JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Hongke Li,Yunlei Zhang,Yiran Liu,Qinghua Xia,Maobin Wei,Wen Guan,Fang Wang,Yao Chen
Production of high value-added 2,5-furandicarboxylic acid (FDCA) from 5-hydroxymethylfurfural (HMF) is a promising alternative to petroleum derivate of terephthalic acid. However, it is still challenging to construct efficient and easily available catalysts suitable for green production process of FDCA under base-free conditions. Herein, a natural clay mineral sepiolite supported AuPd bimetallic catalysts with varied bimetallic ratio were developed and employed for aerobic oxidation of HMF to produce FDCA under alkali-free hydrothermal conditions. Au 1.2 Pd 1 /sepiolite catalyst showed the best catalytic performance with 100% HMF conversion and 98.4% FDCA yield. The key to excellent catalytic performance benefited from synergistic effect between hydroxy-rich surface property of natural sepiolite support and the positive role of AuPd bimetallic sites in the tandem oxidation of aldehyde and hydroxyl groups. The localized electron transfer between AuPd nanoparticles and carriers was investigated by density functional theory calculations. The bimetal promoted the formation of electron-rich interfaces, modulated the local electron redistribution at the interface, and enhanced the adsorption and activation of O 2 , HMF, and the reacted formed intermediates. This work presents a promising strategy for green synthesis of FDCA as well as offers a facile way for the high-value usage of nanofibrous clay mineral.
研究领域:
化学工程
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材料科学
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环境科学
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产品关联
DOI
PubMed
高影响因子
CATALYSIS LETTERS
·
2025
·Vol. 155
·期 5
·1-14
·
IF 2.4
Yao Wenjie,Chen Lei,Wang Yinzhong,Yang Gang
The composite molecular sieve catalysts with long reaction times were successfully synthesized by introducing Cu 2+ /Mn 2+ and ZSM-5 into the initial gel. The catalysts were characterized with XRD, SEM and NH 3 -TPD, and further investigated through the methanol-to-olefin reactions. The results showed that the addition of Cu 2+ caused the crystallinity of ZSM-5/SAPO-34 (Z-S) to increase significantly, but with addition of Mn 2+ , the crystallinity gradually decreased. With the increase of the Mn 2+ /Cu 2+ ratio, the desorption summits of the weak and strong acid sites gradually increased, but the weak acid centres gradually dominated, which is herein thought helped reducing formation of the coke. The designed Cu 0.05 -Mn 0.05 /Z-S samples showed beneficial catalytic performances with a lifetime of 1500 min, a 1.5-fold increase compared with the Cu 0.05 /Z-S, while their selectivities remained exceeding 89%. Graphical
研究领域:
化学工程
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催化材料
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Ying Wen,Zhen Zou,Yitong Li,Danhua Zhang,Ziru Liu,Hong Liu,Xiejia Li,Wei Wu,Liyun Zeng,Qiongyan Zou,Wenjun Yi
The combination of photodynamic therapy (PDT) and gene therapy is a viable therapeutic approach for the management of secondary hyperparathyroidism (SHPT). Nevertheless, the effective delivery of photosensitizers or nucleotide drugs remains a crucial limitation in achieving therapeutic efficacy. MiR-146b-3p directly targeted BCL2, and its overexpression enhanced the antiproliferative, proautophagic, and proapoptotic effects during 5-aminolevulinic acid (5-ALA)-mediated PDT in this study. Herein, we investigated the potential of codelivering 5-ALA and miR-146b-3p to SHPT primary cells via polyamidoamine (PAMAM) and achieving enhanced therapeutic efficacy relative to that of monotreatment. The fabrication of the PAMAM-based 5-ALA and miR-146b-3p dual-delivery system (5-ALA@PAMAM/miR) involved the use of covalent condensation reactions and electrostatic self-assembly. The nanoparticles were characterized by various analytical techniques, including transmission electron microscopy (TEM), zeta potential measurements, and size measurements. Fluorescence and confocal laser scanning microscopy demonstrated a greater degree of cellular uptake of nanoparticles. Moreover, the synthesized nanoparticles considerably enhanced the effectiveness of PDT without systemic toxicity both in vitro and in vivo. Overall, the nanocarrier-gene-photosensitizer coloaded system is a promising platform for the efficient simultaneous delivery of miR-146b-3p and 5-ALA and achieves synergistic therapeutic effects.
研究领域:
医学
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药学
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纳米技术
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分子生物学
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产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2018
·
IF 4.946
Meng Dong,Lei Qin,Jia Xue,Ming Du,Song-Yi Lin,Xian-Bing Xu,Bei-Wei Zhu
Evaluation of free amino acids (FAAs) and nucleotides in various food matrices has been a widely studied topic in recent years. Here, a fast and efficient strategy for the simultaneous analysis of 20 FAAs and six 5′-nucleotides, using stable isotope labeling-liquid chromatography coupled with tandem mass spectrometry (SIL-LC-MS/MS) is proposed. The method was validated with respect to selectivity, linearity, limits of detection (LOD) and quantification (LOQ), recovery, precision, and stability. LOQs of most FFAs were lower than 1 ng/mL, and 5′-nucleotides were in the range of 5–20 ng/mL. FAAs and 5′-nucleotides in ten shiitake mushrooms from different cultivate areas were further analyzed. Results showed that the contents of cytidine 5′-monophosphate, adenosine 5′-monophosphate, lysine, threonine, arginine were significantly different. Principal component analysis showed clear discrimination of origins, seasons and species. Thus, the proposed method is suitable for the fast discrimination of species and geographical origins of shiitake mushrooms.
研究领域:
食品科学
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分析化学
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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2025
·
IF 11.3
Zuhao Chen,Yongyou Hu,Guanglei Qiu,Donghui Liang,Jianhua Cheng,Yuancai Chen,Guobin Wang,Xiaoqiang Zhu,Jieyun Xie
Inoculating functional bacterial strains is a cost-effective strategy for enhancing treatment of anaerobic digestion liquids in swine wastewater. This study systematically evaluated inoculation of heterotrophic nitrification aerobic denitrification strain Acinetobacter indicus CZH-5 in an internal circulation airlift zeolite sphere-based sequencing batch reactor (IR) for aerobic removal of nitrogen (N), phosphorus (P), and tetracycline (TEC). Inoculation with CZH-5 promoted secretion of quorum sensing signaling molecules, specifically N-acyl-homoserine lactones (C6-HSL and C10-HSL). These signaling molecules enhance quorum sensing and reinforce cooperation among functional bacteria. Under optimal conditions, average removal efficiencies of total nitrogen, total phosphate, and TEC were 92.8%, 88.4%, and 93.1%, respectively. The removal performance in IR exceeded that of the control by 26%–71%. N removal involved complete nitrification-denitrification, while accumulated P was transformed into phosphate monoesters within biofilm. Metagenomic analysis identified Thauera and Acinetobacter as the dominant genera, and Acinetobacter indicus as predominant species. Inoculation enhanced microbial richness and diversity to improve system operational stability. The abundance of functional genes associated with N, P, and TEC transformations significantly increased compared to the control. This study aimed to investigate the characteristics and mechanisms of inoculating a heterotrophic nitrification aerobic denitrification strain into an aerated biofilm system for swine wastewater remediation.
研究领域:
环境微生物学
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废水处理工程
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分子生态学
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产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2025
·
IF 7.7
Shenghui Xia,Chen Chen,Jinhong Liu,Yu Zhang,Hui Zhang,Thomas Thundat,Ajit Khosla
Nitrogen dioxide (NO 2 ) is a highly toxic air pollutant that endangers human health, environmental sustainability, and ecosystems. To address this issue, we designed an inorganic heterogeneous interface by integrating ZSM-5 molecular sieves with MXene via a facile synthesis route. This unique architecture synergizes the dual cross-channel framework of ZSM-5 and the high electrical conductivity and abundant surface functional groups of MXene. This combination greatly enhances electron transfer kinetics, interfacial NO 2 adsorption, and gas sensing properties. The optimized MXene/ZSM-5 nanocomposite achieves an ultra-low NO 2 detection limit of 1 ppm. Its response is 79.78 % higher than that of original MXene. The nanocomposite also exhibits excellent stability and significant anti-interference properties. Correlation studies confirm consistent performance across humidity and atmospheric conditions. Density functional theory (DFT) calculations elucidated the charge transfer pathways and adsorption mechanisms at the atomic level that enhance sensitivity. By pioneering the MXene/ZSM-5 interface and systematically investigating its gas interaction kinetics, this work provides fundamental insights for designing next-generation MXene-based gas sensors.
研究领域:
材料科学
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纳米科技
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传感技术
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环境化学
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表面科学
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产品关联
DOI
高影响因子
Asia-Pacific Journal of Chemical Engineering
·
2025
·
IF 1.6
Shuai Yan,Xin Pu,Zhiyong Qi,Xiaoran Zhang,Xiaoyu Zhou,Xin Han,Lei Ye,Xinglong Qin,Jichang Liu
m -Cresol and p -cresol cannot be effectively separated using conventional distillation because of their proximate boiling temperatures. This study investigated the adsorption separation of cresol using the short b -axis ZSM-5 synthesized via a urea-assisted method. In contrast to the ellipsoidal HZSM-5, which was approximately 1 μm in length, the thickness of the sheet-like HZSM-5 decreased to 36 nm, resulting in an increase in total cresol adsorption capacity from 76 to 122 mg/g. Applying the CLD method, an increase in the TEOS:HZSM-5 ratio from 0 to 0.83 resulted in the increase in p -cresol adsorption capacity from 69 to 106 mg/g, while m -cresol adsorption capacity dropped from 53 to 12 mg/g. The adsorption selectivity significantly rose from 1.3 to 9.7. The adsorption kinetics and isotherms demonstrated that the process was exothermic for p -cresol and endothermic for m -cresol.
研究领域:
材料化学
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物理化学
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分离科学
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催化化学
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纳米材料
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产品关联
DOI
高影响因子
Small
·
2021
·Vol. 17
·期 46
·2103374
·
IF 13.281
Xiaowei Yu,Kaikai Liu,Hongyue Zhang,Bolun Wang,Wenyan Ma,Jiyang Li,Jihong Yu
Multilevel luminescence materials have aroused wide attention for their advanced anti-counterfeiting abilities. However, various complicated stimuli factors involved in multilevel luminescence anti-counterfeiting (MlLA) limit the practical applications of such materials. Herein, carbon dots (CDs) are in situ introduced into Eu-substituted AlPO 4 -5 zeolite (named CDs@EuAPO-5) via a solvent-free thermal crystallization method, which exhibits triple emissions including pink fluorescence mainly associated with Eu 3+ in the zeolite framework, blue fluorescence and green room temperature phosphorescence (RTP) associated with CDs. CDs are uniformly embedded in the EuAPO-5 zeolite matrix. Such composite displays excellent photo-, thermo-, and solvent resistance, as well as long-term storage-stability. Moreover, the triple emissions of the composite only need two kinds of common excitation lights to trigger, without involving other complicated stimuli. A triple-level luminescence anti-counterfeiting (TlLA) label has been built, realizing facile, quick, and advanced luminescence anti-counterfeiting that is hard to copy.
研究领域:
材料科学
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光学
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防伪技术
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2021
·
IF 5.909
Xu Duan,Jian Yang,Guang Hu,Chen Yang,Yangfan Chen,Qingcai Liu,Shan Ren,Jiangling Li
In this work, based on a type of energy band engineering strategy as calcination , TiO 2 /ZSM-5 hybrids for photodegradation of methyl orange (MO) in water under UV light have been developed via a facile solid state diffusion method. Effects of varied calcination temperatures on TiO 2 /ZSM-5 hybrids have been systematically characterized including XRD , FT-IR, SEM, TEM , EDX mapping, BET, PL , EIS , UV–vis DRS, active species trapping experiments and Mott-Schottky curves. It was found that the calcination temperature influenced photocatalytic activity , typically on physicochemical properties of materials and adjustment for the energy gap and band position of TiO 2 . The XRD analysis revealed that hybridization of ZSM-5 kept the crystal phase of TiO 2 as anatase unchanged with the high-rising calcined temperature. The optimum sample calcined at 450 °C named as Z-T (450) presented nearly 99% degradation rate for MO, owing to optimal uniform distribution, highest specific surface area and best charge separation/transfer efficiency. The FT-IR comparison result that the functional groups and peak strength of the used catalyst were alike as before, showed the stability of photocatalyst . Adoption of calcination strategy does provide not only a clean, low-cost and highly efficient path to approach the complete degradation of azo dyes , but also a chance for photocatalytic technology to fulfill the implementation in industrial applications.
研究领域:
材料科学
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环境化学
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物理化学
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催化化学
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纳米材料
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光催化技术
✓ 已验证
DOI
高影响因子
CATALYSIS LETTERS
·
2022
·Vol. 153
·期 6
·1743-1755
·
IF 2.936
Zhou Yi,Yao Tiantian,Tan Yawen,Chen Yongbo,Chen Zhiyue,Zhang Jin
In this study, a novel composite DUT-5/Bi 2 MoO 6 (DUT-5/BMO) photocatalytic material was prepared by two-step hydrothermal method for the first time. The materials were characterized by SEM, XPS, etc. Studies have shown that material with a new n–n heterojunction structure can quickly degrade tetracycline. DUT-5 was embedded between the Bi 2 MoO 6 nanosheets, which promotes the photogenerated electrons from DUT-5 flows to Bi 2 MoO 6 , thereby reducing the recombination rate of photo-generated electron–hole pairs. The BET results show that the composite material has a larger specific surface area than the monomer Bi 2 MoO 6 . It can provide more active sites. After 60 min of visible light irradiation, the photocatalytic degradation efficiency of TC with 15% DUT-5/BMO reached 84.22%, which is 5.37 and 2.12 times higher than that of pure DUT-5 and Bi 2 MoO 6 , ·O 2 − and h + were the main active substances in the photocatalysis process. In addition, DUT-5/BMO composites show excellent stability and recyclability in 5 times cyclic experiments. In conclusion, DUT-5/BMO has good stability in the environment, and can be used for environmental remediation without pollution. Graphical
研究领域:
环境科学
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材料科学
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化学工程
·
纳米技术
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DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Dongyang Liu,Yuen Bai,Dongdong Chen,Nan Zhang,Liang Zhao,Jinsen Gao,Chunming Xu
This study investigates the co-cracking of n-hexane and 1-hexene, utilizing 1-hexene as an olefinic initiator to improve light olefin yields. Experimental investigations, kinetic analyses, and density functional theory calculations (DFT) were used to systematically explore cracking performance, interactions, and mechanisms for co-feeding. Comparied with single feeding of n-hexane, leading to higher light olefin yields (increased from 35.77 wt% to 58.61 wt%) when the olefin content is 20 wt%. Kinetic analysis revealed a shift from protolytic to hydrogen transfer cracking pathway when 1-hexene content exceeded 13.6 wt%, with the maximum cracking rate (13.12 h −1 ) constant at 20 wt% olefin content. DFT calculations showed a lower energy barrier for hydrogen transfer cracking between n-hexane and 1-hexene, compared to n-hexane cracking alone. Therefore, a co-cracking mechanism was proposed, involving paraffin activation through carbocation intermediates generated by olefin, followed by β-cracking to generated light olefins and carbenium ion regeneration, establishing a framework for paraffin-olefin co-conversion.
研究领域:
催化化学
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石油炼制
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反应动力学
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理论化学
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材料化学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2019
·
IF 3.131
Feng Gao,Xinlei Wu,Die Wu,Jianxing Yu,Jun Yao,Qi Qi,Zhihai Cao,Qinmin Cui,Yifang Mi
This work reports the synthesis of novel degradable magnetic temperature- and redox-responsive polymer/Fe 3 O 4 nanocomposite nanogels (NCGs) through inverse miniemulsion polymerization and their potential application as nanocarriers for controlled drug delivery. Surface of Fe 3 O 4 magnetic nanoparticles (MNPs) were vinyl-modified with 2-isocyanatoethyl methacrylate . Poly( N -vinylcaprolactam) (PNVCL)/Fe 3 O 4 NCGs were prepared via inverse miniemulsion polymerization by using a disulfide-containing cross-linker. The Fe 3 O 4 MNPs were chemically attached to the polymer matrix of NCGs, offering a good structural integrity of NCGs in aqueous systems. The PNVCL/Fe 3 O 4 NCGs not only inherited the good superparamagnetism of Fe 3 O 4 MNPs, but also displayed a reversible temperature-responsiveness as well as marked redox-responsiveness. The release behavior of a model anticancer drug 5-fluorouracil from the PNVCL/Fe 3 O 4 NCGs could be conveniently tuned by the external temperature, redox condition of media, or their combination. The prepared PNVCL/Fe 3 O 4 NCGs displayed a low cytotoxicity, holding a great potential in functioning as magnetic guiding nanocarriers for controlled drug delivery.
研究领域:
生物材料学
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药物递送系统
·
高分子化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）