Article
Electrochemistry
Yijia Wang, Kok Long Ng, Gisele Azimi
Summary: In this study, a benzo[1,2-b:4,5-b']dithiophene-4,8-dione (BDTD) organic electrode material with a favorable AlCl2+ intercalation mechanism was reported. The BDTD cathode exhibited high specific capacity and a well-defined voltage plateau in aluminum-ion batteries, along with exceptional self-discharging resistance.
BATTERIES & SUPERCAPS
(2022)
Article
Environmental Sciences
Barbara Zon Nascimento, Eduardo Perini Muniz, Aloisio Jose Bueno Cotta, Flavio Duarte Couto Oliveira, Paulo Sergio da Silva Porto
Summary: Electrocoagulation with electrical polarity inversion was used to treat oil in water emulsions. The effects of time factors on the treatment process were investigated, and a correlation was found between electrode degradation, oil removal, and electric power consumption. Surface response analysis indicated that increasing the number of inversion cycles reduces electrode degradation. The treatment significantly reduced the chemical oxygen demand of the effluent. There is an inverse statistical correlation between aluminum in the treated effluent and oil removal, indicating the possibility of achieving higher oil removal with less environmental impact.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Na Li, Dongmei She, Kailun Zhang, Hao-Sen Chen, Wei-Li Song, Shuqiang Jiao
Summary: Rechargeable aluminum-ion batteries have gained attention for their potential as next-generation energy storage devices. However, the issues of dendrite growth and corrosion on the surface of aluminum metal electrodes have been overlooked. This study establishes a qualitative relationship between kinetic parameters and surface evolution behavior, explores the electrochemical mechanism, and provides guidance for the optimization design of aluminum-ion batteries.
Article
Materials Science, Multidisciplinary
Santankumar Chaurasiya, Gurraj Singh
Summary: This study analyzes the environmental sustainability of modern foundries and evaluates the manufacturing process of an aluminum-based and titanium-based metal matrix nanocomposite using stir casting technique. The results show that the fabrication process of the nanocomposite has the highest environmental impact in the industry, and it is suggested that a shift to renewable energy sources will play a vital role in mitigating these effects.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Energy & Fuels
Louis Ahoure, Odin Bulliard-Sauret, Christophe Andre, Julie Bergraser, Marion Gaudeau, S. Amir Bahrani
Summary: The aim of this project is to scale up ultrasonic flow reactors by developing lab-size reactors that can be scaled up for industrial production. The first step of the project is to characterize the flow and mixing within a millimetric-sized channel prototype using imaging techniques. Tests were conducted with and without ultrasonic waves to study the impact on mixing efficiency. The study demonstrated that ultrasound enhances mixing and the optimal electrical power divided by flow rate was found to be 260 J/ml.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Engineering, Environmental
Ayse Kuleyin, Aysem Gok, Feryal Akbal
Summary: This study investigated the effectiveness of electro-Fenton (EF) technology for advanced treatment of biologically treated textile wastewater using graphite electrodes. The EF process significantly reduced color, COD, and TOC content of the wastewater under optimal operating conditions. In continuous system, high removal efficiencies were achieved for color, COD, and TOC, demonstrating the promising potential of EF process with graphite electrodes for improving wastewater quality.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Liang Luo, Qiang He, Zixin Ma, Duo Yi, Yi Chen, Jinxing Ma
Summary: The study investigates the energy consumption distribution within a flow electrode capacitive deionization (FCDI) system through in situ potential measurement (ISPM), revealing that the flow electrodes dominate the energy consumption. Increasing carbon black content in flow electrodes can enhance energy efficiency, but consideration should be given to the contribution of ion exchange membranes (IEMs) and the desalination chamber. System optimization strategies, such as introducing IEMs with lower resistance and packing the desalination chamber with titanium meshes, can increase desalination capability and reduce energy consumption, overcoming the tradeoff between kinetic and energetic efficiencies.
Article
Environmental Sciences
Zhuwu Jiang, Yuchang Wang, Hai Yu, Ning Yao, Jyunhong Shen, Yan Li, HongYu Zhang, Xue Bai
Summary: With the rapid development of drinking water disinfection technology, the degradation of nitrogenous disinfection by-products (N-DBPs) has become important for human health. This study proposes the use of CoFe-LDH material as a particle electrode in a three-dimensional aeration electrocatalysis reactor (3DAER) to treat trace N-nitrosopyrrolidine (NPYR). The factors affecting the degradation efficiency and energy consumption of NPYR are systematically investigated, and the results reveal the involvement of different reactions in the degradation process. The CoFe-LDH particle electrode plays a vital role in generating (OH)-O-center dot through a heterogeneous (-)Fenton-like reaction. Additionally, the adsorbed saturated CoFe-LDH particle electrode can be regenerated by electrochemical action, enabling further recycling and in-situ electrocatalysis. This work provides an efficient, low-energy, and environmentally friendly method for the removal of NPYR.
Article
Engineering, Environmental
Chufeng Shi, Hongyang Wang, Ao Li, Guangcan Zhu, Xiaoli Zhao, Fengchang Wu
Summary: Flow-electrode capacitive deionization (FCDI) is a sustainable technology for ion removal, although its energy consumption is relatively high compared to other desalination technologies. By simulating the energy consumption of each FCDI component, this study aimed to optimize the main components and improve our understanding of the energy consumption. The results showed that the flow electrodes had the highest energy consumption, while the ion-exchange membranes and desalination chamber contributed the most to the overall energy consumption. By adding titanium mesh to the flow electrodes and desalination chamber, the energy consumption of the optimized FCDI decreased by 51.9%.
Article
Acoustics
Licheng Jia, Lei Shi, Chongbin Liu, Chengliang Sun, Guoqiang Wu
Summary: This article investigates the impact of top electrode design on transmitting sensitivity of piezoelectric micromachined ultrasonic transducers (PMUTs). Two typical top electrode designs, inner electrode (IE) and outer electrode (OE), were studied and it was found that the OE design showed higher transmitting velocities due to higher quality factor (Q) and resonant frequency, leading to increased acoustic pressure output and higher transmitting sensitivity.
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
(2021)
Article
Acoustics
Dongyan Zhang, Dan Huang, Yixiao Zhang, Yijun Lu, Shuai Huang, Guiliang Gong, Lijun Li
Summary: Three drying methods, including far infrared drying, infrared convection drying, and ultrasonic pretreatment assisted far infrared drying, were used to dry ginger slices. The effects of main parameters on drying kinetics, energy consumption, and color change were investigated. The results showed that the drying process of ginger slices was mostly influenced by the falling rate period. The infrared convection drying had the highest drying rate and the smallest color change, but the highest energy consumption. Ultrasonic pretreatment assisted far infrared drying could promote the drying process with a slightly increased energy consumption and relatively large color change. Ultrasound technology showed great potential in enhancing the drying rate at the early stage.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Engineering, Environmental
Nael G. Yasri, Markus Ingelsson, Michael Nightingale, Aprami Jaggi, Michael Dejak, Katerina Kryst, Thomas B. P. Oldenburg, Edward P. L. Roberts
Summary: One of the main challenges for the implementation of electrocoagulation (EC) in water treatment is fouling and passivation of the electrodes. This study investigates the process of fouling mitigation by polarity reversal during EC treatment. The research found that shortening the polarity period can reduce electrode fouling and lead to the formation of a soft powdery fouling layer that is easily removed.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Mahsa Payami Shabestar, Mohammad Reza Alavi Moghaddam, Elnaz Karamati-Niaragh
Summary: This study evaluated the energy and electrode consumption for AR18 removal in an electrocoagulation system using AC and DC. Results showed that using Fe electrodes and DC had a more significant removal efficiency and lower operating costs.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Fatemeh Tavasol, Tayebeh Tabatabaie, Bahman Ramavandi, Fazel Amiri
Summary: In this study, a new photocatalyst was developed by coupling wasted sediment with titanium isopropoxide, which effectively decomposed cephalexin with a destruction rate of 87.01%. The system, activated by ultrasonic and UV radiation, showed promising results for cephalexin removal in water solutions.
Article
Engineering, Chemical
Ivanna Bashkir, Alex Martynenko
Summary: The research on EHD drying focused on designing multiple-emitter discharge electrodes by optimizing emitter type and arrangement, with emitters made of construction nails and thin pins showing the best performance. Evaluating drying efficiency through drying rate and specific energy consumption (SEC), the nail electrode with a square arrangement demonstrated the highest efficiency. Increasing electric field strength or gap between electrodes led to higher drying rates and SEC, while the chess arrangement reduced drying rate without affecting SEC.
JOURNAL OF FOOD ENGINEERING
(2021)
Article
Engineering, Chemical
Yu-Jung Liu, Shang-Lien Lo, Ya-Hsuan Liou, Ching-Yao Hu
SEPARATION AND PURIFICATION TECHNOLOGY
(2015)
Article
Engineering, Chemical
Cheng-Chun He, Ching-Yao Hu, Shang-Lien Lo
SEPARATION AND PURIFICATION TECHNOLOGY
(2016)
Article
Acoustics
Jo-Chen Lin, Ching-Yao Hu, Shang-Lien Lo
ULTRASONICS SONOCHEMISTRY
(2016)
Article
Environmental Sciences
Hsing-Cheng Hsi, Ching-Yao Hu, Ming-Chien Tsou, Han-Jung Hu, Haluk Ozkaynak, Karen Bradham, Zeng-Yei Hseu, Winston Dang, Ling-Chu Chien
SCIENCE OF THE TOTAL ENVIRONMENT
(2018)
Article
Engineering, Environmental
Yu-Jung Liu, Ching-Yao Hu, Shang-Lien Lo
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Engineering, Environmental
Yu-Jung Liu, Hui-Sz Liu, Ching-Yao Hu, Shang-Lien Lo
Article
Environmental Sciences
Wen-Hui Kuan, Yu-Jung Liu, Ching-Yao Hu
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2020)
Article
Environmental Sciences
Ching-Yao Hu, Yu-Jung Liu, Wen-Hui Kuan
Article
Environmental Sciences
Yu-Jung Liu, Yung-Ling Huang, Shang-Lien Lo, Ching-Yao Hu
Article
Environmental Sciences
Yueh-Feng Li, Wei-Yi Chien, Yu-Jung Liu, Yu-Chi Lee, Shang-Lien Lo, Ching-Yao Hu
Summary: Foam flotation process aided by cationic surfactants proved to be an efficient method for separating and recovering PFOA, with surfactants having alkyl chains similar in length to PFOA showing higher affinities. OTAB was able to completely remove PFOA in 20 minutes in actual wastewater, indicating the potential of this method for industrial applications.
Article
Environmental Sciences
Ching-Yao Hu, Wen-Hui Kuan, Li-Wei Ke, Jung-Ming Wu
Summary: With the increasing transportation demand and facilities, the issues of car wash wastewater treatment and water pollution are becoming more serious. This study examines the use of cyclo-flow filtration to solve the limited space issue in metropolitan areas and increase the willingness of the industry to invest in car wash equipment to recover water resources.
Review
Green & Sustainable Science & Technology
Wen-Hui Kuan, Ching-Yao Hu, Li-Wei Ke, Jung-Ming Wu
Summary: The increasing demand for car washing services in urban areas has led to the generation of large quantities of car wash wastewater containing pollutants such as detergents, dirt, oil, and grease. Most car washes are not equipped with wastewater treatment facilities, resulting in negative impacts on water quality in the surrounding environment.
Article
Engineering, Environmental
Yueh-Feng Li, Yu-Jung Liu, Chia-Hui Yen, Ching-Yao Hu
Summary: The aim of this study is to investigate whether the application of ultrasound and chloride could improve the efficiency of boron removal via electrocoagulation in the presence of high sulfate concentration. The results showed that the application of ultrasound effectively eliminated the passive film, significantly improving the current efficiency from 52.4% to 102%. The integration of ultrasound and chloride addition dramatically enhanced boron removal capacity from 11 mg/L to 29 mg/L by electrocoagulation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Ching-Yao Hu, Wen-Hui Kuan, I. -Ju Lee, Yu-Jung Liu
Summary: The adsorption of acetaminophen by manganese dioxide was significant under acidic conditions but negligible under neutral and alkaline conditions. The rate-determining steps in the removal of acetaminophen are electron transfer under acidic conditions and precursor complex formation under neutral and alkaline conditions. The main transformation products were p-benzoquinone and a dimer of 4-aminophenol and acetaminophen under acidic and alkaline conditions, respectively.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
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)