Chemical Engineering Journal最新文献

{"title":"Pilot-scale phosphorus polishing from wastewater using nano-metal oxides confined in millimeter-sized polymeric hosts: Performance and sustainability analysis","authors":"Peizhi Xu, Mingming Wang, Xin Zhao, Yanyang Zhang, Xiaolin Zhang, Wenlan Yang, Ming Hua, Weiming Zhang, Bingcai Pan","doi":"10.1016/j.cej.2025.164387","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164387","url":null,"abstract":"Nanomaterial-enabled technologies hold significant promise for advanced water treatment, however, very few cases are available particularly in pilot or field applications. This study presents a comprehensive evaluation of a pilot-scale (50 t/d) phosphorus treatment system employing nanocomposite materials at a municipal wastewater treatment plant (MWWTPs) near Taihu Lake, China. Three polymeric nanocomposites, i.e., HZO-201 (Zr-based), HFO-201 (Fe-based) and La-201 (La-based), were utilized in the fixed-bed adsorption system for comparative analysis. The removal efficiencies of total phosphorous (TP), orthophosphate (ortho-P) and organic P, along with the variation of pH, conductivity and other major co-existing substances were recorded for continuous 180-day operation with the breakthrough point set at 0.10 mg/L (TP). All three materials were able to reduce TP from an average of 0.24 to 0.02 mg/L. The effective treatable volumes before breakthrough reached 39,600, 46,440 and 50,040 bed volumes (BV) for HFO-201, HZO-201 and La-201, respectively. Further investigations using dissolved organic matter (DOM) fractionation, fluorescence excitation-emission matrix imaging, and molecular size screening identified small organic acids as key contributors to negatively influence efficiency and material reusability. While calcium and fluoride accumulation significantly altered the crystal structure of La-201 post-regeneration. Statistical analysis, including Pearson correlation and principal component analysis, confirmed and highlighted the significant negative impacts of calcium, fluoride, and dissolved organic matters (DOMs) on long-term phosphorus removal. Economic analysis estimated a competitive treatment cost of 0.70–0.80 USD per kilogram of phosphorus removed, while the life cycle assessment identified major environmental impacts from electricity and NaOH usage during material production, implementation, and regeneration.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"11 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144201539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Constructing porous CoFe2O4-Co3Fe7@C nanoflakes with tunable Co3Fe7 ratio for wideband microwave absorption at thin matching thickness","authors":"Boyuan Cao ,&nbsp;Yonggang Fu ,&nbsp;Diancheng Chen ,&nbsp;Xiangyu Wang ,&nbsp;Hongsong Zhu ,&nbsp;Tong Liu","doi":"10.1016/j.cej.2025.164379","DOIUrl":"10.1016/j.cej.2025.164379","url":null,"abstract":"<div><div>The flake-like magnetic materials with intrinsic anisotropy show promise for electromagnetic absorption, however, their absorption performance remains challenged by impedance mismatch and high matching thickness caused by a lack of reasonable composition and structure design. This work synthesized the novel porous CoFe₂O₄-Co₃Fe₇@C nanoflakes (NFs) by the hydrothermal method and hydrogen reduction. The CoFe₂O₄@C composite with a carbon-coated core-shell structure was synthesized via a dopamine-mediated approach and high-temperature calcination, followed by precisely controlled hydrogen reduction at varying temperatures to fabricate porous CoFe₂O₄-Co₃Fe₇@C NFs with tunable Co₃Fe₇ phase content. Notably, samples reduced at 300 °C achieved minimum reflection loss (RL_min) values of −119.7 dB, with thin matching thicknesses of 1.8 mm. Meanwhile, it exhibited maximum effective absorption bandwidths (EAB) of 9.2 GHz, significantly superior to most CoFe-based absorbers. The distinctive flake-like morphology and porous structures, coupled with abundant heterogeneous interfaces brought by the presence of CoFe₂O₄ and Co₃Fe₇ phase facilitate multiple polarization mechanisms, enhancing dielectric loss, which, together with well-matched magnetic losses enhanced by the Co₃Fe₇ phase, significantly augments the absorption performance. This study highlights the potential of CoFe₂O₄-Co₃Fe₇@C NFs as promising candidates for high-efficiency microwave absorbers and proposes novel design strategies for developing broadband microwave absorbers with thin matching thickness.</div></div>","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"517 ","pages":"Article 164379"},"PeriodicalIF":13.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144201823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CFD-PBM coupled study of antiphase alternating pulse technology for enhanced performance in silane fluidized bed reactors","authors":"Junhao Hao ,&nbsp;Lingjie Zhang ,&nbsp;Feng Wu ,&nbsp;Peng He ,&nbsp;Zongliang Fan","doi":"10.1016/j.cej.2025.164326","DOIUrl":"10.1016/j.cej.2025.164326","url":null,"abstract":"<div><div>Silane fluidized beds with conventional intake (CIT) demonstrate non-uniform gas–solid fluidization and slow particle growth rates. To overcome these limitations, pulsed intake (PIT) and antiphase alternating pulsed intake (AAPIT) were introduced in this study, and the mechanism of influence of intake types on gas–solid flow field and particle growth characteristics was analyzed by CFD-PBM model. The results show that both PIT and AAPIT have the ability to regulate the gas–solid phase slip velocity and inhibit non-uniform fluidization. However, AAPIT shows a better synergistic optimization effect, which further promotes the mixing effect between gas and solid. Furthermore, AAPIT achieves minimized bubble size and maximized bubble population, reducing the average bubble rise velocity by 17.8 % and 11.4 % compared to CIT and PIT, respectively. More importantly, among the three intake types, AAPIT demonstrates the highest reaction rate. Compared with CIT, the particle growth rates of PIT and AAPIT are increased by 3.12 % and 4.15 %, respectively. Finally, this study investigates the influence of alternating pulse region quantity on fluidized bed reactor performance. The results show that under the current operating conditions, the double-region antiphase alternating pulsed intake type (D-AAPIT) is the best choice to improve the non-uniformity of gas–solid flow and increase the particle growth rate.</div></div>","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"517 ","pages":"Article 164326"},"PeriodicalIF":13.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green remediation, mechanisms, and pathways of synthetic phenolic antioxidants by Fe-based antioxidant combined ball milling","authors":"Fei Lin, Honglei Ren, Fengtao Sun, Xiaoxue Pan, Xuesheng Zhang","doi":"10.1016/j.cej.2025.164385","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164385","url":null,"abstract":"Organic synthetic phenolic antioxidants (SPAs) and inorganic Fe-based antioxidants are widely used in daily life to prevent or delay oxidation and prolong storage and use. However, the ubiquitous occurrence of SPAs and the unreasonable disposal of Fe-based antioxidants (typically throwing them away) cause environmental issues and waste Fe resources. In this study, 16 solid SPAs and one important SPA intermediate were selected as target pollutants and destroyed via the ball milling Fe-based antioxidants collected from food bags packaged under a vacuum. Typical influencing factors, such as the co-grinder type, content, and grinding velocity, significantly affected the destruction efficiencies of the substrate (4-<em>tert</em>-octylphenol, 4-<em>t</em>OP, a representative commonly used SPA). Under optimal conditions, 0.1 g of 17 SPAs achieved high removal rates (35 %–97 %), with the highest first-order reaction rate constant (<em>k</em>) for propyl gallate (PG) being 1.00 h⁻¹, and the lowest <em>k</em> value for 2,6-di-<em>tert</em>-butyl-4-methylphenol (BHT) being 0.09 h⁻¹. Experimental and characterization (X-ray diffraction, Fourier transform-infrared spectroscopy, and X-ray photoelectron spectroscopy) observations showed that the reduction of Fe⁰, the oxidation of •OH, the reduction and oxidation of Fe(II) and Fe(III), oxygen vacancies, and mechanical forces exerted during ball-milling contributed to SPA destruction. Among these, the first two were the main mechanisms; however, the mechanical forces could not be ignored. Ten intermediates generated by 4-<em>t</em>OP during Fe-based ball milling were identified based on mass spectrometric results. Three pathways involved were hydroxylation, dealkylation, and polymer formation, and hydroxylation products were more abundant than others. According to ECOSAR and T.E.S.T program analyses, the ecotoxicity of most of the obtained intermediates was reduced. These findings reveal that Fe-based ball-milling technology can treat solid SPA pollution and achieve double-win performance.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"1 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144201534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wavelength-selective synaptic devices based on Graphdiyne/WSe2 for multi-color image recognition and neuromorphic computing","authors":"Hongyu Tang, Weiqi Shi, Wanlin Jiang, Gaoyuan Wang, Mengyuan Tang, Zihao Cai, Ruiteng Li, Shuai Wu, Guoqi Zhang, Jian Li","doi":"10.1016/j.cej.2025.164215","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164215","url":null,"abstract":"Graphdiyne (GDY)/two-dimensional materials (2DMs) heterostructures present unique opportunities for advanced optoelectronic and neuromorphic devices because of their exceptional electrical, optical, and structural properties. However, the traditional methods for construction of GDY/2DMs heterostructures usually lead to inferior interfaces, which seriously affects the charge separation and transport. Herein, an <em>in situ</em> approach for growing GDY nanowalls (NWs) on WSe₂ is employed in this work. The as-prepared GDY NWs/WSe₂ heterostructure exhibits self-powered broadband photodetection across 405–980 nm with a high responsivity of 2176 A/W and detectivity of 3.6 × 10¹² Jones at 532 nm under 0.02 mW/cm² illumination, significantly outperforming previously reported GDY-based devices. The efficient charge separation and strong photocarrier trapping in the GDY NWs/WSe₂ heterostructure result in pronounced short-term and long-term synaptic plasticity. The nonlinear, wavelength-dependent reservoir state separation enables clear distinction of multiple pulse sequences, which shows great potential for logic processing. The successfully resolved red, green, and violet patterns, and one-shot color image recognition of a 5-letter image highlight transformative potential of GDY NWs/WSe₂ device for future adaptive imaging and neuromorphic computing technologies.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"61 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144192803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Membrane structure-directed selective escherichia coli inactivation enabled by a Mannich-synthesized benzoxazine covalent organic polymer","authors":"Qi Yue ,&nbsp;Xinying Wang ,&nbsp;Yijun Liu ,&nbsp;Dandan Xu ,&nbsp;Yingying Ma ,&nbsp;Juan Wang ,&nbsp;Weiwei Bian ,&nbsp;Baolong Zhou","doi":"10.1016/j.cej.2025.164311","DOIUrl":"10.1016/j.cej.2025.164311","url":null,"abstract":"<div><div>As a ubiquitous pathogen in soil and aquatic environments, Escherichia coli (E. coli) poses significant public health risks due to its multidrug resistance (MDR) mechanisms. The inherent structural complexity of Gram-negative (G-) bacteria, particularly their lipopolysaccharide outer membrane (OM) and porin barriers, confers strong resistance to conventional antibiotics and phototherapeutic agents. This study introduces a porphyrin-integrated covalent organic polymer (M−P−COP) that achieves structure-selective inactivation of <em>E. coli</em> by exploiting the distinct architectural vulnerability of Gram-negative (G-) bacterial outer membranes. Through precise physicochemical matching with the lipopolysaccharide-porin complex of <em>E. coli</em>, M−P−COP enables light-activated, species-specific bactericidal activity eliminating almost 100 % of E. coli at ultra-low doses while sparing Gram-positive (G + ) bacteria and environmental microbiota. M−P−COP was synthesized via a one-pot Mannich reaction using tetra-aminoporphyrin (TAPP), hydroquinone (HQ), and paraformaldehyde as building units, forming a stable benzoxazine-linked backbone. The rigid skeletal structure not only ensures exceptional photostability and augmented photosensitivity but also enables specific membrane recognition capacity on G- bacteria. Experimental results demonstrate that M−P−COP selectively inactivates E. coli under light excitation, synergistically disrupting both its outer membrane and intracellular components by generating reactive oxygen species (ROS). Notably, M−P−COP demonstrates exceptional selective bactericidal activity, achieving 99.94 % bactericidal efficacy against E. coli at 100 μg/mL, while exhibiting negligible antimicrobial activity (5.32 %) against Staphylococcus aureus under identical conditions. This breakthrough addresses the inefficiency of traditional phototherapeutic agents against Gram-negative bacteria and mitigates the disruption of microbial communities caused by broad-spectrum antibiotics. Consequently, our study presents an innovative strategy for the precise removal of specific pathogens in complex environments.</div></div>","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"517 ","pages":"Article 164311"},"PeriodicalIF":13.3,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144192804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regulating positively charged MOF-303 membranes for enhanced ion selectivity","authors":"Huitong Li ,&nbsp;Peixian Su ,&nbsp;Haoran Fan ,&nbsp;Jiachen Liu ,&nbsp;Boyu Xin ,&nbsp;Tongdan Chen ,&nbsp;Gaofeng Zhong ,&nbsp;Jingle Xie ,&nbsp;Jiang Li ,&nbsp;Juanli Deng ,&nbsp;Zhaohui Zhou","doi":"10.1016/j.cej.2025.164373","DOIUrl":"10.1016/j.cej.2025.164373","url":null,"abstract":"<div><div>Replicating the biological nanopore channel with regulated transport behavior is the ultimate goal for artificial ion channels, which is primarily attributed to the exquisite charged residues inside the sub-nanoscale pores. However, there remains a deficiency in effective strategies and an in-depth understanding of the correlation regarding how surface charge in the channel affects ion transport activities. Herein, inspired by the charge-based separation existing in nature, we propose a charge-modified strategy by anchoring the cations at charge-lock sites in the channel wall. In this work, we employ water-stable MOF-303, which contains the pyrazole ligand with double N-based sites as the charge-lock sites for anchoring Fe³⁺. The channel anchored with Fe³⁺ exhibits a high positive charge, thereby strongly repulsing the high charge valence of Mg²⁺. The strongly positively charged membrane exhibits an outstanding selectivity for monovalent and divalent cations (i.e., ~110.2 for K⁺/Mg²⁺). DFT theoretical calculations show that, compared with original MOF-303, the difference in entry energy (<em>∆E</em>) between monovalent ions and divalent ions through strongly positively charged Fe³⁺@MOF-303 is larger. It is expected that this study will provide a novel method for the creation of charge-tunable MOF membranes with superior performance for separation fields.</div></div>","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"517 ","pages":"Article 164373"},"PeriodicalIF":13.3,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144192909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sonoamplified catalytic activation of potassium peroxydisulfate on the Ti2AlC MAX phase for the removal of pharmaceutical contaminants","authors":"Monireh Alimohamadi, Alireza Khataee, Samira Arefi-Oskoui, Yasin Orooji","doi":"10.1016/j.cej.2025.164358","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164358","url":null,"abstract":"Herein, the activation of potassium peroxydisulfate (PDS) under ultrasound (US) irradiation using the Ti₂AlC MAX phase synthesized by the semi-reactive sintering method aimed to treat the water polluted with pharmaceutical contaminants such as cefixime. Ti₂AlC MAX phase (0.5 g/L) exhibited appropriate potential to active PDS (0.7 mmol/L) under the US, resulting in a substantial degradation of several pharmaceutical contaminants containing cefixime (100 %), oxytetracycline (100 %), tilmicosin (100 %), phenazopyridine (100 %), and rifampin (97 %) within 80 min of reaction. Kinetic investigation verified that the degradation reactions followed pseudo-first-order kinetics. The effect of scavengers confirmed that electrons and singlet oxygen (¹<span><span style=\"\"><math><msub is=\"true\"><mi is=\"true\">O</mi><mn is=\"true\">2</mn></msub></math></span><span style=\"font-size: 90%; display: inline-block;\" tabindex=\"0\"></span><script type=\"math/mml\"><math><msub is=\"true\"><mi is=\"true\">O</mi><mn is=\"true\">2</mn></msub></math></script></span>) were the most active species throughout the degradation. Moreover, total organic carbon (TOC) was performed to study the mineralization of cefixime during the sonocatalytic process. Additionally, a possible procedure for cefixime degradation was recommended based on recognized by-products with liquid chromatography-mass spectroscopy (LC-MS). The possible harmful effects of cefixime degradation intermediate in water were evaluated using the Ecological Structure Activity Relationships (ECOSAR) sytem. The acquired results demonstrated the competence of the triple Ti₂AlC/PDS/US process as a capable novel procedure for the treatment of pharmaceutical-polluted water and wastewater resources.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"45 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144192802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MBene nanozyme-driven dopamine flexible sensors: From technological development to mechanistic exploration of stress-related disorders","authors":"Guangna Ji, Xiaoyu Qu, Jingyi Yang, Mengmeng Chen, Jiangshan Zhang, Haoran Wang, Banglei Zhu, Yu Wang, Zhongze Fang, Zhixian Gao","doi":"10.1016/j.cej.2025.164367","DOIUrl":"https://doi.org/10.1016/j.cej.2025.164367","url":null,"abstract":"The measurement of fluctuations in the kinetic levels of the dopamine signal is important for the detection of the body's endocrine response to stressful stimuli. However, traditional dopamine measurements are prone to damage, while the stability of existing wearable sensors needs to be improved. To address this, a non-invasive, self-cleaning, and stretchable and flexible electrochemical sensor patch (i.e., sCMZ sensor) has been presented for a non-invasive, rapid, simple, and highly sensitive long-term and stable monitoring of dopamine levels in biofluids. Subsequently, an innovative “zipper” synthesis strategy was employed to successfully prepare a new generation of highly selective and environmentally friendly MBene-based heterojunction-like nanozymes (MBAzy), they thereby enabled a highly sensitive in situ detection in the detection range of 512 pM – 125 mM (LOD = 4.44 pM). Innovative combination of bionic snake-shaped flexible electrodes and self-cleaning antibacterial electrodes for long-term monitoring of the human body's condition. Unlike previous studies, this study reveals the circadian rhythm of dopamine in human urine and its changes under different stress states, clarifies the significant difference between long-term and short-term stress on neurotransmitter levels, and explores the weak correlation between stress and fatigue, which provides new perspectives for the study of psychophysiology and related diseases.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"25 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144192805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hemicellulose phase synergistically boosting the tribopositivity of cellulose nanopaper: Effectiveness and mechanism","authors":"Yan Jiang ,&nbsp;Mengmeng Yang ,&nbsp;Liyun Cheng ,&nbsp;Lu Xiao ,&nbsp;Xinyi Wang ,&nbsp;Ruixuan Liu ,&nbsp;Yiyan Wu ,&nbsp;Shuangfei Wang ,&nbsp;Xiuyu Liu","doi":"10.1016/j.cej.2025.164369","DOIUrl":"10.1016/j.cej.2025.164369","url":null,"abstract":"<div><div>The integration of lignocellulosic nanomaterials into energy management applications possesses enormous technical appeals catering to high-tech and low-carbon era. Nature has designed hierarchical and heterogeneous lignocellulose microstructure, which can be harnessed for desirable dielectric behaviors towards specific applications. Here, we make the first attempt to boost the tribopositivity of 2D self-assembly (i.e., nanopaper) of cellulose nanofibrils by leveraging the inherent functionality of their hemicellulose phase. In comparison to conventional nanopapers assembled from TEMPO-oxidized/enzymatic cellulose nanofibrils with significantly lower hemicellulose content (4.6/12.2 vs. 20.3 wt%), the as-prepared hemicellulose-rich nanopaper exhibits ~2-fold higher electron-donating capability, which in turn generates ~1.5-fold higher triboelectric nanogenerator (TENG) output when paired with given tribonegative materials. We provide multiscale insights into the boosted tribopositivity of nanopaper by hemicellulose phase arising from its unique molecular structure and micro-distribution pattern. Furthermore, amorphous hemicellulose phase can be readily molecularly designed, e.g., aminosilanization, which further enhances the tribopositivity of nanopaper towards self-powered applications requiring high energy density. Besides, the hemicellulose-rich nanopaper is highly writable, mechanically strong, and optically transparent, serving as a desired structural material with favorable programmability for various TENG-based sensing, encryption and wearable devices.</div></div>","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"517 ","pages":"Article 164369"},"PeriodicalIF":13.3,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144192908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}