Article
Engineering, Environmental
Liang Ying Ee, Qipeng Zhao, Jie Gao, Chit Kai Lim, Kai Xue, Sze Yuet Chin, Sam Fong Yau Li, Tai-Shung Chung, Shing Bor Chen
Summary: In this study, facile intercalation and functionalization of β-cyclodextrin onto layered double hydroxides have resulted in the formation of accessible hydroxyl functional groups and anions that exhibit strong sorption and host-guest interaction with boron. The modified LDH was employed to fabricate a polyamide-based thin-film nanocomposite membrane with high salt rejection and water permeance for brackish water, achieving a high boron rejection rate as well. This pioneering study provides valuable insights into the design of brackish water reverse osmosis membranes using macrocyclic molecules and inorganic layered nanomaterials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Qipeng Zhao, Die Ling Zhao, Fan Feng, Tai-Shung Chung, Shing Bor Chen
Summary: By intercalating citrate anions into layered double hydroxides, a novel thin-film nanocomposite (TFN) membrane with enlarged inter-layer spacing was developed. This membrane demonstrated excellent performance in brackish water reverse osmosis desalination and boron removal, offering insights for the design of next-generation TFN membranes for water treatment.
Article
Environmental Sciences
Mukarram Zubair, Hamidi Abdul Aziz, Ihsanullah Ihsanullah, Mohd Azmier Ahmad, Mamdouh A. Al-Harthi
Summary: In this study, engineered biochar decorated layered double hydroxides and cellulose nanocrystals (B-CuFe-CNC) biocomposites were synthesized and investigated for the purification of Eriochrome Black T (EBT) dye from water. The biocomposite exhibited excellent crystallinity, improved surface functionalities, and a two-dimensional rod-like structure due to the presence of CNC in biochar-layered double hydroxides. The adsorption of EBT by the biocomposite was demonstrated to be influenced by electrostatic and chemical interactions, with a maximum adsorption capacity of 876.2 mg/g achieved within 45 minutes. The biocomposite maintained high EBT removal after multiple adsorption cycles and showed excellent dye adsorption in different water matrices, suggesting its potential for enhanced dye removal from wastewater.
Article
Environmental Sciences
Zhongshuo Xu, Yueheng Zhong, Yuhui Wang, Xinshan Song, Wei Huang
Summary: Phosphorus pollution can cause both aquatic eutrophication and global phosphorus scarcity. Fe-based layered double hydroxides (LDHs) have been extensively studied for their high phosphorus adsorption and recovery. The composition of Fe-based LDHs is crucial in determining their adsorption performance. In this study, Zn/Fe LDH exhibited a much higher adsorption capacity than Mg/Fe LDH, and calcination significantly increased the adsorption capacity of Mg/Fe LDH. The phosphorus removal efficiency of Fe-based LDHs was high under acidic conditions but decreased with increasing pH, with Zn/Fe LDH showing weaker pH inhibition.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Polymer Science
Abdul Majeed Pirzada, Imran Ali, Nabi Bakhsh Mallah, Ghulamullah Maitlo
Summary: In this study, a PET-PAN embedded with Mg-Al-LDH-PVA nanocomposite membrane was fabricated through electrospinning. The optimized nanocomposite membrane showed a beadless, smooth structure with increased hydrophilicity and stability. The membrane demonstrated high adsorption performance for Cr(VI) and methyl orange, with removal efficiencies of 68% and 80% respectively. The adsorption process followed a Langmuir isotherm model and pseudo-2nd order kinetics, and the membrane exhibited stability for up to five cycles.
Article
Green & Sustainable Science & Technology
Aamir Hanif, Mingzhe Sun, Tianqi Wang, Shanshan Shang, Daniel C. W. Tsang, Jin Shang
Summary: NO2 is a potent air pollutant that can be captured directly from the atmosphere by selective adsorption on porous materials. The study reports the rational development and demonstration of Mg-Al layered double hydroxides and their derived mixed metal oxides as high-capacity adsorbents. By boosting the densities of accessible basic sites, the highest NO2 adsorption capacity was achieved, offering promising, durable, and scalable adsorbents for ambient NO2 removal.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Applied
Shadpour Mallakpour, Zeinab Radfar, Mahmoud Feiz
Summary: The fabrication of environmentally friendly nanocomposite beads containing chitosan, tannic acid, layered double hydroxides, and mixed metal oxides was successful. These beads showed excellent adsorption capacity for three reactive dyes and could be regenerated and reused multiple times.
CARBOHYDRATE POLYMERS
(2023)
Article
Chemistry, Physical
Tarmizi Taher, Raden Putra, Neza Rahayu Palapa, Aldes Lesbani
Summary: The magnetite-nanoparticle-decorated NiFe LDH (MNPs@NiFe LDH) synthesized through coprecipitation and hydrothermal treatment exhibited high crystallinity and uniform distribution of magnetite nanoparticles on its surface. MNPs@NiFe LDH showed a higher adsorption capacity for congo red dye removal from aqueous solution (79.6 mg/g), with the adsorption mechanism being governed by ionic interactions between the positively charged LDH surface and negatively charged dye molecules.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Engineering, Chemical
Yanan Wang, Ning Zhang, Hong Wu, Yanxiong Ren, Leixin Yang, Xiaoyao Wang, Yingzhen Wu, Yutao Liu, Rui Zhao, Zhongyi Jiang
Summary: The mixed matrix membrane incorporating AA-LDH exhibits promising performance in CO2 conversion and separation, with potential application in large-scale CO2 capture and separation.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
Mukarram Zubair, Hamidi Abdul Aziz, Ihsanullah Ihsanullah, Mohd Azmier Ahmad, Mamdouh A. Al-Harthi
Summary: This study successfully synthesized a biochar supported CuFe layered double hydroxides composite using date palm waste, showing great adsorption performance for the removal of Eriochrome black T. Characterization results revealed significant improvement in physicochemical characteristics, leading to rapid and improved adsorption of EBT from the solution.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Applied
Jie Sun, Yujie Wang, Yuzhe He, Junhong Liu, Lizhu Xu, Ziqing Zeng, Yingmin Song, Jianhe Qiu, Zhujian Huang, Lihua Cui
Summary: Cellulose/MgAl layered double hydroxides (LDHs) composite beads were prepared for the removal of polystyrene nanoparticles. The results indicate that the beads have good attachment capacity and the attachment behavior can be successfully explained.
CARBOHYDRATE POLYMERS
(2022)
Review
Environmental Sciences
Xian Guan, Xingzhong Yuan, Yanlan Zhao, Hou Wang, Hui Wang, Jing Bai, Ying Li
Summary: This paper introduces the potential of layered double hydroxides (LDHs) as materials for heavy metal treatment, including potential environmental toxic effects, feasibility, and stability. It also summarizes the preparation strategies and applications of LDHs, and discusses the main treatment mechanisms. The paper also explores the ratio adjustment and reuse of waste liquid in LDHs synthesis. However, most existing research focuses on improving absorption capacity, neglecting toxicity effects and detailed mechanism investigations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yanwei Guo, Hongtao Lu, Bangjun Han, Tiemei Zou, Zhiliang Zhu
Summary: A series of novel layered double hydroxides (Mg-Fe-Ti-LDHs) containing Mg2+, Fe3+ and Ti4+ were prepared and their adsorption performance on vanadate in aqueous solution was investigated. The results showed that the introduction of Ti4+ into the LDHs materials increased the vanadate adsorption efficiency. The adsorption capacity was also influenced by the anion intercalated layers, with Cl- intercalation showing higher removal compared to CO32-. The pH of the solution and coexisting ions also had significant effects on vanadate adsorption.
Review
Engineering, Environmental
Tong He, Qian Li, Tong Lin, Jiaxin Li, Sha Bai, Sai An, Xianggui Kong, Yu-Fei Song
Summary: With the development of industry and agriculture, heavy metals pose a serious threat to water resources and soil. Layered double hydroxides (LDHs) have unique advantages in removing heavy metal ions due to their low Ksp, super-stable mineralization effect, easily modified surfaces, and anion intercalation properties. In this article, the recent progress of LDHs in heavy metals removal is summarized from the perspectives of super-stable mineralization effect and coordination adsorption mechanism, as well as anion intercalation and interlayer coordination.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Yan Fu, Ye Li, Jun Zhang, Dongxue Liu, Chang Liu, Yi Ke
Summary: Antimony pollution has attracted global attention due to its potential toxicity and carcinogenicity. In this study, chloride intercalated Ni-Al layered double hydroxide (Ni-Al LDH) with a good laminated structure was synthesized by co-precipitation and ion exchange. The adsorption performance of Ni-Al LDH for Sb(V) was investigated for the first time through batch experiments. The results showed that Ni-Al LDH had high antimony removal rate and good regeneration performance under the optimum reaction conditions.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Review
Food Science & Technology
Hessamaddin Sohrabi, Omid Arbabzadeh, Pegah Khaaki, Alireza Khataee, Mir Reza Majidi, Yasin Orooji
Summary: This review paper provides a comprehensive overview of the characteristics, toxic effects, clinical and analytical methods of Patulin and Trichothecene, with a focus on the utilization of nanomaterial-based electrochemical sensing tools for highly sensitive detection. It highlights the benefits of nanomaterials in improving detection performance, and emphasizes the reliability of nanomaterial-based electrochemical sensing platforms in on-site analysis for food processing industries.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2022)
Review
Engineering, Environmental
Jafar Abdi, Abdollah Jamal Sisi, Masoud Hadipoor, Alireza Khataee
Summary: This comprehensive review discusses the application of MOFs in ultrasonic-assisted pollutant removal from wastewater, covering their characteristics, synthesis methods, mechanisms of different ultrasound-based approaches, as well as environmental hazards and water stability issues. Economic aspects for the preparation of MOFs and cost estimates for ultrasonic-assisted AOP approaches are also evaluated.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Nazanin Nasrollahi, Leila Ghalamchi, Vahid Vatanpour, Alireza Khataee, Maryam Yousefpoor
Summary: This review paper provides an overview of the role of polymeric additives in the fabrication of polymeric membranes. The additives can influence the formation of pores, permeability, hydrophilicity, and even the creation of desirable properties such as antifouling and antibacterial properties. Different methods of incorporating additives into polymeric matrix are explored to identify the best additives for various types of polymeric membranes. The compatibility of additive polymers with matrix polymers and the effectiveness of functional additives are also discussed.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Environmental Sciences
Nima Ajalli, Mahdi Alizadeh, Abolfazl Hasanzadeh, Alireza Khataee, Jafar Azamat
Summary: The study used carbon-based nanosheet membranes with functionalized pores for water treatment and separation of DMSO. The membrane was found to be impervious to DMSO molecules but allowed high penetrability of water molecules, making it effective for water/DMSO binary mixture separations.
Article
Environmental Sciences
Roshanak Tarrahi, Alireza Khataee, Afzal Karimi, Yeojoon Yoon
Summary: Cellulose-based biomaterials show great potential in skin tissue engineering for mimicking tissue properties and being considered as eco-friendly alternatives for common polymers. Modified cellulose-based biopolymers can address the mechanical limitations of natural biomaterials and prevent immune responses.
Article
Engineering, Chemical
Bahar Ozbey Unal
Summary: In recent years, wastewater reuse has become increasingly important in industrial zones. Reverse osmosis (RO) membranes are commonly used for this purpose, but membrane fouling is a significant issue, affecting membrane performance and lifespan. This study conducted an autopsy analysis of a fouled RO membrane from an industrial wastewater reuse plant in Turkey, revealing the presence of inorganic scaling and molybdenum contamination. An effective chemical cleaning protocol was suggested. This study provides insights into fouling control strategies for industrial wastewater reuse.
Article
Food Science & Technology
Ahmet Senocak, Vildan Sanko, Sureyya Oguz Tumay, Yasin Orooji, Erhan Demirbas, Yeojoon Yoon, Alireza Khataee
Summary: This study successfully developed a Ti3Al0.5Cu0.5C2 MAX phase structure and applied it to the electrochemical determination of rutin antioxidants in mandarin and kiwi samples. The Ti3Al0.5Cu0.5C2 modified glassy carbon electrode demonstrated enhanced electrochemical response and ultra-sensitivity and selectivity towards rutin. The Ti3Al0.5Cu0.5C2-based sensor showed good linearity and low detection limit, making it suitable for the electrochemical determination of small molecules in the agricultural field.
FOOD AND CHEMICAL TOXICOLOGY
(2022)
Article
Food Science & Technology
Hessamaddin Sohrabi, Omid Arbabzadeh, Mahdi Falaki, Mir Reza Majidi, Ning Han, Yeojoon Yoon, Alireza Khataee
Summary: The increasing demand for food and agricultural resources has led to pesticide poisoning and environmental hazards. This article reviews the development of effective biosensors for pesticide detection using LDHs, as well as the recent advances in enhancing the antimicrobial activity of LDHs.
FOOD AND CHEMICAL TOXICOLOGY
(2022)
Article
Acoustics
Mahsa Dastborhan, Alireza Khataee, Samira Arefi-Oskoui, Yeojoon Yoon
Summary: This study developed a flower-like MoS2/CNTs nanocomposite for the targeted degradation of hydroxychloroquine. The results showed that MoS2/CNTs (10:1) nanocomposite exhibited the best sonocatalytic activity. Additionally, this nanocomposite demonstrated stability and reusability for sonocatalytic applications.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Environmental Sciences
Cigdem Balcik, Bahar Ozbey-Unal, Busra Sahin, Ecem Buse Aydin, Bengisu Cifcioglu-Gozuacik, Ramazan Keyikoglu, Alireza Khataee
Summary: Developing TFN membranes by incorporating LDH into the PA layer improves separation, hydrophilicity, and antibacterial properties. The TFN membranes exhibited a smoother surface and successful addition of LDH. The TFN membranes showed enhanced water flux and great rejection performances for divalent ions, as well as excellent antibacterial and self-cleaning properties.
Review
Chemistry, Physical
Sultan Akdag, Ramazan Keyikoglu, Ahmet Karagunduz, Bulent Keskinler, Alireza Khataee, Yeojoon Yoon
Summary: Anthropogenic boron discharge poses a threat to ecosystem health and water quality. This paper presents the use of layered double hydroxides (LDH) for the removal and recovery of boron species from water. The main factors affecting boron removal and the potential of LDH for boron recovery are outlined. LDH has the advantage of being able to recover and reuse extracted boron.
APPLIED CLAY SCIENCE
(2023)
Article
Environmental Sciences
P. I. Omwene, O. T. Can, U. M. Oz, R. Keyikoglu
Summary: Textile production is a major industry, but the dyeing process generates a large amount of highly colored wastewater. This study investigated the removal efficiency of five different textile dyes from wastewater using electrocoagulation. The overall removal trend was DO30 > VB1 > AB324 > RB5 > BY28. Encouraging the use of easily removable dyes can preserve water quality and reduce wastewater treatment costs.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Ramazan Keyikoglu, Alireza Khataee, Yasin Orooji
Summary: The heterogeneous Electro-Fenton (EF) process is a promising wastewater treatment technology. ZnFeV LDH@GF cathode exhibited high efficiency in H2O2 generation and pharmaceutical removal. The ZnFeV LDH coating increased the hydroxyl radical (center dot OH) production and the efficiency of the ZnFeV LDH@GF cathode remained stable after multiple reuse cycles.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Biochemistry & Molecular Biology
Cigdem Balcik, Bahar Ozbey-Unal, Busra Sahin, Ramazan Keyikoglu, Alireza Khataee
Summary: In this study, a CeZnFe-layered double hydroxide (LDH)-incorporated nanofiltration (LNF) membrane was fabricated using the conventional interfacial polymerization (IP) technique to effectively separate dyes and salts in high-salinity wastewater from the textile industry. The addition of LDHs improved membrane surface hydrophilicity and water flux. The optimized TFN membrane exhibited excellent performance in dye and salt fractionation, as well as self-cleaning ability and membrane integrity.
Article
Chemistry, Multidisciplinary
Zehra Betul Ocal, Ramazan Keyikoglu, Ahmet Karagunduz, Yeojoon Yoon, Alireza Khataee
Summary: This study investigates the catalytic oxidation efficiencies of N,N-dimethylacetamide (DMAC) and o-xylene using a Ce-doped CuFe-layered material (Ce-CuFe). The Ce-CuFe catalyst shows superior performance in oxidizing o-xylene and DMAC compared to undoped CuFe. At 450 degrees C, the Ce-CuFe catalyst can remove DMAC and o-xylene with an efficiency higher than 95% and exhibits outstanding reusability performance.
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)
