Content area
Abstract
Water pollution is a major environmental issue with the rapid development of industry. Therefore, advanced technologies and materials are needed to remove pollutants from contaminated waters. The adsorption process displays many advantages such as high adaptability and removal efficiency for water sources of varying quality. Hydrogels have recently attracted attention due to their high adsorption capacity and structural stability, yet several issues remain to be explored, such as the number of reuse and engineering applications. Here, we review hydrogels for the removal of methylene blue from wastewater, with focus on hydrogel preparation and properties, adsorption performance and mechanisms, reusability and comparison with biological and chemical oxidation methods.
Details
1 Tongji University, State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Shanghai, China (GRID:grid.24516.34) (ISNI:0000000123704535); Tongji University, Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China (GRID:grid.24516.34) (ISNI:0000000123704535)
2 University of Alberta, Department of Chemical and Materials Engineering, Edmonton, Canada (GRID:grid.17089.37) (ISNI:0000 0001 2190 316X)
3 University of Shanghai for Science and Technology, College of Environment and Architecture, Shanghai, China (GRID:grid.267139.8) (ISNI:0000 0000 9188 055X)
4 Sinopec Beijing Research Institute of Chemical Industry, Environmental Protection Research Institute, Beijing, China (GRID:grid.418531.a) (ISNI:0000 0004 1793 5814)