Article
Materials Science, Ceramics
H. Bahiraei, S. Azarakhsh, S. Ghasemi
Summary: This study investigates the photocatalytic activity of magnetic CoFe2O4/g-C3N4/ZnO (CF-gCN/ZnO) nanocomposite as a visible-light photocatalyst. The heterojunction CF-gCN/ZnO photocatalyst achieved a photodegradation efficiency of 89% for degradation of methylene blue (MB) after 100 min of irradiation. The formation of heterojunction structures at the interface of g-C3N4 and ZnO leads to improved photocatalytic activity due to the separation of the photo-generated electron-hole pairs.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Mahdieh Ghobadifard, Shilan Foroomand, Sajjad Mohebbi
Summary: A Co3O4 QDs-Ag2MoO4 (AMO) heterojunction was prepared by a hydrothermal method and characterized by various physicochemical methods. The SEM images showed that AMO particles and Co3O4 QDs-AMO had 3D-hexagon and nanosheet morphology, respectively. The Co3O4 QDs-AMO photocatalyst exhibited a higher photoactivity compared to pure AMO nanoparticles, attributed to its lower charge recombination rate.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Yaqing Zhao, Chucheng Lin, Longrui Zhang, Xianfeng Meng, Hua Tang
Summary: A novel Tremella-like Bi2WO6 catalyst was successfully obtained by a facile hydrothermal technique, which showed remarkable visible-light catalytic performance and excellent stability, making it highly potential in environmental protection for dye degradation and CO2 reduction.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Tasmia Nawaz, Muhammad Bilal Tahir, M. Sagir, Khurram Shahzad, Arshid Mahmood Ali, Hussein Alrobei
Summary: The Z-scheme based photocatalyst BiVO4/Ag/NiFe2O4 was prepared using the hydrothermal method, demonstrating excellent photocatalytic performance under visible light irradiation and effective removal of azo dye and phenol.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Manjiri A. Mahadadalkar, Ganesh Dhakal, Sumanta Sahoo, Deivasigamani Ranjith Kumar, Marjorie Lara Baynosa, Van Quang Nguyen, Mostafa Saad Sayed, Abdelrahman M. Rabie, Woo Kyoung Kim, Jae-Jin Shim
Summary: In this study, a TiO2/In2S3 heterojunction composite photocatalyst was successfully prepared through a simple low-temperature hydrothermal method. The composite showed excellent photocatalytic degradation performance for Rhodamine B under solar light irradiation, with a degradation rate of 99.9% in just 20 minutes. The environmentally friendly synthesis process and high stability make the TiO2/In2S3 composite a promising candidate for cost-effective wastewater treatment.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Environmental Sciences
Lianxin Yuan, Weixuan Liu, Wanting Zhang
Summary: Element doping is an effective method for enhancing the photocatalytic performance of photocatalysts. This study utilized potassium sorbate as a new precursor to dope potassium ions into g-C3N4 during the calcination process, resulting in the formation of potassium-doped g-C3N4 (KCN). Through various characterization techniques and electrochemical measurements, it was found that potassium doping efficiently modified the band structure of g-C3N4, enhancing light absorption and conductivity, which accelerated charge transfer and photogenerated carrier separation. These findings demonstrate the potential of potassium incorporation in g-C3N4 for fabricating high-performance photocatalysts for organic pollutant removal.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Yuanyuan Tang, Wentai Wang, Bozheng Wang, Xing Sun, Chunyu Guo, Jia Xu
Summary: A novel efficient AgCl-based heterojunction photocatalyst was synthesized by in-situ electrostatic-assembly of carbon dots, showing significantly enhanced visible-light photocatalytic performances in dye degradation and hydrogen evolution. The photocatalyst also exhibited good reusability and stability, along with a proposed photocatalytic mechanism facilitating the transfer-separation of photo-generated electron-hole pairs. This work could provide a new route to prepare novel high-efficient photocatalysts for energy and environmental applications.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2021)
Article
Engineering, Environmental
Marjan Tanzifi, Mohsen Jahanshahi, Majid Peyravi, Soodabeh Khalili
Summary: The rational decoration of heterojunctions with photocatalytic activity under visible light has been a hot research topic. In this work, graphitic carbon nitride (g-C3N4)/zirconium dioxide (ZrO2) heterojunctions with different morphologies were successfully synthesized and characterized. The results showed that the morphology played a crucial role in achieving efficient heterojunction photocatalysts.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Muzaffar Iqbal, Aliya Ibrar, Ashraf Ali, Shabeeb Hussain, Salma Shad, Sami Ullah, Thamraa Alshahrani, Jabir Hakami, Firoz Khan, Khalid Hussain Thebo
Summary: This study successfully synthesized Mn doped Bi2S3 nanoflowers using a simple hydrothermal method and investigated their physicochemical properties and morphology. The 3% Mn doped Bi2S3 nanostructure exhibited superior photodegradation performance and the photocatalysis degradation mechanism was studied in detail. This work provides a new direction for the development of highly efficient photocatalysts to solve water pollution issues.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Environmental Sciences
Ziyue Zhou, Leguan Zhang, Wuao Su, Yuan Li, Gaoke Zhang
Summary: The study synthesized AgI/Sb2O3 heterojunction photocatalysts through a simple method, which exhibited excellent degradation performance under visible light, mainly due to the effective transfer of e(-) from AgI to Sb2O3 promoting the separation of photo-induced carries. Moreover, the electron transfer from AgI to Sb2O3 also contributed to the improvement of stability.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Electrical & Electronic
S. Asaithambi, P. Sakthivel, M. Karuppaiah, V Balaji, R. Yuvakkumar, G. Ravi
Summary: In this study, Mn-doped SnO2@ZnO nanocomposites were synthesized for the degradation of Methylene blue and Rhodamine B dyes under visible light irradiation. The analytical results identified the crystal structure, optical properties, and purity of the synthesized samples, and evaluated the photocatalytic degradation efficiency under visible light irradiation.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Sijing Chen, Yongjiang Di, Hang Li, Mengyu Wang, Bi Jia, Rong Xu, Xiaoyan Liu
Summary: The composite photocatalyst prepared by integrating M-type SrFe12O19 into MoS2 microsphere surface has effective visible light response and magnetic recovery capability, achieving high degradation efficiency for methylene blue and nearly twice the reaction rate of pure MoS2.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Jirayus Piriyanon, Tammanoon Chankhanittha, Sujittra Youngme, Khuanjit Hemavibool, Supinya Nijpanich, Sawitree Juabrum, Narong Chanlek, Suwat Nanan
Summary: The study successfully fabricated a visible-light-active MoS2/Ag3PO4 heterojunction photocatalyst using hydrothermal technique and chemical precipitation route, which exhibited efficient removal of pharmaceuticals and dyes under visible light. The creation of heterostructure improved electron-hole separation efficiency and absorption capacity, leading to high stability and cycling ability of the catalyst.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Chirag Porwal, Vishal Singh Chauhan, Rahul Vaish
Summary: Bi2ZnB2O7 (BBZO) was synthesized via solid-state reaction route and its properties were characterized using various techniques including diffuse reflectance spectrophotometer (DRS), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoemission spectroscopy (XPS), and scanning electron microscopy (SEM). The catalytic activity of BBZO was evaluated for the degradation of methylene blue (MB) dye solution using photocatalysis under visible light and solar light. The stability of BBZO was confirmed through post-analysis using XPS, SEM, and Raman spectroscopy.
SURFACES AND INTERFACES
(2023)
Article
Environmental Sciences
Devina Rattan Paul, Rishabh Sharma, Vikrant Singh Rao, Priyanka Panchal, Shubham Gautam, Anshu Sharma, Satya Pal Nehra
Summary: In this study, a highly visible light responding 2D photocatalytic material was prepared and analysed. The results showed that the GCNML (0.5,2) sample had potential application for photodegradation of organic pollutants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Mirabbos Hojamberdiev, Ronald Vargas, Zukhra C. Kadirova, Kosaku Kato, Hadi Sena, Aleksei G. Krasnov, Akira Yamakata, Katsuya Teshima, Martin Lerch
Summary: Doping with 5% aliovalent metal cations at the B site can enhance the visible light-induced photocatalytic H-2 and O-2 evolution efficiency of BaTaO2N, without altering its crystal structure and optical absorption properties.
Article
Chemistry, Physical
Ruijie Zhu, Huijun Yang, Wei Cui, Laras Fadillah, Tianhong Huang, Zetao Xiong, Chunmei Tang, Damian Kowalski, Sho Kitano, Chunyu Zhu, Daniel R. King, Takayuki Kurokawa, Yoshitaka Aoki, Hiroki Habazaki
Summary: This study successfully eliminates the growth of dendritic zinc crystals on the anode by using a high strength hydrogel polymer electrolyte, resulting in a long-lasting and stable zinc anode. This achievement brings high capacity and long lifespan zinc-ion batteries one step closer to practical application.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Ruijie Zhu, Zetao Xiong, Huijun Yang, Ning Wang, Sho Kitano, Chunyu Zhu, Yoshitaka Aoki, Hiroki Habazaki
Summary: In this study, niobium-coated aluminum foils with superior corrosion resistance and electronic conductivity were prepared using direct current magnetron sputtering. The modified aluminum current collectors showed high coulombic efficiency and cycling stability in aqueous zinc-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Zhuogen Li, Gangqiang Zhu, Weibin Zhang, Lujun Zhu, Baowei Cao, Jianzhi Gao, Xianjin Shi, Yu Huang, Peng Liu, Mirabbos Hojamberdiev
Summary: In this study, dual-functional copper (Cu-0/Cu2+)-modified SrTiO3-delta nanosheets were successfully synthesized and showed excellent photothermal catalytic performance for CO2 reduction reaction (CO2RR) and H-2 evolution. The synergistic effect of Cu-0 and Cu2+ was found to enhance the catalysis ability in these two fields. This work provides a novel strategy to synthesize metal-semiconductor nanostructures for efficient harnessing of solar energy into fuel.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Jiarun Cheng, Chaojie Lyu, Hangren Li, Jiwen Wu, Yue Hu, Bin Han, Kaili Wu, Mirabbos Hojamberdiev, Dongsheng Geng
Summary: An original strategy of heteroatom (P and S) doping was reported to manipulate ORR selectivity of N-doped hollow mesoporous carbon spheres (N-HMCS). Heteroatom doping can modulate the electronic structure and the proportion/configuration of doped N in N-HMCS, as well as regulate the pathway of ORR. The presence of rich-graphitic N sites and electron-rich C-P bond domains in N,P-HMCS act as electron donors, making *OOH more unstable and easier to desorb into H2O2. Conversely, the introduction of highly electronegative S hinders the desorption of *OOH through a strong interaction with the electron-deficient C-S bond domain, leading to the breakage of the O-O bond and promoting four-electron ORR along with the rich-pyridinic N receptor site. The activity and kinetics mechanism of the reaction show a positive correlation with the proportion of graphitic N, indicating that graphitic N is the primary active site with a much faster electron transfer capacity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Electrochemistry
Laras Fadillah, Damian Kowalski, Sho Kitano, Chunyu Zhu, Yoshitaka Aoki, Hiroki Habazaki
Summary: This study highlights the enhanced photocatalytic activity of Fe2O3 nanotubes through the formation of a hetero-junction with Fe2WO6 and doping of W6+ ions. The nanotubular Fe2O3/Fe2WO6 film demonstrates superior photoelectrochemical oxygen evolution reaction and degradation of methylene blue compared to the nanoporous W-free Fe2O3 film. The incorporation of W species into the alpha-Fe2O3 phase and the formation of the W-doped alpha-Fe2O3/Fe2WO6 heterojunction facilitate the separation of photogenerated electron-hole pairs, thereby enhancing photocatalytic activity. Therefore, the nanotubular Fe2O3/Fe2WO6 film shows great potential as a visible-light-driven photocatalyst.
ELECTROCHEMISTRY COMMUNICATIONS
(2023)
Article
Physics, Applied
Yingying Lin, Hadi Sena, Martin Frentrup, Markus Pristovsek, Yoshio Honda, Hiroshi Amano
Summary: The stress relaxation of Al0.19Ga0.81N grown by metal-organic vapor phase epitaxy on quasi-bulk GaN substrates was studied using x-ray diffraction. The anisotropic in-plane stress caused orthorhombic distortion of the lattice. A mathematical method was developed to calculate the distortion along different directions and obtained the lattice parameters, Al content, and strain values. The stress relaxation in the two in-plane directions involved different mechanisms, with misfit dislocations and crack formation being the dominant methods of relaxation.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
Amugul Esbergenova, Maksudbek Yusupov, Maryam Ghasemitarei, Rivojiddin Jalolov, Mirabbos Hojamberdiev, Ulugbek Shaislamov
Summary: The particle morphology of ZnO nanostructures significantly influences their photocatalytic activity. ZnO nanostructures with a nanostar-like morphology exhibit the highest photocatalytic activity due to the presence of a large number of oxygen vacancy-related defects on the (1 0 1) facet of ZnO.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Nanoscience & Nanotechnology
Nicole Yvonne Suss, Eva M. Heppke, Elena Voloshina, Lukas Schifferle, Sergey S. Lobanov, Sergio Speziale, Hans Josef Reichmann, Tim Kuellmey, Beate Paulus, Martin Lerch, Ilias Efthimiopoulos
Summary: Quaternary kesterite-type compounds have shown promise for solar cells. In this study, experimental and computational high-pressure investigations were conducted on Ag2ZnSnS4 and Ag2CdSnS4 compounds. The results reveal successive transformations and predict metallic character for the high-pressure phases of both materials.
Review
Chemistry, Multidisciplinary
Mirabbos Hojamberdiev, Ronald Vargas, Fuxiang Zhang, Katsuya Teshima, Martin Lerch
Summary: This review provides a comprehensive summary of the progress and challenges of barium tantalum oxynitride for solar water splitting, discussing various strategies to enhance its water-splitting performance and presenting the future prospects of its application.
Article
Materials Science, Multidisciplinary
Yahang Wang, Lujun Zhu, Jingwei Li, Weibin Zhang, Xianjin Shi, Yu Huang, Mirabbos Hojamberdiev, Gangqiang Zhu
Summary: Water is considered an inhibitor of CO oxidation. The practical application of CO oxidation is investigated by coupling Au nanoparticles and defective CuO to form metal-support interactions and oxygen vacancies. The introduction of Au creates new CO adsorption sites, solving the competitive adsorption problem with H2O and O2. The coupling of metal-support interactions and oxygen vacancies enhances the catalyst's ability and oxygen activation and migration. Au-CuO exhibits stable CO oxidation at room temperature under humid conditions. Theoretical calculations confirm the competitive adsorption and the influence of metal-support interactions and oxygen vacancies on catalyst performance, explaining the mechanism of water resistance in CO catalytic oxidation.
ADVANCED POWDER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Sho Kitano, Yuki Sato, Reiko Tagusari, Ruijie Zhu, Damian Kowalski, Yoshitaka Aoki, Hiroki Habazaki
Summary: This study presents a facile synthesis method for composite electrocatalysts with highly active performance for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). The composite catalyst is composed of metal oxyhydroxides and spinel oxides containing Co, Ni, and Fe, and is synthesized by simultaneous production of metal hydroxide and layered double hydroxide (LDH) through precipitation method with controlled molar ratio, followed by moderate temperature calcination. The composite catalyst exhibits superb bifunctional performances and shows high power density and excellent durability when assembled in zinc-air batteries.
Article
Chemistry, Multidisciplinary
Huijun Yang, Ruijie Zhu, Yang Yang, Ziyang Lu, Zhi Chang, Ping He, Chunyu Zhu, Sho Kitano, Yoshitaka Aoki, Hiroki Habazaki, Haoshen Zhou
Summary: A robust polymer separator is used to address the challenges of dendritic Zn morphology and short circuits in Zn-based energy storage systems. This enables high reversibility and energy density, making it a sustainable battery technology.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Engineering, Environmental
Mirabbos Hojamberdiev, Ana Laura Larralde, Ronald Vargas, Lorean Madriz, Kunio Yubuta, Lokesh Koodlur Sannegowda, Ilona Sadok, Agnieszka Krzyszczak-Turczyn, Patryk Oleszczuk, Bozena Czech
Summary: In this study, the photocatalytic activity of bismuth tungstate (Bi2WO6) for the degradation of perfluoroalkyl substances (PFAS) was enhanced by partially substituting Zn2+ for Bi3+ in the crystal lattice. The partial substitution of Zn2+ influenced the crystal structure, optical properties, and morphology of the nanoparticles of Bi2WO6, resulting in enhanced photocatalytic activity. The photodegradation of PFAS was mainly attributed to the photo-excited holes and superoxide radicals generated during the process.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Ginji Harada, Ryosuke Sinmyo, Shuhou Maitani, Tomoaki Watanabe, Mirabbos Hojamberdiev, Kitaru Suzuki, Hajime Wagata
Summary: In this study, submillimeter-sized single crystals of perovskite-type oxynitride SrTaO2N were successfully grown using an NH3-assisted SrCl2 flux method, and the crystal growth mechanism was systematically investigated.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Chemical
Yongxiang Wu, Nguyen Thi Hong Nhung, Deqian Zeng, Nengneng Luo, Akira Otsuki, Gjergj Dodbiba, Toyohisa Fujita
Summary: This study proposed a novel method for synthesizing flower-like vaterite calcium carbonate using nanobubble-containing ethanol and water mixed solution as the solvent and discussed the formation mechanism of vaterite with different shapes. The synthesized vaterite has significant practical interest in the integrated treatment of wastewater contaminated by heavy metals with effective Cd(II) removal, providing a promising field for studying heavy metal and pollutant adsorption in the liquid phase.
ADVANCED POWDER TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jian Gong, Lipo Cheng, Ming Liu, Jie Jiang, Xiaoduo Ou
Summary: This study investigates the effects of particle shape on the collapse of granular columns using the discrete element method. The results show that particle shape has a significant impact on deposition morphology, energy evolution, and mechanical coordination number. Sphericity and angularity are identified as the most important macroscale factors, while roughness has a weaker microscale influence.
ADVANCED POWDER TECHNOLOGY
(2024)
