title: One-pot synthesis of MnO2-chitin hybrids for effective removal of methylene blue.
abstract: Manganese dioxide (MnO2)-chitin-hybrid material was prepared by a facile "one-pot" synthesis method. MnO2-chitin hybrid was used for the effective removal of methylene blue (MB) from liquid solution as model for wastewater treatment. The hybrid obtained was characterized by field emission scanning electron microscopy and energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction and thermogravimetric analysis. The effect of pH and temperature were studied. MnO2-chitin hybrid showed high performance for oxidative decolorization and removal of MB. Typically, 25mL of MB (20mg/L) can be completely decolorized in 2.5min with 8.5mg of the MnO2-chitin hybrid. The hybrid material exhibited excellent recyclability and durability with the degradation value of 99% for MB after ten consecutive cycles.
authors: Fiber and Biopolymer Research Institute, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA. Electronic address: rohan.dassanayake@ttu.edu.
authors: Rohan S
authors: RS
authors: Dassanayake
authors: Fiber and Biopolymer Research Institute, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA.
authors: Erandathi
authors: E
authors: Rajakaruna
authors: Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409, USA.
authors: Hanna
authors: H
authors: Moussa
authors: Fiber and Biopolymer Research Institute, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409, USA. Electronic address: noureddine.abidi@ttu.edu.
authors: Noureddine
authors: N
authors: Abidi
mesh_terms: D000327:Adsorption; D060326:Chemistry Techniques, Synthetic; D002686:Chitin / Q000138:chemical synthesis* / Q000737:chemistry*; D003116:Color; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D017895:Manganese Compounds / Q000737:chemistry*; D008751:Methylene Blue / Q000737:chemistry* / Q000302:isolation & purification*; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D013696:Temperature; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000302:isolation & purification*; D018508:Water Purification
chemical_list: D017895:Manganese Compounds; D010087:Oxides; D014874:Water Pollutants, Chemical; D002686:Chitin; D008751:Methylene Blue; C016552:manganese dioxide
keywords: Biopolymers; Chitin; Hybrid materials; Manganese dioxide