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Application of N‐Doped MoS 2 Nanocrystals for Removal of Azo Dyes in Wastewater
Author(s) -
Lu Haijiao,
Wang Jingkang,
Tian Beiqian,
Huang Xin,
Bi Jingtao,
Wang Ting,
Hao Hongxun
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201700596
Subject(s) - adsorption , wastewater , methyl orange , nanocrystal , doping , reusability , materials science , specific surface area , chemical engineering , nanotechnology , chemistry , environmental engineering , photocatalysis , environmental science , organic chemistry , catalysis , computer science , optoelectronics , engineering , programming language , software
As persistent and detrimental contaminants, azo dyes are difficult to be removed from wastewater. It is a worldwide challenge to develop efficient technologies for their removal. Adsorption is widely recognized to be a practical, efficient, and low‐cost technology for removal of contaminants. Compared with various conventional adsorbents, MoS 2 nanocrystals possess larger specific surface area, higher surface energy, and better adsorptive properties. Since nitrogen‐doping is a common approach for modification of materials, N‐doped MoS 2 nanocrystals (NDMN) were first used as adsorbents for removal of the azo dye methyl orange. Compared with bulk MoS 2 and MoS 2 nanocrystals, NDMN showed much higher efficiency and reusability. This study provides inspiration for exploring and expanding the applications of NDMN.