Article
Chemistry, Multidisciplinary
Kyusung Kim, Sangwoo Chae, Pil Gyu Choi, Toshio Itoh, Nagahiro Saito, Yoshitake Masuda
Summary: ZnO nano-bullets were synthesized using solution plasma without any chemical agents, exhibiting high crystalline structure with (100) and (101) crystal facets, showing potential for applications in advanced technologies.
Article
Materials Science, Biomaterials
Ganit Indech, Lidor Geri, Chen Mordechai, Yarden Ben Moshe, Yitzhak Mastai, Orit Shefi, Amos Sharoni
Summary: Micro- and nano-particles are essential for various current and emerging technologies, particularly in biological studies and applications. Recent developments have led to multifunctional particles that can enhance their effectiveness and enable novel applications. However, conventional fabrication methods for particles are time-consuming and challenging to fine-tune for multifunctional applications. In this study, a simple and facile method for fabricating dome-shaped micron- and nano-sized particles was presented, which allows for the engineering of multifunctional particles with pre-defined properties for specific biological applications.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Analytical
Kang Liu, Rujia Liu, Dengchao Wang, Rongrong Pan, Hong-Yuan Chen, Dechen Jiang
Summary: This study utilizes a highly sensitive electrode to investigate reactive oxygen species (ROS) in a 3D cell model. By observing the distribution of ROS in the cell sphere, it is discovered that there is oxygen stress in the 3D cancer cell model, which differs from the metabolism in 2D cell models.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Wenpo Luo, Abdelhafed Taleb
Summary: In this research, TiO2 with controlled morphologies were successfully prepared hydrothermally using TiO2 aggregates of different sizes. Various characterization techniques such as XRD, XPS, FEGSEM, EDS, and HRTEM were employed to study the prepared TiO2 powders. It was observed that the morphology of TiO2, whether nanobelt, nanourchin, or nanotube, depended on the synthesis conditions, while the properties of nanoparticles were influenced by the TiO2 nanoparticles aggregate used as a precursor.
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, Applied
Diana Moran, Gemma Gutierrez, Rafael Mendoza, Marilyn Rayner, Carmen Blanco-Lopez, Maria Matos
Summary: In this study, a microemulsion method was developed to synthesize controlled-size starch nanoparticles (SNPs). The method involved testing different formulations to prepare water-in-oil microemulsions, and the resulting SNPs were characterized in terms of size, morphology, monodispersity, and crystallinity. The method was also used to synthesize starch-based nanocomposites with superparamagnetic properties. This innovative technology shows potential for the design and development of functional nanomaterials.
CARBOHYDRATE POLYMERS
(2023)
Article
Materials Science, Multidisciplinary
Amal F. Seliem, Ayeda Y. A. Mohammed, A. Attia, Naseeb Ahmad, Salma Aman, Mohamed M. Ibrahim
Summary: Bismuth ferrite synthesized with niobium doping showed enhanced photocatalytic activity under visible light, attributed to the significant absorption of visible light and effective dissociation of photogenerated electron and hole pairs.
Article
Chemistry, Multidisciplinary
Ruijun Tang, Jianxun Wang, Yueshan Xu, Shasha Wang, Gejihu De
Summary: Heterogeneous isomorphic Na0.9Ca0.9Gd1.1F6:Yb3+/Er3+ nanorods with excellent luminescence properties were successfully obtained, featuring multiple luminescence centers that enhance upconversion luminescence efficiency. The discovery of a transparent and flexible luminescent film provides new ideas for improving the application of nanocrystals.
Article
Chemistry, Multidisciplinary
Daniel Langerreiter, Mauri A. Kostiainen, Sandra Kaabel, Eduardo Anaya-Plaza
Summary: This study presents a new solid-state approach for synthesizing phthalocyanines, reducing the amount of the flammable and harmful solvent DMAE. Through systematic screening of reaction parameters, the influence of temperature, presence of a template, and the role of DMAE in the conversion of phthalonitrile to phthalocyanine was revealed. These results lay the foundations for greener synthesis of high-performance dyes and expand the application of solid-state synthesis to a wider family of phthalocyanines.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Hossein Etemadi, Paul G. Plieger
Summary: In this study, metal spinel nanoferrites were successfully prepared using the solvothermal method, and their structural, morphological, and magnetic properties were characterized using various techniques. The successful doping of Zn2+ and Mn2+ ions into the Fe3O4 structure was confirmed by EDS, AAS, and XPS analysis, leading to an expansion of the cell unit. All prepared nanoferrites exhibited superparamagnetic behavior at room temperature.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Applied
Huaiyu Zhang, Amanda M. Johnson, Qi Hua, Jie Wu, Yalan Liang, Muzaffer A. Karaaslan, Jack N. Saddler, Scott Renneckar
Summary: This study synthesized highly uniform xylan micro/nanoparticles ranging from 400 nm to 2.5 μm in diameter in aqueous solutions using a self-assembly method. The particle size of the xylan particles was controlled by the initial concentration of the xylan suspension. The resulting particles have potential applications in hydrogels, aerogels, drug delivery, and photonic materials, and can be used to create a diffraction grating film for visible light.
CARBOHYDRATE POLYMERS
(2023)
Article
Materials Science, Multidisciplinary
T. Pikula, T. Szumiata, K. Siedliska, V. Mitsiuk, R. Panek, M. Kowalczyk, E. Jartych
Summary: In this study, BiFeO3 powders were synthesized using a sol-gel method. It was found that the purest phase was formed at annealing temperatures ranging from 400 degrees C to 550 degrees C, and samples annealed below 550 degrees C exhibited nanocrystalline properties. Mossbauer spectroscopy and magnetization measurements revealed the presence of weak ferromagnetic properties, increased magnetization, and spin-glass-like behavior in samples with decreased grain size.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Hongfeng Li, Ning Ji, Xingyue Ji, Shangjie Liu, Yu Shen, Ting Pan, Peng Wu, Junfeng Hui, Baoli Zha, Weina Zhang
Summary: Flexible design is a significant feature of metal-organic frameworks (MOFs), which can enhance the efficiency of MOFs in various applications. In this study, a facile strategy was developed to achieve flexible crystalline transformation of MOF polyhedra into crisp-like derivatives. The resulting nanosheets possessed abundant active sites, and composites such as Zn-2(bim)(4)@ZnS and Zn-2(bim)(4)@CoS were successfully obtained and demonstrated lower overpotential and good stability in oxygen evolution reactions. This research presents a promising approach to design functional derived materials from MOFs using an interesting crystalline transformation route.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Ceramics
Manel Othman, Ikbel Mallek-Zouari, Hanene Akrout, Najeh Thabet Mliki
Summary: This study investigates the effect of cobalt doping on bismuth ferrite and finds that increasing the cobalt concentration during synthesis can significantly decrease the particle size and increase the band gap of the material. The application of the samples in the photodecomposition of methylene blue under direct sunlight irradiation demonstrates unusual results due to the unique sizes of the samples and the phenomena that can occur at that size scale.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Saurav Bhattacharya, Xiang Ma, Ali S. Mougharbel, Mohamed Haouas, Pei Su, Michael Forrester Espenship, Dereje H. Taffa, Helge Jaensch, Anton-Jan Bons, Tobias Stuerzer, Michael Wark, Julia Laskin, Emmanuel Cadot, Ulrich Kortz
Summary: The study reports the synthesis and structural characterization of a giant, neutral molecular disk, Pd-40, which can function as an effective heterogeneous hydrogenation catalyst for various organic transformations.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Shifa Wang, Maoyuan Li, Huajing Gao, Zijuan Yin, Chaoli Chen, Hua Yang, Leiming Fang, Jagadeesha Angadi, Zao Yi, Dengfeng Li
Summary: A simple two-step method was developed to fabricate ternary heterojunctions of YMnO3/CeO2/MgAl2O4 composite photocatalysts, which exhibited good adsorption capacity and photocatalytic activity. The GA model showed the best predictive ability for the adsorption capacity. The YCM photocatalysts displayed high optical absorption coefficient, charge carrier transfer and separation efficiency, adsorbed oxygen concentration and interface defect, high adsorption capacity, and photocatalytic activity. This study demonstrated the huge potential of YCM composite photocatalysts for eco-friendly adsorption of dye and degradation of drugs.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Jiao Zhang, Xiaofeng Sun, Jinyuan Ma, Zao Yi, Tao Xian, Shifa Wang, Guorong Liu, Xiangxian Wang, Hua Yang
Summary: Rational design of heterostructures is an effective strategy for enhancing the photocatalytic activity of semiconductors. In this study, a dual Z-scheme CdS/ZWO/ZnS heterojunction photocatalyst was synthesized by assembling zero-dimensional CdS and ZnS quantum dots onto one-dimensional ZnWO4 nanorods. The photocatalytic experiments demonstrated that the dual Z-scheme heterojunction photocatalyst exhibited significantly higher photodegradation activity compared to individual CdS, ZnS, and binary CdS/ZWO and ZnS/ZWO heterojunctions. The characteristics and photocatalytic mechanism of the CdS/ZWO/ZnS photocatalysts were investigated using various measurement techniques and computational calculations.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
Maoyuan Li, Shifa Wang, Huajing Gao, Zijuan Yin, Chaoli Chen, Hua Yang, Leiming Fang, Jagadeesha Angadi Veerabhadrappa, Zao Yi, Dengfeng Li
Summary: A simple polyacrylamide gel method combined with low temperature sintering technology has been used to synthesize the C-O functional groups grafted MgAl2O4/C3N4/YMnO3 (MAO-CN-YMO) heterojunction photocatalysts with enhanced visible-light-induced photodegradation toward oxytetracycline hydrochloride (OTC-HCl).
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Jiao Zhang, Jinyuan Ma, Xiaofeng Sun, Zao Yi, Tao Xian, Xianwen Wu, Guorong Liu, Xiangxian Wang, Hua Yang
Summary: A new type of Ag2MoO4/ZnWO4 composite photocatalyst with a Z-scheme mechanism was developed by anchoring AMO nanoparticles onto ZWO nanorods. The performances and photocatalytic mechanism of the AMO/ZWO heterojunctions were studied through multiple characterization methods and DFT calculations. The enhanced photocatalytic mechanism of the AMO/ZWO heterojunctions was revealed to be the efficient separation of photocarriers via a Z-scheme transfer process, which was confirmed by simulated-sunlight-driven photodegradation experiments and DFT calculations.
Article
Materials Science, Multidisciplinary
Hongqin Li, Tao Xian, Lijing Di, Xiaofeng Sun, Chenyang Sun, Xuelian Ma, Ke Ma, Jianfeng Dai, Hua Yang
Summary: AuAg alloy nanoparticles were decorated on delta-Bi2O3 surface to obtain AuAg@delta-Bi2O3, and then AuAg@delta-Bi2O3 were hydrothermally combined with BiOBr plate to form Z-scheme AuAg@delta-Bi2O3/BiOBr. The photocatalytic activity of samples was evaluated under simulated sunlight irradiation, and the addition of delta-Bi2O3 significantly enhanced the photocatalytic activity of BiOBr. The introduction of AuAg nanoparticles further improved the photocatalytic activity, leading to highly efficient removal of pollutants. The presence of AuAg alloy nanoparticles at the interface of Z-scheme delta-Bi2O3/BiOBr promoted the separation of photogenerated charges through a Z-scheme charge migration mechanism.
Article
Materials Science, Multidisciplinary
Chuan Yu, Shifa Wang, Kening Zhang, Maoyuan Li, Huajing Gao, Jing Zhang, Hua Yang, Lei Hu, Angadi. V. Jagadeesha, Dengfeng Li
Summary: A polyacrylamide gel method combined with low temperature sintering technology was used to fabricate BaTiO3/gamma-Al2O3 composite photocatalysts with excellent photocatalytic activity for the degradation of tetracycline hydrochloride under simulated sunlight. The effects of BaTiO3/ gamma-Al2O3 mass percentages, drug concentrations and pH values on photocatalytic activity were investigated. The optimum conditions were found to be 5 wt% BaTiO3/ gamma-Al2O3, 50 mg/L drug concentration, and pH 6.77. The enhanced photocatalytic activity of BaTiO3/ gamma-Al2O3 was attributed to the defect states in alumina, interfacial defects between barium titanate and alumina, and the type II band arrangement structure.
Article
Optics
Shiri Liang, Feng Xu, Hua Yang, Shubo Cheng, Wenxing Yang, Zao Yi, Qianjv Song, Pinghui Wu, Jing Chen, Chaojun Tang
Summary: This study achieves wideband absorption in the long wavelength infrared range using a metamaterial absorber based on nanowire cross surrounding. The absorber has polarization independence and high absorptivity in the LWIR band, which can be adjusted by changing the geometric parameters. It is suitable for infrared imaging, thermoelectronic devices, and thermal detection applications.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Physical
Wanlai Zhu, Yingting Yi, Zao Yi, Liang Bian, Hua Yang, Jianguo Zhang, Yang Yu, Chao Liu, Gongfa Li, Xianwen Wu
Summary: To improve optical fiber sensing performance and broaden its application, a photonic crystal fiber (PCF) plasmonic sensor with a U-shaped channel based on surface plasmon resonance (SPR) is proposed in this study. The influence rules of structural parameters, such as the radius of the air hole, the thickness of the gold film, and the number of U-shaped channels, were investigated using COMSOL and the finite element method. The dispersion curves, loss spectrum, and electric field intensity distribution were studied under various conditions. The proposed sensor achieved a maximum refractive index sensitivity of 24.1 mu m RIU-1 in the RI range of 1.38-1.43, with a FWHM of 10.0 nm, a FOM of 2410 RIU-1, and a resolution of 4.15 x 10(-6) RIU. The sensor combines the highly sensitive SPR effect and allows for real-time detection of the external environment. The detection range and sensitivity can be increased by adjusting the structural parameters. The sensor has a simple structure and excellent performance, providing a new approach for real-time detection and highly integrated sensing.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Optics
Yaqian Ren, Xiangxian Wang, Xiujuan Di, Tianxu Jia, Tianshan Chen, Liping Zhang, Hua Yang, Yunping Qi, Chaojun Tang
Summary: This study investigates the guided mode interference lithography technique using a symmetric metal-cladding dielectric waveguide structure. By adjusting the thickness of the resist and rotating the sample, periodic sub-wavelength gratings with different structures can be fabricated successfully.
Article
Chemistry, Physical
Qianfei Ma, Jinyuan Ma, Zhansheng Lu, Kanghui Yao, Zao Yi, Xianwen Wu, Xiujuan Chen, Hua Yang
Summary: A new type of BiVO4 hollow cuboids was synthesized via a hydrothermal reaction route, and O vacancies were created on their surface through NaBH4 treatment. The surface-engineered BiVO4 exhibited an adsorption performance about 96.4 times greater than that of pristine BiVO4 in removing methylene blue. Adsorption kinetics, isotherms, and thermodynamics analyses revealed a spontaneous, exothermic, and heterogeneous multilayer adsorption process. The adsorption mechanism of the surface-engineered BiVO4 was elucidated based on experimental and theoretical calculations.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Materials Science, Multidisciplinary
Chaoli Chen, Jinyuan Ma, Zao Yi, Shifa Wang, Huajing Gao, Yong Wang, Hua Yang
Summary: A highly efficient and recyclable Bi2O2CO3 (BOC) adsorbent with excellent adsorption performance for removing organic pollutants and Cr(VI) ions has been developed using different surfactants during the hydrothermal synthesis of BOC nanostructures. The CTAB modified BOC sample (BOC-CTAB) demonstrates the highest adsorption performance and can be easily regenerated through a simple photodegradation process. The adsorption kinetics, isotherms and thermodynamics of methyl orange (MO) and Cr(VI) onto BOC-CTAB were systematically investigated.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Physical
Tao Xian, Xiaofeng Sun, Lijing Di, Chenyang Sun, Hongqin Li, Caixia Ma, Hua Yang
Summary: AuPt/BiOBr composite with AuPt alloy nanoparaticles decorated on BiOBr surface was prepared via photoreduction. It showed significantly enhanced photocatalytic degradation ability compared with Au/BiOBr, Pt/BiOBr, and bare BiOBr. The piezo-photocatalytic removal activity of AuPt/BiOBr towards tetracycline (TC) degradation was evaluated under simulated sunlight and ultrasound irradiation, and exhibited superior performance to individual piezo and photocatalytic results.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Xiaofeng Sun, Tao Xian, Ruishan Li, Hua Yang
Summary: In this study, novel 13-Bi2O3/BiFeO3 heterojunctions were designed to enhance the piezo-photocatalytic activity for tetracycline hydrochloride (TC) elimination. The results showed that the optimal composite 9.1 %BO/BFO had a photodegradation activity 5.2 times higher than that of BiFeO3 and 1.9 times higher than that of 13-Bi2O3, which can be explained by the heterojunction-interface-field-induced Z-scheme photocarrier transfer mechanism. The piezo-photodegradation activity of the 9.1 %BO/BFO composite was further increased under both simulated sunlight and ultrasonic irradiation, demonstrating a synergistic enhancement between photocatalysis and piezocatalysis.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Wenxin Li, Jing Ma, Huafeng Zhang, Shubo Cheng, Wenxing Yang, Zao Yi, Hua Yang, Jianguo Zhang, Xianwen Wu, Pinghui Wu
Summary: In this research, a tunable broadband absorber based on a layered resonant structure was designed, which achieved high absorption (more than 0.9) in the frequency range of 18-28 THz. The high absorption was attributed to strong resonance absorption between the layers and the resonance of the localised surface plasmon. The absorber, consisting of three layers of Dirac semimetal and three layers of optical crystal plates on a gold substrate, also showed tunability and absorption stability.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Xiaofeng Sun, Ting Xu, Tao Xian, Zao Yi, Guorong Liu, Jianfeng Dai, Hua Yang
Summary: Development of In2O3/BiFeO3 heterojunctions as highly-efficient piezo-photocatalysts for environmental depollution by degrading tetracycline hydrochloride (TC) has been investigated. The results showed that the optimal composite 10.7%IO/BFO exhibited significantly enhanced piezo-photocatalytic activity compared to In2O3 and BiFeO3, with photodegradation activity increased by 2.05 and 3.97 times, respectively. The study also revealed a synergistic enhancement between photocatalysis and piezocatalysis, resulting in a larger piezo-photodegradation activity.
APPLIED SURFACE SCIENCE
(2023)