Article
Engineering, Chemical
Italo G. M. da Silva, Elizabete F. Lucas, Rigoberto Advincula
Summary: This study presents a rapid and facile method to obtain a fluorine-free, superhydrophobic/superoleophilic coating with superior thermal stability based on a cyclic methacrylate chemistry. The coating exhibits excellent oil/water separation efficiency, high thermal stability, and outstanding adhesion properties on the mesh screen.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Santu Ruidas, Avijit Das, Saurav Kumar, Sasanka Dalapati, Uttam Manna, Asim Bhaumik
Summary: This study presents a facile, non-fluorinated and robust chemical approach to tailor the water wettability of covalent organic frameworks (COFs). By grafting a silane precursor and selected alkyl acrylates onto the prepared COF, different water wettability, including superhydrophobicity, can be achieved. The superhydrophobic COF exhibits significantly enhanced oil-absorption capacity and can be used for oil-in-water emulsion separation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Chunhua Liu, Yun Peng, Conglin Huang, Yuzhen Ning, Jiaoping Shang, Yibao Li
Summary: This study presents a novel method to construct Janus copper foam by combining superhydrophobicity and superhydrophilicity. The resulting Janus foam exhibits superior oil/water separation efficiency and repeatability. This design and fabrication method offers a new avenue for practical applications in liquid transportation, sensor devices, energy materials, and oil spills.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Zhihao Dong, Wenzheng Feng, Chi Huang, Hongpeng Lin, Chunyan Jia, Changliang Ren
Summary: We have developed a superhydrophobic melamine sponge with excellent sorption capacities for organic solvents and oils. It shows good recyclability, stability, and selectivity, making it suitable for oil spill restoration and water treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Yu-Hui Jiang, Yu-Qing Zhang, Zhan-Hua Wang, Qing-Da An, Zuo-Yi Xiao, Ling-Ping Xiao, Shang-Ru Zhai
Summary: Inspired by mussel chemistry, the researchers utilized the synergistic chemistry of lignin and dopamine to construct superhydrophobic oil-water separation substrates with stable micro-island projections. The material showed excellent oil-water separation performance, high adsorption capacity, mechanical stability, and acid-alkali resistance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Applied
Gang Huang, Liang Huo, Yikai Jin, Shuaijie Yuan, Ruixi Zhao, Jing Zhao, Zhengrong Li, Yangling Li
Summary: The study demonstrate that preparing superhydrophobic fabrics with different levels of hydrophobicity can enhance oil-water separation efficiency and oil flux. The presence of SiO2 nanoparticles endows the fabric with superhydrophobicity, and the hydrophobicity of the fabric has a positive effect on separation efficiency.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Environmental Sciences
Jamilu Usman, Babatunde A. Salami, Afeez Gbadamosi, Haruna Adamu, A. G. Usman, Mohammed Benaafi, S. I. Abba, Mohd Hafiz Dzarfan Othman, Isam H. Aljundi
Summary: Due to the global oil spill causing significant energy and economic losses, there is a growing interest in oil-water separation. This study uses strong non-linear machine learning models to predict the oil flux and oil-water separation efficiency of wastewater using ceramic membrane technology. Different combinations of input variables are considered to determine the most contributing input features. The results show that the proposed SVR-2 [Combo-2] model for oil flux and GPR-3 [Combo-3] model for oil-water separation efficiency have the best performance and accuracy.
Article
Materials Science, Multidisciplinary
Daibin Tang, Enzhou Liu
Summary: This study successfully prepared a fluorine-free superhydrophobic cotton fabric with low energy consumption and high separation efficiency, using hydroxyl-capped polydimethylsiloxane (PDMS-OH), tetraethoxysilane (TEOS), and stearic acid (STA) as precursors. The cross-linking reactions between PDMS-OH and hydrolyzed TEOS enabled a strong interaction between PDMS-OH and cotton fabric, while the introduction of STA created a suitable roughness surface. The PDMS/STA-coated cotton fabric exhibited a contact angle of 158.7 degrees and showed excellent oil/water separation efficiency of over 90% even after 10 cycles of separation.
Article
Chemistry, Multidisciplinary
Xi Quan Cheng, Yang Jiao, Zekun Sun, Xiaobin Yang, Zhongjun Cheng, Qing Bai, Yingjie Zhang, Kai Wang, Lu Shao
Summary: A simple method of coaxial electrospinning was proposed to manufacture superhydrophobic membranes for ultrafast separation of water-in-oil emulsions. By designing asymmetric composite membranes with selective layers, the mass transfer resistance was reduced, resulting in high separation efficiency and permeance. The manufactured membrane showed strong promise in separation of water-in-oil emulsions, with a large size, continuous production, and potential for further enlargement.
Article
Engineering, Environmental
Pan Xu, Xinxue Li
Summary: This paper explores a simple method to prepare superhydrophobic TiO2/SiO2 nanoparticle coating and superhydrophobic metal mesh, sponge, and loofah for oil/water separation. The study reveals that the coating surface features nano-scale pore structure and convex nano-nipple structure, demonstrating superhydrophobic properties.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Applied
Jun Lu, Chaofan Cui, Qihao Yu, Juanjuan Su, Jian Han
Summary: Superhydrophobic porous materials with biodegradability and a relatively simple preparation process are more attractive for practical application and environmental protection.
JOURNAL OF POROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Qian Yang, Weiyin Su, Jianquan Hu, Yan Xu, Zhong Liu, Lanfeng Hui
Summary: This paper presents the design of two biopolymer oil/water separation routes based on cellulose stearoyl ester (CSE), resulting in a hydrophobic and oleophilic membrane with high strength and long durability.
Article
Engineering, Environmental
Fei Xiao, Hongxia Zhang, Tianzhao Wu, Jiahao Liu, Jianxin Liu, Jiangbo Zhang, Wei Liu, Taixin Liang, Jinghui Hu
Summary: A melamine sponge with superhydrophobic/superlipophilic characteristics was successfully created using a simple two-step immersion approach. The prepared sponge showed exceptional stability and anti-corrosion properties, and can be used for rapid oil-water separation.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Agricultural Engineering
Haodong Sun, Zhongming Liu, Keyin Liu, Magdi E. Gibril, Fangong Kong, Shoujuan Wang
Summary: A superhydrophobic porous material composed of lignin, hexadecyltrimethoxysilane (HDTMS) and melamine resin sponge was developed for efficient oil-water separation, with high durability and emulsions separation efficiency. The material also showed excellent mechanical durability, high selectivity, and acid and alkali resistance, making it a promising option for cost-effective oil spill treatment.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Polymer Science
Han Wu, Jia Shi, Xin Ning, Yun-Ze Long, Jie Zheng
Summary: A strategy of superhydrophilic-superhydrophobic Janus membrane was provided to deal with the oil-water separation problem. The Janus membrane showed good separation performance, high stability and recyclability.
Article
Chemistry, Multidisciplinary
Vikramjeet Singh, Kuldeep Singh, Amita Nand, Huanqin Dai, Jianguo Wang, Lixin Zhang, Alejandro Merino, Jingsong Zhu
ARABIAN JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Vikramjeet Singh, Amita Nand, Sarita, Jiwen Zhang, Jingsong Zhu
ARABIAN JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Parbeen Singh, Xiaohong Ren, Yaping He, Li Wu, Caifen Wang, Haiyan Li, Vikramjeet Singh, Jiwen Zhang
ARABIAN JOURNAL OF CHEMISTRY
(2020)
Article
Chemistry, Applied
Parbeen Singh, Xiaohong Ren, Tao Guo, Li Wu, Shailendra Shakya, Yaping He, Caifen Wang, Abi Maharjan, Vikramjeet Singh, Jiwen Zhang
CARBOHYDRATE POLYMERS
(2018)
Article
Chemistry, Physical
Boyi Niu, Yixian Zhou, Ting Wen, Guilan Quan, Vikramjeet Singh, Xin Pan, Chuanbin Wu
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2018)
Article
Chemistry, Applied
Guoqing Zhang, Fanyue Meng, Zhen Guo, Tao Guo, Hui Peng, Jian Xiao, Botao Liu, Vikaramjeet Singh, Shuangying Gui, Peter York, Wei Qian, Li Wu, Jiwen Zhang
JOURNAL OF MICROENCAPSULATION
(2018)
Article
Materials Science, Biomaterials
Tengyi Zheng, Xintian Huang, Jintian Chen, Disang Feng, Liling Mei, Ying Huang, Guilan Quan, Chune Zhu, Vikramjeet Singh, Hao Ran, Xin Pan, Chuan-Yu Wu, Chuanbin Wu
BIOMATERIALS SCIENCE
(2018)
Article
Instruments & Instrumentation
Ailin Hou, Lu Li, Ying Huang, Vikramjeet Singh, Chune Zhu, Xin Pan, Guilan Quan, Chuanbin Wu
DRUG DELIVERY AND TRANSLATIONAL RESEARCH
(2018)
Article
Pharmacology & Pharmacy
Yuanzhi He, Wei Zhang, Tao Guo, Guoqing Zhang, Wei Qin, Liu Zhang, Caifen Wang, Weifeng Zhu, Ming Yang, Xiaoxiao Hu, Vikramjeet Singh, Li Wu, Ruxandra Gref, Jiwen Zhang
ACTA PHARMACEUTICA SINICA B
(2019)
Article
Pharmacology & Pharmacy
Jian Xu, Li Wu, Tao Guo, Guoqing Zhang, Caifen Wang, Haiyan Li, Xue Li, Vikramjeet Singh, Weidong Chen, Ruxandra Gref, Jiwen Zhang
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2019)
Article
Materials Science, Biomaterials
Yixian Zhou, Sulan Luo, Boyi Niu, Biyuan Wu, Jintao Fu, Yiting Zhao, Vikramjeet Singh, Chao Lu, Guilan Quan, Xin Pan, Jiwen Zhang, Chuanbin Wu
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Jing Wang, Han Wang, Yanling Wang, Mengke Wang, Vikramjeet Singh, Xuehu Men, Zhaozhu Zhang
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2020)
Article
Chemistry, Multidisciplinary
Vikramjeet Singh, Xuehu Men, Manish K. Tiwari
Summary: This study has successfully developed a highly amphiphobic and optically transparent surface treatment method using nanohierarchical MOF films, which exhibit excellent properties in various areas such as low sliding angles, self-cleaning, thermal stability, and scratch resistance.
Article
Chemistry, Multidisciplinary
Chao Jiang, Ruopei Sun, Ziyao Du, Vikramjeet Singh, Suwen Chen
NEW JOURNAL OF CHEMISTRY
(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)