Article
Chemistry, Physical
Qingyu Li, Wanmi Guo, Xiaotian Kong, Jiale Xu, Chunshan Xu, Yue'e Chen, Jing Chen, Xinyu Jia, Yi Ding
Summary: Electromagnetic interference is an urgent problem in society, and there is a need for efficient preparation of materials with excellent electromagnetic wave absorption. In this study, MnFe2O4/rGO/Diatomite (M/rGO/DT) cladding structure composites were prepared using a direct, one-step hydrothermal technique. The ternary composite exhibits multiple microwave absorption mechanisms and offers superior capabilities in low and medium frequency microwave absorption compared to unitary or binary composites. The composite demonstrates remarkable electromagnetic wave attenuation ability, suggesting that this research may provide an innovative and simple technique for the preparation of superior microwave absorbing materials (MAMs).
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Fatemeh Ebrahimi-Tazangi, Jamileh Seyed-Yazdi, Seyedeh Hoda Hekmatara
Summary: In this study, alpha-Fe2O3@CoFe2O4/GO magnetic nanocomposite was successfully synthesized and evaluated for its microwave absorption properties. The results showed that the material exhibited excellent absorption performance and has wide potential applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Wanmi Guo, Haitao Zhu, Qifang Ren, Shaohua Chen, Yi Ding, Chunyu Xiong, Jing Chen, Xinyu Jia
Summary: MnFe2O4/ZnO/diatomite composites were prepared using a hydrothermal water bath method. The lightweight porous diatomite as a carrier improved the aggregation of ferrite and enhanced the matching impedance and interface polarization effect of the composite. By adjusting the amount of ZnO, the composite exhibited synergistic magnetic loss and dielectric loss, resulting in excellent electromagnetic wave absorption properties. The composite with 30% ZnO showed outstanding electromagnetic wave properties with a minimum reflection loss of -40.4 dB at 9.73 GHz. Furthermore, the heterostructure of ZnO-MnFe2O4 endowed the composites with considerable antibacterial properties, achieving a bactericidal rate of 99%. This composite material has the potential to be used in interior wall decorative coatings with practical electromagnetic wave absorption and antibacterial characteristics.
SOLID STATE SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Honghong Fu, Yue Guo, Jian Yu, Zhen Shen, Jie Zhao, Yu Xie, Yun Ling, Sheng Ouyang, Shiqi Li, Wei Zhang
Summary: This study investigated the relationship between shell thickness and microwave absorption performance in core-shell nanoparticles. The findings showed that the sample with an optimal shell thickness achieved the strongest microwave absorption ability. This research provides important insights for designing next-generation advanced iron oxide-based materials for microwave absorption.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Physical
Fubin Liu, Cuiping Li, Geoffrey I. N. Waterhouse, Xiaohui Jiang, Zhiming Zhang, Liangmin Yu
Summary: The study successfully fabricated lightweight magnetic polyvinylidene fluoride/ferric oxide/polyaniline nanofiber foams with excellent microwave absorption performance, which can be precisely tuned by varying the diameter of the polyaniline nanofibers. Moreover, the effective absorption bandwidth of the composite material could be adjusted by changing the absorber thickness.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yao Ge, Wanmi Guo, Qinglin Huang, Shanjun Tao, Haixia Ji, Qifang Ren, Yue'e Chen, Jing Chen, Xinyu Jia, Yi Ding
Summary: The research focuses on the development of absorbing materials with high absorbing capacity and lightweight. MnFe2O4 nanoparticles were prepared using a hydrothermal method, and their size was found to have an impact on the electromagnetic microwave absorption performance. The introduction of diatomite and a three-dimensional polyaniline network further enhanced the absorption capability of the MnFe2O4/PANI/diatomite composite. The absorption mechanism is attributed to impedance matching, conduction losses, polarization losses, and magnetic losses.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Lian Deng, Yanjun Liu, Guoqiang He, You Wu, Huanfu Zhou
Summary: A novel Fe2O3-CaSiO3 (FCS) composite microwave dielectric ceramic was synthesized through solid-state reaction method. The relationship between the phase composition, microstructure, relative density of the composite ceramics and their microwave dielectric properties was investigated. The phase compositions of the prepared samples were CaSiO3 and Fe2O3, and the Q x f values of the FCS ceramics were positively correlated with the phase content of CaSiO3. The effect of microscopic morphology on the microwave dielectric properties of the FCS ceramic samples was studied by SEM technique. EDS analysis confirmed the phase composition of the ceramic samples as Fe2O3 and CaSiO3. Finally, the FCS ceramics sintered at 1180°C for 4 h exhibited excellent microwave dielectric properties with ε(r) = 8.69, Q x f = 28,000 GHz, τ(f) = -24.29 ppm/°C.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Biochemistry & Molecular Biology
Yifan Zhang, Rui Cai, Dashuang Wang, Kailin Li, Qing Sun, Yuntao Xiao, Hao Teng, Xiaohan Huang, Tao Sun, Zhaohui Liu, Kexin Yao, Yuxin Zhang, Pingan Yang
Summary: In this study, a porous and biomimetic cobalt silicate@diatomite material was successfully synthesized, and its electromagnetic wave absorption property was improved by controlling the composition and structure of the material. The experimental results showed that the Co2SiO4@diatomite composites exhibited low reflection loss and a wide absorption bandwidth, indicating promising high-efficiency microwave absorption capability.
Article
Physics, Multidisciplinary
H. Husain, N. Nurhayati, A. Susanto, E. H. Sujiono, Y. Taryana, K. Krisdayanti
Summary: This study successfully synthesized hematite (α-Fe2O3) and maghemite (γ-Fe2O3) nanopowders from natural ironstone using the coprecipitation method. The synthesis process was varied to obtain different phases by adjusting the acidic environments. The crystal and microstructure were investigated using XRD and SEM, while the microwave absorption properties were examined using a VNA. The results showed that the acidic environments influenced the structure and microwave absorption, with enhanced absorption properties observed after the precipitation process.
Article
Materials Science, Ceramics
Xiaoyan Qu, Jianan Liu, Meimei Zhang, Chaofeng Zhu, Yujun Zhao
Summary: A series of novel glass foam with microwave absorption properties were prepared from soda lime silica (SLS) waste glass, C and Fe2O3 by a sintering method. Characterizations such as bulk density, estimated porosity, crystal structure, microstructure evaluation, specific saturation magnetic moment, electro-magnetic wave absorption, compressive strength and thermal conductivity were used to assess the performance of the developed glass foam. The glass foam sintered at 770 degrees C showed a minimal bulk density of 0.64 g/cm3, porosity of 65.17%, thermal conductivity of 0.276 W/(m·K), compressive strength of 2.9 MPa and specific saturation magnetic moment of 10.0 emu/g.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Environmental Sciences
Viet Van Pham, Ha Phuong Phan La, Tam Quoc Le, Phuong Hoang Nguyen, Tan Van Le, Thi Minh Cao
Summary: In this study, Fe2O3/diatomite material system was used for the photo-Fenton removal of ciprofloxacin in water under visible light excitation. The Fe2O3/diatomite catalysts were characterized by various techniques, and the removal efficiency of ciprofloxacin was evaluated by the effect of H2O2 with different parameters. The results showed that the 0.2 g/L Fe2O3/diatomite catalyst achieved the highest removal efficiency of approximately 90.03% with a 50 μL H2O2 concentration. The Fe2O3/diatomite catalysts also exhibited high stability, with over 80% ciprofloxacin removed after five cycles. This study provides insights into the development of potential materials for the photo-Fenton degradation of antibiotics in wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Peikun Wu, Xiangkai Kong, Yingrui Feng, Wei Ding, Zhigao Sheng, Qiangchun Liu, Guangbin Ji
Summary: The design and development of efficient microwave absorbents through phase engineering is a relatively unexplored area of research. In this study, amorphous/crystalline gamma-Fe2O3 nanosheets (Fe-H) were fabricated and shown to have improved microwave radiation absorption capability. The heterophase engineering strategy was also found to be applicable to other oxides.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Fengyi Wang, Xinzhe Li, Zhihui Chen, Wei Yu, Kian Ping Loh, Bo Zhong, Yumeng Shi, Qing-Hua Xu
Summary: Gamma-Fe2O3 nanocubes/graphene (GFC) composites were prepared for enhancing microwave absorption properties and showed good absorption performance at low frequencies. Furthermore, an interfacial solar evaporator using GFC-modified scouring sponge achieved 97% absorption in the entire solar spectrum range, with a significantly higher evaporation rate compared to pure water.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Ceramics
Wanmi Guo, Sulei Wang, Qifang Ren, Zhen Jin, Yi Ding, Chunyu Xiong, Jinpeng Li, Jing Chen, Yuelei Zhu, Won-Chun Oh
Summary: MgxZn1-x ferrite/diatomite composites were synthesized through a two-step combination process, showing excellent photocatalytic degradation performance and microwave absorption capabilities. The products were fully characterized using XRD, SEM, FTIR, among others, and the importance of developing new functional coatings to improve human environment was discussed.
JOURNAL OF THE KOREAN CERAMIC SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
Wenjun Ma, Chuanhao Tang, Peng He, Xiaohan Wu, Zhong-Kai Cui, Shaoliang Lin, Xiaoyun Liu, Qixin Zhuang
Summary: This study develops a new morphological fabrication strategy for preparing compatible stealth nanomaterials. The growth of flake alpha-Fe2O3 (f-Fe2O3) on hollow mesoporous carbon spheres (HMCS) is achieved using a specific hydrothermal process. The introduction of f-Fe2O3 helps to lower infrared emissivity and improve high-frequency impedance matching. The performance of the material can be regulated by changing the constituent proportion in the hydrothermal suspension.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Environmental Sciences
Jiayu Feng, Kai Li, Ping Ning, Chi Wang, Xin Sun, Fei Wang, Peng Gao
Summary: This study introduces modified Mg-modified γ-Al2O3 sorbents for the simultaneous removal of HCl and HF in a low-temperature environment. The optimal sorbent, modified with 15 wt% Mg and calcined at 400℃, exhibits the highest adsorption capacity. The role of MgO loaded on γ-Al2O3 is investigated and it is found to significantly enhance the adsorption activity of the sorbents.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Environmental Studies
Kai Liu, Pengjun Zhao, Dan Wan, Xiaodong Hai, Zhangyuan He, Qiyang Liu, Yonghui Qu, Xue Zhang, Kaixi Li, Ling Yu
Summary: This paper examines the spatial patterns of rural migrant workers' return to work in China's three major urban agglomerations using mobile phone big data. The study reveals multidimensional spatiotemporal differentiations in the return to work patterns of rural migrant workers, which are influenced by location, city level, and human attributes.
ENVIRONMENT AND PLANNING B-URBAN ANALYTICS AND CITY SCIENCE
(2023)
Article
Environmental Sciences
Xingguang Hao, Jie Yang, Xin Sun, Ping Ning, Kai Li, Yuan Li, Yuejiao Hao, Xin Song
Summary: Based on experimental and theoretical methods, the NO selective catalytic oxidation process over a-MnO2 (110) surface was proposed. The results showed that lattice oxygen served as the active site for NO oxidation, and the second layer oxygen atoms were the most active and stable sites. NO oxidation over the a-MnO2 (110) surface primarily followed the route of O = N-O-O-N = O formation.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Construction & Building Technology
Jianhui Si, Kai Li, Zhaobao Zeng, Zewei Liu, Jiannan Hu
Summary: This study experimentally analyzed the effect of size on the eccentric compression performance of damaged square RC columns reinforced with CFRP. The results showed that CFRP reinforcement could improve the bearing capacity and deformability under small eccentric compression, but the reinforcement effect decreased with increasing size.
ADVANCES IN STRUCTURAL ENGINEERING
(2023)
Article
Engineering, Environmental
Jiayu Feng, Lijuan Jia, Fei Wang, Xin Sun, Ping Ning, Chi Wang, Yuan Li, Kai Li
Summary: In this study, a novel urea-modified copper-based material was synthesized and found to be highly efficient for H2S purification. The material exhibited superior adsorption capacity compared to other adsorbents in the literature. The excellent performance was attributed to the alkaline site, active oxygen concentration, and oxygen vacancy in the material, which effectively captured H2S. Additionally, the deactivated adsorbent was composed of high-purity CuS, indicating the potential for simultaneous H2S purification and sulfur recovery.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Ningning Sun, Yapei Yun, Kaikai Li, Xin Ni, Yao Qin, Xiaofei Yang, Hongting Sheng, Manzhou Zhu
Summary: Regulation of Hybrid Materials of Ministry of Education. Bimetallic nanoclusters with synergistic effect exhibit better stability and activity than monometallic nanoclusters in catalytic applications. The influence of calcination temperature on catalytic performance of AuCu24/AC in homocoupling and heterocoupling of terminal alkynes was investigated by fabricating AuCu24/AC-X (X=0, 200, 300, 500, 800) catalysts. The results showed that the catalytic activity of AuCu24/AC-X exhibited a volcanic trend with the increase of X (heat treatment temperature) and the content of Cu2+ also changed with the increase of X. The AuCu24/AC-200 bimetallic catalyst showed the highest catalytic activity in homocoupling and heterocoupling of terminal alkynes under mild conditions.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Environmental Sciences
Xinyu Yang, Kai Li, Chi Wang, Fei Wang, Xin Sun, Yixing Ma, Yuan Li, Lei Shi, Ping Ning
Summary: Non-thermal plasma (NTP) surface modification technology is a new method for controlling the surface properties of materials. In this study, Cu/ACF adsorbent was modified with NTP to remove H 2 S and PH 3 simultaneously under low temperature and micro-oxygen conditions. The performance test results showed that NH 3 plasma modification had the best removal effect on H 2 S and PH 3 . The NH 3 plasma modification introduced amino functional groups on the surface of the adsorbent and increased the types and number of alkaline sites, thereby improving the adsorption performance. The deactivation of the adsorbent was mainly caused by the consumption of active components and the accumulation of sulfate and phosphate on the surface and inner pores.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Plant Sciences
Ranran Wang, Jiaojiao Bai, Guofu Yan, Zejun Xiao, Kexin Chen, Kaikai Li, Jie Tang, Dongping Lu
Summary: This study found that enzymatic hydrolysate of fucoidan (FEH), derived from Sargassum hemiphyllum, can trigger various immune responses in plants, including ROS production, MAPK activation, gene expression reprogramming, callose deposition, stomatal closure, and plant resistance to Pseudomonas syringae pv. tomato (Pst) DC3000. Therefore, FEH has the potential to be used as a non-microbial elicitor to protect plants from pathogen infection in agricultural practices.
JOURNAL OF PLANT PHYSIOLOGY
(2023)
Article
Mechanics
Kaikai Li, Yingxi Xie, Min Yu, Jiao Gao, Biao Tang, Longsheng Lu
Summary: The evolution of plasma droplets on the surface of electrosurgical scalpels under different heating temperatures was studied. The results showed that electrolysis dominated the evolution at lower heating temperatures, while coagulation suppressed electrolysis at higher heating temperatures. The laser-patterned surface exhibited excellent anti-adhesive properties compared to the original surface.
Article
Chemistry, Multidisciplinary
Xiaorong Lin, Qingqing Li, Yixuan Hu, Zeyu Jin, Kolan Madhav Reddy, Kaikai Li, Xi Lin, Lijie Ci, Hua-Jun Qiu
Summary: Anchoring single metal atom to carbon supports is an effective strategy to enhance catalyst efficiency. Dual-atom catalysts (DACs) have emerged as a promising candidate for atomic catalysts, outperforming single-atom catalysts (SACs). However, understanding the structure and benefits of polynary single-atom catalysts remains a challenge.
Review
Biochemistry & Molecular Biology
Ruifeng Wang, Xin Shi, Kaikai Li, Alex Bunker, Chunmei Li
Summary: One distinguishing feature of the persimmon is its high proanthocyanidins content, known as persimmon tannin (PT), which has many health benefits. This review aims to summarize the literature on the relationship between PT structure and activity, as well as the potential mechanisms underlying its health benefits. The unique structure of PT and its conversion into oligomeric proanthocyanidins, along with its effects on lipogenic and inflammatory signaling pathways, fatty acid oxidation, gut microbiota, and absorption properties, contribute to its multiple health benefits.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Mechanical
Kaikai Li, Longsheng Lu, Yingxi Xie, Min Yu, Guoxiang Jiang, Jinwei Kou, Jiao Gao
Summary: In order to improve the cutting performance of electrosurgical units, an oil-infused surface (OIS) was fabricated and applied to the work terminal. The OIS showed excellent antifouling and thermal barrier properties, enabling autonomous sliding behavior of plasma droplets and reducing tissue adhesive and thermal damage during cutting.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Longsheng Lu, Guoxiang Jiang, Kaikai Li, Yingxi Xie, Jiao Gao
Summary: Learning from nature, particularly from the purple orchid leaf, is a promising approach to design superhydrophobic surfaces. By analyzing the wettability difference of the leaf as it grows and its relation to surface morphology, it is found that the presence of well-developed micro-scale basic unit bumps with a dense nano-scale waxy layer contributes to the best hydrophobicity of the mature leaf. The study also demonstrates that the nano-waxy layer is more effective in enhancing surface wettability than the micro-bumps.
JOURNAL OF BIONIC ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Shubo Zhang, Kailun Li, Wenjing Zhang, Menghan Ma, Mingshen Li, Jing Xue, Hao Chen, Rong Hu, Wei Liu
Summary: This study presents a new type of iron-based alloy with nano particles, manufactured using selective laser melting, to enhance high-temperature performance. The results show superior mechanical properties compared to other additive manufactured alloys, suggesting the potential for improving structural materials in fusion reactors.
SCRIPTA MATERIALIA
(2023)
Review
Metallurgy & Metallurgical Engineering
Wei Liu, Chen Wanqi, Ma Menghan, Li Kailun
Summary: Tungsten is a promising material for plasma facing in nuclear fusion reactors due to its advantageous properties. However, exposure to plasma can lead to micro/nanoscale damage on its surface, impacting its thermal and mechanical properties. This paper provides an overview of the research on the damage behavior of tungsten exposed to plasma, including the mechanisms of surface blistering and the effects of irradiation defects. The findings can contribute to optimizing the microstructure of tungsten materials and improving their performance and lifespan.
ACTA METALLURGICA SINICA
(2023)
