2019
DOI: 10.5004/dwt.2019.24239
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Activated rice husk ash-supported silver nanoparticles as a novel adsorbent toward chloride removal

Abstract: Chloride contamination of water from climate change and salty waste water is known as a serious issue of water and wastewater treatment. In this study, Ag/ARHA (activated rice husk ash) material was designed and fabricated as a novel adsorbent for chloride removal in aqueous solution. The deposition of Ag on ARHA material was done by a facile precipitation method using AgNO 3 as precursor and NaBH 4 as reductant. The material was then characterized by Fourier transform infrared spectroscopy, X-ray diffraction,… Show more

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Cited by 3 publications
(2 citation statements)
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“…It is widely accepted that the presence of anions such as sulfate, nitrate, and phosphate may have strong effects on the adsorption of chloride ions using cation exchange resin 16 . In this study, the effect of these anions was examined at a concentration of 500 mg/L for each anion.…”
Section: Resultsmentioning
confidence: 99%
“…It is widely accepted that the presence of anions such as sulfate, nitrate, and phosphate may have strong effects on the adsorption of chloride ions using cation exchange resin 16 . In this study, the effect of these anions was examined at a concentration of 500 mg/L for each anion.…”
Section: Resultsmentioning
confidence: 99%
“…Thus, burning with releasing polluted smoke and fine ash has proven to be an inappropriate solution. Fortunately, rice husk contains both essential C and Si; thus, it is beneficial for the fabrication of nanocomposites containing SiO 2 and C, which can be employed as a great anode material for lithium-ion batteries or an effective adsorbent for the removal of pollutants in aqueous solutions. Consequently, intensive efforts have been made in exploiting rice husk as a low-cost source for synthesizing SiO 2 /C composites or carbon/Si-based materials. The methods include a sol–gel technique combined with mechanical milling, steam activation, hydrothermal coupling with a NaOH etching route, calcination cooperating with a magnesiothermic reduction reaction, calcination of the pyrolyzed rice husk in a NaOH solution, , and post-heat treatment processes before hydrolysis of tetraethyl orthosilicate to form SiO 2 shells on organic sphere templates followed by calcination in the air .…”
Section: Introductionmentioning
confidence: 99%