ENERGY & FUELS
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2025
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IF 5.3
Jingyu Lv,Kang Tan,Fei Wang,Chuanyu Dang,Mengting Sun
Slow CO2 hydrate formation kinetics restricts the development and industrial application of hydrate-based carbon capture and sequestration (CCS) technology. Here, sodium p-styrenesulfonate (SSS) was employed as a novel promoter for CO2 hydrate formation, and its efficiency, promotion mechanism, and recyclability were systematically studied. Results indicated that SSS improved the hydrate formation kinetics remarkably and yielded the highest CO2 uptake of 8.033 ± 0.348 mmol mL–1 as well as the rapidest hydrate growth rate (HGR) of 0.437 ± 0.075 mmol mL–1 min–1 at concentrations of 50 and 100 mmol L–1. SSS under a moderate concentration also presented high efficacy; 6 mmol L–1 SSS led to a short induction time of 36.37 ± 32.14 min, a rapid HGR of 0.307 ± 0.029 mmol mL–1 min–1, and a high CO2 uptake of 7.036 ± 0.472 mmol mL–1. Morphological observation revealed that the promotion effects were mainly attributed to the climbing hydrate growth caused by capillary effect, which was markedly influenced by the sidewall hydrophilicity and the SSS concentration. Stronger hydrophilicity of the sidewall and a higher SSS concentration both favored the liquid movement, boosted the climbing hydrate growth, and improved the formation kinetics. Additionally, SSS did not produce foam when hydrates dissociated and kept admirable promotion performance in at least six repeated cycles, indicating its excellent recyclability.
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ELECTROCHEMISTRY COMMUNICATIONS
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2025
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IF 4.2
Lin Wang,Hai Yu,YaXin Wang,Miao Chun,QianQian Lei,XinPing Yao,XiaoChen Yao,Xin Wei,JianGuo Lv,Yan Xue,JingWen Zhang,SiWen Zhou,DanDan Qu
This study synthesized p-type Cu 2 O using an electrodeposition method and firmly attached it to TiO 2 nanosheets based on fluorine-doped tin oxide (FTO) substrates, forming a dense film that serves directly as a photoanode for photoelectrochemical (PEC) water splitting. Characterization techniques such as XRD, SEM, XPS, and UV–Vis confirmed the successful deposition of Cu 2 O on the TiO 2 nanosheets, forming a p-n heterojunction structure. The incorporation of Cu 2 O effectively broadened the light absorption range of TiO 2 , with a cut-off wavelength red-shifting to 537 nm, enabling it to absorb more visible light. Photoelectrochemical tests showed that under illuminated unbiased conditions, the photocurrent density of Cu 2 O-TiO 2 reached 0.3 mA/cm 2 , which is 7.5 times that of TiO 2 . After applying a small bias (0.5 V), the photocurrent density further increased to 2.1 mA/cm 2 , 5.2 times that under unbiased conditions, indicating that the introduction of electricity effectively accelerated the separation efficiency of photo-generated carriers. The Cu₂O-TiO₂ heterojunction exhibited significantly higher photocurrent density (measured by LSV) and charge transfer efficiency (evaluated by EIS) than pure TiO₂. This research provides new insights for PEC water splitting technology and serves as a reference for designing high-performance photocatalysts.
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ACS Applied Materials & Interfaces
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2025
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IF 8.2
Zejun Lin,Junhong Ling,A. M. Omer,Xiao−kun Ouyang,Lin Mei,Nan Wang
Combining photothermal therapy (PTT) with chemotherapy shows promise for cancer treatment, but its efficacy is limited by heat shock protein (HSP)-induced thermoresistance and P-glycoprotein (P-gp)-mediated drug efflux. To overcome these challenges, we developed a tumor microenvironment-responsive microneedle platform for synergistic chemotherapy, PTT, and ferroptosis in breast cancer. The system employs Fe3+-coordinated dihydromyricetin (DMY) nanocarriers encapsulating doxorubicin (DMFD NPs) integrated into a flexible polyvinylpyrrolidone (PVP) microneedle patch. The patch adheres tightly to tumors, enabling the rapid delivery and targeted release of DMFD NPs under laser irradiation and acidic conditions. Released Fe3+/Fe2+ ions generate reactive oxygen species (ROS) via Fenton reactions, synergizing with PTT to induce ferroptosis. DMY concurrently inhibits HSP and P-gp, enhancing photothermal-chemotherapy efficacy. In vivo, this approach achieved 92% tumor inhibition, demonstrating its potential to address the limitations of conventional PTT and chemotherapy through localized multifunctional action.
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Biomaterials Advances
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2025
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IF 6
Qin Luo,Kepeng Hu,Haoqing Liu,Xiyue Duan,Wen Chen,Xiaoyi Chen,Xiaojun Long,Weiming Lin,Chengwei Wu,Zhangfa Song,Chengyun Ning,Wenjian Weng,Kui Cheng
The limited self-healing capacity of critical-sized bone defects presents significant challenges in healing. An effective approach is to regulate the physicochemical properties of biomaterials to mimic the natural bone regenerative microenvironment. In this work, we have prepared Chitosan-Gelatin (CS-Gel) based hydrogel/ Poly(vinylidene fluoride- co -trifluoroethylene) (P(VDF-TrFE)) systems, which provide biomimetic and electric cues for bone regeneration. These hydrogel membranes are constructed on P(VDF-TrFE) layers, and the sustained electrical cues rely on the dipole orientation of P(VDF-TrFE). The bilayer structure decouples electrical stimulation and biocompatibility from chemical composition, allowing the generation of self-sustained electrical cues without altering the functional groups on the hydrogel surface. The results show that these hydrogel/P(VDF-TrFE) systems are more effective in polarizing macrophages toward the alternatively activated (M2) phenotype and promoting stem cell differentiation in vitro. Furthermore, the hydrogel/P(VDF-TrFE) system enhances the expression of anti-inflammatory cytokines and encourages new bone formation in vivo. This work presents a promising strategy to accelerate bone regeneration by combining electrical cues and biomimetic environments, offering a new preparation method for hydrogel/P(VDF-TrFE) systems with self-sustained electrical cues.
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PHYSICAL CHEMISTRY CHEMICAL PHYSICS
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2025
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IF 2.9
Jianfang Lu,Chaojie Fan,Yuanyuan Huang,Pengfei Li,Fuhou Lei,Haitang Xu,Caiyun Han,Kechun Li,Yu Feng
Tetracycline (TC) presents significant risks to the human health and has the potential to cause substantial harm to ecological systems due to its excessive utilization. However, carbon-based materials have attracted considerable interest for their efficacy in removing TC from aquatic environments. In this study, phosphorus and oxygen co-doped pinecone biochar (po-PBC) with a three-dimensional (3D) hierarchical porous architecture was synthesized and employed for the adsorption of TC. To elucidate the adsorption characteristics of po-PBC for TC, four adsorption kinetic models and four isotherm models were utilized. The adsorption data were best described by the pseudo-second-order kinetics model, as evidenced by an R2 value of 0.9975. Furthermore, the removal efficiency of TC using po-PBC increased to 81.67% at 313 K for an initial concentration of 150 mg L−1 in comparison to unmodified PBC. The observed increase can be attributed to the co-doping of phosphorus and oxygen heteroatoms, along with the presence of a three-dimensional hierarchical porous structure. The Langmuir isotherm model, exhibiting R2 values between 0.9830 and 0.9926, accurately characterized various equilibrium isotherms. The maximum adsorption capacities for TC at temperatures of 298 K, 308 K, and 318 K were determined to be 1137.09 mg g−1, 1379.23 mg g−1, and 1401.77 mg g−1, respectively. The relatively low average free energies, ranging from 0.11 to 0.63 kJ mol−1, corroborated the physical nature of the adsorption process. Thermodynamic parameters (ΔH > 0, ΔG < 0, and ΔS > 0) further indicated that the adsorption process was spontaneous and endothermic. Moreover, the adsorption capacity of TC was retained at 88.12% after five successive adsorption-regeneration cycles. Therefore, po-PBC demonstrates significant potential for the removal of TC from wastewater. Additionally, it offers novel insights into the reduction, stabilization, and resource utilization of pinecones.
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LANGMUIR
·
2025
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IF 3.9
Yangjie Zhong,Chengming Tang,Jidong Sun,Yafeng Zhang,Jiaxin Yu
Dielectric materials with superior dielectric properties are pivotal for enhancing the performance of electrowetting-on-dielectric (EWOD) devices. In this work, MWCNTs@SiO2 core–shell-structured fillers were fabricated by coating multiwalled carbon nanotubes (MWCNTs) with a uniform SiO2 outer layer. This innovative core–shell structure was incorporated into a poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) (P(VDF-TrFE-CTFE)) and poly(methyl methacrylate) (PMMA) organic matrix to fabricate composite films with enhanced dielectric properties. The incorporation of core–shell fillers significantly enhanced the microcapacitor effect and Maxwell–Wagner–Sillars interface polarization. At a low filler loading of 4 wt %, the composite achieved a high dielectric constant of 25.4 (at 100 Hz), representing a 108.2% enhancement compared to the pristine polymer matrix, while maintaining a low dielectric loss as low as 0.05. Furthermore, the SiO2 shell effectively mitigated inhomogeneous electric field distribution induced by dielectric constant mismatch, reducing field distortion and consequently enhancing the breakdown strength. Notably, under a DC voltage below 50 V, a high contact angle modulation range of 38.3° was achieved, representing a 151.97% enhancement compared to the pristine polymer matrix. These findings provide a new strategy for developing high-performance dielectric materials for EWOD applications.
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ENVIRONMENT INTERNATIONAL
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2025
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IF 9.7
Zirui Liu,Dehua Ma,Qiang Cheng,Aroob Abid,Shuaijie Zhao,Chenyi Li,Qingzhuo Niu,Min Zheng
p- Benzoquinone analogues, a class of ubiquitous oxidation byproducts, are increasingly detected in effluents from various oxidative treatment systems. While halogenated derivatives have received substantial research attention, the ecotoxicological impacts of non-halogenated analogues—particularly in vivo —remain poorly characterized. This study systematically compared the toxicity of 2,6-dichloro- p -benzoquinone (2,6-DCBQ) and 2,6-dimethyl- p -benzoquinone (2,6-DMBQ) using zebrafish embryos. 2,6-DMBQ exhibited comparable lethality to 2,6-DCBQ (48 h EC 50 = 221.72 vs. 169.17 μg/L), with developmental malformations of cardiac edema and notochord malformation mainly emerging in juvenile fish at 250 μg/L. Exposure to 2,6-DCBQ of 2.5 μg/L and 2,6-DMBQ of 25 μg/L induced significant oxidative stress, elevating reactive oxygen species (ROS) levels and upregulating antioxidant enzymes of total superoxide dismutase, catalase, and glutathione peroxidase. PCR gene chip analysis showed that 23 oxidative stress-related genes were coordinately upregulated in both treatment groups. Co-exposure with N-acetylcysteine (20 μM) or Na 2 SO 3 (Na 2 SO 3 : p -BQs = 10:1) synergistically mitigated toxicity of 2,6-DCBQ and 2,6-DMBQ at 250 μg/L, restoring morphological and biochemical endpoints to control levels. Electron paramagnetic resonance confirmed semiquinone radicals and hydroxyl radicals as key drivers of ROS amplification. These findings establish radical-mediated mechanisms as critical toxicological pathways and inform risk management strategies for quinoid byproducts in water treatment systems.
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JOURNAL OF CONTROLLED RELEASE
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2024
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IF 10.5
Mao Xu,Shihui Yu,Pengyu Li,Yili Chen,Yujun Chen,Jieyi Pan,Xin Deng,Haiyan Hu
Therapeutic challenges of chronic pulmonary infections caused by multidrug-resistant Pseudomonas aeruginosa (MDR P. aeruginosa ) biofilms due to significantly enhanced antibiotic resistance. This resistance is driven by reduced outer membrane permeability, biofilm barriers, and excessive secretion of virulence factors. Thickened mucus in the airways exacerbates the problem by impeding antibiotic penetration, providing a breeding ground for biofilms, consequently aggravating infection. Moreover, biofilms recruit numerous immune cells, resulting in chronic inflammation and lung tissue damage. In turn, damaged airway further facilitates bacterial colonization and elevated mucus production. To thoroughly disintegrate the stubborn triad of “thickened mucus & dense biofilm & excessive inflammation” and address drug resistance, tailored multilayer nanoparticles (NPVC/PBIP NPs) were developed. NPVC/PBIP NPs were engineered through self-assembly of vanillin-chitosan amphiphilic polymer loading polymyxin B-linoleic acid ion pairs in. Then polyaspartic acid and N -acetylcysteine-ε-poly- l -lysine were coated by layer-by-layer on the surface of vanillin-chitosan NPs via electrostatic interactions. As expected, the NAC units on NPVC/PBIP NPs effectively thinned human clinical sputum and porcine sputum, resulting in rapid sputum penetration followed by biofilm permeation. NPVC/PBIP NPs achieved over 99 % eradication of mature biofilms in vitro . Furthermore, they effectively inhibited virulence factors production and bacteria re-adhesion (biofilm reformation) while exhibiting superior anti-inflammatory and antioxidant activities. In a chronic pulmonary infection model, NPVC/PBIP NPs remarkably thinned airway mucus, reduced bacterial burden by 99.7 %, alleviated inflammatory cell infiltration, and minimized lung tissue damage. In summary, the NPVC/PBIP NPs represent a novel and promising strategy to manage MDR P. aeruginosa biofilms associated infections by disintegrating the stubborn triad of “thickened mucus & dense biofilm & excessive inflammation”.
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ACS Photonics
·
2024
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IF 6.5
Guixiang Xie,Qilong Li,Xiaochun Lu,Longtao Li
Organic–inorganic hybrid perovskite solar cells (PSCs) have shown impressive photoelectric conversion efficiency (PCE) but suffer from inevitable degradation when exposed to air and light. Replacing the organic cations with inorganic Cs+ to yield all-inorganic CsPbX3 perovskites can improve the stability under environmental pressure. Among them, cesium lead bromide (CsPbBr3) perovskite shows great environmental tolerance under illumination, humidity, heat, and oxygen attack. However, the energy gap between the carbon electrode and CsPbBr3 limits the carrier separation–transfer rate. Herein, p-type charge-transfer-doped NiO nanocrystals are employed as hole transport materials in all-inorganic CsPbBr3 PSCs with a fluorine-doped tin oxide (FTO)/SnO2/CsPbBr3/NiO-l-Cys/carbon structure. This combination reduces the charge-carrier recombination by decreasing the hole transport potential energy-level barrier between the perovskite and the hole transport layer. The coordination of the energy structure associated with the interfacial charge extraction–transfer action leads to a remarkable enhancement in PCE (9.61%) and a much higher open-circuit voltage (1.614 V), surpassing those achieved by hole-free devices (7.35% and 1.504 V, respectively). The PSC device assembled with NiO nanocrystals displays good stability under high humidity and temperature for 30 days. The greatly improved PCE, coupled with good stability, demonstrates the great potential of l-cysteine-doped NiO for future use as a hole-transporting material in all-inorganic PSCs.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Xusen Li,Bingxin Sun,Liwei Lin,Yuanzhe Piao,Guowang Diao,Wang Zhang
This paper proposes a simple and rapid microwave-assisted phosphorus-oxygen doped porous carbon (P/O-PC) preparation strategy is proposed using potassium citrate, Phytic acid (PA), and ethanol under air atmosphere. PA can be used as both a phosphorus source and a microwave absorbing agent. The P/O-PC500–0.75 has a large specific surface area of 905 cm 2 /g. P/O doping introduces defects into the carbon structure, which enhances the capacitance of the porous carbon. The P/O-PC500–0.75 demonstrates excellent capacitance values of 330 F/g and 389.4 F/g in 6.0 M KOH and 1.0 M H 2 SO 4 , respectively (1 A/g). In addition, the symmetrical supercapacitors assembled with the P/O-PC500–0.75 exhibit good electrochemical stability over 5000 cycles at 5 A/g, with a capacitance loss of only 3.6%. This microwave-assisted strategy offers simplicity in operation and low energy consumption, providing a new and efficient pathway to prepare carbon materials in a fast and simple manner.
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JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
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2025
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IF 4.9
Xiguang Huang,Lingfang Xu,Jinyan Wang,Changping Yang,Haibo Xiao,Shiheng Liang,Ruilong Wang
We designed novel BiFeO 3 /P(VDF-TrFE) gradient structures and spun coating composite films on a fluorine-doped tin oxide (FTO) conductive glass substrate. A large remnant ferroelectric polarization of 29.5 μC/cm 2 , a 210 % improvement over the pure P(VDF-TrFE) film, is achieved by BiFeO 3 nanoparticles embedment, with the coercive electric field E c effectively restrained by 12 %. The structure analysis showed increased polar phase, reduced crystal size, and established long chains after BiFeO 3 gradient incorporation, which are essential to the ferroelectric performances. The finite element simulation by COMSOL software illustrated an apparent potential redistribution up to 342 MV/m at an external electric field of 160 MV/m and large leakage currents around BiFeO 3 , which reflect the heterogeneous regions formed at the interfaces and they are contributive to the micromorphology. These gradient composite films have potential in the low electric field driving flexible electronic devices.
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ACS Applied Materials & Interfaces
·
2024
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IF 8.3
Li Long,Xuechun Wang,Heyun Fu,Xiaolei Qu,Shourong Zheng,Zhaoyi Xu
Iron-based materials are effective for the reductive removal of the disinfection byproduct bromate in water, while the construction of highly stable and active Fe-based materials with wide pH adaptability remains greatly challenging. In this study, highly dispersed iron phosphide-decorated porous carbon (Fe2P(x)@P(z)NC-y) was prepared via the thermal hydrolysis of Fe@ZIF-8, followed by phosphorus doping (P-doping) and pyrolysis. The reduction performances of Fe2P(x)@P(z)NC-y for bromate reduction were evaluated. Characterization results showed that the Fe, P, and N elements were homogeneously distributed in the carbonaceous matrix. P-doping regulated the coordination environment of Fe atoms and enhanced the conductivity, porosity, and wettability of the carbonaceous matrix. As a result, Fe2P(x)@P(1.0)NC-950 exhibited enhanced reactivity and stability with an intrinsic reduction kinetic constant (kint) 1.53–1.85 times higher than Fe(x)@NC-950 without P-doping. Furthermore, Fe2P(0.125)@P(1.0)NC-950 displayed superior reduction efficiency and prominent stability with very low Fe leaching (4.53–22.98 μg L–1) in a wide pH range of 4.0–10.0. The used Fe2P(0.125)@P(1.0)NC-950 could be regenerated by phosphating, and the regenerated Fe2P(0.125)@P(1.0)NC-950 maintained 85% of its primary reduction activity after five reuse cycles. The study clearly demonstrates that Fe2P-decorated porous carbon can be applied as a robust and stable Fe-based material in aqueous bromate reduction.
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