Article
Chemistry, Physical
A. Dutta, B. Pihuleac, Y. Chen, C. Zong, L. Dal Negro, C. Yang
Summary: The use of CSS plasmonic nanoparticles has shown significant enhancement in the photocatalytic performance of PEC photoanodes using hematite as a testing system. The optimized CSS NPs have demonstrated double resonance peaks and spatially uniform electric field distributions, resulting in improved photocurrent density and potential for increasing carrier generation in hematite photoelectrocatalytic systems.
MATERIALS TODAY ENERGY
(2021)
Article
Biochemical Research Methods
Haixin Guo, Xiaoping Su, Qingfu Su, Wei Zhuang, Zhijiao You
Summary: A portable photothermal immunoassay based on Au-coated magnetic Fe3O4 core-shell nanohybrids was developed for point-of-care testing of Lp-PLA2, showing good photothermal responses and a low detection limit. The method demonstrated high accuracy for analysis of human serum samples.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Green & Sustainable Science & Technology
Chunlei Sun, Yuan Zou, Caiyan Qin, Meijie Chen, Xiaoke Li, Bin Zhang, Xiaohu Wu
Summary: The core-shell composite nanorod improves absorption efficiency in both the near-infrared and visible spectral regions, holding great potential for enhancing the performance of direct absorption solar collectors.
Article
Materials Science, Multidisciplinary
Samin Habibi, Steven Bryant, Roman Shor, Giovanniantonio Natale
Summary: The study focuses on creating monodisperse magnetic particles by depositing a magnetite layer on the surface of silica particles using a low-temperature electroless deposition technique. This technique, scalable and suitable for mass production, can be applied to a wide range of inorganic materials or polymer particles. The resulting SiO2@Fe3O4 core/shell particle is responsive to magnetic fields and shows promise for applications in magnetorheological fluids.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Green & Sustainable Science & Technology
Linzhuang Xing, Ruipeng Wang, Yuan Ha, Zhimin Li
Summary: This paper investigates the effect of morphological parameters and external factors on the optical properties and photothermal conversion of Fe3O4@Au core/shell nanoparticles.The results show that Fe3O4@Au core/shell nanoparticles with specific parameters exhibit optimal solar thermal conversion in direct absorption solar collectors (DASCs). Furthermore, Fe3O4@Au core/shell nanoparticles with specific parameters demonstrate excellent photothermal conversion performance. This research provides guidance for utilizing solar energy and controlling the photothermal distribution of nanofluids using Fe3O4@Au core/shell nanoparticles.
Article
Chemistry, Physical
Xuelian Lv, Zheng Fang, Yimin Sun, Yongsheng Yang, Xing Wang, Yazhou Chen, Yanmin Qin, Na Li, Chen Li, Jie Xu, Haifeng Bao
Summary: We synthesized multi-branched Fe3O4@Au core@shell nanocomposites through a template-free liquid-liquid interfacial growth reaction. The prepared magneto-plasmonic Fe3O4@Au core@shell nanocomposites exhibited excellent SPR absorption in the NIR region and demonstrated a high photothermal conversion efficiency, making them efficient photothermal agents for antibacterial applications. The results showed that the prepared core@shell nanocomposites could effectively kill bacteria under 980 nm laser irradiation and maintained good photo-stability after multiple photothermal bacteria killing. The development of high efficient antibacterial hybrid nanoparticles could have broad applications in therapy and medical devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Igor Kon, Andrey Zyubin, Ilia Samusev
Summary: The article presents the results of a mathematical modeling study on the electromagnetic field parameters near the surfaces of core-shell gold-based nanorods in the Au@SiO2 system. The study investigated the electric field parameters of different components and discussed their correlations with nanorod morphology and shell size parameters. The optical properties of the nanoobjects were also simulated and discussed.
Article
Chemistry, Physical
Jun Liao, Junfeng Qiu, Guohui Wang, Rongxiao Du, Natalia Tsidaeva, Wei Wang
Summary: In this study, a 3D ternary core-shell Fe3O4@SiO2@MoS2 composite was synthesized, showing remarkable enhancement in microwave absorption due to the synergistic effect of magnetic Fe3O4, dielectric SiO2, and MoS2. The specific structural design and interfacial construction play a key role in improving the performance of the composites in absorbing microwaves.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Optics
Naheda H. A-Jarah, Ahmed S. Wasfi, S. M. Hamidi
Summary: This study aims to control the performance of random lasers by using magneto-plasmonic Fe3O4@Au and Au@Fe3O4 core shell nanoparticles as scatterer points. The results show that the laser efficiency of the samples is improved when an external magnetic field is applied.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Chao Liu, Hui Wang, Shengmin Xu, Hongbao Li, Yilin Lu, Chuhong Zhu
Summary: In this study, Fe3O4@SiO2@Au three-layer core/shell nanoparticles were synthesized and modified with 4-mercaptopyridine to form a surface-enhanced Raman scattering (SERS) sensor. The sensor can easily capture mercury ions in water and evaluate their concentration based on the spectral changes of 4-mercaptopyridine. The SERS sensor shows good stability, accuracy, and anti-interference ability, and has the potential to detect actual samples.
Article
Thermodynamics
A. Chehaidar
Summary: This paper provides a detailed theoretical analysis of the temperature rise near magnetite/gold and magnetite/silver core/shell nanospheres submerged in water, using the Lorenz theory and the electrostatic-thermal transfer analogy approach. Localized surface plasmon resonances are found to be the most efficient in photothermal effect. Gold and silver nanospheres allow a significant, almost uniform temperature rise at their vicinities, with spectrally localized stimulating light at 389 nm and 535 nm, respectively. Magnetite/gold and magnetite/silver core/shell nanospheres also exhibit an important photothermal effect, with the interesting ability to tune the frequency of stimulating light from ultraviolet to near infrared by adjusting the global diameter and relative thickness of the nanosphere's shell. The distribution of temperature rise over the plasmonic shell-water interface becomes non-uniform for a decreasing relative shell thickness.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Chemistry, Physical
Zahra Izadiyan, Kamyar Shameli, Sin-Yeang Teow, Mostafa Yusefi, Pooneh Kia, Elisa Rasouli, Mohammad Ali Tareq
Summary: Nanoemulsions (NEs) were successfully formulated using Fe3O4/Au-core-shell nanoparticles based on Juglans regia extract, encapsulating 5-fluorouracil (5-FU) for potential colorectal cancer treatment. The NEs exhibited good colloidal stability and multifunctional features, showing time-delayed release behavior and increased release dosage in acidic media. 5-FU-loaded NEs demonstrated potent anticancer activity against HCT116 cancerous cells with low toxicity towards normal cells. Further studies are warranted to explore the potential of these NEs as anticancer drug carriers.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Physical
Juan Shi, Jinli Zheng, Ben Liang, Fengmin Song, Jin Wang, Shaobo Guo, Hongguang Ge, Yanhong Gao, Tianlei Zhang
Summary: Integrating metal nanocomposites into a matrix is a promising approach for improving material properties. In this study, Fe3O4@SiO2@mTiO2-NH2@Ag (FSTN-Ag) nanocomposites were synthesized and demonstrated high catalytic activity and antibacterial properties.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Chun-Rong Lin, Oxana S. Ivanova, Dmitry A. Petrov, Alexey E. Sokolov, Ying-Zhen Chen, Marina A. Gerasimova, Sergey M. Zharkov, Yaw-Teng Tseng, Nicolay P. Shestakov, Irina S. Edelman
Summary: Fe3O4@SiO2 core-shell nanoparticles were synthesized and functionalized for studying their magnetic, structural, and adsorption properties. The magnetic core of the nanoparticles showed nanocrystalline structure with an amorphous silica shell, and the nanoparticles exhibited high saturation magnetization. The adsorption studies on three dyes showed that the nanoparticles followed pseudo-second order kinetics and had maximum adsorption capacity for Congo red according to the Langmuir isotherm.
Article
Chemistry, Physical
A. Khalid, R. M. Ahmed, Mohamed Taha, T. S. Soliman
Summary: Magnetic iron oxide (Fe3O4) and Fe3O4 @SiO2 core-shell nanoparticles were prepared and their optical properties were studied. Three different methods were used to determine the optical gap energy of the nanoparticles, and it was found that Fe3O4 @SiO2 NPs have higher gap energy values compared to Fe3O4 NPs and SiO2 NPs. The Fe3O4 @SiO2 NPs also exhibited high values of optical oscillator strength and third-order nonlinear optical susceptibility, making them suitable for applications in nonlinear optics. The synthesized Fe3O4 @SiO2 core-shell nanomaterials with enhanced optical parameters are considered as promising candidates for nonlinear optical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)