Article
Environmental Sciences
Isha Riyal, Gunjan Joshi, Himani Sharma, Charu Dwivedi
Summary: In this study, a hydrophobic composite sponge was developed using the dip coating and drying method to remove organic contaminants from water. The sponge, made of poly-urethane, was anchored with a hydrophobic composite of MIL-53(Al) and PDMS. The resulting sponge showed high hydrophobicity and oleophi-licity, with a wide range of oil absorption capacity and low water absorption. It was able to separate oils and solvents from water even in varying ionic strengths. The synthesized hydrophobic composite sponge was characterized using various techniques and was found to be environmentally friendly.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
Love Dashairya, Preeti Sharon Kispotta, Yogendra Mahton, Ekta Kumari, Ankit Kumar, Partha Saha
Summary: This study presents the development of a zirconium diboride modified polyurethane sponge, prepared through a dip coating technique and functionalized with octadecyl trichlorosilane for superhydrophobicity. The sponge shows great potential in removing oil/water, oil-water mixtures, and wastewater containing oil and organic solvents.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Engineering, Environmental
Yao Pang, Zongxue Yu, Haidong Chen, Qingcan Xiang, Qiuxiang Wang, Chunxia Xie, Yucheng Liu
Summary: In this study, micro-nan silica grown from the surface of fibrous sepiolite was organically modified and combined with oily epoxy resin to prepare a superhydrophobic polyurethane sponge. The sponge exhibited excellent oil-water separation performance, strong resistance to corrosion, and good mechanical stability.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Shifeng Zhang, Shupin Chen, Hongqiang Li, Xuejun Lai, Xingrong Zeng
Summary: A facile method to prepare superhydrophobic, flame-retardant and magnetic polyurethane sponge (SFRM-PUS) for oil-water separation was proposed. The SFRM-PUS exhibited excellent oil-water separation efficiency, flame-retardant performance and magnetic property, providing a new strategy for the treatment of oil spill accidents and industrial sewage emissions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Lu Qi, Wang Zhiheng, Dai Yimin, Chen Ling, Fang Chengqian, Wang Shengyun, Zhang Yue-fei, Li Yan, Wan Li
Summary: The magnetically driven hydrophobic polyurethane sponge (MHPS) synthesized in this work showed high adsorption capacity and reusability, efficiently absorbing and removing oil substances in water. Its magnetic properties make it easy to collect, indicating potential applications in oil purification and industrial wastewater treatment.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Meiyun Zhao, Yuanyuan Shang, Yufan Xiong, Xiaolong Zhang
Summary: In this study, a novel oil-water separation material FXBW-PU sponge was developed using discarded silicone rubber insulator as feedstock, which showed low cost, environmental friendliness, and excellent performance in cleaning up oil/organic solvent contamination.
Article
Green & Sustainable Science & Technology
Shadpour Mallakpour, Vajiheh Behranvand
Summary: This study developed a method to modify polyurethane sponges by hybridizing compact disc-derived activated carbon black with sodium alginate, resulting in the successful preparation of PU@D-ACB.CaA composite sponge. The composite sponge exhibited excellent adsorption performance, effectively removing dyes from wastewater, and showing a high reusability rate.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Polymer Science
Jiwei Li, Pengfei Xu, Jiankui Guo, Yangyang Luo, Linjun Shao, Guiying Xing, Chenze Qi
Summary: Oil spills and chemical leakages have caused severe environmental problems. Physical absorption is an efficient and economical approach to solve these problems. In this study, a TPU sponge absorbent with excellent absorption performance was prepared using a facile method.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
J. -f. Meng, B. -y. Song, F. Li, T. -h Li
Summary: It is highly important to develop materials with simple and cost-effective synthetic methods for the treatment of large-scale oil spills and environmental pollution caused by illegal discharge of oily wastewater. In this study, polyurethane hydrophobic sponges (PU) interconnected by chemical bonds were prepared using cerium metal-organic framework (Ce-MOF), per-fluorodecyltrimethoxysilane (PFOTS), and cellulose as raw materials to enhance their physical properties. The resulting sponge exhibits excellent superhydrophobicity, high mechanical strength, and oil absorption capacity. It can efficiently separate immiscible oil-water mixtures and water-in-oil emulsions. These characteristics make it a promising material for practical applications in oil-water separation.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Physical
Cai Ling, Dai Yimin, Fang Chengqian, Wang Zhiheng, Li Yaqi, Yang Siwen, Wang Junlong, Liu Bo, Ding Xianglong, Zhang Yue-Fei, Li Yan, Wan Li
Summary: In this study, a novel and cost-effective approach is developed to produce a photothermal-responsive smart sponge. The resulting PCPO@PU exhibits switchable wettability controlled by the temperature response induced by the photothermal effect. The PCPO@PU shows excellent separation performance and can be recycled, making it a promising material for oil-water separation in marine environments.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
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, Multidisciplinary
Seung Mo Kong, Youngbae Han, Nam-Il Won, Yang Ho Na
Summary: The article introduces a hydrophobic/oleophilic adsorbent prepared based on polyurethane sponge can play an important role in oil-water separation and can be reused. This adsorbent provides a solution for environmental protection and sustainable development.
Article
Chemistry, Physical
Jiefeng Meng, Feng Li, Taohai Li, Wei Cao
Summary: In this study, ultra-light and highly flexible poly-urethane sponges coated with dysprosium metal organic framework (Dy-MOF) were developed as 3D oil-water separators. The modified sponges exhibited superhydrophobicity and lipophilicity, enabling continuous separation of dichloromethane from water. These sponges also had high absorption capacities for oil and organic solvents, as well as resistance to temperature variations, corrosive solutions, and mechanical abrasions. The study demonstrated the potential of Dy-MOF@PU sponges for practical water treatment in complex environments.
APPLIED SURFACE SCIENCE
(2023)
Article
Polymer Science
Lana S. Maia, Fernanda R. Pinhati, Francisco M. Monteceli, Vitoria M. M. Colturato, Rennan F. S. Barbosa, Hernane S. Barud, Monique T. da Conceicao, Derval S. Rosa, Daniella R. Mulinari
Summary: Due to the industrial applications and environmental dangers of chromium compounds, the development of adsorbent materials is crucial. This study proposes a new approach using bacterial cellulose (BC) as a filler to create a castor oil-based polyurethane sponge for Cr(VI) removal. The BC fillers in the sponge increased its density and influenced its morphological, chemical structural, thermal, and sorption properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Changyuan Song, Yin Jin, Xiangyi Gu, Jianwei Shi
Summary: This study focuses on using solar-heated absorption to handle crude oil spill crisis. A carbon-doped self-repairing polyurethane sponge (CSPU) is fabricated, which can efficiently absorb and recover crude oil. The sponge has a high light absorption rate and a stable photothermal conversion performance due to the introduction of photothermal filler and chain extender. Additionally, the sponge has a self-repairing property, enabling it to repair structural damage caused during the oil recovery process. This strategy provides a sustainable and durable solution for crude oil spills.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
