Article
Chemistry, Physical
Nailma de Jesus Martins, Isabel C. H. Gomes, Gelson T. S. T. da Silva, Juliana A. Torres, Waldir Avansi, Caue Ribeiro, Andrea R. Malagutti, Henrique A. J. L. Mourao
Summary: The research explores an effective method for synthesizing ZnO:g-C3N4 heterostructures, which can potentially play a significant role in drug degradation and CO2 conversion by improving the stability of heterostructures and the separation of photogenerated charge carriers, thus increasing the photocatalytic efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
B. L. Choudhary, Namita Kumari, Jyoti Kumari, Arvind Kumar, S. N. Dolia
Summary: This paper discusses the relaxation mechanism at a lower temperature in the Ni0.5Zn0.5Fe2O4 sample prepared using the sol-gel method. The crystal structure and elemental composition were analyzed using XRD and EDAX techniques, revealing a decrease in magnetic domain size with increasing temperature and supporting relaxation at lower temperatures.
Article
Chemistry, Physical
Masoud Emami Mehr, Hossein Maleki-Ghaleh, Mohadeseh Yarahmadi, Majid Kavanlouei, M. Hossein Siadati
Summary: In this study, core/shell ZnO/TiO2 nanocomposite samples were prepared using the sol-gel method at different time spans. The sample prepared in the 15-minute time span (ZnTi15) exhibited the highest photocatalytic activity and charge carrier density, making it the optimal sample. The formation of a heterojunction at the ZnO/TiO2 interface could be attributed to the increased photocurrent density observed for the ZnTi15 sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Shima Khosravani, Fatemeh Hajakbari, Alireza Hojabri
Summary: In this study, the effect of annealing temperature on the properties of undoped and Ni-doped SnO2 films was investigated. The films exhibited a tetragonal structure with nanocrystals and good adhesion to the substrate. The sensing response of Ni-doped SnO2 gas sensors was influenced by annealing temperature, with the best response observed at 500°C.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Environmental
Ewelina Weidner, Beata Kurc, Bogdan Samojeden, Marita Piglowska, Agnieszka Kolodzicjczak-Radzimka, Teofil Jesionowski, Filip Ciesielczyk
Summary: This study successfully fabricated zinc oxide enriched with vanadium (ZnO/V) and evaluated its performance in SCR catalysis and electrochemical applications. The results showed that ZnO/V exhibited good crystallinity, high surface area, and high conversion rate of nitrogen oxides. It also demonstrated the potential to be used as a feed material in lithium-ion batteries.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
S. Goswami, P. Gupta, S. Bedanta, M. Chakraborty, D. De
Summary: This article reports exchange bias (EB) and memory effect in nanocrystalline CoCr2O4, with results showing that these effects are caused by inherent magnetic inhomogeneity rather than surface effects.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Koji Abe, Yasuhiro Morimoto
Summary: The post-annealing with supplying Zn vapor improved the crystallinity and electrical properties of Al-doped MgxZn1-xO films. Films treated with a Zn cap during post-annealing showed significantly increased resistivity and carrier concentration, with an optical bandgap of 3.41 eV.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Materials Science, Ceramics
Fatma Aydin Unal, Murat Unal, Tugce Ataser, Sueleyman Ozcelik
Summary: In this paper, the synthesis of undoped ZnO and 5 wt % Gd/K co-doped ZnO compounds is introduced to improve photocatalytic activity. The samples are studied using various techniques and the photocatalytic activity is tested. The results show that 5% Gd/K co-doped ZnO exhibits higher photocatalytic activity than undoped ZnO.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Koji Abe, Tasuku Kubota
Summary: Al-doped ZnO (AZO) films were prepared by sol-gel method using precursor solutions containing oxygen sources. Zinc vacancy acceptors were formed under oxygen-rich growth conditions. Glass substrates with a zinc layer were used to supply zinc to the AZO films during calcination annealing. The AZO films showed wurtzite ZnO crystal structure and high transparency. The electrical properties of the films were improved by using substrates with a zinc layer, achieving a low resistivity of 9.4 x 10(-4) Ocm.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Yue Jiang, Qiushuo Mao, Tianhao Ma, Xiaoguang Liu, Yan Li, Shubin Ren, Jialin Sun
Summary: A porous Fe2O3 Al2O3 composite was designed to remove the harmful dye Congo red (CR) from water, showing high specific surface areas and efficient CR adsorption behavior influenced by factors such as pH, initial concentration, and contact time. The adsorption process followed intra-particle diffusion, pseudo-second-order kinetic, and multi-layer adsorption, with decent magnetic properties for recycling.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Han Wang, Yujie Ma, Yanchao Shen, Cancan Zhang, Jiazhi Yang, Pingyun Li
Summary: In this study, Co3O4/N-doped carbon materials and Co-Co3O4/N-doped carbon materials were prepared using the sol-gel method. Calcination and acid-base inhibition were employed to enhance the catalytic performance of the materials. The materials prepared using ethylene glycol and glycerol exhibited excellent catalytic activity in the hydrogenation reduction reaction. Additionally, using acrylamide as the source of carbon and nitrogen resulted in highly active Co-Co3O4/NC nanocatalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Joelle Medinger, Miroslava Nedyalkova, Marco Furlan, Thomas Luthi, Jurgen Hofmann, Antonia Neels, Marco Lattuada
Summary: In this study, composite materials mimicking the structure of nacre were prepared by synthesizing a silica gel skeleton with a layered structure and filling the porous structure with a monomer to form a soft elastomer. The mechanical properties of the nacre-like composite material far exceeded those of nonstructured composite materials with an identical chemical composition, showing increased toughness and nearly 10-fold increase in Young's modulus. Pattern recognition and multivariate statistical analysis were used to identify the physical and chemical parameters influencing the mechanical properties of the monoliths.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Inorganic & Nuclear
Hui Dan, Li Chen, Zhen Li, Xinmiao He, Yi Ding
Summary: Amorphous ZrO2 powders were successfully prepared using a novel hydrothermal-assisted sol-gel method. The obtained powders exhibited features of small and uniform particle size, as well as high purity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Physics, Condensed Matter
Thanit Tangcharoen
Summary: In this study, nanocrystalline non-magnetic ion-doped zinc oxide powders were synthesized and investigated using various techniques. The introduction of magnesium and calcium ions resulted in the formation of hexagonal solid MgZnO and CaZnO, as well as composites of Mg/ZnO, CaO/ZnO, and Al2O3/ZnO without impurity phases. The modified samples showed improved textural properties and higher bandgap energy compared to the pure sample. Furthermore, the emission bands in the photoluminescence spectra showed significant changes in intensity as the concentration of non-magnetic ions increased. VSM results revealed the adjustment of zinc oxide's diamagnetism to paramagnetism and ferromagnetism through the introduction of non-magnetic ions.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Materials Science, Multidisciplinary
Shuo Qian, Enhui Bao, Huiyu Chen
Summary: ZnO microflowers consisting of porous nanosheets were synthesized by hydrothermal reaction and subsequent annealing at 300 degrees C. Characterization through XRD, SEM, TEM, and N-2 adsorption-desorption test revealed that the ZnO microflowers had a size of about 6 mu m, a surface area of 58.6 m(2)/g, an average pore size of 14.1 nm, and a size distribution centered at 15.1 nm. The hydrothermal temperature played a crucial role in determining the shape and size of the ZnO products. These ZnO microflowers with porous structure and large surface area show potential applications in gas sensors, photo-catalysis, electrochemical energy storage, and more. The synthetic method presented here is simple, cost-effective, and can be extended to the preparation of other metal oxides with controlled structures.
Article
Environmental Sciences
Tassia R. T. Santos, Murilo B. Andrade, Marcela F. Silva, Rosangela Bergamasco, Safia Hamoudi
ENVIRONMENTAL TECHNOLOGY
(2019)
Article
Environmental Sciences
Gustavo Affonso Pisano Mateus, Tassia Rhuna Tonial dos Santos, Isabela Sperandino Sanches, Marcela Fernandes Silva, Murilo Barbosa de Andrade, Michele Putti Paludo, Raquel Guttierres Gomes, Rosangela Bergamasco
ENVIRONMENTAL TECHNOLOGY
(2020)
Article
Environmental Sciences
Flavia Sayuri Arakawa, Quelen Leticia Shimabuku-Biadola, Marcela Fernandes Silva, Rosangela Bergamasco
ENVIRONMENTAL TECHNOLOGY
(2020)
Article
Engineering, Chemical
Flavia Sayuri Arakawa, Quelen Leticia Shimabuku-Biadola, Simone de Lima Bazana, Marcela Fernandes Silva, Benicio Alves de Abreu Filho, Rosangela Bergamasco
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2019)
Article
Environmental Sciences
Maryam Khodadadi, Tariq J. Al-Musawi, Hossein Kamani, Marcela Fernandes Silva, Ayat Hossein Panahi
Article
Environmental Sciences
Carole Silveira, Quelen Leticia Shimabuku-Biadola, Marcela Fernandes Silva, Marcelo Fernandes Vieira, Rosangela Bergamasco
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Environmental Sciences
Gessica Wernke, Quelen Leticia Shimabuku-Biadola, Tassia Rhuna Tonial Dos Santos, Marcela Fernandes Silva, Marcia Regina Fagundes-Klen, Rosangela Bergamasco
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Materials Science, Biomaterials
Marina Baccarin, Mariani A. Ciciliati, Osvaldo N. Oliveira, Eder T. G. Cavalheiro, Paulo A. Raymundo-Pereira
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2020)
Article
Materials Science, Multidisciplinary
Jessica de Lara Andrade, Angelica Goncalves de Oliveira, Leonardo Sobreira Rodrigues, Mychelle Vianna Pereira Companhoni, Celso Vataru Nakamura, Sandro Marcio Lima, Luis Humberto da Cunha Andrade, Luiz Fernando Cotica, Ana Adelina Winkler Hechenleitner, Edgardo Alfonso Gomez Pineda, Daniela Martins Fernandes de Oliveira
Summary: Zn-doped Al2O3 nanoparticles were synthesized by a modified sol-gel method, and the influence of Zn2+ dopant on the crystal lattice, morphology, optical, and cytotoxic properties of Al2O3 was investigated. The study found changes in unit cell volume, vibrational bonds, and photoluminescence emission in the Al2O3-Zn nanoparticles, with no cytotoxic effects observed on fibroblast cells.
BULLETIN OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Angelica Goncalves Oliveira, Jessica de Lara Andrade, Maiara Camotti Montanha, Camilla Yara Langer Ogawa, Thabata Karoliny Formicoli de Souza Freitas, Juliana Carla Garcia Moraes, Francielle Sato, Sandro Marcio Lima, Luis Humberto da Cunha Andrade, Ana Adelina Winkler Hechenleitner, Edgardo Alfonso Gomez Pineda, Daniela Martins Fernandes de Oliveira
Summary: The Mg-doped ZnO nano-semiconductors showed improved photocatalytic activity for degrading pollutants in untreated laundry wastewater. The increase in Mg ion contents enhanced photocatalytic efficiency by promoting oxygen vacancies and reducing recombination rates of electron-hole pairs. Additionally, the treated wastewater exhibited reduced phytotoxicity and could potentially be reused for irrigation due to the non-toxicity and high efficiency of the nanomaterials.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Environmental Sciences
Jessica de Lara Andrade, Cezar Augusto Moreira, Angelica Goncalves Oliveira, Camila Fabiano de Freitas, Maiara Camotti Montanha, Ana Adelina Winkler Hechenleitner, Edgardo Alfonso Gomez Pineda, Daniela Martins Fernandes de Oliveira
Summary: Rice husks are an abundant agricultural residue rich in silicon, which can be extracted for the production of high-value materials. Mesoporous silica nanoparticles synthesized from rice husks show potential applications in drug delivery systems, with promising results in cancer therapy. The eco-friendly MSNs are not cytotoxic for healthy cells and exhibit high encapsulation efficiency and release rate for chemotherapeutic drugs.
WASTE AND BIOMASS VALORIZATION
(2022)
Article
Energy & Fuels
Murilo Barbosa Andrade, Tassia Rhuna Tonial Santos, Ana Carolina Sestito Guerra, Marcela Fernandes Silva, Gabriela Maria Matos Demiti, Rosangela Bergamasco
Summary: This study developed a new adsorbent material GO#α-γ-Fe2O3Co3O4, which showed high efficiency and excellent regenerative capacity in caffeine adsorption experiments. Thermodynamic parameters indicated that caffeine adsorption process is exothermic, spontaneous, and favorable. Ion competition experiments found that Na+, K+, Ca2+, and Mg2+ ions do not interfere with the adsorption process.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Chemistry, Physical
Gessica Wernke, Marcela Fernandes Silva, Edson Antonio da Silva, Marcia Regina Fagundes-Klen, Pedro Yahico Ramos Suzaki, Carina Contini Triques, Rosangela Bergamasco
Summary: Improper disposal of pharmaceutical products has led to antibiotics contaminating water resources, necessitating efficient methods for removal. This study investigated three different adsorbents for removing cephalexin antibiotic from aqueous solutions, and found that CA-NPsAg/CuO performed best at low concentrations.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Multidisciplinary
Leonardo Sobreira Rodrigues, Artur Falqueto Sonsin, Cintya D' Angeles do Espirito Santo Barbosa, Daniela Martins Fernandes de Oliveira, Eduardo Jorge da Silva Fonseca, Camila Braga Dornelas, Adriana Santos Ribeiro, Ligia Maria Manzine Costa
Summary: The luminescent properties of carbon dots (CDs) were studied under different reaction times, showing that the reaction time significantly affects the emission behavior of CDs. The study presented a novel method for synthesizing CDs using red propolis wax and explored the impact of reaction time on the photoluminescence properties of CDs.
JOURNAL OF NANOPARTICLE RESEARCH
(2021)
Article
Engineering, Environmental
Ana Carolina de Lima Barizao, Marcela Fernandes Silva, Murilo Andrade, Fernanda Caroline Brito, Raquel Guttierres Gomes, Rosangela Bergamasco
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
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.
