Journal of Materials Chemistry C
·
2026
·
IF 5.1
Cong Niu,Qingsong Zhang,Yulian Zhang,Qianqian Huang,Jinbao Chen,Xin Wang
Lead halide perovskite single crystals have demonstrated significant potential for X-ray and gamma-ray detection. While these high-energy photons generate charge carriers within the crystal, they also induce irradiation damage, a phenomenon that has not been extensively studied in these materials. In this work, we investigate the structural and charge transport properties of MAPbBr 2.5 Cl 0.5 perovskite single crystals under 50 kV X-ray irradiation. Transmission electron microscopy reveals that irradiation induces lattice defects. Furthermore, analyses via the space-charge-limited current and time-of-flight methods confirm that these defects increase trap density and reduce charge carrier mobility. The degradation of charge transport properties is also found to be strongly dependent on both the crystal orientation and the direction of the incident radiation. This study provides critical insights into the irradiation damage mechanisms in lead halide perovskite single crystals.
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高影响因子
PETROLEUM CHEMISTRY
·
2026
·Vol. 66
·期 1
·49-56
·
IF 1.1
Yu Hongyin,Zhao Rongxiang,Li Xiuping,Hou Liangpei
A deep eutectic solvents (DES) was synthesized by stirring mixture of 1-butyl-pyridinehydrochloride ([C 4 pyr]Cl) and oxalic acid (C 2 H 2 O 4 ) at 100°C. The [C 4 pyr]Cl/C 2 H 2 O 4 DES was characterized by FT-IR and 1 H NMR spectroscopy. This DES is capable of extracting thiophene-type sulfides due to the similar polarity of 1-butyl-pyridine and DBT. The –COOH groups within the [C 4 pyr]Cl/C 2 H 2 O 4 DES are readily oxidized to ‒COOOH by H 2 O 2 , which susequently catalyzes the thiophene oxidation into sulfone in the model oil. The higher polarity of sulfone compared to that of thiophone enhances their solubility in the solvent. When the V(DES)/V(model oil) = 0.2, T = 50°C, and O/S = 6, the DBT removal rate reached 98.6% within 80 min. The catalytic activity of [C 4 pyr]Cl/C 2 H 2 O 4 exhibited only a slight decrease after nine regeneration cycles. The apparent activation energy for DBT removal using [C 4 pyr]Cl/C 2 H 2 O 4 was 33.3 kJ/mol. Experimental results indicate that the low apparent activation energy contributes to the high desulfurization efficiency.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Yali Wang,Hongbao Ren,Ruizhi Cui,Bo Zhang,Qiuye Yang,Wu Li
A glycerol-water coordination method was developed to prepare high-pure KCl from K(Cl, Br) solid solutions. • Glycerol inhibits Br − from entering the KCl lattice. 30 wt% mixed solvent shows better separation performance. • KCl with 99.994% purity and 97.30% yield was obtained, while bromide was concentrated in the liquid phase. High-purity KCl is essential for semiconductors and laser crystals, yet even trace bromine severely compromises its performance. During the preparation of KCl via underground brine crystallization, Br − readily enters the KCl lattice to replace Cl − , forming crystals with a single-salt structure rather than a simple mixture. This makes it difficult to use conventional separation methods to produce high-purity KCl. To address this issue, this study proposes a separation strategy that involves intervening in the recrystallization process by regulating coordination interactions within the solvent system, thereby yielding ultra-pure potassium chloride. Systematic studies involving phase equilibrium experiments, solid-liquid phase characterization and molecular simulations indicate that as the number of hydroxyl groups in the alcohol molecule increases, the solvent's separation capacity increases accordingly, with glycerol exhibiting the best performance. As the simplest trihydric alcohol, glycerol's three hydroxyl groups create distinct solvation environments for Cl − and Br − , thereby inhibiting Br − from occupying the KCl lattice during the concentration and crystallization processes. Furthermore, the introduction of 30 wt% mass water inhibits intermolecular hydrogen bonding and self-aggregation of glycerol, releasing free coordination sites and significantly increasing the solubility of KCl in the system (from 1.7 wt% to 9.63 wt%), thereby further optimizing separation efficiency. The separation process, designed based on the phase diagram of the KCl − KBr − Gly(30 wt%) − H₂O system at 298.15 K, enables the efficient recovery of high-purity KCl (purity up to 99.9940%, recovery rate of 97.30%) and the simultaneous enrichment of bromine resources in the liquid phase (bromine content increased from 3.36 wt% to 44.30 wt%).
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高影响因子
Small
·
2026
·
IF 11.8
Yujie Song,Ya Guo,Ruibing Lv,Nan Wu,Xiaoqing Zhou,Shilong Hao,Hongzhen Li,Qi Zhang
Hierarchical homostructured core-shell architectures (HHCS) integrate the advantages of maintaining high energy density and enhancing interfacial stability. However, their rational design and controllable construction remain significantly challenging. Herein, we propose a self-limiting surface pseudomorphic replacement strategy mediated by localized solvation regulation, enabling the precise construction of HHCS of ε-2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (ε-CL-20). Specifically, a γ-butyrolactone (γ-BL)/H 2 O mixed solvent system induces a selective surface dissolution—recrystallization process on ε-CL-20 crystals, forming a stable CL-20∙γ-BL solvate (S γ-BL ) layer. This layer undergoes interfacially induced nucleation on the crystal surface and exhibits self-limiting growth while preserving the morphology of the parent crystal, thereby enabling a morphology-preserving pseudomorphic replacement process. Upon thermal treatment, solvent removal and solid-state rearrangement facilitate the conversion of the outer solvate shell into the CL-20 phase, yielding a homogeneous shell with hierarchical nanoporous features. The resulting HHCS of CL-20 exhibits a remarkable enhancement in safety performance: its impact sensitivity value increases from 2.5 to 12 J, while the packing density decreases by only 4.85%. Importantly, the core-shell structure consists solely of ε-CL-20, with no heterogeneous materials. This work presents an interfacial-engineering strategy that provides new theoretical and methodological insights for the safety-oriented design and structural regulation of high-energy molecular crystals.
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高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Huishuang Jiang,Yang Qu,Xianfa Zhang,Rui Gao,Xiaoli Cheng,Shan Gao,Lihua Huo,Zolt́an Major,Yingming Xu
As a poisonous and harmful gas, NO 2 , is not only harmful to the environment, but also detrimental to human health. In this work, ionic liquids (1-hexadecyl-3-methylimidazolium chloride [C 16 Mim] Cl) were selected as dopants to prepare flower-like Cl uniform doped In 2 O 3 nanomaterials. The material exhibits excellent sensing performance to NO 2 under UV light because of Cl uniform doped. Compared with the experiment in dark conditions, the response value of the sensor to 5 ppm NO 2 under UV light is approximately two times higher (S = 425.9) and presents a faster recovery rate (69 s). Chlorine doping shifts the valence band of the material upwards, facilitating the photogenerated electron leap under UV illumination. Moreover, the in-situ DRIFT under UV light were employed to verify the interaction between the materials and NO 2 gas in N 2 , air and O 2 atmospheres respectively. It was found that the presence of oxygen in the environment affects the adsorption of NO 2 on the surface of the Cl doped In 2 O 3 material. This work is of great significance to the sensing mechanism investigation of photo-activated NO 2 gas sensors.
研究领域:
材料科学
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环境科学
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高影响因子
NANOTECHNOLOGY
·
2019
·Vol. 31
·期 6
·065603
·
IF 3.399
Chun Sun,Le Wang,Sijing Su,Zhiyuan Gao,Hua Wu,Zi-hui Zhang,Wengang Bi
White light-emitting diodes (WLEDs) based on all-inorganic perovskite CsPbX3 (X = Cl, Br, I) quantum dots (QDs) have attracted much attention and rely on mixing several colors of perovskites. However, this inevitably leads to a non-uniform light distribution and serious light loss. Here, a novel strategy was demonstrated to obtain white emission by combining the orange and blue emission from CsPb/Mn(Cl/Br)3 QDs. Notably, highly efficient white emission with a photoluminescence quantum yield of 94% was achieved by an anion exchange surface engineering (AESE) strategy. After AESE treatment the surface traps can be eliminated, resulting in improved exciton and Mn2+ emission. A prototype WLED device was fabricated and exhibited excellent optical stability, demonstrating great potential for perovskite QDs in the field of optoelectronics.
研究领域:
材料科学
·
光学工程
·
电子与通信技术
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PubMed
高影响因子
DYES AND PIGMENTS
·
2025
·
IF 4.2
Hao Xue,Hong Zheng,Jing Xiang,Ke Cheng,Biyue Zhu
In this work, using discarded white pomelo peel as the green precursor and hydrochloric acid (HCl) as the dopant, water-soluble Cl-N-doped carbon dots (Cl-NCDs) with excellent performance were synthesized by one-step hydrothermal method. The Cl-NCDs function as both luminescent agents and catalysts, significantly enhancing the chemiluminescence intensity of the HCl-HCHO-KMnO 4 system, forming a novel HCl-HCHO-(Cl-NCDs)-KMnO 4 chemiluminescence system. The addition of erythromycin (EM) solution inhibits the chemiluminescence intensity of new system. By optimizing the conditions, we established a simple, cost-effective, and reliable chemiluminescence method for EM detection, offering a linear range of 5-100 μM and a detection limit of 0.0149 μM. In addition, this method was successfully applied to the analysis of EM in various water simples, achieving recovery rates ranging from 97.6% to 106%.
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ENVIRONMENTAL TECHNOLOGY
·
2019
·
IF 1.918
Yao Kun,Jia Manke,Wu Huanhuan,Li Yonggang,Chen Chuncheng,Huang Yingping
Cl− in industrial wastewater from glyphosate production has been used as Cl source to synthesize BiOCl photocatalyst via a simple solvothermal route. The crystalline, morphology, specific surface area and optical properties of photocatalysts prepared under various conditions have been investigated. BiOCl photocatalyst prepared in acidic solution shows the highest crystallinity and without impurities and microcellular structure. The degradation of industrial wastewater contaminants demonstrates the possibility of this BiOCl used in industrial wastewater treatment and phosphorus recycling through the subsequent phosphorus recovery processes. This study not only sheds light on the possibility of photocatalysts’ preparation in situ using industrial wasterwater as raw materials and the feasibility of using photocatalysis technology in wastewater treatment area, but also the chloride ions have been removed as an available resource and the corrosion to treatment facilities has been slowed down. The phosphorus and nitrogen resources can be recycled by other subsequent recycle recoveries. It offers a novel way for the wastewater treatment process in succession from photocatalysts’ manufacture to contaminants disposal.
研究领域:
环境科学
·
材料科学
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PubMed
高影响因子
JOURNAL OF INFECTION
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2022
·
IF 38.637
Zhuo-Er Qiu,Lei Chen,Xiao-Chun Hou,Jie Sheng,Jian-Bang Xu,Jia-Wen Xu,Dong-Dong Gao,Ze-Xin Huang,Tian-Lun Lei,Zi-Yang Huang,Lei Peng,Hai-Long Yang,Qin-Hua Lin,Yun-Xin Zhu,Wei-Jie Guan,Zhao-Rong Lun,Wen-Liang Zhou,Yi-Lin Zhang
Summary Toxoplasma gondii is a widespread parasitic protozoan causing toxoplasmosis including pulmonary toxoplasmosis. As the first line of host defense, airway epithelial cells play critical roles in orchestrating pulmonary innate immunity. However, the mechanism underlying the airway inflammation induced by the T. gondii infection remains largely unclear. This study demonstrated that after infection with T. gondii , the major anion channel located in the apical membranes of airway epithelial cells, cystic fibrosis transmembrane conductance regulator (CFTR), was degraded by the parasite-secreted cysteine proteases. The intracellular Cl − concentration ([Cl − ] i ) was consequently elevated, leading to activation of nuclear factor-κB (NF-κB) signaling via serum/glucocorticoid regulated kinase 1. Furthermore, the heightened [Cl − ] i and activated NF-κB signaling could be sustained in a positive feedback regulatory manner resulting from decreased intracellular cAMP level through NF-κB-mediated up-regulation of phosphodiesterase 4. Conversely, the sulfur-containing compound allicin conferred anti-inflammatory effects on pulmonary toxoplasmosis by decreasing [Cl − ] i via activation of CFTR. These results suggest that the intracellular Cl − dynamically modulated by T. gondii mediates sustained airway inflammation, which provides a potential therapeutic target against pulmonary toxoplasmosis.
研究领域:
传染病学
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免疫学
·
呼吸病学
·
寄生虫学
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
·
IF 6.371
Xing Yang,Jun Guo,Zi-Yuan Wang,Wen-Hao Gu,Quan Shan,Jing Feng,Zhen-Hua Ge
Bi 2 S 3 -based materials with low thermal conductivity and high Seebeck coefficient has been regarded as promising thermoelectric materials for years. To optimize the thermoelectric properties of Bi 2 S 3 materials, (Se, Cl)-co-doped nanostructured Bi 2 S 3 bulks were prepared by hydrothermal method combined with spark plasma sintering . The doping contents of Se and Cl in Bi 2 S 3 depend on the reaction time of the hydrothermal process. A high power factor of 450 μWm −1 K −2 was achieved for Bi 2 S 3 sample with the reaction time of 24 h owing to the substitution of S by Se and Cl. Meanwhile, a low thermal conductivity of 0.35 Wm −1 K −1 is obtained for the Bi 2 S 3 sample with the reaction time of 18 h, owing to the strong phonon scattering caused by the high density of grain boundaries, pores and point defect . Therefore, benefiting from the improved electrical transport properties and reduced thermal conductivity, a peak ZT value of ~ 0.57 was obtained at 673 K for the Bi 2 S 3 sample with the reaction time of 24 h.
研究领域:
材料科学
·
热电材料
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高影响因子
Journal of Physical Chemistry C
·
2022
·
IF 4.177
Shuoshuo Zang,Guoqing Xu,Renci Yang,Qinyi Zhu,Hewen Liu
It is still challenging to achieve both good stability and high PLQYs for perovskite NCs because of their ionic nature and structural defects. In this work, tungstosilicic acid (TSA) is used for the surface passivation of cesium lead halide perovskite NCs. Near-unity PLQY is achieved for CsPbBr3 NCs after surface passivation with a suitable amount of TSA. XRD in conjunction with XPS analysis shows that TSA binds hydrophobic chains of OAm onto the surface of CsPbBr3 NCs. XPS results also demonstrate that TSA passivation can change the charge distribution of the cations on the surface layers, which can enhance the interaction with surface traps. PL decay analysis reveals that trap states arising from the surface defects are significantly decreased after TSA passivation. TSA-passivated CsPbBr3 NCs demonstrate long-term ambient stability and good resistances to polar solvents and maintain about 80% of their initial PL intensity after storage under ambient conditions for 50 days. It is further found that TSA passivation is able to improve the PLQYs of a broad spectrum of CsPbX3 (X = Cl, Br, I) NCs without hindering the tunability of the band gaps and PL colors of CsPbX3 NCs via anion exchange.
研究领域:
材料科学
·
纳米技术
·
光电技术
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 33
·期 4
·2208841
·
IF 19.924
Jinshuai Zhang,Chun Li,Yin Liang,Jiepeng Song,Qiuyu Shang,Liyun Zhao,Huifeng Tian,Lei Liu,Qing Zhang
Suspended nano/microstructures on semiconductor surfaces that can manage light are attractive for various on-chip and efficiency-enhanced optoelectronics. Hybrid halide perovskites have shown considerable potential for optoelectronic and photonic applications. However, the ionic and soft lattices of perovskites are sensitive to polar solvents, photons, and heat, limiting the post-processing of suspended microstructures. Herein, a solution-processed selective area homoepitaxial growth (SAEG) method is introduced to create well-ordered, suspended microstructure arrays on the surface of MAPbX 3 (X = Br, Cl) single-crystalline thin films. The suspended micro-arrays exhibit single crystalline structures and 11.2 fold photoluminescence enhancement compared to the thin-film substrates. The success of SAEG lies in the making use of perovskite supersaturated HX aqueous solutions that not only repair surface defects induced by lithography but also satisfy homoepitaxial growth kinetics. This study paves a pathway for the fabrication of cost-effective perovskite surface-suspended microstructures for efficiency-enhanced and on-chip optoelectronic devices.
研究领域:
材料科学
·
光学
·
半导体技术
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高影响因子
危险品化学品经营许可证（带存储）