Magnetic chitosan nanoparticles for removal of Cr(VI) from aqueous solution
Magnetic chitosan nanoparticles for removal of Cr(VI) from aqueous solution
... 0.1 g of magnetic chitosan nanoparticles were equilibrated with50 mL of solution containing various amount of Cr(VI). The pH value of solutions was adjusted by using diluted solution of NaOH ... Magnetic chitosan nanoparticles for removal of Cr(VI) from aqueous solution Nguyen Ngoc Thinha, Pham Thi Bich Hanhb, Le Thi Thanh ... Cr(VI) concentrations at any time t,respectively;V (L)isthevolumeofthe Cr(VI) solution; and m (g)isthemassofthemagneticchitosan nanoparticles. Samples o f t he Cr(VI) solution were collected at pre-determined time...
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Removal of Cadmium from Aqueous Solutions by Charcoals Prepared from Giant Reed (Arundo donax)
... mg/L (Left) and 250 mg/L (Right)) Removal of cadmium from aqueous solutions For estimating the removal rate, time courses of cadmium concentration in aqueous solution and calculated amount adsorbed ... charcoals, the removal capacity of cadmium from aqueous solution was investigated. As a result, high removal capacity under low concentration of cadmium was observed. High yield of cadmium with ... - Removal of Cadmium from Aqueous Solutions by Charcoals Prepared from Giant Reed (Arundo donax) Masaki SAGEHASHI*, Takao FUJII**, Hong Ying HU***, Akiyoshi SAKODA** *Center of Education...
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Preparation of chitosan magnetite composite beads and their application for removal of Pb(II) and Ni(II) from aqueous solution
... thefocus of many investigations on the removal of heavy metals from aqueous solutions [11–15]. Chitosan has excellent properties for the adsorption of metal ions,principally due to the presence of ... application for removal of Pb(II) and Ni(II) from aqueous solution Hoang Vinh Trana, Lam Dai Tranb,⁎, Thinh Ngoc NguyenaaFaculty of Chemical Technology, Hanoi University of Technology, ... magnetic beads with the aid of NaOH. Chitosan on the surface of the magnetic nanoparticles is available for coordinating with heavymetal ions, making those ions removed with the assistance of...
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Báo cáo "Reseach on the removal of hexavalent chromium from aqueous solution by iron nanoparticles " doc
... 60Time(min) [Cr(VI)] / [Cr(VI)] 0 Cr(VI) = 1.0 mg/l Cr(VI) = 2.0 mg/l Cr(VI) = 3.0 mg/l Cr(VI) = 4.0 mg/l Cr(VI) = 5.0 mg/l Fig. 3. Effect of initial Cr(VI) concentration on the rate of Cr(VI) removal ... 3 shows the results of effect of initial Cr(VI) concentration on the rate of Cr(VI) removal with the initial Cr(VI) concentration from 1.0 mg/l to 5.0 mg/l. The Cr(VI) removal efficiency ... 60Time(min) [Cr(VI)] /Cr(VI)] 0Fe powderFe nanoparticals Fig. 5. Comparison of different Fe0 type on the Cr(VI) removal efficiency. Fig. 5 show that Cr(VI) removal efficiency of nanoparticles...
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Báo cáo y học: " Surgical Removal of lipoma from an area with tattooed skin"
... Pre-operative photo of the lipomatous formation with the tattoo. Figure 2 Four months post-operative result. DISCUSSION AND CONCLUSIONS No similar case of surgical removal of lipoma from an area ... meet the need of our patient of removing the lipomatous formation while keeping the tattoo intact, during the surgical treat -ment of the lipoma, we followed the exact lines of the tattoo ... number of people with a tattoo, we could recommend to use precolored lines to hide future scars. CONSENT STATEMENT Written informed consent was obtained from the patient for publication of this...
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Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon
... 70.19m²/g, pore volume of 0.00062cm3/g and pore size of 126Å. Preparation of AC-Fe AC from coconut shell was taken from MAPECOH, Inc (Philippines) with a particle size of 0.45-0.71mm after ... is one of the most important parameters to look at in column study for arsenic removal by sequential combination of LA and AC-Fe. In Figure 10, at flow rate of 5mL/min or space velocity of 1.22m3/m3 ... available adsorbents is a promising method for the removal of arsenic with applicability in rural areas. This work aims to study the removal of arsenic from synthetic groundwater using an adsorption...
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Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon
... usability of untreated rice husk packed in glass columns (2 cm x 30 cm) for the removal of As[III] and As[V]. Lee et al. (1999) reported the removal of 80% arsenate from highly concentrated solutions ... percentage removal was maximum in the pH range of 5–7 for As[V] and pH range of 9–11 for As[III]. 00.20.40.60.81050100Time, hC/CopH 5 pH 7 pH 9 Fig. 2 Effect of pH on arsenic removal ... prepared from an available, cheap source of carbon (rice husk carbon) and the most effective agent (iron) for the removal of both As[III] and As[V] from simulated groundwater using a mixture of 70%...
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removal of basic blue 159 from aqueous solution using
... Journal of Applied Chemical Research, 7, 4, 51-62 (2013)Journal of Applied Chemical Researchwww.jacr.kiau.ac.ir Removal of Basic Blue 159 from Aqueous Solution Using Banana ... (2013)56Effect of the mass of adsorbentThe removal of BB159 by banana peel were studied by changing the quantities of sorbents (0.2, 0.4, 0.6 and 0.8g) for the initial dye concentration of 100 mgL-1 ... (g)% removal Effect of pHThe pH of the dye solution is one of the most important parameters which controlled the adsorption process, particularly the adsorption capacity. The pH of the solution...
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Báo cáo hóa học: " Both FA- and mPEG-conjugated chitosan nanoparticles for targeted cellular uptake and enhanced tumor tissue distribution" docx
... thecleavage rate of MMC from the chitosan nanoparticles. It is also worth noting that the release profiles show apH dependence. The higher the medium pH, the fasterthe release of MMC from the NPs. ... 5.0) with sodiumhydroxide solution (1 M); 16.7 ml of STPP solution (2.5mg/ml) was slowly added to the chitosan solution underintensive stirring.; then 10 ml of aqueous glutaraldehyde(25%, ... system.In vitro cellular uptake of different kinds of NPsTo visualize the effect of FA-mediated endocytosis of diff erent kinds of modified NPs, the distribution of rho-damine B-labeled NPs on...
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Báo cáo sinh học: " Research Article A New Switching-Based Median Filtering Scheme and Algorithm for Removal of High-Density Salt and Pepper Noise in Images" pptx
... Results of differentfiltersforCameramanimage.(a)OutputofSMF.(b)OutputofPSMF.(c)OutputofAMF.(d)OutputofDBA.(e) Output of REMF. (f) Output of PA. Row 1–Row 3 show processed results of various filters for ... Results of different filters for Lena image. (a) Output of SMF. (b) Output of PSMF. (c) Output of AMF. (d) Output of DBA. (e)Output of REMF. (f) Output of PA. Row 1–Row 3 show processed results of ... Results of different filters for Boat image. (a) Output of SMF. (b) Output of PSMF. (c) Output of AMF. (d) Output of DBA. (e)Output of REMF. (f) Output of PA. Row 1–Row 3 show processed results of...
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