TY - JOUR
T1 - Synthesis of AgCl mineralized thin film composite polyamide membranes to enhance performance and antifouling properties in forward osmosis
AU - Jin, Haiyang
AU - Rivers, Frederick
AU - Yin, Huidan
AU - Lai, Tianmiao
AU - Cay-Durgun, Pinar
AU - Khosravi, Afsaneh
AU - Thomas, Marylaura
AU - Yu, Ping
N1 - Funding Information:
The authors gratefully acknowledge the National Science and Technology Support Program (2012BAC02B03), Fundamental Research Funds for the Central Universities, China (Awards No. 2015203020213), and China Scholarship Council. We gratefully acknowledge the use of facilities with the LeRoy Eyring Center for Solid State Science and the use of facility in Biodesign institute at Arizona State University. We also gratefully acknowledge Rui Zheng from The Institute of Seawater Desalination and Multipurpose Utilization, SOA in China for the zeta-potential testing. We also acknowledge support from the National Science Foundation (NSF) NSF Nanosystems Engineering Research Center for Nanotechnology- Enabled Water Treatment (ERC-1449500) and NSF CAREER CBET-254215. Finally, we acknowledge this work was supported by NASA Office of the Chief Technologist's Space Technology Research Opportunity Early Career Faculty Grant No. NNX12AQ45G.
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/2
Y1 - 2017/2
N2 - This is the first report using an alternate soaking process (ASP) to mineralize the surfaces of thin film composite (TFC) polyamide membranes with silver chloride (AgCl) for forward osmosis (FO). Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) analysis confirmed even distribution of AgCl particles on the top of the membrane surfaces. Surface roughness, contact angle, and zeta potential measurements show that the AgCl mineralized membranes have smoother, more hydrophilic, and more negatively charged surfaces than unmodified membranes. Under FO operation (with deionized water feed and 1 M NaCl draw), we found that the mineralized membranes exhibit higher salt rejection and water flux than the original membranes. Fouling experiments with bovine serum albumin (BSA) show that the mineralized membranes have lower water flux decline ratios in BSA aqueous solution and higher water flux recovery ratios after simple hydraulic washing than unmodified TFC membranes.
AB - This is the first report using an alternate soaking process (ASP) to mineralize the surfaces of thin film composite (TFC) polyamide membranes with silver chloride (AgCl) for forward osmosis (FO). Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) analysis confirmed even distribution of AgCl particles on the top of the membrane surfaces. Surface roughness, contact angle, and zeta potential measurements show that the AgCl mineralized membranes have smoother, more hydrophilic, and more negatively charged surfaces than unmodified membranes. Under FO operation (with deionized water feed and 1 M NaCl draw), we found that the mineralized membranes exhibit higher salt rejection and water flux than the original membranes. Fouling experiments with bovine serum albumin (BSA) show that the mineralized membranes have lower water flux decline ratios in BSA aqueous solution and higher water flux recovery ratios after simple hydraulic washing than unmodified TFC membranes.
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U2 - 10.1021/acs.iecr.6b04287
DO - 10.1021/acs.iecr.6b04287
M3 - Article
AN - SCOPUS:85026921725
SN - 0888-5885
VL - 56
SP - 1064
EP - 1073
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 4
ER -