Layered molybdenum disulfide/reduced graphene oxide (MoS2/RGO) nanocomposites were synthesized by solvothermal method, and were characterized by high-resolution transmission electron microscopy (HRTEM), field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), X-rayphotoelec...
An intriguing and operationally simple direct benzylation of hydroquinones with benzhydryl alcohols has been developed using PTSA in water, affording functionalized hydroquinones in good to excellent yields. The advantages of being environmentally benign, metal-free, base-free, easy workup and h...
Few reports about the biosynthesis of α-arbutin using amylosucrase are available. In this work, an amylosucrase from Cellulomonas carboniz T26, CcAS, was identified for highly efficient synthesis of α-arbutin using 20 mM sucrose and 5 mM hydroquinone as a glucosyl donor and acceptor, respectiv...
The electrochemical study of Catechol (CC) was studied in presence of Hydroquinone (HQ) using poly(murexide) modified glassy carbon electrode (MGCE) by cyclic voltammetric study. The modified electrode exhibited good affirmative response towards the electro chemical oxidation of CC in presence o...
This work describes a simple and sensitive fluorescent method for detection of hydroquinone utilizing conjugated polymer nanoparticles (CPNs). The CPNs serve both as a catalyst to accelerate the conversion of hydroquinone to benzoquinone and a fluorescent probe. In the presence of hydroquinone, ...
Paracetamol (acetaminophen) is one of the most frequently used analgesic and antipyretic drugs. This work deals with ultrasound assisted synthesis (UAS) of paracetamol from hydroquinone using ammonium acetate as an amidating agent. The optimization of various reaction and ultrasound parameters w...
In this study, the authors report the use of the date stones as a raw material for the production of activated carbon (AC) using the physical activation. The as prepared activated carbon were first characterized using X-ray diffraction (XRD), Fourier Transform Infra-Red (FTIR) Spectroscopy, Scan...
A simple and highly selective electrochemical method for the determination of catechol (CC) and hydroquinone (HQ) was developed on carbon paste electrode modified with electropolymerized thin films of benzoguanamine by using cyclic voltammetry. The effects of pH, scan rate, and concentration wer...
Three new hybrid crystals of 2-aminophenol-HClO4 (2-AP-HClO4, 1), 3-aminophenol-HClO4 (3-AP-HClO4, 2) and 4-aminophenol-HClO4 (4-AP-HClO4, 3) were obtained and their crystal structures determined. The 1 crystallises in centrosymmetric space group C2/c of monoclinic system while the other two (2 ...
Graphene oxide−wrapped hierarchical hollow structured SnO2 spheres were fabricated by hydrothermal strategy and applied to the sensitive electrochemical sensing of phenolic compounds. The as−prepared new nanocomposite modified electrode characterized by morphology, X−ray diffraction, Raman spect...
Herein, a newly developed electrochemical sensor base on the nanohybrid of palladium-reduced graphene oxide modified with gold nanoparticles (Au/Pd/rGO) was established, which was prepared by electrodeposing Au nanoparticles on Pd/rGO modified on a glass carbon electrode. The morphologies and mi...
Epidemiological studies suggest associations between the use of N-acetyl-4-aminophenol (paracetamol) during pregnancy and increased risks of reproductive disorders in the male offspring. Previously we have reported a ubiquitous urinary excretion of N-acetyl-4-aminophenol in the general populatio...
We present here a simple thermal route for synthesizing 5.1 wt% cobalt doped CuO nanoparticles (NPs) as the optimized composition of the best heterogeneous CuO catalyst for catalytic reduction of toxic 4-nitrophenol to industrially beneficial 4-aminophenol. The reduction is completed in merely 3...
Herein, a newly developed CuO-Au composite was successfully decorated on multiwalled carbon nanotubes (MWCNTs) and employed as an electrochemical sensor. The developed nanocomposite (CuO-Au/MWCNTs) was dispersed on the surface of glassy carbon electrode (GCE) to produce CuO-Au/MWCNTs/GCE. The ch...
Since acetaminophen (ACAP) and 4-aminophenol (4-AP, the degradation product from ACAP) have different properties and toxicities, the simultaneous electrochemical determination of ACAP and 4-AP is very important. In this work, nitrogen-doped hollow carbon spheres wrapped with MoS2 nanosheets (MoS...
New formulations of polyaniline/graphene/carbon nanotubes nanocomposites (PANI/G/CNTs) were synthesized in-situ polymerization process in acidic solution. Initially, the suggested nanocomposites were prepared with fixed weight from aniline monomer and different mixed ratio from graphene nanoshee...
A study of the reaction between benzoyl peroxide and dilauryl thiodipropionate, proceeding in atactic polypropylene or in isooctane as its low-molar-mass model, revealed that at 50°C the compounds react in the ratio 1:1 and the reaction obeys the second-order kinetics. The rate constant of the ...
(Liquid + liquid) equilibrium (LLE) data of the solubility (binodal) curves and tie-line end compositions were examined for {water (1) + propionic acid (2) + diethyl succinate or diethyl glutarate or diethyl adipate (3)} at T = 298.15 K and 101.3 ± 0.7 kPa. The relative mutual solubility of the...
Further enhance the oxygen content (OC) of the conventional B5 palm oil biodiesel is the key to attain greener emissions in future. Diethyl succinate (DES) and 1-octanol (OCT) is designed to blend with B5 to address this issue. In this study, the optimum binary and ternary blends (with higher OC...
Liquid–liquid equilibrium data for the ternary system water–ethanol–diethyl succinate were measured at 303.15 K and 313.15 K and atmospheric pressure. The reliability of the LLE data was confirmed using the Othmer–Tobias correlation. P–x data for the vapor–liquid equilibrium for the binary...
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