ENVIRONMENTAL RESEARCH
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2025
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IF 7.7
Jinqiang Fu,Fenglan Liang,Wenjing Zhong,Tao Kuang,Ziyuan Yin,Yongshi Li,Zhenggui Huang,Hongli Liu,Deyun Ma
Establishing a simple and consistent strategy to adjust the photocatalyst surface to improve the photocatalytic performance is crucial but remains challenging. Herein, a photocatalyst of TiO 2 -Q-Pd is obtained through one-step quenching of TiO 2 (derived from NH 2 -MIL-125(Ti)) into an aqueous solution of sodium tetrachloropalladium, which displayed a significant improvement in photocatalytic activity, achieving 97 % tetracycline degradation within 60 min and 95 % mineralization at 5 h. The mineralization reaction rate (0.6321 h −1 ) was 2.75 times that of the commercial TiO 2 . Our findings show that quenching leads to the creation of numerous zigzag surfaces and the near-surface palladium atom doping, therefore adjusting the chemical environment of Ti, which accelerates electron-hole pair separation and transfer, and thereby improves the photocatalytic performance. This finding introduces a novel approach to activating metal oxide catalysts derived from MOFs and expands the role of quenching chemistry in catalytic processes.
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Journal of Water Process Engineering
·
2025
·
IF 6.7
Yue He,Shuang Xiao,Jiabin Zhou,Dan Liu,Zhipu Wang
A novel CuO x /Fe 2 O 3 composite catalyst was synthesized by a hydrothermal method and systematically evaluated for its peroxomonosulfate (PMS) activation capability under visible light irradiation, using tetracycline hydrochloride (TC-HCl) as the model pollutant. The results demonstrated that the CuO x /Fe 2 O 3 catalyst exhibited excellent catalytic oxidation performance, achieving 92.1 % TC-HCl degradation within 30 min through the generation of multiple reactive oxygen species (ROS) under visible light, including superoxide radicals (•O 2 − ), sulfate radicals (•SO 4 − ), hydroxyl radicals (•OH) and singlet oxygen ( 1 O 2 ). The mechanistic studies revealed that synergistic interaction between Fe and Cu bimetallic components significantly enhanced PMS activation efficiency, generating more reactive species and thereby increasing the degradation rate of TC-HCl. In addition, the CuO x /Fe 2 O 3 /PMS/vis system effectively degraded different pollutants (including Ciprofloxacin, Phenol, and Rhodamine B) and showed good tolerance to humic acid (HA) and salinity, among others. These findings highlight the practical potential of the CuO x /Fe 2 O 3 /PMS/vis oxidation system for the removal of organic pollutants in wastewater treatment field.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Fengping Yang,Dengsheng Zheng,Libin Zhang,Jiamin Yuan,Liliang Wang,Min Long,Yanzhen Yin,Ke Sun,Cong Liu,Hongxiang Zhu,Tao Liu
The emergence of antibiotic-resistant superbugs has heightened concerns about environmental pollutants such as tetracycline hydrochloride, necessitating effective removal strategies. Among various treatment approaches, interfacial modification means to realize efficient pollutant removal is an ideal method. In this study, a breakthrough in photocatalytic technology was achieved by developing a novel material that combines excellent adsorption capacity with enhanced photocatalytic performance. The innovation lies in our pioneering implementation of a third-component doping strategy, which enabled the construction of an organic semiconductor intrinsic heterojunction photocatalytic layer with an A-D-A structure, integrated onto a natural biomass carbon substrate. This strategic integration creates a synergistic system wherein the natural biomass carbon component rapidly concentrates pollutants, while the organic semiconductor bulk heterojunction photocatalytic layer generates electrons and free radicals for degradation. The material's exceptional performance is evidenced by its ability to completely degrade 20 mg/L of tetracycline hydrochloride within 30 min, establishing a new benchmark in treatment efficiency. Through density-functional theory (DFT) analysis, we have elucidated the underlying degradation mechanism, providing theoretical insights that may facilitate the development of advanced treatment solutions for a broader spectrum of organic pollutants through adsorption photocatalysis.
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INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Xiangkai Wang,Zhe Wang,Jianying Zhang,Jiaxing Chen,Yuqi Zhang,Weitao Zhang,Lingyun Cheng,Zhangjing Chen,Ximing Wang
Developing intelligent fire alarm sensors with flame retardant and thermal insulation capabilities using advanced manufacturing techniques is a key challenge in enhancing fire coverage and protection. In this study, three-dimensional porous smart fire-warning aerogels were fabricated via a freeze-drying technique, using carboxylated cellulose nanofibers (CCNF), graphene oxide (GO), and sodium-based montmorillonite (Na-MMT) as the primary constituents, with boric acid (BA) serving as the cross-linking agent. The aerogel with 50 % CCNF (CCNF-GMB-50) not only exhibit low density and excellent thermal insulation properties but also maintain an ultra-long alarm duration of up to 300 s and a high sustained current of 74 mA even after the alarm is triggered, despite the continued burning of flames. Furthermore, the incorporation of GO and Na-MMT led to a 36.92 % reduction in average heat release rate (PHRR) and a 51.61 % decrease in peak CO 2 production rate (PCO 2 P), showcasing their synergistic effects. This study introduces a promising strategy for developing multifunctional materials that combine fire warning, flame retardant, and thermal management properties, with potential applications in building insulation, fire protection, and chemical safety.
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COLLOIDS AND SURFACES B-BIOINTERFACES
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2025
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IF 5.6
Xiaoyi Huang,Wenbin Huang,Junqin Wang,Rui Mu,Xueqin Bai,Yuntao Lin,Yuling Chen,Xiaolian Li,Feilong Jiang,Ju Fang,Fuzeng Ren,Tao Pei
Aesthetic demands in contemporary dentistry have driven the widespread adoption of clear aligners (CAs), yet their polymeric substrates lack intrinsic antibacterial and anti-inflammatory functionality, predisposing the periodontium to inflammation during prolonged wear. Here, we present a multifunctional surface coating for PETG-based CAs, comprising dopamine-grafted TEMPO-oxidized bacterial cellulose nanofibers (TOBC-DA), curcumin (Cur), and polyvinyl alcohol (PVA), applied via a facile spin-coating process. TOBC-DA serves as a bioadhesive matrix that forms a robust, long-lasting bond with PETG while maintaining chemical stability in simulated oral conditions. Incorporation of Cur endows the coating with potent antibacterial and anti-inflammatory activity, and PVA enhances Cur solubility to ensure uniform film formation. The resulting composite layer-measuring under 5 μ m in thickness-preserves the optical transparency, dimensional fidelity, and mechanical integrity of PETG. Structurally, the cross-linked TOBC-DA network and PVA backbone confer enhanced wear resistance and fracture resistance without compromising flexibility. Functionally, the hydrophilic surface repels early colonizers such as P. gingivalis , while sustained Cur release disrupts bacterial cell membranes and downregulates pro-inflammatory mediators (IL-6, TNF-α, MMP-9) in periodontal tissues. This work demonstrates a clinically translatable coating strategy that integrates aesthetic preservation with active periodontal protection, offering a promising route to improve oral health outcomes during CAs therapy.
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MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 9
·1-16
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IF 5.3
Meng Jingjing,Han Lu,Li Lu,Yin Xue-bo,Zheng Jing
Manganese dioxide (MnO 2 )-based heterogeneous catalysts have gained significant attention in nanozyme research due to their exceptional oxidase-mimicking capabilities. This work reports the rational design of MnO 2 functionalized magnetic carbon nanotubes (Fe 3 O 4 @C@MnO 2 ) through a multistep synthesis strategy. The magnetic N-doped hollow carbon substrate (Fe 3 O 4 @C) was first synthesized via controlled pyrolysis of FeOOH-coated polydopamine precursors. Subsequent interfacial redox reaction with KMnO 4 enabled the in situ deposition of ultrathin MnO 2 nanosheets on the nanotube substrate, forming a triple-component coaxial architecture. This hollow structure not only facilitates dense MnO 2 deposition but also maintains robust magnetic responsiveness. The obtained Fe 3 O 4 @C@MnO 2 exhibits remarkable enzyme-mimetic capability, catalyzing TMB chromogenic conversion with 0.92-fold enhanced catalytic performance relative to pristine MnO 2 . Systematic mechanistic studies reveal that tannic acid (TA) competitively inhibits ·OH radical generation via MnO 2 -TA complexation, while the carbon interlayer enhances electron transfer efficiency. Owing to the superior enzyme-mimetic performance of Fe 3 O 4 @C@MnO 2 and their inhibition effect by TA, a sensitive colorimetric biosensing assay was fabricated, achieving a TA detection limit of 0.029 μM with a 0.096–4.82 μM linear concentration range. This work exemplifies the synergy of structural engineering and component optimization in designing multifunctional nanozymes, showing potential applications in food quality monitoring, environmental analysis, and point-of-care diagnostics. Graphical
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ADVANCED POWDER TECHNOLOGY
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2025
·
IF 4.2
Xinyu Cai,Yiduo Chen,Dandan Wang,Zhongming Su,Weiting Yang
Here, a biomass-based composite interfacial evaporation system utilizing a Ti-MIL-125-NH 2 /Ag (Ti-MIL-125/Ag; MIL-125/Ag) catalyst was successfully developed, which innovatively achieved synergistic enhancement of photothermal conversion and photocatalytic degradation. Initially, the precisely engineered Ag nanoparticles-modified Ti-MIL-125-NH 2 significantly enhanced visible-light absorption capacity and charge carrier separation efficiency. Furthermore, a Bam@MIL-125/Ag three-dimensional porous interfacial evaporator was constructed using eco-friendly and low-cost bamboo substrate through the sodium alginate gelation. At a height of 1.5 cm, 5 wt% of Ag loading, and a content of 20 mg of Ti-MIL-125/Ag in the Bam@MIL-125 evaporator, the Bam@MIL-125/Ag system under 1 kW·m −2 simulated sunlight demonstrated an evaporation rate of 1.45 kg·m −2 ·h −1 and a solar-to-vapor conversion efficiency of 81.2 %. Notably, leveraging photo-generated free radicals from Ti-MIL-125/Ag, the Bam@MIL-125/Ag evaporator achieved efficient removal (98.67 %) of volatile organic compounds (VOCs) in water through the photocatalytic degradation process. Furthermore, when operating continuously for 56 h in a 3.5 wt% NaCl solution, the Bam@MIL-125/Ag evaporator maintained an evaporation rate above 1.4 kg·m −2 ·h −1 , demonstrating excellent stability, salt resistance, and heavy metal removal capabilities in practical applications. This work provides an innovative strategy for designing MOF-based evaporators that combine high-performance water production with advanced purification functionality.
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CARBOHYDRATE POLYMERS
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2025
·
IF 12.5
Wei Chen,Luyao Ding,Qingbiao Li,Jiahui Shen,Jiajia Zheng,Xiping Li,Zhonglue Hu,Shaohua Jiang,Shanglin Xiao,Yiming Chen
The integration of broadband sound absorption with environmental sustainability remains a key challenge in advanced material design. In this work, an innovative 3D-printed cellulose nanofibril (CNF) architecture with a customizable hierarchical “hole-cavity unity” structure was proposed for highly efficient sound absorption. This multi-scale structural design strategy synergistically coupled the perforated-panel acoustic principles with nanoscale viscous dissipation mechanisms. By leveraging the shear-thinning behavior of CNF inks and the precision control of direct ink writing, the sub-millimeter periodic pore arrays were embedded within the continuous nanofibrous network, enabling programmable structural tunability across multiple pore scales. Systematic regulation of infill ratio and sample thickness yielded high sound absorption coefficients (>0.7) over an ultra-broad frequency range of 1.2–6.3 kHz. Combined with low shrinkage, structural customizability, low density, and rapid environmental degradability, the fully bio-based 3D-printed CNF architectures are expected to offer a promising and sustainable solution for developing next-generation acoustic materials for noise control applications.
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Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Kaiyue Li,Wenhui Li,Ping Huang,Yuquan Zhuo,Ziwen Yang,Bo Wang,Runru Liu,Bing Liu,Enzhu Hou,Shuo Yang,Donglai Han
To address the challenge of achieving simultaneous pollutant removal and real-time monitoring in water remediation, Z-scheme Cu 2 O/g-C 3 N 4 /Ag heterostructures with integrated functionalities for synergistic adsorption, photocatalytic degradation, and surface-enhanced Raman scattering (SERS) detection were developed—hereafter referred to as APS-Hs (adsorption–photocatalysis–SERS heterostructures). Particular emphasis was placed on the Cu 2 O/g-C 3 N 4 /Ag-1.5 APS-Hs, incorporating an optimized 1.5 wt% Ag loading. Optical and electrochemical tests demonstrated that the Cu 2 O/g-C 3 N 4 /Ag-1.5 APS-Hs significantly enhanced charge separation efficiency and reduced charge transfer resistance. Under visible-light irradiation, the Cu 2 O/g-C 3 N 4 /Ag-1.5 APS-Hs attained a removal efficiency of 98.1 % for methyl orange (MO) within 45 min and sustained an efficiency of 84.0 % after three consecutive cycles. XRD and SEM analyses conducted before and after photocatalytic cycling confirmed the composite's outstanding structural and morphological stability. Notably, the Cu 2 O/g-C 3 N 4 /Ag-1.5 APS-Hs demonstrated the highest adsorption capacity (21.34 mg/g) among all samples. Zeta potential measurements revealed a surface charge reversal from + 22.35 mV to −10.29 mV, indicative of strong electrostatic interactions with anionic pollutants. Pseudo-second-order (PSO) kinetic modeling (R 2 =0.971) further established physisorption as the dominant mechanism. Radical trapping experiments verified that the enhanced photocatalytic performance originates from the Z-scheme charge transfer pathway. Additionally, the Cu 2 O/g-C 3 N 4 /Ag-1.5 APS-Hs substrate achieved a SERS enhancement factor of 3.1 × 10 6 and a broadband self-cleaning capability, underscoring its potential for integrated environmental remediation and sensing applications.
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Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Jingzhen Su,Yong Wang,Cong Li,Zhengming He,Kai Zhang,Mingqiang Ren,Qile Wang,Tianxing Chen,Jibran Ali Ghumro,Virender K. Sharma,Hyunook Kim,Yunshu Zhang
Natural seawater contains abundant halide ions that remain largely untapped, while peracetic acid often requires activation to enhance its oxidative properties. The interaction mechanisms between these components have not been thoroughly investigated. This study investigated the activation effect of high concentrations of Cl − and Br⁻ coexisting in seawater on PAA by adding PAA to seawater. Quenching experiments, along with Electron Paramagnetic Resonance (EPR) spectroscopy and UPLC-TQ-MS, were conducted to determine the reaction mechanism and degradation process of SMX. Seawater systems containing 35 ‰ salinity or Br − -PAA systems (0.5 mM Br − ) degraded 100 % SMX within 10 min or 12 min, respectively ( k obs =0.4873 min⁻ 1 or 0.3581 min⁻ 1 ). While the Cl − -PAA system, though slower, still degraded 97.7 % within 180 min (300 mM Cl − , k obs =0.0173 min⁻ 1 ). SMX degradation rates remained above 95 % across the pH range of 3–9, with optimal performance at pH= 3. However, the presence of HA inhibited SMX degradation efficiency by over 40 %. Results indicate that SMX degradation efficiency correlates positively with Cl⁻/Br⁻ content and PAA concentration. The superior removal efficiency stems from activated PAA not only generating HOCl and HOBr via oxygen atom transfer but also further producing 1 O 2 , which dominates the non-selective degradation process. This approach adapts to a wide pH range but is consumed by coexisting HA. The superiority of the Br − -PAA system over Cl − -PAA stems from the strong oxidizing power of HOBr. The oxidation pathways include halogenation, bond cleavage, and hydroxylation. ECOSAR predictions indicated that most transformation products exhibited higher toxicity than the parent SMX compound.
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Catalysts
·
2025
·Vol. 15
·期 9
·819
·
IF 4
Xiang Wang,Xidan Zhang,Yifei Qu,Tian Liu,Juejing Luo,Ting Long,Liang Wu,Chong Tian,Yu Hu
Due to its broad-spectrum antibacterial activity, norfloxacin (NOR) has been widely used over the past few decades. However, the residual NOR in aquatic ecosystems could pose risks to human health from bacteria with resistance genes that potentially cause serious infectious diseases. Herein, a series of bandgap-tunable ZnxCd1−xS (x = 0~1) solid solutions were hydrothermally synthesized and used for NOR photodegradation under visible light and natural sunlight. Benefitting from the suitable bandgap, band structure, and unique tetrapod shape nanostructure, the Zn0.1Cd0.9S solid solution exhibited the best photocatalytic activity, with high degradation efficiencies of 83.23% and 86.28% under visible light and natural sunlight, respectively, within 60 min, which is remarkable among reported ZnxCd1−xS-based photocatalysts and other materials. The in situ reactive-species trapping experiment revealed that holes (h+) were the primary species, and a possible photodegradation mechanism was thus suggested. Moreover, Zn0.1Cd0.9S also exhibited decent reusability and stability after five cycles of experiments. This work provides a comprehensive exploration of the application of bandgap-tunable ZnxCd1−xS solid solutions for NOR photodegradation under visible light and natural sunlight, demonstrating the promising application of as-synthesized Zn0.1Cd0.9S in the photocatalytic degradation of antibiotics.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Yuling Yang,Xiaoli Zeng,Zhixiang Zeng,Linghui Wang,Ping Zhu,Lei Tang,Lijing Zhu
Porous membranes have been fabricated and modified for the separation and purification of wastewater. Although they always suffer from fouling caused by various materials such as oils, dyes, and antibiotics. It is difficult to deal with the boring membrane fouling by one antifouling strategy including hydrophilicity/underwater superoleophobicity. In this work, a synergistic antifouling mechanism combining low oil adhesive underwater superoleophobicity and excellent persulfate advanced oxidation processes (PS-AOPs) performances was developed by facilely loading ZIF-67 catalysts on polypropylene (PP) membranes. The as-prepared composite membranes have stable underwater superoleophobicity and low oil adhesion, which can efficiently separate oil from oil-in-water emulsion and prevent oil adhesion. Moreover, the ZIF-67 catalysts on the composite membranes have excellent degradation performances against various foulants such as methylene blue (MB), tetracycline (TC), and levofloxacin (LVFX), which endow the composite membrane with enhanced antifouling properties during the separation of an oil-in-water emulsion containing MB, TC, and LVFX. The synergistic antifouling mechanism of low oil adhesive underwater superoleophobicity and advanced PS-AOPs provides a facile and efficient strategy for improving the antifouling of the porous membranes in real wastewater purification.
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