The effect of different green alkali modification processes on the clinoptilolite surface as adsorbent for ammonium ions; characterization and application
作者: Mostafa R. AbukhadraMohamed Gameel BasyounyAhmed M. El-SherbeenyMohammed A. El-Meligy
作者单位: 1Geology Department, Faculty of Science, Beni-Suef University, Egypt
2Materials Technologies and Their Applications Lab, Geology Department, Faculty of Science, Beni-Suef University, Beni Suef City, Egypt
3Physics Department, Faculty of Science, Beni-Suef University, Egypt
4Industrial Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi Arabia
5Advanced Manufacturing Institute, King Saud University, Riyadh, 11421, Saudi Arabia
刊名: Microporous and Mesoporous Materials, 2020, Vol.300
来源数据库: Elsevier Journal
DOI: 10.1016/j.micromeso.2020.110145
关键词: ClinoptiloliteGreen alkali modificationAdsorptionAmmoniumRealistic application
英文摘要: Abstract(#br)Clinoptilolite natural zeolite was modified by different alkali bearing salts (K, Na, Ca, and Mg) by a green process in the presence of green tea extract as promising green adsorbents for ammonium ions. The modified products displayed significant enhancement in the ion exchange capacities, the surface area, and the morphological properties which was supported by different characterization techniques. The novel modified products achieved stunning adsorption capacities for ammonium ions with experimental q max of 162 mg/g, 190 mg/g, 230 mg/g and 296 mg/g for K/clinoptilolite, Na/clinoptilolite, Ca/clinoptilolite, and Mg/clinoptilolite, respectively. The theoretical values which were obtained from the equilibrium model are 197.5 mg/g, 219.7 mg/g, 256.2 mg/g, and 340 mg/g for the...
全文获取路径: Elsevier  (合作)
影响因子:3.365 (2012)

  • clinoptilolite 斜发沸石
  • ammonium 
  • adsorbent 吸附剂
  • modification 诱发变异
  • green 绿色
  • different 不相同的
  • surface 
  • effect 效应
  • application 申请
  • alkali