Carbon-in-Silicate Nanohybrid Constructed by In Situ Confined Conversion of Organics in Rectorite for Complete Removal of Dye from Water

The complete removal of low concentration organic pollutants from wastewater to obtain clean water has always been a highly desired but challenging issue. In response this, we proposed new strategy fabricate carbon-in-silicate nanohybrid composite by recycling dye-loaded layered clay adsorbent and converting them heterogeneous nanocomposite through an associated calcination-hydrothermal activation process. It confirmed that most the dye molecules were present in waste rectorite using intercalation mode, which can be situ converted carbon confined interlayer spacing rectorite. further hydrothermal process may improve pore structure increase surface active sites. As expected, optimal shows extremely high rates 99.6% 99.5% for Methylene blue (MB) Basic Red 14 (BR) at concentrations (25 mg/L), respectively. addition, also capacity single-component two-component dyes deionized actual (i.e., Yellow River water, Yangtze seawater) with rate higher than 99%. good reusability, adsorption efficiency is still above 93% after five regeneration cycles. adsorbent-derived used as inexpensive material decontamination dyed wastewater.