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@ARTICLE{Manna:856031,
      author       = {Manna, Suman and Singh, Neera and Purakayastha, T. J. and
                      Berns, Anne E.},
      title        = {{E}ffect of deashing on physico-chemical properties of
                      wheat and rice straw biochars and potential sorption of
                      pyrazosulfuron-ethyl},
      journal      = {Arabian journal of chemistry},
      volume       = {13},
      number       = {1},
      issn         = {1878-5352},
      address      = {Riyadh},
      publisher    = {Saudi Chemical Soc.},
      reportid     = {FZJ-2018-05711},
      pages        = {1247-1258},
      year         = {2020},
      abstract     = {Wheat (WBC) and rice straw biochars (RBC) prepared at 400
                      and 600 C and their deashed counterparts were characterized
                      for their physico-chemical properties using CHN analysis,
                      Brunauer–Emmett–Teller (BET), X-ray fluorescence (XRF),
                      scanning electron microscopy (SEM), 13C-nuclear magnetic
                      resonance (NMR), X-ray diffraction (XRD) and Fourier
                      transform infrared (FT-IR) techniques. Pyrazosulfuron-ethyl
                      sorption data on normal and deashed biochars could be well
                      fitted to the Freundlich model. The characteristics of
                      biochars and their adsorption capacities for
                      pyrazosulfuron-ethyl were affected by the pyrolysis
                      temperature and nature of feedstock. Rice biochars had
                      higher sorption capacities than the wheat biochars. Deashing
                      of biochars further enhanced their herbicide adsorption
                      potential by a factor of 2–3. Sorption of herbicide on
                      both normal and deashed biochars was concentration dependent
                      (1/n < 1) and decreased with increase in the herbicide
                      concentration in solution, indicating a saturation of
                      sorption sites. The nonlinearity of the isotherms increased
                      with increasing pyrolysis temperature and deashing.
                      Furthermore, adsorption of pyrazosulfuron-ethyl was affected
                      by the pH, surface area and pore volume of biochars. Results
                      of this study suggested that the mineral fraction of
                      biochars significantly affected pyrazosulfuron-ethyl
                      sorption.},
      cin          = {IBG-3},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000505076000090},
      doi          = {10.1016/j.arabjc.2017.10.005},
      url          = {https://juser.fz-juelich.de/record/856031},
}