO2 and CeO2@α-Fe2O3 core-shell nanoparticles for the first time using a hydrothermal method. Characterization was done using XRD patterns and XPS spectra, revealing the magnetic properties and defects/vacancies in lattice. The core-shell nanoparticles showed higher magnetic character for pure Fe2O3 and higher photodegradation efficiency compared to single metal oxides.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Ceramics
Wenhuan Liu, Pinjing Xu, Huimei Zhu
Summary: In this study, Bi12GeO20/Ag3PO4 nanowire composite exhibited significantly improved photocatalytic performance and stability, with a RhB dye decomposition efficiency reaching 94.2%. The presence of Ag3PO4 was found to enhance the generation of active species and increase the active surface area, leading to the improved photocatalytic performance.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Atefeh Panahi, Rozita Monsef, Merzah Kareem Imran, Ayat Abdul Mahdi, Ali Abdul Kadhim Ruhaima, Masoud Salavati-Niasari
Summary: A study demonstrates the fabrication and characterization of TmVO4 nanostructures and TmVO4/Fe2O3 nanocomposites for effective photodecomposition of organic contaminants. The TmVO4/Fe2O3 nanocomposites show higher photocatalytic activity compared to pure TmVO4 and Fe2O3 nanoparticles. The recyclable magnetic TmVO4/Fe2O3 nanocomposites achieve 68.3% degradation efficiency of eriochrome black t (EBT) using visible light.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Yun Tong, Pengzuo Chen
Summary: The research team successfully developed a series of Ir-CoP/CC catalysts, achieving significantly improved bifunctional catalytic activity for overall water splitting in acidic medium. Through systematic experimental research, it was found that the Ir-3-CoP/CC catalyst has the best intrinsic activity and the most economical use of iridium.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Mei-Ling Xu, Jia-Ran Li, Xiu-Mei Wu, Ting Yu, Guan-Ying Qin, Fu-Ji Wang, Li -Na Zhang, Kui Li, Xin Cheng
Summary: Covalent organic frameworks (COFs) show great potential in the field of photocatalysis. However, the rapid charge recombination and insufficient redox catalytic capacity hinder the overall water splitting performance of COF-based photocatalysts. In this study, a novel Fe-MOF-derived dual co-catalyst was designed to enhance charge carrier separation and utilization, resulting in improved water splitting performance. The construction of Z-scheme heterostructures facilitated charge separation and transport.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Lumeng Jia, Chun Wang, Hui Liu, Kezhong Wu, Rufen Chen
Summary: This study successfully synthesized visible-light-driven photocatalysts with high activity using efficient techniques, and employed Si-alpha-Fe2O3/In2S3 composites for the degradation of 4-NP. The combination of structural advantages and chemical reactions significantly improved the photocatalytic degradation performance.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Physical
Zifan Zhang, Yuan Lin, Qianwen Liu, Xuxu Wang, Xianzhi Fu, Wenyue Su
Summary: Developing high-efficiency photocatalysts for CO2 photoreduction is crucial for addressing energy and pollution issues. The synthesized α-Fe2O3 modified La2Ti2O7 significantly improved the activity and stability for photocatalytic CO2 reduction, with enhanced charge separation efficiency. The optimized composite exhibited excellent CO2 reduction activity, providing novel insights into the design and fabrication of high-performance photocatalysts for solar-to-energy applications.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Energy & Fuels
Longge Li, Yajie Chen, Xiu Liu, Qi Wang, Lizhi Du, Xi Chen, Guohui Tian
Summary: Rational component control and architectural design were employed to fabricate α-Fe2O3/SnS2 nanostructures with enhanced photoelectrochemical performance. The optimized photoanode exhibited accelerated charge separation and increased active sites, leading to improved PEC performance. Decorating with Cu2O nanoparticles further enhanced water splitting performance and incident photon to current efficiency.
Article
Engineering, Environmental
Chunxiao Li, Jingran Xiao, Haixia Zhang, Xin Jia, Tong Xu, Zhiying Liu, Qifeng Zhao, Bo Wang
Summary: In this study, the poor charge separation efficiency of the alpha-Fe2O3 photoanode for photoelectrochemical water splitting was greatly enhanced through Ge-Ti codoping, AlOOH modification, secondary growth, and incorporation of a NiFeOx cocatalyst. The optimized photoanode exhibited high photocurrent density and low onset potential.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Mengli Tong, Derong Sun, Ranran Zhang, Hui Liu, Rufen Chen
Summary: Si-alpha-Fe2O3/CdS composites with highly exposed (110) facets exhibited enhanced visible-light photocatalytic activity due to the construction of the heterojunction, which effectively inhibits the recombination of photogenerated electron-hole pairs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
O. E. Cigarroa-Mayorga
Summary: In this study, electrodeposition technique was used to fabricate ZnO film, ZnO microrods, and ZnO nanowires array decorated with Fe2O3 nanoparticles. The ZnO-Fe2O3 heterostructure exhibited enhanced photocatalytic activity.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Environmental Sciences
Ibtihal Mimouni, Asmae Bouziani, Yassine Naciri, Mourad Boujnah, Mohammed Alaoui El Belghiti, Mohammed El Azzouzi
Summary: Alpha-Fe2O3 nanoparticles were synthesized using a straightforward method, and the influence of various calcination temperatures on crystal structure, optical, and photocatalytic properties was investigated. Results showed that the average crystallite size increased with higher calcination temperatures, and the bandgap energy decreased correspondingly. The highest photocatalytic degradation efficiency was achieved with a sample calcinated at 300 degrees C, attributed to the presence of OH· radicals in the photocatalytic process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
