A Visible Light-Responsive Mixed-Valence Bimetallic Eu-Zr MOF-Based Nanoarchitecture toward Efficacious H2O2 and H2 Production Srabani Dash, Suraj Prakash Tripathy, Satyabrata Subudhi, Kulamani Parida Industrial and Engineering Chemistry Research, 2025 High Resolution Image Download MS PowerPoint Slide A mixed-valence bimetallic Eu/Zr MOF has been fabricated via a one-step solvothermal method by incorporating Eu 3+ ions into the Zr-MOF, thereby making a single-component photocatalyst that can be utilized toward robust photon utilization from the visible light spectrum for the photocatalytic production of green energy like H 2 and H 2 O 2 . The one-step synthesized bimetallic Eu/Zr-MOF exhibits more visible light captivation properties along with improved charge carrier separation, confined band gap, and excellent ligand-to-metal charge transfer (LMCT) because of the existence of an interconvertible Eu 3+ /Eu 2+ ion pair compared with the pristine MOF counterparts. The addition of Eu ions directed to an upsurge in the electron density around Zr 4+ ion, as seen from XPS analysis. Moreover, the introduction of Eu 3+ enhanced the exciton segregation, as seen from PL and EIS analyses, thereby leading to superior catalytic performances. An increased photocatalytic H 2 generation efficacy of 331.26 μmol h –1 (ACE = 2.42%) was demonstrated by the synthesized EZUNH-2 MOF, which is approximately three times greater than pristine MOFs. As a result, the bimetallic EZUNH-2 MOF can be easily utilized as a robust photocatalyst that has increased inclinations to produce H 2 O 2 at 35.2 μmol h –1, around 4 times more than that of the parent material. Consequently, the one-pot synthesized bimetallic MOF paves a suitable mechanistic pathway for paramount performance toward photocatalytic H 2 O 2 and H 2 production.
Inexpensive Carbon Based Co-Catalyst Modified Zr-MOF Towards Photocatalytic H2O2 and H2 Production Suraj Prakash Tripathy, Srabani Dash, Asheli Ray, Satyabrata Subudhi, Kulamani Parida Chemistry an Asian Journal, 2025 The photocatalytic H2O2 and H2 production are the utmost encouraging paths to overcome the imminent energy crisis. For accomplishing these goals the photocatalysts needs to be stable, trap photons and superior exciton separation, yet these properties are scanty for aqueous stable UiO‐66‐NH2. Hence, UiO‐66‐NH2 is armed with inexpensive Carbon nanoparticles that were incorporated through facile solvothermal procedure are employed towards photocatalytic H2 and H2O2 production. The UC‐2 composite exhibits improved photocatalytic activity, which was ascribed to the composites capacity to suppress exciton re‐combination, enhanced photon capture and to facilitate quicker charge transfer that was observed from UV‐Vis DRS, EIS, PL, TRPL and transient photocurrent analysis. Composite UC‐2 exhibits an H2O2 generation rate of 33.2 μmol h−1 in an O2 saturated conditions with isopropyl alcohol and water underneath visible light irradiation. This H2O2 generation rate was nearly three folds higher than the pristine UiO‐66‐NH2 MOF. Moreover, the produced materials were subjected to a photocatalytic H2 evolution research, and similar results were obtained, indicating that UC‐2 has the maximum H2 evolution capacity at 298.1 μmol h−1. Typically, the light trapping tendency, remarkable electron transfer capacity and electron capture capacity of the carbon NPs based co‐catalyst aids to improve the overall photo‐reaction performance thereby producing superior photocatalytic H2O2 and H2 as a sustainable energy alternative.
A Visible Light-Driven α-MnO2/UiO-66-NH2 S-Scheme Photocatalyst toward Ameliorated Oxy-TCH Degradation and H2 Evolution Srabani Dash, Suraj Prakash Tripathy, Satyabrata Subudhi, Pragyandeepti Behera, Bhagyashree Priyadarshini Mishra, Jayashree Panda, Kulamani Parida Langmuir, 2024 Photocatalytic hydrogen production and pollutant degradation using a heterogeneous photocatalyst remains an alternative route for mitigating the impending pollution and energy crisis. Hence, the development of cost-effective and environmentally friendly semiconducting materials with high solar light captivation nature is imperative. To overcome this challenge, α-MnO2 nanorod (NR)-modified MOF UiO-66-NH2 (UNH) was prepared via a facile solvothermal method, which is efficient toward H2 evolution and oxy-tetracycline hydrochloride (O-TCH) degradation. The field-emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HR-TEM) results of the α-MnO2@UNH (MnU) hybrid reveals its nanorod embedded in MOF matrix, and the X-ray photoelectron spectroscopy (XPS) result confirms the interaction of UNH moiety with α-MnO2 NRs. Additionally, the outstanding separation of photogenerated excitons and the charge-transfer efficacy are further validated by photoluminescence (PL), time-resolved photoluminescence (TRPL), electrochemical impedance spectroscopy (EIS), and transient photocurrent analysis, which are the key causes for photoactivity augmentation in the MnU composites. The MnU-2 composite shows a superior O-TCH degradation efficiency of 93.23% and an excellent H2 production rate of about 410.6 μmol h-1 upon light irradiation. This study provides significant evidence in favor of the suggested mediator-free S-scheme-adapted charge migration path, and it effectively explains the enhanced exciton separation leading to extraordinary catalytic efficiency of the proposed composite.
MgIn2S4/UiO-66-NH2MOF-Based Heterostructure: Visible-Light-Responsive Z-Scheme-Mediated Synergistically Enhanced Photocatalytic Performance toward Hydrogen and Oxygen Evolution Suraj Prakash Tripathy, Satyabrata Subudhi, Asheli Ray, Pragyandeepti Behera, Gayatri Swain, Manjari Chakraborty, Kulamani Parida Langmuir, 2023 Hydrogen and oxygen evolution via photocatalytic water splitting remains the quintessential alternative to fossil fuels. Photocatalysts must be sufficiently robust, competent, and productive toward harnessing sunlight in order to utilize the solar spectrum for maximal photocatalytic output. Herein, we have fabricated the MgIn2S4/UiO-66-NH2 composite via a facile solvothermal route and have determined its efficacy toward light-induced H2 and O2 generation reactions through water splitting with the aid of different sacrificial agents. Initially, the formation of pristine and composite materials was ascertained by PXRD, FTIR, etc. Moreover, with the aid of sophisticated morphological characterization techniques (FESEM and HRTEM), the intricate interaction between MgIn2S4 and UiO-66-NH2 was revealed. Additionally, the XPS studies suggested the effective interaction between the individual components with binding energy shifting suggesting the transfer of electrons from Zr-MOF to MgIn2S4. The PL and electrochemical aspects supported the effective photogenerated charge segregation in the prepared composite leading to superior photocatalytic outputs. Amidst the prepared composites of (3, 5, and 7 wt %) MgIn2S4/UiO-66-NH2, the 5 wt % or UM-2 composite displays optimal H2 and O2 evolution performances of 493.8 and 258.6 μmol h-1 (4-fold greater than for pristine MgIn2S4 and UiO-66-NH2), respectively. The nanocomposite's enhanced performance is indeed a consequence of the coadjuvant interaction among pristine UiO-66-NH2 and MgIn2S4 components that transpires via the Z-scheme-mediated charge transfer by enabling facile exciton segregation and channelization. Moreover, the composite inherited the remarkable framework stability of parent Zr-MOF, and the MgIn2S4 insertion had a negligible impact on the framework integrity. This work will offer a valuable model for developing robust Zr-MOF-based nanocomposite photocatalysts and evaluating their superior performance toward photocatalytic water redox reactions.
Multivariate Co-Zn-MOF-Derived Co/C/N-ZnO Nanoflakes Decorated with NixPy: A Stupefying Photocatalyst for Pharmaceutical Pollutant Degradation and Hydrogen Evolution Asheli Ray, Suraj Prakash Tripathy, Srabani Dash, Satyabrata Subudhi, Kulamani Parida Industrial and Engineering Chemistry Research, 2023 Environmental pollution as well as energy scarcity has become a major problem in the present scenario. To alleviate this issue, among numerous techniques, photocatalytic pollutant degradation and alternative energy generation have turned out to be more competent and cost-effective. Thus, ample photocatalysts have been evolving to date, yet they have not been able to accomplish the intricacy. In this regard, a mixed-metal metal–organic framework (MOF)-derived Co/C/N–ZnO nanoflakes were engineered with Ni x P y cocatalyst in situ coupling. Typically, Co, C, and N were doped in the ZnO lattice through calcination of Co–Zn-MOF, which significantly narrowed the ZnO band gap. Further, the introduction of Ni x P y as a sturdy cocatalyst boosted the photon absorption capability in the visible region. Moreover, the presence of Co, C, N, and Ni–P constituents promoted tremendous charge carrier separation and transfer, which were established from photoluminescence (PL), X-ray photoelectron spectroscopy (XPS), and electrochemical study, thereby leading to enhanced photocatalytic performance. Hence, altogether, these features collaborate to enhance the photocatalytic output of as-prepared composite materials toward norfloxocin (NFX) degradation and hydrogen (H 2 ) evolution. The NFX degradation rate for the optimized composite Co/C/N-ZNP-2 was detected as 91.2%, and the H 2 generation rate was found to be 15078 μmol h –1 g –1, which were nearly two times higher than those of the neat Co/C/N–ZnO material, respectively. Consequently, the porous and nanoflake morphology accompanied by populous active sites as well as the existence of dopants and Ni x P y cocatalyst on Co/C/N–ZnO makes it an efficacious photocatalyst, which expedites the whole reaction mechanism approach toward pharmaceutical pollutant remediation and green-energy generation.
Ti 3 C 2 MXene-Integrated MOF-Derived C, N–ZnO@BCN Nanocomposites for Enhanced Photocatalytic H 2 O 2 Production and H 2 Evolution P Behera, A Ray, SP Tripathy, S Subudhi, L Acharya, L Biswal, S Dash, ... ACS Applied Engineering Materials 3 (11), 4269-4281 , 2025 2025 Citations: 2
A Visible Light-Responsive Mixed-Valence Bimetallic Eu–Zr MOF-Based Nanoarchitecture toward Efficacious H 2 O 2 and H 2 Production S Dash, SP Tripathy, S Subudhi, K Parida Industrial & Engineering Chemistry Research 64 (11), 5841-5853 , 2025 2025 Citations: 17
Multivariate Co–Zn-MOF-Derived Co/C/N–ZnO Nanoflakes Decorated with Ni x P y : A Stupefying Photocatalyst for Pharmaceutical Pollutant Degradation and … A Ray, SP Tripathy, S Dash, S Subudhi, K Parida Industrial & Engineering Chemistry Research 63 (16), 7088-7102 , 2024 2024 Citations: 5
A Visible Light-Driven α-MnO 2 /UiO-66-NH 2 S-Scheme Photocatalyst toward Ameliorated Oxy-TCH Degradation and H 2 Evolution S Dash, SP Tripathy, S Subudhi, P Behera, BP Mishra, J Panda, K Parida Langmuir 40 (8), 4514-4530 , 2024 2024 Citations: 20
MgIn 2 S 4-decorated MOF-derived C/N–CeO 2 nanorod heterojunctions as efficient photocatalysts towards H 2 O 2 production reactions and H 2 evolution reactions J Panda, P Behera, S Subudhi, SP Tripathy, G Swain, S Dash, K Parida Materials Advances 5 (11), 4865-4877 , 2024 2024 Citations: 14
Aggrandized photocatalytic H 2 O 2 and H 2 production by a TiO 2/Ti 3 C 2–TiC/mixed metal Ce–Zr MOF composite: an interfacial engineered solid-state-mediator-based Z-scheme … L Biswal, SP Tripathy, S Dash, S Das, S Subudhi, K Parida Materials Advances 5 (10), 4452-4466 , 2024 2024 Citations: 26
Ag/Pd bimetallic nanoparticle-loaded Zr-MOF: an efficacious visible-light-responsive photocatalyst for H 2 O 2 and H 2 production S Dash, SP Tripathy, S Subudhi, L Acharya, A Ray, P Behera, K Parida Energy Advances 3 (5), 1073-1086 , 2024 2024 Citations: 27
Ni x P y Cocatalyst-Loaded MOF-Derived C/N–ZnO@B-Doped g-C 3 N 4 -Based Z-Scheme Nanohybrid: A Combinatorically Enhanced Ternary Photocatalyst … P Behera, A Ray, SP Tripathy, S Subudhi, L Acharya, K Parida ACS Applied Engineering Materials 1 (11), 2876-2891 , 2023 2023 Citations: 28
MgIn 2 S 4 /UiO-66-NH 2 MOF-Based Heterostructure: Visible-Light-Responsive Z-Scheme-Mediated Synergistically Enhanced Photocatalytic Performance toward … SP Tripathy, S Subudhi, A Ray, P Behera, G Swain, M Chakraborty, ... Langmuir 39 (21), 7294-7306 , 2023 2023 Citations: 65
ZIF-8 derived porous C, N co-doped ZnO modified Bg-C3N4: A Z-Scheme charge dynamics approach operative towards photocatalytic hydrogen evolution and ciprofloxacin degradation P Behera, A Ray, SP Tripathy, L Acharya, S Subudhi, K Parida Journal of Photochemistry and Photobiology A: Chemistry 436, 114415 , 2023 2023 Citations: 60
Inner transition metal-modulated metal organic frameworks (IT-MOFs) and their derived nanomaterials: a strategic approach towards stupendous photocatalysis J Panda, SP Tripathy, S Dash, A Ray, P Behera, S Subudhi, K Parida Nanoscale 15 (17), 7640-7675 , 2023 2023 Citations: 40
Hydrolytically stable mixed ditopic linker based zirconium metal organic framework as a robust photocatalyst towards Tetracycline Hydrochloride degradation and hydrogen evolution SP Tripathy, S Subudhi, A Ray, P Behera, J Panda, S Dash, K Parida Journal of colloid and interface science 629, 705-718 , 2023 2023 Citations: 44
MOF Derived C/N Co‐Doped ZnO Modified through Facile In Situ Coupling with Ni x P y toward Photocatalytic H 2 O 2 Production and H 2 Evolution Reaction A Ray, S Subudhi, SP Tripathy, L Acharya, K Parida Advanced Materials Interfaces 9 (34), 2201440 , 2022 2022 Citations: 45
Visible light active titanate perovskites: An overview on its synthesis, characterization and photocatalytic applications L Paramanik, S Subudhi, KM Parida Materials Research Bulletin 155, 111965 , 2022 2022 Citations: 62
Oxygen vacancy rich α-MnO2@ B/Og-C3N4 photocatalyst: A thriving 1D-2D surface interaction effective towards photocatalytic O2 and H2 evolution through Z-scheme charge dynamics BP Mishra, L Acharya, S Subudhi, K Parida International Journal of Hydrogen Energy 47 (75), 32107-32120 , 2022 2022 Citations: 43
MOF derived nano-materials: A recent progress in strategic fabrication, characterization and mechanistic insight towards divergent photocatalytic applications P Behera, S Subudhi, SP Tripathy, K Parida Coordination Chemistry Reviews 456, 214392 , 2022 2022 Citations: 191
Mixed-valence bimetallic Ce/Zr MOF-based nanoarchitecture: a visible-light-active photocatalyst for ciprofloxacin degradation and hydrogen evolution SP Tripathy, S Subudhi, A Ray, P Behera, A Bhaumik, K Parida Langmuir 38 (5), 1766-1780 , 2022 2022 Citations: 180
Hydrolytically stable citrate capped Fe3O4@ UiO-66-NH2 MOF: A hetero-structure composite with enhanced activity towards Cr (VI) adsorption and photocatalytic H2 evolution SP Tripathy, S Subudhi, S Das, MK Ghosh, M Das, R Acharya, R Acharya, ... Journal of Colloid and Interface Science 606, 353-366 , 2022 2022 Citations: 179
Isotherms, thermodynamics and mechanism studies on adsorption of Cr (VI) over a metal organic framework UiO-66-NH2 from aqueous environment R Acharya, M Das, SP Tripathy, S Subudhi, KM Parida, R Acharya Proceedings of the tenth DAE-BRNS biennial symposium on emerging trends in … , 2022 2022
Metal organic framework-based Janus nanomaterials: rational design, strategic fabrication and emerging applications SP Tripathy, S Subudhi, A Ray, P Behera, K Parida Dalton Transactions 51 (14), 5352-5366 , 2022 2022 Citations: 33
MOST CITED SCHOLAR PUBLICATIONS
MOF derived nano-materials: A recent progress in strategic fabrication, characterization and mechanistic insight towards divergent photocatalytic applications P Behera, S Subudhi, SP Tripathy, K Parida Coordination Chemistry Reviews 456, 214392 , 2022 2022 Citations: 191
UiO-66-NH 2 Metal–Organic Frameworks with Embedded MoS 2 Nanoflakes for Visible-Light-Mediated H 2 and O 2 Evolution S Subudhi, G Swain, SP Tripathy, K Parida Inorganic Chemistry 59 (14), 9824-9837 , 2020 2020 Citations: 190
Mixed-valence bimetallic Ce/Zr MOF-based nanoarchitecture: a visible-light-active photocatalyst for ciprofloxacin degradation and hydrogen evolution SP Tripathy, S Subudhi, A Ray, P Behera, A Bhaumik, K Parida Langmuir 38 (5), 1766-1780 , 2022 2022 Citations: 180
Hydrolytically stable citrate capped Fe3O4@ UiO-66-NH2 MOF: A hetero-structure composite with enhanced activity towards Cr (VI) adsorption and photocatalytic H2 evolution SP Tripathy, S Subudhi, S Das, MK Ghosh, M Das, R Acharya, R Acharya, ... Journal of Colloid and Interface Science 606, 353-366 , 2022 2022 Citations: 179
HPW-Anchored UiO-66 Metal–Organic Framework: A Promising Photocatalyst Effective toward Tetracycline Hydrochloride Degradation and H 2 Evolution via Z … S Subudhi, S Mansingh, G Swain, A Behera, D Rath, K Parida Inorganic Chemistry 58 (8), 4921-4934 , 2019 2019 Citations: 177
Metal oxide integrated metal organic frameworks (MO@ MOF): rational design, fabrication strategy, characterization and emerging photocatalytic applications S Subudhi, SP Tripathy, K Parida Inorganic Chemistry Frontiers 8 (6), 1619-1636 , 2021 2021 Citations: 171
A type-II interband alignment heterojunction architecture of cobalt titanate integrated UiO-66-NH2: A visible light mediated photocatalytic approach directed towards … S Subudhi, L Paramanik, S Sultana, S Mansingh, P Mohapatra, K Parida Journal of colloid and interface science 568, 89-105 , 2020 2020 Citations: 151
A mechanistic approach towards the photocatalytic organic transformations over functionalised metal organic frameworks: a review S Subudhi, D Rath, KM Parida Catalysis Science & Technology 8 (3), 679-696 , 2018 2018 Citations: 143
The fabrication of Au/Pd plasmonic alloys on UiO-66-NH 2: an efficient visible light-induced photocatalyst towards the Suzuki Miyaura coupling reaction under ambient conditions S Subudhi, S Mansingh, SP Tripathy, A Mohanty, P Mohapatra, D Rath, ... Catalysis Science & Technology 9 (23), 6585-6597 , 2019 2019 Citations: 121
Highlights of the characterization techniques on inorganic, organic (COF) and hybrid (MOF) photocatalytic semiconductors S Subudhi, SP Tripathy, K Parida Catalysis Science & Technology 11 (2), 392-415 , 2021 2021 Citations: 110
Inter-MOF hybrid (IMOFH): A concise analysis on emerging core–shell based hierarchical and multifunctional nanoporous materials SP Tripathy, S Subudhi, K Parida Coordination Chemistry Reviews 434, 213786 , 2021 2021 Citations: 82
Cerium-Based Metal–Organic Framework Nanorods Nucleated on CeO 2 Nanosheets for Photocatalytic N 2 Fixation and Water Oxidation S Mansingh, S Subudhi, S Sultana, G Swain, K Parida ACS Applied Nano Materials 4 (9), 9635-9652 , 2021 2021 Citations: 75
A plasmonic AuPd bimetallic nanoalloy decorated over a GO/LDH hybrid nanocomposite via a green synthesis route for robust Suzuki coupling reactions: a paradigm shift towards a … M Sahoo, S Mansingh, S Subudhi, P Mohapatra, K Parida Catalysis Science & Technology 9 (17), 4678-4692 , 2019 2019 Citations: 73
Bandgap engineering via boron and sulphur doped carbon modified anatase TiO 2: a visible light stimulated photocatalyst for photo-fixation of N 2 and TCH degradation S Mansingh, KK Das, A Behera, S Subudhi, S Sultana, K Parida Nanoscale Advances 2 (5), 2004-2017 , 2020 2020 Citations: 66
MgIn 2 S 4 /UiO-66-NH 2 MOF-Based Heterostructure: Visible-Light-Responsive Z-Scheme-Mediated Synergistically Enhanced Photocatalytic Performance toward … SP Tripathy, S Subudhi, A Ray, P Behera, G Swain, M Chakraborty, ... Langmuir 39 (21), 7294-7306 , 2023 2023 Citations: 65
Visible light active titanate perovskites: An overview on its synthesis, characterization and photocatalytic applications L Paramanik, S Subudhi, KM Parida Materials Research Bulletin 155, 111965 , 2022 2022 Citations: 62
ZIF-8 derived porous C, N co-doped ZnO modified Bg-C3N4: A Z-Scheme charge dynamics approach operative towards photocatalytic hydrogen evolution and ciprofloxacin degradation P Behera, A Ray, SP Tripathy, L Acharya, S Subudhi, K Parida Journal of Photochemistry and Photobiology A: Chemistry 436, 114415 , 2023 2023 Citations: 60
MOF Derived C/N Co‐Doped ZnO Modified through Facile In Situ Coupling with Ni x P y toward Photocatalytic H 2 O 2 Production and H 2 Evolution Reaction A Ray, S Subudhi, SP Tripathy, L Acharya, K Parida Advanced Materials Interfaces 9 (34), 2201440 , 2022 2022 Citations: 45
Hydrolytically stable mixed ditopic linker based zirconium metal organic framework as a robust photocatalyst towards Tetracycline Hydrochloride degradation and hydrogen evolution SP Tripathy, S Subudhi, A Ray, P Behera, J Panda, S Dash, K Parida Journal of colloid and interface science 629, 705-718 , 2023 2023 Citations: 44
Oxygen vacancy rich α-MnO2@ B/Og-C3N4 photocatalyst: A thriving 1D-2D surface interaction effective towards photocatalytic O2 and H2 evolution through Z-scheme charge dynamics BP Mishra, L Acharya, S Subudhi, K Parida International Journal of Hydrogen Energy 47 (75), 32107-32120 , 2022 2022 Citations: 43
