Journal of Water Process Engineering
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2025
·
IF 6.7
Chunli Song,Xu He,Tianzhe Lei,Yawen Zhang,Benfa Chu,Zhongbiao Zhang
Treating Heavy metals and organic pollutants pose significant challenges in water remediation. In this study, we innovatively developed a Fenton-like catalyst by transforming spent heavy metal adsorbents into a carbon-confined copper-based catalyst (Cu@C) through a high-temperature pyrolysis strategy. This approach successfully achieves the dual objectives of waste valorization and construction of high-performance Fenton-like catalysts. Characterization analyses reveal that the abundant C-O-Cu structures in the catalyst create highly efficient active sites, endowing it with exceptional catalytic performance in activating peroxymonosulfate (PMS) for organic pollutant degradation. Mechanistic investigations demonstrate that ≡Cu(II)-OOSO 3 − and Cu(III) species serve as the dominant reactive oxygen species (ROS) in the degradation of 2,4-dichlorophenol (2,4-DCP). The confinement effect of the carbon matrix significantly reduces copper leaching, thereby substantially enhancing the catalyst's cycling stability. Beyond presenting a new design framework for high-performance copper‑carbon water treatment catalysts, this work pioneers a circular economy approach by transforming waste adsorbents into valuable environmental functional materials.
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Journal of Energy Storage
·
2025
·
IF 9.8
Lingjun Song,Yangjie Ou,Yongpeng Xia,Xianting Zhang,Lixian Sun,Yujia Sun,Fen Xu
Flame-retardant thermochromic composite phase change materials (CPCMs) that offer visual temperature monitoring and energy storage capabilities are essential for applications in smart buildings. Encapsulation of phase change materials (PCMs) in three-dimensional continuous porous carriers is an effective strategy to ensure shape stability in conventional latent heat storage systems. Wood, a renewable resource with a natural porous structure, is delignified to create a more complex three-dimensional hierarchical porous framework. Thermochromic materials and nano‑calcium carbonate (nanoCaCO 3 ) are then melt-blended and impregnated into the delignified wood through vacuum impregnation. The resulting composite phase change material, CTBC/DW, possesses high heat storage density, reversible thermochromic properties, information storage and concealment capabilities, and flame retardancy. Differential scanning calorimetry (DSC) results show that CTBC/DW achieves a high thermal energy storage density (142.70–171.40 J g −1 at 7–14 wt% nanoCaCO₃ loading) and excellent thermal stability. Importantly, CTBC/DW demonstrates significant reversible thermochromic behavior, with color changes from dark blue (25 °C) to Off-white (40 °C), making it useful for visualizing the phase change thermal storage process and enabling information access. Additionally, nanoCaCO 3 was introduced as a cladding material to solve the defect of flammability of wood, thereby improving the service life of the composites. This composite material holds considerable potential for a range of thermal energy storage applications, including information storage, decoration, furniture, and energy-efficient building solutions.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
·
IF 15.7
Liu Chenchen,Liu Xueming,Chen Bing,Li Zifan,Ou Xinwen,Lu Yaobin,Liu Yuhao,Wu Chongbei,Yao Shan,Liu Yunhai,Ye Liqun,Han Bin,Yang Zhifeng
Photocatalytic oxygen reduction reaction offers a sustainable approach for hydrogen peroxide (H 2 O 2 ) synthesis, while the efficiency is limited by the challenge of synergistically optimizing the supply of oxygen, protons, and electrons. Here, by elaborately developing squaric acid-based zwitterionic covalent organic framework (STT COF), we propose a triple synergy strategy for boosting H 2 O 2 photosynthesis. The as-prepared STT COF delivers a high H 2 O 2 yield of 14356.5 μmol g –1 h –1 in pure water, with a notable apparent quantum yield of 40.0% at 420 nm, roughly 7.9 times that of its charge-neutral counterpart and outperforming other documented systems. Under natural sunlight irradiation, a 5 L H 2 O 2 solution (~400 μM) is produced in a continuous flow membrane reactor equipped with STT COF and gas diffusion layers. Mechanism studies demonstrate that STT COF induces a strong donor-acceptor (D-A) interaction to promote electron transfer, undergoes spontaneous hydrogenation for continuous protons and facilitating oxygen uptake in a favorable configuration, collectively creating a triple synergy to boost H 2 O 2 photosynthesis.
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CARBON
·
2025
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IF 11.6
Xudong Hu,Xiaolian Zhao,Shuang Li,Mengmeng Zhou,Jun Long,Xinhai Wang,Usman Farooq
Developing advanced photocatalysts with high light utilization and outstanding performance is crucial for the efficient purification of wastewater from organic contaminants. Our groundbreaking photocatalyst, boasting superior efficiency and realizing activation of peroxymonosulfate (PMS) by near-infrared-light (NIR), effectively degrades pollutants such as chlorophenol, bisphenol A, and various antibiotics in wastewater by prediction of theoretical calculation. This is verified by strategically synthesis of metal sulfide-modified graphitic carbon nitride (g-C 3 N 4 ) Z-scheme heterojunctions, which is optimized for photo-Fenton catalysis. CuS/CNNSs degrades 40 ppm 4-CP to undetectable in 20 min with a rate constant of 0.230 min −1 , 10x faster than Carbon-nitrogen nanosheets (CNNSs), showcasing its remarkable efficiency and the degradation efficiency remains above 80 % along with extremely excellent quantum efficiency (3.81 %) under NIR (1000 nm). It has strong catalytic stability and can cope with various complex water bodies with >90 % efficiency retention after 5 cycles. Moreover, we have delved into the intricate details of the degradation efficiency in real water system and various descriptors that affect the activation ability of catalysts by density functional theory (DFT). This strategy provides insight for pollutant degradation mechanisms for advanced photocatalyst R&D for wastewater treatment.
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WATER AIR AND SOIL POLLUTION
·
2025
·Vol. 236
·期 14
·1-15
·
IF 3
Peng Junlin,Bai Dihao,Sun Lei,Yuan Xiangjuan
The perovskite CeCoO 3 composites were synthesized through the sol–gel method with two complexing agents (citric acid and EDTA) with different Ce/Co molar rations and further applied for peroxymonosulfate (PMS) activation. The physicochemical properties and morphology of CeCoO 3 were characterized using BET, XRD, FT-IR, SEM, TEM, and XPS techniques. When the CeCoO 3 prepared with EDTA as the complexing agent at 600°C and Ce/Co ratio of 1:1, the EDTA-CeCoO 3 exhibited superior physicochemical properties, including a high specific surface area (7.69 m 2 /g) and pore volume, abundant oxygen vacancies, and optimal exposure of active sites, which is most conducive to activating PMS. The effects of catalyst dosage, PMS dosage, initial pH, natural organic matter, and common anions on CeCoO 3 /PMS system for bisphenol A (BPA) degradation were systematically evaluated. The results revealed that CeCoO 3 prepared with EDTA at 600°C Demonstrated excellent catalytic activity for PMS Degradation of BPA, achieving over 97% Degradation efficiency of BPA within 15 min, with a pseudo-first-order reaction rate constant ( k ) of 0.2909 min⁻ 1 . Furthermore, CeCoO 3 showed outstanding stability in multiple cyclic experiments. Furthermore, radical quenching experiments confirmed that SO 4 •− , • OH, and O 2 •− were the dominant active radicals in the CeCoO 3 /PMS system for BPA degradation, and a plausible reaction mechanism was proposed. This study provides new insights into the development of PMS activating catalysts, specifically low-cobalt-content yet highly efficient cobalt-based catalysts.
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JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Shitong Liu,Li Gao,Siwen Lu,Ziliang Li,Yiran Li,Xiaoming Yan,Gaohong He
Ion-solvating membranes (ISMs) are broadly used in alkaline water electrolysis (AWE) for their excellent alkaline stability. However, their ionic conductivity often remains a bottleneck. In this work, a series of ISMs featuring hydrophilic microporous structures were developed for AWE. The twisted spirobisindane backbone generated abundant microporosity and carboxyl-induced hydrophilic channels provided ample volume for electrolyte retention, thereby suppressed the swelling ratio. An increased density of carboxyl groups enhanced the hydration environment and promoted the formation of more continuous hydrophilic domains, thereby facilitating ionic transport. The increased incorporation of DMB monomers elevated the hydrophilic of the channels, thereby enhancing ionic conductivity and resulting in the greatest performance of COOH-DMB-40. The COOH-DMB-40 membrane achieved a high alkaline uptake of 78.6% and a low swelling ratio of 19.2% (6 M KOH, 80 °C), yielding a superior ionic conductivity of 134.1 mS cm -1 . In water electrolysis test, COOH-DMB-40 delivered a high current density of 4.4 A cm -2 ( 2.0 V, 80 °C).
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ANALYTICA CHIMICA ACTA
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2010
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IF 3.757
Mingming Liu,Xin Zhou,Yingyi Chen,Hanlan Liu,Xionghan Feng,Guohong Qiu,Fan Liu,Zhaorui Zeng
In this work, two allyl-functionalised ionic liquids (ILs), 1-allyl-3-methylimidazolium hexafluorophosphate and 1-allyl-3-methylimidazolium bis(trifluoromethanesulphonyl)imide, were used as selective coating materials to prepare chemically bonded ILs-based organic–inorganic hybrid solid phase microextraction fibres. These fibres were prepared with the aid of γ-methacryloxypropyltrimethoxysilane as bridge using sol–gel method and free radical cross-linking technology . The underlying mechanisms of the sol–gel reaction were proposed, and the successful binding of these functional ILs to the sol–gel substrate was confirmed by Fourier transform infrared spectroscopy . These IL-based sol–gel coatings had porous surface structure, high thermal stability , a wide range of pH stability, strong solvent resistance and good coating preparation reproducibility. They also had high selectivity and sensitivity towards strong polar phenolic environmental estrogens (PEEs) and aromatic amines due to the strong electrostatic interactions , hydrogen bonding and π–π interactions provided by the special molecular structure of these imidazolium ILs. Moreover, their characteristics were somewhat different depending on the type of anions in the IL structure. The practical applicability of these IL-based sol–gel coatings was evaluated through the analysis of PEEs in two real water samples. The detection limits were quite low, varying from 0.0030 to 0.1248 μg L −1 . The linearity was very good in the range of 0.1 to 1000 μg L −1 for most analytes, and the relative standard deviation values were below 6%. The relative recoveries were between 83.1 and 104.1% for lake water and between 89.1 and 97.1% for sewage drainage outlet water.
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JOURNAL OF CELLULAR PHYSIOLOGY
·
2023
·Vol. 238
·期 6
·1256-1274
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IF 5.6
Zhe Li,Tong Xu,Xue Fan,Kai Chen,Chunyan Wan,Xiang Li,Hang Yin,Shu Li
Both bisphenol A (BPA) and selenium (Se) deficiency can affect the expression of microRNAs (miRNAs), which can specifically regulate its target mRNA and induce apoptosis, and play a significant role in cardiovascular injury diseases. To explore the mechanism of apoptosis induced by BPA and Se deficiency in chicken arterial endothelial tissue and the role of miRNAs in this process, the model of BPA exposure/Se deficiency in chicken and PAEC cells have been employed. The targeting relationship between miR-215-3p and iodothyronine deiodinase 1 (Dio1) in PAEC was verified by double luciferase gene report. The level of miR-215-3p was detected by qRT-PCR. The oxidative stress level of arterial endothelial cells was detected by oxidative stress kit and DCFH-DA probe method. The PI3K/AKT pathway, mitochondrial dynamics, and apoptosis-related genes were detected by qRT-PCR and western blot. The mitochondrial ATP level and nitric oxide synthases (NOSs) level were detected with the kit. TUNEL, acridine orange/ethidium bromide, and flow cytometry were used to detect the level of apoptosis. The results showed that BPA exposure and Se deficiency led to overexpression of miR-215-3p, aggravated oxidative stress, inhibited activation of PI3K/AKT pathway, promoted mitochondrial division, increased expression of apoptosis related genes, and finally led to apoptosis of chicken arterial endothelial cells. We also established knockdown/overexpression models of miR-215-3p and Dio1 in vitro, and found that overexpression of miR-215-3p and knockout of Dio1 can induce apoptosis. Interestingly, miR-215-3p-Inhibitor and N-acetyl- l -cysteine (NAC) partially prevented apoptosis caused by BPA exposure and Se deficiency, and LY294002 aggravated apoptosis. These results suggest that BPA exposure aggravates the apoptosis of Se deficient arterial endothelial cells in chickens by regulating the ROS/PI3K/AKT pathway activated by miR-215-3p/Dio1. The miR-215-3p/Dio1 axis provides a new way to understand the toxic mechanism of BPA exposure and Se deficiency, and reveals a new regulatory model of apoptosis damage in vascular diseases.
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MOLECULES
·
2023
·Vol. 28
·期 8
·3542
·
IF 4.6
Qing Liu,Chao Yan,Yan Wang
Applications of submicron-scale particles are of rising interest in separation science due to their favorable surface-to-volume ratio and their fabrication of highly ordered structures. The uniformly dense packing beds in columns assembled from nanoparticles combined with an electroosmotic flow-driven system has great potential in a highly efficient separation system. Here, we packed capillary columns using a gravity method with synthesized nanoscale C18-SiO2particles having diameters of 300–900 nm. The separation of small molecules and proteins was evaluated in the packed columns on a pressurized capillary electrochromatography platform. The run-to-run reproducibility regarding retention time and peak area for the PAHs using a column packed with 300 nm C18-SiO2particles were less than 1.61% and 3.17%, respectively. Our study exhibited a systematic separation analysis of small molecules and proteins based on the columns packed with submicron particles combined with the pressurized capillary electrochromatography (pCEC) platform. This study may provide a promising analytical approach with extraordinary column efficiency, resolution, and speed for the separation of complex samples.Keywords:submicron scale particles;pressurized capillary electrochromatography;separation
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Zhenyu Shi,Wei Zhang,Chao Qin,Yan Yan,Zhanqi Gao,Liang Zhu,Chunmei Tang,Can Jin,Shaogui Yang
Developing efficient and stable catalysts for periodate (PI) activation is important for the abatement of emerging contaminants. Herein, Fe doped into polyprophyrin-based porous organic polymer (Fe@PrPOP) was prepared via a facile one-step reaction, and its catalytic capacity and reaction mechanism for PI activation were systematically investigated. Complete removal of bisphenol A (BPA) was achieved within 12 min under the Fe@PrPOP/PI system within a wide pH range (3–8), as well as no leaching of Fe was observed throughout the reaction. Nonradical pathways, including 1 O 2 and electron transfer, were identified for the BPA removal. According to substantial characterizations and density functional theory calculations, we concluded that the scattered Fe species on the surface of Fe@PrPOP were the main active sites, which was conducive to the adsorption and activation of PI. In addition, the Fe@PrPOP/PI system exhibited selective oxidation toward various organic pollutants with electron-rich moieties. Overall, this study provides a promising alternative in activating PI for the removal of organic compounds in water.
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CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Jianhua Qu,Zhuoran Li,Zhihuan Wu,Fuxuan Bi,Shuqi Wei,Min Dong,Qi Hu,Yifan Wang,Hui Yu,Ying Zhang
Currently, functional materials-based soil remediation focused on the stabilization of heavy metals and organics to inhibit their migration, however, the possible second release of these pollutants caused by soil condition variation attracts broad attention. Herein, β-cyclodextrin functionalized magnetic sodium alginate microspheres (MSA-CD MW ) were fast and facilely synthesized through microwave-assisted one-pot method for synchronous detachment of Pb and BPA from contaminated soil. The obtained MSA-CD MW presented wide pH adaptability and fast capture for Pb(II)/BPA with superior adsorption capacity of 369.03/165.37 mg/g. Furthermore, the effects of material dosage and soil pH on the remediation ability of MSA-CD MW were explored in detail. After adding 5% MSA-CD MW into the contaminated soil for 3-round successive remediation (12 h for each round), the amount of extractable Pb and total BPA was simultaneously decreased by 56.30 and 0.78 mg/kg, respectively. Meanwhile, the quantity of exchangeable and carbonate bound Pb was significantly decreased to 7.13% with transformation into relatively stable fractions. A series of characterizations revealed that ion exchange, pore filling, complexation, and electrostatic attraction were responsible for Pb binding, while MSA-CD MW could capture BPA through host-guest interaction by the hydrophobic cavity of β-cyclodextrin. Additionally, recovery and floatation results revealed that the MSA-CD MW could be easily separated from the soil using magnets even at extreme drying and wetting conditions, thus providing a novel, fast, and eco-friendly strategy for effective remediation of heavy metals and organics contaminated soil.
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Analytical Methods
·
2023
·Vol. 15
·期 12
·1546-1552
·
IF 3.1
Yucui Hou,Xiaoling Lu,Jie Yang,Chunhua Tang,Hanbing Jiang,Tongji Cai,Meilun Chen,Zheng Wei,Peng Yu
Testosterone is a steroid hormone that plays an indispensable role in the normal metabolism of organisms. However, exogenous testosterone, even as low as nmol L−1, will harm the human body due to accumulation. In this study, we developed an unlabeled fluorescent sensor for testosterone based on SYBR Green I. SYBR Green I is a fluorescent dye that can be embedded into the G-quadruplex of the testosterone aptamer T5. The fluorescence quenching effect is utilized to achieve quantitative detection, which occurs by the competition between testosterone and SYBR Green I for the T5 aptamer binding sites. In this work, we optimized the detection conditions to make the fluorescent sensor more sensitive and verify the specificity, linear range, and detection ability in the buffer and real water samples. The sensor's LOD and LOQ values were 0.27 nmol L−1 and 0.91 nmol L−1, respectively, while the detection range was linear from 0.91 nmol L−1 to 2000 nmol L−1. According to the results, the sensor shows high specificity and good performance even in real sample detection such as tap water and river water, providing an alternative method for the quantitative detection of testosterone in the environment, which is more convenient and efficient.
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