Article
Polymer Science
Yifa Song, Ajit Dattatray Phule, Zhen Yu, Xin Zhang, Aihua Du, Hongzhen Wang, Zhen Xiu Zhang
Summary: By grafting dopamine onto multi-walled carbon nanotubes and using it as a chemical activation point for in-situ synthesis of silver nanoparticles, a lightweight and flexible silicone rubber foam material with efficient electromagnetic shielding performance was prepared. The EMI SE value of the foam material with added MWCNT-PDA-Ag can reach 36 dB, exceeding commercial requirements, and increases with sample thickness.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Jae Pil Jung, Jung-Hyun Lee, Ashutosh Sharma
Summary: In this study, copper conducting films were prepared by electroless plating, and the effects of different plating times on microstructure, thickness, adhesion, and electromagnetic shielding effectiveness were investigated. The experimental results showed that the best outcome was achieved with a 30-minute plating time for the pretreated film, which exhibited excellent adhesion and electromagnetic shielding effectiveness.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Yoon-Ji Yim, Jae Jun Lee, Alexandre Tugirumubano, Sun Ho Go, Hong Gun Kim, Lee Ku Kwac
Summary: By coating soft magnetic metal on carbon fibers using an electroless plating method, the EMI shielding properties of FeCoNi-CFs were significantly enhanced compared to untreated CFs, with the highest EMI shielding effectiveness reaching approximately 69.4 dB at 1.5 GHz.
Article
Materials Science, Multidisciplinary
Yufang Duan, Xueting Fang, Zilong Zhang, Rui Sun, Jun Hong, Fangtao Ruan, Qiaole Hu, Zhenzhen Xu
Summary: In this work, conductive polymer PPy and MXene nanosheets were anchored on the surface of the recycled carbon felts fixed with ES fibers (rCEF@PPy/MXene) to construct porous conductive networks, resulting in high conductivity, excellent EMI shielding property (60 dB) and electro-thermal conversion abilities. The rCEF@PPy/MXene shows great potential for wearable devices and heat management, together with promoting the sustainable reuse of waste carbon fiber resources.
Article
Chemistry, Physical
Senpeng Ning, Mingjie Wang, Shilu Luo, Gui Yang, Yuezhan Feng, Fengmei Su, Youxin Ji, Chuntai Liu
Summary: With the rapid development of electronic technique, enormous electromagnetic pollutions have emerged, and high-performance electromagnetic interference shielding composites are greatly desired. In this study, a lightweight, porous carbon fiber felt/Ag/polydimethylsiloxane (CFF/Ag/PDMS) composite film was fabricated. The film exhibited excellent electrical conductivity and superior EMI shielding effectiveness (EMI SE) due to the homogeneously distributed Ag nanoparticles and the porous structure of CFF. The composite film also showed outstanding corrosion resistance, oxidation resistance, electro/photo-thermal conversion effect, and heating controllability, making it highly promising for applications in 5G communication technology and thermal management.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Chenjian Li, Huaqing Zhang, Yiheng Song, Lixin Cai, Jima Wu, Jinxing Wu, Shan Wang, Chuanxi Xiong
Summary: This study successfully fabricated lightweight melamine-formaldehyde-based composite foams with high EMI shielding characteristics and multiple functions, such as superhydrophobicity, anti-corrosion, and anti-fatigue performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Environmental
Ya-Nan Gao, Ye Wang, Tian-Ning Yue, Biao Zhao, Renchao Che, Ming Wang
Summary: This study focuses on the preparation of absorption-dominant electromagnetic shielding materials using silver (Ag) micro-tubes with superstructure fabricated via deposition of Ag nanoparticles on poly(lactic acid) (PLA) fibers. The composites show ultrahigh electromagnetic interference (EMI) shielding effectiveness and low density, attributed to the absorption dominant shielding mechanism of the Ag micro-tubes. The superstructure of the Ag micro-tubes creates efficient surface plasmon resonance, electronic vibration, interfacial polarization, capacitance effect, and conductive loss, contributing to the high absorption and low density of the materials.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Yali Zhang, Kunpeng Ruan, Junwei Gu
Summary: Sandwich-structured EMI shielding nanocomposite films were prepared using electrospinning-laying-hot pressing technology, showing excellent EMI shielding, thermal conductivities, and mechanical properties. Compared to traditional methods, the novel sandwich structure exhibited superior performance with lower filler content.
Article
Biochemistry & Molecular Biology
Xin-Kun Lv, Jin-Gang Yu
Summary: This study investigates the electroless plating of silver film on nickel-coated graphite powder to enhance its stability. The resulting Ag/Ni/C powder exhibits higher conductivity and electromagnetic shielding performance compared to pristine Ni/C powder, making it a promising material for applications in conductive glue and electromagnetic shielding glue.
Article
Engineering, Aerospace
Wanying Luan, Qin Wang, Qi Sun, Yinxiang Lu
Summary: This study has developed a lightweight and thin Carbon Fiber Fabric/Ni-Fe/CNT/silicone layered electromagnetic shielding composite through chemical plating and in-situ polymerization, demonstrating high shielding efficiency and potential for wide applications in the aviation industry.
CHINESE JOURNAL OF AERONAUTICS
(2021)
Article
Materials Science, Ceramics
Ying Li, Kaiyou Wu, Min Zhang, Xulin Yang, Wei Feng, Pan Wang, Kui Li, Yingqing Zhan, Zuowan Zhou
Summary: MXenes are a highly promising option for EMI shielding materials, but their degradation in humid environments limits further studies. Coating MXenes with graphene oxide (GO) can enhance their stability and EMI shielding performance. The optimal dosage of GO was found to improve the performance of the coated film.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Yanfei Pan, Mayin Dai, Qiang Guo, Dingwen Yin, Shuaiqi Hu, Nianguang Hu, Xin Zheng, Jintian Huang
Summary: Constructing a controllable electromagnetic gradient is important for advanced electromagnetic interference shielding composites. A sandwich-structured Cu-Ni wood composite (CNWC) with excellent electromagnetic shielding effectiveness (average value 57.4 dB) was successfully fabricated. The wood-based composite exhibited maximum saturation magnetization of 7.7 emu/g and increased conductivity to 1930 S/cm. The electromagnetic gradient sandwich-structure enabled multi-dielectric interface loss and multiple reflection loss, combining dielectric loss and magnetic loss to improve electromagnetic wave attenuation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Physics, Multidisciplinary
Qiugang Liao, Hao Liu, Ziqiang Chen, Yinggan Zhang, Rui Xiong, Zhou Cui, Cuilian Wen, Baisheng Sa
Summary: With the development of modern electronics, the next generation of wearable electromagnetic interference (EMI) shielding materials needs to be flexible, ultrathin, lightweight, and robust to protect electronic devices from radiation pollution. In this study, flexible and ultrathin dopamine-modified MXene@cellulose nanofiber (DM@CNF) composite films with alternate multilayer structure were developed using a facile vacuum filtration-induced self-assembly approach. The multilayered DM@CNF composite films demonstrated improved mechanical properties compared to the homogeneous DM/CNF film. Annealing treatment of the DM@CNF film significantly increased conductivity and EMI properties while maintaining relatively high mechanical properties. The ultrathin multilayered DM@CNF film exhibited superior EMI shielding performance compared to most metal-based, carbon-based, and MXene-based materials reported in the literature.
FRONTIERS OF PHYSICS
(2023)
Article
Materials Science, Composites
Chengkun Song, Xiangyu Meng, Hao Chen, Zhenguo Liu, Qi Zhan, Yueming Sun, Weibing Lu, Yunqian Dai
Summary: The study successfully fabricated ultra-thin and high-efficiency graphene-based flexible EMI shielding films using a simple drop-casting method, addressing issues such as poor electrical conductivity of RGO and filler aggregation, to meet the shielding and flexibility requirements of communication equipment.
COMPOSITES COMMUNICATIONS
(2021)
Article
Engineering, Multidisciplinary
Zhenting Yin, Wei Cai, Jingyi Lu, Bin Yu, Bibo Wang, Lei Song, Yuan Hu
Summary: With the arrival of the 5G era, it is crucial to develop conductive polymers that can achieve electromagnetic interference (EMI) shielding, mechanical enhancement, and flame retardancy. A novel EP composite was created by incorporating graphite felt (GF) as a three-dimensional structure and organophosphorus derivatives with different valences as a flame retardant. The composite showed high EMI shielding effectiveness and improved mechanical properties. However, the wick effect of GF necessitated the addition of a flame retardant.
COMPOSITES PART B-ENGINEERING
(2022)
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)