CHEMICAL ENGINEERING SCIENCE
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2025
·
IF 4.3
Yasen Dai,Xiaolei Song,Zerou Wang,Shuhang Ren,Yucui Hou,Weize Wu
Hydrogen sulfide (H 2 S) is a highly toxic and corrosive pollutant threatening human health and the environment. Ionic liquids (ILs) are widely used for H 2 S capture, but existing research focuses on conventional or alkaline functional ILs with low capacity or high energy consumption. This work synthesizes a novel oxidative functional IL, tetraethylammonium metavanadate ([N 2222 ][VO 3 ]), for dilute H 2 S absorption. With [Bmim][BF 4 ] as solvent, the mixture absorbs 1.13 mol H 2 S/mol IL at 50 °C and 0.005 MPa partial pressure. The IL mixture converts H 2 S to sulfur and water in situ and regenerates completely with oxygen at 80 °C for five cycles without capacity loss. Characterization and DFT calculations confirm vanadium’s key role in oxidative absorption, changing from V 5+ to V 3+ . The mechanism is verified at the molecular level. The mild regeneration temperature and sulfur recovery offer a scalable solution for low-energy desulfurization processes.
研究领域:
环境科学
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化学工程
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材料科学
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物理化学
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产品关联
DOI
高影响因子
Journal of Inorganic and Organometallic Polymers and Materials
·
2019
·Vol. 29
·期 6
·2124-2132
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IF 1.637
Wang Zirui,Wang Xinyu,Li Jingfang,Li Weizuo,Li Guangming
In this work, a facile and fast luminescence sensing platform for the ratiometric detection of hydrogen sulfide (H 2 S/HS − ) has been constructed by encapsulating the Eu 3+ /β-diketone chromophore into the host framework of MIL-140 (Eu 3+ /TFA@MIL-140C, TFA = 1,1,1-Trifluoro-2,4-pentanedione). It is well known that the energy transfer from the host framework or/and TFA to the Eu 3+ ions can be disturbed easily by some metal ions, such as Cu 2+ ions. Therefore, the ratiometric sensor was constituted with the Eu 3+ /β-diketone moiety as the response signal and the host framework moiety as the reference signal. Furthermore, on the basis of the hard–soft acid–base theory, the Cu 2+ ions could be rapidly caught by HS − , profiting from the low solubility of CuS, realizing the real-time detection by luminescence color change. This sensor shows remarkable property on the detection of H 2 S (HS − in water solution) with low limit of detection (LOD = 7.43 μM) and short response time (< 0.5 min). The good linearity between luminescent intensity and concentration makes the luminescent ratio meter feasible.
研究领域:
材料科学
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分析化学
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环境科学
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DOI
高影响因子
BMC PLANT BIOLOGY
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2022
·Vol. 22
·期 1
·1-14
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IF 5.26
Cheng Pengfei,Feng Liying,Zhang Shuoyu,Li Longna,Guan Rongzhan,Long Weihua,Xian Zhihui,Zhang Jiefu,Shen Wenbiao
Background Cold stress adversely influences rapeseeds ( Brassica napus L.) growth and yield during winter and spring seasons. Hydrogen (H 2 ) is a potential gasotransmitter that is used to enhance tolerance against abiotic stress, including cold stress. However, convenience and stability are two crucial limiting factors upon the application of H 2 in field agriculture. To explore the application of H 2 in field, here we evaluated the role of ammonia borane (AB), a new candidate for a H 2 donor produced by industrial chemical production, in plant cold tolerance. Results The application with AB could obviously alleviate the inhibition of rapeseed seedling growth and reduce the oxidative damage caused by cold stress. The above physiological process was closely related to the increased antioxidant enzyme system and reestablished redox homeostasis. Importantly, cold stress-triggered endogenous H 2 S biosynthesis was further stimulated by AB addition. The removal or inhibition of H 2 S synthesis significantly abolished plant tolerance against cold stress elicited by AB. Further field experiments demonstrated that the phenotypic and physiological performances of rapeseed plants after challenged with cold stress in the winter and early spring seasons were significantly improved by administration with AB. Particularly, the most studied cold-stress response pathway, the ICE1-CBF-COR transcriptional cascade, was significantly up-regulated either. Conclusion Overall, this study clearly observed the evidence that AB-increased tolerance against cold stress could be suitable for using in field agriculture by stimulation of H 2 S signaling.
研究领域:
植物学
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农业科学
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DOI
高影响因子
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
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2016
·Vol. 22
·期 3
·327-334
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IF 1.87
Liu Dongjing,Zhou Weiguo,Wu Jiang
Perovskite LaMnO 3 /ZSM-5 was used for reactive adsorption of hydrogen sulfide at 500–700 °C. The sorbents showed good desulphurization performance, the highest sulfur capacity of 1020 µmol S/g over 5La5Mn/ZSM-5 was obtained at 600 °C. The reducing gases (H 2 and CO) can obviously shorten the breakthrough time and reduce the sulfur capacity. Incorporating Mn ions into La 2 O 3 lattice improved the sulfidation activity due to the formation of perovskite LaMnO 3 with good reducibility and structure stability.
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
GREEN CHEMISTRY
·
2025
·
IF 9.2
Keyi Huang,Chengqi Zhao,Zixuan Xu,Qing Zhao,Huiqin Xu,Xiaomin Zhang,leizhi zheng,You-Ting Wu
The efficient capture and conversion of hydrogen sulfide (H2S) represent a critical challenge in addressing key issues in energy and environmental fields. In this study, we innovatively designed and synthesized a series of carbonyl-functionalized metallic ionic liquids (CMILs), which exhibit dual functionality as both absorbents and catalysts under mild conditions. Experimental results demonstrate that the [Na-15C][LA] system delivers outstanding performance under ambient conditions (30 ℃, 1.0 bar), achieving an H 2 S absorption capacity of 1.73 mol/mol, H 2 S/CO 2 selectivity of 101.2, and an exceptionally high H 2 S/CH 4 selectivity of 1122.2. NMR, FT-IR, and DFT calculations confirm that the carbonyl group serves as the active site for efficient H 2 S capture.Notably, these CMILs function as highly effective catalysts, facilitating the solvent-free conversion 2 of H 2 S with α, β-unsaturated carboxylates into thiols and thioethers under mild conditions. Moreover, the system enables spontaneous phase separation between the catalyst and products without requiring additional components, achieving quantitative conversion (> 99%) while adhering to green chemistry principles. This integrated design provides a novel technical approach for the efficient capture and resource utilization of H2S.
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产品关联
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2025
·
IF 8.4
Ze Deng,Jiajia Cheng,Yaqi Zhang,Yue Zhao,Zimin Wei,Caihong Song
The composting of livestock manure produces a significant amount of hydrogen sulfide (H 2 S), which can cause environmental pollution. This has become a substantial impediment to the advancement of the composting industry. In this study, Cystathionine gamma-lyase (CSE) and Cystathionine beta-synthase (CBS) enzymes were explored from the perspective of endogenous H 2 S production. This study investigated aminooxyacetic acid (AOAA) and DL-propargylglycine (PAG) as enzyme inhibitors in composting to assess the feasibility and effectiveness of H 2 S emission reduction from chicken and swine manure. The results showed that the treatment groups reduced the cumulative H 2 S emissions by a minimum of 33.52% and a maximum of 72.11%. The CSE and CBS-mediated H 2 S production reaction was inhibited by AOAA and PAG, which resulted in a significant reduction ( P < 0.05) in H 2 S emission during composting and a considerable decrease in the loss of sulfur components in gaseous form. Furthermore, the addition of AOAA and PAG affected the genes related to organic sulfur metabolism and the sulfur metabolism cycle network. This study is the first to investigate the addition of two enzyme inhibitors in composting, examining the mechanisms at different levels. These results provide new insights into the compost management strategies for the reduction of H 2 S emissions. This is a crucial area of research for the reduction of environmental pollution and the advancement of the composting industry.
研究领域:
环境科学
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生物化学
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农业工程
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微生物学
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污染控制
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产品关联
DOI
PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2024
·
IF 4.3
Zhi Yuan Xie,Wan Xiang Qiu,Zi Yi Xu,Nian Bing Li,Hong Qun Luo
Hydrogen sulfide (H 2 S) has a comprehensive contribution to the normal operation and stability of organisms and is also present in environmental water samples and food deterioration. Thus, it is exceedingly promising and significant to develop a highly sensitive detection technique for tracing H 2 S. Inspired by this, we designed and synthesized a new fluorescent probe 2-[3-[2-[3-bromo-4-(2,4- dinitrobenzenesulfonate)] ethenyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]propanedinitrile (SP-Br) for hydrosulfide ion detection by introducing bromine atom. Compared with reported H 2 S probes based on the same fluorescent parent, SP-Br has longer fluorescence emission (λ em = 670 nm), shorter response time (3 min), lower detection limit (149 nM), and wider detection range (0–30 nM). SP-Br can emit weak yellow fluorescence, and the emission intensity at 670 nm is considerably enhanced in the presence of hydrosulfide ions. The identification mechanism of hydrosulfide ion by SP-Br was verified by high-resolution mass spectrometry, fluorescence, and UV–vis absorption spectroscopy. In addition, SP-Br has been successfully applied to the monitoring of actual water samples and beer samples and has certain development prospects and value in the fields of environmental pollution and food quality analysis.
研究领域:
生物化学
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环境科学
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食品科学
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DOI
PubMed
高影响因子
Nanomaterials
·
2020
·Vol. 10
·期 4
·774
·
IF 4.324
Fang Peng,Yan Sun,Yue Lu,Weiwei Yu,Meiying Ge,Jichao Shi,Rui Cong,Jiaming Hao,Ning Dai
In this work, the high crystalline copper oxide (CuO) nanoparticles were fabricated by a hydrothermal method, and their structural properties were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The sensing results show that CuO nanoparticles exhibit enhanced sensitivity and good selectivity for hydrogen sulfide (H2S) gas at a low temperature. There are two working mechanisms involved in the H2S sensing based on CuO nanoparticle sensors. They are the H2S oxidation mechanism and the copper sulphide (CuS) formation mechanism, respectively. The two sensing mechanisms collectively enhance the sensor’s response in the H2S sensing process. The Cu–S bonding is stable and cannot break spontaneously at a low temperature. Therefore, the CuS formation inhibits the sensor’s recovery process. Such inhibition gradually enhances as the gas concentration increases from 0.2 ppm to 5 ppm, and it becomes weaker as the operating temperature rises from 40 °C to 250 °C. The XPS results confirmed the CuS formation phenomenon, and the micro Raman spectra demonstrated that the formation of CuS bonding and its decomposition can be effectively triggered by a thermal effect. Gas-sensing mechanism analysis supplied abundant cognition for the H2S sensing phenomena based on CuO materials.Keywords:CuO;H2S;mechanism;oxidation;CuS formation
研究领域:
材料科学
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化学
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产品关联
DOI
PubMed
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
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2023
·
IF 6
Yan Zhu,Yuanyuan Yao,Jinfeng Xi,Caiguo Tang,Lifang Wu
Fusarium graminearum ( F. graminearum ) is a vital pathogen of Fusarium head blight (FHB). Hydrogen sulfide (H 2 S), which can be induced by stress in plants as a fungal inhibitor, affects the germination of spores through the detection of environmental factors such as temperature and pH. Based on mathematical models, F. graminearum was treated with different temperatures, pH, and H 2 S concentration to investigate spore germination events. This paper considered the synergistic effects of temperature and pH on spores in order to determine the optimal germination environment. Under these circumstances, the inhibition of spore germination with different concentrations of H 2 S was quantified. The results suggested that the germination time negatively correlates with the germinating rate. An increase in temperature altered the weak alkali preference of F. graminearum spores. At 28 °C, spores were more sensitive to the changes in pH. H 2 S gas could delay the germinating process significantly, however the required H 2 S concentration varied with environmental changes. This paper provides a perspective on the synergistic effect of temperature and pH on spore germination and contributes to determining the concentration of H 2 S as a management of FHB.
研究领域:
植物病理学
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微生物学
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环境科学
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产品关联
DOI
高影响因子
ANALYST
·
2020
·Vol. 145
·期 24
·8016-8021
·
IF 3.978
Qiaoling Liu,Ying Zhao,Yan Zhang,Kaixin Xie,Ruirong Liu,Borong Ren,Yanmei Yan,Lin Li
A turn-on spiropyran functionalized fluorescein derivative (FMC) is developed for targeting HS− in mitochondria. FMC exhibits very weak fluorescence at 525 nm under the excitation of 470 nm in aqueous solution due to its colorless spiropyran form; upon addition of HS−, a strong fluorescence enhancement by 6.4-fold is observed with spirocycle-opened merocyanine form and rapid trapping kinetics for HS−. FMC has good biocompatibility and high selectivity towards HS− with a detection limit of 88.2 nM and is very sensitive among the reported H2S fluorescent probes. Moreover, the significant colocalization of FMC with Mito Tracker® Deep Red FM in human laryngeal epidermoid carcinoma (HEp-2) cells and the Pearson correlation coefficient of 0.87 together demonstrate that FMC can target and image the endogenous H2S in the mitochondria of living cells.
研究领域:
生物化学
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医学影像
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细胞生物学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
·
IF 8.5
Wenliang Lei,Juan Liu,Wenyong Zhang,Jing Xu,Tao Bo,Zhiwen Wang,Wei Wang
H 2 S is a crucial endogenous gaseous signaling molecule involved in various metabolic pathways and is associated with the biological response to heavy metal stress. The biomineralization of CdS serves as a critical mechanism for responding to cadmium stress and removing Cd 2+ in different organisms. CdS is also a widely utilized semiconductor material for the photocatalytic degradation of dyes. In this study, we found that cysteine synthetase 1 (TtCsa1) is involved in CdS formation under cadmium stress in Tetrahymena thermophila . TtCsa1 also catalyzed CdS formation in vitro, and the synthesized CdS material exhibited controllable particle size and photoluminescence. Concurrently, cysteine and glutathione functioned as capping agents to regulate CdS particle size. The biosynthetically produced CdS degraded 90 % of methylene blue under UV light. Furthermore, CdS-ZnS nanocomposites were synthesized by adding Zn 2+ into the CdS biosynthetic system, which decreased the size of CdS particles and increased the degradation rate of methylene blue. The results indicate that the CdS biosynthesized by TtCsa1 from Tetrahymena thermophila is effective in the photocatalytic degradation of organic dyes.
研究领域:
生物化学
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环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Chemosensors
·
2022
·Vol. 10
·期 7
·250
·
IF 4.229
Zhonghui Chen,Guoli Chen,Wei Lin,Jinqiu Li,Lishan Fang,Xinyang Wang,Ying Zhang,Yu Chen,Zhenyu Lin
Hydrogen sulfide (H2S) in joint fluid acts as a signal molecule to regulate joint inflammation. Direct detection of H2S in joint fluid is of great significance for the diagnosis and treatment of arthritis. However, due to the low volume of joint fluid and low H2S concentration, existing methods face the problem of the insufficient limit of detection. In this study, a highly sensitive biosensor was proposed by designing a primer probe and combining it with hybrid chain reaction (HCR) under the strong interaction between metal ions and H2S to achieve H2S detection. The primer probe containing multiple cytosine (C) sequences was fixed on a gold electrode, and the C–Ag–C hairpin structure was formed under the action of Ag+. In the presence of H2S, it can combine with Ag+in the hairpin structure to form Ag2S, which leads to the opening of the hairpin structure and triggers the hybridization chain reaction (HCR) with another two hairpin structures (H1 and H2). A large number of double-stranded nucleic acid structures can be obtained on the electrode surface. Finally, Ru(phen)32+can be embedded into the double chain structure to generate the electrochemiluminescence (ECL) signal. The linear response of the H2S biosensor ranged from 0.1000 to 1500 nM, and the limit of detection concentration of H2S was 0.0398 nM. The developed biosensor was successfully used to determine H2S in joint fluid.Keywords:hydrogen sulfide;electrochemiluminescence;hybridization chain reaction;joint fluid
研究领域:
分析化学
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生物传感器
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炎症研究
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DOI
高影响因子
危险品化学品经营许可证（带存储）