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Performance of Tubular Micromotors in Real Sewage for Water Treatment: Towards a Practical Scenario
Author(s) -
Xu Dandan,
Yuan Hao,
Ma Xing
Publication year - 2021
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.202100044
Subject(s) - sewage , pollutant , environmental remediation , environmental science , sewage treatment , water pollutants , materials science , environmental engineering , nanotechnology , environmental chemistry , chemistry , waste management , engineering , contamination , ecology , organic chemistry , biology
The application of micro/nanomotors as active cleaners for environmental remediation including pollutant degradation has been an ongoing scientific frontier. However, most of previous studies were conducted by using simulated sewage configured in the laboratory rather than real sewage discharged from industries. In this work, we prepared classical bubble‐propelled SiO 2 −Pt tubular micromotors and for the first time studied their motion behaviours in real sewage. We clarified the effect of the pollutants in sewage on the movement performance of the micromotors. Besides, the SiO 2 −Pt tubular micromotors were functionalized with Fe 3 O 4 to result in SiO 2 −Pt−Fe 3 O 4 , whose ability to degrade typical pollutant (methylene blue) in sewage solution was accessed. The results show that the degrading ability of the SiO 2 −Pt−Fe 3 O 4 micromotors in sewage solution is far weaker than that in deionized water. This work will provide an important reference for further exploration on using MNMs for environmental applications in realistic scenarios.