Chemical Engineering Journal最新文献

{"title":"Isolated PEDOT-based organic-ionic-hydrogel as the sensitive portable electroanalytical platform for paracetamol determination","authors":"Wang Sun, Guorong Sun, Junyan Liu, Xiang Huang, Shun Lu, Yang Wang","doi":"10.1016/j.cej.2025.162023","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162023","url":null,"abstract":"The use of ionic liquids, protonic acids or organic reagents to remove PSS from PEDOT:PSS (poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)) to improve the conductivity is an efficient strategy [<span><span>1</span></span>]. Meanwhile, the merits of low cost/toxicity, easy operation and environmental friendliness of ethylene glycol (EG) make it the primary candidate for separating PEDOT:PSS [<span><span>2</span></span>]. Herein, the PEDOT:PSS was treated with EG to obtain partially isolated PEDOT, referred to as Pi-PP, then the Pi-PP was effectively integrated with Ca²⁺ and chitosan-acrylamide hydrogel to develop composite hydrogels (CS-AM(Ca²⁺)-EG@Pi-PP). Subsequently, an electrochemical sensor (CS-AM(Ca²⁺)-EG@Pi-PP/SPE) was developed using the prepared hydrogels in conjunction with a screen-printed electrode (SPE). Using paracetamol as the target analyte, this sensor demonstrated an ultra-sensitive linear detection range (0.01–5000 μmol/L) and a low detection limit of 0.003 μmol/L. The excellent electroanalytical performance may contribute to that i) EG facilitates the removal of some insulating PSS via shielding effects, exposing more conductive components (Pi-PP); ii) the intrinsic ionic conductivity of Ca²⁺ also enhances the current response of PARA, and iii) the dense network channels of hydrogel are conducive to the transmission of PARA. In short, the electrochemical origin is: PARA undergoes a redox reaction on the electrode surface to generate the current signal, and then this sensor detects the analyte via measuring the change of the current. This study presents valuable insights for creating an efficient, and portable electrochemical sensing platform for environment and human health.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"19 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143733896","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":"Reducing lignin condensation and enhancing enzymatic hydrolysis of wheat straw by low-concentration p-toluenesulfonic acid pretreatment assisted with polyethylene glycol","authors":"Junjie Hao, Haifeng Chen, Chaoqing Zhang, Hailong Li, Xuefang Chen, Zhen Xiong, Can Wang, Haijun Guo, Hairong Zhang, Lian Xiong, Sansan Yu, Xinde Chen","doi":"10.1016/j.cej.2025.162012","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162012","url":null,"abstract":"Condensed lignin produced during dilute acid pretreatment is the main cause of low cellulose conversion and high enzyme dosage. In this study, polyethylene glycol (PEG) assisted low-concentration <em>p</em>-toluenesulfonic acid (<em>p</em>-TsOH) pretreatment for reducing lignin condensation and enhancing enzymatic hydrolysis of wheat straw was investigated. In addition, the structure of lignin in wheat straw before and after pretreatment was systematically characterized. The results indicated that the cellulose conversion of pretreated wheat straw was significantly improved. Under the optimized conditions (0.5 % PEG6000 and 1 % <em>p</em>-TsOH), the cellulose conversion of pretreated wheat straw increased by 41.03 % and the enzyme loading decreased by 70 %. The cellulose conversion of pretreated wheat straw reached 95.15 % when the enzyme loading was only 7.5 mg/g (3.39 FPU/g). The lignin characterization revealed that the β-O-4 structure in lignin was protected by the PEG, which was incorporated into the β-O-4 structure and formed etherified lignin with many hydroxyl tails. Thus, the increase in cellulose conversion is attributed to the fact that the lignin condensation was inhibited by PEG, which reduced the non-productive adsorption of enzyme. <em>p</em>-TsOH and PEG showed significant synergistic effects for the improvement of cellulose conversion. In summary, PEG assisted low-concentration <em>p</em>-TsOH pretreatment can effectively prevent lignin condensation and improve enzymatic hydrolysis efficiency.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"14 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734130","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":"Tailoring carboxyl-rich micro-environment of metal-organic framework via mixed linkers strategy for enhanced adsorption of lithium ion","authors":"Yuxuan Wang, Xueyan Zhang, Xudong Zhao, Yaming Liu, Dong Wu, Hongliang Huang","doi":"10.1016/j.cej.2025.162116","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162116","url":null,"abstract":"Lithium ion (Li⁺) uptake from salt lakes is highly significant while still faces challenges. In this work, a new highly stable metal–organic framework (MOF) with mixed linkers was rationally designed for Li⁺ capture. To construct carboxyl-rich active traps, an additional functional linker of benzenehexacarboxylic acid (named H₄ for which contains four free carboxyl groups after coordination) was in-situ introduced into MIL-121-H₂ framework, which owns inherent benzenetetracarboxylic acid (H₂) linker. Dense carboxyl groups in the local region surround to form a distinct 4-oxygen adsorption trap, endowing the prepared MIL-121-H₂/H₄ with stronger affinity toward Li⁺ ion than the inherent 3-oxygen trap of MIL-121-H₂. On this basis, MIL-121-H₂/H₄ exhibits short adsorption equilibrium time of 45/ 60 min (<em>C</em>₀, 100/1000 mg L^-1) and high capacity of 35.6 mg g⁻¹. Neutral pH was found to facilitate the adsorption and selective adsorption especially for K⁺ and Ca²⁺ ions was observed. Besides, even after four adsorption–desorption cycles, MIL-121-H₂/H₄ still remained 93.5 % of the adsorption amount of the original sample. Thus, our work proposes a new and feasible strategy for the design of highly effective MOF-based adsorbents.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"34 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734169","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":"Steering yeast-bacteria synergy by biochar to achieve enhanced endogenous ethanol-driven chain elongation","authors":"Xiang Li, Yonghong Ma, Zizhen Ding, Xia Gu, Xu Ma, Xianbao Xu, Hussein E. Al-Hazmi, Anna Duber, Gang Xue, Jiajie Xu, Xu Duan, Shenbin Cao, Piotr Oleskowicz-Popiel, Jacek Makinia","doi":"10.1016/j.cej.2025.162013","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162013","url":null,"abstract":"The recovery of medium-chain carboxylic acids (MCCA) from waste streams through chain elongation (CE) aligns with a circular economy concept. However, the need for electron donor (ethanol) supplements and the challenges of enriching chain-elongating bacteria have limited its application. This study adopted biochar to steer a novel yeast fungi-bacteria mixed microbiome to drive CE during food waste fermentation. The effects of hydrochar and pyrochar at dosages ranging from 5 g/L to 40 g/L on the CE process were compared. The highest MCCA concentrations without electron donor addition peaked at 21.46 ± 0.97 g chemical oxygen demand (COD)/L and 22.51 ± 1.53 g COD/L using 5 g/L of hydrochar and pyrochar. The Pearson correlation coefficient indicated strong linear relationships (R²: 0.95–0.99) between MCCA and ethanol, achieving an ethanol-driven CE process. Fungal yeast belonging to <em>Wickerhamomyce</em> and <em>Saccharomycopsis</em> were enriched using hydrochar (34.78 %) and pyrochar (41.42 %), contributing to endogenous ethanol generation. Key chain-elongating bacteria, including <em>Clostridium_sensu_stricto_12</em> and <em>Caproiciproducens</em>, were enriched using hydrochar (30.59 %) and pyrochar (8.16 %). Metagenomic analysis revealed that hydrochar and pyrochar addition both up-regulated the genes involved in the CE pathway. In addition, the network topological metrics and mantel test results confirmed that more stable interactions among the microbiome were established under the hydrochar addition compared to pyrochar. Structural integrity analysis suggested an essential role of humic acid in hydrochar on CE. Finally, the roles of functional groups O-C=O in hydrochar and C=C in pyrochar involved in the yeast fungi-bacteria microbiome were proposed. This study provides new insights into MCCA recovery from waste streams.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"33 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723745","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":"Phase control of MoWS2 nanostructures via oxalic acid-assisted electron injection: From molybdenum disulfide to tungsten disulfide","authors":"Xiao-Yu Chen, Yuan Zhao, Zi-Han Liu, Yi-Tong Pang, Di-Gen Wei, Jing-Yi Wangchen, Cheng-Bao Yao","doi":"10.1016/j.cej.2025.162031","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162031","url":null,"abstract":"Metallic-phase molybdenum disulfide (1T-MoS₂) and tungsten disulfide (1T-WS₂) have attracted great attention due to their excellent performance in the field of electrochemical hydrogen evolution catalysis. Recent studies have demonstrated that reducing the potential barrier of lattice distortion and injecting electrons into materials are the keys to synthesizing 1T phase transition metal dichalcogenides (1T-TMDs) materials with long-term stability. Here, a novel synthesis strategy for 1T-TMDs was proposed. With the assistance of oxalic acid, the continuous synthesis from semiconductor-phase (2H) MoS₂ to 1T-MoWS₂ and then to 2H-WS₂ was achieved by changing the proportion of precursors. The 1T-phase of MoWS₂ has a proportion of 74.36 %. Phase transformation mechanism analysis shows that the construction of the ternary structure reduces the lattice distortion barrier, and oxalic acid directly injects electrons into the ternary structure, providing a driving force for the formation and stabilization of the 1T-phase. Compared with the 2H-phase, the 1T-phase MoWS₂ has significantly optimized electrochemical catalytic performance. Density functional calculations and transient absorption results revealed that the origin of the efficient catalytic performance of 1T-phase MoWS₂, with special electronic structure being the main reason. This study provides a new strategy for the structural design and synthesis of high-efficiency 1T phase catalysts","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"292 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723748","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":"High-Performance Al2O3/Polyarylate nanocomposite paper with enhanced Insulation, thermal Conductivity, and environmental stability for Advanced electrical applications","authors":"Liang Cheng, Hua Ma, Xueyang Liu, Qingquan Tang, Kuang Yang, Yuan Zhang, Hanwen Zhang, Hua Wang, Siwei Xiong","doi":"10.1016/j.cej.2025.162000","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162000","url":null,"abstract":"Polymer-based insulating paper is crucial for electrical equipment like transformers, high-power motors, and capacitors. However, as electronics evolve, current insulation papers fail to meet the demands for high insulation, thermal conductivity, and stability. This study introduces a novel nanocomposite paper with superior electrical strength, thermal conductivity, and weather resistance, made from self-produced polyarylate (PAR) nanofibers and Al₂O₃ nanoparticles. The high aspect ratio PAR nanofibers form a network that effectively captures Al₂O₃ nanoparticles, and thermoplastic properties of PAR enable thermal welding at the interface, minimizing defects. Experimental results demonstrate that when Al₂O₃ nanoparticles aggregate to a specific size and are fully encapsulated by PAR nanofibers (Al₂O₃ = 30 wt%), the resulting Al₂O₃/PAR nanocomposite paper exhibits superior insulation and thermal conductivity characteristics. It achieves electrical breakdown strength and thermal conductivity of 115.4 kV/mm and 2.726 W/(m·K), improving by 356 % and 2599 % over commercial aramid paper. Additionally, following 24 h of exposure to elevated temperatures (200°C) and ultraviolet (UV) treatment, the breakdown strength of commercial aramid paper decreased to 10.3 kV/mm and 9.3 kV/mm, respectively. In contrast, the Al₂O₃/PAR nanocomposite paper-maintained breakdown strengths of 101.6 kV/mm and 94.7 kV/mm, underscoring its excellent resistance to environmental degradation.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"1 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734135","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":"Chromophoric molecular ion-receptor embedded organic-inorganic hybrid monolith as the solid-state optical chemosensor for the selective detection/recovery of ultra-trace uranyl ions","authors":"Anju P. Veedu, Balasundar Kannan, Akhila Maheswari Mohan, Prabhakaran Deivasigamani","doi":"10.1016/j.cej.2025.162110","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162110","url":null,"abstract":"The article reports an innovative renewable receptor-imbued organic–inorganic hybrid material as a solid-state chromatic sensor for screening and capturing ultra-trace UO₂²⁺ from environmental samples. The sensor fabrication follows a simple physical immobilization of spirocyclic azomethine-derived ion-receptor (DHDTBX) molecules on tailor-made meso-/macro-pore channels of poly(TMSPMA-<em>co</em>-EGDMA) monolith template. The surface profile and morphological characteristics of the organic–inorganic hybrid monoliths of poly(TMSPMA-<em>co</em>-EGDMA) and DHDTBX@poly(TMSPMA-<em>co</em>-EGDMA) materials are characterized by scanning/transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffractometry, infrared spectroscopy, diffuse reflectance spectroscopy, thermogravimetry, and surface area/pore volume analysis. The monolithic template’s voluminous surface area and spacious porosity enhance receptor integration efficiency with constrained spatial orientation, offering exclusive UO₂²⁺ selectivity and maximizing the response kinetics (≤60 s). The optimization of physicochemical parameters reveals that the sensor exhibits maximum response for UO₂²⁺ in the pH range of 6.0–8.0 with 0.125mmol g⁻¹ of receptor loading and a sensor dosage of 4.0–5.0 mg. The sensor proffers a target-specific color transition from initial ivory to dark beige for UO₂²⁺, with signal linearity in the UO₂²⁺ concentration range of 1.0–150 μg L^-1, with a detection and quantification limit of 0.15 and 0.53 μg L^-1 for UO₂²⁺, respectively. The sensor is reusable for upto nine cycles with excellent data reproducibility/reliability and structural stability. The real-time practical utility of the sensor material has been tested with various water samples, revealing a recovery of ≥98.26 % and an RSD of ≤2.1 %. The proposed solid-state optical sensor paves the way for a simple and economically feasible approach for UO₂²⁺ sensing and preconcentration.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"183 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734167","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":"Cation-induced phase transformation in PVDF for efficient energy harvesting","authors":"Dinku Hazarika, Jiaqi Lu, Jiafeng Ni, Chuanrui Chen, Muhammad Naeem Shah, Liangquan Xu, Jianhui Wu, Kaihang Zhang, Jie Li, Xinyu Cai, Rui Wan, Hao Jin, Shurong Dong, Yuhui Huang, Qilong Zhang, Yongjun Wu, Jikui Luo","doi":"10.1016/j.cej.2025.162038","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162038","url":null,"abstract":"Piezoelectric poly (vinylidene fluoride) (PVDF) polymer and their nanocomposites have attracted significant interest for self-powered flexible electronics. Despite this, achieving PVDF with a distinct desirable phase remains a challenge. This study investigates the effects of cation-based halides doping (XCl₂ with X = Mg, Ca, Sr) on PVDF structure and properties with an electric field applied during heating. Molecular dynamics simulations and experimental investigations showed that ionic interactions with different cations induce distinct crystalline phases in PVDF. Mg²⁺ interactions primarily stabilize the α-phase, characterized by a higher gauche content, due to its smaller ionic size. In contrast, Ca²⁺, with a moderate ionic size, promotes the highly ordered β-phase by strongly aligning trans conformations. This effect is evident as the β-phase content increases from 67.36 % to 92.78 % upon incorporating 1.0 wt% CaCl₂. On the other hand, Sr²⁺, the largest ion among the three, induces the intermediate γ-phase, driven by stronger but more disruptive ionic interactions. We utilized PVDF-CaCl₂ films to fabricate a hybrid piezoelectric-triboelectric nanogenerator (PTNG). The CaCl₂ doping enhanced the surface charge density and polarization via increased β-phase content and electron affinity. The PVDF-CaCl₂/PA6 PTNG outperformed the control PVDF/PA6 nanogenerator, achieving a peak output voltage of ∼1553 V, a short-circuit current density of ∼253 mA/m², and a transferred charge density of ∼291.5 μC/m² at 1 Hz—over three times those of the control device. Furthermore, the PTNG device, coupled with an electronic switch, successfully demonstrated its functionality as a capacitive humidity sensor. These results highlight the importance of the size of cations in phase modulation of PVDF and demonstrate an efficient strategy for phase-specific PVDF applications in energy harvesting and sensor technologies.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"34 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723746","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":"Electrospun sodium Titanate-MXene/Carbon nanofibers as Binder-Free electrode for enhanced hybrid capacitive deionization","authors":"Xin Li, Xiang Fu, Youfang Zhang, Qunchao Zhang, Zhaoyang Wei, Ke Wang, Robert K.Y. Li, Dean Shi, Jun Jin","doi":"10.1016/j.cej.2025.162040","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162040","url":null,"abstract":"Sodium titanate (Na₂Ti₃O₇, NTO) is a promising electrode material for sodium storage in capacitive deionization (CDI) applications due to its open, tunnel-like layered structure, which facilitates the rapid transport and storage of Na⁺ ions. However, its poor electronic conductivity and significant volume changes during the Na⁺ insertion/extraction process limit its practical application. Constructing an NTO composite with high electronic conductivity is an effective strategy to address these issues. In this work, flexible and self-supporting NTO-MXene/CNF films were prepared using electrospinning, carbonization, and hydrothermal methods. In these films, MXene is either embedded within the CNFs or overlapped on their surface, forming a conductive network that significantly reduces the resistance of the composite film to less than 3.6 Ω. The NTO, derived from part of the MXene, grows in situ on the surface of the MXene, effectively addressing the issues of NTO agglomeration and poor conductivity while also enhancing the hydrophilicity of the composite film. As a result, the NTO-MXene/CNF films exhibit self-supporting properties and excellent CDI performance. The optimized NTO-MXene/CNF film demonstrates an impressive desalination capacity of 49.3 mg g⁻¹ and a rapid desalination rate of 9.9 mg g⁻¹ min⁻¹ under a constant voltage mode of 1.2 V and an initial conductivity of 500 μS cm⁻¹ in saline solution, along with good cycling stability. The insights gained from this work will provide valuable guidance for the development of novel flexible composite films with high desalination performance for applications in the CDI field.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"10 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723747","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":"Reprogrammable shape morphing hydrogel modulated by synergistic photochromism and photoactuation","authors":"Xinyang Peng, Hui Li, Jie Xu, Changming Lan, Junqiu Liu, Baiheng Wu","doi":"10.1016/j.cej.2025.162103","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162103","url":null,"abstract":"Hydrogels with reprogrammable shape morphing have been widely embraced by the fields of smart robots, sensors, wearable devices and biomedicines. Programming shape morphing without the application of external stress remains a significant challenge. In this study, we introduce photochromic cadmium sulfide quantum dots (CdS QDs) to develope hybrid hydrogels capable of undergoing reversible color change, serving as a differentiated photothermal antenna for reprogramming of complex deformation. Our strategy leverages the synergetic photochromic and photothermal effects, which are individually controlled by patterned UV irradiation and global vis-IR irradiation. This method demonstrates non-contact photo-responsive characteristics, real-time reconfigurability and on-demand reprogrammability, enabling shape morphing hydrogel to perform functions such as 3D/4D information encryption, object manipulation, and logic circuit control.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"27 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734131","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}