A novel 3D porous modified material with cage-like structure: fabrication and its demulsification effect for efficient oil/water separation

Wang, Zhongde; Xiao, Caiming; Wu, Zhijun; Wang, Yuting; Du, Xiaoze; Kong, Weiqiang; Pan, Dahai; Guan, Guoqing; Hao, Xiaogang

doi:10.1039/c6ta10248d

Cited by 99 publications

(36 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… Sun et al (2005) used lotus leaf as template and repeatedly poured it with PDMS to obtain the same structure as lotus leaf surface, with contact angle up to 160°. Wang et al (2017) have obtained superhydrophobic three-dimensional porous foam copper (SOCF) by controlled electro deposition and chemical modification. This is the first time that a three-dimensional porous material with a larger pore size than the emulsion droplet is used to separate the emulsified oil-water mixture.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application of Superhydrophobic Copper Mesh by Chemical Etching and In-situ Growth

et al. 2021

View full text Add to dashboard Cite

Oily sewage and floating oil in the ocean post a huge threat to the ecological environment, therefore, developing an efficient separation for oil/water mixtures is an urgent need. Currently, superhydrophobic materials exhibit excellent oil/water separation ability. In this study, a superhydrophobic copper mesh prepared by the chemical etching method and the in-situ growth method and the performance evaluation are introduced. The oxide layer on the surface of the copper mesh is first removed by pickling, and then immersed in FeCl3 solution for chemical etching to make the surface rough, stearic acid (SA) is used for in-situ growth to reduce the surface energy, a superhydrophobic oil-water separation copper mesh is obtained. The water contact angle (WCA) of the copper mesh is more than 160°. The copper mesh is chemically stable and can effectively adsorb floating oil and separate the oil-water mixture. After several oil-water separation experiments, the oil-water separation efficiency can still be above 98%. The effects of the concentration of FeCl3 and SA on the contact angle and oil-water separation efficiency are investigated, the results show that when the concentration of FeCl3 is 2% and SA is 1.5%, the WCA and oil-water separation efficiency are the largest. The research used a simple and environmentally friendly method to prepare the oil-water separation copper mesh, which has important application significance for water quality restoration.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and Application of Superhydrophobic Copper Mesh by Chemical Etching and In-situ Growth

et al. 2021

View full text Add to dashboard Cite

show abstract

“…However, the issues of membrane fouling and weak intrusion pressure restrict the long-term operation. Recently, two meshes with opposite wettability were modified by polymer brush and combined to treat oil/water solutions, resulting in high efficiency under high flux and keeping surfaces free from oil contamination [40,41]. Nevertheless, membranes cannot be used to adsorb or store the spilled oils.…”

Section: Introductionmentioning

confidence: 99%

Superwetting Polymeric Three Dimensional (3D) Porous Materials for Oil/Water Separation: A Review

2019

View full text Add to dashboard Cite

Oil spills and the emission of oily wastewater have triggered serious water pollution and environment problems. Effectively separating oil and water is a world-wide challenge and extensive efforts have been made to solve this issue. Interfacial super-wetting separation materials e.g., sponge, foams, and aerogels with high porosity tunable pore structures, are regarded as effective media to selectively remove oil and water. This review article reports the latest progress of polymeric three dimensional porous materials (3D-PMs) with super wettability to separate oil/water mixtures. The theories on developing super-wetting porous surfaces and the effects of wettability on oil/water separation have been discussed. The typical 3D porous structures (e.g., sponge, foam, and aerogel), commonly used polymers, and the most reported techniques involved in developing desired porous networks have been reviewed. The performances of 3D-PMs such as oil/water separation efficiency, elasticity, and mechanical stability are discussed. Additionally, the current challenges in the fabrication and long-term operation of super-wetting 3D-PMs in oil/water separation have also been introduced.

show abstract

“…Therefore, the detection of pollutants and the purification of contaminated water have drawn much attention in recent years . Many excellent researchers have devoted into developing various oil/water separating materials to clean organic compounds from water sources, such as nanofibers, metal foams, polymer sponges, metal meshes, membrane, and aerogels . Among above materials, copper meshes have been paid much attention due to their big voids, good mechanical stability, high separation efficiency, and stable durability .…”

Section: Introductionmentioning

confidence: 99%

Trifunctional Copper Mesh for Integrated Oil/Water Separation, SERS Detection, and Pollutant Degradation

Cheng

et al. 2019

Adv Materials Inter

View full text Add to dashboard Cite

In real environment, wastewaters containing various oily organic solvents or soluble dyes bring serious damage to the environment and threaten the health of human. Although substantial efforts are devoted to removing oily pollutants from water, it cannot solve the problem of water pollution thoroughly since some soluble dyes still exist in separated water phase. Meanwhile, it is still a challenge to directly detect pollutants with low concentration in oil/water mixtures by surface‐enhanced Raman spectroscopy (SERS) technique owing to the mutual interference of Raman signals by mixed organic solvents and soluble dyes. Therefore, developing an effective solution for separating oil/water mixture, detecting, and degrading pollutants simultaneously is highly desired. In this work, a trifunctional superhydrophobic copper mesh which integrates the separation, detection, and further degradation of the dyes in one material is reported. The trifunctional copper mesh is fabricated by in situ growing Au/AgCl nanoparticles on the surface of copper mesh. Au/AgCl nanoparticles improve the roughness and hydrophobic performance of copper mesh. Au provides abundant plasmonic hotspots which are beneficial to the improved SERS activity, and AgCl exhibits highly efficient photocatalytic ability for degrading organic dyes. The idea of integrating three functions in one substrate will open a novel horizon for realistic wastewater purification.

show abstract

A novel 3D porous modified material with cage-like structure: fabrication and its demulsification effect for efficient oil/water separation

Abstract: A modified 3D porous material with cage-like structure for efficient oil/water and emulsion separation.

Cited by 99 publications

References 39 publications

Preparation and Application of Superhydrophobic Copper Mesh by Chemical Etching and In-situ Growth

Preparation and Application of Superhydrophobic Copper Mesh by Chemical Etching and In-situ Growth

Superwetting Polymeric Three Dimensional (3D) Porous Materials for Oil/Water Separation: A Review

Trifunctional Copper Mesh for Integrated Oil/Water Separation, SERS Detection, and Pollutant Degradation

Contact Info

Product

Resources

About