Article
Chemistry, Physical
Xiaoxian Hu, Xiaobo Min, Xinyu Li, Mengying Si, Lu Liu, Junhao Zheng, Weichun Yang, Feiping Zhao
Summary: This study presents a facile and effective approach to prepare Co and Co3O4 nanoparticles co-incorporating nitrogen-doped carbon nanotubes (Co-Co3O4/N-CNTs) as a novel and efficient CDI electrode. The encapsulation of Co-Co3O4 nanoparticles in CNTs inhibits Co leaching and enhances the desalination capacity. The optimized Co-Co3O4/N-CNTs electrode exhibits outstanding desalination capacity of 66.91 mg NaCl g(-1) at 1.4 V.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Chemical
Ranran Wang, Bin Xu, Yun Chen, Xiaoshuang Yin, Ying Liu, Wenzhong Yang
Summary: In this study, rGO/NCDs composites were successfully synthesized for optimizing the preparation process of CDI electrode, exhibiting excellent electrochemical properties and superhydrophilic property. The CDI tests showed that the electrosorption capacity of rGO/25%NCDs electrode was higher, indicating a good removal effect on Pb2+ pollutants.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Bingbing Chen, Aihu Feng, Kun Liu, Jiao Wu, Yun Yu, Lixin Song
Summary: Subsize and Na+ intercalated Ti3C2Tx (Na+-Ti3C2Tx-MS) was prepared by HF etching KCl-assisted molten-salt synthesized Ti3AlC2 and following NaOH treatment. Na+-Ti3C2Tx-MS achieved high electrosorption capacity and charge efficiency during CDI process, showing stable desalination performance.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Chemical
K. Salari, P. Zarafshan, M. Khashehchi, E. Pipelzadeh, Gh. Chegini
Summary: This paper developed an Artificial Neural Network (ANN) model based on experimental data to estimate the amount of water produced by the Capacitive Deionization (CDI) method. The performance of the model was evaluated using mathematical indices, and it was found that the percentage of salt removal by CDI method can be accurately estimated using the ANN modeling method.
Article
Engineering, Environmental
WenYang Deng, Yi Chen, Zhen Wang, XiaoHong Chen, Min Gao, FangFang Chen, WenQing Chen, TianQi Ao
Summary: This article discusses the application of capacitive deionization (CDI) in wastewater treatment and demonstrates the improved ion selectivity by regulating different acid/base functional group distributions. The results show that specific functional groups significantly enhance the selectivity of certain ions. Additionally, a CDI stack system is constructed to achieve high-standard wastewater treatment with a high water production rate.
Article
Chemistry, Physical
Cleis Santos, Ines Rodriguez, Julio J. Lado, Maria Vila, Enrique Garcia-Quismondo, Marc A. Anderson, Jesus Palma, Juan J. Vilatela
Summary: The study explores the use of nanostructured hybrid networks to create metal-free CDI devices with improved performance. The electrodes have high porosity, low electrical resistance, and stable electrochemical performance, making them suitable for brackish water desalination with low energy consumption.
Article
Engineering, Environmental
Benqiang Cen, Rui Yang, Kexun Li, Cuicui Lv, Bolong Liang
Summary: The study demonstrated that the covalently bonded quaternized activated carbon (QRAC) material showed efficient and selective adsorption of nitrate in water. This new material has the potential for effective removal of nitrate pollution in water and provides insights into the selective electrosorption of CDI technology.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Environmental Sciences
Muaz Al Radi, Enas Taha Sayed, Hussain Alawadhi, Mohammad Ali Abdelkareem
Summary: Capacitive deionization (CDI) is a promising water desalination method due to its high performance, energy efficiency, and environmental friendliness. Graphene, a carbon derivative, is widely used as an electrode material in CDI due to its exceptional electrical conductivity and large surface area. Recovering some of the input energy can further reduce the energy consumption of CDI and the recovered energy can be utilized for other purposes.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Chemical
Cheng Gao, Tianqi Ao, Ming Gao, Weilong Xiao, Wenqing Chen
Summary: Multi cavity carbon microsheets (MCCM-5) were prepared using a hard template method and low-cost nitrated pitch as a carbon source. The material exhibited excellent capacity for NaNO3 (45 mg g-1) and showed superior denitrification performance compared to other carbon materials. MCCM-5 had a higher adsorption capacity for NaNO3 compared to hierarchical porous carbon materials (HPCM-1) and commercial activated carbon. The study demonstrated the importance of precise regulation of carbon material structure for optimizing electrode materials.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Enas Taha Sayed, M. Obaid, A. G. Olabi, Mohammad Ali Abdelkareem, Muaz Al Radi, Amer Al-Dawoud, Sameer Al-Asheh, Noreddine Ghaffour
Summary: This review summarizes the principles, applications, and future development of capacitive deionization (CDI) technology in wastewater treatment, highlighting the significant advancements in removing various contaminants from water using CDI.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Thao Trang Le Nguyen, Thanh Tung Nguyen, Hoang Anh Nguyen, Hoang Long Ngo, Thu Thao Nguyen, Quoc Khuong Vo, Le Thanh Nguyen Huynh, Thu Trang Nguyen Thi
Summary: TiO2/CNTs nanocomposite electrode exhibits remarkable capacitance, conductivity, and durability, making it a suitable electrode candidate for CDI technology.
CLEAN-SOIL AIR WATER
(2023)
Article
Engineering, Chemical
Nayeong Kim, Eun-A Lee, Xiao Su, Choonsoo Kim
Summary: Optimizing operational conditions such as HCT, operational voltage, electrolyte salinity, and feed flow rate can significantly enhance the desalination performance of MC-MCDI, leading to increased salt adsorption capacity and maximized ion removal rate. These results indicate the high stability and efficiency of MC-MCDI over multiple cycles, suggesting its potential for industrial and environmental applications with the possibility of further enhancement using novel electrode materials.
Article
Engineering, Environmental
Raed A. Al-Juboori, Salam Bakly, Les Bowtell, Susan S. A. Alkurdi, Ali Altaee
Summary: Adsorption is effective for water treatment, but limited capacities of adsorbents and regeneration issues are challenges. This study proposed innovative approaches, including capacitive deionization and degaussing, for improving the adsorption/desorption of biochar made from macadamia nutshell. The results showed that CDI extended the saturation time of MBC by 10 fold, while degaussing increased the nitrate recovery rate. The regenerated MBC-CDI exhibited better nitrate adsorption than fresh MBC for two cycles.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
G. Bharath, Abdul Hai, K. Rambabu, T. Pazhanivel, Shadi W. Hasan, Fawzi Banat
Summary: This study investigates the removal of toxic fluoride and heavy metal ions from wastewater using asymmetric capacitive deionization (CDI) electrodes. By utilizing tailored nanoarchitecture, high electrosorption capacity was achieved for monovalent F-, divalent Pb2+, and trivalent As(III) ions, demonstrating successful application in real industrial wastewater and contaminated groundwater treatment. The fabricated Ni/MAX//pRGO electrode shows excellent electrochemical properties for the removal of anionic and cationic metal ions in aqueous solutions.
Article
Engineering, Chemical
Mingxing Shi, Hua Qiang, Chunyu Chen, Zahira Bano, Fengyun Wang, Mingzhu Xia, Wu Lei
Summary: Research shows that utilizing a three-electrode CDI system with flow-through and flow-by electrodes can achieve higher salt adsorption capacity and faster salt adsorption rate. Additionally, this system has higher charge efficiency, lower energy consumption, and shorter desorption time.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Wei Jin, Yanqiu Fu, Meiqing Hu, Shiqi Wang, Zhonggang Liu
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Physical
Fang Hu, Huiping Hu, Jia Tang, Xuejing Qiu, Wei Jin, Jiugang Hu
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Chemistry, Physical
Ran Du, Wei Jin, Rene Huebner, Lin Zhou, Yue Hu, Alexander Eychmueller
ADVANCED ENERGY MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Yang Zhang, Xuefeng Peng, Bingqiang Fan, Nan Zang, Shili Zheng, Yi Zhang, Wei Jin
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Chemistry, Physical
Liu Hong, Fangge Liu, Nan Zang, Wei Jin, Cheng Yang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Multidisciplinary
Wei Jin, Yi Zhang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Chemistry, Multidisciplinary
Zexing Wu, Hengbo Wu, Tengfei Niu, Shuai Wang, Gengtao Fu, Wei Jin, Tianyi Ma
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Green & Sustainable Science & Technology
Junwu Chen, Xudong Li, Weiquan Cai, Yingxian Shi, Xiang Hui, Zhijun Cai, Wei Jin, Jiajie Fan
JOURNAL OF CLEANER PRODUCTION
(2020)
Review
Chemistry, Multidisciplinary
Zexing Wu, Ying Zhao, Wei Jin, Baohua Jia, Jie Wang, Tianyi Ma
Summary: Efficient electrocatalysts are crucial for ecofriendly electrochemical energy technologies and devices. Introducing vacancies has been recognized as a valid strategy to improve electrocatalytic performances of nanomaterials by tuning electronic structure, regulating active sites, and enhancing electrical conductivity. Recent achievements in vacancy engineering for various electrocatalytic processes, particularly in ORR, OER, HER, NRR, and CO2RR, are comprehensively summarized, along with their applications in overall water-splitting and zinc-air battery devices. Challenges and prospects of vacancy engineering in regulating electrocatalytic performances for different electrochemical reactions are also discussed.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Analytical
Yanqiu Fu, Jinrui Li, Wei Jin, Zhonggang Liu
Summary: A dual-functional electrochemical sensor based on TDDB microspheres has been proposed in this work, showing excellent electrochemical performance for Pb(II) and H2O2 detection with high sensitivity and low detection limits. The sensor exhibited high reliability and good recovery in the electrochemical detection of Pb(II) in lake water and H2O2 in human serum.
Article
Chemistry, Multidisciplinary
Zexing Wu, Ying Zhao, Hengbo Wu, Yuxiao Gao, Zhi Chen, Wei Jin, Jinsong Wang, Tianyi Ma, Lei Wang
Summary: This work presents a facile and industrially compatible corrosion strategy for the rapid synthesis of amorphous RuO2-decorated FeOOH nanosheets. The FF-Na-Ru electrode is superhydrophilic and aerophobic, ensuring intimate contact with the electrolyte and facilitating the escape of gas bubbles during the electrocatalytic process. Strong electronic interactions between RuO2 and FeOOH dramatically improve the electrochemical interfacial properties, leading to excellent catalytic activity towards the hydrogen evolution reaction and overall water-splitting.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Electrochemistry
Wei Jin
Summary: It is highly desirable to develop technologies that minimize pollution during the production and recovery of metals from end-of-life waste streams. Electrochemical processes utilizing electrons as oxidant/reductant have been successfully employed for the source reduction and sustainable restoration of metal-bearing wastes, involving adsorption, oxidative leaching, reductive deposition, membrane separation, biological and photochemical reactions. This review systematically summarizes the recent progress and future perspectives on electrochemical processes for environmental remediation of metal-bearing waste and unconventional natural resources.
ELECTROCHIMICA ACTA
(2021)
Article
Engineering, Environmental
Wei Jin, Meiqing Hu, Zhi Sun, Ching-Hua Huang, He Zhao
Summary: This study presents a novel capacitive deionization method for efficient extraction of lithium and boron from salt lake brine, achieving high selectivity and stable recovery rates.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Nan Zang, Zexing Wu, Jie Wang, Wei Jin
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
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)
