JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Xingwang Zhu,Xiang Liu,Xiang Shi,Fujiang Huang,Hangmin Xu,Ganghua Zhou,Xiaozhi Wang,Xu Dong,Penghui Ding,Jianning Ding,Hui Xu
The surface of photocatalysts plays a key role in the adsorption and activation of CO 2 molecules. Establishing the conformational relationship between the crystalline phase of the photocatalysts and the CO 2 reduction reaction (CO 2 RR) activity is crucial to understanding the catalytic reaction mechanism. Herein, we synthesized CdS catalysts with different exposed crystalline facets (CdS[100], CdS[001], and CdS[111]) using hydrothermal and water bath methods and evaluated their photocatalytic CO 2 RR performances. The results showed that CdS[001] displayed an optimal activity with a 203.2 μmol g −1 h −1 of CO generation rate compared with CdS[100] and CdS[111]. More importantly, the CdS[001] catalyst shows the best CO selectivity ( S CO : ~ 86.6 %) and CO 2 reduction selectivity ( S CO2 : ~95.4 %) compared with CdS[100] ( S CO : 79.3 %; S CO2 : 90.0 %) and CdS[111] ( S CO : 79.6 %; S CO2 : 82.8 %). The optimal CdS[001] catalyst significantly inhibited the competing hydrogen evolution reaction. The adsorption and activation behaviors of CO 2 on various exposed surfaces of CdS are explored in depth based on density functional theory calculations and in-situ Fourier transform infrared spectra measurements. This work provides new insights into understanding the role of facet control in enhancing photocatalytic CO 2 conversion.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Wei Ding,Jun Wang,Hongxia Zhao,Ziqi Zhang,Dongpo Wei,Kewei Zhang
The limited selectivity of metal oxide semiconductor (MOS) gas sensors poses a significant challenge in accurately identifying volatile organic compounds (VOCs) within industrial environments. Here, platinum-modified tungsten oxide (Pt/WO 3 ) composite was successfully prepared through in-situ reduction, which not only possesses superior gas-sensing performance towards ppm-level triethylamine but also achieves robust humidity resistance and long-term stability. Benefiting from the catalytic sensitization of noble metal, the as-fabricated Pt/WO 3 sensor exhibits improved sensitivity towards triethylamine as compared with the pristine tungsten oxide (WO 3 ) sensor. To minish low-frequency noise and promote selectivity, the sensor response curves were fitted and processed with discrete wavelet transform (DWT) for 4-level decomposition. Accompanied with multivariate feature extraction, an artificial neural network (ANN) algorithm was developed to categorize and identify multiple VOCs including triethylamine, ammonia, and isopropanol, enabling a decision boundary with 95.2 % accuracy. Moreover, the prediction of unknown gas concentration was successfully achieved by linear regression model after training a series of as-known concentrations. This work not only offers a rational solution to design high-performance gas sensors but also provides an intelligent strategy to identify gas concentration under multiple VOCs.
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Journal of Materials Chemistry A
·
2025
·
IF 9.5
Pengzhan Yang,Cui Liu,Jiahao Zhu,Nian Li,Shudong Zhang,Zhenyang Wang
Silica fiber aerogels often show considerably increased high-temperature thermal conductivity because of the weak infrared extinction ability, while showing limited mechanical strength. Improving infrared shielding and boosting structural strength are key challenges in achieving high-temperature insulation with SiO2 nanofiber aerogels. Here, a multiphase sequence and multiscale structural engineering strategy is proposed to synthesize multiscale symbiotic carbonaceous SiO2 nanofiber aerogels composed of ZrO2 pinning structure to achieve high-temperature thermal insulating performance with high mechanical strength. ZrO2 nanocrystalline pinning effect can effectively impede the formation of shear band and suppress the generation-migration of pores and micro-cracks of single amorphous SiO2 nanofiber, enhancing thermal stability and mechanical strength. Besides, what is particularly impressive is that the design of the pinning structure can also stabilize high extinction symbiotic carbon species to achieve the presence of high content carbon, thereby suppressing the thermal radiation heat transfer to reduce high temperature thermal conductivity. Meanwhile, the layered assembly and coating construction at the mesoscale further enhance the antioxidant capacity of the aerogel. Finally, the 3D aerogel assembled in layers demonstrates outstanding mechanical properties (a compressive strength of 78.27 KPa at 60% strain and a tensile strength of 240.69 KPa, which is several times better than that of other ceramic fiber aerogels) and ultralow thermal conductivity over a wide temperature range (0.0935 W m-1 K-1 at 1000 oC, which is approximately one order of magnitude lower than that of conventional ceramic fiber aerogels). Our work provides a new option for heat insulation under extreme conditions.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
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IF 9
Huanhuan Dong,Xiaoyu Ji,Zhao Li,Junxiang Guo,Shan Peng
Viscous oil spills (e.g., petroleum and diesel) in marine environments and domestic oily wastewater pose seriously ecological and public health risks owing to their high viscosity and poor fluidity, making the remediation a very urgent challenge. To address these issues, we designed an inherently hydrophobic MXene/hollow CuCo-MOF (H-CuCo-MOF)@PDMS sponge featuring an instantly photothermal response and a multiscale wrinkled structure. The confined effects of H-CuCo-MOF and MXene synergistically generate an efficient electron transport network, where interfacial charge transfer enhances carrier lifetime, thereby prolonging photothermal conversion efficiency. In Addition, the high specific surface area of H-CuCo-MOF and the layered structure of MXene increase confined adsorption sites while preventing MOF aggregation. Stress mismatch between flexible PDMS and rigid MXene form a highly wrinkled architecture, effectively mitigating MXene stacking. Under 1-sun irradiation, the sponge’s surface temperature quickly reaches ∼80 °C within 20 s, altering surface tension and inducing the Marangoni effect to accelerate oil absorption. Moreover, taking advantages of high match between the coated sponge and the viscous oil, the separation efficiencies are exceeding 95 % for diesel oil and rapeseed oil, and 82.7 % for crude oil. The material also proves superior durability, maintaining stable hydrophobicity after 150 friction cycles, exceptional mechanical recovery (99.2 % after 10 compressions), and notable salt resistance and antibacterial properties.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Yue Liu,Zhaoyang Wang,Wentao Bi,Can Jin,David Da Yong Chen
A sustainable and environmentally benign approach was developed to valorize Phyllostachys edulis bamboo biomass into functional biochar (DESChar) via deep eutectic solvent (DES)-assisted solvothermal carbonization. Unlike previous reports that focus on DESs for biomass pretreatment, this study uniquely uses a carboxylic acid-based DES both as reaction medium and chemical activator in a one-pot synthesis of DESChar. The DES-induced reorganization of bamboo structure led to the formation of spherical carbon microspheres with high surface area and abundant functional groups. The optimized DESChar exhibited outstanding adsorption capacities of 850.14 mg/g for malachite green (MG) and 259.94 mg/g for rhodamine B (RB), surpassing many conventional adsorbents. Structural and compositional analyses confirmed its aromatic, and porous framework enriched with carboxyl and hydroxyl groups. Adsorption kinetics followed a pseudo-second-order model, and the thermodynamics indicated a spontaneous, and endothermic chemisorption process. Mechanistic insights supported by Zeta potential, XPS, and thermodynamic data revealed that electrostatic, hydrogen bonding, and π-π stacking interactions dominate the adsorption process. The DESChar also showed strong selectivity toward cationic dyes in mixed systems, high ion tolerance, and excellent reusability. An economic assessment further supported the feasibility of the preparation strategy. This study not only demonstrates a DES-enabled route to functional biochar from bamboo but also contributes to advancing sustainable separation technologies for wastewater treatment.
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AICHE JOURNAL
·
2025
·
IF 4
Haichao Zhou,Jianglin Liu,Dalang Chen,Yanlin Qin,Tiejun Wang,Xueqing Qiu,Xuliang Lin
The electrochemical conversion of glycerol into dihydroxyacetone (DHA) under mild conditions efficiently addresses glycerol surplus, enhancing its economic value. However, DHA production efficiency remains constrained by steric hindrance from secondary hydroxyl groups and sluggish glycerol electro-oxidation reaction (GOR) kinetics in weakly alkaline conditions. Herein, lignin-derived carbon-supported MnO–Ni heterojunction catalyst (MnO–Ni/C) is synthesized via self-assembly precipitation and in situ pyrolysis. The optimized MnO–Ni/C catalyst requires a low potential of 1.58 V to achieve 10 mA cm −2 , 270 mV lower than the oxygen evolution reaction (OER). It attains a 53.37% DHA selectivity with a high production rate of 864.75 mmol m −2 h −1 at 1.8 V. MnO–Ni/C heterostructures modulate the local electronic structure of Ni sites, optimizing glycerol adsorption configuration and enhancing selective adsorption of secondary hydroxyl groups and oxygen active species near the electrode surface. These synergistic effects significantly improve GOR kinetics and DHA production efficiency.
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Defence Technology
·
2025
·
IF 5.9
Yingke Chang,Pengtao Cheng,Zhe Kong,Jianxin Nie,Wei Ren,Xiaohui Liang,Enyi Chu,Qingjie Jiao,Jianjun Luo
Initiating explosive devices (IEDs) are crucial in both military and civilian applications for improving the accuracy of controlled detonations. However, the safety of semiconductor bridge (SCB) wire IEDs, which are the most widely used, is increasingly threatened by complex electromagnetic environments. Although protective devices such as thermistors and zener diodes are commonly employed to enhance safety, traditional discrete components can compromise compactness and provide only marginal improvements. The metal-insulator transition properties of vanadium dioxide (VO 2 ) present an innovative approach to enhancing the safety performance of IEDs. Nevertheless, the functional relevance of the VO 2 phase transition in relation to IEDs has garnered limited scientific attention. The VO 2 film fabricated via 3D printing demonstrated resistivity modulation ranging from 2 to 5 orders of magnitude, achieving a stable metallic-state resistance of 1.2 Ω. The results show that this process increases the 5-minute safe current threshold by 90%, from 1 A to 1.9 A, and reduces the temperature generated by the current by approximately 40% when below the safe current threshold. Integrating VO 2 film into IEDs via semiconductor processes significantly enhances safety performance while maintaining detonation capability, demonstrating its effectiveness as a safety modulator in pyrotechnic engineering.
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COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
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2025
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IF 4.3
Qingyan Wang,Yunjie Su,Qian Yang,Trust Beta,Fei Shen,Qin Liu
Bisphenol A (BPA) is a typical endocrine disrupting chemical widely distributed in the environment and in food systems. The adverse effects of BPA on reproductive health have posed major concerns worldwide. The aim of this study was to determine the potential of epigallocatechin gallate (EGCG) to protect against BPA-induced male reproductive toxicity and investigate the underlying protective mechanism. The protective effects of EGCG on BPA-induced reproductive toxicity were investigated using male zebrafish model. The results showed that EGCG alleviated BPA-induced developmental toxicity of F1 generation of zebrafish, reversed testis disorder and combated the blood-testis barrier (BTB) damage caused by BPA in zebrafish. In order to unravel the underlying mechanism, TM4 cell - constructed BTB model was used for further study. The results indicated that EGCG counteracted the damage induced by BPA on the integrity of BTB model and reduced the autophagy caused by BPA. Furthermore, EGCG effectively inhibited the BPA-induced upregulation of the expression level of AMPK (p-AMPKα/AMPKα), significantly restored the BPA-mediated downregulation of the expression levels o。f p-mTOR/mTOR, p-AKT/AKT and Raptor. The results suggested that EGCG mitigated the BPA-induced male reproductive toxicity through maintaining the integrity of BTB by inhibiting the autophagy mediated by AMPK/AKT/mTOR signaling pathway. This study provided a strategy for combating the BPA-induced reproductive toxicity using a well-known bioactive component as a potential therapeutic approach.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Hong Qian,Binxia Yuan,Yuhao Liu,Rui Zhu,Chengxi Zhang,Hexing Li
Photocatalytic CO2 reduction to renewable fuels presents a promising strategy to mitigate greenhouse effects, yet challenges persist in achieving high efficiency due to CO2’s thermodynamic stability and competitive H2O adsorption. Herein, we develop a superhydrophobic photochromic TiO2/Bi2Wo6 (TBW-2O) nanocomposite that synergistically enhances visible-light-driven CO2 reduction. Dynamic charge management via reversible W6+↔W5+ transitions not only suppresses charge recombination but also facilitates electron transfer for CO2 activation, as evidenced by in situ XPS and EPR. The superhydrophobic surface designed with sodium oleate (water contact angle >150°) selectively enriches CO2 at the active sites compared to H2O (ΔGCO2 = −2.88 eV vs ΔGH2O = −1.17 eV). Dual heterojunction effects (Type II + Z-scheme) between TiO2 and Bi2WO6 optimize light absorption and redox potentials. The optimized TBW-2O achieves exceptional CH4 and CO production rates of 48.09 and 37.40 μmol·g–1·h–1, respectively, representing 19.7- and 6.6-fold enhancements over pure TiO2. Notably, it attains an apparent quantum yield (AQY) of 0.35% (CH4) and 0.32% (CO) at 350 nm without sacrificial agents or noble metals. Combined experimental and theoretical analyses reveal that the W6+/W5+ redox cycle and hydrophobic interface collaboratively promote COOH/CHO intermediate formation, steering the reaction pathway toward CH4. This work provides a design blueprint for multifunctional photocatalysts integrating photochromism and surface wettability control.
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CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Donglei Wei,Jingyi Fang,Jiuhui Bian,Xifeng Yang,Yushen Liu,Bo Ram Lee
Transition metal perovskite oxide is one of the most important functional materials for applications in light energy conversion due to the distinctive structures and characteristics. This work reports self-activated luminescence of Ba 3 WVO 8.5 , a hybrid hexagonal perovskite. Ba 3 WVO 8.5 acts as an indirect allowed transition, with a band gap energy of 3.2 eV. At 300 K, it exhibits a broad self-activated luminescence band peaking at 527 nm, with a decay lifetime of 0.09 μs. There are two distinct intrinsic centers, WO 6 and VO 6 , in the lattices that contribute to the self-activated luminescence. The photoluminescence (PL) and temperature-dependent spectra confirm the energy transfer process from WO 6 to VO 6 centers. The cation substitutions in Ba 3 WVO 8.5 can exert obvious effect on the luminescence efficiency. Especially, the substitution of Ba 2+ by Sr 2+ +Ca 2+ significantly enhances its self-activated luminescence. The maximum quantum efficiency (QE) in Ba 2.7 Sr 0.15 Ca 0.15 WVO 8.5 can reach up to 34 %. Moreover, Ba 3 WVO 8.5 exhibits scintillation characteristics under X-ray irradiation. Its emission efficiency is still significantly lower than that of the commercial Bi 4 Ge 3 O 12 scintillator, but Ba 3 WVO 8.5 shows advantages in QE under UV excitation and in fast decay lifetime. The experimental results may play a valuable role in the development of new luminescent materials and further understanding of the hybrid hexagonal perovskite oxides.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Yongxing Shang,Jian Xiong,Shuo Chen,Junjie Zhu,Xiaodie Zhao,Bitao Xiong,Xing’ao Li
Acid Orange 7 (AO7) is a recalcitrant contaminant exhibiting persistent resistance to degradation in aquatic environments. Materials based on graphitic carbon nitride (
) demonstrate significant potential in removing pollutants like AO7 through synergistic interactions with oxidants, utilizing their exceptional catalytic properties and high surface area for adsorption. However, their effectiveness is limited by a relatively large band gap, which hinders their catalytic performance. This study reveals that Ni/O dual-doped
(NiOCN) effectively optimizes the structure and catalytic performance of
. Experimental results indicate that the NiOCN/peroxymonosulfate (PMS) system exhibits optimal AO7 degradation performance, achieving 92.3% degradation within 10 min while maintaining 80% efficiency in simulated aqueous matrices. Quenching experiments further identified superoxide anion radicals ( ⋅ O 2 − ) as the predominant reactive species governing AO7 degradation. Using density functional theory (DFT) calculations, we confirmed that Ni/O dual-doping narrows the band gap and boosts catalytic activity. Our findings mechanistically demonstrate that Ni/O dual-doping augments PMS activation performance by introducing impurity energy levels, increasing adsorption sites, and accelerating electron migration kinetics.
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MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 9
·1-13
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IF 5.3
Li Zehao,Jing Weixuan,Yang Zhenwei,Gao Weizhuo,Zhou Fan,Han Feng,Mao Qi,Zhao Libo,Yang Zhaochu,Jiang Zhuangde
A low-hysteresis coaxial pH sensor was presented for continuous soil monitoring. The electrolyte was irradiated with ultraviolet (UV) light for different durations, and then used for the electrodeposition of the IrO x film onto the front end of a stainless-steel wire, forming the working electrode. The reference membrane/AgCl/Ag paste (reference electrode) was coaxially integrated onto the insulated middle section of the working electrode, creating the pH sensor. It is found that the UV irradiation treatment generates sufficient hydroxyl radicals in the electrolyte, which increases the proportion of IrO 2 on the surface of the formed IrO x film and further enhances its reversible surface reactions with H + . The reference electrode is reliably integrated with the working electrode, which effectively miniaturizes the pH sensor for soil monitoring. With the UV irradiation duration optimized to be 2 days, the sensitivity and hysteresis voltage of the pH sensor were determined to be -74.8 mV/pH and 3 mV, respectively. The pH sensor maintained a stable potentiometric response even when bent to a 180° angle or subjected to 50 bending cycles. Moreover, the pH values of six soil samples were reliably determined, and the pH variations in a soil sample were monitored over an 11-day testing period. These results benefit accurate and continuous pH monitoring in agricultural and livestock applications. Graphical
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