Article
Engineering, Chemical
Patricia Marin Sam Roman, Kitty P. Nijmeijer, Rint Sijbesma
Summary: New isoporous nanofiltration composite membranes with high permeability and size-charge selectivity rejection were fabricated by photo-polymerization.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Green & Sustainable Science & Technology
Shi Li, Xiao Wang, Yuyue Guo, Jiwen Hu, Shudong Lin, Yuanyuan Tu, Lihui Chen, Yonghao Ni, Liulian Huang
Summary: Nanofiltration membranes play a crucial role in advanced water treatment. Developing cellulose-based membranes offers the potential to replace traditional petrochemical-based materials. This comprehensive review focuses on the design approaches and applications of cellulose nanofiltration membranes, as well as discusses current limitations and future directions.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Cheng Fu, Mengyu Zhao, Xuan Chen, Guowei Sun, Chan Wang, Qijun Song
Summary: An efficient piezo-photocatalyst (C3N5-x-CN) with enhanced piezo-photocatalytic performance was fabricated by introducing cyano groups and N vacancies into C3N5. The addition of dual-defect sites in C3N5 created an active catalytic surface, increasing the piezoelectricity and promoting carrier separation, resulting in improved piezo-photocatalytic performance. The system showed efficient removal of tetracycline and production of H2O2 under piezo-photocatalytic treatment.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Tian-Zhi Jia, Ming-Yue Rong, Chang-Tao Chen, Wai Fen Yong, Siew Kei Lau, Rong-Fei Zhou, Min Chen, Shi-Peng Sun
Summary: Nanofiltration (NF) membranes and processes, as a type of pressure-driven membranes, are widely used in various industries for purification, concentration, and resource recovery by separating molecules and ions with different molecular weights and valences. However, individual NF membranes often encounter issues such as poor separation efficiency and membrane instability in complex applications. To address these challenges, researchers have developed NF-based hybrid processes, which not only overcome the limitations of single NF membranes but also improve the overall efficiency of hybrid systems involving other separation processes. Despite the increasing number of publications on NF-based hybrid processes, a systematic review is still lacking. This review aims to provide a comprehensive analysis of the key integration approaches and application areas of NF-based hybrid processes in recent years, as well as the challenges that researchers are facing in this field.
Article
Engineering, Chemical
Na Song, Xiao Xie, Di Chen, Guofu Li, Hongzhou Dong, Liyan Yu, Lifeng Dong
Summary: In this study, a three-dimensional flower nanofiltration membrane was prepared by filling a polyamide layer with MIL-101 (Cr) nanoparticles. The presence of flower-like protuberances greatly increased the surface area of the polyamide layer, leading to better water flux compared to pristine membranes. The membrane showed good separation performance for monovalent and divalent salts, indicating its potential for nanofiltration membrane modifications.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Yang Liu, Shu-Zhou Qu, Ze-Run Zhou, Xiang-Ping Song, Liang Ma, Si-Jing Ding, Qu-Quan Wang
Summary: Plasmonic Ti3C2Tx/Bi2S3 two-dimensional (2D)/2D hybrids were prepared for efficient solar-driven water purification through combining photothermal conversion and photocatalysis. The hybrids showed high-efficiency photothermal conversion and photothermal-assisted photocatalytic activity, demonstrating great potential for drinkable water generation and industrial wastewater treatment. The synergistic effect of photothermal evaporation and photocatalysis on water purification was highlighted, providing new insight into designing functional materials for water purification.
Article
Nanoscience & Nanotechnology
Lin Yang, Ying-Jie Zhu, Guo He, Heng Li, Jing-Chao Tao
Summary: Semiconductor photocatalysts and membrane separation technology are widely used in water treatment. By combining these two technologies, a multifunctional photocatalytic filter paper has been developed to effectively treat wastewater containing various pollutants, showing promising applications in water purification and biomedical fields.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Lin Yang, Ying-Jie Zhu, Guo He, Heng Li, Jing-Chao Tao
Summary: This study developed a new type of multifunctional photocatalytic filter paper using ultralong nanowires of Ca-ALN complex and cellulose fibers. The filter paper exhibited multifunctions of photocatalysis, adsorption, and filtration, which can be used for high-performance treatment of wastewater containing various pollutants.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Engineering, Environmental
Vikrant Sharma, Gomti Borkute, Sarang P. Gumfekar
Summary: Emerging contaminants from industrialization have caused a decrease in fresh water resources. Nanofiltration membranes offer efficient separation of contaminants and have potential as a future technology for complex water purification due to scalability, minimal environmental impact, and energy recovery. Biomimetic membranes, inspired by biological cell membranes, aim to overcome the tradeoff between permeability and selectivity. This comprehensive review examines recent advancements in biomimetic membrane materials, their characteristics, and applications in wastewater treatment. Challenges such as replicating the exact cell structure, fouling, and material stability are discussed, along with opportunities for further research. The review concludes that reproducible and easily processable biomimetic materials are necessary for commercial applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Katarzyna Janowska, Xianzheng Ma, Vittorio Boffa, Mads Koustrup Jorgensen, Victor M. Candelario
Summary: This study developed a new water purification strategy that combines an Al2O3-doped silica nanofiltration membrane with a cerium-doped strontium ferrate thermocatalyst, which can degrade organic pollutants and reduce the chemical oxygen demand in water. It is a simple and efficient treatment method with the potential to degrade micropollutants in water treatment.
Article
Materials Science, Ceramics
Jianxin Xu, Hang Fan, Delei Du, Dongming Li, Bingzhi Chen
Summary: A skeleton structure AlON carrier with light transmission performance was prepared by carbothermal reduction and nitridation. The AlON carrier can disperse nano active components and enhance its photocatalytic performance. The composite photocatalysts further prove the universality of the AlON carrier in the dispersion of nano photo catalyst.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Natalia Garcia Domenech, Finn Purcell-Milton, Adrian Sanz Arjona, Maria-Luisa Casasin Garcia, Maeve Ward, Marc Brunet Cabre, Aran Rafferty, Kim McKelvey, Peter Dunne, Yurii K. Gun'ko
Summary: Nanotechnology has led to the development of sustainable water purification technologies, and two-dimensional nanomaterials show great promise as nanofiltration membranes. This study demonstrates the production and testing of a highly efficient nanofiltration membrane made from water-exfoliated boron nitride, which effectively removes water-soluble dyes. Comparison with membranes produced using different methods highlights the superior performance of water-exfoliated BN membranes.
Article
Chemistry, Physical
Ali Alkenani, Tawfik A. Saleh
Summary: Efficient membranes synthesized by integrating amine-modified graphene have shown significant improvement in permeability and separation capacity against organic contaminants, heavy metals, and salts in water treatment.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Shenyu Lan, Chuan Yu, Fei Sun, Yanxi Chen, Deyang Chen, Wenjie Mai, Mingshan Zhu
Summary: La-doped bismuth ferrite-based multiferroics exhibited strong magnetic response and high piezo-photocatalytic activity, leading to a synergistic enhancement in the degradation of carbamazepine. The internal piezoelectric field of La-BFOs tailored the structure of energy band and boosted the separation of photo-generated carriers, resulting in enhanced removal of pollutants. Additionally, the catalysts showed excellent recyclability and catalytic reproducibility in consecutive cycling tests.
Review
Multidisciplinary Sciences
Muhammad Azam Qamar, Mohsin Javed, Sammia Shahid, Mohammad Shariq, Mohammed M. Fadhali, Syed Kashif Ali, Mohd. Shakir Khan
Summary: Combining semiconducting membrane with nanomaterials is a promising approach to effectively remove various waste products from water with low energy consumption and reduced pollution. The challenge lies in developing an inexpensive, stable, flexible, and versatile material for membrane production. Graphitic carbon nitride (g-C3N4) has emerged as a viable material for membranes due to its unique structure and high catalytic activity. Its durability, permanency in challenging environments, and long-term use without flux decrease provide significant advantages.
Article
Chemistry, Multidisciplinary
Johan Nordstrand, Joydeep Dutta
Summary: This study demonstrates, for the first time, that a Langmuir-based approach can simulate CDI in multiple dimensions and provide new perspectives of different physical pictures. Leveraging the stability of the Langmuir model, an alternative fundamental approach based on relaxed adsorption-flow computations is proposed. The method is tractable for simple simulations of large-scale and structurally complex CDI systems.
Article
Engineering, Environmental
Rola Mohammad Al Soubaihi, Khaled Mohammad Saoud, Joydeep Dutta
Summary: This study reports on the low-temperature carbon monoxide (CO) oxidation using a silver/silica aerogel (Ag/SiO2 AG) catalyst. The catalyst was prepared via a sol-gel synthesis followed by supercritical ethanol drying, resulting in a highly stable and sinterproof catalyst with easy reactant diffusion. The Ag/SiO2 AG catalyst exhibited enhanced catalytic activity due to the prevention of silver nanoparticles agglomeration and the facilitation of well-dispersed active sites, leading to improved mass heat transfer. The catalyst's pretreatment conditions played a crucial role in achieving high CO conversion efficiency at low light-off temperatures, and the active sites responsible for the enhanced catalytic behavior were identified as Ag0.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Xingyan Zhang, Maria Isabel Alvarado-Avila, You Liu, Dongkun Yu, Fei Ye, Joydeep Dutta
Summary: This study presents a simple growth strategy to obtain hierarchical P(Ni, Co, Fe) modified electrodes by phosphating a core/shell composite of nickel-cobalt (NiCo) Prussian blue analogues. The hybrid electrode exhibits high specific capacitance, excellent rate capability, and improved cycling stability. Furthermore, it shows excellent performance in the oxygen evolution reaction and overall water splitting.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Johan Nordstrand, Esteban Toledo-Carrillo, Joydeep Dutta
Summary: Capacitive deionization (CDI) is a promising technique for purifying water by eliminating ions. Recent experiments have shown a natural imbalance in anion/cation adsorption even for solutions containing only sodium and chloride, and suggested a connection with Faradaic leakages. This study presents a new circuit model that considers leakages, separately accounts for leakages on both electrodes, and incorporates different leakage resistances. The model allows analysis and quantification of the influence of leakage resistance and other material properties on adsorption imbalance. Based on these findings, a multi-electrode (ME) device design is proposed to tune or eliminate the adsorption imbalance by distributing voltage across the electrodes appropriately.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Johan Nordstrand, Lea Zuili, Joydeep Dutta
Summary: Electrochemical deionization devices, such as capacitive deionization (CDI), are essential for global freshwater requirements, particularly for desalination of brackish water. The current study extends an electrolytic capacitor (ELC) model to improve stability and efficiency of CDI systems. The newly implemented strategies and theoretical extensions allow for the first fully coupled and spatiotemporal three-dimensional (3D) CDI model. The study investigates a flow-through CDI device structure and finds that asymmetric designs may still perform reasonably well in normal operating conditions.
Article
Thermodynamics
Wujun Wang, Fei Ye, Joydeep Dutta, Bjorn Laumert
Summary: Spectral hemispherical emissivity is a critical property for radiation heat transfer in high-temperature solar thermal applications. This study systematically investigates the photothermal performances and stability of oxidized surfaces of three commonly used chromia-forming alloys. The results indicate the potential of these alloys, especially SS 253MA, for solar-thermal applications.
APPLIED THERMAL ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Santosh Kumar, Jyotismita Konwar, Manashi Das Purkayastha, Sweety Kalita, Avik Mukherjee, Joydeep Dutta
Summary: Food processing waste and by-products can be utilized for manufacturing high-value products, such as pectin extraction from citrus fruit peel and fruit pomace. Conventional extraction methods using acid, alkali, and chelating agents have been used extensively, but advanced extraction technologies like enzyme, microwave, and supercritical water extraction are preferred due to their energy efficiency and high-quality product. This review compares the efficiency, quality, and functionality of different extraction techniques.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Dongkun Yu, Indra Bhusan Basumatary, Santosh Kumar, Fei Ye, Joydeep Dutta
Summary: Benzophenone-3 grafted chitosan (CS-BP-3) was synthesized and used as an antibacterial coating for the first time. The grafting mechanism, chemical structure, and thermal stability of CS-BP-3 were studied. The CS-BP-3 coating demonstrated UV blocking property, surface features, optical and thermal stability, and antibacterial activity against both Gram-negative and Gram-positive bacteria, making it potentially applicable in food packaging.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Chemical
Johan Nordstrand, Joydeep Dutta
Summary: Intercalation host compounds (IHC) are potential candidates for selective ion removal from water. Recent theoretical developments suggest that electrochemical desalination using Nickel Hexacyanoferrate (NiHCF) electrodes could achieve a separation factor of 160 between K+ and Na+ ions, although the experiments have only shown a selectivity of around 3. This study investigates the reasons behind time-dependent selectivity suppression through theoretical derivation and a finite-element model. The findings reveal the importance of ion starvation and the surprising discovery that operating at low state-of-charge can increase selectivity to a theoretical value of 600, surpassing the previously assumed maximum. By implementing specific charging cycles, the time-dependent selectivity has been significantly improved from 3 to 450, and further enhancements can be achieved by combining IHC cathodes with membrane-less carbon anodes.
Article
Electrochemistry
Johan Nordstrand, Joydeep Dutta
Summary: In this study, a flow-through bipolar CDI design is presented, which significantly improves salt adsorption rate and ion transport compared to previous designs. The removal of internal compartments lowers resistance, resulting in advantages that outweigh the potential energy cost.
ELECTROCHIMICA ACTA
(2023)
Editorial Material
Environmental Sciences
George Triantafyllou, George Triantaphyllidis, Annika Pollani, Jun She, Joydeep Dutta, Michael St. John, Marco Faimali, Roy Brouwer, Pavel Stoev
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Rola Mohammad Al Soubaihi, Khaled Mohammad Saoud, Ahmed Awadallah-F, Ahmed Mohamed Elkhatat, Shaheen A. Al-Muhtaseb, Joydeep Dutta
Summary: The oxidation of CO to CO2 via molecular rearrangements induced by catalytic metal atoms with oxygen intermediates is extensively studied in heterogeneous catalysis. This reaction is essential for reducing greenhouse gas emissions, particularly in low-temperature CO oxidation in vehicle catalytic converters. The catalytic activity of the palladium-supported silica aerogel (Pd/SiO2) catalyst was enhanced after the first cycle, attributed to the reconditioning of its pores. The presence of oxide forms of palladium in the SiO2 structure influenced the catalyst's performance by increasing the frequency of active sites. Additionally, the adsorption of CO2 onto Pd/SiO2 was evaluated, and the Langmuir model was employed to study the equilibrium adsorption behavior. Overall, the mesoporous Pd/SiO2 aerogel shows promise as a material for CO removal and CO2 capture at low temperatures.
Article
Chemistry, Physical
Biswanath Das, Esteban A. Toledo-Carrillo, Guoqi Li, Jonas Stahle, Thomas Thersleff, Jianhong Chen, Lin Li, Fei Ye, Adam Slabon, Mats Gothelid, Tsu-Chien Weng, Jodie A. Yuwono, Priyank V. Kumar, Oscar Verho, Markus D. Karkas, Joydeep Dutta, Bjorn Akermark
Summary: In this study, a bifunctional and electrochemically regenerable molecular electrode was successfully developed for the stable production of hydrogen. By anchoring a highly active ruthenium electrocatalyst onto modified fluorine-doped carbon cloth, the electrode exhibited high activity for both oxygen evolution reaction and hydrogen evolution reaction in acidic conditions. The electrode design showed excellent electrochemical regeneration performance after prolonged use.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Maria Isabel Alvarado-Avila, Stefano De Luca, Ulrica Edlund, Fei Ye, Joydeep Dutta
Summary: This study proposes a sustainable method for hydrogen production using sunlight and cellulose as sacrificial agents during the photocatalytic water splitting process. The concentration of cellulose, pH of the system, and Pt loading were found to be important parameters affecting hydrogen production efficiency. The presence of specific molecular elements such as hemicellulose and xyloglucan significantly increased the hydrogen production rate. Carboxymethylation and TEMPO-oxidation of cellulosic biomass resulted in more stable suspensions with higher rates of hydrogen production. The results suggest that cellulosic biomass can be an attractive alternative for the photocatalytic splitting of water for hydrogen production.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Applied
Dongkun Yu, Indra Bhusan Basumatary, You Liu, Xingyan Zhang, Santosh Kumar, Fei Ye, Joydeep Dutta
Summary: This study reports a method to enhance the antimicrobial properties of chitosan coating by loading photocatalyst ZnO-SnOx nanoparticles onto chitosan matrix. The results show that ZnO-SnOx has a better inhibitory effect on bacteria compared to chitosan alone, making the chitosan nanocomposite coating a potential material for food packaging.
PROGRESS IN ORGANIC COATINGS
(2024)
