نتایج جستجو برای: copper embedded in pvp matrix

تعداد نتایج: 17067040  

Journal: :Applied sciences 2021

The combination of adsorption and photodegradation processes is an effective technique for the removal dye contaminants from water, which motivating development novel adsorbent-photocatalyst materials wastewater treatment. Herein, nanocomposite porous beads were developed using titanium dioxide (TiO2) nanotubes embedded in a sodium alginate (SA)/polyvinylpyrrolidone (PVP) matrix calcium chlorid...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1389

one of the most important number sequences in mathematics is fibonacci sequence. fibonacci sequence except for mathematics is applied to other branches of science such as physics and arts. in fact, between anesthetics and this sequence there exists a wonderful relation. fibonacci sequence has an importance characteristic which is the golden number. in this thesis, the golden number is observed ...

Journal: :Journal of Inorganic and Organometallic Polymers and Materials 2022

Copper dioxide (CuO) nanoparticles and Multiwall carbon nanotubes (MWCNTs) filled poly(vinyl alcohol) (PVA) pyrrolidone) (PVP) blend matrix (50/50 wt%) based polymer nanocomposites (PNCs) (i.e., PVA/PVP:(15-x)CuO(x)MWCNTs for x = 0,1,5,7.5, 10,14, 15wt%) have been prepared employing the solution-cast method. The morphologies of these PNCs are semicrystalline, according to an X-ray diffraction i...

Journal: :Journal of Pharmaceutical Analysis 2021

Surface enhanced Raman spectroscopy (SERS) and confocal microscopy are applied to investigate the structure molecular arrangement of sub-micron furosemide polyvinylpyrrolidone (furosemide/PVP) particles produced by spray flash evaporation (SFE). Morphology, size crystallinity furosemide/PVP analyzed scanning electron (SEM) X-ray powder diffraction (XRPD). Far-field spectra far-field maps interp...

Journal: :journal of membrane science and research 0
h.k. melvin ng school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan,14300 nibong tebal, s.p.s., pulau pinang, malaysia a.h. sabran school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan,14300 nibong tebal, s.p.s., pulau pinang, malaysia c.p. leo school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan,14300 nibong tebal, s.p.s., pulau pinang, malaysia a.l. ahmad school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan,14300 nibong tebal, s.p.s., pulau pinang, malaysia a.z. abdullah school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan,14300 nibong tebal, s.p.s., pulau pinang, malaysia

photocatalytic membranes exhibit great potential for water treatment since they combine the filtration and photo degradation in a single unit. although blending photocatalytic nanoparticles into polymeric thin film remains the simplest method to prepare the photocatalytic membrane, the entrapped photocatalyst showed less catalytic activity due to the agglomeration and shielding effects in the p...

Journal: :International Journal of Environmental Analytical Chemistry 2022

Contaminated waterways, particularly effluent from the dye industry, are one of major issues today. Among various methods adsorption is most straightforward, effective, and successful to treat such effluents. For this purpose Copper oxide nanoparticles (CuO) embedded within Polyvinyl alcohol (PVA) pyrrolidone (PVP) mixed polymer (CuO/PVA-PVP) were synthesized using precipitation different analy...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی 1387

abstract this paper discusses several commonly used models for strategic marketing¹ including market environmental analysis methods (i.e. swot and pest analysis) and strategic marketing tools and techniques (i.e. boston matrix and shell directional policy matrix)and shows how these models may help a firm to achieve its strategic goals. at first, the main reason for doing this research is de...

Garnik Grigoryan, Sayed Hossein Tohidi, Vahidah Homaunmir

One distinct concentration of copper ions was embedded into the silica matrix to xerogel form using copper source Cu(NO3)2∙3H2O. The xerogel samples were prepared with using hydrolysis and condensation reactions of TetraEthyl Ortho-Silicate (TEOS) by the sol-gel method. In this investigation, new molar ratio of H2</su...

A.H. Sabran A.L. Ahmad A.Z. Abdullah C.P. Leo, H.K. Melvin Ng

Photocatalytic membranes exhibit great potential for water treatment since they combine the filtration and photo degradation in a single unit. Although blending photocatalytic nanoparticles into polymeric thin film remains the simplest method to prepare the photocatalytic membrane, the entrapped photocatalyst showed less catalytic activity due to the agglomeration and shielding effects in the p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...

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