Article
Environmental Sciences
M. R. El-Aassar, F. S. Hashem, A. A. Elzain, A. S. M. Ali, F. M. Mohamed
Summary: In this study, poly(styrene-co-acrylonitrile) nanofibers incorporated with carbon nanotubes (CNTs) and graphite were created using the electrospinning method. The effectiveness of the carbonaceous materials in the nanofibers and their efficiency in removing simazine pesticide were evaluated. The experimental results showed that the adsorption capacity of the nanocomposites increased with higher pH values and concentrations of nanofibers, with CNTs-based nanofibers outperforming graphitic ones. Additionally, pseudo-2nd-order mechanism was found to be more suitable for simazine adsorption onto P(St-co-AN) nanocomposites with better linearity compared to the Langmuir model.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Qiang Qiang Shi, Hang Zhan, Run Wei Mo, Jian Nong Wang
Summary: In this study, a strategy for preparing highly orientated CNT/EP composites was reported. By continuously soaking and stretching CNT fibers in an EP resin solution, the EP resin infiltrated and aligned the CNTs simultaneously, resulting in a highly uniform and orientated composite.
Article
Chemistry, Analytical
Xuemei Lv, Yongfa Zhang, Ying Wang, Guojie Zhang, Jun Liu, Yang Lu
Summary: Carbon nanotubes were successfully synthesized by Fe-K catalytic pyrolysis of coal, revealing key factors such as insufficient carbon sources, limited catalytic effect of potassium carbonate, synergistic effect of Fe and K, and the molten state of the catalyst.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Physical
H. Zhou, H. P. Zhou, B. Yang, C. Liu, S. Zhang, T. T. Feng, Z. Q. Xu, Z. X. Fang, M. Q. Wu
Summary: SiOx-based three-dimensional composite conductive carbon network shows high conductivity and reduced volume expansion, making it a promising anode material for lithium-ion batteries with good cycling performance and reversible specific capacity.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Toshiki Shimizu, K. Kanishka H. De Silva, Masanori Hara, Masamichi Yoshimura
Summary: We introduced a facile and economical method to fabricate graphene aerogels with controllable structural properties by incorporating carbon nanotubes and carbon nanofibers, and demonstrated their application in organic dye adsorption. The presence of oxygen functionalities gives an overall negative charge to the graphene aerogels, which exhibited a high adsorption capacity for cationic dyes and a relatively low adsorption capacity towards anionic dyes. The porosity of graphene aerogels, chemical and physical interaction of functional groups, overall charge on graphene aerogels and the dye molecules, and the size of the dye molecules are the main criteria that affect the selective dye adsorption.
APPLIED SURFACE SCIENCE
(2022)
Review
Materials Science, Multidisciplinary
Victor Morales-Florez, Arturo Dominguez-Rodriguez
Summary: This review article provides a comprehensive overview and discussion on the fabrication methods and mechanical properties improvement of ceramic matrix composites using different carbon allotropes as reinforcements. Although significant improvements have been achieved, there are still some critical issues that need to be addressed in order to fully exploit the potential of this reinforcement strategy.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Polymer Science
Yu-Chun Chiang, Wei-Ting Chin, Chih-Cheng Huang
Summary: Coaxial electrospinning is a useful method for producing HACNFs for CO2 capture, with carbonization temperature and CO2 activation affecting the structure and adsorption performance of the nanofibers. Increasing N=C and quaternary N groups can enhance CO2 adsorption, while maintaining the degradation rate of CO2 uptakes after cyclic runs is crucial for long-term performance.
Article
Engineering, Environmental
Sebastian Wilk, David Medina-Cruz, Marcel Zambrzycki, Piotr K. Szewczyk, Marek Nocun, Elzbieta Menaszek, Thomas J. Webster, Aleksandra Benko
Summary: In this study, carbon nanofiber (CNF) - carbon nanotube (CNT) nanofibrous composites were fabricated by thermal treatment of electrospun polyacrylonitrile precursor. The presence of CNTs affected the structure and chemical composition of the CNF composites and improved their antibacterial performance. These materials exhibited excellent electrical conductivity, cytocompatibility, and antibacterial properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Manufacturing
Verena Wulf, Ada Pui-yan Hung, Adi Hendler-Neumark, Weibai Li, Olga Shamis, Michael Gozin, Xiaodong Huang, Alan Kin Tak Lau, Gili Bisker
Summary: Noise pollution poses a threat to health and well-being, and its prevalence has been increasing. Incorporating fluorescent single-walled carbon nanotubes (SWCNTs) into epoxy resins can improve their sound-dampening capabilities. The DNA-SWCNT/epoxy composites showed the highest transmission loss, with an 18% improvement compared to epoxy alone, and the optimal concentration of DNA-SWCNT was found to be 2 mg L-1. Additionally, the near-infrared fluorescence of SWCNTs was utilized to characterize their distribution within the epoxy resin.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Chemistry, Physical
Takashi Ikuno, Kazuki Takahashi, Akari Kadogawa
Summary: Researchers have fabricated nanocarbon-based paper balloons that can be levitated by light irradiation. The levitation height of the balloons was found to be dependent on the number of carbon nanotubes used.
Article
Materials Science, Multidisciplinary
Oluwafunmilola Ola, Habib Ullah, Yu Chen, Kunyapat Thummavichai, Nannan Wang, Yanqiu Zhu
Summary: A synthesis method for iron oxide nanoparticles coated with graphitic carbon nitride (Fe-x-NC) and their improved electrochemical stability and corrosion resistance in an acidic electrolyte environment is reported. The nanocomposites exhibit enhanced activity and long-term stability for the hydrogen evolution reaction in a 0.5 M H2SO4 aqueous solution. The study sheds light on new efficient and durable electrocatalysts for applications in acidic environments.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Tuo Xiao, Youfang Zhang, Wen Xi, Rui Wang, Yansheng Gong, Beibei He, Huanwen Wang, Jun Jin
Summary: This study demonstrates a rational design of a 3D porous Ti3C2Tx/CNTs-Co9S8/S cathode, which exhibits high initial capacity, good cyclic stability, and excellent rate performance in lithium-sulfur batteries. The designed cathode addresses the challenges of polysulfide shuttling, poor electronic conductivity, and volume expansion in lithium-sulfur batteries.
Article
Engineering, Environmental
Simeng Xia, Lin Deng, Xia Liu, Lingfang Yang, Xiuzhen Yang, Zhou Shi, Yong Pei
Summary: Novel magnetic nickel incorporated carbon nanofibers (Ni@CNF) were synthesized for sulfadiazine (SDZ) adsorption, with Ni atoms playing a crucial role in enhancing adsorption capacity. Ni@CNF showed great applicability to various organic contaminants, excellent stability, and reusability over multiple cycles. This study provides evidence for constructing nickel incorporated adsorbents with impressive adsorption capacity in environmental remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Chemical
Joel Gutierrez-Martinez, Cesar Nieto-Delgado, Miguel Avalos-Borja, Elena Basiuk, Jose Rene Rangel-Mendez
Summary: This study enhanced the adsorption performance of porous materials in automotive canisters for volatile organic compounds by growing carbon nanostructures on a novel macroporous carbon material. The addition of carbon nanostructures increased the surface area and adsorption kinetics, leading to improved benzene vapor adsorption compared to commercial granular activated carbon commonly used in automotive canisters.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Bartosz Mikolaj Gackowski, Helixman Phua, Mohit Sharma, Sridhar Idapalapati
Summary: A new hybrid additive manufacturing method is proposed to simplify the preparation of cost-effective polymer composites reinforced with short fibers and nanotubes by controlling the weight percentage and number of buckypapers. Improvement in mechanical properties of the materials can be achieved through this method. Additionally, the failure mechanisms of the composites and potential future applications are discussed.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Chemical
Bo Zhu, Ruiqi Shao, Nan Li, Changsheng Guo, Pengbi Liu, Jie Shi, Chunying Min, Shengkai Liu, Xiaoming Qian, Lijing Wang, Zhiwei Xu
Summary: In this study, a beta-cyclodextrin modified sodium hyaluronate (HA-CD) was used to achieve sustained release of piperazine by non-specific hydrogen bond interaction. The prepared membrane showed excellent anion selectivity (alpha max:114) and permeability (10.66 L m-2 h-1 bar-1). The long-term filtration and nano-scratch test results demonstrated good operational stability (permeability only decreased about 30%) and mechanical strength (interface bonding strength increased about 270%).
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Polymer Science
Shuai Wang, Leilei Song, Shengkai Liu, Xiaoyuan Pei, Yufen Zhao, Chunying Min, Ruiqi Shao, Tianshuai Ma, Yue Yin, Zhiwei Xu, Chunhong Wang
Summary: In this study, the radiation resistance of epoxy reinforced by UIO-66-OH metal-organic framework was investigated. The use of UIO-66-OH nanoparticles as radical scavengers significantly reduced the generation of free radicals after irradiation and enhanced the mechanical and thermal properties of the epoxy. The hydroxyl functionalization and porous structure of UIO-66-OH nanoparticles were found to be crucial for their radiation resistance.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Chemistry, Applied
Lian Feng, Wei Wang, Bing Song, Xueli Zhu, Lei Wang, Ruiqi Shao, Tianyu Li, Xiaoyuan Pei, Liang Wang, Xiaoming Qian, Zhiwei Xu
Summary: A flame retardant waterborne polyurethane with phosphorus, nitrogen and silicon units (P-N-Si-WPU) was successfully synthesized using a one-step approach. P-N-Si-WPU showed higher limiting oxygen index value and lower peak heat release rate compared to pure waterborne polyurethane. The flame retardant mechanism of P-N-Si-WPU was mainly gas phase flame retardant and condensed phase flame retardant, enhanced by the formation of a thermally stable char layer.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Mechanics
Mingyue Zhao, Xiaoyuan Pei, Shigang Luo, Minjie Yan, Wenjin Xing, Wei Wang, Shengkai Liu, Ruiqi Shao, Zhiwei Xu
Summary: The purpose of this paper is to study the tensile properties and interfacial bonding properties of textile reinforced mortar composites (TRM) used for externally strengthening damaged buildings. The crack onset and propagation during the tensile process were detected using digital image correlation (DIC) method. The effects of mortar hydration, and reinforcing textile type on interfacial bonding properties were evaluated through double-lap shear testing. Stress distribution and load transfer during textile pull-out from the mortar were analyzed based on finite element (FE) simulation.
COMPOSITE STRUCTURES
(2023)
Review
Materials Science, Multidisciplinary
Mingming Sun, Ruiqi Shao, Wei Wang, Tianshuai Ma, Tianyu Li, Wensheng Huang, Yujia Liu, Yanling Xue, Xiaoyuan Pei, Zhiwei Xu
Summary: In this review, the heterogeneous structure of polyacrylonitrile-based carbon fibers (CFs) is examined from various perspectives, including morphological structure, physical properties and chemical structures, mechanical properties, and structural models. The relationships between the mechanical properties of CFs and their heterogeneous structure are analyzed. Additionally, currently accepted models of the CFs heterogeneous structure are summarized, and suggestions for further research are provided.
ADVANCED ENGINEERING MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Jinxi Bao, Xiaohui Song, Feng Tian, Haiting Shi, Shuaitong Liang, Shuo Wang, Ming Zeng, Yanling Xue, Chunxia Hong, Zhiwei Xu
Summary: This review discusses the growth of lithium dendrites and the shuttle of polysulfides in lithium metal batteries, and summarizes the types and mechanisms of action of biomass separator materials. It also proposes the prospect of developing new separator materials and applying advanced technologies to characterize the mechanism of action of biomass separators.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Applied
Luyao Feng, Miao Zhang, Yiwen Hua, Peng Zhu, Yanjun Tang
Summary: In this research, shear-induced orientation was used to successfully prepare oriented cellulose nanocrystals (CNCs) reinforced epoxy resin composite films. The oriented CNCs significantly improved the mechanical properties of the composite films, and the aspect ratio of the CNCs also had a noticeable impact on the enhancement effect. Although the transparency of the films decreased with increasing CNC content, it was possible to obtain composite films with a transmittance close to that of pure epoxy resin film by adjusting the preparation process of CNCs. The thermal stability of the oriented CNCs reinforced epoxy resin composite films improved at low CNC content but decreased with increasing CNC content. The successful preparation of these films will contribute to the expansion of applications for epoxy resins reinforced with rod-like micro/nano fillers.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Environmental Sciences
Jihong Hu, Yufan Feng, Hong Su, Zhiwei Xu, Hung Chak Ho, Hao Zheng, Wenyi Zhang, Junwen Tao, Keyu Wu, Mohammad Zahid Hossain, Yunquan Zhang, Kejia Hu, Cunrui Huang, Jian Cheng
Summary: This study conducted a systematic analysis of schizophrenia seasonality in different countries and explored the effects of weather factors globally. The onset of schizophrenia in the southern hemisphere peaked in the cold season, while in the northern hemisphere it peaked in the warm season. In China, schizophrenia seasonality showed two peaks, in late cold and warm seasons. Short-term exposure to high temperature, low temperature, heatwave, temperature variation, and extreme precipitation increased the risk of schizophrenia.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Junping Miao, Shuaitong Liang, Haiting Shi, Shuo Wang, Jianxin He, Zhiwei Xu
Summary: Atomic-scale interface engineering is an effective strategy for addressing the challenges of large volume expansions and sluggish redox kinetics in K-storage. By synthesizing dual carbon-modified interfacial regions with high lattice-matching degree, charge transport can be accelerated and activation energy can be reduced. State-of-the-art characterization techniques and theoretical analysis were used to investigate the local atomic structure evolution, mechanical degradation mechanisms, and ion/electron migration pathways. The study found that the heterostructure composed of the same crystal system and space group can significantly regulate the redox kinetics of transition metal selenium, and dual carbon-modified approach can tailor physicochemical degradation.
Article
Engineering, Chemical
Nan Li, Yumeng Zhang, Peng Li, Bo Zhu, Wei Wang, Zhiwei Xu
Summary: In this study, the surface of a thin-film composite (TFC) membrane was optimized with graphene oxide quantum dots with amino groups (NH2-GOQDs) through the amide coupling reaction to enhance forward osmosis (FO) membrane performance. The grafting of NH2-GOQDs improved the hydrophilicity and surface roughness of the membrane, resulting in enhanced affinity and contact area with water molecules. The NH2-GOQD-grafted membrane at a concentration of 100 ppm (TFC-100) exhibited superior permeability performance compared to the TFC membrane. It also demonstrated excellent antibacterial properties and resistance to biofouling.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2023)
Article
Environmental Sciences
Jian Cheng, Hao Zheng, Jing Wei, Cunrui Huang, Hung Chak Ho, Shengzhi Sun, Dung Phung, Ho Kim, Xiling Wang, Zhongliang Bai, Mohammad Zahid Hossain, Shilu Tong, Hong Su, Zhiwei Xu
Summary: Air pollution, both routinely monitored and unmonitored, is associated with increased odds of AMI deaths at home, even below the newest WHO air quality standards. Future studies are needed to understand the biological mechanisms and develop intervention strategies to reduce AMI deaths triggered by air pollution exposure.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Tianshuai Ma, Wei Wang, Ruiqi Shao, Hui Deng, Wei Mai, Tianyu Li, Wanwei Jiang, Feng Tian, Zhiwei Xu
Summary: This study investigates the impact of radial heterostructure on the properties of carbon fibers and proposes a new process combination of gamma-irradiation and heat treatment to improve the microstructure of fibers. The results show that the coordination of irradiation and heating significantly improves the hardness and structure of fibers. Atomistic simulations also explain the mechanism behind the structural improvement.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Zhidong Zhou, Wei Wang, Ruiqi Shao, Shengkai Liu, Siqi Liu, Xinke Zhou, Xianyan Wu, Wanwei Jiang, Zhiwei Xu
Summary: This study used a sonochemical-induced approach to achieve in situ growth of nanoscale ZIF-8 at the surface defects of carbon fibers. After high-temperature treatment, ZIF-8 decomposed into ZnO and inorganic carbon, reinforcing the carbon fiber structure. The method effectively improved the mechanical performance of carbon fibers.
Article
Chemistry, Physical
Zhibin Zhang, Xi Wang, Hongyan Li, Gengchen Liu, Kaiying Zhao, Yajun Wang, Zheng Li, Jianying Huang, Zhiwei Xu, Yuekun Lai, Xiaoming Qian, Songnan Zhang
Summary: In this study, an innovative atmospheric water harvester combining hydrogel and 3D raised-fabric was developed, which exhibited excellent photothermal conversion performance and adsorption capacity, making it effective for water collection and storage.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Haiting Shi, Qingqing Wu, Jinxi Bao, Shuaitong Liang, Yanli Hu, Ruiqi Shao, Shuo Wang, Jie Shi, Zhiwei Xu
Summary: Fe2O3 is a potential electrode material for potassium ion batteries due to its high theoretical capacity, low cost, and non-toxic characteristics. However, volume expansion and structural degradation during charging and discharging hinder its application. In this study, three-dimensional flower-like Fe2O3 and low-dimensional spherical Fe2O3 were prepared to improve the specific capacity. The von Mises stress distribution was simulated to understand the electrode failure mechanism, and synchrotron radiation and X-ray techniques revealed the phase transformation process and reaction mechanism of Fe2O3 in potassium ion batteries.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Engineering, Chemical
Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng
Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu
Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia
Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Farzaneh Rouhani, Matineh Ayedi, Nasser Safari
Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou
Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto
Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He
Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin
Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai
Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang
Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2 -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang
Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang
Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng
Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen
Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
