Article
Engineering, Environmental
Wenbin Jin, Jingjing Wang, Hai Wan, Yuan Liang, Shuohan Huang, Yuwei Chen, Peng Wei, Qun Shao, Yanping Wang, Yong He, Yumin Xia
Summary: With the rapid development of marine transportation, oil-water separation has become an important research topic. Polyoxymethylene (POM) microfiber is a potential material for oil-water separation due to its excellent chemical stability, hydrophobicity, and lipophilicity. This paper successfully prepared POM microfiber (PMF) using a method inspired by natural bamboo cellulose. PMF showed a maximum oil adsorption capacity of 19.5 times, a water contact angle of 160 degrees in oil, and an oil-water separation efficiency of over 99%. The recyclability and deformability of PMF allowed it to be used in various oil-water separation situations. Moreover, the eco-friendly strategy used in the preparation of PMF had important implications for the development of microfiber materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Meruyert Nazhipkyzy, Dana Assylkhanova, Nurgain Araylim, Aigerim Seitkazinova, Gamzenur Ozsin, Esin Apaydin Varol
Summary: In this study, a flexible and porous hydrophilic melamine sponge was coated by superhydrophobic soot for the efficient removal of petroleum oil. The soot-coated sponge exhibited excellent superhydrophobicity and high adsorption capacity, and maintained this capacity even after multiple cycles of use, making it a promising candidate for oil-polluted water treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Materials Science, Paper & Wood
Huimin Li, Jingyi Huang, Shen Shen, Chaoran Meng, Hongbo Wang, Jiajia Fu
Summary: In this study, hydrophobic modifiers, silica nanoparticles and methyl trimethoxysilane, were used to prepare superhydrophobic sodium alginate/sodium carboxymethyl cellulose (SA/CMC) aerogel, solving the hydrophilicity issue of polysaccharide-based aerogel. The resulting aerogel exhibited a density of 0.080 g/cm(3), porosity of 94%, and excellent adsorption ability for organic solvents. The superhydrophobic aerogel demonstrated water stability, suitable compressive strength, and great potential for applications in oil-water separation and textile dye wastewater treatment.
Article
Biochemistry & Molecular Biology
Wenjie Ye, Jianfeng Xi, Yan Sun, Liucheng Meng, Huiyang Bian, Huining Xiao, Weibing Wu
Summary: This article presents a superlight and superelastic aerogel based on chitin nanofibril (ChNF) and chitosan (CS). It has a highly oriented polygon structure and exhibits good mechanical strength and resilience. The aerogel can effectively absorb various oils and organic solvents, and its pore size can be adjusted by compression to selectively separate water-in-oil emulsions of different particle sizes.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Review
Engineering, Environmental
Ning Zhang, Xianwen Yang, Yalun Wang, Yunfei Qi, Yana Zhang, Jialiang Luo, Ping Cui, Wei Jiang
Summary: The continuous increase in oil spill accidents from industries and daily life has resulted in severe economic loss, destruction of the ecological environment, and threats to human health. Designing and fabricating efficient separation membrane materials is an effective approach to solve this problem, attracting tremendous attention. This article provides a comprehensive overview of separation membrane materials with controlled pore structure and tunable wettability for highly efficient oil/water emulsion separation. Different types of membrane materials and special functional membranes have also been summarized, focusing on their application in oil/water separation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Polymer Science
Linghan Li, Tianci Xu, Faping Zhang, Chunhua Du, Song He
Summary: Using silica as the precursor, a super-flexible hydrophobic lipophilic gel solid was prepared via hydrolysis, drying, solvent replacement, and atmospheric-pressure drying. It was found that the gel had good flexibility, hydrophobicity, an amorphous structure, and a hydrophobic contact angle of 137°. The adsorption separation rate of the gel to oil substances was found to be related to the viscosity of the oil substances. The hydrophobic and oleophilic properties of flexible silicon aerogel materials have broad future development prospects and great research significance, especially in crude oil leakage and kitchen waste oil recovery.
Article
Engineering, Environmental
Yan Sun, Wenjie Ye, Jianfeng Xi, Youlu Chu, Huining Xiao, Weibing Wu
Summary: Elastic superhydrophobic aerogels prepared from chitosan and cellulose nanofibrillated fiber show excellent shape recovery and adsorption capacity for oil-water separation. The aerogel possesses highly oriented wavy structures and has broad potential in treating oil pollution.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Kaidi Ji, Yue Gao, Lufan Zhang, Shue Wang, Qinyan Yue, Xing Xu, Wenjia Kong, Baoyu Gao, Zhenshan Cai, Yuhui Chen
Summary: In this study, a compressive, ultra-light, and amphiphilic adsorbent was prepared by introducing renewable Enteromorpha into graphene aerogel for oil spill cleanup and water pollution remediation. The Enteromorpha-modified graphene aerogel exhibited excellent adsorption capacity towards oil and organic solvents, with stable performance even after multiple cycles of use. The facile strategy of fabricating the Enteromorpha-based amphiphilic EGA broadened its applications in water treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Ming Hao, Tianyi Zhang, Xiaodong Hu, Zhijun Chen, Bo Yang, Xiaoxiao Wang, Yanbo Liu, Run Wang, Yong Liu
Summary: A simple, green, and scalable method was used to fabricate 3D composite felts with large pore structures. The fabricated PET-PVDF felt showed high oil absorption capacity, excellent separation efficiency, and mechanical durability. It provides a promising approach for large-scale industrial oily wastewater treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
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
Materials Science, Composites
Zhiyong Liu, Zipeng Qin, Gang Zhao, John Tosin Aladejana, Haokun Wang, An Huang, Dinggui Chen, Yongqun Xie, Xiangfang Peng, Tingjie Chen
Summary: A hydrophobic plant fiber sponge (PFS) modified with hexamethyldisilazane (HMDS) shows high oil absorptive capacity and selectivity, demonstrating potential in oil/water separation and organic solvents removal.
COMPOSITES COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Yaning Xu, Tiantian Wu, Ziwei Cui, Lixing Kang, Jianzhang Li, Yahui Cai, Dan Tian
Summary: Frequent oil spills and oily sewage have led to serious environmental issues. This study presents a simple method for the hydrophobic modification of sponge by in-situ growth of hydrophobic TFB-BD(Me)2 COF on the surface of melamine sponge, resulting in the fabrication of a porous and hydrophobic sponge composite (MS@COF). The composite exhibited efficient oil-water separation and could also separate surfactant-stabilized water-in-oil emulsions with a high separation efficiency of 98.8%.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Xuan Peng, Zhangfu Yuan, Heming Zhao, Hong Wang, Xinge Wang
Summary: Separating oil and water in the metallurgical industry remains a challenge, and a low-cost process to prepare hydrophobic and lipophilic materials is needed. The modification of diatomite surface with polysiloxane can create coatings with excellent hydrophobicity and wear resistance. The modified diatomite coatings can effectively separate oil and water on ceramic and sponge surfaces. Moreover, the modified diatomite powder shows great potential for applications in waterproofing, self-cleaning, and oil-water separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Sai Li, Lei Zhang, Ziwei Qin, Liyi Zhou, Tiantian Lv, Fan Wu, Zongxing Liu, Chang Zhao, Chunna Yu, Guangjian Xing
Summary: In this study, a hydrophobic Ti3C2TX/polyurethane (Ti3C2TX/PU) sponge was successfully prepared for oil/water separation, exhibiting high separation efficiency and ultra-high separation flux. The sponge also showed promising performance under harsh conditions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Laura Alvarez-Gil, Juan Ramirez, Patricia Fernandez-Morales
Summary: This study used aluminum foams treated with sodium hydroxide and immersed in dodecanoic acid as a selective barrier for oil-water separation, showing high separation efficiency and oil recovery rates over 98% for all pore sizes tested.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Environmental
Dalrene Teresa Keerthika James, Augustine Osamor Ifelebuegu
WATER SCIENCE AND TECHNOLOGY
(2018)
Article
Engineering, Chemical
Augustine O. Ifelebuegu, Habibath T. Salauh, Yihuai Zhang, Daniel E. Lynch
Article
Environmental Sciences
Peter Ojo, Augustine Osamor Ifelebuegu
Article
Energy & Fuels
Elijah Acquah-Andoh, Augustine O. Ifelebuegu, Stephen C. Theophilus
Article
Environmental Sciences
F. U. Mbanaso, S. M. Charlesworth, S. J. Coupe, A. P. Newman, E. O. Nnadi
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Engineering, Chemical
Peter Ojo, Augustine Osamor Ifelebuegu
Article
Economics
Elijah Acquah-Andoh, Herdi A. Putra, Augustine O. Ifelebuegu, Andrews Owusu
Article
Environmental Sciences
Fredrick U. Mbanaso, Susanne M. Charlesworth, Stephen J. Coupe, Alan P. Newman, Ernest O. Nnadi
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Green & Sustainable Science & Technology
Mohsen Abbaszadeh, Seyed Shariatipour, Augustine Ifelebuegu
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2020)
Article
Engineering, Chemical
Uduakobong A. Edet, Augustine O. Ifelebuegu
Article
Chemistry, Physical
Uloaku Michael-Igolima, Samuel J. Abbey, Augustine O. Ifelebuegu, Eyo U. Eyo
Summary: World orange production is 60 million tons per annum, with 32 million tons of orange peel waste. Orange peel, with its low water uptake and abundant biomass, is an excellent biosorption material. This review summarizes studies on orange peel adsorption of contaminants and identifies the properties that influence adsorption. Most studies focus on heavy metals and dyes, with few on oil adsorption. Changes in the structural properties of orange peel after modification enhance its adsorption capacity.
Article
Economics
Elijah Acquah-Andoh, Onyekachi Ike, Augustine O. Ifelebuegu, Andrews Owusu
Article
Engineering, Environmental
Augustine Osamor Ifelebuegu, Peter Ojo
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2019)
Article
Public, Environmental & Occupational Health
Augustine O. Ifelebuegu, Oluwakemi A. Martins, Stephen C. Theophilus, Andrew O. Arewa