CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Dongshun Deng,Bao Gao,Chao Zhang,Xiuzhi Duan,Yanhong Cui,Jingheng Ning
Ammonia (NH 3 ) is not only a harmful gas to environmental problem, but also a fundamental raw material in chemical industry. The effective separation and recovery of NH 3 from exhaust gas at low cost still remains a challenge for a long time. In this study, a new strategy to construct protic deep eutectic solvents (DESs) by paring NH 4 SCN as hydrogen-bond acceptor with various hydrogen-bond donors [glycerol (G), ethylene glycol (EG), urea (U), acetamide (AT), and caprolactam (CL)] was proposed for efficient and reversible absorption of NH 3 . Results showed that all the DESs possessed exceptional NH 3 absorption capacity and high NH 3 /CO 2 selectivity. At 303 K and 0.10 MPa, the absorption capacity of NH 3 in NH 4 SCN-glycerol (2:3) is as high as 0.223 g NH 3 per g DES, which is much higher than all reported functional ILs and DESs up to date. The NH 3 saturated DES was easily regenerated and recycled 25 times with persistent absorption performance. The influences of DES composition, temperature, NH 3 partial pressure on NH 3 absorption performance were also explored in detail. The absorption mechanism was analyzed using NMR spectroscopy and quantum calculation. These protic NH 4 SCN-based DESs presented as promising absorbents for NH 3 because of their high absorption capacity and good reversibility.
研究领域:
环境化学
·
分离科学
·
绿色溶剂
·
气体吸收
·
化学工程
✓ 已验证
DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2026
·
IF 7.3
Qiheng Qin,Bohao Liu,Jinyong Hu,Yong Zhang
Moist-electric generators (MEGs) have garnered considerable research attention in electricity generation without additional mechanical energy. Nevertheless, their practical applications in humidity sensing are limited by intrinsic limitations, including constrained water diffusivity and insufficient water ionization efficiency, which are synergistically detrimental to the output voltage and response time of the MEGs. Facilitating the directional ion migration across the sensing film is a critical way for realizing highly sensitive self-powered humidity detection with rapid response ability. Enlightened by the electric field that can drive the directional ion migration, an electric-field-enhanced MEG (E-MEG)-based humidity sensor was designed, in which a sensing film was sandwiched between two different metal electrodes. Following the working principle of moisture-induced primary batteries, an internal electric field that aligned with the water diffusive orientation was generated across the sensing film, thereby promoting the humidity sensing performance of the MEG-based sensor. The proposed E-MEG-based humidity sensor achieved an increased output voltage (955.6 mV) and decreased response time (64 s) compared to the pristine MEG-based sensor (137.1 mV/242 s) under 89.2% relative humidity (RH). This work furnishes novel research perspectives for advancing applications of MEGs in humidity detection and illuminates an innovative development in self-powered humidity-sensing technology.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD HYDROCOLLOIDS
·
2026
·
IF 13.8
Shuo Han,Yanan Zhao,Herui Zhang,Qiufeng Zhang,Boqun Liu,Yang Li
3D printing has emerged as a promising technology for developing nutritional foods to meet the needs of people with dysphagia. However, a single hydrogel or oleogel cannot meet the strict performance requirements for 3D printing, while bigels are ideal inks by combining the merits of both gels. In this study, soybean protein isolate (SPI)–rice bran oil (RBO) bigels were prepared at oleogel/hydrogel ratios of 30:70, 40:60, 50:50, 60:40, and 70:30. The samples were characterized by confocal laser scanning microscopy (CLSM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), rheology, texture profile analysis (TPA), low-field nuclear magnetic resonance (LF-NMR), liquid binding capacity (LBC), oxidative stability, International Dysphagia Diet Standardisation Initiative (IDDSI) tests, and manual extrusion using a 3D printing pen. Increasing oleogel content promoted phase evolution from oil-in-water (O/W) to bicontinuous and water-in-oil (W/O) structures, enhanced hydrogen-bonding-related spectral changes and crystallinity, and reduced free-water mobility. All formulations showed shear-thinning behavior and elastic-dominant networks. Among them, BG6 (60:40) showed the most balanced performance, including the highest thermal stability (Tpeak = 55.17 °C), high LBC (98.68%), relatively slow lipid oxidation, IDDSI Level 5 compliance, and visually stable F-, Z-, and cube-shaped structures under manual extrusion. These results suggest that SPI-RBO bigels, particularly BG6, have potential as plant-based edible inks for dysphagia-oriented 3D printed foods under the tested conditions.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS A-GENERAL
·
2026
·
IF 4.8
Pengjing Chen,Wang Yang,Kaixing Wang,Xiaohan Xu,Ping Li,Dan Zhao,Baiwei Ma
Covalent organic frameworks (COFs) have emerged as promising photocatalysts for organic transformations due to their tunable structures and porosity. However, their efficiency is often limited by the rapid recombination of photogenerated charge carriers, restricted light absorption primarily in the UV region, and the lack of localized heat to enhance reaction kinetics at ambient conditions. To address these intertwined challenges, we propose a multi-faceted engineering strategy that simultaneously integrates a narrow bandgap, a strong internal electric field, and an efficient photothermal effect into a single COF platform. Herein, we demonstrate the deliberate design and synthesis of two pyridinium-based COFs (P-HCl-COF and Q-HCl-COF) via Schiff-base condensation followed by hydrochlorination. The incorporation of cationic pyridinium moieties serves as powerful electron-withdrawing centers, creating a robust internal electric field that drastically promotes charge separation and migration. Furthermore, the constructed donor-acceptor (D-A) architecture ensures a narrow bandgap for broad visible-light harvesting, while also enabling efficient conversion of absorbed photons into thermal energy. This synergistic combination of enhanced charge separation, extended light absorption, and accelerated local reaction kinetics via the photothermal effect results in exceptional photocatalytic performance. This is exemplified in the regioselective thiocyanation of indoles, where Q-HCl-COF achieves a near-quantitative yield (99 %) under mild conditions, significantly outperforming its precursors. This work provides a novel and effective strategy for the multi-dimensional design of high-performance COF photocatalysts by synergistically engineering electronic, optical, and thermal properties.
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2026
·
IF 29.1
Chongyu Zhong,Junbo Wang,Zhangsheng Shi,Wenjian Yan,Fengwei Wang,Qingyun He,Mengyang Wu,Lei Li,Xiangru Zhao,Yang Jiang,Jingya Lai,Chengcheng Li,Jiupeng Cao,Tianshi Qin,Wei Huang,Renzhi Li,Fangfang Wang
All-perovskite tandem solar cells (all-PSK TSCs) offer a promising route to surpass single-junction efficiency limits, yet the performance of wide-bandgap (WBG) subcells remains constrained by inadequate interfacial engineering. In particular, the molecular orientation and packing of self-assembled monolayers (SAMs) can significantly influence perovskite film formation and device performance. Here, we rationally design a series of carbazole-based SAMs and identify a bicarbazole-core molecule, 9,9-DCz, that adopts a predominantly upright orientation on indium tin oxide (ITO), in contrast to the conventional flat-lying alignment. This vertical configuration facilitates denser surface coverage, favorable energy-level alignment, and reduced non-radiative recombination in the WBG perovskite layer. As a result, we achieve a certified power conversion efficiency (PCE) of 19.95% (champion 20.81%) for the WBG subcell (1.77 eV, 0.0396 cm 2 ), and 28.59% for the all-PSK tandem device. Our findings indicate that upright SAMs orientation as an effective design principle for high-performance WBG and tandem perovskite photovoltaics.
✓ 已验证
产品关联
DOI
高影响因子
Laser & Photonics Reviews
·
2026
·
IF 9.7
Zeyu Miao,Yinghui Wang,Lei Wang,Wenxu Yin,Ning Wang,Tom Wu,Xuyong Yang,Xiaoyu Zhang,Jiaqi Zhang
Two-dimensional (2D) tin (Sn)-based perovskites are promising lead-free emitters for red light-emitting diodes (LEDs), but their intrinsically low carrier mobility and poor film morphology severely limit large-area performance. Here, we introduce a one-step antisolvent-assisted approach that disperses amino-functionalized multi-walled carbon nanotubes (CNTs) along the grain boundaries of phenethylammonium tin iodide (PEA 2 SnI 4 ) films. The CNTs provide conductive pathways that accelerate carrier diffusion, while their ammonium groups regulate crystallization and improve film uniformity. Transient absorption microscopy and transport measurements confirm that carrier conduction is more than doubled in CNT-modified films. As a result, large-area (150 mm 2 ) PEA 2 SnI 4 LEDs achieve a maximum external quantum efficiency of 2.35% and a peak luminance of 5028 cd m −2 , exceeding the threshold for outdoor-readable displays. This grain-boundary engineering strategy directly addresses the transport and morphology limitations of 2D Sn-based perovskites and establishes a scalable route to high-performance, lead-free optoelectronics.
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Xiaoke Zhang,Shiwei Yuan,Yongqi Li,Zhongyang Wang,Wenran Feng
Two-dimensional molybdenum disulfide (2D MoS2) holds significant promise for the development of various photoelectric devices due to its unique atomic thin layer and band gap characteristics. Numerous techniques have made strides in exfoliating 2D MoS2 nanosheets from their bulk counterparts. However, achieving environmentally benign and efficient preparation of high-quality MoS2 nanosheets remains challenging. Here, we develop a green and efficient approach to preparing MoS2 nanosheets through ultrasound-assisted liquid-phase exfoliation using sustainable alcohol solvents. Systematic investigations reveal that solvent selection critically governs both the exfoliation efficiency and structural preservation of MoS2 nanoflower precursors synthesized via hydrothermal methods. Comprehensive characterization confirms that ethanol-mediated exfoliation yields intact 2H phase nanosheets. For other solvents, however, chemical doping during exfoliation resulted in the emergence of the 1T phase within the nanosheets. Notably, dimethylformamide (DMF), dimethyl sulfoxide (DMSO), and isopropanol (IPA) induce detrimental aggregation and methanol (MeOH) causes structural fragmentation, leading to the least effective exfoliating outcome. Through first-principles calculations and considering the efficiency of chemical doping, ethanol (EtOH) was identified as the optimal solvent for the exfoliation of MoS2 nanosheets. This work establishes an eco-friendly pathway for producing phase-modulated MoS2 nanosheets, demonstrating remarkable potential for sustainable manufacturing of 2D materials.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD SCIENCE
·
2025
·Vol. 90
·期 6
·e70308
·
IF 3.4
Li Ma,Dian Liu,Xiaoqing Li,Liqiang Zou,Qin Wang,Wei Liu
This study constructed DHA algae oil emulsions using sodium caseinate (NaCS) as an emulsifier and by controlling the mass fraction of glycerol in the aqueous phase (0–90 wt%). The differences of physicochemical properties, oxidative stability, and bioaccessibility were systematically investigated. The findings indicated that the incorporation of glycerol significantly enhanced the emulsion performance. The emulsion with high glycerol content (90 wt%) exhibited the smallest droplet size (185.6 ± 4.05 nm), the highest apparent viscosity and shear modulus, demonstrating weak gel characteristics, and maintained excellent stability within the pH range of 3–8 and under centrifugal conditions. By inhibiting the dissolved oxygen in the aqueous phase and delaying oxygen diffusion, the glycerol emulsion significantly slowed down the oxidation process of DHA algae oil, with lower primary oxidation products (POV) and secondary oxidation products (TBARS) compared to the conventional emulsion (0 wt% glycerol). Additionally, it inhibited the oxidation of tryptophan and the formation of Schiff bases in NaCS, effectively suppressing protein oxidation. In vitro simulated digestion experiments showed that the DHA bioaccessibility of all emulsions was above 85%, which was three times higher than that of pure algae oil (27.8%), and the glycerol content had no significant effect on it. This study confirms that the low-water glycerol–NaCS emulsion system can synergistically enhance the oxidative stability and bioavailability of DHA algae oil, providing a new strategy for developing long-lasting and stable functional lipid delivery systems.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
EUROPEAN JOURNAL OF PHARMACOLOGY
·
2026
·
IF 4.7
Zhenshuai Zhang,Li Jiang,Lu Chen,Xinyan Cai,Yuteng Wang,Wenqian Xue,Kaijian Lei,Tianxiao Wang
Colorectal cancer (CRC) remains one of the most prevalent malignancies globally, with limited therapeutic options for advanced-stage patients due to acquired drug resistance and systemic toxicity. Ferroptosis, an iron-dependent form of regulated cell death driven by lipid peroxidation, has emerged as a promising therapeutic target for CRC, while cystathionine γ-lyase (CSE)—a key enzyme in hydrogen sulfide (H 2 S) biosynthesis—plays a critical role in maintaining redox homeostasis and suppressing ferroptosis in cancer cells. Here, we synthesized a novel small-molecule compound, DPhA-EtOBz-TSC, and systematically evaluated its anti-CRC efficacy and underlying molecular mechanism. The chemical structure of DPhA-EtOBz-TSC was confirmed by 1 H nuclear magnetic resonance ( 1 H NMR), 13 C NMR, and high-resolution mass spectrometry (HRMS). In vitro studies using human CRC cell lines (HCT8 and SW480) demonstrated that DPhA-EtOBz-TSC specifically targeted and inhibited CSE: molecular docking and cellular thermal shift assay (CETSA) confirmed direct binding between DPhA-EtOBz-TSC and CSE (binding affinity ΔG = −29.07 ± 3. 85 kcal/mol), while Western blot analysis revealed a concentration-dependent reduction in CSE protein levels in SW480 and HCT8 cells treated with DPhA-EtOBz-TSC. Mechanistically, DPhA-EtOBz-TSC-induced CSE downregulation disrupted the CSE-H 2 S-GPX4 axis, leading to reduced glutathione (GSH) levels, decreased glutathione peroxidase 4 (GPX4) activity, and accumulation of lipid reactive oxygen species (ROS) and malondialdehyde (MDA)—hallmarks of ferroptosis. Additionally, Electron microscopy and JC-1 staining revealed that DPhA-EtOBz-TSC induced significant alterations in mitochondrial morphology and a marked reduction in mitochondrial membrane potential (ΔΨm). Functionally, DPhA-EtOBz-TSC exhibited potent in vitro anti-CRC activity with IC 50 values of 25.15 μM (HCT8) and 26.11 μM (SW480) respectively, and suppressed migration and invasion. In vivo, DPhA-EtOBz-TSC (10 mg/kg/day, i.p.) significantly suppressed the growth of CT26 cell-derived xenograft tumors in BALB/c mice without causing obvious histopathological abnormalities in major organs (heart, liver, spleen, lung, kidney). Immunohistochemical staining of tumor tissues confirmed increased lipid peroxidation and decreased CSE/GPX4 expression in DPhA-EtOBz-TSC-treated mice, consistent with in vitro findings. In conclusion, DPhA-EtOBz-TSC is a novel CSE-targeting compound that induces ferroptosis in CRC cells and inhibits tumor growth in vivo. Our findings identify DPhA-EtOBz-TSC as a potential lead compound for CRC therapy and highlight the CSE-H 2 S-GPX4 axis as a viable therapeutic target for ferroptosis-based anticancer strategies.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NATURE
·
2026
·
IF 48.5
Zhang Kun,Liu Yifang,Gao Ying,Zhang Zhe,Wang Haoyu,Li Wanwu,Fan Xiaoyan,Ding Jiayu,Guan Ziqi,Kawaguchi Shogo,Du Zhaoxu,Zhang Jiaqing,Su Lei,Li Yiming,Jiang Runjian,Li Yifan,Jia Yating,Wang Yanxu,Lin Jianchao,Zhu Jinlong,Tong Peng,Qian Suxin,Li Kuo,Zhang Zhidong,Li Bing
Refrigeration is indispensable to modern society 1 , yet the dominant vapour-compression systems rely on environmentally harmful fluorocarbon refrigerants with high global warming potential 2 , 3 , 4 . Solid-state caloric refrigeration offers a low-carbon alternative 5 , 6 , 7 , but its practical deployment has been hindered by limited cooling capacity and the inefficient indirect heat transfer that requires secondary fluids. Here we report an extreme barocaloric effect in NH 4 SCN aqueous solutions enabled by pressure-tuned dissolution and precipitation. This mechanism delivers an exceptionally large cooling capacity and markedly enhanced cooling efficiency. We obtain an in situ temperature drop of 26.8 K in the solution at room temperature, surpassing all known caloric materials. A Carnot-like cycle is designed to deliver 67 J g −1 cooling capacity per cycle with a second-law efficiency of 77%, benefiting from the extremely large temperature drops and direct heat transfer due to the self-circulating aqueous solution. Beyond the phase-transition scenario, this dissolution-based approach that combines the merits of current leading technologies emerges as a promising sustainable refrigeration solution.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2026
·Vol. 9
·期 16
·10770-10777
·
IF 5.5
Zhu Ying,Zhang Xin,Geng Yuwei,Liu Yan,Yang Guanjun,Chen Bo
Nickel oxide (NiO x ) hole transport layers are widely employed in perovskite solar cells (PSCs) due to their excellent chemical stability. However, the poor quality of the NiO x /perovskite interface limits device performance. Herein, we report a bifunctional interface engineering strategy using ammonium thiocyanate (NH 4 SCN) that reduces energy barriers and passivates defects at the NiO x /perovskite interface. NH 4 SCN decreases surface hydroxyl groups on NiO x , suppresses trap states, and improves energy-level alignment of hole transport layer with perovskite. Additionally, NH 4 SCN promotes the growth of larger perovskite grains, alleviates lattice strain, and passivates defects at buried interface of perovskite film, thus enhancing film quality and improving carrier lifetime. As a result, air-processed wide-bandgap PSCs based on NH 4 SCN-treated NiO x achieve a power conversion efficiency of 21.41% and an open-circuit voltage of 1.260 V, outperforming control devices (19.81%, 1.236 V). This work provides an effective interface engineering strategy for high-performance wide-bandgap PSCs.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CATALYSIS
·
2025
·
IF 6.5
Baiwei Ma,Xuanyu Lin,Wenxin Liu,Xiaoming Zhang,Wang Yang,Yanjie Wang,Ping Li,Xiaobin Lin,Pengjing Chen,Mingli Jiao
Covalent organic frameworks (COFs) have emerged as promising semiconductor-like photocatalysts, yet their efficiency is often hampered by insufficient active sites and rapid recombination of photogenerated charge carriers. A key challenge lies in the precise regulation of the electronic structure between donor and acceptor units to promote directional charge migration. To address this, we report a donor-monomer bisected molecular engineering strategy for constructing two novel isomeric 1D-CBTDA-COF and 2D-CBTDA-COF with distinct dimensionality. Both frameworks feature a donor–π–acceptor–π–donor (D–π–A–π–D) unit, wherein: (1) the carbazole donor units enable electron delocalization across the π-conjugated plane via lone-pair electrons on nitrogen, facilitating electron migration; (2) the thiadiazole acceptor units, with their electron-deficient nitrogen sites, capture and stabilize photogenerated electrons; (3) the Schiff-base C N linkages serve as electron-withdrawing π-bridges, which align with the desired electron transfer pathway from donor to acceptor, thereby accelerating charge separation. Compared to the 1D analogue, 2D-CBTDA-COF exhibits markedly enhanced photocatalytic activity in the thiocyanation of indole derivatives, which were attributed to its more excellent photoelectrical properties. It is explained that more extended and robuster π–π stacking network of 2D-CBTDA-COF can further suppresses charge recombination and promote interlayer carrier transport. This study demonstrates the critical role of electronic and structural dimensionality in COF photocatalysis and provides a rational design principle for advanced organic transformation catalysts.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）