Article
Engineering, Environmental
Jinhai Li, Chenyu Wang, Jianhai Zhou, Zhang Ping, Guopei Huang, Yuanhui Wu, Shuxing Luo, Dongmei Bao, Zhu Wen, Pili Lu
Summary: In this study, a novel Bi2O2(OH)NO3-BiVO4 heterogeneous composite was successfully constructed and synthesized by a mild and convenient hydrothermal method. The as-synthesized composite exhibited good surface properties and catalytic stability, and significantly enhanced the photocatalytic degradation capacity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Norah Alhokbany, Tansir Ahamad, Jahangeer Ahmed, Saad M. Alshehri
Summary: A novel SrTiO3/Ag2O-NDC nanocomposite was fabricated as a photocatalyst for the degradation of DDT under visible light, showing high catalytic efficiency. The role of photo-generated species and the degradation mechanism were determined through experiments and calculations.
Article
Chemistry, Physical
C. Mrabet, R. Jaballah, N. Mahdhi, A. Boukhachem, M. Amlouk
Summary: The formation of heterojunctions is commonly used to enhance photocatalytic efficiency. In this study, the photocatalytic activity of CuO-ZnO nanocomposite thin films was investigated and found to be greater than that of individual semiconductors. The produced nanocomposite thin films might be beneficial for environmentally friendly and energy-saving wastewater treatment.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Victor V. Petrov, Victor V. Sysoev, Irina O. Ignatieva, Irina A. Gulyaeva, Maria G. Volkova, Alexandra P. Ivanishcheva, Soslan A. Khubezhov, Yuri N. Varzarev, Ekaterina M. Bayan
Summary: Thin nanocomposite films of Co3O4-ZnO were synthesized by solid-phase pyrolysis. The films show a wurtzite phase of ZnO and a spinel structure of Co3O4. Increasing annealing temperature and Co3O4 concentration result in larger crystallite sizes. The optical properties and charge carrier mobility of the films are influenced by the Co3O4 content. Photosensors based on the films exhibit enhanced photoresponse in specific wavelength ranges.
Article
Chemistry, Multidisciplinary
A. A. Muleja, M. P. Mubiayi, F. Hassard, B. B. Mamba
Summary: This study investigated the photocatalytic activity of natural clay mixed with carbon nanotubes for removal of brilliant black in wastewater. The addition of CNT significantly enhanced the degradation of BB under visible light irradiation. The presence of CNT reduced the recombination of e(-) and h(+) pairs and promoted the production of reactive oxygen species, resulting in effective removal of BB carbon content.
JOURNAL OF NANOPARTICLE RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Huan-Yan Xu, Li-Yuan Dai, Lu Zhang
Summary: The coupling of photocatalysis with persulfate-based oxidation is considered a promising strategy for increasing the overall reaction efficiency for organic pollutants removal, with the design of an appropriate semiconductor heterojunction being key. In this study, a p-n heterojunction was fabricated by combining p-type semiconductor BiOI with n-type Fe3O4, resulting in significantly accelerated degradation of high concentration Rhodamine B under visible light illumination. The high activity, stability, and magnetic properties of this heterojunction pave the way for practical applications.
Article
Engineering, Environmental
Yangqing He, Jing Shi, Qian Yang, Yu Tong, Zhanying Ma, Lucas Binnah Junior, Binghua Yao
Summary: In this study, a new GaN-based photocatalyst with strong visible-light absorption and long-term stability was successfully synthesized and demonstrated remarkable efficiency in treating antibiotic-contaminated wastewater. The research provides a promising solution for the practical treatment of antibiotic pollution.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Chao Chen, Deyang Chen, Peilian Li, Minghui Qin, Xubing Lu, Guofu Zhou, Xingsen Gao, Jun-Ming Liu
Summary: An approach to selectively control 71 degrees ferroelastic and 180 degrees ferroelectric switching paths in multiferroic BiFeO3 thin films with periodically ordered 71 degrees domain wall is reported. Four-state polarization states can be deterministically achieved and reversibly controlled through precisely selecting different switching paths. These studies reveal the ability to obtain multiple polarization states for the realization of multi-state memories and magnetoelectric coupling-based devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Veena Sodha, Syed Shahabuddin, Rama Gaur, Irfan Ahmad, Rajib Bandyopadhyay, Nanthini Sridewi
Summary: Access to clean water is essential for humans and animals, but water scarcity and contamination are global challenges. Wastewater contains pollutants that can cause health issues and environmental damage. Zeolites, with their adsorption and ion-exchange properties, have been used for pollutant removal, and their photocatalytic efficiency can be enhanced by doping with other materials.
Article
Chemistry, Multidisciplinary
Xiaoqian Ai, Shun Yan, Chao Lin, Kehong Lu, Yujie Chen, Ligang Ma
Summary: CeO2@ZnO nanocomposites were prepared by pyrolyzing Ce@Zn metal-organic frameworks, which showed improved photocatalytic performance due to the formation of a nanoheterojunction structure. The effects of the Zn:Ce ratio on the microstructure, morphology, and optical properties of the nanocomposites were studied. The prepared photocatalysts exhibited higher photocatalytic activity than previously reported CeO2@ZnO nanocomposites, suggesting their potential in environmental remediation.
Article
Chemistry, Physical
Stefano Mazzanti, Giovanni Manfredi, Alex J. Barker, Markus Antonietti, Aleksandr Savateev, Paolo Giusto
Summary: The innovative approach of using carbon nitride thin films as photoreactors allows for improved photophysical properties of the material and maximizes its performance in photocatalytic reactions, showing significantly higher activity compared to suspended particles.
Article
Materials Science, Multidisciplinary
Yee Wen Teh, Cheng-May Fung, Michell K. T. Chee, Jingxiang Low, Siek-Ting Yong, Siang-Piao Chai
Summary: Photocatalysts with atomic dimensions demonstrate superior performance in photocatalytic applications due to their large surface-to-volume ratio, enormous surface active sites, and superior light harvesting ability. The single-unit-cell thickness reduces interlayer charge transfer resistance, facilitating rapid transfer of electrons and holes from the interior to the surface.
Article
Chemistry, Inorganic & Nuclear
Yongmin Chen, Shulan Pu, Dongying Wang, Yongchao Zhang, Guojiang Wan, Qiang Zhao, Yan Sun
Summary: AgBr@ZIF-8 composites were synthesized by coupling Zeolitic imidazolate framework-8 (ZIF-8) with AgBr using a deposition-precipitation method. The photocatalytic activity of the composites was evaluated through the degradation of Rhodamine B (RhB). The AgBr@ZIF-8 photocatalysts showed superior photocatalytic activity compared to ZIF-8 and AgBr, with AgBr@ZIF-8 containing 5 wt% ZIF-8 exhibiting the highest efficiency of 99.5% within 15 minutes. The enhanced photocatalytic efficiency of AgBr@ZIF-8 composites was attributed to the heterojunction between ZIF-8 and AgBr, reducing the recombination rate of electron-hole pairs. Superoxide radicals (center dot O2-) and holes (h+) were identified as the main species responsible for the efficient removal of RhB according to trapping experiments.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Bakhitah M. Alajmi, Amal S. Basaleh, Adel A. Ismail, Reda M. Mohamed
Summary: In this study, PdO/ZrO2 nanocomposites incorporating mesoporous ZrO2 were successfully synthesized through a sol-gel process. The obtained mesoporous ZrO2 exhibited a large surface area and the desulfurization efficiency of 1.5% PdO/ZrO2 photocatalyst was significantly higher than that of bare ZrO2 NPs. The enhanced photocatalytic activity of PdO/ZrO2 can be attributed to the mesostructured ZrO2 providing active sites and improving light absorption, as well as the accelerated mobility and separation of photoinduced carriers in the S-scheme heterojunction.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Mengmeng Lun, Xunsheng Zhou, Shanshan Hu, Ying Hong, Baolong Wang, Aihua Yao, Wei Li, Benli Chu, Qinyu He, Jun Cheng, Yinzhen Wang
Summary: K0.5Na0.5NbO3 (KNN) particles with orthorhombic perovskite structure were prepared by a solid-state method and can be used as ferroelectric catalysts for degrading organic pollutants. Poled KNN particles showed significantly enhanced catalytic activity under an applied electric field, with a degradation ratio of rhodamine B dye reaching 92% after 60 min.
CERAMICS INTERNATIONAL
(2021)
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.