TY - JOUR
T1 - In-situ Growth of Biocidal AgCl Crystals in the Top Layer of Asymmetric Polytriazole Membranes
AU - Villalobos, Luis Francisco
AU - Chisca, Stefan
AU - Cheng, Hong
AU - Hong, Pei-Ying
AU - Nunes, Suzana Pereira
AU - Peinemann, Klaus-Viktor
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This research was supported by King Abdullah University of Science and
Technology (KAUST). The authors thank Mohamed Nejib Hedhili for his assistance
with the XPS analysis and Maria Peredo Silva for the illustrations in Figure 1.
PY - 2016
Y1 - 2016
N2 - Scalable fabrication strategies to concentrate biocidal materials in only the surface of membranes are highly desirable. In this letter, tight-UF polytriazole membranes with a high concentration of biocide silver chloride (AgCl) crystals dispersed in only their top layer are presented. They were made following a simple dual-bath process that is compatible with current commercial membrane casting facilities. These membranes can achieve a 150-fold increase in their antimicrobial character compared to their silver-free counterpart. Moreover, fine-tuning of their properties is straightforward. A change in the silver concentration in one of the baths is enough to tune the permeance, molecular weight cut-off (MWCO) and silver loading of the final membrane.
AB - Scalable fabrication strategies to concentrate biocidal materials in only the surface of membranes are highly desirable. In this letter, tight-UF polytriazole membranes with a high concentration of biocide silver chloride (AgCl) crystals dispersed in only their top layer are presented. They were made following a simple dual-bath process that is compatible with current commercial membrane casting facilities. These membranes can achieve a 150-fold increase in their antimicrobial character compared to their silver-free counterpart. Moreover, fine-tuning of their properties is straightforward. A change in the silver concentration in one of the baths is enough to tune the permeance, molecular weight cut-off (MWCO) and silver loading of the final membrane.
UR - http://hdl.handle.net/10754/609005
UR - http://pubs.rsc.org/en/Content/ArticleLanding/2016/RA/C6RA08090A
UR - http://www.scopus.com/inward/record.url?scp=84971299717&partnerID=8YFLogxK
U2 - 10.1039/C6RA08090A
DO - 10.1039/C6RA08090A
M3 - Article
SN - 2046-2069
VL - 6
SP - 46696
EP - 46701
JO - RSC Adv.
JF - RSC Adv.
IS - 52
ER -