A5011674136- Advanced Photocatalysis Techniques
- Lignin and Wood Chemistry
- Electrocatalysts for Energy Conversion
- TiO2 Photocatalysis and Solar Cells
- Oxidative Organic Chemistry Reactions
- Advanced Nanomaterials in Catalysis
- Analytical Chemistry and Sensors
- Radical Photochemical Reactions
- Catalysis for Biomass Conversion
- Nanomaterials for catalytic reactions
- Biofuel production and bioconversion
- Biochemical and biochemical processes
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Enzyme-mediated dye degradation
- Electrochemical sensors and biosensors
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanocluster Synthesis and Applications
- Catalysis and Hydrodesulfurization Studies
- Aerogels and thermal insulation
- Sulfur-Based Synthesis Techniques
- Catalytic Processes in Materials Science
- Molecular Junctions and Nanostructures
SUNY College of Environmental Science and Forestry
2019-2025
State University of New York
2019-2025
York University
2019-2025
Chiang Mai University
2023
Purchase College
2022
Polymer Research Institute
2020
The University of Texas at San Antonio
2017-2018
University of Florida
2014-2016
Gainesville Obstetrics & Gynecology
2015
Politecnico di Milano
2011
Hexadecanethiol (n-C16), 2,2-dimethylhexadecane-1-thiol (DMC16), and the multidentate thiol-based ligands 2-tetradecylpropane-1,3-dithiol (C16C2), 2-methyl-2-tetradecylpropane-1,3-dithiol (C16C3), 1,1,1-tris(mercaptomethyl)pentadecane (t-C16) were evaluated for their ability to stabilize large gold nanoparticles (>15 nm) in organic solution. Citrate-stabilized (20−50 treated with extracted from aqueous solution dispersed into toluene. The degree of aggregation was monitored visually further...
Deep eutectic solvents (DESs) are effective for biomass conversion and have been proposed as alternatives to ionic liquids (ILs). Herein, we first report an pretreatment of woody using a novel hardwood lignin-based DES prepared from p-hydroxybenzoic acid (PB) choline chloride (ChCl), which used the hydrogen bond donor acceptor, respectively. The impacts ChCl-PB on structural properties enzymatic hydrolysis poplar wood were comprehensively evaluated. performance was also compared with two...
The long lifetime of Mn 2+ dopants (∼ms) facilitates charge separation and electron transfer in doped 1D CdS nanorods (NRs) with Pt tips ( i.e. , Mn:CdS-Pt NRs), which significantly enhances photocatalytic water splitting for hydrogen generation.
Molecular-based dye-sensitized photoelectrochemical cells (DSPECs) have traditionally targeted solar-driven water splitting for the conversion of solar energy into fuels in aqueous media. This work reports use a DSPEC-type photoanode specifically designed to carry out chemoselective oxidation benzylic alcohol moieties lignin model compounds and real organic The TiO2-based incorporates surface-bound Ru(II)-based photocatalyst solution-dissolved hydrogen atom transfer (HAT) co-catalyst perform...
Selective cleavage of C–C bonds can be a valuable tool for various applications including polymer degradation and biomass utilization. Performing chemical transformations involving bond steps under mild conditions ambient temperature remains challenging due to the high dissociation energies bond. This fundamental challenge solved by coupling dye-sensitized photoelectrochemical cell (DSPEC) system, that generally targets water splitting reaction, with hydrogen atom transfer (HAT) mediator...
The seed-mediated method is a general procedure for the synthesis of gold nanorods (Au NRs), and reducing agents such as ascorbic acid (AA) hydroquinone (HQ) are widely used growth process. Further, they mild agents; however, when AA used, controlling size Au NRs with higher aspect ratio (localized surface plasmon resonance (LSPR) peak, λLmax > 900 nm) challenging because it results in faster rate NRs. In contrast, HQ can be synthesized slows down greatly enhanced λLmax. However, increase...
Three new push–pull molecules having either pyridyl or N,N-dimethylanilino groups as electron-donor moieties and the p-iodo-tetrafluorophenyl ring an electron-acceptor group have been synthesized their single crystal X-ray structures are reported. Halogen bonding drives self-assembly of these in solid state giving rise to head-to-tail halogen-bonded infinite polar chains which crystallize antiparallel arrangement. The three nonlinear optical (NLO)-phores show high hyperpolarizabilities at...
Layer-by-Layer (LbL) polyelectrolyte self-assembly occurs by the alternate exposure of a substrate to solutions oppositely charged polyelectrolytes or polyions. Here, we report application LbL construct chromophore–catalyst assemblies consisting cationic polystyrene-based Ru polychromophore (PS-Ru) and [Ru(tpy)(2-pyridyl-N-methylbenzimidazole) (OH2)]2+ water oxidation catalyst (RuC), codeposited with poly(acrylic acid) (PAA) as an inert polyanion. These are deposited onto planar indium tin...
We developed a facile photoinduced disproportionation approach to generate radical anions of pyrrole derivatives for the reduction aryl halides, as well formation desired heterocyclic product without addition any photocatalysts.
An extremely facile ligand-mediated synthesis of 2D CsPbX 3 (X = Cl, Br, or mixture thereof) nanoplatelets (NPLs) and Mn-doped NPLs was developed in an open vessel under ambient conditions, which is potentially scalable toward industrial applications.
Visible-light-driven organic oxidations carried out under mild conditions offer a sustainable approach to performing chemical transformations important the industry. This work reports an efficient photocatalytic benzyl alcohol oxidation process using one-dimensional (1D) TiO2 nanorod (NR)-based photoanodes with surface-adsorbed ruthenium polypyridyl photocatalysts at room temperature. The photocatalyst bis(2,2′-bipyridine)(4,4′-dicarboxy-2,2′-bipyridine)Ru(II) (RuC) was covalently anchored...
This study reports the solar light-driven activation of a bicyclic aminoxyl mediator to achieve C–C bond cleavage lignin model compound at room temperature using donor–π-conjugated bridge–acceptor organic dye-based photoelectrochemical system.
ConspectusThe use of sunlight to make chemical fuels (i.e., solar fuels) is an attractive approach in the quest develop sustainable energy sources. Using nature as a guide, assemblies for artificial photosynthesis will need perform multiple functions. They be able harvest light across broad region spectrum, transport excited-state charge-separation sites, and then store redox equivalents catalytic reactions that produce fuels. This multifunctional behavior require assimilation components...
The organic chromophore 2,2′-(benzo[c][1,2,5]thiadiazole-4,7-diyl)bis(thiophene-3-carboxylic acid), T2-BTD, was prepared and investigated along with metal complex [Ru(bda)(pyP)2] (bda = 2,2′-bipyridine-6,6′-dicarboxylate; pyP 3-(pyridine-4-yloxy)propyl)phosphonic RuC, for light-driven water splitting in dye-sensitized photoelectrochemical cells. resulting co-loaded plus catalyst surface assembly evaluated by photocurrent transient measurement direct O2 detection using a collector–generator...
A polystyrene-based chromophore-catalyst assembly (poly-2) has been synthesized and assembled at a mesoporous metal oxide photoanode. The contains water oxidation catalyst centers based on [Ru(trpy) (phenq)]2+ (Ru-Cat) [Ru(bpy)3]2+ derivatives (Ru-C) as chromophores (trpy= 2,2';6,2″- terpyridine, phenq = 2-(quinol-8'-yl)-1,10-phenanthroline bpy 2,2'-bipyridine). photophysical electrochemical properties of the polychromophore-oxidation were investigated in solution surface films....
This manuscript describes a simple one-pot reaction that affords cuboid iron−manganese oxide nanoparticles with unprecedented dimensions as large 33 ± 5 nm (average body-centered diagonal) in monodisperse form. Our unique synthetic method, which requires no multiple growth steps typical of other methods, utilizes the thermal decomposition metal precursor complexes presence specifically tailored surfactants and/or mixtures surfactants. The size and shape these unusually magnetic (MNPs) can be...
This letter describes the preparation of monolayer-protected nanoparticle clusters (MPCs) from adsorption n-tetradecanethioacetate onto colloidal gold nanoparticles using Brust-Schiffrin two-phase synthesis method. The MPCs were characterized by transmission electron microscopy (TEM), ultraviolet-visible (UV-vis) spectroscopy, (1)H nuclear magnetic resonance (NMR) X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared (FTIR) spectroscopy. These studies found that monolayer...
This paper describes the photophysical and photoelectrochemical characterization of a light harvesting polychromophore array featuring polyfluorene backbone with covalently attached Ru(II) polypyridyl complexes (PF-Ru-A), adsorbed on surface mesostructured TiO2 (PF-Ru-A//TiO2). The polymer is characterized by transmission electron microscopy (TEM), scanning (SEM), attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy, providing evidence for morphology mode binding....
Abstract A polychromophoric light‐harvesting assembly featuring a polystyrene (PS) backbone with ionic carboxylate‐functionalized Ru II polypyridyl complexes as pendant groups (PS‐Ru‐A) was synthesized and successfully anchored onto mesoporous structured TiO 2 films (TiO //PS‐Ru‐A). Studies of the resulting //PS‐Ru‐A carried out by transmission electron microscopy (TEM), scanning (SEM), atomic force (AFM) confirmed that carboxylated from PS‐Ru‐A led to surface immobilization on film....