TY - JOUR
T1 - Synthesis and catalytic utilization of bimetallic systems for wastewater remediation
T2 - A review
AU - Quiton, Khyle Glainmer N.
AU - Lu, Ming Chun
AU - Huang, Yao Hui
N1 - Funding Information:
The authors are grateful to the Ministry of Science and Technology, Taiwan ( MOST 107-2221-E-041-001-MY3 and MOST 106-2622-E006-037-CC2 ) for the financial support with this work. Special thanks to Engr. Carl Francis Lacson and Ma. Antonette Rubios for their honest and helpful comments and suggestions during the course of this work.
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2021/1
Y1 - 2021/1
N2 - The environment is affected by agricultural, domestic, and industrial activities that lead to drastic problems such as global warming and wastewater generation. Wastewater pollution is of public concern, making the treatment of persistent pollutants in water and wastewater highly imperative. Several conventional treatment technologies (physicochemical processes, biological degradation, and oxidative processes) have been applied to water and wastewater remediation, but each has numerous limitations. To address this issue, treatment using bimetallic systems has been extensively studied. This study reviews existing research on various synthesis methods for the preparation of bimetallic catalysts and their catalytic application to the treatment of organic (dyes, phenol and its derivatives, and chlorinated organic compounds) and inorganic pollutants (nitrate and hexavalent chromium) from water and wastewater. The reaction mechanisms, removal efficiencies, operating conditions, and research progress are also presented. The results reveal that Fe-based bimetallic catalysts are one of the most efficient heterogeneous catalysts for the treatment of organic and inorganic contamination. Furthermore, the roles and performances of bimetallic catalysts in the removal of these environmental contaminants are different.
AB - The environment is affected by agricultural, domestic, and industrial activities that lead to drastic problems such as global warming and wastewater generation. Wastewater pollution is of public concern, making the treatment of persistent pollutants in water and wastewater highly imperative. Several conventional treatment technologies (physicochemical processes, biological degradation, and oxidative processes) have been applied to water and wastewater remediation, but each has numerous limitations. To address this issue, treatment using bimetallic systems has been extensively studied. This study reviews existing research on various synthesis methods for the preparation of bimetallic catalysts and their catalytic application to the treatment of organic (dyes, phenol and its derivatives, and chlorinated organic compounds) and inorganic pollutants (nitrate and hexavalent chromium) from water and wastewater. The reaction mechanisms, removal efficiencies, operating conditions, and research progress are also presented. The results reveal that Fe-based bimetallic catalysts are one of the most efficient heterogeneous catalysts for the treatment of organic and inorganic contamination. Furthermore, the roles and performances of bimetallic catalysts in the removal of these environmental contaminants are different.
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U2 - 10.1016/j.chemosphere.2020.128371
DO - 10.1016/j.chemosphere.2020.128371
M3 - Review article
C2 - 33182123
AN - SCOPUS:85091561585
VL - 262
JO - Chemosphere
JF - Chemosphere
SN - 0045-6535
M1 - 128371
ER -