Water, Air, & Soil Pollution

, 229:393 | Cite as

Applying Activated Carbon Derived from Coconut Shell Loaded by Silver Nanoparticles to Remove Methylene Blue in Aqueous Solution

  • Huu Tap Van
  • Thi Minh Phuong Nguyen
  • Vu Thi Thao
  • Xuan Hoa Vu
  • Tien Vinh Nguyen
  • Lan Huong Nguyen


This study developed a new adsorbent, specifically activated carbon-loaded silver nanoparticles (AgNPs-AC) by coating the silver nanoparticles (AgNPs) onto activated carbon (AC). The obtained AgNPs-AC were characterized by scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), Fourier transform infrared spectroscopy (FTIR), and Brunauer-Emmett-Teller (BET). The ability of AgNPs-AC to remove methylene blue (MB) was evaluated using different experimental factors, these being pH solution, contact time, adsorbent dose, and initial MB concentration. Results indicated that the highest adsorption capacity of MB onto AgNPs-AC was obtained when the AC was loaded onto AgNPs at the impregnation ratio of 0.5% w/w for AC and AgNPs. The best conditions in which AgNPs-AC could remove MB were as follows: pH 10, contact time lasting 120 min, and adsorbent dose being 250 mg/25 mL solution. In this scenario, the maximum adsorption capacity of MB onto AgNPs-AC was 172.22 mg/g. The adsorption isothermal equilibrium was well described by the Langmuir, Freundlich and Sips models. The Sips equations had the highest correlation coefficient value (R2 = 0.935). The pseudo-first-order and pseudo-second-order kinetic models agree well with the dynamic behavior of the adsorption of dye MB on AgNPs-AC.


Silver nanoparticle Activated carbon AgNPs-AC Methylene blue Adsorption 



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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Huu Tap Van
    • 1
  • Thi Minh Phuong Nguyen
    • 2
  • Vu Thi Thao
    • 3
  • Xuan Hoa Vu
    • 4
  • Tien Vinh Nguyen
    • 5
  • Lan Huong Nguyen
    • 6
  1. 1.Faculty of Resources and EnvironmentThai Nguyen University of Sciences (TNUS)Thai NguyenVietnam
  2. 2.Faculty of Environment and Chemical EngineeringDuy Tan University (DTU)Da NangVietnam
  3. 3.Advanced Education Program OfficeThai Nguyen University of Agriculture and Forestry (TUAF)Thai Nguyen CityVietnam
  4. 4.Faculty of Physics and TechnologyThai Nguyen University of Sciences (TNUS)Thai Nguyen CityVietnam
  5. 5.Faculty of Engineering and ITUniversity of Technology Sydney (UTS)SydneyAustralia
  6. 6.Faculty of Environment – Natural Resources and Climate ChangeHo Chi Minh City University of Food Industry (HUFI)Ho Chi Minh CityVietnam

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