Article
Nanoscience & Nanotechnology
Yulei Li, Baoying Shi, Xiayu Luan, Zhanhua Hao, Yufeng Wang
Summary: In this study, a superhydrophobic filter paper was developed for oil-water separation, showing a high contact angle and fast absorption of oil droplets. The filter paper can efficiently separate various immiscible oil-water emulsions, and even after multiple cycles, the separation efficiency remains high.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Paper & Wood
Hui Li, Huimin Zhang, Yiding Luo, Hongbo Shi, Lincai Peng
Summary: This study presents a facile method to prepare durable and sustainable superhydrophobic-superoleophilic paper with excellent anti-bacterial adhesion, self-cleaning, and separation performance, which can effectively prevent and eliminate bacterial contamination.
Article
Engineering, Environmental
Wanwen Shan, Jiang Du, Kai Yang, Tianbin Ren, Decheng Wan, Hongting Pu
Summary: A novel superhydrophobic and superoleophilic polystyrene/carbon nanotubes foam (PCF) was successfully fabricated for oil/water separation, with high absorption capacity and fast absorption rate. The foam also efficiently removes organic liquids and shows potential in oil spill treatment and chemical accident remediation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Ceramics
Mengmeng Yang, Lixia Yang, Zhaofeng Chen, Yang Ding, Manna Li, Qiong Wu, Tianlong Liu, Lihao Liu
Summary: By using a simple two-step dipping method, an environmentally friendly and durable modified melamine sponge with superhydrophobic properties was fabricated. The sponge, named MS/rGO/AC/PDMS, has a multi-stage pore structure due to the fixation of active carbon and reduced graphene oxide on the melamine sponge skeleton with polydimethylsiloxane glue. The as-prepared sponge showed excellent water repellency with a water contact angle of up to 164 degrees. Used for oil/water separation, MS/rGO/AC/PDMS demonstrated outstanding oil-water selectivity, high oil sorption ability (up to 120 g/g), and separation efficiency over 99.85%.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Chemical
Jingjing Wei, Pei Nian, Yuxuan Wang, Xiaojuan Wang, Yongda Wang, Nan Xu, Yibin Wei
Summary: This study reports the preparation of ZnO nanoflower modified SiC composite ceramic membranes with superhydrophobic-superoleophilic wettability. The membranes exhibit outstanding wettability and improved separation performance for water-in-oil emulsion. The optimal membrane shows high oil flux and water rejection, and may offer new insights into practical emulsion separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Polymer Science
Chun-Hua Liu, Jiao-Ping Shang, Xing Su, Shuang Zhao, Yun Peng, Yi-Bao Li
Summary: Water is a crucial resource for biological and social development. Oily wastewater pollution has become a serious global challenge. Researchers have successfully fabricated a bamboo cellulose foam with special wetting characteristics and excellent oil-absorption performance using a simple and environmentally friendly method. The foam has a high oil absorption capacity and recyclability, as well as resistance to acid and alkali corrosion. Due to the biodegradable and low-cost nature of bamboo cellulose, this superhydrophobic/superoleophilic foam has great potential for oily wastewater treatment.
Review
Materials Science, Multidisciplinary
Seyedabbas Rasouli, Nima Rezaei, Hamideh Hamedi, Sohrab Zendehboudi, Xili Duan
Summary: SHSO membranes have shown high efficiency in selectively separating oil from oil-water mixtures, but their stability under acid and alkaline environments, as well as the adsorption of heavier components of crude oils, still require further research. Additionally, the fouling performance of SHSO membranes in water-derived fouling has not been well studied in oil-water separation applications.
MATERIALS & DESIGN
(2021)
Article
Environmental Sciences
Haonan Duan, Honghong Lyu, Boxiong Shen, Jingya Tian, Xinyu Pu, Fumei Wang, Xudong Wang
Summary: Efficient and environmentally friendly oil-water separation methods are key to solving leakage accidents during oil production and transportation. The development of a high-performance oil absorbent through the loading of ball-milled biochar and octadecylamine on the skeleton of melamine foam is reported in this work. The modified foam shows high oil absorption capacity, recyclability, and stability in a wide pH range.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Chemical
Patrycja Makos -Che Lstowska, Edyta S. Lupek
Summary: This paper presents a simple method of impregnating a melamine sponge with deep eutectic solvents (DES) obtained from natural sources. The selected DES were found to have high sorption capacities, superhydrophobic and superoleophobic properties, low density, high porosity, and excellent stability. Furthermore, they can be regenerated multiple times without loss of sorption capacity. Therefore, DES-MS may serve as a green and low-cost alternative for removing oil from water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Soo Min Lim, Jaeil Ryu, Eun-Ho Sohn, Sang Goo Lee, In Jun Park, Jinkee Hong, Hong Suk Kang
Summary: This study presents a highly flexible and mechanically durable superhydrophobic/superoleophilic coating for efficient oil/water separation and oil absorption. The coating is applied through a simple immersion process, and exhibits superhydrophobicity with robust mechanical stability and flexibility/elasticity. It provides an effective means of cleaning oil spills with high selectivity and excellent reusability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Xin Zhang, Chuanbo Hu, Junjie Lin, Huawei Yin, Jingchun Shi, Jianting Tang, Beiyue Ma, Tingzhen Li, Kangning Ren
Summary: In this study, a superhydrophobic-superoleophilic quartz sand material was designed and synthesized for efficient oil-water separation. The results showed that the material exhibited high water contact angle and oil contact angle, which were attributed to its unique micro/nanostructures and low surface energy. Additionally, the material demonstrated good durability, self-cleaning capacity, thermostability, and anticorrosion properties, making it highly promising for practical applications in oil-water separation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Materials Science, Ceramics
Hadi Shayesteh, Ahmad Rahbar-Kelishami, Reza Norouzbeigi
Summary: In this study, hedgehog-like micro/nanostructure nickel particles were successfully fabricated via a hydrothermal route and modified with octadecyltrichlorosilane (ODTS) to exhibit superhydrophobic/superoleophilic properties, making them suitable for oil/water separation. The dense narrow thorns of the nickel particles contribute to their high sorption capacity for various organic solvents and oils, and they also demonstrate good resistance. Moreover, the modified particles can be used for oil/water emulsion separation with high efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Chaoyun Bai, Chuanbo Hu, Peiyuan Ni, Xin Zhang, Wenxin Zhang, Si Zhang, Jianting Tang, Tingzhen Li, Ying Li
Summary: In this study, a superhydrophobic-superoleophilic polyvinyl alcohol sponge modified by stearic acid/nano-TiO2 particles was constructed for oil-water separation. The sponge showed a water contact angle of 163 degrees, a water sliding angle of less than 3 degrees, and an oil contact angle of 0 degrees. The modified sponge could adsorb 5-8 times more oil than its own mass and maintain the oil sorption capacity even after being reused for 5 times.
SURFACES AND INTERFACES
(2023)
Article
Polymer Science
Feng Liu, Xin Di, Xiaohan Sun, Xin Wang, Tinghan Yang, Meng Wang, Jian Li, Chengyu Wang, Yudong Li
Summary: A novel solution for removing viscous oil on water surfaces, the superhydrophobic/superoleophilic PDMS/SiO2 aerogel fabric gathering device (SFGD), has been introduced. The SFGD can self-drivenly collect floating oil on the water surface and filter it into its porous fabric interior through the effects of surface tension, gravity, and liquid pressure. The SFGD demonstrates exceptional recovery efficiency for various oils, bringing the separation process closer to practical application.
Article
Engineering, Chemical
Yun-Yun Song, Xu Zhang, Jia-Lei Yang, Zhong-Qiang Zhang, Guang-Gui Cheng, Yan Liu, Guo-Jun Lv, Zhao-Peng Yu
Summary: Industrial wastewater and produced water containing oil droplets must be processed properly to meet environmental standards before discharge, as it can pose a serious threat to marine life, the ecological environment, and human health. To address the challenge of oil-water separation, a superhydrophobic-superoleophilic surface with conical micro-arrays was developed to achieve ultrafast sorption of micro-oil droplets in water, providing a theoretical basis and technical support for fabricating underwater apparatuses for efficient oil droplet recovery from multiphase mixtures.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
