Article
Materials Science, Multidisciplinary
Roman Nickisch, Wiebe M. de Vos, Michael A. R. Meier, Muhammad Irshad Baig
Summary: In this study, polymeric membranes with metal-complexing ligands were prepared using polythiosemicarbazone (pTSC) as the material. The membranes exhibited asymmetric structures and porous properties controlled by the polymer concentration. The pTSC membranes showed efficient removal of silver and copper ions in both batch and dynamic adsorption experiments, and they could be successfully reused after partial desorption of silver ions.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Environmental
Sanjukta Roy, Krishanu Bhowmick, Payel Singh, Subhamoy Bhowmick, Mainak Mukherjee, Swachchha Majumdar, Ganesh C. Sahoo, Priyanka Mondal
Summary: The fabrication of novel CSP composite nanofiltration membranes utilizing surface ionization process with copper ions showed excellent removal efficiency of heavy metals and anti-biofouling properties. The membranes demonstrated promising potential for practical water treatment applications with optimal flux and rejection rates.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Wei Zhou, Pute Wu, Lin Zhang, Shengyu Yao, Delan Zhu, Yaohui Cai
Summary: This study successfully developed an ultra-thin polyamide membrane with sufficient mechanical robustness for removing heavy metal ions from wastewater by assembling nanocomposite interlayers of alumina and carbon black on a kaolin substrate. The introduction of nanocomposite interlayer improved the surface morphology, pore size distribution, and roughness of the ceramic substrate, resulting in enhanced water flux and removal efficiency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Physics, Applied
Hong-Li Wang, Qing-Nan Xu, Xiong-Feng Zhou, Jian-Ping Liang, Si-Si Li, Hao Yuan, Wen-Chun Wang, De-Zheng Yang
Summary: In this study, a high-efficiency adsorbent resin is prepared using nanosecond pulsed discharge plasma for the removal of Cu(II), Pb(II), and Cd(II) ions. The modified resin shows a significantly improved adsorption capacity, which is attributed to the increase in specific surface area and mesopores number, as well as the generation of abundant amino and O-containing functional groups.
PLASMA PROCESSES AND POLYMERS
(2022)
Review
Engineering, Environmental
Hongrui Xiang, Xiaobo Min, Chong-Jian Tang, Mika Sillanpaa, Feiping Zhao
Summary: This review introduces the advantages of membrane separation method for heavy metal removal and summarizes the latest developments and applications of ultrafiltration, nanofiltration, reverse osmosis, and electrodialysis. The results indicate that membrane filtration methods have great potential for heavy metal removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
S. Lari, S. A. M. Parsa, S. Akbari, D. Emadzadeh, W. J. Lau
Summary: Two different methods were used to introduce functionalized graphene oxide onto the surface of nanofiltration membrane in order to enhance performance for heavy metal removal. While the TFN-i2 membrane showed higher water flux, the TFN-c2 membrane exhibited better cobalt removal due to its higher negative surface charge.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Kavitha Edward, Mukund Dalmia, Alexander Mammen Samuel, Prabhakar Sivaraman, Mathur P. Rajesh
Summary: The paper proposes a method for removal and recovery of Zn(II) and Pb(II) from industrial effluent using size-enhanced ultrafiltration technique and carboxymethyl chitosan. The study explores experimental design, process parameter optimization, and result analysis.
Article
Polymer Science
Umair Baig, Abdul Waheed, Hassan A. Salih, Asif Matin, Ali Alshami, Isam H. Aljundi
Summary: By sequentially depositing oppositely charged polycations and polyanions, the modified thin film composite nanofiltration membrane showed increased hydrophilicity and improved fouling resistance, leading to higher permeate flux and longer maintenance of initial flux compared to the pristine membrane.
Article
Engineering, Chemical
Hongli Zhang, Shilin Zhu, Jie Yang, Aijie Ma, Weixing Chen
Summary: A polyamide thin-film composite nanofiltration membrane incorporating phytic acid was developed for efficient removal of heavy metal ions, achieving record-breaking removal rates of Cd2+ and Pb2+ while maintaining excellent long-term stability and reusability. This work demonstrates the potential of the phytic acid-functionalized NF membrane as a promising platform for eliminating heavy metal ions in waste water.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Environmental Sciences
Harini Methma Perera, Anushka Upamali Rajapaksha, Sudantha Liyanage, Anusha Ekanayake, Rangabhashiyam Selvasembian, Achlesh Daverey, Meththika Vithanage
Summary: A novel Chitosan-modified Mimosa pigra biochar (CMPBC) was found to have higher efficiency in removing hexavalent chromium (Cr(VI)) from aqueous systems compared to pristine biochar. The sorption of Cr(VI) was heavily dependent on pH, with the highest adsorption occurring at pH 3.0. The results suggest the potential use of CMPBC as an easily available, environmentally sustainable, and inexpensive sorbent for the decontamination of Cr(VI) from water.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
M. Hezarjaribi, Gh Bakeri, M. Sillanpaa, M. J. Chaichi, S. Akbari, A. Rahimpour
Summary: The study focuses on the preparation and assessment of electrospun adsorptive nanofiber membranes for the removal of toxic Ni(II) and Cu(II) from wastewater, showing excellent removal efficiency with the incorporation of thiol-modified titanate nanotubes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
A. Asadi, S. Nazari, F. Gholami, M. Dolatshah
Summary: The poly-acrylonitrile (PAN) ultrafiltration (UF) membrane showed a significant improvement in permeability and antifouling performance after incorporating dopamine, protease, and lipase. SEM, ATR-FTIR, zeta potential, AFM, and contact angle were used to analyze the surface chemistry, roughness, and hydrophilicity of the modified membrane. The optimized membrane exhibited excellent hydrophilicity, water flux, and removal efficiencies for natural organic matter. Moreover, the enzyme-immobilized membrane showed outstanding antifouling performance, stability, and antibacterial properties against E. coli and S. aureus.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Eunjoo Koh, Nahyun Cho, Hee Min Park, Yong Taek Lee
Summary: In this study, chemically modified polyvinylidene fluoride (PVDF) hollow fiber membranes with anionic-hydrophilic and hydrophobic materials exhibited excellent properties for separating bacteria and particles. The modified membranes showed high fouling resistance and a higher protein recovery ratio compared to the pristine membrane. The developed membranes can be applied in biopharmaceutical production and removal of proteins, retro viruses, and bacteria.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Chemical
Nisha Malik, Vijaya Kumar Bulasara, Soumen Basu
Summary: A low-cost ceramic membrane was modified by coating cellulose acetate (CA) to enhance its performance. The porosity of the membrane changed significantly with the variation of polymer concentration and dipping duration. The optimized membrane showed excellent performance in ultrafiltration applications.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Environmental Sciences
Yi Wang, Daxue Li, Jian Li, Jun Li, Mao Fan, Mengwei Han, Zequn Liu, Zhanguo Li, Fanxin Kong
Summary: This work fabricated a new type of UiO-66 incorporated polysulfone ultrafiltration membranes, which exhibited enhanced antifouling properties and heavy metal ions removal efficiency. The incorporation of UiO-66 fillers improved the hydrophilicity, porosity, and HA removal ratios of the membranes. The modified membranes also showed excellent antifouling abilities and were highly-effective in removing heavy metal ions.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
F. E. Jurin, C. C. Buron, S. Clement, A. Mehdi, B. Lakard, N. Martin, C. Filiatre
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2020)
Article
Chemistry, Analytical
Miguel Aller-Pellitero, Sara Santiago-Malagon, Jules Ruiz, Yasmine Alonso, Boris Lakard, Jean-Yves Hihn, Gonzalo Guirado, F. Javier del Campo
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Materials Science, Multidisciplinary
S. Lakard, E. Contal, K. Mougin, C. Magnenet, B. Lakard
Article
Chemistry, Analytical
Abdeslam Et Taouil, Emmanuel Contal, Sophie Lakard, Boris Lakard
Summary: The electrochemical behavior of different functionalized carbazoles was studied using classical cyclic voltammetry, computational calculations, electrochemical simulations, and fast cyclic voltammetry. The presence of ethyl, tert-butyl, and phenyl groups in carbazoles affected the rate of dimerization of radical cations and their electrochemical polymerization. Theoretical calculations using DFT method were consistent with experimental results, providing further insights into the reactivity of carbazoles.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Jerome Dejeu, Amelie Cot, Patrick Rougeot, Boris Lakard, Sophie Lakard, Michael Gauthier
Summary: The development of new surfaces with high adhesion and conductivity for microdevice fabrication, specifically for 3D assembly of microcomponents, is a significant challenge. Polyaniline films prepared through electrochemical deposition in phosphoric acid solution showed high adhesion properties, stability, and conductivity, making them comparable to the best commercial glues. These materials have a wide range of potential applications in telecommunications, bioengineering, and MEMS.
Review
Chemistry, Analytical
Sophie Lakard, Ileana-Alexandra Pavel, Boris Lakard
Summary: Neurotransmitters like dopamine play crucial roles in the central nervous system, and quantifying dopamine levels is essential for preventing medical and behavioral issues. Electrochemical biosensing is a robust method with real-time measurement capabilities, making it the most viable option currently available.
Article
Chemistry, Applied
Emmanuel Contal, Sophie Lakard, Frederic Dumur, Boris Lakard
Summary: In this study, various carbazole derivatives were synthesized and electrochemically oxidized in acetonitrile. The properties of the resulting polycarbazole films were significantly influenced by the nature of the substituents, with films from monomers unsubstituted at the 9-position showing the most promising performance.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Analytical
Ileana-Alexandra Pavel, Sophie Lakard, Boris Lakard
Summary: Conductive polymers have gained attention for their unique properties and tunable structures, making them widely used in various applications. This review focuses on discussing the recent advances in manufacturing flexible electrochemical sensors, in response to the increasing demand for wearable personal sensing devices.
Article
Chemistry, Physical
Abhishek Kumar, Emmanuel Contal, Sophie Lakard, Frederic Dumur, Rita Meunier-Prest, Lydie Viau, Marcel Bouvet, Boris Lakard
Summary: In this study, a novel carbazole derivative was synthesized and covalently grafted onto an ITO surface using the electrochemical method. The electrografted organic film significantly improved the adhesion of the polymer films deposited on top of it. Furthermore, the polymer films on the functionalized ITO substrate exhibited excellent stability and their physicochemical properties remained unchanged.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Analytical
Ileana-Alexandra Pavel, Alexis Lasserre, Leo Simon, Jerome Rossignol, Sophie Lakard, Didier Stuerga, Boris Lakard
Summary: Incorporating sulfonated metallophthalocyanines into sensor materials can improve electron transfer for species detection. This study proposes a simple alternative to expensive sulfonated phthalocyanines by electropolymerizing polypyrrole with nickel phthalocyanine and an anionic surfactant. The obtained structure shows increased hydrophobicity, making it suitable for developing efficient gas sensors with low sensitivity to water. The materials tested show good effectiveness in detecting ammonia in the range of 100 to 400 ppm.
Proceedings Paper
Engineering, Electrical & Electronic
Eleonora Frau, Yipeng Zhang, Lydie Viau, Florian Jurin, Cedric Buron, Claudine Filiatre, Silvia Schintke
2020 22ND INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON 2020)
(2020)
Article
Materials Science, Multidisciplinary
Cedric C. Buron, Tjasa Vrlinic, Tristan Le Gallou, Sophie Lakard, Aude Bolopion, Patrick Rougeot, Boris Lakard
ACS APPLIED POLYMER MATERIALS
(2020)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
