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Dutta, Joydeep, ProfessorORCID iD iconorcid.org/0000-0002-0074-3504
Alternative names
Biography [eng]

Dr. Dutta is Professor in Functional Materials at KTH Royal Institute of Technology, Sweden. He was previously Chair in Nanotechnology at Sultan Qaboos University (SQU), Oman from 2011-2015. From 2003-2011 he was at Asian Institute of Technology (AIT), Bangkok, Thailand serving as Vice President (2010-2011), Director of Center in Nanotechnology (2006-2013). 1993-2003 he was in Switzerland (EPFL). He has written 3 books and is award winning coauthor of the book “Fundamentals of Nanotechnology”.

Publications (10 of 306) Show all publications
Yu, D., Basumatary, I. B., Liu, Y., Zhang, X., Kumar, S., Fei, Y. & Dutta, J. (2024). Chitosan-photocatalyst nanocomposite on polyethylene films as antimicrobial coating for food packaging. Progress in organic coatings, 186, Article ID 108069.
Open this publication in new window or tab >>Chitosan-photocatalyst nanocomposite on polyethylene films as antimicrobial coating for food packaging
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2024 (English)In: Progress in organic coatings, ISSN 0300-9440, E-ISSN 1873-331X, Vol. 186, article id 108069Article in journal (Refereed) Published
Abstract [en]

Chitosan (CS), an edible and non-toxic natural biopolymer, has been widely used in food preservation attributed to its intrinsic antimicrobial, biodegradable, and excellent film-forming properties. In this work, we report photocatalyst-loaded chitosan coating on commercial polyethylene (PE) film with enhanced antimicrobial properties for food packaging application. To improve the chemical stability of zinc oxide (ZnO) photocatalyst in acidic chitosan matrix, a thin layer (1–5 nm) of amorphous tin oxide (SnOx) was coated on ZnO nanoparticles. Consequently, the charge transfer efficiency of ZnO is improved and most of the surface defects are retained according to the studies of UV–Vis and fluorescence spectroscopy. The thin SnOx coating on ZnO was observed by high-resolution transmission electron microscopy (HRTEM) and its effects on crystallinity and particle size of ZnO were examined using X-ray diffraction (XRD) and particle sizer, respectively. The addition of ZnO@SnOx particles in chitosan coating increases water contact angle (WCA) and enhances thermal stability of chitosan coating. The antimicrobial activity of chitosan, ZnO-SnOx nanoparticles, and CS-ZnO@SnOx coated PE films were examined against both Gram-negative (E. coli, A. faecalis) and Gram-positive (S. aureus, B. subtilis) bacteria. Compared to the limited antimicrobial effects of chitosan, ZnO-SnOx demonstrates an improved inhibition effect on bacterial growth over 48 h period under light. For the CS-ZnO@SnOx nanocomposite coated PE films, no inhibition zone was observed due to the limitation of disc diffusion method. Meanwhile, there were no bacterial colonies found to develop on the film, rendering this CS nanocomposite coating a good candidate for food packaging applications.

Place, publisher, year, edition, pages
Elsevier BV, 2024
Keywords
Antimicrobial, Chitosan, Coating, Food packaging, Photocatalyst
National Category
Polymer Technologies
Identifiers
urn:nbn:se:kth:diva-340108 (URN)10.1016/j.porgcoat.2023.108069 (DOI)001112676900001 ()2-s2.0-85176446273 (Scopus ID)
Note

QC 20231128

Available from: 2023-11-28 Created: 2023-11-28 Last updated: 2023-12-22Bibliographically approved
Toledo-Carrillo, E. A., García-Rodríguez, M., Sánchez-Moren, L. M. & Dutta, J. (2024). Decoupled supercapacitive electrolyzer for membrane-free water splitting. Science Advances, 10(10), 3180
Open this publication in new window or tab >>Decoupled supercapacitive electrolyzer for membrane-free water splitting
2024 (English)In: Science Advances, E-ISSN 2375-2548, Vol. 10, no 10, p. 3180-Article in journal (Refereed) Published
Abstract [en]

Green hydrogen production via water splitting is vital for decarbonization of hard-to-abate industries. Its integration with renewable energy sources remains to be a challenge, due to the susceptibility to hazardous gas mixture during electrolysis. Here, we report a hybrid membrane-free cell based on earth-abundant materials for decoupled hydrogen production in either acidic or alkaline medium. The design combines the electrocatalytic reactions of an electrolyzer with a capacitive storage mechanism, leading to spatial/temporal separation of hydrogen and oxygen gases. An energy efficiency of 69% lower heating value (48 kWh/kg) at 10 mA/cm2 (5 cm-by-5 cm cell) was achieved using cobalt-iron phosphide bifunctional catalyst with 99% faradaic efficiency at 100 mA/cm2. Stable operation over 20 hours in alkaline medium shows no apparent electrode degradation. Moreover, the cell voltage breakdown reveals that substantial improvements can be achieved by tunning the activity of the bifunctional catalyst and improving the electrodes conductivity. The cell design offers increased flexibility and robustness for hydrogen production.

Place, publisher, year, edition, pages
American Association for the Advancement of Science (AAAS), 2024
National Category
Chemical Sciences
Identifiers
urn:nbn:se:kth:diva-344602 (URN)10.1126/sciadv.adi3180 (DOI)001187009700017 ()38446878 (PubMedID)2-s2.0-85187160629 (Scopus ID)
Note

QC 20240412

Available from: 2024-03-20 Created: 2024-03-20 Last updated: 2024-04-12Bibliographically approved
Das, B., Devi, L. S., Dutta, J. & Kumar, S. (2024). Eugenol and Aloe vera blended natural wax-based coating for preserving postharvest quality of Kaji lemon (Citrus jambhiri). Food Chemistry: X, 22, Article ID 101349.
Open this publication in new window or tab >>Eugenol and Aloe vera blended natural wax-based coating for preserving postharvest quality of Kaji lemon (Citrus jambhiri)
2024 (English)In: Food Chemistry: X, E-ISSN 2590-1575, Vol. 22, article id 101349Article in journal (Refereed) Published
Abstract [en]

Edible coatings on fruits and vegetables preserve postharvest quality by reducing water loss and lowering respiration, and metabolic activities. The primary objectives of this study were to develop composite coating formulations using natural waxes (carnauba and shellac wax), eugenol nanoemulsion, and Aloe vera gel, and assess the potential impacts of the coating formulations on the postharvest quality and shelf-life of the Kaji lemon. The results show that eugenol nanoemulsion and Aloe vera gel enhanced the physico-chemical, antimicrobial and antioxidant properties of the developed coating. Notably, the fruits coated with optimized nanocomposite of wax with eugenol and aloe vera gel inclusion (SW + CW/EuNE-20/AVG-2) showed the lowest weight loss (16.56%), while the coatings of wax with only aloe vera gel (SW + CW/AVG-2) exhibited the highest firmness (48 N), in contrast to the control fruit, which had 27.33% weight loss and 9.6 N firmness after 28 days of storage, respectively.

Place, publisher, year, edition, pages
Elsevier BV, 2024
Keywords
Carnauba wax, Citrus fruit, Edible coating, Essential oil, Innovative preservation technique, Shelf-life, Shellac wax
National Category
Chemical Sciences
Identifiers
urn:nbn:se:kth:diva-345760 (URN)10.1016/j.fochx.2024.101349 (DOI)2-s2.0-85189759079 (Scopus ID)
Note

QC 20240419

Available from: 2024-04-18 Created: 2024-04-18 Last updated: 2024-04-19Bibliographically approved
Nordstrand, J., Laxman, K. & Dutta, J. (2024). Long-term durability of commercial capacitive deionization modules. Desalination, 576, Article ID 117377.
Open this publication in new window or tab >>Long-term durability of commercial capacitive deionization modules
2024 (English)In: Desalination, ISSN 0011-9164, E-ISSN 1873-4464, Vol. 576, article id 117377Article in journal (Refereed) Published
Abstract [en]

Long-term durability is becoming increasingly relevant for capacitive deionization (CDI) as the technology emerges on the commercial scale. Short-term deionization studies have suggested that Faradaic leakages could be a major factor in electrode degradation, but the long-term effects are still unclear. In this study, we probe the degradation process of the desalination efficiency in commercial CDI modules for up to 52 days of non-stop operation. This corresponds to a little more than 100 m3 of water treated, and the lifetime production volume of the modules is estimated between 150,000–250,000 L of purified water. Surprisingly, the results demonstrate that the absolute long-term loss is largely linear with the cumulative charge leakage. This suggests short-term leakage currents could reasonably predict long-term degradation. Interestingly, the absolute loss mechanisms mean devices with higher total capacitance are more degradation resistant. Finally, shortening cycle times and other methods of reducing leakage would lead to a proportionally longer lifetime. Notably, the first 2 min of the 10 min operation retained 50 % of the performance with only 10 % of the leakage (10-fold reduction). In conclusion, the work provides a method for understanding, predicting, and reducing degradation in long-term operations with commercial CDI modules.

Place, publisher, year, edition, pages
Elsevier BV, 2024
Keywords
Capacitive deionization, Degradation, Desalination, Durability, Modeling, Upscaling
National Category
Other Physics Topics
Identifiers
urn:nbn:se:kth:diva-343196 (URN)10.1016/j.desal.2024.117377 (DOI)001173189900001 ()2-s2.0-85183518190 (Scopus ID)
Note

QC 20240209

Available from: 2024-02-08 Created: 2024-02-08 Last updated: 2024-03-26Bibliographically approved
Das, B., Toledo-Carrillo, E. A., Li, G., Ståhle, J., Thersleff, T., Chen, J., . . . Åkermark, B. (2023). Bifunctional and regenerable molecular electrode for water electrolysis at neutral pH. Journal of Materials Chemistry A, 11(25), 13331-13340
Open this publication in new window or tab >>Bifunctional and regenerable molecular electrode for water electrolysis at neutral pH
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2023 (English)In: Journal of Materials Chemistry A, ISSN 2050-7488, E-ISSN 2050-7496, Vol. 11, no 25, p. 13331-13340Article in journal (Refereed) Published
Abstract [en]

The instability of molecular electrodes under oxidative/reductive conditions and insufficient understanding of the metal oxide-based systems have slowed down the progress of H2-based fuels. Efficient regeneration of the electrode's performance after prolonged use is another bottleneck of this research. This work represents the first example of a bifunctional and electrochemically regenerable molecular electrode which can be used for the unperturbed production of H2 from water. Pyridyl linkers with flexible arms (-CH2-CH2-) on modified fluorine-doped carbon cloth (FCC) were used to anchor a highly active ruthenium electrocatalyst [RuII(mcbp)(H2O)2] (1) [mcbp2− = 2,6-bis(1-methyl-4-(carboxylate)benzimidazol-2-yl)pyridine]. The pyridine unit of the linker replaces one of the water molecules of 1, which resulted in RuPFCC (ruthenium electrocatalyst anchored on -CH2-CH2-pyridine modified FCC), a high-performing electrode for oxygen evolution reaction [OER, overpotential of ∼215 mV] as well as hydrogen evolution reaction (HER, overpotential of ∼330 mV) at pH 7. A current density of ∼8 mA cm−2 at 2.06 V (vs. RHE) and ∼−6 mA cm−2 at −0.84 V (vs. RHE) with only 0.04 wt% loading of ruthenium was obtained. OER turnover of >7.4 × 103 at 1.81 V in 48 h and HER turnover of >3.6 × 103 at −0.79 V in 3 h were calculated. The activity of the OER anode after 48 h use could be electrochemically regenerated to ∼98% of its original activity while it serves as a HE cathode (evolving hydrogen) for 8 h. This electrode design can also be used for developing ultra-stable molecular electrodes with exciting electrochemical regeneration features, for other proton-dependent electrochemical processes.

Place, publisher, year, edition, pages
Royal Society of Chemistry (RSC), 2023
National Category
Materials Chemistry
Identifiers
urn:nbn:se:kth:diva-338461 (URN)10.1039/d3ta00071k (DOI)000969281800001 ()2-s2.0-85153797028 (Scopus ID)
Note

QC 20231116

Available from: 2023-11-16 Created: 2023-11-16 Last updated: 2023-11-16Bibliographically approved
Alvarado Ávila, M. I., De Luca, S., Edlund, U., Fei, Y. & Dutta, J. (2023). Cellulose as sacrificial agents for enhanced photoactivated hydrogen production. Sustainable Energy & Fuels, 7(8), 1981-1991
Open this publication in new window or tab >>Cellulose as sacrificial agents for enhanced photoactivated hydrogen production
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2023 (English)In: Sustainable Energy & Fuels, E-ISSN 2398-4902, Vol. 7, no 8, p. 1981-1991Article in journal (Refereed) Published
Abstract [en]

The search for new energy sources together with the need to control greenhouse gas emissions has led to continued interest in low-emitting renewable energy technologies. In this context, water splitting for hydrogen production is a reasonable alternative to replace fossil fuels due to its high energy density producing only water during combustion. Cellulose is abundant in nature and as residuals from human activity, and therefore a natural, ecological, and carbon-neutral source for hydrogen production. In the present work, we propose a sustainable method for hydrogen production using sunlight and cellulose as sacrificial agents during the photocatalytic water splitting process. Platinum (Pt) catalyst activates hydrogen production, and parameters such as pH of the system, cellulose concentration, and Pt loading were studied. Using different biomasses, we found that the presence of hemicellulose and xyloglucan as part of the molecular composition considerably increased the H-2 production rate from 36 mu mol L-1 in one hour for rapeseed cellulose to 167.44 mu mol L-1 for acid-treated cellulose isolated from Ulva fenestrata algae. Carboxymethylation and TEMPO-oxidation of cellulosic biomass both led to more stable suspensions with higher rates of H-2 production close to 225 mu mol L-1, which was associated with their water solubility properties. The results suggest that cellulosic biomass can be an attractive alternative as a sacrificial agent for the photocatalytic splitting of water for H-2 production.

Place, publisher, year, edition, pages
Royal Society of Chemistry (RSC), 2023
National Category
Bioenergy
Identifiers
urn:nbn:se:kth:diva-326396 (URN)10.1039/d3se00109a (DOI)000962072100001 ()2-s2.0-85151850991 (Scopus ID)
Note

QC 20230503

Available from: 2023-05-03 Created: 2023-05-03 Last updated: 2023-05-03Bibliographically approved
Yu, D., Basumatary, I. B., Kumar, S., Fei, Y. & Dutta, J. (2023). Chitosan modified with bio-extract as an antibacterial coating with UV filtering feature. International Journal of Biological Macromolecules, 230, Article ID 123145.
Open this publication in new window or tab >>Chitosan modified with bio-extract as an antibacterial coating with UV filtering feature
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2023 (English)In: International Journal of Biological Macromolecules, ISSN 0141-8130, E-ISSN 1879-0003, Vol. 230, article id 123145Article in journal (Refereed) Published
Abstract [en]

Benzophenone-3 grafted chitosan (CS-BP-3) was successfully synthesized and applied as an antibacterial coating for the first time. The grafting mechanism is based on the reaction between ketone and primary amine to form imine derivatives and the chemical structure of grafted chitosan was studied by Fourier transform infrared (FTIR) spectroscopy. Water solubility of BP-3 is enhanced after covalently grafted on chitosan and consequently renders the chitosan coating with UV blocking property. Results of thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) further confirmed the thermal stability of BP-3 modified chitosan is enhanced. The CS-BP-3 coating was applied on a variety of substrates of glass, plastics, wood, and metal. The surface features of the coatings such as morphology, water contact angle (WCA), and surface roughness were investigated. The optical and thermal stabilities of the coatings under UV irradiation were studied for 16 h. Antibacterial activity of CS-BP-3 was evaluated against both Gram-negative and Gram-positive bacteria. And the results of bacterial inhibition by CS-BP-3 coating indicate its potential for future application in food packaging.

Place, publisher, year, edition, pages
Elsevier BV, 2023
Keywords
Chitosan, Benzophenone-3, Green coating, Antibacterial, UV -blocking
National Category
Chemical Sciences
Identifiers
urn:nbn:se:kth:diva-324352 (URN)10.1016/j.ijbiomac.2023.123145 (DOI)000924926000001 ()36621742 (PubMedID)2-s2.0-85146312611 (Scopus ID)
Note

QC 20230228

Available from: 2023-02-28 Created: 2023-02-28 Last updated: 2023-02-28Bibliographically approved
Kumar, S., Konwar, J., Purkayastha, M. D., Kalita, S., Mukherjee, A. & Dutta, J. (2023). Current progress in valorization of food processing waste and by-products for pectin extraction. International Journal of Biological Macromolecules, 239, Article ID 124332.
Open this publication in new window or tab >>Current progress in valorization of food processing waste and by-products for pectin extraction
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2023 (English)In: International Journal of Biological Macromolecules, ISSN 0141-8130, E-ISSN 1879-0003, Vol. 239, article id 124332Article in journal (Refereed) Published
Abstract [en]

Food processing waste and by-products such as peel of citrus fruit, melon, mango, pineapple, etc. and fruit pomace can be utilized for manufacturing of several high-value products. Valorization of these waste and byproducts for extraction of pectin, can help offset growing environmental concerns, facilitate value-addition of by-products and their sustainable uses. Pectin has many applications in food industries such as gelling, thickening, stabilizing, and emulsifying agent, and as a dietary fibre. This review elaborates on various conventional and advanced, sustainable pectin extraction techniques, and paints a comparative picture between them considering extraction efficiency, quality, and functionality of the pectin. Conventional acid, alkali, and chelating agents-assisted extraction have been profusely used for pectin extraction, but advanced extraction technologies e. g., enzyme, microwave, supercritical water, ultrasonication, pulse electric field and high-pressure extraction are preferred due to less energy consumption, better quality product, higher yield, and minimal or no generation of harmful effluent.

Place, publisher, year, edition, pages
Elsevier BV, 2023
Keywords
Food processing by-products, Sustainable technology, Agro-waste, Extraction technique, Biopolymer
National Category
Food Engineering
Identifiers
urn:nbn:se:kth:diva-328278 (URN)10.1016/j.ijbiomac.2023.124332 (DOI)000983249800001 ()37028618 (PubMedID)2-s2.0-85151830101 (Scopus ID)
Note

QC 20230607

Available from: 2023-06-07 Created: 2023-06-07 Last updated: 2024-03-18Bibliographically approved
Triantafyllou, G., Triantaphyllidis, G., Pollani, A., She, J., Dutta, J., St. John, M., . . . Stoev, P. (2023). Editorial: Cleaning litter by developing and applying innovative methods in European seas. Frontiers in Marine Science, 10, Article ID 1232888.
Open this publication in new window or tab >>Editorial: Cleaning litter by developing and applying innovative methods in European seas
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2023 (English)In: Frontiers in Marine Science, E-ISSN 2296-7745, Vol. 10, article id 1232888Article in journal, Editorial material (Other academic) Published
Place, publisher, year, edition, pages
Frontiers Media SA, 2023
Keywords
marine litter, microplastics, macroplastics, waste management, ecosystem modeling, ecosystem services, multicriteria decision analysis
National Category
Environmental Sciences
Identifiers
urn:nbn:se:kth:diva-333783 (URN)10.3389/fmars.2023.1232888 (DOI)001028789500001 ()2-s2.0-85164949280 (Scopus ID)
Note

QC 20230810

Available from: 2023-08-10 Created: 2023-08-10 Last updated: 2023-08-10Bibliographically approved
Nordstrand, J. & Dutta, J. (2023). Faster bipolar capacitive deionization with flow-through electrodes. Electrochimica Acta, 467, Article ID 143000.
Open this publication in new window or tab >>Faster bipolar capacitive deionization with flow-through electrodes
2023 (English)In: Electrochimica Acta, ISSN 0013-4686, E-ISSN 1873-3859, Vol. 467, article id 143000Article in journal (Refereed) Published
Abstract [en]

Capacitive deionization (CDI) is an emerging technology in water cleaning applications. Bipolar electrode modules are promising for upscaling CDI systems by applying a high voltage over a stack of cells. Previous experiments indicate around 3 times faster removal rate can be achieved with a 5-cell stack of flow-between electrodes. In this work, we present the first flow-through bipolar CDI design. Surprisingly, the effective average salt adsorption rate (ASAR) of a 5-cell stack was around 10 times higher per electrode mass. The flow-through design allows for faster ion transport to match the higher charging rate. Also, the floating electrodes discharge near-instantaneous by internal short-circuit upon the removal of potential, leaving almost twice as much time for charging in a cycle. Resistance is lowered due to the removal of internal compartments in the design, and the benefits of flow-through devices outweigh any potential higher energy cost of mass transport. The high voltage at the extreme electrodes poses a risk of electrode oxidation but optimized device operation controls this risk by constraining the voltage locally. For the same reason, the device is best adapted for the deionization of moderate to low ionic concentrations, such as river water, well water, or municipal water. In summary, this work provides a simpler yet highly effective way of scaling up CDI for water-cleaning applications.

Place, publisher, year, edition, pages
Elsevier BV, 2023
Keywords
Bipolar, Capacitive deionization, Desalination, Finite-element, Modeling
National Category
Analytical Chemistry Water Engineering
Identifiers
urn:nbn:se:kth:diva-336303 (URN)10.1016/j.electacta.2023.143000 (DOI)001068345300001 ()2-s2.0-85169594271 (Scopus ID)
Note

QC 20230913

Available from: 2023-09-13 Created: 2023-09-13 Last updated: 2023-10-16Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-0074-3504