Journal of Industrial and Engineering Chemistry最新文献

{"title":"Experimental study of exergy-energy performance of stabilized carboxyl-hydroxyl MWCNT/water nanofluids as operating fluid of plate heat exchanger","authors":"Saeed Zeinal Heris ,&nbsp;Hadi Pourpasha ,&nbsp;Isa Abbasi ,&nbsp;Farshad Ataei","doi":"10.1016/j.jiec.2025.04.048","DOIUrl":"10.1016/j.jiec.2025.04.048","url":null,"abstract":"<div><div>Despite their widespread use across sectors ranging from the chemical industry to domestic systems, plate heat exchangers<span><span> (PHEXs) face challenges due to the low heat transfer capability of the working fluid and associated pressure drops. Nanofluids have the potential to exhibit excellent thermal performance and high </span>exergy efficiency<span><span> in PHEXs. However, the stability of nanofluids over time still requires more comprehensive studies. This study aimed to evaluate the effects of using carboxyl-functionalized multi-wall carbon nanotubes<span> (MWCNTs-COOH) and hydroxyl-functionalized MWCNTs in water as the working fluids on the thermal-exergy performance of a corrugated PHEX. The remarkable and novel achievement was the high stability of the nanofluids, which lasted for up to 28 days after synthesis. The maximum improvements in convection heat transfer coefficient were observed for MWCNTs-OH/water and MWCNTs-COOH/water nanofluids, with values of 35.81 % and 42.56 %, respectively. The addition of </span></span>nanoadditives at concentrations less than 0.06 wt% has a very minor impact on the fluid pressure drop compared to pure water. The highest percentage rise in pressure drop compared to water is less than 1 %. The maximum improvement in exergy efficiency of 28 % was observed with a 0.06 wt% MWCNTs-COOH/water Nanofluid at a flow rate of 4.5 L/min compared to water.</span></span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"152 ","pages":"Pages 155-174"},"PeriodicalIF":5.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145277832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biochar matrix composites for persulfate-based advanced oxidation process: Preparation, performance and activation mechanism","authors":"Quanming Zhao ,&nbsp;Xiaohui Ni ,&nbsp;Zhenjun Wang","doi":"10.1016/j.jiec.2025.04.053","DOIUrl":"10.1016/j.jiec.2025.04.053","url":null,"abstract":"<div><div>Biochar-based composite materials can efficiently activate persulfate to produce strong oxidants, enabling rapid degradation of organic pollutants<span><span> in water. Their application is crucial for advancing persulfate-based advanced oxidation technologies and achieving effective removal of organic pollutants. This research initially summarizes the preparation methods for various biochars (including sludge, straw, wood, and shell) and proposes improvement strategies for </span>persulfate activation issues. Subsequently, it explores heteroatom modification of biochar (such as nitrogen, sulfur, and boron doping), identifies limitations in the degradation of emerging organic pollutants, and offers corresponding solutions. Additionally, it summarizes the preparation methods for supported biochar catalysts (comprising metals, metal oxides, and multi-metal systems) and analyzes their application efficacy and specific activation mechanisms in persulfate degradation. This study provides technical guidance for the application of biochar-based composite materials in persulfate-based oxidation processes.</span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"152 ","pages":"Pages 1-17"},"PeriodicalIF":5.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145277825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multifunctional nitrogen doped carbon nanotube-encapsulated defect-rich cobalt-iron oxide catalyst for efficient water electrolysis and and dye removal from water","authors":"Maged N. Shaddad ,&nbsp;Abdulaziz A. Alanazi ,&nbsp;Abdullah M. Aldawsari ,&nbsp;Mshari A. Alotaibi ,&nbsp;Saba A. Aladeemy ,&nbsp;Fahad Abdulaziz ,&nbsp;Yousef S. Aljohani","doi":"10.1016/j.jiec.2025.04.050","DOIUrl":"10.1016/j.jiec.2025.04.050","url":null,"abstract":"<div><div>The development of robust, high-performance catalytic materials is essential for addressing the interlinked issues of sustainable clean energy conversion and water purification technologies. A simple single-step vacuum annealing method was utilized to enable the controlled conversion of cobalt-iron-Prussian blue analogue (CFPBA) into nitrogen-doped cobalt-iron oxide (NCFO_x<span>) nanoparticles, distinguished by oxygen vacancy-rich surfaces and uniformly encased within an Nitrogen-doped Carbon Nanotube (NCNT) shell structure. The synthesized NCFO</span>_x/NCNT catalyst demonstrates outstanding Oxygen Evolution Reaction (OER) performance, exhibiting an overpotential of only 215 mV at 10 mA cm⁻² and 297 mV at 50 mA cm⁻², coupled with remarkable long-term stability for around 40 h. Moreover, the NCFO_x/NCNT exhibits 100 % removal of Crystal Violet (CrV) dye after 5 min only, surpassing CFPBA/CNT (49 %) and CNTs (19 %) under similar conditions. The NCFO_x/NCNT core–shell nanostructure, which includes N-doping and oxygen vacancy, is considered one of the most remarkable CNTs modified by Co and Fe catalysts. This study offers an original viewpoint on the impacts of defects and proposes a comprehensive approach to develop cost-effective improvements that enhance the efficiency of both OER and dye removal from water.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"152 ","pages":"Pages 193-202"},"PeriodicalIF":5.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145277834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unraveling the selectivity of CuO/mR-TiO2 adsorbent for arsenomolybdate complex: A breakthrough in arsenic removal technologies","authors":"Ejaz Hussain ,&nbsp;Areeba Arooj ,&nbsp;Muhammad Zeeshan Abid ,&nbsp;Sobhy M. Ibrahim ,&nbsp;Mamoona Sabir ,&nbsp;Shahid Iqbal ,&nbsp;Ihtesham-ul Haq ,&nbsp;Abdul Rauf ,&nbsp;Khezina Rafiq","doi":"10.1016/j.jiec.2025.04.045","DOIUrl":"10.1016/j.jiec.2025.04.045","url":null,"abstract":"<div><div>Arsenic is extremely poisonous element and naturally exists in ground water. It’s accumulation and exposure cause cancer in human body. Therefore, its separation or removal is mandatory for the safety of consumers. Current study emphasized the selectivity of arsenic with CuO/mR-TiO₂ adsorbent. Structural characteristics of CuO/mR-TiO₂ were confirmed via XRD, FT-IR, Raman, SEM, TEM and AFM approaches. Purity, chemical compositions and stability were demonstrated by EDX, XPS and TGA analysis. Arsenic contents were potentially removed in the form of arsenomolybdate complex (AMC) adsorption onto the surfaces of CuO/mR-TiO₂. To the large scale implementation and validity, as prepared adsorbents have been assessed for samples that were collected from Tehsil Haroonabad (risky areas regarding arsenic contamination). To obtain quantitative assessment, presence of arsenic was confirmed with As-Quick^TM Kit (WHO and EPA standard). Primarily, dissolved arsenic was converted into arsenomolybdate complex (AMC) and then removed via adsorption on CuO/mR-TiO₂. Results revealed that CuO/mR-TiO₂ effectively remove arsenic from collected samples with 100% efficiency. Additionally, CuO/mR-TiO₂ is more selective for AMC than bare mR-TiO₂. Based on facts and activities, it has been concluded that current approach holds promise to replace the costly and conventional adsorbents used for arsenic treatment technologies.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 734-745"},"PeriodicalIF":5.9,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A model batch and column study for Cd(II) uptake using citric acid cross-linked Salvia spinosa hydrogel: Optimization through Box-Behnken design","authors":"Arshad Ali ,&nbsp;Amna Akram ,&nbsp;Abu Bakar Siddique ,&nbsp;Hatem M.A. Amin ,&nbsp;Lubna Zohra ,&nbsp;Azhar Abbas ,&nbsp;Muhammad Sher ,&nbsp;Muhammad Ajaz Hussain ,&nbsp;Muhammad Tahir Haseeb ,&nbsp;Muhammad Imran","doi":"10.1016/j.jiec.2025.04.046","DOIUrl":"10.1016/j.jiec.2025.04.046","url":null,"abstract":"<div><div>Herein, a polysaccharide-based hydrogel from <em>Salvia spinosa</em><span> (SSH) seeds was isolated and first esterified to citric acid cross-linked </span><em>Salvia spinosa</em><span> hydrogel (CL-SSH) using citric acid (CA) as cross-linker and then saponified with aqueous solution of sodium bicarbonate (NaHCO</span>₃) to form adsorbent, <em>i.e</em>., sodium salt of citric acid cross-linked <em>Salvia spinosa</em> hydrogel (Na-CL-SSH). The CL-SSH was characterized using Fourier transform infrared spectroscopy (FTIR), solid-state cross-polarization magic angle spinning nuclear magnetic resonance spectroscopy (CP/MAS ¹³CNMR), and scanning electron microscopy (SEM) analyses. The surface charge on Na-CL-SSH was determined by conductionng point zero-charge pH (pH<em>_ZPC</em>) analysis. The adsorption conditions were pre-optimized by applying response surface methodology Box-Behnken design (RSM-BBD) on the Cd(II) adsorption data. The high value of coefficient of determination (<em>R²</em> = 0.9980), greater <em>F</em>-value (358.61) than <em>p</em>-values (&lt; 0.0001) for ANOVA of the model design, and non-significant lack of fit (LOF) were obtained that indicated the fitness of second-order polynomial equation on the Cd(II) adsorption data. The study of adsorption kinetics, adsorption thermodynamics, and regeneration revealed that the Cd(II) adsorption was a rapid and exothermic process and occurred through ion-exchange mechanism. The column adsorption experiments for Cd(II) adsorption were also conducted and obtained data from the continuous study could be useful for scalability of the Cd(II) adsorption process by Na-CL-SSH to an industrial scale.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 746-761"},"PeriodicalIF":5.9,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid and sensitive fluorescent detection of HIV RNA using Iron-Based metal organic frameworks","authors":"Aya Elgazar ,&nbsp;Rana Sabouni ,&nbsp;Mehdi Ghommem ,&nbsp;Amin F. Majdalawieh","doi":"10.1016/j.jiec.2025.04.044","DOIUrl":"10.1016/j.jiec.2025.04.044","url":null,"abstract":"<div><div><span><span><span><span>The early detection of HIV is crucial for controlling the virus’s spread and effectively managing the disease. Although current detection methods, such as PCR and </span>ELISA, are considerably sensitive, they are often time-consuming and expensive, which limits their use in point-of-care applications. Recently, </span>Metal Organic Frameworks<span><span> (MOFs) have attracted high interest as biosensors for the detection of viruses given their unique structure and chemical properties. Herein, we investigate the use of MIL-100(Fe) as a biosensing system for the fluorescent detection of HIV </span>RNA sequences<span>. The MOF is characterized to explore its structural and morphological properties using XRD, FT-IR, BET, </span></span></span>TGA<span>, and FE-SEM. The fluorescence quenching<span> ability of MIL-100(Fe) toward P-DNA was first investigated. The experimental results revealed a high quenching efficiency of 98.02 % through mechanisms like π-π stacking and electron transfer. The experiments indicated a static quenching process, where PET exhibited greater effect over </span></span></span>FRET<span> in the quenching mechanism. The system also exhibited excellent sensitivity, with an ultra-low LOD of 5.87 pM and an incubation time<span><span> of 30 min. Furthermore, the selectivity<span> of the biosensor was confirmed using RNA sequences with one-base and two-base mismatches. These results demonstrate the capability of MIL-100(Fe) as a fast and highly sensitive biosensor for </span></span>HIV RNA<span><span> detection, offering promise for future point-of-care applications. In sum, our newly developed biosensor is a potential diagnostic tool for the reliable and accurate detection of HIV, and it may be implicated in the prevention of HIV infection and enhanced treatment/management options for HIV infected individuals and </span>AIDS patients.</span></span></span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 726-733"},"PeriodicalIF":5.9,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring allyl amine as a new structure II hydrate former: Guest inclusion behavior, structural characterization, and thermodynamic stability","authors":"Ki Hun Park ,&nbsp;Dong Hyun Kim ,&nbsp;Ji-Ho Yoon ,&nbsp;Minjun Cha","doi":"10.1016/j.jiec.2025.04.037","DOIUrl":"10.1016/j.jiec.2025.04.037","url":null,"abstract":"<div><div><span>In this study, we investigate the formation of structure II hydrate with a new hydrate-forming agent, allyl amine, in the presence of methane (CH</span>₄) gas. Our findings confirm the guest inclusion behaviors, structural characteristics, and phase equilibria of a binary (allyl amine + CH₄) hydrate. The inclusion behaviors of allyl amine and methane in the binary (allyl amine + methane) hydrate are characterized by ¹³C solid-state nuclear magnetic resonance (NMR) spectroscopy. The crystal structure of the binary (allyl amine + CH₄) hydrate is identified as the cubic <em>Fd-3m</em><span> crystal structure, and the results of Rietveld analysis suggest the potential for possible guest–host interactions via hydrogen bonding. Furthermore, the phase equilibrium experiments assess the thermodynamic stability of the (allyl amine + CH</span>₄<span>) hydrate, comparing its conditions with pure CH</span>₄<span> hydrate and other structure II hydrates. These results provide valuable insights into the fundamental understanding of complex nature of the host – guest inclusion chemistry.</span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 675-681"},"PeriodicalIF":5.9,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrosion inhibition and adsorption mechanism of novel imidazopyridine corrosion inhibitors: Electrochemical and computational studies","authors":"Rajae Salim ,&nbsp;Elhachmia Ech-chihbi ,&nbsp;Fouad Benhiba ,&nbsp;Moussa Ouakki ,&nbsp;Fouad El Kalai ,&nbsp;Noureddine Benchat ,&nbsp;Walid Ettahiri ,&nbsp;Ashwag S. Alanazi ,&nbsp;Hassan Oudda ,&nbsp;Belkheir Hammouti ,&nbsp;Mustapha Taleb","doi":"10.1016/j.jiec.2025.04.033","DOIUrl":"10.1016/j.jiec.2025.04.033","url":null,"abstract":"<div><div>The present work investigates the inhibition performance and the adsorption mechanism of two newly synthesized molecules named 6-chloro-2-(4-chlorophenyl) imidazo[1,2-a] pyridin-3-amine (IPCl3) and 6-chloro-2-(4-fluorophenyl) imidazo[1,2-a] pyridin-3-amine (IPF3). These inhibitors were evaluated for their ability to prevent the corrosion of mild steel in a 1 M hydrochloric acid (HCl) medium, using both weight loss measurements and electrochemical techniques. The extracted outcomes proved that IPCl3 and IPF3 compounds acted as effective inhibitors since reaching an inhibition percentage of 97.4 % for IPCl3 and 96.5 % for IPF3 at the optimum concentration of 0.001 M. Based on potentiodynamic polarization experiments, these molecules behaved as mixed-type inhibitors. These molecules can be adsorbed on steel surfaces, following Langmuir Isotherm. Scanning Electron Microscopy coupled with Energy Dispersive X-ray analysis (SEM-EDX) confirms the existence of a preventive layer of IPCl3 and IPF3 on the steel surface. Quantum chemical calculations (Density Functional Theory (DFT) &amp; Molecular Dynamic simulations) were also performed to compare the electronic properties of IPCl3 and IPF3 with the inhibition efficiencies achieved experimentally. They revealed the same deal with the experimental findings.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 618-638"},"PeriodicalIF":5.9,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative study on the efficiency of mercury removal from aqueous medium using MoS2-based nanocomposites","authors":"Marzieh Sadeghi,&nbsp;Mahnam Moradi","doi":"10.1016/j.jiec.2025.04.041","DOIUrl":"10.1016/j.jiec.2025.04.041","url":null,"abstract":"<div><div>Achieving the efficient and reversible remediation of mercury-polluted water through the application of advanced sorbents is highly advantageous but remains a challenging technical endeavor. The study provides a comparative investigation into the adsorption capabilities of Hg using two MoS₂ (molybdenum disulfide) based nanocomposites: reduced graphene oxide/molybdenum disulfide (rGO/MoS₂) and magnesium–aluminum layered double hydroxide/molybdenum disulfide (Mg-Al LDH/MoS₂). Synthesis of the nanocomposites was achieved via a simple hydrothermal approach, followed by their characterization using X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and Brunauer–Emmett–Teller surface area analysis methodologies. To determine the effectiveness of mercury adsorption, experiments were designed to examine the influence of several factors, including the amount of adsorbent, pH value, ionic strength, initial mercury ion concentration, and the duration of contact. The isotherm data were adjusted to the Langmuir, Freundlich and Temkin. The adsorption of Hg²⁺ onto the rGO/MoS₂ and Mg-Al MgAl Mg-Al LDH/MoS₂ was consistent with the Langmuir model, indicating monolayer adsorption. Results revealed that both rGO/MoS₂ and Mg-Al LDH/MoS₂ exhibited high adsorption capacities of 544.5 and 282.9 mg.g⁻¹ respectively, rGO/MoS₂<span> showcasing superior performance due to its enhanced surface area and synergistic effect between rGO and MoS</span>₂. The thermodynamic parameters derived from van’t Hoff plots confirm the spontaneous and endothermic characteristics of the adsorption process. The interaction pathway of Hg2⁺ ions with the nanocomposites involves Hg-S complexation alongside electrostatic attraction. The adsorption kinetics followed the pseudo-second order model. The process of analyte diffusion was jointly influenced by both intraparticle diffusion and film diffusion mechanisms. Both nanocomposites demonstrated robust reusability, retaining over 94 % adsorption capacity for at least 5 cycles. The feasibility of the as-prepared adsorbents for real-world applications was assessed by evaluating its performance in authentic water matrices, including deionized water, tap water, well water, and river water, obtained from diverse sources. This comparative study opens the possibility to use of these nanocomposites for efficient Hg²⁺ removal from polluted water, providing insights for the development of advanced materials in environmental remediation.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 700-716"},"PeriodicalIF":5.9,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel polyethylene glycol-based cationic Gemini surfactants for enhancing oil displacement efficiency of silica nanoparticles fluids","authors":"Xiaobing Lu ,&nbsp;Yancheng Zheng ,&nbsp;Guoqing Zhang ,&nbsp;Fuchang You","doi":"10.1016/j.jiec.2025.04.040","DOIUrl":"10.1016/j.jiec.2025.04.040","url":null,"abstract":"<div><div><span>Although silica nanoparticles<span><span> (NPs) have demonstrated potential for enhanced oil recovery (EOR), their individual application faces significant limitations including poor dispersion stability and elevated interfacial tension. A polyethylene glycol-bridged Gemini surfactant was synthesized and evaluated for its interfacial and emulsifying properties, with particular emphasis on its ability to enhance the oil displacement efficiency of </span>NPs. FTIR and </span></span>¹<span>H NMR characterization confirmed the successful synthesis of the novel Gemini surfactants (PEGnC). The results demonstrated an inverse correlation between critical micelle concentration (CMC) and spacer molecular weight, while interfacial activity was enhanced with increasing brine salinity. PEG6C (600 Da spacer) exhibited superior performance, achieving ultra-low interfacial tension (10</span>⁻²-10⁻³<span> mN/m) at 15–25 % NaCl concentrations while demonstrating optimal interfacial activity and emulsification capacity. The optimal PEG6C surfactant was subsequently combined with NPs to formulate a stable nanocomposite fluid, which maintained low viscosity and turbidity while achieving significantly reduced interfacial tension, indicating excellent dispersion stability and interfacial activity. The addition of PEG6C to NPs fluids could significantly improve the oil recovery efficiency of NPs fluids from 11.82 % to 30.66 %. This work establishes a promising strategy for combining Gemini surfactants with NPs to develop high-performance EOR systems.</span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"151 ","pages":"Pages 692-699"},"PeriodicalIF":5.9,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}