TY - JOUR
T1 - Developments of Adsorptive Membranes for Selective Removal of Contaminants in Water
AU - Kirisenage, Priyalatha M.
AU - Fahlman, Bradley D
AU - Mueller, Anja
N1 - Funding Information:
This research was funded by Central Michigan University start-up funds (to I.M.) RIA 42107.
Funding Information:
This work was supported in part by the Department of Chemistry and Biochemistry and the School of Engineering and Technology at Central Michigan University. The authors would also like to thank James Dusenbury (Senior Technical Expert, DEVCOM Ground Vehicle Systems Center) for the fruitful discussions and valuable feedback provided, Scott Prentice (Instrument Technician, Central Michigan University) for the instrument training and support, and Philip Oshel (Director of Imaging Facility, Central Michigan University) for SEM training and support.
Publisher Copyright:
© 2022 by the authors.
PY - 2022/8/2
Y1 - 2022/8/2
N2 - The presence of arsenic and ammonia in ground and surface waters has resulted in severe adverse effects to human health and the environment. Removal technologies for these contaminants include adsorption and membrane processes. However, materials with high selectivity and pressure stability still need to be developed. In this work, adsorbents and adsorptive membranes were prepared using nanostructured graphitic carbon nitride decorated with molecularly imprinted acrylate polymers templated for arsenate and ammonia. The developed adsorbent removed arsenate at a capacity and selectivity similar to commercial ion-exchange resins. Ammonia was removed at higher capacity than commercial ion exchange resins, but the adsorbent showed lower selectivity. Additionally, the prepared membranes removed more arsenate and ammonia than non-imprinted controls, even in competition with abundant ions in water. Further optimization is required to improve pressure stability and selectivity.
AB - The presence of arsenic and ammonia in ground and surface waters has resulted in severe adverse effects to human health and the environment. Removal technologies for these contaminants include adsorption and membrane processes. However, materials with high selectivity and pressure stability still need to be developed. In this work, adsorbents and adsorptive membranes were prepared using nanostructured graphitic carbon nitride decorated with molecularly imprinted acrylate polymers templated for arsenate and ammonia. The developed adsorbent removed arsenate at a capacity and selectivity similar to commercial ion-exchange resins. Ammonia was removed at higher capacity than commercial ion exchange resins, but the adsorbent showed lower selectivity. Additionally, the prepared membranes removed more arsenate and ammonia than non-imprinted controls, even in competition with abundant ions in water. Further optimization is required to improve pressure stability and selectivity.
M3 - Article
SN - 2073-4360
VL - 14
SP - 3146
JO - Polymers
JF - Polymers
ER -
