Separation Science and Technology最新文献

Magnetic hydrophobic carbon black sponge: Preparation and oil removal mechanism study 磁性疏水性炭黑海绵的制备及除油机理研究

4区工程技术

Separation Science and Technology Pub Date : 2026-06-25 DOI: 10.1080/01496395.2026.2693509

Y Y Liu, Mengyao Xu, Cheng Li, Dou Wang, Xiang Guo

{"title":"Magnetic hydrophobic carbon black sponge: Preparation and oil removal mechanism study","authors":"Y Y Liu, Mengyao Xu, Cheng Li, Dou Wang, Xiang Guo","doi":"10.1080/01496395.2026.2693509","DOIUrl":"https://doi.org/10.1080/01496395.2026.2693509","url":null,"abstract":"The severe environmental and ecological problems caused by oily wastewater from industries such as petrochemicals have become a major global concern. In recent years, magnetic hydrophobic materials have become a research hotspot due to their combined magnetic responsiveness and high-efficiency oil-water separation performance. This study presents a convenient strategy: using a mechanical ball-milling method to prepare CB/Fe3O4 composite particles, which synergistically integrate hydrophobicity and magnetism on the surface of a melamine sponge, successfully fabricating the G-MS@CF material. The tunable hierarchical structure of the prepared sponge significantly enhances its water repellence. Owing to its high porosity, excellent water repellence, strong paramagnetism, and robust mechanical stability, the sponge exhibits remarkable oil-spill cleanup performance, characterized by fast oil absorption speed, high adsorption capacity, good recyclability, and convenient recovery. The adsorption capacity for high-viscosity oils can reach up to 49.5 g/g. In addition, the modified sponge can also be used to separate stable emulsions of oil/water mixtures based on its selective adsorption of oil. This study effectively addresses the key issues of insufficient synergy between magnetism and hydrophobicity, easy detachment of coatings, and difficulty in recovery in conventional materials. It provides an efficient magnetic adsorbent material for the treatment of oily wastewater.","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":"1 1","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"2026-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148394376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient separation of water-in-oil emulsions using superhydrophobic melamine sponges 超疏水三聚氰胺海绵高效分离油包水乳剂

4区工程技术

Separation Science and Technology Pub Date : 2026-05-12 DOI: 10.1080/01496395.2026.2664658

Shenfeng Yuan, Zhuoye Liao, Zhirong Chen, Q H Zhang, Hong Yin

引用次数: 0

Adsorption of methylene blue on humic acid activated-carbon from weathered coal 风化煤腐植酸活性炭吸附亚甲基蓝的研究

4区工程技术

Separation Science and Technology Pub Date : 2026-02-02 DOI: 10.1080/01496395.2026.2622947

Yueshu Bai, Di Wu, Xin Guo, Hongwang Liang, Xiushuang Zhang, litong ma

引用次数: 0

Removal of organic phosphorus from water by CaLa–LDH adsorption: Performance and mechanism CaLa-LDH吸附法去除水中有机磷的性能及机理

4区工程技术

Separation Science and Technology Pub Date : 2026-01-19 DOI: 10.1080/01496395.2026.2618048

Wenqiang Wang, F. Wang, Zhen Jia, Chunhui li, Aili Wang, Shubo Shang

{"title":"Removal of organic phosphorus from water by CaLa–LDH adsorption: Performance and mechanism","authors":"Wenqiang Wang, F. Wang, Zhen Jia, Chunhui li, Aili Wang, Shubo Shang","doi":"10.1080/01496395.2026.2618048","DOIUrl":"https://doi.org/10.1080/01496395.2026.2618048","url":null,"abstract":"Water pollution from phosphonates is receiving increasing attention and adsorption is a promising treatment method. In this work, CaLa – layered double hydroxide (CaLa – LDH) was used to adsorb phosphonates (1-hydroxyethane-1,1-diphosphonic acid, HEDP) from water, demonstrating an excellent theoretical maximum adsorption capacity of 89.41 mg-P/g at pH 3.0. The pseudo-second-order kinetic model accurately describes the adsorption process of CaLa – LDH for HEDP, implying that the adsorption process was governed by chemisorption. The heterogeneous adsorption of the CaLa – LDH was confirmed by the Sipes model. Among co-existing ions (SO42−, Cl−, NO3−, CO32−, PO43−, Ca2+, and Mg2+), CO32− and PO43− hindered adsorption. Characterization analysis showed that the adsorption mechanisms may involve electrostatic attraction, chemisorption, ion exchange, and complexation. Additionally, the CaLa – LDH adsorbent can be reused up to four times, with adsorption capacity recovering to over 90%. During the fifth cycle, adsorption capacity decreased to 41%. The CaLa – LDH was applied to remove phosphorus from the actual leachate concentrate, with satisfactory results confirming its potential for actual wastewater treatment.","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":"61 9","pages":"1409-1422"},"PeriodicalIF":0.0,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147883978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Humic acid modified lignin-based microspheres to enhance acid Orange 7 dye and tetracycline removal from wastewater 腐植酸改性木质素微球提高废水中酸性橙7染料和四环素的去除效果

4区工程技术

Separation Science and Technology Pub Date : 2025-12-12 DOI: 10.1080/01496395.2025.2600670

Zhiyi Wang, Hongjuan Bai, Zifan Liu, Zihan Jin, Jingxiang Lv, Ziyu Zhang, Le Wang

引用次数: 0

Nucleation mechanism of sodium dihydrogen phosphate in supersaturated solution 磷酸二氢钠在过饱和溶液中的成核机理

4区工程技术

Separation Science and Technology Pub Date : 2025-12-08 DOI: 10.1080/01496395.2025.2600669

Zheng Yayuan, Hao Huang, Huaiming Du

引用次数: 0

Transforming water treatment: Polyoxometalate-Ionic liquid magnetic nanocomposites for microplastic-free industrial effluents 转化水处理：用于无微塑料工业废水的多金属氧酸-离子液体磁性纳米复合材料

4区工程技术

Separation Science and Technology Pub Date : 2025-12-08 DOI: 10.1080/01496395.2025.2591164

Iqra Ayoub, Tahani Rahil Aldhafeeri, Hameed Ullah, Ahmed M. Fallatah, Farooq Khurum Shehzad, Khalid Mahmood, Uzma Saleem, Hafiz Muhammad Asif

引用次数: 0

Robust superhydrophilic/underwater superoleophobic cotton fabric decorated by β-FeOOH and PVA with excellent oil-water separation and photodegradation properties 由β-FeOOH和PVA装饰的超亲水/水下超疏油棉织物，具有优异的油水分离和光降解性能

4区工程技术

Separation Science and Technology Pub Date : 2025-11-29 DOI: 10.1080/01496395.2025.2595175

Yongfei Zhu, Jiayi Li, Shujuan Yu

引用次数: 0

Modified polyether amine via alkylation and their demulsification performance for W/O crude oil emulsion 烷基化改性聚醚胺及其对W/O原油乳状液的破乳性能

4区工程技术

Separation Science and Technology Pub Date : 2025-11-25 DOI: 10.1080/01496395.2025.2591145

Shijie Tang, Jiaxue Li, Hailin Yang, Ming Duan, Shenwen Fang

{"title":"Modified polyether amine via alkylation and their demulsification performance for W/O crude oil emulsion","authors":"Shijie Tang, Jiaxue Li, Hailin Yang, Ming Duan, Shenwen Fang","doi":"10.1080/01496395.2025.2591145","DOIUrl":"https://doi.org/10.1080/01496395.2025.2591145","url":null,"abstract":"This study evaluated the thermal and electrical dehydration performance of eight polyether amines with varying molecular weights and HLB values for W/O crude oil emulsion breaking before and after alkylation modification. The experimental results demonstrated that the dehydration rates of polyether amine both before and after modification were less than 30%. However, all polyether amines can enhance the electrical dehydration rate, with the modified polyether amines having higher dehydration rate. Specifically, the modified polyether amine P20-H2.8 achieved a dehydration rate of 64.29% under conditions of 4 kV, 60°C, and a dosage of 200 mg/L, which is 2.25 times higher than that without any chemical agent addition. Interfacial property studies revealed that the modified polyether amines exhibited superior interfacial activity and stronger ability to reduce the elastic modulus of the oil-water interface under the electric field, thereby contributing to their better demulsification performance. Nevertheless, the electrical dehydration rate of the modified polyether amine P20-H2.8 was still much lower than that of conventional block polyether demulsifier, indicating a need for further improvement in interfacial activity. Although the research results of polyether amines are not very good, it expands the research direction of demulsifiers and provides some new insights for demulsifier development.","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":"61 1","pages":"107-117"},"PeriodicalIF":0.0,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147893427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-cost Artocarpus heterophyllus (jackfruit) seed/polypyrrole composite for sequestration of diclofenac sodium from water medium 低成本菠萝蜜种子/聚吡咯复合材料对水介质中双氯芬酸钠的吸附

4区工程技术

Separation Science and Technology Pub Date : 2025-11-24 DOI: 10.1080/01496395.2025.2591206

Zhiyang Xia, Lina Wang, Wenqing Wei, Yan Wang

引用次数: 0