A facile surface modification of a PVDF membrane via CaCO₃ mineralization for efficient oil/water emulsion separation

Abstract

In order to solve the urgent oil spills environmental problem, it is meaningful and necessary to develop novel materials or techniques for efficient oil/water separation. Here, a new polyvinylidene fluoride...

Bioinspired superhydrophilic/underwater superoleophobic surfaces with robust wax-prevention, self-cleaning, and oil/water separation functions

“…[17][18][19][20][21][22] In the current studies, researchers have diverted their attention from improving the superwettability of the material surface to functionalizing it. [23][24][25][26][27][28] Among the traditional superwetting materials, underwater superoleophobic surfaces exhibit excellent anti-oil property with broad potential applications, such as anti-oil fouling coatings, 29,30 anti-biofouling coatings, 31,32 oil/water separation, [33][34][35][36][37] oil droplet manipulation, 38,39 and anti-blocking. 40,41 However, artificially fabricated underwater superoleophobic materials also have some disadvantages, including a complicated preparation process, poor mechanical and chemical stabilities, high costs, a single function, and environmental pollution, that limit their practical applications.…”

Spraying-induced in situ growth of CaCO3 for the modification of membranes for oil/water separation

“…17 CaCO 3 -modified membranes have been developed for oil-water separation. [18][19][20][21][22][23] Unfortunately, although these pioneering works have shown good separation performance, the shortcomings of incomplete utilization of raw materials, cumbersome synthesis processes, and difficulty in large-scale production still need to be further addressed. The spray technique is usually used to directly spray particles onto substrate surfaces to obtain desired properties.…”