JOURNAL OF FLUORESCENCE
·
2024
·
IF 2.6
Pang Shukui,Yu Yanchao,Yan Xuexue,Wu Mianyuan,Liu Qiye,Zu Panru,Wu Canyao
A novel coumarinylhydrazone fluorescent probe L was designed and synthesized from 4-(diethylamino)salicylaldehyde, its structure was characterized by NMR, IR. Fluorescence emission spectra showed that in ethanol solution, probe L could form a 1:1 complex L-Cu 2+ with Cu 2+ to realize the "turn-off" detection of Cu 2+ with high specificity and sensitivity (3.7 × 10 –7 mol/L). Meanwhile, the complex L-Cu 2+ had a specific fluorescence-enhanced response to HPO 4 2− with a detection limits down to 5.6 × 10 –7 mol/L and was resistant to the effects of many common anions (NO 2 − , N 3 − , CO 3 2− , SO 3 2− , HPO 4 2− , I − , Br − , F − , HCO 3 − , SO 4 2− , NO 3 − , Cl − , CH 3 COO − , Cr 2 O 7 2− , S 2 O 3 2− , P 2 O 7 4− ). Detection mechanism could be HPO 4 2− captured Cu 2+ of the complex and released the free ligand L. At last, the complex L-Cu 2+ was successfully applied to the determination of HPO 4 2− in different environmental water samples, and the spiked recoveries ranged from 98.05% to 108.18% and the relative standard deviations of 0.75% ~ 2.9%, which had good application prospects. Graphical A new coumarin acyl hydrazone fluorescent probe L was designed and synthesized, which could specifically recognize Cu2+ and HPO42- in a relay manner. In addition, the probe had good prospects for practical applications.
研究领域:
分析化学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Jinfeng Li,Tuo Li,Qianwen Wang,Bo Tian,Zhigang Li,Jianwei Zhang,Wenze Li,Wa Gao,Nan Zhang,Haifeng Gu,Hongtao Zhao
The development of high-efficiency adsorption materials for efficient removal of U(VI) from nuclear wastewater has become a concern of environmental protection. LDHs, as adsorbent materials, lack functional groups, resulting in low adsorption performance. Herein, a novel and excellent radiation stable HPO 4 2− -intercalated NiFe-LDH material (NiFe-LDH-P(x)) is synthesized by in-situ co-precipitation method. The effect of HPO 4 2− content on the U(VI) performance of NiFe-LDH-P(x) is studied in detail. The results reveal that intercalation of HPO 4 2− increases the interlayer spacing and specific surface area of NiFe-LDH, as well as the active sites between the interlayers. Therefore, NiFe-LDH-P(x) with moderate HPO 4 2− content (10 %) can reach highest U(VI) adsorption capacity (350.88 mg·g −1 ). FTIR, SEM and XPS analyses educe that the efficient adsorption of uranium on NiFe-LDH-P(10 %) is mainly attributed to complexation, electrostatic attraction and ion exchange. In summary, NiFe-LDH-P(10 %) has great potential in removing uranium from wastewater, which provides a new idea for the synthesis of efficient adsorbents.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Sustainable Systems
·
2026
·Vol. 10
·期 6
·e70537
·
IF 5.6
Pei Jia,Liangliang Peng,Rui Li,Sihua Hu,Jinbo Cao,Fusheng Zhong,Xingyan Lin,Qingqing Deng,Li Wang
Ochratoxin A (OTA) is very difficult to detect by conventional fluorescent technique directly due to its natural fluorescence is very weak. For the first time, it was found that in the presence of HPO 4 2− , the fluorescence intensity of OTA could be dramatically enhanced by more than 30-fold within the range of 0.025–0.45 µM. Based on this unique ability of HPO 4 2− , a novel fluorescent sensing platform for OTA was developed, which exhibited good sensitivity and high selectivity. The detection range for OTA was from 0.025 to 0.45 µM with a detection limit of 7.3 nM. The proposed method is direct, simple, rapid, sensitive, selective, and does not require any sophisticated procedures. Furthermore, this strategy can be extended to the fluorescent colorimetric detection of OTA. This study successfully established a robust, user-friendly analytical method, effectively addressing a key limitation in the direct fluorescent detection of OTA.
✓ 已验证
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2024
·
IF 2
Hongxiang Xu,Wentao Li,Junfeng Wang,Jiushuai Deng,Shangqing Chen
After the NaClO solution was used to purify acetylene gas, the solution contained significant amounts of NaCl, Na2SO4, and Na2HPO4. The phase equilibrium data is the most important basic information for recovering sodium salts. In this study, the solubilities and dry-salt phase diagram for the system (Na+//Cl–-SO42–-HPO42–-H2O) were systemically studied. The dry-salt phase diagram contained one invariable point, three univariate solubility curves, and three single salt crystallization regions corresponding to NaCl, Na2SO4, and Na2HPO4·12H2O at 298.15 K and 0.1 MPa. Based on the ELEC-NRTL and Pitzer model embedded in the Aspen Plus, the phase equilibrium data for the ternary subsystem (Na+//Cl–-SO42–-H2O, Na+//Cl–-HPO42–-H2O, and Na+//SO42–-HPO42–-H2O) at 298.15 K and 0.1 MPa taken from the literature were first predicted to verify the applicability of parameters from the default database and literature. Subsequently, the models were optimized by literature solubility data, and then, the obtained parameters can well predict the phase equilibrium data for the ternary subsystem at 298.15 K and 0.1 MPa. All of these will provide basis data for the separation of sodium salt from the Na+//Cl–-SO42–-HPO42–-H2O system.
研究领域:
化学工程
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123612
·
IF 7.5
Jinfeng Li,Qianwen Wang,Bo Tian,Zhigang Li,Nan Zhang,Jianwei Zhang,Wa Gao,Haijiao Xie,Haifeng Gu,Hongtao Zhao
Metal-organic framework (MOF)-based functionalized composites with enhanced properties are usually made by pre-functionalization and post-synthetic strategies. However, some reported modification methods still suffer from low modification degree and high energy consumption. Herein, a γ-irradiation-induced cationic MOF (NiBTAB-γ) is selected to be the host to encapsulate HPO 4 2- by an ion-exchange method as a novel strategy for MOF functionalization and for the first time applied to the uranium adsorption. The combination of the irradiation method and ion-exchange makes synthetic process much milder and more energy-efficient. The HPO 4 2- can substituted Cl - counterions in the void spaces, which creates abundant phosphate functional sites and maintains the structural integrity. Consequently, the resulting HPO 4 2- balanced MOF (PN-0.50) exhibits excellent adsorption performance for radioactive uranium with high adsorption capacity ( q max =342.0 mg/g at pH=5.0 and T = 298 K) and excellent selectivity. Electrostatic potential analyses and DFT calculations reveal that the introduction of HPO₄²⁻ not only optimizes the initial capture of uranium ions by enhancing the local negative electrostatic potential but also achieves stronger binding via strong chemical coordination bonds. This work provides new insight into the functionalized modification of MOFs for U(VI) removal from wastewater.
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2019
·
IF 1.795
Mei-Xiang Yang,Ming Liu,Mei Yang,Qin Wang,Xi Zeng,Zhu Tao,Xin Xiao,Ying Huang
In the present work, a well-known host–guest inclusion complex comprising a cucurbit[7]uril (Q[7]) and an important biological dye, Hoechst-33258 (H33258) was selected as a fluorescence probe. In contrast to the pH conditions in which H33258 is exhibited in the literature, these being, mono- or di-protonated states, in the present work, we selected an extreme case, whereby H33258 was displayed in an anionic state (pH = 11). The investigation of the host–guest interaction demonstrated similar inclusion modes in a wide pH range, that is the dumbbell-like inclusion complex in which one Q[7] includes piperazine moiety and another Q[7] includes the phenol moiety of H33258. Moreover, investigation on the binding capacity of the 15 selected anions under three representative pH levels (pH = 2, pH = 4.5 and pH = 11, respectively) indicated that the H33258@Q[7] probe displayed unique selectivity on HPO 4 2 − anion in medium at pH = 11. More importantly, the probe could open a new platform in Q[ n ]-chemistry, that is the Q[ n ]-based host–guest interaction systems can apply in anion recognition or response.
研究领域:
化学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2023
·
IF 4.4
Qian Jiang,Jian Song,Xiaoqin Yang,Xiaoping Rao,Ping Zhao,Zhonglong Wang
In this work, we focused on synthesizing a new fluorescent probe HBA based on caffeic acid for detecting Al 3+ /HPO 4 2− by the mode of “off-on-off”. HBA alone exhibited a weak fluorescence emission in aqueous solution. When Al 3+ was added into the HBA solution, a significant green fluorescence was found at 498 nm. However, the introduction of HPO 4 2− to the solution of [ HBA -Al 3+ ] complex induced the disappearance of green fluorescence. The detection limit of HBA was calculated as low as 41.7 nM for Al 3+ and 62.1 nM for HPO 4 2− , respectively. Probe HBA exhibited good cell-membrane penetrability and had the potential to trace Al 3+ /HPO 4 2− in biological systems.
研究领域:
生物化学
·
分析化学
·
细胞生物学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2025
·
IF 4.7
Xiaowen Zhou,Zhonglong Wang,Xiaoqin Yang,Xiaoping Rao,Ping Zhao,Qian Jiang
Cadmium ion (Cd²⁺) and phosphate hydrogen ion (HPO₄²⁻) are widely applied in our production and life, which are closely related to human health and environmental protection. Herein, leveraging the structural merits of isoborneol, a novel fluorescence probe IB-CdP has been designed and developed for sequential detection of Cd²⁺ and HPO₄²⁻. Upon interaction with Cd²⁺, IB-CdP exhibits a significant fluorescence enhancement at 530 nm, which is subsequently quenched by the addition of HPO₄²⁻. This probe achieves ultra-low detection limits (28.61 nM for Cd²⁺ and 30.89 nM for HPO₄²⁻) and rapid response times. In addition, practical applications results confirmed the reliability of probe IB-CdP in water samples analysis and cell imaging studies, demonstrating its extensive application in environmental monitoring and biomedical research.
研究领域:
环境监测
·
分析化学
·
生物医学成像
·
传感器与探针
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）