Article
Chemistry, Physical
Jianghua Lang, Kazuma Takahashi, Masaru Kubo, Manabu Shimada
Summary: The study successfully synthesized a TiO2-CNT-Ag ternary composite film and significantly improved the photocatalytic activity for the degradation of rhodamine 6G.
Article
Materials Science, Multidisciplinary
Min Joo Ahn, Kyu-yeon Shim, Woo Seop Jeong, Seongho Kang, Hwayoung Kim, Dae-sik Kim, Junggeun Jhin, Jaekyun Kim, Dongjin Byun
Summary: In this study, a polished plateau-patterned sapphire substrate (PP-PSS) was developed for the epitaxial growth of stress-free GaN microrods. By adjusting the polishing time, selective growth of GaN microrods was achieved on the plateau region of the substrate. The growth mechanism and crystal structure of the GaN microrods were characterized, confirming the feasibility of stress-free epitaxial growth on PP-PSS.
Article
Chemistry, Physical
Kusdianto Kusdianto, Meditha Hudandini, Dianping Jiang, Masaru Kubo, Manabu Shimada
Summary: Ag-TiO2 nanocomposite films were fabricated using a one-step aerosol route, and the effects of different heating rates on photocatalytic performance were studied. Results showed that increasing the heating rate led to improved photocatalytic activity due to increased surface area and total pore volume.
Article
Chemistry, Physical
Qingyuan Luo, Ronghuo Yuan, Yan-Ling Hu, Defa Wang
Summary: InxGa1-xN nanowires with core/shell structure grown on n-type Si substrate by Ni-assisted CVD method were studied for their photocatalytic properties. Thicker GaN shell was found to reduce photoactivity, and a strategy to improve performance was proposed.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Meditha Hudandini, Nurdiana Ratna Puri, Sugeng Winardi, Widiyastuti Widiyastuti, Manabu Shimada, Kusdianto Kusdianto
Summary: The treatment of wastewater from the textile industry is an important environmental issue, and photodegradation is considered a promising method for its mitigation. This study demonstrates that the loading of Ag onto ZnO enhances its catalytic activity and achieves optimal photodegradation results at a carrier gas ratio of 0:1.
Article
Chemistry, Multidisciplinary
Diane Samelor, Asiya Turgambaeva, Vladislav Krisyuk, Adeline Miquelot, Jeremy Cure, Sergey Sysoev, Sergey Trubin, Pavel Stabnikov, Jerome Esvan, Vassilios Constandoudis, Constantin Vahlas
Summary: The study investigated the use of two solid precursors for the chemical vapor deposition of TiO2 films, revealing differences in film structure and photocatalytic performance between the two precursors.
Article
Engineering, Chemical
Miao Song, Yafeng Yang, Maoqiao Xiang, Qingshan Zhu, Hongdan Zhao
Summary: The conventional CVD process to fabricate high quality TiC powders faces challenges due to the low conversion rate of TiCl4. To address this issue, TiCl3 was proposed as a precursor and a fluidized bed reactor was utilized to enhance homogeneous nucleation, resulting in the successful fabrication of high purity nanosized TiC powders.
Article
Chemistry, Multidisciplinary
Hai-Quan Liu, Cheng-Bao Yao, Yu Cai, Hai-Tao Yin
Summary: The Ag-ZnO sandwich structure with columnar, cylinder and scallops-shaped has been successfully synthesized. X-ray diffraction analysis confirmed the presence of hexagonal wurtzite ZnO and face-centered cubic Ag in the structure. The growth mechanism was explained by vapor-liquid-solid mechanism. The photoluminescence spectrum showed an enhanced visible emission intensity, indicating the injection effect of Ag core. The excellent photodegradation activity of the Ag-ZnO sandwich structure is attributed to the synergistic effects of large surface area, unique ohmic contact, and electron transfer in the bandgap structure.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Physical
Yongchen Wang, Hawi N. Nyiera, Ann W. Mureithi, Yonglei Sun, Tomoyasu Mani, Jing Zhao
Summary: Hybrid metal-semiconductor nanostructures, particularly Ag-CdS nanorods, have been synthesized and employed as photocatalysts for methyl orange degradation. The catalytic efficiency was found to be length-dependent, with the highest efficiency observed in nanorods of intermediate length. The study also revealed insights into the charge separation-recombination pathway in these nanorods, contributing to a better understanding of their catalytic mechanism.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Mohammed M. Gomaa, Mohamed H. Sayed, Mahmoud S. Abdel-Wahed, Mostafa Boshta
Summary: A single-phase and crystalline NiS2 nanoflake layer was successfully produced by a two-step growth process. The NiS2 layer exhibited good solar light photocatalytic activity, making it a promising material for organic pollutant degradation.
Article
Engineering, Environmental
Hongyun Niu, Yongliang Yang, Weijia Zhao, Hongzhou Lv, Hui Zhang, Yaqi Cai
Summary: The synthesized Fe7S8/Fe3O4@Fe nanohybrids exhibit strong reducibility and improved oxidative ability. Unlike sulfurized ZVI prepared with hydrothermal or solvothermal methods, the Fe7S8 coating retards the increase of solution pH and enhances the efficiency of photocatalytic degradation of organic pollutants.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Veronica Montes-Garcia, Marco A. Squillaci, Marta Diez-Castellnou, Quy Khac Ong, Francesco Stellacci, Paolo Samori
Summary: Noble metal nanoparticles are ideal materials for sensor fabrication, enabling high sensitivity and selectivity, and can be used for environmental and health monitoring.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Yufu Zhu, Jiaying Yan, Lei Zhou, Liangdong Feng
Summary: This paper demonstrates the synthesis of rhombic ZnO microrods surrounded by ZnO nanorods on zinc foils using a hydrothermal method. Photocatalytic degradation of Rhodamine B solution was employed to evaluate the photocatalytic performance of the fabricated samples. The hierarchical micro/nanostructures formed by ZnO nanorods surrounding the surfaces of rhombic ZnO microrods exhibited superior photocatalytic performance compared to rhombic Zn(OH)F and ZnO microrods. The enhanced performance can be attributed to the larger surface area of the hierarchical ZnO micro/nanostructures. Additionally, the ZnO nanorods grown on the rhombic ZnO microrods demonstrated recyclability and relatively stable photocatalytic performance.
Article
Materials Science, Multidisciplinary
Svetlana I. Dorovskikh, Evgeniia S. Vikulova, David S. Sergeevichev, Tatiana Ya. Guselnikova, Ilya V. Korolkov, Anastasiya D. Fedorenko, Dmitriy A. Nasimov, Maria B. Vasilieva, Elena V. Chepeleva, Kseniya V. Zherikova, Tamara V. Basova, Natalya B. Morozova
Summary: This work develops approaches to create multifunctional film heterostructures based on noble metals, which are used to modify the surface of implant materials. The heterostructures consist of continuous layers of platinum or iridium with antibacterial components such as silver and gold on their surface. The influence of the concentration and form of the antibacterial component on the antibacterial activity and in vivo biocompatibility was evaluated, providing insights into the nature of the antibacterial action of the heterostructures. Histological studies demonstrated that the Ag/M heterostructure with prolonged release of a low fraction of antibacterial component showed the best biocompatibility.
Article
Chemistry, Multidisciplinary
ZabnAllah M. Alaizeri, Hisham A. Alhadlaq, Saad Aldawood, Mohd Javed Akhtar, Mabrook S. Amer, Maqusood Ahamed
Summary: This study synthesized and characterized pure and silver (Ag)-doped MgO NPs, and evaluated their photocatalytic activity and biocompatibility. The results showed that Ag-doped MgO NPs exhibited higher degradation of methylene blue dye under UV irradiation compared to pure MgO NPs, and displayed good biocompatibility with human normal umbilical vein endothelial cells (HUVECs).
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.