نتایج جستجو برای: naclo
تعداد نتایج: 253 فیلتر نتایج به سال:
Biogenic corrosion of sewers represents a cost of about 10% of total sewage treatment cost in Flanders (Belgium) and is further increasing. In the past, research has resulted in a number of prevention methods, such as injection of air, oxygen, H(2)O(2), NaClO, FeCl(3) and FeSO(4). The possibility of biological oxidation of sulfide using nitrate as the electron acceptor has also been explored in...
Achieving oriented and ordered remineralization on the surface of demineralized dental enamel, thereby restoring the satisfactory mechanical properties approaching those of sound enamel, is still a challenge for dentists. To mimic the natural biomineralization approach for enamel remineralization, the biological process of enamel development proteins, such as amelogenin, was simulated in this s...
The morphological properties of cellulose nanofibrils obtained from eucalyptus pulp fibres were assessed. Two samples were produced with the same chemical treatment (NaClO/NaBr/TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical) oxidation), but distinct mechanical treatment intensities during homogenization. It was shown that the nanofibrils production yield increases with the mechanical energ...
The synthesis of ligand L based on a 2,6-bis[(N,N-bis(methylene phosphonic acid)aminomethyl] pyridine scaffold is described. Potentiometry combined with UV-Vis absorption spectrophotometric titrations were used to determine the protonation constants of the ligand and the stability constants of its corresponding Cu(II), Ni(II), Zn(II) and Ga(III) cations (0.1 M NaClO(4), 25.0 °C). The physico-ch...
• Local and collective Water dynamics in solution vs pressure concentration. Ultrafast spectroscopy as a powerful tool to investigate water dynamics. Pressure concentration similarly affect Experimental evidence of the second first solvation shell merging. The presence ions induces perturbations network, these structural dynamic modifications can extent over space scales overcoming local shell:...
In vitro propagation of three Iranian apricot cultivars, “Ghavami”, “RajabAli” and “Khiveei” was studied by direct micropropagation technique. To optimize sterile manipulation, shoot nods of one year-old dormant vegetative shoots and current growing vegetative shoot were cultured in WPM medium after treatment by HgCl2, citric acid, ethanol and NaClO (10, 15, 20 min). Establishment of buds was t...
در این تحقیق، تولید نانوالیاف سلولزی با استفاده از پیشتیمار کربوکسیلدار کردن الیاف کاه گندم بهعنوان یکی از مهمترین پسماندهای لیگنوسلولزی مهم و در دسترس بررسی شد. در ابتدا خمیرسازی کاه گندم به روش سودا- آنتراکینون و رنگبری آن به روش DEPD انجام پذیرفت و اکسیداسیون الیاف سلولزی حاصل از آن بهوسیلۀ سیستم -(NaClO/NaBr/TEMPO) با استفاده از 2، 6 و 10 هیپوکلریت سدیم (براساس وزن خشک خمیرکاغذ) صو...
Sodium-ion batteries (SIBs) are being viewed as a prime alternative to lithium-ion (LIBs) due their resource availability, cost-effectiveness, safety, and superior power performance. Layered transition metal oxide cathode materials, in particular, have garnered interest for high theoretical capacity extended cycle life. This study focuses on the O3-type Na 0.90 Cu 0.22 Fe 0.30 Mn 0.48 O 2 (NCFM...
Residual biomasses from agro-industries in Paraguay, including soybean hulls (SBHs) and sugarcane bagasse (SCB), were studied as a source for nanocellulose extraction the first time. For that purpose, both delignified semi-pilot stainless-steel reactor, cellulose pulp was subjected to bleaching process with NaClO (2.5%, w/v). The (CNC) obtained after two-step acid hydrolysis. Firstly, bleached ...
A comprehensive study was carried out to assess the efficiency of different chemicals on pretreatment plant biomass, corn cobs. The assessed based its effect subsequent hydrolysis biomass for conversion fermentable sugars. Both alkali- and acid-based pretreatments were under optimized conditions avoid formation inhibitors also yield more Among used, 2% NaOH (w/v) found be effective with deligni...
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