Adsorption of 1-(2-Thiazolylazo)-2-Naphthol on Amberlite XAD-7 and Silica Gel: Isotherms and Kinetic Studies

Anaia, Grazielle C.; Freitas, Patricia A. M.; Suárez-Iha, Maria Encarnación Vázquez; Rocha, Fábio R.P.

doi:10.5935/0103-5053.20140012

Cited by 4 publications

(7 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The maximum adsorption capacity on the XAD7HP resin mass was determined in 2.5 h when 32% of the existing lignin in the sample was retained on the XAD7HP resin [31]. Anaia et al, 2014 studied the kinetics of 1-(2-Thiazolylazo)-2-Naphthol (TAN) adsorption using XAD7HP resin [32]. For this purpose, equilibrium was studied at different time intervals from 1 to 250 min.…”

Section: Influence Of Contact Time Between Liquid and Solid Phasementioning

confidence: 99%

“…The adsorption performance of XAD7HP was evaluated when 1-(2-Thiazolylazo)-2--Naphthol (TAN) is removed from aqueous medium onto resin mass. The quantity detected was 4.05 × 10 − 3 g/g for 1.10 × 10 − 4 mol/L [32]. Adsorption behavior of XAD7HP resin was tested for pharmaceutical compounds nalidixic acid (NAL) and acetaminophen (ACE).…”

Section: Influence Of the Pha And Lid Initial Concentrationmentioning

confidence: 99%

See 1 more Smart Citation

Removal of procainamide and lidocaine on Amberlite XAD7HP resin and of As(V), Pb(II) and Cd(II) on the impregnated resin for water treatment

Marin

Stănculescu

2022

Materials Chemistry and Physics

View full text Add to dashboard Cite

Section: Influence Of Contact Time Between Liquid and Solid Phasementioning

confidence: 99%

Section: Influence Of the Pha And Lid Initial Concentrationmentioning

confidence: 99%

Removal of procainamide and lidocaine on Amberlite XAD7HP resin and of As(V), Pb(II) and Cd(II) on the impregnated resin for water treatment

Marin

Stănculescu

2022

Materials Chemistry and Physics

View full text Add to dashboard Cite

“…The isotherm assumed heterogeneous adsorption owing to the variation of adsorption sites. This isotherm is featured with multilayer adsorption and the non-linear distribution of energy across the adsorption sites [ 46 ]. It has the main constants K F and 1/n, which were determined from the linear plot between log q e and log C e according to Equation (8) and given in Figure 7 b:

K F and n refer respectively to the capacity of adsorption and its strength ( Table 3 ).…”

Section: Resultsmentioning

confidence: 99%

Eco-Friendly NiO/Polydopamine Nanocomposite for Efficient Removal of Dyes from Wastewater

et al. 2022

View full text Add to dashboard Cite

The rapid development of industries discharges huge amounts of wastewater that contain surface water. For this reason, we used NiO/polydopamine (NiO/PDA) nanocomposite as an efficient material for the removal of Methyl violet 2B from water. It was synthesized and then characterized by Fourier Transform Infrared (FT-IR) spectroscopy, X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX) analysis, Transmission Electron Microscopy (TEM), and Brunauer–Emmett–Teller (BET). The EDX analysis confirmed the presence of O, Ni, N, and C. The composite has an average particle size of 18 nm. Its surface area is 110.591 m2/g. It was found that the efficiency of dye removal by adsorption on NiO/PDA exceeded that of bare NiO. The adsorption capacity of NiO and NiO/PDA are 126 and 284 mg/g, respectively. The effects of adsorbent dose, dye concentration, and pH on the removal efficiency were examined. The efficiency increased with increasing the adsorbent dose and pH, but dropped from 85 to 73% within 30 min as the initial dye concentration was increased from 0.984 to 4.92 mg/L. Such a drop in the removal efficiency is due to the blocking of the surface-active sites of NiO/PDA, with the high population of dye molecules derived from the continuous increase in dye concentration. The adsorption results of the dye fitted well with the pseudo-second-order kinetics and Langmuir isotherm. The reusability data showed that NiO/PDA was stable across three adsorption–regeneration cycles, thus it can be considered a good recyclable and efficient adsorbent. Because of these results, it can be considered that this method can be applied for the treatment of wastewater.

show abstract

“…SiO 2 nanoparticles have markedly different properties from those of naturally occurring quartz sand. With large effective surface area, often distinct mesoporosity, and easy functionalizability, they are good dynamic adsorbers and thus already widely used, for example, in medicine, as drug carriers, in polymers, − and as carriers of biologically active chemicals in agriculture. − Nanosilica is particularly useful in the realm of agriculture. , Plants rely on nanosilica for silicon because lignin production is influenced by silicon . Silica is a nutrient that promotes growth, increases crop output, and improves the quality of agricultural goods by assisting in the formation and regeneration of plant cell walls .…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Large-Scale Synthesis of Nanosilica from Silica Sand for Plant Stimulant Applications

Hoàng¹,

Thoai²,

Cam³

et al. 2022

ACS Omega

View full text Add to dashboard Cite

Nanosilica is a versatile nanomaterial suitable as, e.g., drug carriers in medicine, fillers in polymers, and fertilizer/pesticide carriers and potentially a bioavailable source of silicon in agriculture. The enhanced biological activity of nanosilica over quartz sand has been noted before; it is directly related to the altered physicochemical properties of the nanoparticles compared to those of the bulk material. Therefore, it is feasible to use nanosilica as a form of plant stimulant. Nanosilica synthesis is a relatively cheap routine process on the laboratory scale; however, it is not easily scalable. Largely for this reason, studies of nanosilica fertilizers are scarce. This study will focus on industrial-scale silica nanoparticle production and the application of nanosilica as a plant stimulant in maize. A variant of the sol–gel method is used to successfully synthesize nanosilica particles starting from silica sand. The resulting particles are in the size range of 16–37 nm with great purity. The potential of nanosilica as a plant stimulant is demonstrated with the increased quantity and quality of maize crops.

show abstract

Adsorption of 1-(2-Thiazolylazo)-2-Naphthol on Amberlite XAD-7 and Silica Gel: Isotherms and Kinetic Studies

Cited by 4 publications

References 1 publication

Removal of procainamide and lidocaine on Amberlite XAD7HP resin and of As(V), Pb(II) and Cd(II) on the impregnated resin for water treatment

Removal of procainamide and lidocaine on Amberlite XAD7HP resin and of As(V), Pb(II) and Cd(II) on the impregnated resin for water treatment

Eco-Friendly NiO/Polydopamine Nanocomposite for Efficient Removal of Dyes from Wastewater

Large-Scale Synthesis of Nanosilica from Silica Sand for Plant Stimulant Applications

Contact Info

Product

Resources

About