Article
Engineering, Chemical
Zhenzhen Yu, Ruowen Liang, Man Zhou, Kai Yang, Ping Mu, Kangqiang Lu, Weiya Huang, Shaobo Ouyang, Zhengquan Li, Changlin Yu
Summary: In this study, Cu and Yb co-doped SnO2 showed enhanced photocatalytic activities for dye and tetracycline degradation due to the redistribution of photo-induced carriers and efficient charge transfer over SnO2.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Physical
Kehan Fan, Chuan Yu, Sentai Cheng, Shenyu Lan, Mingshan Zhu
Summary: The development of high-performance piezocatalysts, such as metallic Bi nanoparticles deposited on BiOCl, can significantly enhance the piezocatalytic degradation of pharmaceuticals in wastewater by improving the separation efficiency of piezoelectric charges and generating more reactive oxygen species.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Boyao Xie, Xingming Ning, Shuoming Wei, Jia Liu, Jimei Zhang, Xiaoquan Lu
Summary: By doping phosphorus and loading CoAl-layered double hydroxides cocatalysts, an integrated system of CoAl-LDHs/P-Fe2O3 photoanode demonstrates significantly improved photoelectrochemical performance, with enhanced surface OER kinetics and carrier separation efficiency contributing to the outstanding photocurrent density observed.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Z. Yang, J. Yang, H. Ji, M. He, Y. Song, W. Zhang, J. Yuan, X. She, Y. She, H. Li, H. Xu
Summary: The study focuses on the rational design and fabrication of Co-doped CuInS2 photocatalysts with S-Co-S internal electron transfer bridges for efficient CO2 photoreduction. The results demonstrate that the S-Co-S bonding bridge enhances the photocatalytic activity and suppresses the recombination of photoexcited charge pairs. Additionally, Co doping modulates the band configuration, leading to higher electron density and lower energy barrier for CO2 reduction.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
Shuai Fu, Qiang Huang, Peiyuan Deng, Zhongyu Liu, Xiuji Zhang, Huijie Zhu, Jianguo Zhou
Summary: This study presented a novel ternary Ag/g-C3N4/BiOBr heterostructure photocatalyst synthesized using an environmentally friendly method, which exhibited significantly improved removal efficiency towards tetracycline and hexavalent chromium ions. The synergistic effect between the heterojunction structure and silver nanoparticles enhanced light absorption, accelerating the separation and transfer of photo-induced electrons and holes. Through various spectroscopic and measurement techniques, it was revealed that holes were the main species involved in tetracycline degradation, with hydroxyl and superoxide radicals also playing a role in the process. This research provides an environmentally friendly approach to developing ternary heterostructure photocatalysts for environmental remediation.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Environmental Sciences
Chenhao Gong, Junxing Han, Can He, Li Shi, Yue Shan, Zhongguo Zhang, Liangliang Wang, Xiaojing Ren
Summary: A novel active Ce-doped Ti4O7 electrode (Ti/Ti4O7-Ce) was prepared and used for improving the degradation efficiency of refractory pollutants in Electrochemical Advanced Oxidation Processes (EAOPs). The addition of Ce significantly impacted the generation rate of center dot OH radicals and electrode stability. The Ti/Ti4O7-Ce electrode showed efficient oxidation capacity for the pharmaceutical pollutant atenolol (ATL) in EAOPs. The degradation efficiency of ATL was influenced by operational conditions, with higher efficiency observed at lower pH values.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Haoran Yin, Qizhan Zhang, Yi Su, Yunping Tang, Minghua Zhou
Summary: This study introduced a novel UV based advanced oxidation process with electrochemical co-generation of chlorine and H2O2 (UV/E-Cl&H2O2) for the degradation of carbamazepine (CBZ) with remarkable efficiency and lower energy consumption compared to traditional processes. The generated radicals, especially center dot OH, played a major role in CBZ removal. The process also showed promising perspectives in removing a variety of pollutants and treating real wastewater.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Yingmei Fang, Jianhua Zhang, Yuan Lin, Yunyun Gui, Lijun Liu
Summary: Exploring efficient photocatalysts for degrading hazardous volatile organic compounds (VOCs) is gaining popularity. By incorporating Co dopant into the WO3 lattice, Co-doped WO3 nanofibrous photocatalysts were developed, leading to significant charge rearrangement and localized electric field. This enhanced oxygen adsorption and activation, driving photoexcited electrons to gather at the Co dopant and achieving spatial charge separation. The improved photocatalytic oxidation of gaseous HCHO and CH3COCH3 by Co0.8-WO3 nanofibers highlights the importance of dopant-induced oxygen adsorption and LEF-induced efficient carrier separation. These findings offer a new direction for developing more efficient photocatalysts using unique doping approaches.
APPLIED SURFACE SCIENCE
(2023)
Review
Biochemistry & Molecular Biology
Christian Schoneich
Summary: This article summarizes recent analytical and mechanistic work on the reactions of therapeutic proteins under light exposure, particularly in relation to protein modification under visible light. It suggests that these processes may be triggered by a ligand to metal charge transfer in excipient-metal complexes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Weiping Yang, Qin Ren, Fengyi Zhong, Yanxia Wang, Jielin Wang, Ruimin Chen, Jieyuan Li, Fan Dong
Summary: By introducing -OH groups into BiOI, the photocatalytic activity is enhanced and the oxidation reaction rate is accelerated, with reduced energy barriers, providing important insights into reducing air pollution.
Article
Chemistry, Physical
G. Huseynova, J. Lee, J. -h. Lee, J. -h. Lee
Summary: Organic semiconductors (OSCs) have unique mechanical and optical properties that make them suitable for developing lightweight and flexible electronic devices, but their inferior electrical conductivity compared to inorganic semiconductors (ISCs) limits commercial applications. This review article focuses on controlling and adjusting the electrical conductivity of OSCs through electrical doping, with an emphasis on charge generation efficiency (CGE) and charge separation efficiencies.
MATERIALS TODAY ENERGY
(2021)
Article
Engineering, Environmental
Shuo Chen, Shu-Zhe Zhang, Hong-Chao Hao, Ya-Li Chen, Hong Jiang
Summary: By dual-ions (F and P) co-doping, the efficiency and stability of TiO2 in visible light absorption and photo-generated charge separation were significantly improved. FP3-TiO2 (001) exhibited excellent recycling and environmental stability, possibly due to the formation of Ti-IV-OOH and the continuous shift between it and its exited state.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Mingzhuo Wei, Zhijun Li, Peijiao Chen, Lei Sun, Shilin Kang, Tianwei Dou, Yang Qu, Liqiang Jing
Summary: Nitrogen-rich doped anatase TiO2 nanoparticles were prepared via high-temperature nitridation based on H3PO4-modified TiO2. The associated defects were successfully healed by smart photo-Fenton oxidation treatment. The healed N-doped TiO2 exhibited significantly improved photocatalytic activity for acetaldehyde degradation under visible-light irradiation, attributed to the extended spectral response range, enhanced charge separation, and healed defect levels.
Article
Chemistry, Inorganic & Nuclear
Yijun Yin, Xiaoyi Huang, Wang Wang, Xia Liu
Summary: Carbon and oxygen co-doped phosphotungstate were prepared by thermal treatment with phosphotungstic acid and melamine-cyanuric acid supramolecule as precursors. The co-doped C--O in the Keggin structure of phosphotungstate enhanced the separation of charge carriers and increased the photocatalysis active sites. The photocatalytic degradation efficiency rate constant of CNPW-8-420 was 0.40 h-1 and it showed good reusability. LC-MS/MS analysis revealed the likely photocatalytic degradation pathway and intermediates of imidacloprid.
SOLID STATE SCIENCES
(2023)
Review
Engineering, Environmental
Yanlan Zhao, Xingzhong Yuan, Xiaodong Li, Longbo Jiang, Hou Wang
Summary: Biochar and its composites play a crucial role as catalysts in persulfate-advanced oxidation process, effectively removing organic pollutants through adsorption and catalysis. The study focused on the influence of the physicochemical properties of biochar on persulfate activation, and emphasized the key role of biochar in affecting the catalytic properties of BCs, including stabilizing nanoparticles, expanding surface area, increasing active sites, and regulating electron transfer reactions.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Alberto Lopez-Magano, Saba Daliran, Ali Reza Oveisi, Ruben Mas-Balleste, Amarajothi Dhakshinamoorthy, Jose Aleman, Hermenegildo Garcia, Rafael Luque
Summary: Organic photochemistry developed significantly in the 1980s, providing insights into the excited electronic states and transfer processes. This knowledge has been applied to the design of COFs as visible-light photocatalysts. COFs are crystalline porous materials with excellent tunability, porosity, stability, and photoelectronic properties, making them potential candidates in various research areas.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Applied
Zohreh Kheilkordi, Ghodsi Mohammadi Ziarani, Fatemeh Mohajer, Alireza Badiei, Sunil Gaikwad, Rafael Luque
Summary: In this study, a magnetic nanocatalyst Fe3O4@SiO2@Pr-N (CH2CH2-OBuSO3H)(3) was synthesized and used in the one-pot synthesis of tetrah ydroacenaphtho[1,2-b]indolones under solvent-free conditions at 80℃. Fe3O4@SiO2@Pr-N (CH2CH2-OBuSO3H)(3) has a core-shell structure with high magnetic and nontoxic properties. Molecular docking studies also revealed its potential therapeutic effects against cancer targets.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Review
Agricultural Engineering
S. Thanigaivel, Saravanan Rajendran, Tuan K. A. Hoang, Awais Ahmad, Rafael Luque
Summary: Compared to other hydrogen production methods, biohydrogen produced from biological origin like microalgae is significantly less harmful to the surrounding ecosystem and can replace conventional fossil fuels without emitting greenhouse gases. Substrates like food, agricultural waste, and industrial waste can be easily utilized after pretreatment, increasing hydrogen yield. Improving biofuel production at each stage can have a significant impact, making it a potentially useful tool. Thus, this study comprehensively covers various approaches to pretreat algal biomass, enzymes and catalysts for hydrogen production, variables influencing hydrogen production, and the potential applications of genetic engineering.
BIORESOURCE TECHNOLOGY
(2023)
Article
Energy & Fuels
Marina Ronda-Leal, Sameh M. Osman, Ho Won Jang, Mohammadreza Shokouhimehr, Antonio A. Romero, Rafael Luque
Summary: A TiO2-Fe2O3/C catalyst was successfully synthesized using Metal-Organic-Frameworks (MOFs) as the sacrificial template. It was applied in the hydrogenation of furfural to produce furfuryl alcohol, achieving high conversion and selectivity in a continuous flow reactor under microwave irradiation. This provides promising opportunities for the advancement of green chemistry.
Article
Energy & Fuels
Salman Raza Naqvi, Asif Hussain Khoja, Imtiaz Ali, Muhammad Naqvi, Tayyaba Noor, Awais Ahmad, Rafael Luque, Nor Aishah Saidina Amin
Summary: This article presents a scientometric analysis of the use of micro-porous zeolites for deoxygenation of biomass-derived bio-oil. The physicochemical properties of catalysts and the degree of deoxygenation are examined. The reaction pathways for different zeolites in bio-oil upgrading are also discussed. The technology readiness level is assessed and future recommendations are provided.
Review
Chemistry, Multidisciplinary
Thomas Len, Rafael Luque
Summary: The impact of carbon dioxide on global warming is a pressing issue that requires immediate attention for the sake of the Earth's ecosystem and humanity. Diminishing atmospheric CO2 concentration through conversion is an attractive solution, which can also lead to the formation of valuable compounds. The use of thermal hydrogenation as a method to achieve this goal requires a catalyst due to the high stability of the CO2 molecule. The designed materials should exhibit outstanding performance and stability, with high selectivity for CO and CH4.
Review
Chemistry, Physical
Muhammad Sufyan Javed, Tayyaba Najam, Iftikhar Hussain, Muhammad Idrees, Awais Ahmad, Muhammad Imran, Syed Shoaib Ahmad Shah, Rafael Luque, Weihua Han
Summary: Zn-ion hybrid supercapacitors (ZHSCs) combine Zn-ion batteries with supercapacitors to meet the energy and power needs of portable devices and electric automobiles. This review provides an in-depth investigation and summarization of the charge storage mechanisms, advantages/disadvantages, recent development of cathode materials, and new design of device fabrications for ZHSCs, highlighting the importance of developing new cathode materials.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Daniele Polidoro, Daily Rodriguez-Padron, Alvise Perosa, Rafael Luque, Maurizio Selva
Summary: Chitin, a renewable carbon and nitrogen source, is the second most abundant biopolymer on Earth after cellulose. This study successfully prepared chitin-derived N-doped carbonaceous materials functionalized with palladium metal nanoparticles. The physicochemical properties of these nanocomposites were investigated using a multi-technique approach, and their catalytic activity in reductive amination reactions was explored. Specifically, a biomass-derived platform molecule, furfural, was transformed into valuable bi-cyclic compounds under continuous flow conditions.
Article
Chemistry, Physical
Janejira Ratthiwal, Noelia Lazaro, Antonio Pineda, Roberto Esposito, Zeid A. ALOthman, Prasert Reubroycharoen, Rafael Luque
Summary: In this study, the continuous-flow hydrogenation of furfural with 2-propanol was carried out using transition metal-based catalysts. C-MIL-101(Fe) and C-MIL-125(Ti) were successfully synthesized and compared for their performance in the hydrogenation of furfural. The calcined C-MIL-125(Ti) catalyst exhibited better furfural conversion and selectivity.
CATALYSIS COMMUNICATIONS
(2023)
Article
Energy & Fuels
Iqra Ashraf, Qasim Abbas, Yaqin Huang, Najam Ul Hassan, Munirah D. Albaqami, Ammar Mohamed Tighezza, Sayed M. Eldin, Muhammad Sufyan Javed, Awais Ahmad, Rafael Luque
Summary: This study presents a new approach for developing zinc-ion hybrid supercapacitors by using vanadium-doped manganese oxide aerogel structured cathode material. The doped material expands interlayer distance, creates more active sites and channels for fast ionic diffusion, and offers good structural stability. The as-fabricated ZIHC shows high specific capacitance, capacitance retention, and Coulombic efficiency, as well as superior energy density compared to previous reports.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Environmental Sciences
Danial Karimi, Mostafa Khajeh, Ali Reza Oveisi, Mousa Bohlooli, Ali Khatibi, Razieh Sadat Neyband, Rafael Luque
Summary: Researchers synthesized a covalent organic framework material with diazinon and elemental sulfur, which showed excellent catalytic activity in the degradation of organophosphorus pesticides under visible light. The optimized conditions achieved a degradation rate of over 97% for diazinon and parathion at pH 5.5, effectively detoxifying the pesticides.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Carlos Augusto Morales-Paredes, Imelda Rodriguez-Linzan, Maria Dolores Saquete, Rafael Luque, Sameh M. Osman, Nuria Boluda-Botella, Rodriguez -Diaz Joan Manuel
Summary: The aim of this study was to extract and characterize silica materials from various agro-industrial wastes including sugarcane bagasse, corn stalk, and rice husk. The results showed that silica yields of 17.91%, 9.39%, and 3.25% were obtained for RH, CS, and SCB, respectively. The textural properties indicated that the siliceous materials had mesoporous structures, with SCB and CS forming crystalline SiO2 and RH forming amorphous. XPS spectra demonstrated the presence of Si4+ species in RH, and Si3+/Si4+ tetrahedra in SCB and CS.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Muhammad Imran Khan, Abdallah Shanableh, Suryyia Manzoor, Javier Fernandez, Sameh M. Osman, Rafael Luque
Summary: Diffusion dialysis (DD) process with anion exchange membranes (AEMs) is an environmentally-friendly and energy-efficient technique for acid recovery from acidic wastewater. In this study, dense tropinium-functionalized AEMs were developed via solution casting, which exhibited excellent mechanical, thermal, and chemical stability. These AEMs demonstrated improved DD efficiency in treating acid waste from HCl/FeCl2 mixtures compared to a commercial membrane.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Otoniel Anacleto Estrela Filho, Bryan Fernando Rivadeneira-Mendoza, Kevin Jhon Fernandez-Andrade, Luis Angel Zambrano-Intriago, Fausthon Fred da Silva, Rafael Luque, Fabiola D. S. Curbelo, Joan Manuel Rodriguez-Diaz
Summary: The considerable amount of produced water discharged by the oil industry can cause environmental imbalance due to its harmful components. This study investigated the adsorption capacity of Zinc Imidazolate Framework-8 (ZIF-8) for crude oil removal from synthetic produced water. ZIF-8 exhibited high crystallinity and thermal stability, and its adsorption process was found to be spontaneous and exothermic.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Jennifer Maria Navia Mendoza, Bryan Fernando Rivadeneira Mendoza, Jaime Cevallos Mendoza, Alina M. Balu, Rafael Luque, Luis Angel Zambrano Intriago, Joan Manuel Rodriguez-Diaz
Summary: In this study, a hybrid material MIL-53(Al)@HC was synthesized and demonstrated to have excellent adsorption capability for Ibuprofen sodium salt and Metsulfuron-methyl in a binary system. The hybrid material showed in situ crystal growth capability and could remove >98% of the target substances at extreme conditions. The adsorption kinetics and equilibrium were well described by the pseudo-second order model and the Sips and Freundlich models.
ENVIRONMENTAL RESEARCH
(2024)
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)
