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Rajendiran Rajesh et al.
Physical chemistry chemical physics : PCCP, 17(17), 11329-11340 (2015-04-08)
Herein we report the covalent grafting of chitosan on graphene oxide (GO) followed by a simple approach for anchoring silver (AgNPs) and gold (AuNPs) nanoparticles onto a chitosan grafted graphene oxide surface by a NaBH4 reduction method. Catalytic activity of
Chia-Nan Lin et al.
Environmental science and pollution research international, 19(9), 3743-3750 (2012-10-12)
Solar wastewater treatment based on photocatalytic reactions is a green process that utilizes renewable energy resources and minimizes secondary pollution. Reactor design plays an important role in promoting treatment efficiency and throughput density (based on unit volume of the reactor).
Wenmin Zhang et al.
Journal of chromatography. A, 1400, 10-18 (2015-05-23)
Fe3O4@SiO2@UiO-66 core-shell magnetic microspheres were synthesized and characterized by transmission electron microscopy, scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectrometry, vibrating sample magnetometry, nitrogen adsorption porosimetry and zeta potential analyzer. The synthesized Fe3O4@SiO2@UiO-66 microspheres were first used for magnetic
K V Oskolok et al.
Talanta, 195, 137-141 (2019-01-11)
A prototype of a handheld optical molecular analyzer based on household laser pointers of medium power (50-200 mW) equipped with a focusing lens is proposed. Its operating principle is based on the dependence of the attenuation of the laser beam by
Somayeh Mirsadeghi et al.
Journal of environmental management, 270, 110831-110831 (2020-06-09)
A simple biogenic approach for synthesis of Fe3O4/Au nanocomposite with 31 nm size using aqueous extract of Carum carvi L. seeds has been reported. Phytochemicals of Carum carvi L. seeds extract play three roles, including reducing, capping, and stabilizing agents during
Jiahui Kou et al.
ChemSusChem, 5(12), 2435-2441 (2012-09-05)
A simple, green, and fast approach (complete within 5 min) was explored for the fabrication of hybrid AgCl/Ag plasmonic nanoparticles under microwave (MW) irradiation. In this method, beet juice served as a reducing reagent, which is an abundant sugar-rich agricultural
Tarek Alammar et al.
Nanoscale, 5(17), 8045-8055 (2013-07-23)
The phase selective synthesis of nanocrystalline TiO2, titania, in ionic liquids (ILs) is explored. The influence not only of the IL but also of the Ti-precursor, pH, and temperature is investigated. Sonochemical synthesis, microwave synthesis and conventional heating are compared.
Anjana Sarkar et al.
Nanotechnology, 23(47), 475711-475711 (2012-11-03)
The structure, composition and photocatalytic activity of TiO(2) nanoparticles annealed in various gas atmospheres (N(2), NH(3) and H(2)) were studied in this work. The effect of treatment on crystal structure, particle size, chemical composition and optical absorbance were assessed by
Ahed Zyoud et al.
Journal of environmental health science & engineering, 13, 46-46 (2015-05-23)
Photo-degradation of organic contaminants into non-hazardous mineral compounds is emerging as a strategy to purify water and environment. Tremendous research is being done using direct solar light for these purposes. In this paper we report on optimum conditions for complete
Mingwei Zhao et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 19(3), 1076-1081 (2012-12-01)
Highly ordered supramolecular microfibers were constructed through a simple ionic self-assembly strategy from complexes of the N-tetradecyl-N-methylpyrrolidinium bromide (C(14)MPB) surface-active ionic liquid and the small methyl orange (MO) dye molecule, with the aid of patent blue VF sodium salt. By
Jing Cao et al.
Journal of hazardous materials, 239-240, 316-324 (2012-09-29)
Novel p-n junction photocatalysts BiOI/(BiO)2CO3 with different contents of BiOI were in situ synthesized by etching (BiO)2CO3 precursor with hydroiodic acid (HI) solution. X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectrometry (FT-IR), energy-dispersive spectroscopy (EDS)
Katarzyna A Michalow et al.
Environmental science and pollution research international, 19(9), 3696-3708 (2012-10-12)
TiO(2):Nb nanopowders within a dopant concentration in the range of 0.1-15 at.% were prepared by one-step flame spray synthesis. Effect of niobium doping on structural, optical and photocatalytic properties of titanium dioxide nanopowders was studied. Morphology and structure were investigated by
Penghua Wang et al.
Physical chemistry chemical physics : PCCP, 17(34), 21982-21987 (2015-08-04)
Nanostructured titania and titanate have been considered as very important materials used in photocatalysis, photovoltaics, gas sensing and other electronic industries. In principle, their common structural feature is that the precursor phase involving TiO6 octahedra or similar building units may
P Kumar et al.
Colloids and surfaces. B, Biointerfaces, 103, 658-661 (2012-12-26)
In this paper, we report on biosynthesis of silver nanoparticles using Ulva lactuca (seaweed) at room temperature along with photocatalytic degradation of methyl orange dye. UV spectral analysis showed peak at 430 nm with special reference to the excitation of
Pan Li et al.
Ultrasonics sonochemistry, 22, 132-138 (2014-06-21)
The rate of reduction reactions of zero-valent metal nanoparticles is restricted by their agglomeration. Hydrodynamic cavitation was used to overcome the disadvantage in this study. Experiments for decolorization of methyl orange azo dye by zero-valent copper nanoparticles were carried out
Dong-Min Yun et al.
Water research, 47(5), 1858-1866 (2013-02-05)
Here, we demonstrated that nano zero-valent iron (nZVI) impregnated onto self-organized TiO(2) nanotube thin films exhibits both oxidation and reduction capacities in addition to the possible electron transfer from TiO(2) to nZVI. The TiO(2) nanotubes were synthesized by anodization of
Dan Chen et al.
Journal of hazardous materials, 243, 152-160 (2012-11-06)
A novel magnetic Fe(3)O(4)/ZnCr-layered double hydroxide adsorbent was produced from electroplating wastewater and pickling waste liquor via a two-step microwave hydrothermal method. Adsorption of methyl orange (MO) from water was studied using this material. The effects of three variables have
Characterization of methyl orange and its photocatalytic degradation products by HPLC/UV?VIS diode array and atmospheric pressure ionization quadrupole ion trap mass spectrometry.
Baiocchi C, et al.
International Journal of Mass Spectrometry, 214, 247-256 (2002)
Yu Lim Chen et al.
Optics express, 21(6), 7240-7249 (2013-04-03)
A low-cost and efficient photocatalytic reactor for environmental treatment and green technology was presented. ZnO nanorods firmly growing on polycarbonate optical disk substrate are generally perpendicular to the substrate as the immobilized photocatalyst of the spinning disk reactor. The photocatalytic
Xiao-Xu Hou et al.
Environmental science and pollution research international, 20(12), 8521-8534 (2013-05-15)
Corncob-derived char wastes (CCW) obtained from biomass conversion to syngas production through corncob steam gasification, which were often discarded, were utilized for preparation of activated carbon by calcination, and KOH and HNO3 activation treatments, on the view of environment protection
Maria Visa et al.
Journal of hazardous materials, 244-245, 773-779 (2012-12-04)
Wastewaters resulting from the textile and dye finishing industries need complex treatment for efficient removal of colour and other compounds existent in the dyeing and rising baths (heavy metals, surfactants, equalizers, etc.). Modified fly ash (FA) mixed with TiO(2) photocatalyst
Peng Zhang et al.
Journal of hazardous materials, 237-238, 331-338 (2012-09-15)
The TiO(2)/ZnO nanofibers embedded by Au nanoparticles (TiO(2)/ZnO/Au NFs) were fabricated by combining the electrospinning technique (for TiO(2)/ZnO nanofibers) and an in situ reduction approach (for Au nanoparticles). X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electronmicroscopy, X-ray photoelectron
K V Oskolok et al.
Talanta, 178, 377-383 (2017-11-16)
The design and operations principles of a prototype of optical device based on an office flatbed photo scanner with a slide adapter are described in the paper. The developed device is intended for the analysis of liquid-phase samples by colorimetry
Lin Wang et al.
Scientific reports, 5, 9201-9201 (2015-03-18)
The biosynthesis of the antibiotic epsilon-poly-lysine (ε-PL) in Streptomyces albulus is performed by polylysine synthase (pls); however, the regulatory mechanism of this process is still unknown. Here, we first obtained the complete genome sequence of S. albulus ZPM, which consists
P R Sarika et al.
Colloids and surfaces. B, Biointerfaces, 133, 347-355 (2015-07-03)
Galactosylated pullulan-curcumin conjugate (LANH2-Pu Ald-Cur SA) is developed for target specific delivery of curcumin to hepatocarcinoma cells by five step synthetic strategy, which includes oxidation of pullulan (Pu Ald), introduction of amino group to the targeting ligand (LANH2), grafting of
Bing Sun et al.
Journal of environmental sciences (China), 24(5), 840-845 (2012-08-17)
The pulsed high-voltage discharge is a new advanced oxidation technology for water treatment. Methyl Orange (MO) dye wastewater was chosen as the target object. Some investigations were conducted on MO decoloration including the discharge characteristics of the multi-needle reactor, parameter
Merve Akpinar et al.
Preparative biochemistry & biotechnology, 42(6), 582-597 (2012-10-04)
Pleurotus eryngii (DC.) Gillet (MCC58) was investigated for its ability to produce various ligninolytic enzymes such as laccase (Lac), manganese peroxidase (MnP), aryl alcohol oxidase (AAO), and lignin peroxidase (LiP) by solid-state fermentation (SSF), which was carried out using a
Md Tamez Uddin et al.
Physical chemistry chemical physics : PCCP, 17(7), 5090-5102 (2015-01-20)
New 2-6 wt% RuO2-ZnO heterojunction nanocatalysts were synthesized by a straightforward two-step procedure. They were composed of a porous network of aggregated 25 nm wurtzite ZnO nanocrystallites modified with RuO2 and showed enhanced light absorption in the visible region due
Bin Cai et al.
Nanoscale, 5(5), 1910-1916 (2013-01-29)
Zero bandgap and water soluble sulfonated graphene (SGE) has been introduced into an n-type semiconductor photocatalytic system to fabricate a Ag@AgBr/SGE composite photocatalyst. Due to its unique conduction and valence band dispersion and low Fermi level, SGE serves as an
Photocatalytic degradation of organic dyes by La³⁺/Ce³⁺-H₃PW₁₂O₄₀ under different light irradiation.
Taohai Li et al.
Dalton transactions (Cambridge, England : 2003), 43(24), 9061-9069 (2014-05-09)
New photocatalysts (La(3+)-H3PW12O40 and Ce(3+)-H3PW12O40) were prepared, and the degradation activity of these products was evaluated. These photocatalysts were synthesized by the hydrothermal method assisted by PEG-1000 from the reactions of LaCl3 or CeCl3 and phosphotungstic acid. The prepared catalysts
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