JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2024
·
IF 11.2
Xiaotu Yang,Zihao Yue,Ruixiang Deng,Zhengliang Zhang,Tao Zhang,Lixin Song
Stability hinders further development of all-inorganic CsPb X 3 ( X = Cl, Br, I) quantum dots (QDs) although they exhibit promising prospects in optoelectronic applications. Coating perovskite quantum dots (PQDs) with a glass network to form QD glass can significantly improve their stability. However, the dense glass network degrades their luminescent performance. In this work, the crystallization behavior of PQDs in glass and better luminescence properties are prompted by introducing titanium dioxide into borosilicate glass. The luminescence intensity of TiO 2 -doped CsPbBr 3 QD glass is increased by 1.6 times and the PLQY is increased from 49.8 % to 79 % compared to the undoped glass. Evidence proves that the improved properties are attributed to the enhanced nucleation effect of titanium dioxide during the annealing process. Benefiting from the densification of the glass network caused by titanium dioxide doping, the stability of the PQD glass is further improved. LED devices with an ultra-wide color gamut that fully covers the NTSC1953 standard and achieves 128.6 % of the NTSC1953 standard as well as 91.1 % of the Rec.2020 standard were fabricated by coupling PQD glass powder, demonstrating promising commercial applications of PQD glass in optoelectronic displays.
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高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2025
·
IF 2.1
Ruxue Yao,Yang Ge,Jiangtao Song,Fei Yuan,Yafei Guo,Tianlong Deng
The Qaidam Basin has potassium- and calcium-rich oil field brine resources at high temperatures. Since the phase diagram is a powerful tool to guide the separation and purification of inorganic chemical engineering for the development of potassium resources in oil field brine, the quaternary oil field brine system (Na+, K+, Ca2+//Cl– -H2O) and its two subsystems ((Na+, Ca2+//Cl– -H2O) and (K+, Ca2+, //Cl– -H2O)) at 338.15 K were reported for the first time by the isothermal dissolution equilibrium method. The compositions of the equilibrium solid phases were analyzed and identified by combined chemical analyzing and X-ray diffraction. The quaternary system has four crystallized regions corresponding to NaCl, KCl, KCl·CaCl2, and CaCl2·2H2O at 338.15 K, and the incongruent double salt KCl·CaCl2 occurred at 338.15 K. The study facilitates the enrichment of thermodynamic data and exploits brine-based potassium resources.
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高影响因子
Analytical Methods
·
2016
·Vol. 8
·期 44
·7929-7936
·
IF 1.915
Liling Hao,Huajie Gu,Nuo Duan,Shijia Wu,Zhouping Wang
In this study, a highly sensitive and specific multiplex chemiluminescent method for the simultaneous detection of three antibiotics was fabricated. Thiolated hybridized complementary strand (cDNA) modified N-(4-aminobutyl)-N-ethylisoluminol (ABEI) functionalized flowerlike gold nanostructures (AuNFs) were used as signal probes. Oxytetracycline (OTC), tetracycline (TET) and kanamycin (Kana) aptamers that were fixed onto the bottom of microtiter plates were used as recognition molecules. Targets and signal probes can competitively combine with the fixed aptamers. Thus, OTC, TET and Kana can be simultaneously detected based on an ABEI–H2O2–P-iodophenol (PIP) steady-state chemiluminescence (CL) system and the CL intensity is related to the negative logarithm of the concentrations of OTC/TET/Kana, respectively. The ranges are 0.05 to 5 ng mL−1, 0.05 to 5 ng mL−1, and 0.005 to 0.5 ng mL−1, and the detection limits are 0.02, 0.02 and 0.002 ng mL−1 (S/N = 3), respectively. The capability of the bioassay in milk was also studied using the standard addition recovery method, and the results showed a good consistency with the ones that were obtained from a commercial ELISA method. Owing to the advantages of a simple operation procedure, and excellent selectivity and specificity, the proposed biosensor demonstrated great potential in the application of food safety and multiplex nanosensors.
研究领域:
分析化学
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食品安全
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纳米技术
·
生物传感器
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2019
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IF 3.375
Hao Zhang,Hanxiao Zheng,Ying Wang,Runhua Yan,Dingyuan Luo,Wei Jiang
Petal bismuth salt semiconductors are promising as visible-light-driven photocatalysts, but their short service times due to strong oxidation limit their application. In this research, the in situ construction of a p–n heterojunction, by growing BiOX on a KBiO3 surface, is used as a strategy to improve the performance and stability. Evaluation of the photocatalytic degradation of crystal violet and phenol shows that the KBiO3/BiOX (X = Cl, Br, I) heterostructures exhibit significant improvement in photocatalytic performance and stability compared to KBiO3. The best one, KBiO3/(5.85%) BiOI, shows 98% degradation of crystal violet within 20 min, and of phenol within 1.5 h. No significant performance decay can be detected after repeated use. The development of KBiO3/BiOX heterostructure improves the applicability of KBiO3 as an efficient visible-light-driven photocatalyst.
研究领域:
材料科学
·
环境科学
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jiahui Li,Fulin Li,Yunzheng Li,Yuqing Wan,Xingran Xu,Xiang Zou
[diOTMG]Cl@Zr-bptc porous liquid (PL) was successfully prepared. • PL enhanced succinic acid yield 8.71-fold compared to organic amine. • 99.98% pure succinic acid was obtained by PL extraction and crystallization. • Carboxylic acids are separated via affinity and molecular size differences. Global environmental deterioration and plastic pollution drive the demand for biodegradable polymers, which rely on ultrapure monomer, such as succinic acid (SA). However, current bio-SA purification suffers from low purity (94–98%) and complex multistep processes due to similar affinity of homologues. Here, we introduce a type III porous liquid (PL) composed of ionic liquid [diOTMG]Cl and metal-organic framework Zr-bptc for SA purification, achieving 99.98 ± 0.01 wt% SA purity with 84.15% yield after crystallization. This represents an 8.71-fold yield increase in yield and 6.55-fold improvement in selectivity over tri-n-octylamine. Laboratory-scale assessment confirms the PL solution as a sustainable process. Mechanistically, carboxylic acids are extracted synergistically through hydrogen bonding/anion exchange, while Grand Canonical Monte Carlo (GCMC) simulations showed selective adsorption of acetic acid in Zr-bptc pores. Weak interactions and kinetic size sieving ensure high SA purity. This PL provides an efficient solution for producing polymer-grade monomers, addressing the long-standing challenge in fermented homologue separation. Download: Download high-res image (122KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Huanfeng He,Xin Li,Muhammad Fahim,Sai Liu,Irum Firdous,Tsz Chung Ho,Chi Yan Tso
Systematic Br/Cl doping in 2D perovskite TMPI establishes a detailed composition-property database. • Optimal Cl doping (I: Cl = 4:1) enhances solar modulation ability ( Δτsol ) to 27.7%. • Br doping effectively reduces the transition temperature of 2D perovskite to near 40 °C for practical use. • First-principles calculations reveal that water adsorption energy governs transition properties. Buildings account for a large portion of global energy consumption, driving the need for smart windows that can dynamically regulate solar heat. Two-dimensional (2D) thermochromic perovskites offer promising stability, but their practical application is limited by high transition temperatures and modest solar modulation ability. Here, we employ halide engineering via systematic Br/Cl doping in the 2D perovskite Tha 2 MAPbI 4 (TMPI) to optimize these key properties. A systematic Br/Cl doping was conducted in TMPI and established a detailed composition-property database. It is found that optimal Cl doping (I: Cl = 4:1) enhances the solar modulation ability ( Δτ sol ) to 27.7%, while Br doping effectively lowers the transition temperature to near 40 °C. Most importantly, a High-Resolution Transmission Electron Microscope (HRTEM) was employed to characterize the crystallization of 2D perovskites with different halogen dopants, providing the first atomic-scale observation of lattice fringes and SAED patterns in thermochromic metal halide perovskites and revealing the doping-dependent crystallinity evolution. Moreover, first-principles calculations reveal that enhanced water adsorption energy on doped perovskite surfaces governs the reduced transition temperature and faster response kinetics. A real-world model house demonstration confirms the superior cooling performance of the optimized smart window. This work provides not only high-performance material candidates but also a fundamental mechanistic framework for developing energy-efficient, responsive smart windows.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Yuxin Gong,Mengyu Fu,Yingmin Jin,Yumeng Li,Ruifan Lin,Yong Zhang,Lei Lei,Ying Zhang,Changsong Dai,Yueping Xiong
Halide solid-state electrolytes (HSSEs), exemplified by low-cost Li 2 ZrCl 6 , exhibit high ionic conductivity and a wide electrochemical stability window, making them promising for all-solid-state batteries (ASSBs). Yet, optimizing HSSEs by elemental doping is either inefficient or costly, necessitating alternative approaches. Inspired by the filler-modified LiI-Al 2 O 3 system with fast-conductive interfacial percolation layer (IPL) and with regard to the underlying insufficient interfacial filler/electrolyte contact with Li 2 ZrCl 6 matrix, which hinders the IPL formation, the use of transition metal oxide Fe 2 O 3 is pioneered as a filler to generate oxygen vacancies and foster benign filler/electrolyte interfaces. At the Fe 2 O 3 /electrolyte interface, synchrotron X-ray adsorption spectra and electron energy loss spectra mapping reveal a distinctive O-Cl exchange reaction and improved interfacial contact. Density function theory, bond-valence site energy calculations, and finite-element simulations validate improved Li + migration via mitigated electrostatic confinement, reduced migration energy barriers, and spatially confined electric-field-accelerated IPLs. Benefiting from these merits, the ionic conductivity of the composite electrolyte surges from 0.4 to 2.15 mS cm −1 , with Li + migration activation energy reduced to 0.28 eV. Paired with the NCM811 cathode, the ASSB delivers 90% capacity retention over 1000 cycles at 0.5 C. This work offers a novel, cost-effective strategy for high-performance halide-oxide composite electrolytes from the counterintuitive perspective of nanofiller integration.
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高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Junyuan Shi,Jun Wu,Yunkai Zhang,Jingqi Wang,Siting Peng,Wendi Xiao,Yafei Hou,Da Chen
Dual-excitation N, Cl-CDs are synthesized for ratiometric RIF sensing. • Ratiometric detection of RIF is achieved with a detection limit of 58 nM. • The sensing mechanism involves synergistic IFE and FRET. • A smartphone integrated finger-actuated microfluidic device enables on-site visual RIF detection. • The platform exhibits satisfactory recovery in aquatic product samples. The increasing environmental prevalence of the antibiotic rifampicin (RIF) poses potential hazards to public health and ecological stability. Herein, a novel ratiometric assay is established by utilizing the dual-excitation nitrogen and chlorine co-doped carbon dots (N, Cl-CDs) for the quantification of trace amounts of RIF. Benefiting from the synergistic effects of the inner filter effect and Förster resonance energy transfer, the N, Cl-CDs act as a sensitive nanoprobe for RIF detection over a concentration range of 0.058–35 μM, with a detection limit of 58 nM. Furthermore, a novel finger-actuated microfluidic sensing platform has been developed through the integration of N, Cl-CDs. By combining the dual-excitation property of the probe with a smartphone-based RGB readout, the platform achieves on-site and visual quantification of RIF in real samples, as validated by high recovery rates ranging from 98.8% to 101.0%. Therefore, this work offers an innovative strategy for RIF sensing and establishes a versatile platform boasting prominent prospects for on-site food safety monitoring. Download: Download high-res image (150KB) Download: Download full-size image
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Jiaxin Wang,Yingjian Wu,Ying Liu,Jun Liu,Baozhong Zhu,Yunlan Sun
Dichloromethane (DCM), a widely used industrial solvent, represents a primary anthropogenic source of chlorine-containing volatile organic compounds (Cl-VOCs). The adsorption of DCM is usually impeded by the irregular pore structure of commercial activated carbon. To address this limitation, this study developed Fe 3+ modified zeolite-templated carbons (ZTC) for DCM removal at ambient temperature. Comprehensive characterization through BET, XRD, Raman, SEM, TG/DTG, XPS, and NH 3 -TPD confirmed the uniform distribution of Fe 3+ within the ZTC pore channels and revealed its significant impact on surface functional groups and acid sites. The optimized 3 % Fe@ZTC adsorbent demonstrated markedly enhanced performance, achieving a DCM adsorption capacity of 227.9 mg·g −1 at 25 °C. Furthermore, it exhibited excellent regenerability, maintaining 70.2 % of its initial capacity after three regeneration cycles at 500 °C. Density Functional Theory (DFT) calculations provided mechanistic insights, showing that Fe 3+ modification substantially increased the adsorption energy from 0.90 eV on raw ZTC to 3.56 eV on Fe@ZTC. This enhancement was attributed to uniform Fe 3+ doping, which created hard acid sites that strongly interacted with the hard base site (Cl) of DCM molecules, facilitating Fe-Cl bond formation and substantial charge transfer. This work presents a viable strategy for developing efficient adsorbents for DCM removal from industrial waste gases.
研究领域:
环境科学
·
材料科学
·
吸附技术
·
计算化学
·
空气污染控制
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高影响因子
Advanced Membranes
·
2025
·
IF 9.5
Wenlong Ding,Haoyu Liu,Jiayi Liao,Tongtong Wang,Dongze Li,Yu Xu,Shiyu Zhou,Zhiqiang Wu,Wenhui Shi,Jiangnan Shen,Junbin Liao
Construction of homogeneous polymer ion-exchange membranes (IEMs) with suitable ion transport channels and stable structures is crucial to the separation of mono-/multi-valent anions. Amphoteric ion-exchange membrane (AIEM) is a special type of IEM that possesses unique properties due to the presence of both anion exchange groups and cation exchange groups. In this work, we have grafted 1-bromoheptane and 3-bromopropanesulfonate onto the poly(aryl ether sulfone) chain through nucleophilic substitution reactions. Unlike the IEM attaching different ion-change functional groups onto one side-chain, this kind of AIEM bears two kinds of ion-change functional groups on dual side-chains. The results show that the as-prepared AIEMs could maintain low water absorption (< 20%) and swelling ratios (< 11%). The optimal surface area resistance is 6.31 Ω∙cm 2 . The perm-selectivity (Cl − /SO 4 2− ) of the optimized PAES-TA/BS-0.85 AIEMs in a binary mixed solution system at 2.5 mA∙cm 2 could be achieved as high as 67.46, which is much higher than commercial ACS IEMs under the same conditions. Small Angle X-ray scattering reveals a distinct phase separation pattern within the AIEM matrix, which is due to the introduction of sulfonates to increase the hydrophilicity of the side-chains. The combined effects of pore size screening and electrostatic repulsion render the high selectivity of as-prepared AIEMs.
研究领域:
材料科学
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化学工程
·
膜技术
·
电化学
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高影响因子
DESALINATION
·
2025
·
IF 9.8
Hailin Chang,Shilei Fu,Ziao Zhang,Yating Hu,Zijian Cui,Jun Ma,Kexin Hou,Xiaobin Tang,Guibai Li,Heng Liang
Nanofiltration (NF) membranes with efficient selectivity are critical for addressing water source pollution from toxic heavy metals and emerging micropollutants. Herein, we engineered a polyamide (PA) NF membrane with ambidextrous selectivity by leveraging the concentration-driven effect of piperazine (PIP) during interfacial polymerization (IP). This PIP concentration-driven effect was verified by modulating the PIP concentration gradient from low to high, which enhanced IP efficiency via both an intensified alkaline reaction environment and concentration-driven diffusion. The optimized NF membrane features an ultrafine pore size distribution and reduced electronegativity, exhibiting a remarkable shift from sole SO 4 2− /Cl − selectivity to impressive ambidextrous selectivity, encompassing both SO 4 2− /Cl − (α ≈ 48, 98.3 % for Na 2 SO 4 ) and Mg 2+ /Na + (α ≈ 37, 98.2 % for MgCl 2 ). Moreover, it membrane also achieved exceptional removal efficiencies of 94.8–98.9 % for heavy metals and 77.6–99.3 % for antibiotics, while maintaining a water permeability of 19.3 L/m 2 h bar and mitigating the perm-selectivity trade-off. When purifying surface water containing heavy metals and antibiotics, the optimized NF membrane exhibited superior multi-pollutant removal and improved water production quality compared to the NF270 and NF90 membranes, and especially with its water permeance increased by ~27 % to 179 %. Our work uncovers a fundamental correlation between the PIP concentration, IP reaction, PA nanostructures and NF performance, providing valuable insights into customizing high-performance NF membranes to address complex water pollution challenges.
研究领域:
环境工程
·
膜科学
·
水处理
·
高分子化学
·
纳米技术
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高影响因子
LUMINESCENCE
·
2025
·Vol. 40
·期 4
·e70175
·
IF 3
Jiaoyan Xie,Suqin Han
Folic acid (FA) is a crucial B vitamin for cell formation and maintenance, and its deficiency can lead to severe health disorders, highlighting the importance for accurate FA detection. Chemiluminescence (CL) provides a highly sensitive analytical approach, characterized by simple instrumentation, high accuracy, and low background interference. However, traditional CL techniques are often limited by weak signal intensity and poor robustness. This study presents a novel CL system using well-defined fluorescent Cl, S, N co-doped carbon dots (ClSN-CDs) integrated into the H 2 O 2 -KBrO 3 system. Under acidic conditions, the synergistic effect of H 2 O 2 and KBrO 3 induced ClSN-CDs to emit a strong CL signal, with the emitting species identified as excited-state ClSN-CDs. Trace amounts of FA significantly quenched the CL intensity of the ClSN-CDs-H 2 O 2 -KBrO 3 system, enabling rapid, sensitive, and selective FA detection. The system demonstrated a linear response to FA concentrations ranging from 0.02 to 1.0 μM, with a detection limit of 3.1 nM. Selectivity and recovery studies validated the system's robust analytical performance. Mechanistic investigations revealed that the CL reaction involved reactive oxygen species (ROS), and FA-mediated ROS consumption led to luminescence suppression.
研究领域:
分析化学
·
营养学
·
食品科学
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）