boron removal curcumin

This study was conducted to investigate the batch and fixed-bed adsorption properties of boron on curcumin-impregnated activated carbon (Cur-AC). The …

The necessity of water removal and the use of curcumin in excess in the analytical procedures is explained. ... The concentration of boron in the initial feed and the water was determined by the curcumin method spectrophotometrically (Dyrssen et al., 1972). A 5 g feed was crushed and extracted with 10 mL of distilled water boiling for 15 …

The use of boron-based compounds by reaction with curcumin, it improves its stability in vivo without loss of bioactivity. Recently, a study showed that the drug bortezomib co-administered with curcumin determines the synergistic and therapeutic activity for the treatment of multiple myeloma. Moreover, the combination of 2-aminoethyl …

Another observation was that the curcumin component degrades after the removal of the acid ligand that was attached to it through boron. A detailed kinetic analysis of the ligand decomposition ...

2.1. Reasons for the Difficulties of Boron Removal from Water Boron is a trace element, which tends to form compounds by covalent bonds in nature due to its small atomic radius (about 0.85–0.90 Å) and high ionization energy (the first ionization potential is 8.296 eV). Boron in aqueous solutions usually exists in the form of

Distill the boron sample as the methyl borate sn:l collect the distillate in a platinum evaporating dish, add l ml of 1:1 HCl, 2.00 ml of the curoumin reagent (0.005 p curcumin, 0.5 gm oxalic acid in. 50 ml of ethanol), slld then evaporate this solu tion at 55°±1°c. The color intensity is measured.

the removal of boron from water using zinc anode, Desalination 310 (2013) 122 – 129 (this issue). [101] H.F. Ayyildiz, H. Kara, Boron removal by ion exchange membranes, Desalination

For example, EC-Ni can remove 99.2% of boron from a 10 mg·L −1 boron solution within 2 h at pH = 8 and a current density of 1.25 mA·cm −2, while EC-Fe/Ni can remove 95% of boron from a 10 mg·L −1 boron solution within a shorter reaction time (60 min) at a pH of 8 and current density of 3.75 mA·cm −2 . The type and concentration of ...

The highest boron removal in fixed-bed column adsorption was achieved up to 99% for the first 5 min at an inlet concentration of 890 mg/L and a flow rate of 8.0 mL/min. Thomas …

1. Introduction. Boron is a trace element which is widely distributed in earth's hydrosphere and lithosphere. In the lithosphere, boron can be found in soil or rocks, and its average concentration is 10 mg/kg in earth crust, only taking up 0.001% of the elemental composition of the earth [1], [2].In the hydrosphere, its average concentration is about …

Boron–curcumin and iron–curcumin complexes have shown superior photostability in solution. This increased photostability was found to be attributed to the coordination structures and the removal of β-diketone group in curcumin . Cobalt also increases stability of curcumin by binding to its enolic form. Binding to cobalt ...

Contaminants present in the wastewater stream Boron removal started to decline beyond a curcumin are treated either by chemical reactions and precipitation dose of 0.050 g. This decline may, reflect on increased or by physical and chemical attachment to colloidal competition from polymeric aluminium hydroxide, which materials generated by the ...

Boron Removal by Sorption on Modified Chitosan Hydrogel Beads. The results showed that the biosorbent effectively removed boric acid from the aqueous medium at neutral pH over a sorption time of 2 h and the liquid/hydrogel ratio of 20 mL/g, achieving a maximum sorption capacity near 190 mg/g. Expand.

Aim: Application of response surface methodology (RSM) to determine optimum parameters in the coagulation-flocculation process aided by curcumin for boron removal from aqueous solution was investigated. Methodology: Different parameters such as pH, coagulant dosage, and curcumin dosage that effect boron removal were tested. …

Removal of boron at different initial pH values at 25°C (initial concentration 1000 mg/L, volume of boron solution 50 mL, weight of adsorbent 2 g and shaking speed 200 rpm) FIGURE 2. Reaction of boron and curcumin to form boron-chelate complex (rosocyanine) at a slightly acidic range (pH5.5). It is obviously different

To remove the water produced during the condensation reaction scavengers like alkyl borates are employed. Unless removed, the water can react with the diketone complex, thereby reducing the curcumin yield. The boron complex dissociates into curcumin under slightly acidic conditions. Curcumin

To remove the water produced during the condensation reaction scavengers like alkyl borates are employed. Unless removed, the water can react with the diketone complex, thereby reducing the curcumin yield. The boron complex dissociates into curcumin under slightly acidic conditions. Curcumin from this reaction mixture can be …

2 Abstract: This study seeks to find a new method to enhance the percentage of boron removed from aqueous solution by using the electrocoagulation process in the presence of curcumin. The optimum current density (CD), pH and dose of curcumin were determined as the operational parameters. The results showed that …

Effect of freezing temperature on salinity removal and boron removal. The effects of freezing seawater for 44 h at different freezing temperatures (− 10 °C, − 15 °C, − 20 °C, − 25 °C, − 30 °C) on the distribution and removal of salinity (Fig. 2a) and boron (Fig. 2b) in ice/water are shown in Fig. 2.As the temperature decreased, the boron removal …

Water-stable metal–organic framework (MOF) UiO-66 was studied in boron removal from water for the first time. XRD, SEM, nitrogen adsorption/desorption isotherms, and thermogravimetric analysis (TG) were employed to confirm the structure. The boron adsorption kinetics, isotherms, thermodynamics, mechanism, and recycling on UiO-66 …

Boron Removal from Aqueous Solution Using Curcumin-impregnated Activated Carbon . × Close Log In. Log in with Facebook Log in with Google. or. Email. Password. Remember me on this computer. or reset password. Enter the email address you signed up with and we'll email you a reset link. ... Boron Removal from Aqueous Solution Using Curcumin ...

The technology commonly used for the removal of boron from aqueous solutions, the application of chelating resin, seems to be one of the most effective methods [28].It was shown that chelating resins containing ligands having three or more hydroxyl groups, located in the cis position, the so-called "Vis-diols", show a high selectivity to …

Methods for boron removal from aqueous solutions — A review. JoannaWolska, MarekBryjak. Show more. Add to Mendeley. …

Removal of boron from ceramic industry wastewater by adsorption–flocculation mechanism using palm oil mill boiler (POMB) bottom ash and polymer. Water Research 43(13): 3326-3334. Halim, A.A., 2012. Boron removal from aqueous solutions using curcumin-aided electrocoagulation.

Boron removal from aqueous solution using coagulation- flocculation with curcumin : A response surface methodology. 2021 •. azhar abdul halim. Aim: Application of response …

Keywords: Boron, Curcumin method, Protoplasts, Arabidopsis, Yeast. Background. ... /100 × g (for protoplast) for 5 min. Wash the pellet with 25 ml ice cold water to remove boric acid from the pellet. Resuspend the pellet in 400 µl of Milli-Q water in a 1.5 ml tube. Heat the samples at 90 °C for 30 min and vortex to release intracellular B ...

To remove the water produced during the condensation reaction scavengers like alkyl borates are employed. Unless removed, the water can react with the diketone complex, thereby reducing the curcumin yield. The boron complex dissociates …

The preparation of the curcumin–acetic acid reagent is one of the key factors affecting the reproducibility of the curcumin method, and previous studies have reached contradictory conclusions regarding its stability (Uppström, 1968, Goldman et al., 1975).We compared the stability of the reagent stored at room temperature (~ 23 °C) …

In this study, the maximum boron removal was obtained at pH 5.6 and the optimum contact time was 120 ABSTRACT This study has been done to determine the isotherm and kinetic adsorption of boron on activated carbon that been modified with curcumin.

Boron removal from seawater is challenging as it can not be achieved by conventional treatment methods. This paper provides a state-of-the-art review on technologies employed most recently, including ion-exchange, membrane processes, hybrid systems and other methods to remove boron from seawater efficiently. 1.

The boron removal by the AMF process can be divided into the following four main steps: (1) the resin absorbs the boron in the solution; (2) the microfiltration …

Corpus ID: 27643516; Boron removal from aqueous solution using curcumin-impregnated activated carbon @article{Halim2013BoronRF, title={Boron removal from aqueous solution using curcumin-impregnated activated carbon}, author={Azhar Abdul Halim and Nor Alia Roslan and Nor Shamsiah Yaacub and Mohd Talib Latif}, journal={Sains Malaysiana}, …

The remediation of boron-spiked water has caught much attention in the past few decades (Tagliabue et al., 2014), giving rise to various deboronation methods including membrane-base technology, adsorption, (electro)coagulation and precipitation.Membrane-based technology contains a variety of methods that remove boron by distinct …

Last Updated: 07 Jan 2024. Request PDF | Boron removal from aqueous solutions using curcumin-aided electrocoagulation | This study seeks to find a new …

Given that boron removal from water by electrocoagulation is a variable of different processes including electrochemical processes, coagulation and flotation. ... Boron removal from aqueous solutions using curcumin-aided electrocoagulation. Middle-East J. Sci. Res., 11 (2012), pp. 583-588. View in Scopus Google Scholar [7]

Aim: Application of response surface methodology (RSM) to determine optimum parameters in the coagulation-flocculation process aided by curcumin for boron removal from aqueous solution was investigated. Methodology: Different parameters such as pH,

Abstract: This study seeks to find a new method to enhance the percentage of boron removed from aqueous solution by using the electrocoagulation process in the …

The greatest boron removal was found in the investigation for batch and fixed-bed adsorption characteristics of boron on curcumin-impregnated activated carbon (Cur-AC) at pH 5.5 and 120 min of ...

The highest boron removal in fixed-bed column adsorption was achieved up to 99% for the first 5 min at an inlet concentration of 890 mg/L and a flow rate of 8.0 …