CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Hongwu Liao,Chong Wang,Jiaxian Zheng,Zhuo Chen,Yulin Zhou,Chengning Ye,Xiangfeng Lin,Meng An,Yusuke Yamauchi,Yusuke Asakura,Zhanhui Yuan
Photocatalytic depolymerization of lignin offers a sustainable approach to producing high-value-added aromatic compounds. Recently, carbon nitride has demonstrated notable selectivity for the C C bonds in lignin model compounds. However, limitations of pure carbon nitride include the low mobility of photogenerated electrons and the difficulty in precisely controlling the cleavage pathways and products of C C bonds. In this study, we constructed an S-Scheme heterojunction by in situ loading of Ce ions onto C 3 N 4 to form a CeO 2 /C 3 N 4 composite. This heterojunction achieves efficient lignin depolymerization under blue LED irradiation in an oxygen-rich environment. Comparative analysis indicated that the yield of primary products, benzaldehyde and phenyl formate, increased by 7.8-fold and 7.75-fold, respectively, compared with pure CeO 2 , and by 1.4 and 1.8 times relative to unmodified C 3 N 4 . After optimizing the reaction conditions, dealkalized lignin is applied to the system and successfully depolymerized. Comprehensive characterization and theoretical simulations verify the heterojunction's ability to enhance carrier separation and redox activity, with CeO 2 serving as an active dehydrogenation site that significantly boosts the depolymerization efficiency of lignin model compounds. This photocatalytic strategy presents a valuable step forward in lignin valorization and supports the sustainable utilization of biomass resources.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yichao Chen,Ruidong Ming,Jingyi Wang,Zhuohao Bao,Linxin Lu,Zhengliang Du,Yiheng Song,Xianze Yin,Xianjie Wen
Addressing industrial fluorine waste disposal while enhancing fluorinated triboelectric materials constitutes dual critical challenges. By compounding oxygen-free CaF 2 nanoparticles synthesized from solidified fluoride ions with PVDF, this study achieves simultaneous environmental remediation and triboelectric enhancement. The synergistic mechanisms include: (1) Intrinsic negative triboelectric polarity enhancement (work function increased from 4.97 to 5.31 eV); (2) Aggregated state modulation ( β -phase: 76.8 % to 90.8 %; crystallinity: 43.5 % to 48.9 %); (3) Interfacial polarization (>25 % dielectric constant increase at 1 kHz). The 20 wt% CaF 2 /PVDF composite film exhibits 128 V open-circuit voltage, 43 nC transferred charge, and 403.3 mW/m 2 power density - representing 2.79-fold enhancement over pure PVDF. The composite maintains >95 % output stability through 3000 bending cycles and functions effectively as wearable strain sensors for human motion monitoring. This integrated strategy establishes a sustainable paradigm merging waste valorization with high-performance triboelectric material design.
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CHEMISTRY
·
2024
·
IF 5.5
Dongxiao Wang,Zheng Lan,Yue Li,Ying Huang,Kun Yin,Lixia Yang,Liangjiu Bai,Donglei Wei,Huawei Yang,Hou Chen,Mingchuan Luo
Comprehensive Summary Photocatalytic aerobic oxidative desulfurization (PAODS) is a sustainable alternative technology to traditional, energy-intensive fuel desulfurization methods. Nonetheless, its advancement is hindered by the notable challenge of inadequate electron-hole separation efficiency within the existing catalytic systems. Herein, a Janus 2D/2D heterostructure composed of Co 3 O 4 and CoMoO 4 is reported for the PAODS of thiophenic sulfides. Through a combination of detailed experimental characterizations and density functional theory (DFT) calculations, we elucidate the formation of a type II p-n heterojunction in the catalyst, significantly enhancing electron-hole separation through electric field force and reducing the possibility of electron-hole recombination due to the spatial separation of redox centres. The photocatalyst exhibits exceptional activity and demonstrates an impressive performance of 10.4 mmol·g –1 ·h –1 in the oxidation of dibenzothiophene (DBT). Moreover, the photocatalyst demonstrates profound desulfurization capabilities in real diesel, reinforcing its promising prospects for industrial application. These discoveries provide invaluable insights, both scientifically and practically, towards the development of advanced photocatalysts for PAODS processes.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Yuhang Ren,Yu Tian,Yating Lu,Dongyu Nie,Huayi Zhu,Xia Yang
Malathion (MA) is a widely used organophosphorus pesticide globally. Developing efficient photocatalysts is crucial for eliminating MA pollution in water by photocatalytic technology. This study focuses on preparing a series of H-PDI supermolecule/NH 2 -MIL-101(Fe) (PM) materials by amidating NH 2 -MIL-101(Fe) with the more stable H-PDI supermolecule, forming a covalent O C–NH bond. Among these materials, 40 %PM (indicating a mass percentage content of 40 % H-PDI supermolecule in PM) exhibited the best performance for degradation of MA. Under simulated sunlight irradiation of a 10 mg·L 1 MA solution for 180 min, the reaction rate constants of 40 %PM were 5.95 times and 3.13 times higher than those of NH 2 -MIL-101(Fe) and H-PDI supermolecule, respectively. The enhanced performance is attributed to the formation of Z-scheme heterojunctions in the 40 %PM composite lead to fast separation of photogenerated e − and h + . Combining the results of HPLC-MS with Fukui Function, the HOMO, LUMO, and pathway of degradation of MA attracted by 1 O 2 , •OH, and h + were speculated. The pathway involves oxidation, demethylation, P-S bond breakage, decarboxylation, and final conversion to some inorganic molecules. The toxicity of the degradation byproducts were lower than that of MA estimated by Toxicity Estimation Software Tool.
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Ya Lu,Shengnan Li,Yuanyuan Ma,Fang Deng,Yiying Yue,Shaohua Jiang,Mingqiang Ye,Yihui Zhou,Huining Xiao,Jingquan Han
Hydrogel actuators show tremendous promise for applications in soft robots and artificial muscles. Nevertheless, developing a stretchable hydrogel actuator combining remote actuation and real-time signal feedback remains a challenge. Herein, a light-responsive hydrogel actuator with self-sensing function is fabricated by employing a localized immersion strategy to incorporate polyacrylamide (PAM) hydrogel network into semi-interpenetrating carbon nanotube/2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofiber/poly(N-isopropylacrylamide) (CNT/TOCN/PNIPAM) hydrogel. CNTs impart photothermal response and electrical conductivity to the hydrogels. TOCNs facilitate the dispersion of CNTs and improve the mechanical properties of the hydrogel. The introduction of PAM further reinforces the mechanical strength and promotes the formation of gradient structure, which can prevent interlayer separation during the actuating process. The optimized CNT/TOCN/PNIPAM-PAM hydrogel actuator with enhanced tensile strength (53.0 kPa), stretchability (131.1 %), conductivity (2.5 S m −1 ) and reversible near-infrared (NIR) light responsiveness (bending velocity 6.25° s −1 ) enables a variety of precise and remote light-responsive deformations. The conductive hydrogel-based strain sensor with high sensitivity (gauge factor, 3.6) can rapidly and accurately identify various human movements. Notably, the hydrogel can perceive its actions driven by NIR light through real-time resistance changes, realizing closed-loop monitoring and sensing feedback, which provided new insights for novel soft biomimetic actuating materials and integrated multi-functional devices.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Meng Liu,Wenzhuo Lv,Fan Zeng,Canhui Wang,Xin Guo,Bo Zhou,Yiqiang Wu
Overcoming the inherent activity–stability trade-off in photo-Fenton systems requires advanced material architectures that integrate multifunctional synergies. In this study, we developed a multifunctional hydrogel, termed PCCF, fabricated by confining Fe 3 O 4 @polydopamine (PDA) nanoparticles within a three-dimensional (3D) pullulan–nanocellulose matrix specifically tailored for efficient doxycycline (DOX) elimination. PCCF exhibited a hierarchically engineered structure based on three synergistic strategies: (1) a pullulan (Pu)–cellulose nanofibrils (CNF)@carbon dots (CD) co-network with a hierarchically porous architecture (surface area: 230.6 m 2 /g), enabling ultrahigh adsorption capacity (Q m = 272.9 mg/g); (2) PDA-mediated nanoparticle immobilization to achieve spatial uniformity and reduce catalyst leaching (< 5 ppb Fe after five cycles); and (3) an optically transparent and mechanically resilient hydrogel framework (94.2 % transmittance at 500 nm, tensile strength: 41.7 kPa, elongation at break: 84.5 %). These integrated features synergistically improved the photo-Fenton degradation rate constant of PCCF by 3.03-fold compared to Fe 3 O 4 nanoparticles, while maintaining 90.4 % catalytic efficiency after five cycles. This work establishes a Pu hydrogel-based structural paradigm that harmonizes catalytic activity with long-term stability, offering a versatile blueprint for high-performance environmental remediation systems.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Shujie Zhou,Ningning Song,Tianye Wang,Guangfeng Wu
Photocatalysis is limited by the high recombination rate of photogenerated e - and h + , but the piezoelectric effect can enhance the separation efficiency of charge carriers, so that the combining piezoelectric catalysis with photocatalysis is a highly promising approach for improving catalytic performance. In this study, aim to enhance piezo-photocatalytic performance, plasma treatment was applied to modify the surface of Bi 2 WO 6 to form oxygen vacancies . After plasma treatment, Bi 2 WO 6 exhibited a larger specific surface area, thinner thickness, narrower band gap, etc. These improvements have been confirmed to enhance the piezoelectric response of Bi 2 WO 6 , facilitate band bending and further improve the absorption of visible light , accelerate the separation of charge carriers, thus enhanced the piezo-photocatalytic activity. Consequently, utilization of plasma treatment had improved greatly the piezo-photocatalytic performance of Bi 2 WO 6 for the degradation of tetracycline hydrochloride . Impressively, plasma treatment promoted the generation of 1 O 2 during the piezo-photocatalytic reaction, emphasizing the advantages of utilizing plasma treatment for improving the performance of piezo-photocatalysts. This work highlights the use of plasma treatment to increase active sites and induce vacancy defects on the surface of catalysts, which exhibit excellent piezo-photocatalytic degradation performance and show great potential in the field of environmental remediation.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Rui-Dong Wang,Yi-Fei Zhang,Xiao-Long Han,Xiao-Yang Fan,Jun Tian,Yu-Kun Gao,Ting-Ting You,Peng-Gang Yin
This study explores an approach to incorporating polyrotaxane into solid polymer electrolytes (SPEs) through crosslinking with poly(ethylene glycol) (PEG). By leveraging the unique properties of polyrotaxane and the flexibility of PEG, we have developed SPEs with enhanced ionic conductivity, mechanical strength, and thermal stability. Our results indicate that the SPE film, containing equal weights of hydroxypropyl polyrotaxane (HyPR) and PEG with a molecular weight of 10000 Da, exhibits high thermal resistance above 150 °C, impressive flexibility with an elongation at break exceeding 550%, and an ionic conductivity of 2.715 × 10–5 S cm–1 at 30 °C.
✓ 已验证
产品关联
DOI
高影响因子
Energy Storage Materials
·
2025
·
IF 20.2
Rongfeng Yang,Fan Wang,Wan-er Cui,Wei Chen,Tianyu Lei,Dongjiang Chen,Dongxu Chen,Li Xia,Chi Zhang,Kaijun Cheng,Runyi Dai,Yichao Yan,Xiaobin Niu,Yin Hu
Lithium sulfur batteries are persistently investigated by the research community due to their high energy density property. However, in order to get such performance, based on the current pouch cell strategy, less electrolyte and more stacking electrodes need be applied, leading to the aggravated dendrite growth, dead lithium accumulation and electrolyte depletion. In this context, we report a regenerative redox mediator strategy, targeting the operation window of the lithium sulfur batteries. The redox mediator can spontaneously consume the dead lithium on the anode, then be re-oxidized on the cathode through electrochemical process. Based on this design, the lithium sulfur pouch cell can be fully charged at 1C for more than 140 cycles. Moreover, the regeneration mechanism is studied by in situ UV–vis spectroscopy. This work not only validates the effectiveness of redox mediator for improving the high rate charging and cycling of lithium sulfur pouch cells, but also excludes the invalid mediator type and provides the design concept, guiding the future development of high rate charging strategy for lithium sulfur batteries.
✓ 已验证
产品关联
DOI
高影响因子
Energy Storage Materials
·
2025
·
IF 20.2
Yuhang Gao,Han-Ming Zhang,Jinfeng Sun
With the increasing application and production of lithium-ion batteries, the environmentally friendly and low-cost recycling of degraded lithium-ion batteries has become an urgent issue. Based on the battery degradation theory of active lithium loss, this work proposes a strategy for in-situ remanufacturing of degraded batteries through the injection of the 2,2,6,6-tetramethylpiperidine N-oxide (TEMPO) remediator to replenish the active lithium loss. The mechanism of TEMPO remediator initiated in-situ remanufacturing (TRIISR) strategy is sustainable activation of the inactive Li 0 (lithium dendrites and dead lithium) to recover the degraded capacity. Moreover, TEMPO induces the LiF-rich solid electrolyte interphase (SEI) formation, further enhancing the dynamics and cycling stability of remanufactured batteries. Multiple characterizations and electrochemical tests corroborate the underlying mechanism of TRIISR according to the corresponding evolutions of structure and electrochemical performances of button cells. Based on this TRIISR strategy, the in-situ remanufactured commercial pouch cell exhibits a satisfactory capacity recovery of 5.89% and a lifespan extension by 70%. This work presents the simplicity TRIISR strategy with pro-environment, low-capacity loss rate, great techno-economic benefits due to the internal Li replenishment without damaging the cells. The insightful TRIISR strategy facilitates the secondary utilization of degraded batteries.
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS SCIENCE & ENGINEERING R-REPORTS
·
2025
·
IF 26.8
Muqi Chen,Minglan Ji,Lijun Huang,Ning Wu,Tao Jiang,Chengyu Li,Wanpeng Li,Boyang Yu,Jianjun Luo,Xiaoyi Li,Zhong Lin Wang
With the rapid advancement of the Internet of Things and big data, the sports industry is undergoing a digital transformation. Here, we report a highly elastic, lightweight, and high-performance all-aerogel triboelectric nanogenerator (AA-TENG) for self-powered sensing in intelligent fencing training. Utilizing simple yet effective freeze-drying strategies for fabricating cellulose/carbon nanotube and poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) aerogels, the resulting AA-TENG demonstrates an ultralow density of 7.92 × 10 −3 g/cm 3 , exceptional elasticity (≥90 % height retention) and thermal insulation performance. Moreover, the electrical output performance is significantly enhanced by 57 %, attributed to the increased β-phase content (88.95 %) in the PVDF-TrFE aerogel. Furthermore, a self-powered wireless fencing strike analysis system using convolutional neural network algorithm is developed to accurately classify three types of fencing strikes, enabling more flexible and precise competition judgment and training analysis. This work provides new insights into the application of self-powered systems in intelligent sports and big data analysis, with the potential to significantly impact the global sports industry.
✓ 已验证
产品关联
DOI
高影响因子
Advanced Composites and Hybrid Materials
·
2025
·Vol. 8
·期 5
·1-24
·
IF 21.8
Chen Zhiping,Xie Zhen,Lu Qin,Tian Lingli,Meng Yu,Xue Yichun,Zhu Hongxiang,Wang Lei,He Hui
The directional management of exudate drainage and drug delivery assumes paramount importance in the realm of precision therapy for diabetic wounds. Drawing inspiration from the water-collecting and transporting abilities of cactus spines and the water-drinking behavior of spiny lizards, this work designed a robust self-pumping medical microneedle array composed of cellulose nanofibril-reinforced microneedles by non-covalent cooperative bond networks and a Janus backing layer with bidirectional fluid transport capability. Microneedles reinforced with nanofiber exhibit exceptional photothermal conversion efficiency while maintaining sufficient mechanical strength and toughness for epidermal penetration without deformation. The bidirectional Janus backing encompasses a drug delivery zone and a UV-reversibly induced exudate pumping/wettability maintenance zone, enabling staggered transport of the drug and exudates to guarantee long-term efficacy in sustained drug release, controlled exudate removal and microenvironment wettability maintenance. Crucially, it effectively combines broad-spectrum antibacterial, biofilm elimination, antioxidant, biocompatibility and anti-inflammatory functions with edema reduction in diabetic wounds, significantly accelerating the healing process. These findings present an innovative strategy for designing precision therapeutic materials with multimodal wound management capabilities.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）