Article
Engineering, Chemical
Halyna Bubela, Viktoriia Konovalova, Joanna Kujawa, Iryna Kolesnyk, Anatoliy Burban, Wojciech Kujawski
Summary: Polyvinylidene fluoride (PVDF) is widely used for membrane separation in water and wastewater treatment. However, its hydrophobic nature leads to fouling problems. This study focuses on modifying PVDF membranes with iron (II, III) oxide nanoparticles (NPs) to improve their hydrophilicity and transport properties. The modified PVDF membrane showed a reduced contact angle and increased mass transport coefficient, leading to enhanced water permeability and prevention of protein fouling.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Agronomy
Zhenwei Tong, Hongwen Li, Jin He, Qingjie Wang, Caiyun Lu, Chao Wang, Guangyuan Zhong, Dandan Cui, Dengkun Li
Summary: A direct-injection straw deep-burial method was proposed using an in situ soil-lifting shovel. The effects of various factors on the operational performance were analyzed and optimized. The experiment showed that the method met agronomic requirements.
Article
Pharmacology & Pharmacy
Chun-Wan Yen, Robert Kuhn, Chloe Hu, Wei Zhang, Po-Chang Chiang, Jacob Z. Chen, Jonathan Hau, Alberto Estevez, Karthik Nagapudi, Dennis H. Leung
Summary: Spray dried amorphous solid dispersions (ASDs) are an effective formulation strategy for low water solubility, with recent focus on the formation of ASD nanoparticles. The inclusion of surfactants in ASDs can promote nanoparticle formation, while externally added surfactants have limited effectiveness. Different surfactants can impact ASD nanoparticle formation.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2021)
Article
Multidisciplinary Sciences
Saba Hemmati, Majid M. Heravi, Bikash Karmakar, Hojat Veisi
Summary: A new and efficient catalyst, GO/Fe3O4@PDA/Au, has been designed for the reduction of nitroarenes to substituted anilines. The catalyst's structure and performance were thoroughly characterized by various analytical techniques, demonstrating excellent catalytic activity and recyclability.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Meng Z. Chen, Che Y. Chu, Bradley W. Mansel, Po C. Chang
Summary: This study investigated the dependence of nanoparticle dispersion in nanocomposites on zero-conversion initiator efficiency. Higher efficiency led to network structures, while lower efficiency resulted in small aggregates. Moderate efficiency produced large aggregates.
Article
Engineering, Environmental
Zhenliang Feng, Rongjian Wan, Shiming Chen, Xiao Tang, Hong Ju, Yan Li, Guang-Ling Song
Summary: This study successfully achieved the in-situ repair of organic anti-corrosion coatings under seawater by preparing and modifying magnetic Fe3O4 nanoparticles, enhancing adhesion strength and preventing the formation of micro-channels.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Ceramics
Qiuwan Shen, Zhongwen Cai, Gaokui Chen, Xin Zhang, Shian Li, Guogang Yang
Summary: In this study, the synthesis process parameters of CuFe1.2Al0.8O4 catalysts in methanol steam reforming were optimized using orthogonal experiment. The influence of precursor copper source, calcination temperature, calcination time, and complexing agent on catalytic performance was investigated. The results showed that copper source had the greatest impact, with copper hydroxide as the best precursor. The optimal synthesis conditions were determined to be using copper hydroxide as the precursor copper source, calcination time of 2 hours, complexing agent of ethanol and ethylene glycol, and calcination temperature of 700 degrees C. The CuFe1.2Al0.8O4 catalyst showed excellent catalytic performance for hydrogen production in methanol steam reforming.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Hengli Xiang, Genkuan Ren, Yanjun Zhong, Dehua Xu, Zhiye Zhang, Xinlong Wang, Xiushan Yang
Summary: Fe3O4@C nanoparticles were prepared by an in situ, solid-phase reaction using FeSO4, FeS2, and PVP K30 without any precursor. These nanoparticles showed high adsorption capacity and improved removal efficiency of methylene blue with the use of H2O2 as an initiator. The Fe3O4@C nanoparticles retained high catalytic activity after multiple usage cycles.
Article
Construction & Building Technology
Zhangfan Jiang, Mert Atilhan, Osman E. Ozbulut
Summary: Graphene and its derivatives have been investigated as nano-reinforcements in cement-based composites to enhance their mechanical, transport and durability properties. However, the agglomeration effect caused by the strong van der Waals force between graphene sheets hinders the uniform dispersion of graphene, limiting its effectiveness. This study aims to find an optimal dispersion process for incorporating graphene nanoplatelets (GNPs) into cement-based composites. Surfactant-assisted sonication was used to disperse graphene sheets, and various factors such as sonication amplitude, duration, sample volume, surfactant type, and surfactant-to-GNP ratio were studied for their effects on dispersion performance.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Sila Jin, Eungyeong Park, Shuang Guo, Yeonju Park, Lei Chen, Young Mee Jung
Summary: The Au-decorated Fe3O4@TiO2 nanoparticles exhibit excellent photocatalytic and SERS activities, showing significant photolysis effects on methyl orange. They demonstrate more efficient catalysis than Fe3O4@TiO2 NPs, with the Au-decorated TiO2 having surface plasmon resonance effects.
Article
Polymer Science
Ismail A. Walbi, Mohammad Zaki Ahmad, Javed Ahmad, Mohammed S. Algahtani, Amer S. Alali, Samar A. Alsudir, Alhassan H. Aodah, Hassan A. Albarqi
Summary: In this study, Curcumin-loaded lecithin-chitosan nanoparticles were developed and optimized using a statistical design. The optimized formulation showed small particle size, good stability, high entrapment efficiency, and controlled release, making it suitable for high loading and controlled release of lipophilic drugs.
Article
Chemistry, Multidisciplinary
Chengyu Tu, Xuan Li, Congcong Lu, Qiao Luo, Tie Li, Maiyong Zhu
Summary: In this study, a three-step sequential process was developed to synthesize Fe3O4@MnO2 hollow nanospheres, which exhibited superior electrochemical performance for supercapacitors. The as-prepared material showed high capacity, large energy density, and excellent charge-discharge durability, making it a promising alternative for energy storage and electrocatalysis applications.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Engineering, Chemical
Lalith Kotamarthy, Rohit Ramachandran
Summary: This study aims to improve the mechanistic understanding of the effect of process and screw parameters on the mixing dynamics inside a twin-screw granulator using dispersion coefficient as a key metric. The developed semi-mechanistic model accurately predicts dispersion coefficient values and is able to estimate and predict the RTD curves. The goodness-of-fit values for the model were found to be high, with R-2 values of 0.920 for the test set and 0.932 for the full data set.
Article
Construction & Building Technology
Bao Liu, Han Zhou, Ganghua Pan, Haining Meng, Dongxu Li
Summary: CSH nanoparticles can be used as ideal nucleation substrates for hydration products, but achieving good dispersion in the matrix is challenging. This study presents a novel method for in-situ growing CSH nanoparticles on the surface of iron tailings powder particles, which allows precise control over the growth amount and Ca/Si ratio of CSH. The results show that the dispersion of CSH nanoparticles can be improved by using the inert iron tailings powder admixture, leading to enhanced properties of the modified cement.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Engineering, Chemical
Chia-Chang Lin, Yu-Po Lai, Kuan-Yi Wu
Summary: Fe3O4 nanoparticles were mass-produced using a rotating packed bed (RPB), resulting in particles with smaller size and higher adsorption capacity. The RPB overcomes the challenge of mass-production in traditional batch processes by providing excellent micromixing, allowing for efficient production with a low molar ratio of OH- to Fe2+.
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)