A5015726803- Advanced Photocatalysis Techniques
- Covalent Organic Framework Applications
- CO2 Reduction Techniques and Catalysts
- Quantum Dots Synthesis And Properties
- Copper-based nanomaterials and applications
- TiO2 Photocatalysis and Solar Cells
- Carbon dioxide utilization in catalysis
- Metal-Organic Frameworks: Synthesis and Applications
- Chalcogenide Semiconductor Thin Films
- Advanced Nanomaterials in Catalysis
- Synthesis and Catalytic Reactions
- Perovskite Materials and Applications
- Catalytic C–H Functionalization Methods
- Asymmetric Hydrogenation and Catalysis
- Gas Sensing Nanomaterials and Sensors
- Sulfur-Based Synthesis Techniques
- ZnO doping and properties
- Luminescence and Fluorescent Materials
- Radical Photochemical Reactions
- Carbon and Quantum Dots Applications
- Porphyrin and Phthalocyanine Chemistry
- Chemical Synthesis and Reactions
- Ammonia Synthesis and Nitrogen Reduction
- Crystallization and Solubility Studies
- Synthesis of β-Lactam Compounds
Korea Research Institute of Chemical Technology
2016-2025
Indian Institute of Science Bangalore
2023
Government of the Republic of Korea
2016-2021
Daejeon University
2016-2021
Korea Institute of Science and Technology
2019
Daejin University
2016
Green Chemistry
2016
Korea Institute of Science & Technology Information
2015
Ewha Womans University
2008
Korea Advanced Institute of Science and Technology
2006
The photocatalyst–enzyme coupled system for artificial photosynthesis process is one of the most promising methods solar energy conversion synthesis organic chemicals or fuel. Here we report a novel graphene-based visible light active photocatalyst which covalently bonded chromophore, such as multianthraquinone substituted porphyrin with chemically converted graphene an efficient photosynthetic production formic acid from CO2. results not only show benchmark example material used in general...
The successful development of a photocatalyst/biocatalyst integrated system that carries out selective methanol production from CO2 is reported herein. fine-tuned was derived judicious combination graphene-based visible light active photocatalyst (CCG-IP) and sequentially coupled enzymes. covalent attachment isatin-porphyrin (IP) chromophore to chemically converted graphene (CCG) afforded newly developed CCG-IP for this research endeavor. current work represents new benchmark carrying highly...
The successful development of a triazine based covalent organic framework as an inexpensive and highly efficient visible light active flexible film photocatalyst for solar fuel production from CO<sub>2</sub>is described.
The utilization of CO2 for production solar fuels/chemicals is gaining increasing importance due to worldwide fossil-fuel shortage and global warming. As a means achieve this, we herein report on the synthesis development graphene-based visible light active photocatalyst (CCG–BODIPY) which chemically converted graphene (CCG) covalently bonded harvesting BODIPY molecule...
Abstract Covalent organic frameworks (COFs) have emerged as a promising light-harvesting module for artificial photosynthesis and photovoltaics. For efficient generation of free charge carriers, the donor–acceptor (D-A) conjugation has been adopted two-dimensional (2D) COFs recently. In 2D D-A COFs, photoexcitation would generate polaron pair, which is precursor to carriers lower binding energy than an exciton. Although character primary excitation species key factor in determining...
Solar light-driven fuel production from carbon dioxide using organic photocatalysts is a promising technique for sustainable energy sources. Band gap engineering in improving efficiency and fulfilling the requirements highly anticipated. Here, we present new strategy to engineer band covalent framework (COF) by varying push–pull electronic effect. To implement this strategy, have designed synthesized four different COFs tripodal amine...
The efficient and selective light-driven conversion of carbon dioxide to formate is a scientific challenge for green chemistry energy science, especially utilizing visible-light earth-abundant catalytic materials. In this report, two mononuclear Ni(II) complexes pyridylbenzimidazole (pbi) pyridylbenzothiazole (pbt), such as Ni(pbt)(pyS)2 (1) Ni(pbi)(pyS)2 (2) (pyS = pyridine-2-thiolate), were prepared their reactivities studied. Ni examined CO2 using eosin Y photosensitizer upon irradiation...
A porphyrinic metal–organic framework (PMOF) known as PCN-222(Zn) was chemically doped with a molecular Re(I) catalyst-bearing carboxylate anchoring group to form new type of (MOF)–Re(I) hybrid photocatalyst. The MOF-sensitized (PMOF/Re) prepared an archetypical CO2 reduction catalyst, (L)ReI(CO)3Cl (Re(I); L = 4,4′-dicarboxylic-2,2′-bipyridine), in the presence 3 vol % water produced CO no leveling-off tendency for 59 h give turnover number ≥1893 [1070 ± 80 μmol h–1 (g MOF)−1]. high...
Easy fabrication of multi-functional, free standing, centimeter sized, thin film photocatalyst for sustainable solar fine chemical synthesis and photoreduction CO<sub>2</sub> to formic acid under visible light.
Abstract The solar‐driven catalytic reduction of CO 2 to value‐added chemicals is under intensive investigation. reaction pathway via *OCHO intermediate (involving adsorbed through O‐binding) usually leads the two‐electron transfer product HCOOH. Herein, a single‐atom catalyst with dual‐atom‐sites featuring neighboring Sn(II) and Cu(I) centers embedded in C 3 N 4 framework developed characterized, which markedly promotes production HCHO four‐electron pathway. optimized achieves high...
Highly dispersed nanometer‐sized α‐Fe 2 O 3 (hematite) and γ‐Fe (maghemite) iron oxide particles were synthesized by the combustion method. Ferric nitrate was used as a precursor. X‐ray diffractometer study revealed phase purity of α‐ . Both products characterized using field emission scanning electron microscope transmission for particle size morphology. Necked structure morphology observed first time in both oxides. The range 25–55 nm. Photodecomposition H S hydrogen generation performed...
Abstract Dye‐sensitized photosynthesis : Eosin Y (EY), a dye photosensitizer, works efficiently as molecular photoelectrode by catalyzing the visible‐light‐driven electron‐transfer reaction for efficient regeneration of NADH through photosensitizer–electron relay dyad. Injection photosensitized electron resulted in highly accelerated NADH, which can be used glutamate dehydrogenase L ‐glutamate. magnified image
Novel in situ Se-doped carbon nitride (C3N4) nanosheets are synthesized for the first time by a facile one-pot two-step strategy. The as-prepared C3N4 show high visible light driven formic acid production rate of 1.001 × 105 μmol gcat–1 h–1. It represents highest value reported literature from CO2 harvesting photocatalysts. exceptional photocatalytic activity is largely attributed to selenium-doped conjugated system besides porous nanosheet morphology photocatalyst. presence midgap state...
The judicious utilization of solar light for the asymmetric synthesis optically active compounds by imitating natural photosynthesis introduces a new concept that harnesses this renewable energy in vitro ultimate transformation into chiral chemical bonds. Herein, we present comprehensive description such biomimetic endeavor towards design and construction an artificial system comprises efficient method nicotinamide cofactor (NADPH) regeneration under visible employing graphene-based...
Due to the pharmaceutical, biological, physical, and chemical properties of fluorinated compounds 1,4-NADH/NADPH, these species have attracted a lot attention from researchers across society. Despite their crucial significance, present methods regenerating cofactors (1,4-NADH/NADPH) as well inserting fluorine into organic suffer ruthless drawbacks. Herein, we designed highly efficient S-gC3N4@Fe2O3/LC photocatalyst, its in situ generations were accomplished by calcinations Fe2O3, melamine...
We have demonstrated the synthesis of nanostructured CdIn2S4 with a fascinating 'marigold flower' morphology using hydrothermal method, and mixed morphologies (flowers, spheres pyramids) microwave method. In synthesis, product was formed within 15 min, whereas by method more than 24 h required. various capping agents were used that result in different particle morphologies. Hydrothermal formation crystalline nanotubes methanol showed significant effect reaction medium on morphology....
A new potentially promising visible-light driven photobioreactor synthesizes fine chemical via photobiocatalysis by generating NADH in a non-enzymatic light-driven process and coupling it to the enzymatic dark reaction catalysis.