JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2026
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IF 2.4
Jia Xu,Xun Wang,Jiazheng Qin,Ziwei Hu,Ruyi Lin,Yong Ma,Dan Li,Lingzong Meng
The solid–liquid phase equilibria of the quaternary system Na+, Cs+//Cl–, CO32––H2O and its subsystem Na2CO3–Cs2CO3–H2O at 308.15 K were studied by the isothermal dissolution method. The phase diagram of the system Na2CO3–Cs2CO3–H2O is composed of two single-salt crystallization fields of Na2CO3·H2O and Cs2CO3·H2O, two solubility univariant curves, and one invariant point. The dry-salt phase diagram of the quaternary system consists of three invariant points, seven univariant curves, and five crystallization regions corresponding to Na2CO3·H2O, NaCl, solid solution [Cs1–x(Na·H2O)x]Cl, Cs2CO3·H2O, and double salt CsCl·2NaCl·2H2O. The areas of crystallization zones decrease according to the above order. The Jan̈ecke index of H2O, pH, and refractive index of the liquid phase in the quaternary system change regularly with the Jan̈ecke index of Cs+. These results on the phase diagram of the quaternary system can supply theoretical references for cesium salt separation from carbonate-type brine.
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TOXICOLOGY
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2026
·
IF 5.2
Mengying Teng,Jianhui Zhuang,Lili Yang,Yu Chen,Melvin E. Andersen,Qiang Zhang,Weidong Qu
Chlorinated polyfluoroalkyl ether sulfonic acids (Cl-PFESAs, F-53B) are widespread environmental pollutants that have been introduced as emerging alternatives to perfluorooctane sulfonate. They are suspected to have thyroid-disrupting effects, however, their impact on human thyroid hormone (TH) synthesis and the underlying mechanisms remain poorly understood. Using Cl-PFESAs at concentrations relevant to children’s serum levels, in the present study we found that Cl-PFESA mixture significantly elevated thyroxine (T4) and triiodothyronine (T3) synthesis in human thyroid follicular epithelial cells (Nthy-ori 3–1)—contrasting with the hypothyroid effect reported in animal studies. We further demonstrated that mechanistically Cl-PFESAs activated transcription factor paired box gene 8 (PAX8) at environmentally relevant concentrations, upregulating thyroglobulin, thyroid peroxidase, and catalase while downregulating sodium iodide symporter. PAX8 knockdown completely abolished Cl-PFESA-induced upregulation of thyroid-specific transcription factors and TH hypersecretion, confirming that PAX8 plays a central role in mediating the TH-stimulating effect of Cl-PFESA. Furthermore, co-exposure with iodide exhibited a nonmonotonic effect: low-to-medium iodide levels (100–300 μ g/L) enhanced Cl-PFESA-stimulated TH secretion, whereas high levels (≥600 μ g/L) suppressed it. Taken together, this study revealed a novel, human thyrocyte-specific hyperthyroid effect of Cl-PFESA at children serum relevant concentrations and a PAX8-mediated molecular mechanism. Our findings provide crucial toxicological evidence for the human health risk that this class of emerging PFAS alternatives may pose and its potential complications by iodine intake status.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 5
·306
·
IF 5.4
Zhu Yuchuan,Li Junhong,Yang Ruoxi,Bao Mingqiu,Hao Yakai,Chen Huijin,Yue Ruirui,Shu Jinbing,Duan Xuemin
A ternary nanocomposite, PEDOT:PSS/UiO-66-Cl@Ru, was successfully synthesized via a one-pot hydrothermal strategy for the ultrasensitive electrochemical detection of amaranth (AM) and Allura Red (AR). The conceptual advance of this work lies in the synergistic integration of halogen-induced intrinsic electroactivity, maximal atomic utilization of single-atom Ru, and the conductive bridging effect of PEDOT:PSS. This ternary design effectively overcomes the conductivity bottleneck of MOFs while delivering exceptional catalytic site density and enhanced interfacial stability. The resulting PEDOT:PSS/UiO-66-Cl@Ru platform delivered remarkable analytical performance, featuring wide linear ranges of 0.05–140 µM for AM and 0.07–50 µM for AR. The low limits of detection were 16.6 nM and 23.3 nM, with high sensitivities of 0.179 µA µM⁻¹ cm⁻² and 0.247 µA µM⁻¹ cm⁻² for AM and AR, respectively. Furthermore, the proposed sensor demonstrated excellent selectivity, reproducibility, and stability. Finally, the successful application of PEDOT:PSS/UiO-66-Cl@Ru in detecting AM and AR within beverage samples validates its practical utility for on-site food safety screening.
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MARINE POLLUTION BULLETIN
·
2026
·
IF 4.9
Diyi Liu,Lu Liu,Ping Yin,Yan Tian,Jing Zhang
17β-Estradiol (E2), a typical endocrine-disrupting chemical, is widely detected in various aquatic environments, including rivers, lakes, groundwater, estuaries, and coastal waters, posing significant ecological and health risks. Photodegradation is a key pathway for the transformation and removal of E2 from aquatic systems. This study investigated the effects of dissolved organic matter (DOM) from different sources and common inorganic anions (Cl − and NO 3 − ) on E2 photodegradation under simulated solar irradiation. The results indicated that the excited triplet state of DOM ( 3 DOM*), generated upon light absorption, was the key reactive species driving E2 photodegradation. Among the DOM sources examined, humic acid exhibited the strongest promotive effect on E2 photodegradation. Correlation analysis confirmed that terrestrial humic-like components within seawater DOM were the primary contributors to 3 DOM* formation. Seawater DOM from nearshore areas exhibited higher steady-state concentrations of 3 DOM* owing to greater terrestrial input. Both Cl − and NO 3 − effectively accelerated E2 photodegradation, and the E2 degradation rate increased with their concentrations. In contrast, the coexistence of Cl − , NO 3 − , and DOM inhibited E2 photodegradation. In DOM-dominated systems, the main transformation pathways of E2 involved oxidation and hydrolysis reactions on the phenolic ring. This study elucidates the effects of DOM source and water chemical composition on E2 photodegradation, which is crucial for accurately predicting its environmental fate and ecological risks. Moreover, the findings provide valuable insights into the photochemical transformation of other emerging organic contaminants.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Thanh Hai Pham,Do Ngoc Son,Viorel Chihaia
Inhibition efficiency follows MBTH-6-NH 2 ≪ MBTH < MBTH-6-Cl. • A new approach is proposed to evaluate anodic and cathodic inhibition efficiencies. • Adsorption energy alone cannot explain inhibition performance. • Organic inhibitor layers regulate interfacial reaction kinetics and surface electronic structure. By combining experimental techniques with density functional theory (DFT) calculations, we investigate the interfacial corrosion inhibition behavior of 2-mercaptobenzothiazole (MBTH) and its –NH 2 and –Cl substituted derivatives on Cu surfaces. The inhibition efficiencies follow the order MBTH-6-NH 2 < MBTH < MBTH-6-Cl. At 5 × 10 −4 M, MBTH and MBTH-6-Cl exhibit high efficiencies of 95.5% and 97.8%, respectively, whereas MBTH-6-NH 2 shows a lower efficiency of 76.3%. The formation and characteristics of inhibitor layers on copper are confirmed by SEM, AFM, ATR-FTIR, and contact angle measurements. DFT calculations reveal that the adsorption energies of the inhibitors on Cu (111) at various coverages do not correlate with the experimental efficiencies, indicating that adsorption strength alone cannot account for the inhibition mechanism. Instead, the efficiency trend is governed by the influence of inhibitor layers on interfacial electrochemical reactions. The MBTH-6-NH 2 -covered Cu (111) surface exhibits enhanced oxygen reduction activity due to stronger O 2 and H 2 O adsorption, facilitated by hydrogen bonding with the –NH 2 group. Moreover, the reduced work function and lower Cu escape energy promote interfacial charge transfer and copper dissolution. These results demonstrate that regulation of interfacial reaction kinetics and surface electronic structure by organic inhibitor layers is critical for copper corrosion inhibition. Download: Download high-res image (99KB) Download: Download full-size image
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Nature Communications
·
2026
·
IF 18.1
Yu Yang,Zhou Wei,Yuan Junshu,Zhou Xiaohan,Zhang Xuewei,Li Xuhan,Xia Xiao,Zhang Liqiang,Chen Yingjian,Meng Xiaoxiao,Wang Xingxing,Sun Fei,Gao Jihui,Zhao Guangbo
From the perspective of sustainable energy and green hydrogen, the critical challenge in seawater electrolysis lies in suppressing competitive chloride oxidation and corrosion at the anode. Despite the proposed protection mechanism based on surface reconstruction-derived anion repellence, a fundamental question of selectivity remains: why does the protective layer exclude Cl - but not the formally equivalent OH - ? We now redefine the connection between reconstruction and interfacial protection in NiFeS anodes to elucidate the origin of underlying selectivity. In-situ Raman, in-situ X-ray absorption spectroscopy, and molecular dynamic calculations further confirm that the reconstructed SO 4 2- establishes an enhanced hydrogen-bond network. This network significantly weakens the hydrogen-bonding strength of Cl - relative to H 2 O, thereby enhancing the discrimination between OH - and Cl - . In practical application, NiFeS demonstrates energy-saving seawater splitting performance (261.8 mV @ 100 mA·cm -2 ), long-term durability (2000 h @ 1.0 A·cm -2 ), and enables stable intermittent electrolysis (1500 start-stop cycles @500 mA·cm -2 ). When integrated into an anion exchange membrane cell, it shows promising electrolysis performance for industrial applications (1.970 V @ 1.0 A·cm -2 ).
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JOURNAL OF PHYSICAL CHEMISTRY B
·
2026
·
IF 3.2
Ya-Li Wang,Rui-Zhi Cui,Hong-Bao Ren,Qiu-Ye Yang,Wu Li
To investigate the formation process of cesium in a system where chlorine and bromine coexist, as well as the laws governing solid–liquid phase equilibrium, this paper conducts a multiscale study of the CsCl–CsBr–H2O ternary system at 298.15 K. First, the formation process of Cs(Cl, Br) solid solutions was investigated through long-term experiments, while molecular dynamics simulations were employed to examine the coordination and migration of ions at different stages of the reaction. Building on this, the isothermal dissolution equilibrium method was used to systematically determine the stable phase equilibrium relationships in this system and to plot a phase diagram; furthermore, various solid-state characterization analyses were performed on the equilibrium solid phase. Finally, utilizing the thermodynamic data obtained from the experiments, the Pitzer model was parametrized to calculate the solubility of this solid solution system, which was then compared with the experimental results. This research provides a theoretical basis for understanding and predicting the precipitation behavior of cesium in systems where chlorine and bromine coexist.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jiechao Wang,Jiangdong Xu,Wangjian Cheng,Lei Gao,Yutong Wang,Huaiqian Liu,Qianqian He,Chongwei An,Chuanhao Xu
Introducing “0D” CDs as photosensitizers to enhance the laser responsiveness • Constructing photothermal conversion interface micro-units using hydrogen bonding • CDs regulate the pore size distribution of porous micro-units • Establishment of the ignition-combustion model and mechanistic elucidation Composite energetic micro-units are integrated energetic systems in which synergistic components and structural design enable functional coupling and controllable energy release, offering a crucial assembly strategy for efficient laser ignition of high-energy explosives. A key scientific challenge lies in constructing photosensitive micro-units with stable photothermal conversion interfaces and effective energy transfer pathways. In this work, CL-20 is used as the primary energy releasing component, while carbon dots (CDs) are innovatively introduced as photosensitive materials. Sodium alginate (SA) and polyvinyl alcohol (PVA) form the network framework to construct spherical composite energetic micro-units with a three-dimensional porous architecture. Characterization of chemical composition, morphology, and pore size distribution reveals that CDs induce the formation of intermolecular hydrogen bonds and the rearrangement of the hydrogen-bonding network between SA and PVA, which anchoring the boundaries of the 3D network, suppressing the formation of large pores (>50 μm), and enabling controlled regulation of pore size distribution. Laser ignition tests demonstrate that both ignition threshold and ignition delay decrease with increasing CDs content, reaching minima of 166.66 W·cm −2 and 35.4 ms, respectively, confirming the high photothermal conversion efficiency. Furthermore, increasing CDs content (1–9%) induces a pore-migration effect, where large pores gradually disappear and small pores (<50 μm) become dominant. This small porous structure shortens heat and mass transfer distances during combustion and enhances energy release efficiency. For instance, the combustion duration of sample C 7 (7% CDs) is 3.37 times shorter than that of C 1 (1% CDs). These findings provide valuable guidance and data support for the photosensitized design of composite energetic micro-units and for advancing the understanding of their laser ignition and combustion propagation characteristics in high-energy explosive systems.
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JOURNAL OF LUMINESCENCE
·
2026
·
IF 3.8
Hongwei Xu,Yang Chen,Leilei Kuai,Chengjun Liu,Jianjun Zhao,Quan Liu,Bo Wei,Junpeng Xue,Zutao Fan
Metal halide perovskite nanocrystals (PNCs), particularly all-inorganic CsPbX 3 (X = Cl, Br, I), exhibit exceptional optoelectronic properties, positioning them as revolutionary materials for LEDs, displays, and photodetectors. However, their commercialization is impeded by environmental instability under moisture, heat, and light. To address this, we introduce a solvent-induced surface rheological engineering (SISRE) strategy to fabricate super-hydrophobic CsPbX 3 -PS composite membranes inspired by the lotus leaf effect. Key innovation lies in controlled spraying of a THF/ethanol mixture (3:1 v/v) onto the membrane surface. THF selectively dissolves surface PS to induce micro/nano hierarchical roughness, while ethanol triggers rapid polymer re-solidification. By modulating spray passes (5–15 cycles), we achieved tunable hydrophobicity with contact angles increasing from 70° to >140° (Cassie-Baxter state), while maintaining PLQY∼72% for CsPbBr 3 PNCs membrane. The optimized super-hydrophobic membrane (12 spray cycles) nearly exhibited a 2.7-fold enhancement in water stability (PLQY decay rate: 1.65%/day vs. 4.46%/day for untreated films). In addition, when applied as a down-conversion layer on blue LEDs (λ peak = 452 nm), the device achieved 111% NTSC color gamut coverage (98% Rec.2020) with CIE coordinates (0.328, 0.288) and CCT = 5722 K. This work provides a scalable, appliable route to concurrently enhance environmental stability and optoelectronic performance of PNCs.
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ACS Applied Nano Materials
·
2023
·
IF 5.9
Yanchao Yu,Yuan Gao,Wenjuan Wang,Hanyang Chen,Yuzhe Yun,Seeram Ramakrishna,Jun Zhang,Yun-Ze Long
Traditional detection methods usually use a spectrometer, which requires a professional tester to operate and is not convenient to carry around. Herein, we designed a 5G smartphone-based portable test sensor that uses a CsPbBr3 composite fibrous membrane prepared by a one-step in situ growth method as the test paper, and the test is realized by taking pictures with the smartphone. This portable detection method requires only one drop of liquid to be detected (<25 μL), which is superior to many detection systems that require a large amount of liquid to be detected (>1 mL). Moreover, the detection sensitivity can reach 0.1 ppm, which is more sensitive than the CsPbBr3 composite fiber membrane prepared by the conventional encapsulated method. In addition, this CsPbBr3 composite fiber membrane is reusable and can still achieve highly sensitive detection with a single drop after 100 uses. This smartphone-based portable test sensor is small in size and easy to use and can be used at home or outdoors anytime and anywhere.
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INORGANIC CHEMISTRY
·
2023
·
IF 4.6
Mei Hu,Nuerbiye Tuerhong,Zhaohui Chen,Qun Jing,Ming-Hsien Lee
Enthusiasm for the exploration of nonlinear alkali metal borates remains high. Focusing on the Li–B–O–X (X = Cl and Br) system, two examples of noncentrosymmetric borates, Li3B8O13Cl and Li3B8O13Br, were obtained using a high-temperature solution method under vacuum conditions. Structurally, the Li3B8O13X crystals exhibit two independent alternately arranged three-dimensional B–O network structures formed by the basic building block unit B8O16. The performance measurements demonstrate their short ultraviolet cutoff edges. The theoretical calculation indicates that the BO3 units dominate the contribution to their large optical anisotropy with the birefringence, 0.094 and 0.088@1064 nm for Li3B8O13Cl and Li3B8O13Br, respectively.
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Crystals
·
2023
·Vol. 13
·期 6
·983
·
IF 2.7
Hao Zhao,Zishuai Jiang,Chengyu Wang,Yudong Li
The research on rapid and efficient detection of microplastics in water is still in its early stages. Fluorescence feature recognition represents an important and innovative approach to microplastic detection. While carbon quantum dots have been widely used in various environmental detection methods, their use for detecting microplastics in water environments has been rarely reported. In this study, N and Cl co-doped carbon quantum dots were synthesized via a hydrothermal method. The heteroatom doping process endowed them with blue luminescence properties, and their adsorption for microplastics was improved through the introduction of positive and negative charges and intermolecular forces. By utilizing a combined mechanism of fluorescence and Rayleigh scattering, the detection of polystyrene microplastics with three different particle sizes was achieved. In the detection process, it exhibits excellent light stability. Notably, the nano-polystyrene exhibited a good nonlinear relationship within the range of 0.01 g/L to 0.001 g/L, with R2values of 0.923 and 0.980 and a detection limit of 0.4 mg/L. These findings provide a novel approach for the detection of nano microplastics.Keywords:lignin;carbon quantum dots;co-doping;microplastic detection
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