Colloids and Surfaces A: Physicochemical and Engineering Aspects最新文献

{"title":"A novel activation scheme for fine cassiterite flotation by using a metal ion modified collector","authors":"Qifang Zheng ,&nbsp;Liuyang Dong ,&nbsp;Peilun Shen ,&nbsp;Dianwen Liu","doi":"10.1016/j.colsurfa.2025.136310","DOIUrl":"10.1016/j.colsurfa.2025.136310","url":null,"abstract":"<div><div>The large specific surface area of fine cassiterite poses significant challenges to its flotation recovery. Metal ions have been shown to enhance the flotation performance of collectors. This study investigated the influence and synergistic mechanism of silver ion and salicylhydroxamic acid on the flotation behavior of fine cassiterite. At a pH of 8, the addition of 5 × 10^–4 mol/L silver ion increased cassiterite recovery from 56.83 % to 83.36 %, thereby indicating the synergistic activation effect of silver ion on cassiterite flotation. Zeta potential and contact angle analyses indicated that silver ion facilitated the adsorption of salicylhydroxamic acid on the cassiterite surface, thereby enhancing the hydrophobicity of the cassiterite surface. The corresponding mechanism tests indicated that silver ion treatment changed the chemical environment of oxygen O atoms on the cassiterite surface, thereby facilitating the formation of C–H, C–N, and N–O bonds. This change was attributable to the adsorption of silver ion on O sites of the cassiterite surface, creating additional active sites for salicylhydroxamic acid and thereby enhancing flotation efficiency. Atomic force microscopy imaging analysis indicated that silver ion pre-activation formed new hydrophobic layers on the cassiterite surface, which enhanced the adsorption capacity and stability of salicylhydroxamic acid. Thus, the flotation of fine cassiterite remains a persistent global challenge. This study offered an enhanced recovery strategy for fine cassiterite flotation.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"710 ","pages":"Article 136310"},"PeriodicalIF":4.9,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the effect of low-methane oxidizing atmosphere on pore structure during coal spontaneous combustion process","authors":"Yanxiao Yang ,&nbsp;Huiyong Niu ,&nbsp;Haiyan Wang ,&nbsp;Gongda Wang ,&nbsp;Lulu Sun ,&nbsp;Yunchuan Bu ,&nbsp;Yikang Liu ,&nbsp;Qingqing Sun","doi":"10.1016/j.colsurfa.2025.136308","DOIUrl":"10.1016/j.colsurfa.2025.136308","url":null,"abstract":"<div><div>As the depth of coal mining increases, the complex interactions between coal, oxygen, and gas in the goaf significantly affect coal spontaneous combustion behavior. However, the impact of low-gas oxidizing atmospheres on the pore structure during coal spontaneous combustion has not been sufficiently explored. This study systematically analyzes the pore structure evolution of three coal samples with different degrees of metamorphism in a low-gas oxidizing atmosphere based on low-temperature nitrogen adsorption experiments. The study focuses on the independent mechanisms by which oxygen and methane concentrations influence the coal spontaneous combustion process. The experimental results show that the adsorption/desorption isotherms for lignite and anthracite coal are of Type IV with H3-type hysteresis loops, while bituminous coal follows a Type II isotherm. The pore structure response to the oxidizing atmosphere varies significantly across coal samples of different metamorphic degrees. Anthracite is most responsive to the oxidizing atmosphere, followed by bituminous coal, while lignite is the least sensitive. Increasing methane concentration promotes spontaneous combustion for all three coal samples. In contrast, increasing oxygen concentration accelerates spontaneous combustion of lignite and anthracite, but its effect on bituminous coal is temperature-dependent. Oxygen concentration only significantly accelerates spontaneous combustion of bituminous coal when the temperature exceeds 200°C. The results of this study provide a theoretical basis for predicting and preventing coal spontaneous combustion in low-gas environments.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"711 ","pages":"Article 136308"},"PeriodicalIF":4.9,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143219159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of gold nanoparticle concentration on photoacoustic response of Au-PDMS nanocomposite films","authors":"Yukun Ji ,&nbsp;Jianping Sun ,&nbsp;Yatao Ren ,&nbsp;Renxi Gao ,&nbsp;Hong Qi","doi":"10.1016/j.colsurfa.2025.136309","DOIUrl":"10.1016/j.colsurfa.2025.136309","url":null,"abstract":"<div><div>Polydimethylsiloxane composite films containing light-absorbing materials are widely used in photoacoustic ultrasonic transducers. Their photoacoustic performances are crucial to the application of ultrasound transducers. This work investigated the effect of gold nanoparticle volume fraction on the photoacoustic pressure of gold-polydimethylsiloxane nanocomposite films based on a multiscale model. The variation in density, heat capacity, thermal conductivity, thermal expansion coefficient, longitudinal wave sound velocity, and absorption coefficient of the nanocomposites are discussed as a function of gold nanospheres doping volume fraction. As the gold nanoparticle volume fraction increases, comprehensively considering the contribution of each physical parameter to the photoacoustic pressure amplitude results in an underestimation of the photoacoustic pressure amplitude. Such deviation generates an optimum concentration that maximizes the photoacoustic pressure amplitude when the thickness of the composite film remains constant. On this basis, the film thickness and gold nanosphere volume fraction are optimized. The optimized results are of great theoretical significance in improving the performance of laser-induced photoacoustic transducers.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"710 ","pages":"Article 136309"},"PeriodicalIF":4.9,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Protonation behavior study of the active sites on typical sulfide minerals surface using surface complexation model","authors":"Chuanxi Peng ,&nbsp;Xinzhuang Fu ,&nbsp;Zhen Niu ,&nbsp;Wei Sun ,&nbsp;Tong Yue","doi":"10.1016/j.colsurfa.2025.136307","DOIUrl":"10.1016/j.colsurfa.2025.136307","url":null,"abstract":"<div><div>Sulfide minerals are the critical sources for extracting valuable nonferrous metals such as lead, copper, and zinc, which are indispensable across various industrial sectors. Flotation is the pivotal technology for separation and enrichment of these sulfide minerals. The core mechanism of flotation lies in the selective adsorption of flotation reagents on the minerals surface. However, there are few quantitative studies regarding the protonation reaction of active sites on the surface of sulfide minerals. In this research, the Surface Complexation Model (SCM) is innovatively applied to quantitatively analyze the protonation characteristics of active sites on sphalerite, galena, pyrite, and chalcopyrite surfaces, providing the basis for clarifying the adsorption behavior of flotation agents and developing efficient reagents. By analyzing the crystal lattice structures and cleavage plane characteristics of the minerals, the types of active sites were determined. Subsequently, the hydrogen ion interactions with mineral surfaces was investigated by potentiometric titration, and the equilibrium equations of protonation reaction was established. The corresponding protonation constants and site densities were calculated by iterative fitting using Newton-Raphson method. In the process of data validation, the theoretical and fitted site densities of the mineral primary cleavage planes were compared. Additionally, by substituting the protonation constants into the equilibrium equations, a high correlation between the fitted surface potential under different pH conditions and the measured zeta potential values was revealed. This result confirms the accuracy of the fitted protonation constants and site densities and further validates the reliability of the Surface Complexation Model. For the first time, this research systematically applies the surface complexation model (SCM) to accurately analyze the protonation characteristics of the surface active sites of typical sulfide ores, which provides an important prerequisite for deepening the understanding of the interaction between the typical sulfide ore surfaces and reagents and the surface charge distribution. It is helpful to improve the flotation process and design flotation reagents, thereby enhancing the efficiency and accuracy of the beneficiation process.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"710 ","pages":"Article 136307"},"PeriodicalIF":4.9,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial tension between water and pentane saturated with methane","authors":"Taiki Yamashita ,&nbsp;Taro Iwai ,&nbsp;Saman Alavi ,&nbsp;Ryo Ohmura","doi":"10.1016/j.colsurfa.2025.136295","DOIUrl":"10.1016/j.colsurfa.2025.136295","url":null,"abstract":"<div><div>The plugging of natural gas pipelines caused by hydrate formation has been recognized as a problem in the oil and gas industry for approximately 90 years. Interfacial tension is an important physical property to understand the dynamics of multiphase flow, namely, natural gas, condensate, and water, inside the pipelines. This paper describes our measurements of the interfacial tension between water and pentane saturated with methane as a model for the fluids in the pipelines transporting gas and condensate. The measurements were conducted by the pendant drop method in the temperature range between 278.2 K and 293.2 K, and the methane pressure range between 1.1 MPa and 13.7 MPa. The uncertainty of the measurements is typically below 1.5 mN<span><math><mo>∙</mo></math></span>m⁻¹. The interfacial tension decreased with increasing temperature at 2 MPa. As for the pressure dependence at 288.2 K, with increasing pressure, the interfacial tension decreased from 49.12 mN<span><math><mo>∙</mo></math></span>m⁻¹ at 1.1 MPa to 47.64 mN<span><math><mo>∙</mo></math></span>m⁻¹ at 4.0 MPa. The interfacial tension remained roughly constant until 8.7 MPa with the value being 48.02 mN<span><math><mo>∙</mo></math></span>m⁻¹ and then increased to 59.81 mN<span><math><mo>∙</mo></math></span>m⁻¹ at 12.9 MPa. The decrease of the interfacial tension between 1.1 MPa and 4.0 MPa could be attributed to the increase of the methane molecule adsorption at the interface. In the pressure range between 4.0 MPa and 8.7 MPa, it is likely that the methane adsorption at the water – pentane interface became saturated. The increase of the interfacial tension above 8.7 MPa is a novel phenomenon which requires further investigation.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"710 ","pages":"Article 136295"},"PeriodicalIF":4.9,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soft/hard double network supramolecular hydrogel with multifunctional properties for flexible strain sensor","authors":"Xiangli Chen,&nbsp;Peng Tian,&nbsp;Tian Zhang,&nbsp;Yuxuan Wang,&nbsp;Haonan Guo,&nbsp;Qianqian Li,&nbsp;Bo Ti","doi":"10.1016/j.colsurfa.2025.136293","DOIUrl":"10.1016/j.colsurfa.2025.136293","url":null,"abstract":"<div><div>Flexible sensors are widely used in wearable devices, embedded equipment, bionic skin, and soft robots due to their flexibility, extensibility, and bendability. Supramolecular gels play a crucial role in the field of flexible sensors due to their structural designability, tunable mechanical properties, and multi-stimulus responsiveness. However, they face challenges such as poor stability, low mechanical strength, and complex preparation processes, which currently limit their potential applications. In this study, 5,10,15,20-tetra-(4-carboxyphenyl) porphyrin (TCPP) and Li⁺ ions construct a rigid, cross-linked skeleton via metal coordination bonds, forming a hard network. The introduction of PVA benefits the gel by enhancing its flexibility through energy dissipation. The interaction between the rigid and flexible networks enhances the mechanical strength of the PVA/TCPP/LiCl (PTL) supramolecular gel. The gel's elongation at break reaches 1000 %, and its maximum tensile strength attains 3.93 MPa. Notably, the hydrogel nearly fully recovers at 200 % strain after five consecutive loading-unloading cycles. The hydrogel demonstrates excellent self-healing properties, with crack traces healing almost full recovery within 60 min. Additionally, it exhibits strong adhesion to a variety of hard and soft substrates. The hydrogel also maintains its soft properties at −40 °C, possesses thermal stability, UV shielding, and electrical conductivity. These properties can be applied to flexible sensors that accurately monitor human movement, including vocal cord vibration and limb bending, and can be applied in extreme conditions such as cold environments.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"710 ","pages":"Article 136293"},"PeriodicalIF":4.9,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Imine-bonded covalent organic frameworks with abundant carboxyl groups and triazine rings for the efficient and selective removal of ciprofloxacin in actual water environments","authors":"Shuaijie Zhang,&nbsp;Douchao Mei,&nbsp;Ke Li,&nbsp;Bing Yan","doi":"10.1016/j.colsurfa.2025.136304","DOIUrl":"10.1016/j.colsurfa.2025.136304","url":null,"abstract":"<div><div>Due to the poor treatment efficiency of wastewater with ciprofloxacin (Cip), effective removal of Cip has become a significant topic in waste management. In this study, a carboxylated COF (TzAm COF) with triazine rings is synthesized by “one-step” approach of Schiff reaction. The prepared TzAm COF possesses multiple functional binding sites, including triazine rings and carboxyl groups, enabling it achieves highly removal efficiency of ciprofloxacin in real water samples. Additionally, TzAm COF presents high Cip adsorption capacity of 217.86 mg·g⁻¹, good thermal and pH stability, strong resistance to ionic interference, good regenerability and excellent selectivity for Cip. Additionally, the process of monolayer adsorption and chemisorption are confirmed by the isotherms and kinetics of adsorption. The adsorption mechanisms of π-π interaction, electrostatic attraction, hydrogen bonding, channel adsorption and hydrophilic–lipophilic balance are further demonstrated by XPS, EDX, Zeta potential and FT-IR. This work aims to provide new ideas for developing novel adsorbents through the synthesis and adsorption application of carboxylated COFs.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"710 ","pages":"Article 136304"},"PeriodicalIF":4.9,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harnessing solar energy: Black TiO2 nanoparticles for superior photothermal and power generation","authors":"V Parkavi ,&nbsp;Jayabal K ,&nbsp;Pandiyarasan Veluswamy","doi":"10.1016/j.colsurfa.2025.136297","DOIUrl":"10.1016/j.colsurfa.2025.136297","url":null,"abstract":"<div><div>This research focuses on synthesizing reduced Titanium Oxide, a promising photothermal material for energy harvesting applications. Reduced Titanium Oxide, which is otherwise known as Black TiO₂, is synthesized using a chemical reduction method where Sodium Borohydride acts as the reducing agent. The study introduces a ground breaking approach of developing a textile-based photothermal layer strategically integrated between Photovoltaic panel and Thermoelectric Generators. The novel photothermal layer is introduced to absorb wide range of solar spectrum, thereby improving the overall efficiency of the combined PV-TEG. Black TiO₂ coated on cellulose fabric through screen-printing technique acts as photothermal layer. By integrating this photothermal layer, the voltage output of the device was significantly enhanced to 3.9 V for TiO₂ and 4.6 V for Black TiO₂ as photothermal layers respectively, compared to 2.3 V for the standalone PV. The structural study reveals a shift towards higher angle indicating the oxygen vacancy in Black TiO₂. UV characterization of the photothermal material showed a band gap reduction from 2.5 eV for TiO₂ paste on cellulose fabric to 1.4 eV for Black TiO₂ paste and exhibit bathochromic effect. Thermal conductivity tests revealed values of 0.08 W/mK for TiO₂ nanoparticles and 0.1 W/mK for the Black TiO₂. Thermal imaging indicated a 2.8 °C temperature gradient in the S1PV-TEG system along with the photothermal layer. These findings demonstrate a significant advancement in solar energy utilization, promoting sustainable power generation.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"710 ","pages":"Article 136297"},"PeriodicalIF":4.9,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of a high-performance soy-based adhesive based on biomimetic construction of organic-inorganic hybrid structure","authors":"Yantao Xu ,&nbsp;Yankun Liu ,&nbsp;Anbo Pan ,&nbsp;Yuanwei Wang ,&nbsp;Shuting Zhang ,&nbsp;Genghao Zheng ,&nbsp;Xiaochun Zhang","doi":"10.1016/j.colsurfa.2025.136281","DOIUrl":"10.1016/j.colsurfa.2025.136281","url":null,"abstract":"<div><div>Bio-based soy protein adhesive has the potential to solve the problems of formaldehyde-based adhesive dependence on petrochemical resources and formaldehyde gas release. However, the existing cross-linked modified soy protein adhesives still suffer from problems such as high adhesive brittleness, poor mold resistance and flame retardancy. Therefore, it is of great significance to develop a soy protein adhesive with excellent comprehensive properties such as adhesive toughness, mildew resistance, and flame retardancy. In this study, soy protein was combined with Polyethylenimine (PEI), highly active epoxy crosslinker (TGA), and various inorganic metal compounds to construct an organic-inorganic hybrid structure inspired by oyster adhesion. The results indicated that in comparison with unmodified soy protein adhesive, SPI/PEI/TGA/AlCl₃ adhesive had the highest water resistance bonding strength, increased by 76.4 % to 0.97 MPa (≥0.7 MPa), meeting the requirements of the indoor Class II plywood standard, and the wet/dry bonding toughness increased by 44.8 % and 10.2 %, respectively, to 1.39 MJ/m² and 1.62 MJ/m². This is attributed to the organic-inorganic hybrid structure in the adhesive system, inorganic materials can effectively bear and transfer external loads in the adhesive, thereby enhancing the overall strength of the adhesive; soy protein as an organic part, dissipate energy during the fracture process and improve the toughness of the adhesive. In addition, hydrogen bonds and ionic bonds break and recombine during the breaking process, further dissipating energy and enhancing the toughness of the adhesive. Compared with SPI adhesive, the anti-mildew time of the SPI/PEI/TGA/ZnCl₂ adhesive was extended from 3 days to over 20 days, and the limiting oxygen index (LOI) increased by 16.5 % to 27.5 %, indicating improved anti-mildew and flame retardancy of the adhesive. This modification method can effectively improve the comprehensive performance of soy protein adhesive, which helps promote the large-scale application of soy protein adhesive and the sustainable development of the wood-based panel industry.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"710 ","pages":"Article 136281"},"PeriodicalIF":4.9,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermoresponsive solid-liquid phase separation of the PEtOx/GO composite system for efficient recovery of uranium from wastewater","authors":"Xingliang Shen ,&nbsp;Jiangmei Zhao ,&nbsp;Ruihan Yan ,&nbsp;Zhi Cao ,&nbsp;Wentao Wang ,&nbsp;Taihong Yan ,&nbsp;Meiwen Cao","doi":"10.1016/j.colsurfa.2025.136301","DOIUrl":"10.1016/j.colsurfa.2025.136301","url":null,"abstract":"<div><div>A novel poly(2-ethyl-2-oxazoline) (PEtOx)/graphene oxide (GO) composite system has been developed for removal of uranium ions (U(VI)) from waste water via a solid-liquid phase separation. The phase separation of the composite system is triggered by temperatures higher than the low critical solution temperature (LCST) of PEtOx, producing a solution phase and a sedimentation phase. In this process, GO sheets can be fully transferred to the sedimentation, enabling efficient separation from solution. Since both GO and PEtOx can chelate strongly with U(VI) by having abundant oxygen-containing groups, such a phase separation process can be used to efficiently adsorb and enrich U(VI) in the sedimentation via a synergistic process, and the sedimentation can then be easily separated from solution. Compared to traditional liquid phase extraction system, the PEtOx/GO composite system has several advantages in U(VI) recovery. First, it is more environment-friendly by avoiding use of organic solvent. Second, the solid-liquid phase separation is advantageous for easy waste separation and recycling use of the adsorbent. Moreover, the system can be used in more harsh conditions such as low pH, high pH and high salt concentration. This study paves an innovative way for the development of novel methods for efficient U(VI) separation and recovery.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"710 ","pages":"Article 136301"},"PeriodicalIF":4.9,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}