Digest Journal of Nanomaterials and Biostructures最新文献

{"title":"MoS2-TA@Cu2+ Nanomaterials Synergistically Modified Polyethersulfone Ultrafiltration Membrane: Enhanced Anti-Scaling and Antibacterial Properties for High-hardness Karst Water Treatment","authors":"Miliang Zhang","doi":"10.31083/djnb51672","DOIUrl":"https://doi.org/10.31083/djnb51672","url":null,"abstract":"Membrane fouling, especially the composite pollution caused by inorganic scaling and biological fouling, is a key challenge in the treatment of underground karst water with high salinity and high hardness. This study reports a polyethersulfone (PES) ultrafiltration (UF) membrane modified by molybdenum disulfide-tannic acid@copper ions (MoS2-TA@Cu2+) bionanomaterial. By blending MoS2-TA@Cu2+ nanoparticles into the PES matrix, the membrane's structure and comprehensive properties were systematically controlled. Scanning electron microscopy (SEM) and static water contact angle measurements were employed to characterize the morphology and surface properties of the membranes. Characterization analysis confirmed that the hydrophilicity of the modified membrane was enhanced (the water contact angle [WCA] was reduced from 69° to 56°), and it showed high antibacterial properties (the antibacterial rate against Escherichia coli [E. coli] reached 95%). The core contribution of this study is to systematically elucidate the tunable trade-off mechanism between key membrane properties dominated by nanoparticle loading. Specifically, a loading capacity of 10 g/m2 achieved optimal anti-fouling stability, with a flux recovery rate (FRR) as high as 81.5% (40.5% higher than that of the original membrane). In contrast, a loading capacity of 15 g/m2 showed the superior permeation and separation performance, with a turbidity removal rate of 92.9% in actual karst water and a silt density index (SDI) reduction value of 5.3, fully meeting the stringent requirements of reverse osmosis pretreatment. Both static and dynamic anti-fouling experiments confirmed its excellent performance, with the CaCO3 scaling amount reduced by up to 65.2%. This study provides an effective strategy for the development of multifunctional UF membranes that can cope with complex water quality challenges by revealing the inherent trade-off between separation efficiency and anti-fouling stability. This paper provides the key theoretical basis and practical guidance for the precise design of high-performance multifunctional membranes.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://storage.imrpress.com/IMR/2031299835475492900/application/1842-3582-21-1-51672.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147879863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The influence of TiO2 coating on the coloring and NIR properties of yellow pigments","authors":"J.H. Lu, Q. Shen, M. H. Xu, J. R. Chu, X. Ling","doi":"10.15251/djnb.2025.204.1587","DOIUrl":"https://doi.org/10.15251/djnb.2025.204.1587","url":null,"abstract":"In this paper, TiO2 was coated on yellow pigment (FeOOH) to prepare coated pigment (FTx). The test results from X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), transmission electron microscopy (TEM) and (Kelvin probe force microscopy) KPFM show that the surface of FeOOH has been coated with TiO2. It is noteworthy that there is electron transfer between pigment interfaces. In addition, the amount of TiO2 has a significant impact on the coloration of FeOOH and its near-infrared reflectance (NIR). The NIR of FT16 (L* = 84.75, a* = 7.5, b* = 25.13) reaches 81.37%, much higher than the 61.07% of FeOOH pigment (L* = 70.33, a* = 12.91, b* = 33.87). The TiO₂ coating amount shows exponential correlations with both chromaticity parameters and reflectance, while a strong linear relationship exists between NIR and L*. The application of TiO₂ coating improves the pigment’s brightness and its reflectivity in the near-infrared range, suggesting its potential as a functional cooling pigment for radiative control applications.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 4","pages":"1587-1598"},"PeriodicalIF":0.0,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2025.204.1587","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147905539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advanced biosensor for dopamine detection based on polyglutamic acid modified electrode","authors":"C. Yao, Yalin Zhang, Shasha Zhang, Bingjie Shi, Jie Dang, Chongbo Zhao, Qiang Li, Huaiyong Zhang, Rong Wang","doi":"10.15251/djnb.2025.204.1395","DOIUrl":"https://doi.org/10.15251/djnb.2025.204.1395","url":null,"abstract":"Rapid and accurate dopamine (DA) detection is of great significance in clinical practice. In this study, polyglutamic acid modified graphite electrode (PGA/GE) was fabricated via onestep electrodeposition, and was employed to construct electrochemical sensor for DA detection. By systematic optimization, PGA/GE based sensor showed good performance with a wide linear range (0.5-120 μM) and especially a low limit of detection (0.0714 μM). Besides, PGA/GE base sensor presented many merits such as low cost, excellent reproducibility and anti-interference ability, allowing actual urine samples detection with a favorable recovery rate. So, PGA/GE based sensor has good application prospect in clinical diagnosis.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 4","pages":"1395-1406"},"PeriodicalIF":0.0,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2025.204.1395","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147905531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of superhydrophobic CNF/PVA composite aerogel for oil/water separation","authors":"Yunhua Xu, Yangyang Han, Hua Li, Jian Yang, Baoqin Fu, Haifeng Zhao, Lizheng Sha, Tianzhi Yuan","doi":"10.15251/djnb.2025.204.1297","DOIUrl":"https://doi.org/10.15251/djnb.2025.204.1297","url":null,"abstract":"Aerogel has received increasing attention in oily wastewater treatment due to its high porosity, low density and good absorption capacity. In this work, the biodegradable bleached softwood pulp was used to prepare three distinct cellulose nanofibrils via high-pressure homogenization (CNF), integrating enzymatic pretreatment and TEMPO-oxidation with high-pressure homogenization (ECNF and TCNF), and the corresponding CNF aerogels were fabricated and hydrophobically modified by stearoyl chloride (SAC). Subsequently, the CNF optimized based on oil absorption was crosslinked with polyvinyl alcohol (PVA) to prepare CNF/PVA composite aerogel with good physical properties. The results showed that the hydrophobically modified SAC-TCNF/PVA composite aerogel exhibited ultralow density (15.2 mg·cm-3), ultrahigh porosity (99.0%) and superhydrophobicity (with a water contact angle of 150.4°) when the ratio of TCNF to PVA was 1:0.5. Remarkably, the SAC-TCNF/PVA composite aerogel displayed high elastic recovery rate of 59.5% after five rebound tests, high cyclic oil absorption capacity of 31.6 g·g-1 in the fifth cycle, which was the 69.7% of the initial oil absorption capacity, demonstrating its excellent physical properties and recyclability in oil-water separation.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 4","pages":"1297-1310"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2025.204.1297","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147899548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sol-gel derived Zr2ZnC photocatalyst: a novel ternary carbide approach for visible-light-driven degradation of organic pollutants","authors":"Arifa Akram, Nimra Nadeem, Muhammad Zubair, Asim Jilani, Ahmad Wafiq Aboelnasr, Hussameldin Ibrahim, Hafiz T. Ali, Muhammad Zahid","doi":"10.15251/djnb.2025.204.1345","DOIUrl":"https://doi.org/10.15251/djnb.2025.204.1345","url":null,"abstract":"The Zr2ZnC was synthesized via sol-gel methodology and used to study sunlight driven degradation of organic pollutant, Rhodamine B (RhB). The Zr2ZnC was characterized by FTIR, XRD, and SEM/EDX techniques. The Zr2ZnC revealed high degradation efficiency i.e. ~92% dye concentration (50 ppm), catalyst loading (25mg), pH (5), and oxidant dose (15 mM) within 90 minutes. Different scavengers were used to validate the active radical species and observed that OH• contributed the most. The kinetic study revealed that degradation followed first-order kinetics model. The optimization study was conducted through response surface methodology (RSM). Ternary carbides can be used as highperforming photocatalysts.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 4","pages":"1345-1361"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2025.204.1345","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147902263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bimetallic phosphide fabricated by topological transformation of CoV-layered double hydroxide for efficient electrooxidation of benzyl alcohol","authors":"Yanqi Xu, Bin Ding, Bingdang Wu","doi":"10.15251/djnb.2025.204.1285","DOIUrl":"https://doi.org/10.15251/djnb.2025.204.1285","url":null,"abstract":"The selective electrooxidation of benzyl alcohol (BA) to benzoic acid (BAC) requires the development of efficient and cost-optimized electrocatalysts. Herein, cobalt-vanadium layered double hydroxide (CoV-LDH) was prepared by co-precipitation, and subsequently transformed into cobalt-vanadium bimetallic phosphides (P-CoV) through a topological transformation process using sodium hypophosphite as the phosphorus source. Structural and morphological analyses revealed that P-CoV retained the two-dimensional layered architecture of the CoV-LDH precursor, offering more electrochemically active surface area and enhancing electronic conductivity. Electrochemical evaluation demonstrated that under the optimal conditions (initial potential of 0.5 V vs. Ag/AgCl at 25℃), P-CoV achieved a BA conversion of 61.60% and a BAC selectivity of 82.67% for 9 h. These results highlight the promising application of non-noble metal bimetallic phosphides in the energy-efficient and selective electrooxidation of aromatic alcohols under mild operating conditions.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 4","pages":"1285-1296"},"PeriodicalIF":0.0,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2025.204.1285","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147918824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Controlled synthesis and enhanced photocatalytic performance of hexagonal prism - shaped TiO2 via oxalic acid regulation","authors":"Xiao‐Yong Fang, Zhonglu Guo, Chunyan Wang, Xinkun Chen, X. N., China Industrial Control Systems Cyber Emergency Reponse Team, Beijing 100043, China, Wanli Liu, Jiaqing Chen","doi":"10.15251/djnb.2025.204.1235","DOIUrl":"https://doi.org/10.15251/djnb.2025.204.1235","url":null,"abstract":"The development of eco-friendly strategies for precise TiO2 photocatalyst control remains critical for environmental remediation. Herein, oxalic acid (OA) is innovatively employed as a multiple-function modulator to synergistically regulate the crystalline phase, morphology, and size of TiO2, achieving improved photocatalytic performance. With increasing OA concentration, the TiO2 particle size decreased remarkably from the micrometer scale (2.58 μm) to the sub-micrometer scale (0.60 μm). At optimized OA concentration (S25), TiO2 exhibits the minimized particle sizes, maximized specific surface area with increased active sites, and reduced charge recombination. Photocatalytic degradation rates for methyl orange (MO) and tetracycline (TC) under simulated sunlight reveal exceptional performance: S25 achieves 100% MO degradation in 30 min and 100% TC degradation in 10 min, with rate constants 4.15× and 1.40× higher than OA-free samples, respectively. This work provides a green pathway for the scalable preparation of highperformance TiO2 photocatalysts with controllable structures, demonstrating significant application potential for industrial wastewater purification.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 4","pages":"1235-1246"},"PeriodicalIF":0.0,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2025.204.1235","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147910088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-shell microencapsulation enhances nucleopolyhedrovirus stability and insecticidal activity","authors":"B. H. Zhang, Y. Y. Zhan, M. H. Gao, Z. H. Jia, C. Y. Li, D. Chu, Q. Li, G. L. Zheng","doi":"10.15251/djnb.2025.203.823","DOIUrl":"https://doi.org/10.15251/djnb.2025.203.823","url":null,"abstract":"Insect viruses are a type of environmentally friendly and safe microbial insecticide. However, they are prone to deactivation in the environment due to exposure to light. In this study, to enhance the insecticidal activity and UV resistance of the Spodoptera exigua nucleopolyhedrovirus (SeNPV), chitosan and polydopamine were selected as embedding materials, A chitosan-dopamine SeNPV (CS / PDA-NPV) microcapsule was successfully developed, and characterized using scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR) and Zeta potential analysis. The results show that CS / PDA-NPV microcapsule exhibit a well spherical morphology with a particle size range of 3-5μm. Compared to free SeNPV viruses, CS / PDA-NPV microcapsule exhibit enhanced thermal stability. After UV treatment, the insecticidal activity of the virus microcapsule was 1.5 times higher than that of the non-encapsulated viruses, demonstrating that the chitosan-polydopamine bilayer structure provides effective UV shielding for SeNPV.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 3","pages":"823-830"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147917720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CdS/activated carbon composite for the photocatalysis degradation of tetracycline hydrochloride","authors":"Y. X. Liu, X. R. Zhu, X. Sun, W. Yan, J. Xu","doi":"10.15251/djnb.2025.203.843","DOIUrl":"https://doi.org/10.15251/djnb.2025.203.843","url":null,"abstract":"The cocatalyst is crucial in promoting charge separation and surface reaction kinetics in the photocatalytic process. In this study, a novel photocatalyst was prepared via a one-step hydrothermal approach, integrating the commonly used semiconductor material cadmium sulfide with activated carbon (AC), forming a Schottky junction between them. The interfacial C-S bond between CdS and AC serves as an atomic-scale electron transfer pathway, lowering the interfacial charge transfer barrier. The synergistic effect of the Schottky junction and the C-S chemical bond improves the efficiency of e-h pair separation and effectively optimizes charge transfer dynamics. Moreover, the specific surface area of activated carbon (AC) is high, which gives the composite a certain adsorption capacity. Experimental results indicate that when the concentration of TCH is 20 mg/L, the photocatalytic degradation effect of CdS/AC(4:1) was the best. The degradation rate of only 5mg could reach 58.67% in 20 min, far exceeding that of CdS. After 60 minutes, the degradation rate was 77.74%, higher than 60.20% of CdS. This study provides reliable guidance for the design and preparation of low-cost and efficient CdS cocatalysts, and opens up a new general solution and possibility for addressing the environmental pollution resulting from the misuse of antibiotics.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 3","pages":"843-857"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-emission ratiometric fluorescence sensor based on CeO2 quantum dots for the rapid detection of norfloxacin","authors":"M. M. Zhang, F. Peng, Beibei Hu, Yang Lian, H. M. Wang, H. L. Wang","doi":"10.15251/djnb.2025.203.753","DOIUrl":"https://doi.org/10.15251/djnb.2025.203.753","url":null,"abstract":"The misuse and overuse of antibiotics brings serious pollution to the environment. Norfloxacin (NOR), one of the broad-spectrum antibiotics, is extensively used in treatment of human and animal diseases, which results in the continuous accumulation in the environment. Therefore, it is significance to develop a simple and efficient method for detecting norfloxacin. In this study, cerium dioxide quantum dots (CeO2 QDs) with the characteristics of uniform size and excellent fluorescence emission property were synthesized by using the sol-gel method. A fast and ultrasensitive dual-emission ratiometric fluorescent sensor based on the CeO2 QDs fluorescence was fabricated for the determination of norfloxacin, with a wide linear range (1.00-1000 nM), low detection limit of 0.65 nM, and fast response time (60 s). Furthermore, this ratiometric sensor has been applied for the determination of norfloxacin in environmental water samples with the recovery ranging from 95.54% to 101.04%, and the relative standard deviation 1.09% to 2.94%. these results are consistent with the results analyzed by the high-performance liquid chromatography (HPLC). Therefore, this as-presented sensor has a potential application in the determination of norfloxacin in environmental water samples.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"20 3","pages":"753-767"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://doi.org/10.15251/djnb.2025.203.753","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147896361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}