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Simultaneous Removal of Antibiotics and Heavy Metals with Poly(Aspartic Acid)‐Based Fenton Micromotors
Author(s) -
Ding Xiaoyong,
Liu Yilin,
Chen Xiao,
Liu Wenjuan,
Li Jing
Publication year - 2021
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.202100448
Subject(s) - human decontamination , adsorption , hydrogen peroxide , catalysis , pollutant , degradation (telecommunications) , environmental remediation , water treatment , contamination , chemistry , materials science , composite number , metal ions in aqueous solution , chemical engineering , nanotechnology , metal , waste management , environmental science , environmental engineering , organic chemistry , computer science , composite material , telecommunications , ecology , engineering , biology
The discharge of diverse pollutants has led to a complex water environment and posed a huge health threat to humans and animals. Self‐propelled micromotors have recently attracted considerable attention for efficient water remediation due to their strong localized mass transfer effect. However, a single functionalized component is difficult to tackle with multiple contaminants and requires to combine different decontamination effects together. Here, we introduced a multifunctional micromotor to implement the adsorption and degradation roles simultaneously by integrating the poly(aspartic acid) (PASP) adsorbent with a MnO 2 ‐based catalyst. The as‐prepared micromotors are well propelled in contaminated waters by MnO 2 catalyzing hydrogen peroxide. In addition, the catalytic ramsdellite MnO 2 (R‐MnO 2 ) inner layer is decorated with Fe 2 O 3 nanoparticles to improve their catalytic performance, contributing to an excellent degradation ability with 90% tetracycline (TC) removal in 50 minutes by enhanced Fenton‐like reactions. Combining the attractive adsorption capability of poly (aspartic acid) (PASP), the composite micromotors offer an efficient removal of heavy metal ions in short time. Moreover, the designed micromotors are able to simultaneously remove antibiotic and heavy metals in mixed contaminants circumstance just in single treatment. This multifunctional micromotor with distinctive decontamination ability exhibits a promising prospective in treating multiple pollutants in the future.