Author: tianli

Sun, Chang published the artcileImitated Core-Shell Molecularly Imprinted Membranes for Selective Separation Applications: A Synergetic Strategy by Polydopamine and SiO2, Quality Control of 7575-23-7, the main research area is silica polydopamine core shell molecularly imprinted membrane selective separation.

Development of high-efficiency separation materials with specific recognition sites has become an urgent and important task. Herein, a synergetic strategy based on polydopamine (pDA) and silicon dioxide nanoparticles (SiO2) was successfully designed and developed for the preparation of imitated core-shell-based cloxacillin-imprinted nanocomposite membranes (ICCIMs-D/S). Cloxacillin (Col) was selected as the template resulting from the potential threat to environment and human health. As to the synthesis procedure of ICCIMs-D/S, the pDA-modified layers were uniformly loaded onto substrate membranes by developing an elevated phase transformation method. Based on it, the synergy processes of pDA and SiO2 could be achieved on surface of porous membranes. The ICCIMs-D/S with Col-imprinted recognition sites were finally synthesized by the photo-initiated “”mercapto-alkenes click chem.”” method using methacrylic acid as functional monomers. Notably, the satisfactory rebinding selectivity (α>4.0) and permselectivity (β>4.0) with outstanding regeneration performance (only 5.11% decrease after ten regeneration cycles) indicated the superior selectivity and stability of the as-obtained ICCIMs-D/S. The preparation strategy and ICCIMs-D/S developed in this work is expected to provide a feasible idea for selective separation of Col from wastewater.

Journal of the Taiwan Institute of Chemical Engineers published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Quality Control of 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Mangoufis-Giasin, Iosif published the artcileDifferent promoting roles of ruthenium for the oxidation of primary and secondary alcohols on PtRu electrocatalysts, Safety of 3-Pentanol, the main research area is oxidation catalsyt primary econdary alc platinum ruthenium electrocatalyst.

This study shows remarkably different features between the oxidation of secondary and primary C3-C5 alcs. The oxidation of primary alcs. is controlled by the oxidative removal of blocking adsorbates, such as CO, formed after the dissociative adsorption of alc. mols. Conversely, secondary alcs. do not undergo dissociative adsorption and therefore their oxidation is purely controlled by the energetics of the elementary reaction steps. In this respect, a different role of Ru is revealed for the electrooxidation of primary and secondary alcs. on bimetallic Pt-Ru catalysts. Ru enhances the oxidation of primary alcs. via the established bifunctional mechanism, in which the adsorption of (hydr)oxide species that are necessary to remove the blocking adsorbates is favored. In contrast, the oxidation of secondary alcs. is enhanced by the Ru-assisted stabilization of an O-bound intermediate that is involved in the potential-limiting step. This alternative pathway enables the oxidation of secondary alcs. close to the equilibrium potential.

Journal of Catalysis published new progress about Adsorption. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Safety of 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Houseman, Benjamin T. published the artcileCarbohydrate arrays for the evaluation of protein binding and enzymatic modification, COA of Formula: C13H19NO3, the main research area is carbohydrate array protein binding.

This paper reports a chem. strategy for preparing carbohydrate arrays and utilizes these arrays for the characterization of carbohydrate-protein interactions. Carbohydrate chips were prepared by the Diels-Alder-mediated immobilization of carbohydrate-cyclopentadiene conjugates to self-assembled monolayers that present benzoquinone and penta(ethylene glycol) groups. Surface plasmon resonance spectroscopy showed that lectins bound specifically to immobilized carbohydrates and that the glycol groups prevented nonspecific protein adsorption. Carbohydrate arrays presenting ten monosaccharides were then evaluated by profiling the binding specificities of several lectins. These arrays were also used to determine the inhibitory concentrations of soluble carbohydrates for lectins and to characterize the substrate specificity of β-1,4-galactosyltransferase. Finally, a strategy for preparing arrays with carbohydrates generated on solid phase is shown. This surface engineering strategy will permit the preparation and evaluation of carbohydrate arrays that present diverse and complex structures.

Chemistry & Biology published new progress about Adsorption. 87905-98-4 belongs to class alcohols-buliding-blocks, name is Benzyl (5-hydroxypentyl)carbamate, and the molecular formula is C13H19NO3, COA of Formula: C13H19NO3.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Aghaei, Hamidreza published the artcileUse of H3PO4/ZrO2-TiO2-surfactant mixed oxide for catalytic vapor-phase dehydration of 1-octanol, SDS of cas: 111-87-5, the main research area is octanol phosphoric acid zirconium titanium dioxide surfactant dehydration catalyst.

Catalytic dehydration of 1-octanol over H3PO4/ZrO2-TiO2-surfactant (H3PO4/ZTS) mixed oxides at 350°C for production of 1-octene was investigated. ZrO2-TiO2 (ZT) with Zr:Ti molar ratio = 1:1 was prepared with and without cetylpyridinium bromide surfactant and modified by different concentration of H3PO4. These catalysts were characterized by several methods such as XRD, BET, pyridine adsorption, and NH3-TPD. The prepared catalysts with surfactant showed better selectivity and activity than the prepared catalysts without surfactant for 1-octene synthesis. Maximum selectivity to 1-octene in 1-octanol dehydration was attained over 15 weight% H3PO4/ZTS, while maximum conversion of 1-octanol with lower selectivity to 1-octene was achieved over 35 weight% H3PO4/ZTS. At 350°C and with WHSV 1.978 h-1, the maximum conversion of 1-octanol over 15 weight% H3PO4/ZTS was 68.8%, with 48.3% selectivity to 1-octene.

Reaction Kinetics, Mechanisms and Catalysis published new progress about Adsorption. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, SDS of cas: 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhou, Shenghui published the artcileZirconium-lignosulfonate polyphenolic polymer for highly efficient hydrogen transfer of biomass-derived oxygenates under mild conditions, Category: alcohols-buliding-blocks, the main research area is zirconium lignosulfonate polyphenolic polymer hydrogen transfer biomass oxygenate mild.

Both value-added utilization of low-rank renewable feedstocks to prepare catalytic materials and selective transformation of bioderived aldehydes are very attractive topics. Herein, lignosulfonate, a waste byproduct from the paper industry, was simply assembled with ZrCl4 under non-toxic hydrothermal conditions for scalable preparation of Zr-containing polyphenolic biopolymer catalysts (Zr-LS). Systematic characterizations indicated that the strong coordination between Zr4+ and phenolic hydroxyl groups in lignosulfonate led to the formation of strong Lewis acid-base couple sites (Zr4+-O2-) and porous inorganic-organic framework structure (mesopores centered at 6.1 nm), while the inherent sulfonic groups in lignosulfonate could serve as Bronsted acidic sites. The cooperative role of these versatile acid-base sites in Zr-LS afforded excellent catalytic performance for Meerwein-Ponndorf-Verley (MPV) reaction of a broad range of bioderived platform chems. under mild conditions (80 °C), especially of furfural (FF) to furfuryl alc. (FA), in quant. yields (96%) with high FA formation rate of 9600 μmol g-1 h-1 and TOF of 4.37 h-1. Kinetic studies revealed that the activation energy of the MPV reduction of FF was as low as 52.25 kJ/mol, accounting for the high reaction rate. Isotopic labeling experiments demonstrated direct hydrogen transfer from the α-C of 2-PrOH to the α-C of FF on acid-base sites was the rate-determining step. Moreover, Zr-LS showed good recyclability for at least seven reaction cycles.

Applied Catalysis, B: Environmental published new progress about Adsorption. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ohno, Tsutomu published the artcileAdsorption of Organic Acids and Phosphate to an Iron (Oxyhydr)oxide Mineral: A Combined Experimental and Density Functional Theory Study, Product Details of C4H6O5, the main research area is adsorption organic acid phosphate iron oxyhydroxide mineral soil.

The interaction of soil organic matter with mineral surfaces is a critical reaction involved in many ecosystem services, including stabilization of organic matter in the terrestrial carbon pool and bioavailability of plant nutrients. Using model organic acids typically present in soil solutions, this study couples laboratory adsorption studies with d. functional theory (DFT) to provide phys. insights into the nature of the chem. bonding between carboxylate functional groups and a model FeOOH cluster. Topol. determination of electron d. at bond critical points using quantum theory of atoms in mols. (QTAIM) anal. revealed that the presence of multiple bonding paths between the organic acid and the FeOOH cluster is essential in determining the competitive adsorption of organic acids and phosphate for FeOOH surface adsorption sites. The electron d. and Laplacian parameter values from QTAIM indicated that the primary carboxylate-FeOOH bond was more ionic than covalent in nature. The exptl. and computational results provide mol.-level evidence of the important role of electrostatic forces in the bonding between carboxylic acids and Fe-hydroxides. This knowledge may assist in the formulation of management studies to meet the challenges of maintaining ecosystems services in the face of a changing climate.

Journal of Physical Chemistry A published new progress about Adsorption. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Product Details of C4H6O5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Haque, Najirul published the artcileZn(II)-Embedded Nanoporous Covalent Organic Frameworks for Catalytic Conversion of CO2 under Solvent-Free Conditions, Recommanded Product: 3,5-Dimethylhex-1-yn-3-ol, the main research area is zinc embedded nanoporous covalent organic framework catalytic conversion CO2.

Covalent organic frameworks (COFs) have been gaining substantial attention over the past decade due to their developing crystalline porous polymeric nature linked by strong covalent bonds and widespread applications in various fields. Currently, three-dimensional COFs (3D COFs) are engaging the spotlight due to their distinctive porous features, greater surface area, and exceptional performances in comparison with formerly published two-dimensional (2D) frameworks with the AA-stacking layered mode. In this paper, we present, for the first time, a nanoporous 3D-COF-based zinc(II) catalyst (Zn@RIO-1), which shows an efficient pathway for the chem. conversion of carbon dioxide to produce α-alkylidene cyclic carbonates and oxazolidinones from propargylic alcs. The microporous material with a high surface area (312.61 m2/g) facilitates both types of catalytic reactions under atm. CO2 pressure. More importantly, easily recyclable and reusable catalysts produced moderate to high yields of desired carbonates as well as oxazolidinone products under solvent-free conditions. This study emphasizes the capability of nanoporous 3D-COF-based material in the catalysis field, more specifically in the field of CO2 capture and chem. fixation to fine chems. These results pave a spectacular pathway for the chem. fixation of CO2 into α-alkylidene cyclic carbonates and oxazolidinones from propargylic alcs. using 3D-COF as a potential heterogeneous ligand under sustainable conditions (i.e., solvent-free).

ACS Applied Nano Materials published new progress about Adsorption. 107-54-0 belongs to class alcohols-buliding-blocks, name is 3,5-Dimethylhex-1-yn-3-ol, and the molecular formula is C8H14O, Recommanded Product: 3,5-Dimethylhex-1-yn-3-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Esen, Cansu published the artcileThiol-ene polymer beads via liquid-liquid printing: armored interfaces and photopolymerization via graphitic carbon nitride, Name: Pentaerythritol tetra(3-mercaptopropionate), the main research area is carbon nitride polymer bead thiol ene photopolymerization.

Polymerization of multifunctional thiol-ene mols. is attractive as a proof of concept in photopolymerization, yet the formation of a bead structure is highly restricted. This manuscript will show graphitic carbon nitride based liquid-liquid printing and subsequent photopolymerization to form thiol-ene polymer beads with extreme simplicity and potential scalability.

Nanoscale Advances published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Name: Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lone, Irfan H. published the artcileQuenching assisted reverse micellar synthesis and electrical properties of high surface area BiFeO3 nanoparticles, COA of Formula: C8H18O, the main research area is bismuth iron oxide nanoparticle quenching elec property.

Multiferroic compounds are prime important materials for future electronic and magnetic devices and overcome the fundamental limits of conventional materials. In present work, we reported the preparation of purely one phase of nano-sized BiFeO3 compound by microemulsion micellar method for the first time by employing rapid quenching of sample at 500°C, that is the main driving force to get the pure phase of BiFeO3 nanoparticles at low temperature method. The nanoparticles that we obtained were almost uniform with sphere shaped and these prepare nanoparticles possess high surface. The increase in permittivity in the form of dielec. constants were reported that depends on temperature and frequency that supports the ferroelec. nature and was further confirmed by the ferroelec. loops even at the room temperature has been found in theses prepared nanoparticles.

Journal of Nanoscience and Nanotechnology published new progress about Adsorption. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Samanta, Archana published the artcileCharge Regulated Diffusion of Silica Nanoparticles into Wood for Flame Retardant Transparent Wood, Application of Pentaerythritol tetra(3-mercaptopropionate), the main research area is flame retardant transparent silica nanoparticle wood polymer biocomposite property.

The preparation of wood substrates modified by charged inorganic nanoparticles (NPs) diffusing into the internal cell wall structure is investigated for generating functional properties. The flammability problem of wood biocomposites is addressed. NPs applied from colloidal sols carry charge to stabilize them against aggregation. The influence of charge on particle diffusion and adsorption should play a role for their spatial distribution and localization in the wood substrate biocomposite. It is hypothesized that improved dispersion, infiltration, and stability of NPs into the wood structure can be achieved by charge control diffusion, also restricting NP agglomeration and limiting distribution to the wood cell wall. Cationic and anionic silica NPs of �0 nm are therefore allowed to diffuse into bleached wood. The influence of charge on distribution in wood is investigated as a function of initial sol concentration Transparent wood is fabricated by in situ polymerization of a thiol-ene in the wood pore space. These biocomposites demonstrate excellent flame retardancy with self-extinguishing characteristics. The approach has potential for com. fabrication of flame retardant transparent composites for glazing and other building applications.

Advanced Sustainable Systems published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Application of Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts