ACS Sustainable Chemistry & Engineering
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2025
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IF 7.3
Jiyang Zuo,Tao Yang,Chen Lin,Hongxia Deng,Shanshan Gu,Fei Liu,Zhisen Shen,Jin Zhu,Jinggang Wang
This work provides an in-depth molecular structure design strategy for developing high-barrier polymer packaging films. A series of high-performance PPDThF copolyesters were prepared by utilizing the unique crystallization ability of poly(propylene 2,5-thiophenedicarboxylate) (PPThF), as well as a long-chain dicarboxylic acid, namely dodecanedioic acid (DA). The incorporation of a polyethylene-like polyester structure from DA into the main chain of polymers has been found to be random copolymerization, leading to limited crystallizable sequence lengths. The effects of the long-chain dicarboxylic acids on the thermal transition, aggregation structure, gas barrier properties, and optical properties of the copolyester PPDThF copolyesters were investigated. The results demonstrate that PPDThF-10 combines the benefits of conventional thermoplastics, like high strength (>30 MPa) and high modulus (>0.6 GPa), with the mechanical and physical characteristics of chemically cross-linked rubber, including high extensibility (ε = 730%) and toughness (134 MJ/m–3). The results obtained so far demonstrate that thiophene-based copolyesters can be used in food packaging applications.
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JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2024
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IF 2
Jian Hong,Qiang Wang,Biao Liu,Tao Li,Dingkai Hu,Furqan Muhammad
Isothermal vapor–liquid equilibrium (VLE) data for valuable and thermally sensitive lavender essential oil systems, linalool + linalyl acetate, linalool + α-terpineol, and α-terpineol + linalyl acetate, were determined at 363.15, 378.15, and 393.15 K, respectively, by utilizing headspace gas chromatography (HSGC). The Wilson, NRTL, and UNIQUAC models were used to regressively fit experimental VLE data, demonstrating satisfactory agreement between the models and data. The vapor compositions were analyzed at different temperatures using the Wilson, NRTL, and UNIQUAC models, and the maximum absolute average deviation (AAD) values were 0.72, 0.78, and 0.80%, respectively, and the highest mean relative deviation (MRD) among these three models was 1.62, 1.57, and 1.65%, respectively. Furthermore, AMS software acquired the optimum intermolecular spatial arrangement and binding energy.
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JOURNAL OF CHROMATOGRAPHY A
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2024
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IF 3.8
Huanhuan Liu,Liushan Jiang,Shiyu Huang,Jingwen Niu,Yue Zhang,Jiawei Liao,Guangyu Dong,Denghao Song,Qingxiang Zhou
As a typical kind of persistent organic pollutants, polychlorinated biphenyls (PCBs) may cause great harm to human health. Recently, MXene has gained considerable attention due to its specific properties for the removal of pollutants by various principles. Present work reported a new functionalized MXene material, NH 2− MIL-88 modified magnetic Nb 2 CT X , for developing a facile and efficient magnetic solid phase extraction method for enrichment and sensitive detection of PCBs in environmental water samples. The adsorption mechanism and parameters that may impact the extraction efficiencies of PCBs were explored. Gas chromatography-tandem mass spectrometry was utilized to detect the enriched PCBs. The results demonstrated that nine PCBs possessed good linearities in the range of 0.005 ∼ 50 μg L -1 and 0.005∼ 40 μg L -1 , respectively. The detection limits of PCBs were over range of 0.06 - 0.28 ng L -1 . The adsorption of PCBs on NH 2− MIL-88 modified magnetic Nb 2 CT X followed quasi-second-order kinetic and Langmuir adsorption isotherm models. The fortified recoveries in real water samples ranged from 87.6 % to103.4 % (n = 3), which confirmed that the established method owned merits such as simplicity, rapidness, robustness, and high extraction efficiencies, and might be utilized for the detection of trace PCBs in environmental water samples.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Ping Yuan,Weigang Zhang,Mingrui Yang,Yun Chen,Zhifei Yang,Zheng Zhao,Lingling Zhang
The emergence of treatment approaches that integrate conventional phototherapy with additional adjuvant treatments has garnered considerable interest. In this study, we proposed a complex utilizing Fe and polydopamine as a carrier, co-loaded with the nitric oxide initiator L-arginine (L-Arg) and the photosensitizer indocyanine green (ICG), as a potential strategy for the “photothermal/photodynamic/Chemodynamic/nitric oxide gas therapy” of osteosarcoma. Nanoparticles have the ability to undergo degradation within the mildly acidic conditions present in the tumor microenvironment. Consequently, the resulting release of Fe ions facilitates the consumption of hydrogen peroxide through Fenton/Fenton-like reactions, thereby generating hydroxyl radicals (•OH) that possess potent cytotoxic properties. L-Arg can also be catalyzed by reactive oxygen species (ROS) or NO synthase overexpressed in cancer cells to generate NO, which is not only used for gas therapy (GT), but also as a biological messenger to regulate vasodilation to relieve tumor hypoxia. More importantly, the addition of low-dose near-infrared laser can not only promote the efficiency of the above two reactions, but also achieve PTT/PDT and obtain good synergistic tumor treatment effects. The anti-tumor efficacy of nanoparticles was verified in the 143B mouse osteosarcoma model. This “PTT/PDT/CDT/GT” strategy expands bone tumor treatment options through nanoparticle-mediated enhanced therapy.
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ACS ES&T Water
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2025
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IF 4.3
Biao Zhang,Zhanjun Zhu,Qian Song,Xiangying Zeng,Shengjun Yang,Yi Liang,Zhiqiang Yu
With the rapid development of shale gas exploitation, large quantities of drilling cuttings (DCs) and flowback waters (FWs) laden with organics are produced. These organics, whose chemical compositions are largely unknown, could be toxic to organisms in the receiving environment. This study collected two time series of DCs and FWs from different shale gas exploitation platforms in the Sichuan Basin, China. We developed a nontarget analytical method to identify organic additives as well as their degradation products in these DCs and FWs and observed variable compositions and levels of organic additives in the DCs and FWs. The variation could be ascribed to the varied geological shale formations and unique drilling techniques. Alcohol ethoxylates (AEOs) and quaternary ammonium compounds (QACs) were identified as the main additives in the DCs from water-based drilling cutting with AEOs and alkylbenzenesulfonate in the related FWs. Meanwhile, nonylphenol ethoxylates (NPEOs) and QACs were the predominant surfactants in oil-based drilling cutting, with polyethylene glycols (PEGs) and AEOs dominating in related FWs. Carboxylated products of PEGs, polypropylene glycols, NPEOs, and octylphenol ethoxylates were widely identified in DCs and FWs, evincing biotic/abiotic transformation and chain-shortening of these surfactants downhole.
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Environmental Progress & Sustainable Energy
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2025
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IF 2.3
Zhengxiong Jiang,Zhitao Han
With the aim to develop wet denitration process for marine application, it is still challenging to simultaneously achieve high-efficiency NO x removal from flue gas and low nitrate concentration in scrubbed solution. Herein a novel two-step method was proposed to solve this issue: phosphate buffer solution (PBS) with organic additive was used to absorb NO x efficiently from flue gas, and in next step, Na 2 SO 3 as a reductant was added in the scrubbed solution to reduce NO x off-line. Five typical organic additives were chosen to compose with PBS. The tetrabutylammonium bromide and phosphate buffer solution (TBAB/PBS) composite solution exhibited superior NO x absorption performance. Furthermore, the effects of TBAB concentration, NO x oxidation degree, solution pH, temperature and O 2 concentration on NO x absorption performance of TBAB/PBS composite solution were investigated systematically, and a high NO x absorption efficiency of >90% could be achieved. It was mainly attributed to a physical complex between PBS and NO 2 , N O 3 − $$ N{O}_3^{-} $$ , N O 2 − $$ N{O}_2^{-} $$ , together with a mass transfer enhancement by TBAB. A long-run test showed that nitrate concentration was much lower than the limit value of IMO. Cyclic absorption and regeneration tests confirmed that Na 2 SO 3 could effectively regenerate the scrubbed solution in the absence of O 2 .
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ANALYTICAL CHEMISTRY
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2024
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IF 6.7
Zhuoru Huang,Wenjian Yang,Yanchi Zhang,Jiaxi Yin,Xianyou Sun,Jiaying Sun,Guangqing Ren,Shichao Tian,Ping Wang,Hao Wan
Hydrogen has been widely used in industrial and commercial applications as a carbon-free, efficient energy source. Due to the high flammability and explosion risk of hydrogen–air mixtures, it is vital to develop sensors featuring fast-responding and high sensitivity for hydrogen leakage detection. This paper presents a miniaturized electrochemical gas sensor by elaborately establishing a nanocomposite and thin ionic liquid interface for highly sensitive and rapid electrochemical detection of hydrogen, in which a remarkable response time and recovery time of approximately 6 s was achieved at room temperature. A screen-printed carbon electrode was modified with a reduced graphene oxide–carbon nanotube (rGO-CNT) hybrid and platinum–palladium (Pt–Pd) bimetallic nanoparticles to realize high sensitivity. To achieve miniaturization and high stability of the sensor, a thin-film room-temperature ionic liquid (RTIL) was employed as the electrolyte with a significantly decreased response time. The fast-responding hydrogen sensor demonstrates excellent performance with high sensitivity, linearity, and repeatability at concentrations below the lower explosive limit of 4 vol %. The engineered high-performance interface and gas sensor provide a promising and effective strategy for gas sensor design and rapid hazardous gas monitoring.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Jiahui He,Zhenlong Li,Jueying Chen,Jiaxin Wang,Lipeng Qiao,Baolin Guo,Juan Hu
It is still challenging to design stimuli-responsive smart hydrogel dressing to promote bacteria-infected diabetic wound healing from the whole healing stage by intelligently responding to external stimuli or wound microenvironment. In addition, nitric oxide (NO) and oxygen (O 2 ) have been shown to accelerate diabetic wound healing by promoting angiogenesis and alleviating hypoxia. A series of NIR/glucose stimuli-responsive multifunctional smart hydrogels with NO/O 2 dual gas-releasing properties was designed based on N-carboxyethyl chitosan-grafted-phenylboronic acid (CECP), oxidized dextran (OD), ε-polylysine (EPL)-coated manganese dioxide (EMn), and β-cyclodextrin-reduced graphene oxide/N, N’-di-sec-butyl-N, N’-dinitroso-1,4-phenylenediamine (rGB) via dual dynamic crosslinking to promote bacteria-infected diabetic wound healing. The added rGB and EMn as photothermal agents rapidly kill bacteria through photothermal therapy. Meanwhile, rGB endows CECP/OD/EMn/rGB hydrogels to release NO under NIR stimulation to promote angiogenesis. Nanozyme EMn with catalase (CAT)/superoxide dismutase (SOD)-like activity can scavenge ROS and release O 2 to alleviate hypoxia and oxidative stress. The phenylboronic acid in CECP forming phenylboronate ester structure endows hydrogel with glucose-controlled release of doxycycline. NIR/glucose stimuli-responsive CECP/OD/EMn/rGB hydrogels with NO/O 2 dual gas-releasing property in a full-thickness skin wound-infected diabetic model reduced the inflammation, promoted wound contraction, collagen deposition, angiogenesis, and alleviated wound hypoxia, providing new ideas for treating bacteria-infected diabetic wounds.
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JOURNAL OF FOOD COMPOSITION AND ANALYSIS
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2025
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IF 4.6
Zhenhe Wang,Xuemei Wang,Guangyu Qi,Shihao Chen,Cong Liu,Giovanna Marrazza,Shuang Gu,Pei Li,Wei Chen
Total volatile basic nitrogen (TVB-N) is a significant indicator for meat freshness evaluation. In this study, a simple hydrothermal method was utilized to synthesize the nanoporous graphene oxide/ molybdenum disulfide (NGO/MoS 2 ) nanocomposites. The optimum detection effect of the polymerization process was optimized by using different proportions of NGO in the solution, and the NGO/MoS 2 based quartz crystal microbalance (QCM) gas sensor was used to detect TVB-N in salmon meat for assessing its freshness. The NGO/MoS 2 composites with different mass ratios were synthesized by hydrothermal method, and were characterized by FT-IR, Raman, XPS, SEM and TEM. The results showed that NGO/MoS 2 had both functional groups on graphene oxide (GO) surface, marginal sites and active sites of MoS 2 . The NGO/MoS 2 based QCM gas sensor was highly sensitive to TVB-N gases such as trimethylamine, dimethylamine and ammonia. Compared with other gases, NGO/MoS 2 sensor had higher selectivity to TVB-N gases. The high responses of NGO/MoS 2 based sensor to TVB-N gases were attributed to the positive synergistic effect of the porous structure, surface functional groups and high specific surface area of NGO and MoS 2 . Finally, the sensor has been applied for predicting salmon meat freshness.
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JOURNAL OF HAZARDOUS MATERIALS
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2017
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IF 6.065
Songjian Zhao,Jian Mei,Haomiao Xu,Wei Liu,Zan Qu,Yong Cui,Naiqiang Yan
Metal-organic frameworks (MOFs) adsorbent Mil-101(Cr) was introduced for the removal of elemental mercury from sintering flue gas. Physical and chemical characterization of the adsorbents showed that MIL-101(Cr) had the largest BET surface area, high thermal stability and oxidation capacity. Hg 0 removal performance analysis indicated that the Hg 0 removal efficiency of MIL-101(Cr) increased with the increasing temperature and oxygen content. Besides, MIL-101(Cr) had the highest Hg 0 removal performance compared with Cu-BTC, UiO-66 and activated carbon, which can reach about 88% at 250 °C. The XPS and Hg-TPD methods were used to analyze the Hg 0 removal mechanism; the results show that Hg 0 was first adsorbed on the surface of Mil-101(Cr), and then oxidized by the open metal site Cr 3+ . The generated Hg 2+ was then combined surface adsorbed oxygen of adsorbent to form HgO, and the open metal site Cr 2+ was oxidized to Cr 3+ by surface active oxygen again. Furthermore, MIL-101(Cr) had good chemical and thermal stability.
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FOOD RESEARCH INTERNATIONAL
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2024
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IF 7
Shiya Gan,Yingqi Chen,Lei Zhao,Xiaoyi Zhao,Tong Qiu,Xiaoting Zhai,Qianying Dai
Chinese Xiaokeng green tea (XKGT) possesses elegant and fascinating aroma characteristics, but its key odorants are still unknown. In this study, 124 volatile compounds in the XKGT infusion were identified by headspace-solid phase microextraction (HS-SPME), stir bar sorptive extraction (SBSE), and solvent extraction-solid phase extraction (SE-SPE) combined with gas chromatography-mass spectrometry (GC–MS). Comparing these three pretreatments, we found HS-SPME was more efficient for headspace compounds while SE-SPE was more efficient for volatiles with higher boiling points. Furthermore, SBSE showed more sensitive to capture ketones then was effective to the application of pretreatment of aroma analysis in green tea. The aroma intensities (AIs) were further identified by gas chromatography–olfactometry (GC-O). According to the AI and relative odor activity value (rOAV), 27 compounds were identified as aroma-active compounds. Quantitative descriptive analysis (QDA) showed that the characteristic aroma attributes of XKGT were chestnut-like, corn-like, fresh, and so on. The results of network analysis showed that ( E , Z )-2,6-nonadienal, nonanal, octanal and nerolidol were responsible for the fresh aroma. Similarly, dimethyl sulfide, ( E , E )-2,4-heptadienal, ( E )-2-octenal and β -cyclocitral contributed to the corn-like aroma. Furthermore, indole was responsible for the chestnut-like and soybean-like aroma. This study contributes to a better understanding of the molecular mechanism of the aroma characteristics of XKGT.
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SENSORS AND ACTUATORS B-CHEMICAL
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2024
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IF 8
Meng Zhang,Xintong Lv,Tianqi Wang,Wenyuan Pei,Ying Yang,Feng Li,Duanduan Yin,Hui Yu,Xiangting Dong
In this paper, polyoxometalates (POMs) electron acceptors were introduced into a classical p-type gas sensitive ceramic-copper oxide (CuO). Then, we investigated the effect of phosphomolybdic acid (PMA) on the sensing performance of CuO gas sensors. The results show that by introducing PMA, the response of CuO gas sensor to 100 ppm ethanol gas can be effectively improved to 2.78. This promotion may be due to the electron trapping effect of PMA, which promotes the carrier migration and inhibits its recombination. Simultaneously, the response and recovery time of the sensor is only 5 s and 4 s. Other gas sensing parameters of the sensors were also comprehensively investigated. The mechanism analysis shows that PMA, as an electron-transport mediator, can trap electrons in the conduction band of CuO, generate shallow electron traps, and effectively inhibit the recombination of electrons and holes in CuO, thereby enhancing gas sensing performance. This work provides a new idea for the advance of CuO-based gas sensors with enhanced sensing sensitivity using polyoxometalates as electron acceptors .
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危险品化学品经营许可证（带存储）