Methylene blue contaminated water sanitization with alginate/compact discs waste-derived activated carbon composite beads: Adsorption studies

This study involves the investigation of altering the photocatalytic activity of TiO2using composite materials. Three different forms of modified TiO2, namely, TiO2/activated carbon (AC), TiO2/carbon (C), and TiO2/PANi, were compared. The TiO2/carbon composite was obtained by pyrolysis of TiO2/PANi prepared by in situ polymerization method, while the TiO2/activated carbon (TiO2/AC) was obtained after treating TiO2/carbon with 1.0 M KOH solution, followed by calcination at a temperature of 450°C. X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TG-DTA), Brunauer-Emmet-Teller (BET), and UV-Vis spectroscopy were used to characterize and evaluate the prepared samples. The specific surface area was determined to be in the following order: TiO2/AC > TiO2/C > TiO2/PANi > TiO2(179 > 134 > 54 > 9 m2 g−1). The evaluation of photocatalytic performance for the degradation of methylene blue under UV light irradiation was also of the same order, with 98 > 84.7 > 69% conversion rate, which is likely to be attributed to the porosity and synergistic effect in the prepared samples.

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FOTODEGRADASI ZAT WARNA TEKSTIL METHYLENE BLUE DAN CONGO RED MENGGUNAKAN KOMPOSIT ZnO-AA DAN SINAR UV

Jurnal Kimia ◽

10.24843/jchem.2016.v10.i01.p18 ◽

2016 ◽

Author(s):

Ni Putu Diantariani ◽

Iryanti Eka Suprihatin ◽

Ida Ayu Gede Widihati

Keyword(s):

Methylene Blue ◽

Zinc Oxide ◽

Activated Carbon ◽

Congo Red ◽

Uv Light ◽

Carbon Composite ◽

Textile Dyes ◽

Initial Concentration ◽

Photodegradation Rate ◽

Radiation Time

Research on photodegradation of textile dyes of methylene blue (MB) and congo red (CR) using ZnO-Activated Carbon composite and ultraviolet (UV) light has been done. This research included synthesis zinc oxide (ZnO), synthesis ZnO-Activated Carbon, and the application of composite to degrade textile dyes of MB and CR. In this research studied the effect of pH, concentration and time of UV radiation towards photodegradation percentages of dyes. Then it determined the rate and the effectivity of photodegradation of MB and CR dyes using ZnO-Activated Carbon composite. The result showed that photodegradation of MB reach optimal condition at pH 11 with radiation time 4 hour, whereas CR is at pH 5 with the same radiation time. The more initial concentration of MB and CR applicated, the lower of photodegradation percentages. Constanta of photodegradation rate of MB and CR dyes using ZnO-Activated Carbon composite are 0.8316 and 1.4938 hour-1 respectively. ZnO-Activated Carbon composite as a photocatalyst can degrade effectively MB and CR dyes with photodegradation percentages of 99.40±0.23 % and 99.61±0.24% respectively.

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Adsorption studies of methylene blue onto ZnCl2-activated carbon produced from buriti shells (Mauritia flexuosa L.)

Journal of Industrial and Engineering Chemistry ◽

10.1016/j.jiec.2014.02.007 ◽

2014 ◽

Vol 20 (6) ◽

pp. 4401-4407 ◽

Cited By ~ 122

Author(s):

Osvaldo Pezoti ◽

André L. Cazetta ◽

Isis P.A.F. Souza ◽

Karen C. Bedin ◽

Alessandro C. Martins ◽

...

Keyword(s):

Methylene Blue ◽

Activated Carbon ◽

Adsorption Studies ◽

Mauritia Flexuosa

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Preparation of sulfonated porous carbon nanotubes/activated carbon composite beads and their adsorption of low density lipoprotein

Journal of Materials Science Materials in Medicine ◽

10.1007/s10856-011-4368-6 ◽

2011 ◽

Vol 22 (8) ◽

pp. 1855-1862 ◽

Cited By ~ 19

Author(s):

Yuemei Lu ◽

Qianming Gong ◽

Fangping Lu ◽

Ji Liang ◽

Lijun Ji ◽

...

Keyword(s):

Carbon Nanotubes ◽

Activated Carbon ◽

Porous Carbon ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Carbon Composite ◽

Low Density ◽

Composite Beads

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Calcium alginate-organobentonite-activated carbon composite beads as highly effective adsorbent for bisphenol A and 2,4,5-trichlorophenol: kinetics and equilibrium studies

10.5004/dwt.2017.20873 ◽

2017 ◽

Vol 83 ◽

pp. 294-305 ◽

Cited By ~ 4

Author(s):

Nassima Djebri ◽

Nadia Boukhalfa ◽

Mokhtar Boutahala ◽

Didier Hauchard ◽

Nacer-Eddine Chelali ◽

...

Keyword(s):

Activated Carbon ◽

Bisphenol A ◽

Calcium Alginate ◽

Carbon Composite ◽

Equilibrium Studies ◽

Composite Beads ◽

Highly Effective

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Kinetics and Isotherms Studies of methylene blue Basic Dye from Aqueous Solution onto Selenicereus grandiflorus Activated Carbon

Asian Journal of Materials Chemistry ◽

10.14233/ajmc.2019.ajmc-p71 ◽

2019 ◽

Vol 4 (1-2) ◽

pp. 1-6

Author(s):

M. Mahadeva Swamy ◽

B.M. Nagabhushana ◽

Nagaraju Kottam

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Activated Carbon ◽

Point Of Zero Charge ◽

Blue Dye ◽

Methylene Blue Dye ◽

Batch Mode ◽

Adsorption Studies ◽

Kinetics And Isotherms ◽

Adsorbent Dose

The present experiment explains the effectiveness of adsorption studies of methylene blue dye from aqueous solutions on activated carbon from Selenicereus grandiflorus (SG) treated with conc. sulfuric acid. The sulphuric acid-treated Selenicereus grandiflorus activated carbon (SGAC) was used as low-cost adsorbent for the removal of methylene blue dye from aqueous solution. It suggests an ideal alternative method to adsorption of dye compared to other expensive treatment options. The adsorption studies have been conducted at different experimental parameters, i.e., pH, contact time, adsorbent dose and initial dye concentration. The batch mode experiments were conducted by different adsorbent dose (0.03-0.150 g per 50 mL), pH of the solution (2-12), effect of time (3-18 min), initial dye concentration (10 mg/L), point of zero charge and regeneration of spent adsorbent studies. Langmuir model shows better fit to the equilibrium data (R2 = 0.966) than Freundlich model. The adsorption capacity (Qm) of SGAC increases with increasing dosage where Qm is 16.17 mg g-1.

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