TY - JOUR
T1 - Smart Sand by Surface Engineering
T2 - Toward Controllable Oil/Water Separation
AU - Chang, Jian
AU - Ong, Chisiang
AU - Shi, Yusuf
AU - Yuan, Jiayin
AU - Ahmed, Zeyad
AU - Wang, Peng
N1 - Funding Information:
We would like to thank the King Abdullah University of Science and Technology (KAUST) and Saudi Aramco for generous funding to support this project (RGC/3/3577-01-01).
Publisher Copyright:
© 2021 American Chemical Society
PY - 2021/7/7
Y1 - 2021/7/7
N2 - Sand, an abundant resource from the nature, is a promising candidate for oil/water separation. Herein, raw sand was designed with switchable surface wettability to enable recyclability and versatility in practical oil/water separation. The “smart” sand was fabricated by grafting pH-responsive poly(4-vinylpyridine) (P4VP) and oleophilic/hydrophobic octadecyltrimethoxysilane (OTS) onto its surface. The decorated sand can be used as the oil sorbent for controllable oil sorption and desorption in response to different pHs, as well as a filter to selectively separate either oil or water on demand. This novel design offers an intelligent, low-cost, large-scale, and highly efficient route to potentially settle the issues of industrial oily wastewater and oil spill.
AB - Sand, an abundant resource from the nature, is a promising candidate for oil/water separation. Herein, raw sand was designed with switchable surface wettability to enable recyclability and versatility in practical oil/water separation. The “smart” sand was fabricated by grafting pH-responsive poly(4-vinylpyridine) (P4VP) and oleophilic/hydrophobic octadecyltrimethoxysilane (OTS) onto its surface. The decorated sand can be used as the oil sorbent for controllable oil sorption and desorption in response to different pHs, as well as a filter to selectively separate either oil or water on demand. This novel design offers an intelligent, low-cost, large-scale, and highly efficient route to potentially settle the issues of industrial oily wastewater and oil spill.
UR - http://www.scopus.com/inward/record.url?scp=85110273861&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.1c01450
DO - 10.1021/acs.iecr.1c01450
M3 - Journal article
AN - SCOPUS:85110273861
SN - 0888-5885
VL - 60
SP - 9475
EP - 9481
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 26
ER -