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The present work was focused on isolating a bacterial strain of Pseudomonas sp. with the ability to synthesise AgNPs rapidly. A strain of Pseudomonas aeruginosa designated JO was found to be a potential candidate for rapid synthesis of AgNPs with a synthesis time of 4h in light, at room temperature which is a shorter time period noticed for the synthesis when compared to the previous reports Biosynthesis...
Gd2O3:Er3+,Yb3+ microcrystals were prepared by the co-precipitation method using water or ethanol/water as solvents. The effects of solvents on particle size, morphology, and photoluminescence intensity were investigated. The microcrystal were systematically characterized by X-ray diffraction (XRD), thermogravimetry-differential scanning calorimetry (TG-DSC), scanning electron microscope (SEM), Fourier...
Hardening,hydration performance and mechanism of the hydraulic fluorgypsum-based binding material were studied in this paper. The fluorgypsum-based binding material were mixed 60% fluorgypsum with other chemical activators contained 1% K2SO4, 5% clinker and 35% blast furnace slag. The 28-day compressive strength of the the fluorgypsum-based binding material could reached 41.25MPa, the softening coefficient...
In order to increase the absorption capacity of Zeolite of NH4+-N, clinoptilolite from Henan Gongyi was modified, and the modified zeolite concentration was 50 mg·L-1 imulated NH4+-N wastewater modified after the use of roasting by static test, microwave, acid, salt, and integrated heat, the result of experiments was that the Zeolite adsorption of Natural Zeolite and six modified zeolite adsorption...
Polymer nanocomposites are defined as polymers in which small amounts of nano-meter size fillers are homogeneously dispersed by only several weight percentages. Addition of just a few weight percent of the nano-fillers has profound impact on the physical, chemical, mechanical and electrical properties of polymers. In this paper, PMMA - TiO2 nanocomposite is synthesized and its characteristics are...
The low-cost activated carbon was prepared from sugarcane bagasse, an agricultural waste material, by chemical activation with different reagents. Orthogonal experimental design was applied to study the influence of activation temperature, activation time and chemical ratio of reagents to sugarcane bagasse on the chemical activation process of sugarcane bagasse. The optimal activated carbon was obtained...
A series of the Pb5(PxAs1-xO4)3Cl solid solutions were directly prepared through aqueous precipitation method. The results of the elemental analysis, XRD, FT-IR and SEM characterization have confirmed the forming of the mimetite/pyromorphite solid solutions. The XRD analysis indicated that the end-member components of the solid solutions were well matched respectively to card #01-080-2103 for mimetite...
This talk presents a new series of chiral bio-nanoclays by the modification of Cloisite Na+ with several different natural amino acids. Cloisite Na+ was swelled in water and ion exchange reactions were performed using hydrochloride salt of different amino acids. The resulting products were fully characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared...
Highly pure (K, Na)NbO3 lead-free piezoelectric ceramic powders have been successfully synthesized by solvothermal treatment at 220°C for 10 h using distilled water, ethanol, glycol or isopropanol as the solvent. The powders were characterized using X-ray powder diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning...
Poly(ester-imide)s (PEI)s are a kind of non-vinyl polymers which can be prepared via step-growth polymerization. They contain ester and imide linkages in the polymer backbones and lately show significant applications, such as adhesives, printed circuit boards, membranes, and engineering thermoplastics. Synthesis of chiral polymers is an important field in macromolecular science, they have attracted...
In this paper, polymaleic anhydride are grafted on the carbon nanotube (CNT) surfaces. This process provided a good method in amination and enhances the solubility of CNTs. The reaction products have high solubility in organic solvents. X-ray diffraction (XRD), Raman, Fourier transform infrared (FTIR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are used to characterize...
The study on NOx Storage Performance at low temperature over Pt/BaO/Al2O3 by plasma treatment in this paper, the structure and activity of catalysts are characterized and tested respectively by using BET, TPR, SEM, TPD,XRD and FTIR. The results of FTIR spectra are shown that catalyst by non-plasma treatment has weak oxidbillity for NO, on the surface of catalyst, there are major adsorption species...
The composite antibacterial agents were prepared with nano-hydroxyapatite containing polyvinyl alcohol, copper ions and zinc ions via the parcels and ion exchange respectively. The as-prepared antibacterial agents were characterized by X-ray diffraction, infrared spectrogram and scanning electron microscopy. The results show that PVA has been wrapped in the surface of hydroxyapatite, and copper and...
Conducting copolymer, poly(aniline-co-p-phenylene-diamine) [poly(Ani-co-pPD)] nanorods were prepared in the presence of p-toluene sulfonic acid (p-TSA) dopant by chemical oxidative polymerization. Morphology of the copolymer nanorods were investigated by field emission scanning electron microscopy (FESEM). Moreover the formation mechanism of the nanostructured copolymer was proposed. FT-IR, UV-visible...
This paper aims at exploring the feasibility of adsorption filtration technology using reclaimed iron sludge coated sand (RISCS) as filter media for municipal wastewater reuse. The iron sludge as surplus waste solution derived from ferric-carbon micro-electrolysis process. Scanning electron microscope (SEM), Infrared spectroscopy (IR) and X-ray diffraction (XRD) analysis were used to investigate the...
The effects of solution pH and initial concentration on adsorption and coprecipitation of As(V) from aqueous solutions by aluminum hydroxide [Al(OH)3] for 50d and 1120d were studied. The XRD, FT-IR and SEM results indicated that there was only slight difference between the Al(OH)3 adsorbents before and after adsorption, but their crystal structure had not changed. The adsorption efficiency of As(V)...
Using waster residue phosphogypsum as raw materials, calcium sulfate whiskers were prepared by the hydrothermal method. The products were characterized by XRD, SEM and FT-IR, etc. The effects of reaction temperature and time, initial solid-to-liquid ratio of slurry, and different additives on the morphology and content of the samples' soluble-phosphates were studied. The results showed that the optimal...
In this work are discussed the technology for preparing and characterisation of indium-tin oxide (ITO) and ITO with titanium oxide underlayer thin films with properties appropriate for usage at elevated temperatures as heat reflective coatings and gas sensors. For preparing the samples the methods of radio frequency (RF) and DC-magnetron reactive sputtering were used. Sputtering of indium-tin and...
Titanium and its alloys are used in dental and orthopaedic applications. Chemical and physical properties of implant surfaces are important determinants of implant stability and osteointegration. In this study, pure titanium, anodized titania and ordered titanium dioxide nanotubular plates were coated with calcium phosphate using a modified SBF solution and pulsed electrodeposition process at 80°C,...
A facile method to prepare polyaniline (PANI)/toluene-p-sulphonic acid (TSA) microrods guided by polyvinyl pyrrolidone) (PVP) was developed. The structure of the PANI microrods was characterised by means of scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The average length and diameter of the microrods were about 25 and 7 μm, respectively...
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