INDUSTRIAL CROPS AND PRODUCTS
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2015
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IF 2.837
Kai Yang,Shan-Shan Guo,Zhu-Feng Geng,Chun-Xue You,Wen-Juan Zhang,Yin-Ping Li,Cheng-Fang Wang,Shu-Shan Du,Zhi-Wei Deng
Five new sulphur-containing amides ( 2 , 5 – 8 ) and three known analogue compounds ( 1 , 3 – 4 ) were isolated from the leaves of Glycosmis lucida which were collected in Yunnan province, China. Their structures were elucidated with NMR spectroscopy and mass spectrometry. The compounds were identified as N -( p -hydroxyphenethyl)-3-(methylsulfonyl)-propenamide ( 1 ), N -[2-(4- hydroxyphenyl)-ethyl]-3-methanesulfonyl- N -methyl-propionamide ( 2 ), methylgerambullin ( 3 ), methylisogerambullone ( 4 ), methylgerambullindiol ( 5 ), N -{2-[4-(6,7-hydroxy-3,7-dimethyl-oct- 2-enyloxy)-phenyl]-ethyl}-3-methanesulfonyl- N -methyl-acrylamide ( 6 ), N -{2-[4-(6,7-dihydroxy- 3,7-dimethyl-oct-2-enyloxy)-phenyl]-ethyl}-3-methanesulfonyl- N -methyl-propionamide ( 7 ), ( E )- N -{2-[4-(6-hydroxy-7-dimethyl-oct-2-enyloxy)-phenyl]-ethyl}-3-methanesulfinyl- N -methyl- acrylamide ( 8 ). Feeding deterrent activities of these surphur-containing derivatives against Tribolium castaneum were assayed for the first time. Compound 2 , 3 , 6 possessed significant feeding deterrent activities against T. castaneum adults (EC 50 = 311.6, 244.9 and 108.3 ppm, respectively). These results demonstrated that some sulphur-containing amides are promising candidates as insect antifeedant agents.
研究领域:
植物化学
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昆虫学
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天然产物研究
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DOI
高影响因子
Polymer Chemistry
·
2019
·Vol. 11
·期 4
·810-819
·
IF 4.76
Akram Yasin,Yurong Chen,Yanxia Liu,Letao Zhang,Xingjie Zan,Yagang Zhang
Different from traditional polyethylenimine (PEI) modified Hg(II) adsorbent materials, a novel hyperbranched polythioamide adsorbent (SPD) was prepared by using sulfur, PEI and 1,4-diethynylbenzene (DEB) as monomers. There are tens and thousands of tons of sulfur produced from oil refinery processes as a major by-product each year, and its utilization becomes a concern due to its limited consumption, environmental problems and safety. Herein, a SPD was fabricated through a one-pot, catalyst-free polymerization which even can be solvent-free via using sulfur to solidify the liquid PEI. A kinetic study showed that the adsorption of Hg(II) ions followed the pseudo-second-order model, indicating chemical adsorption between Hg(II) ions and SPD. The SPD had a maximum adsorption capacity of 1161.99 mg g−1. FT-IR and XPS measurements indicated that the removal of Hg(II) by SPD was mainly controlled by the coordination interaction between Hg(II) ions and nitrogen groups (i.e., amine and imine groups), and also CS bonds of SPD. By using elemental sulfur, PEI becomes the backbone of the polymer system by forming –C(S)NH– and –C(S)N< groups unlike the grafted part of traditional PEI modified materials. TG, DTG, and DSC measurements showed that the main degradations occurred at around 160 °C and 360 °C.
研究领域:
材料科学
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环境科学
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化学工程
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DOI
高影响因子
MACROMOLECULES
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2017
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IF 5.835
Ziyang Sun,Huahua Huang,Le Li,Lixin Liu,Yongming Chen
Sulfur-containing polymers have renewed widespread attention due to their fascinating properties like high refractive index and semiconducting character. However, examples of direct polymerization involving elemental sulfur are limited. Herein, a new strategy to prepare polythioamide (PTA) by direct polymerization of aliphatic primary diamines in the presence of sulfur is reported. The polymerization of p-xylylenediamine (1) and sulfur at 110 °C in N-methyl-2-pyrrolidinone afforded PTA1 of high Mw and high yield when the feed ratio of [1]:[S] ranged from 1:2 to 1:3. 1H NMR and 13C NMR spectra confirmed that there are three kinds of structural units among the PTA1 chains. Moreover, different diamines including m-xylylenediamine (2), 1,6-hexanediamine (3), ethylenediamine (4), and 1,4-cyclohexanediamine (5) were copolymerized with 1 in the presence of sulfur to obtain PTA copolymers. With an increase in 5 content, the copolymer PTA1/5 with an alternating sequence in the range of 56%–94% was prepared. Solubility and thermal properties of homopolymers and copolymers were studied. Meanwhile, the copolymers PTA1/3 and PTA1/5 possessed a high refractive index as high as 1.7.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
Nature Communications
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2023
·Vol. 14
·期 1
·1-13
·
IF 16.6
Wang Yu,Wang Tairan,Bu Shuyu,Zhu Jiaxiong,Wang Yanbo,Zhang Rong,Hong Hu,Zhang Wenjun,Fan Jun,Zhi Chunyi
Aqueous zinc metal batteries are appealing candidates for grid energy storage. However, the inadequate electrochemical reversibility of the zinc metal negative electrode inhibits the battery performance at the large-scale cell level. Here, we develop practical ampere-hour-scale aqueous Zn metal battery pouch cells by engineering the electrolyte solution. After identifying the proton reduction as the primary source of H 2 evolution during Zn metal electrodeposition, we design an electrolyte solution containing reverse micelle structures where sulfolane molecules constrain water in nanodomains to hinder proton reduction. Furthermore, we develop and validate an electrochemical testing protocol to comprehensively evaluate the cell’s coulombic efficiency and zinc metal electrode cycle life. Finally, using the reverse micelle electrolyte, we assemble and test a practical ampere-hour Zn||Zn 0.25 V 2 O 5 •nH 2 O multi-layer pouch cell capable of delivering an initial energy density of 70 Wh L −1 (based on the volume of the cell components), capacity retention of about 80% after 390 cycles at 56 mA g −1 cathode and ~25 °C and prolonged cycling for 5 months at 56 mA g −1 cathode and ~25 °C.
研究领域:
材料科学
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电化学
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能源存储
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DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
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2024
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IF 6.3
Tingting Fan,Wenying Cui,Zichen Yu,Seeram Ramakrishna,Yun-Ze Long
With the acceleration of the global industrialization process, the treatment of corrosive waste gas and oily wastewater in pharmaceutical, petrochemical and smelting fields still remains tremendous challenges. Herein, a robust polysulfonamide/polyacrylonitril@silica (PSA/PAN@SiO 2 ) nanofibrous membrane with a hierarchical structure was successfully developed to deal with air filtration and oil–water separation under practical complex environments. In the process of air purification, the synergistic effect of multiple components could effectively surmount the conflict between pollution particle removal efficiency and pressure resistance. The air cleaning efficiency (PM 0.3 ) of the PSA/PAN@SiO 2 composite membranes could reach 99.05 ± 0.13 % at a low pressure drop of 30 ± 2 Pa. Due to the outstanding stability of PSA and SiO 2 , the composite membranes still possessed stable filtration performance in complex environments (strong acid, strong alkali and high temperature). Furthermore, PSA/PAN@SiO 2 composite membranes with unique wettability (under oil superhydrophobicity and underwater superoleophobicity) could efficiently separate oil–water mixtures and emulsions. This multifunctional filtration membrane provides enormous application potential for the field of individual protection and environmental governance, even in complex environments.
研究领域:
材料科学
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环境科学
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化学工程
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2023
·
IF 15.1
Haibin Qu,Songgu Wu,Junbo Gong
Pesticides have always been restricted by environmental factors and utilization rate. Smart delivery systems are important to modify pesticides and improve utilization rate, but the economic and environmental risks of the carriers limit their practical applications. Here, responsive release nanocapsules were constructed with metal-phenolic networks and pyraclostrobin - thiophanate-methyl (PYR-TM) cocrystal core to modify the poor physicochemical properties and safety of pesticides. PYR-TM was prepared by sustainable mechanochemical method and deposited by metal-phenolic networks in water, producing the PYR-TM@TA-Cu nanocapsules. The crystal structure and DFT calculations proved that TM improved the photostability of PYR by 75.7-fold through competitive energy absorption of photon and molecular conformation modulation. With a loading capacity up to 91.2%, PYR-TM@TA-Cu exhibited pH-responsive release behavior triggered by acidic conditions, which showed that 43.6%, 51.4%, 62.4% and 81.6% of encapsulated PYR were released at pH 7.9, 6.2, 5.3, and 4.0, respectively. Additionally, PYR-TM@TA-Cu exhibited favorable fungicidal activity ( EC 50 = 0.123 mg/L) in controlling Botrytis cinerea . The greenhouse control efficiency of fungal infection was enhanced from12.0% to 70.7% by PYR-TM@TA-Cu after 7 days spraying. The coating of metal-phenolic network improved the washing persistence of the pesticides from 51.26% to 79.88%, the security for zebrafish by 42-fold, and decreased the leaching potential of the pesticides. Meanwhile, PYR-TM@TA-Cu showed no phytotoxicity on the growth of corn and cucumber plants. Overall, this study provides insight into efficient and sustainable agricultural production with the construction of an eco-friendly nanocapsules platform by cocrystal engineering strategy.
研究领域:
农业科学
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环境科学
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材料科学
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DOI
高影响因子
FOOD CHEMISTRY
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2021
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IF 7.514
Murtaza Ali,Jun-Hu Cheng,Da-Wen Sun
This study investigated the effect of plasma-activated liquid (PAL) including plasma-activated water (PAW) and plasma-activated buffer solution (PABS) for the reduction of chlorothalonil (CTL) and thiram (THM) pesticide residues on tomato fruit. Results revealed that the PAL obtained by using atmospheric air as the feed gas, CTL residues were decreased to 85.3% and 74.2% and THM residues decreased to 79.47 and 72.21% after treatments with PAW 10 and PABS 10 , respectively, and increasing the activation time caused a significant reduction in fungicide residues. In addition, CTL and THM residues were also decreased while increasing the activation time of PAL using Ar/O 2 as the feed gas, the concentrations of the CTL residues were decreased to 75.07 and 69.89% for PAW 10 and PABS 10 , respectively and THM residues decreased to 65.89 and 61.91% for PAW 10 and PABS 10 , respectively. Oxidation-reduction potential (ORP) and electrical conductivity (EC) were increased significantly after plasma treatment, while pH values of both solutions were decreased significantly with activation time. NO 3 − and NO 2 − concentrations of PAW increased significantly, while for PABS, NO 3 − concentration decreased but NO 2 − , with increasing the plasma activation time. Additionally, washing with PAW and PABS caused no notable negative impact on tomato fruit. Results confirmed that PAL treatments showed a significant reduction of CTL and THM fungicide residues ( p < 0.05) in tomato without affecting the quality.
研究领域:
食品科学
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环境科学
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DOI
PubMed
高影响因子
Catalysts
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2023
·Vol. 13
·期 12
·1493
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IF 3.9
Feiyang Wen,Yuelin Xu,Fengxi Li,Jinglin Ma,Zhi Wang,Hong Zhang,Lei Wang
Disulfides, as fundamental scaffolds, are widely present in peptides, natural products, and pharmaceutical molecules. However, traditional synthesis of disulfides often involves the utilization of toxic reagents or environmentally unfriendly reaction conditions. In this work, a green and efficient method was developed for synthesizing pyrrole disulfides using β-ketothioamides and ethyl cyanoacetate as substrates, with lipase serving as a catalyst. Under the optimal conditions (β-Ketothioamides (1 mmol), ethyl cyanoacetate (1 mmol), PPL (200 U), and EtOH (5 mL)), lipase leads to the formation of pyrrole disulfides in yields of up to 88% at 40 °C. The related mechanism is also speculated in this paper. This approach not only presents a new application of lipase in enzyme catalytic promiscuity, but also offers a significant advancement in the synthetic pathway for pyrrole disulfides and aligns with the current mainstream research direction of green chemistry, contributing to the further development of environmentally friendly biocatalytic processes.Keywords:lipase;catalytic promiscuity;pyrrole disulfide;β-ketothioamides;cyanoacetate
研究领域:
生物化学
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绿色化学
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DOI
高影响因子
ANALYTICA CHIMICA ACTA
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2013
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IF 4.387
Qingxiang Wang,Yingtao Ding,Feng Gao,Shulian Jiang,Bin Zhang,Jiancong Ni,Fei Gao
A novel DNA biosensor was fabricated through a facile sulfamide coupling reaction. First, the versatile sulfonic dye molecule of 1-amino-2-naphthol-4-sulfonate (AN-SO 3 − ) was electrodeposited on the surface of a glassy carbon electrode (GCE) to form a steady and ordered AN-SO 3 − layer. Then the amino-terminated capture probe was covalently grafted to the surface of SO 3 − -AN deposited GCE through the sulfamide coupling reaction between the amino groups in the probe DNA and the sulfonic groups in the AN-SO 3 − . The step-by-step modification process was characterized by electrochemistry and attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. Using Ru(NH 3 ) 6 3+ as probe, the probe density and the hybridization efficiency of the biosensor were determined to be 3.18 × 10 13 strands cm −2 and 86.5%, respectively. The hybridization performance of the biosensor was examined by differential pulse voltammetry using Co(phen) 3 3+/2+ (phen = 1,10-phenanthroline) as the indicator. The selectivity experiments showed that the biosensor presented distinguishable response after hybridization with the three-base mismatched, non-complementary and complementary sequences. Under the optimal conditions, the oxidation peak currents of Co(phen) 3 3+/2+ increased linearly with the logarithm values of the concentration of the complementary sequences in the range from 1.0 × 10 −13 M to 1.0 × 10 −8 M with a regression coefficient of 0.9961. The detection limit was estimated to be 7.2 × 10 −14 M based on 3 σ .
研究领域:
生物化学
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分析化学
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DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
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IF 9.7
Qiujun Wang,Nana Bai,Yelun Xin,Xiaomeng Fan,Di Zhang,Zhaojin Li,Qujiang Sun,Huilan Sun,Bo Wang,Guoxu Wang,Li-Zhen Fan
LiCoO 2 (LCO) is a prominent high-voltage cathode material due to its exceptional energy density and impressive theoretical specific capacity of 274 mAh g −1 . However, challenges such as irreversible structural phase transitions, loss of reactive oxygen, and cobalt dissolution can lead to unstable interfaces between the electrolyte and the LCO cathode. In this study, sulfolane (SUL)-based composite polymer electrolytes (CPEs) were synthesized through in-situ polymerization, and the LCO cathode was modified using vinylidene carbonate (VC) and lithium difluoro(oxalato)borate (LiDFOB). The synergistic effects of SUL and VC/LiDFOB facilitated the formation of a more stable cathode-electrolyte interface (CEI) layer. Consequently, the Li/EFHTL-15 %SUL/LCO-VC-LiDFOB cell demonstrated excellent reversible cycling performance, achieving 86.36 % capacity retention after 300 cycles at 0.5C within a voltage range of 2.8–4.4 V at 25 ℃. This work provides a viable approach for enhancing the interface stability of the LCO cathode in CPEs.
研究领域:
材料科学
·
电化学
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产品关联
DOI
PubMed
高影响因子
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
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2023
·
IF 4.5
Jun-lian WANG,Lu LIU,Guo-dong XU,Pei-long WANG,Guo-yong HUANG,Feng-shan YU
To seek more efficient extractant for Pd recovery from leaching solution of spent automotive catalysts, a new compound N-methyl-N-isopropyl octanthioamide (TA-813) was synthesized and characterized through FT-IR, 1 H NMR, ESI-MS and elemental analysis. Its extraction and stripping behaviors for Pd were studied. To evaluate its reusability performance, extraction−stripping cycles were carried out. Finally, TA-813 was applied to separating Pd from simulated leaching solution of spent automotive catalysts. TA-813 shows fast extraction kinetics, high extraction efficiency and specific selectivity for Pd. During extraction two TA-813 molecules coordinate with one Pd. The loaded Pd in the organic phase is efficiently stripped by neutral and acidic thiourea solutions. TA-813 shows no loss in activity after eight extraction−stripping cycles. Even from simulated leaching solution of spent automotive catalysts, in which the concentrations of some purities (La, Ce, Mg, Al) are much higher than that of Pd, Pd is still selectively extracted.
研究领域:
化学
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材料科学
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环境工程
·
分析化学
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产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2026
·
IF 5.5
Yue Xu,Xianfeng Li,Congxin Xie
The chlorine-based redox couple (Cl–/Cl2) offers significant advantages, including low cost, high redox potential, and solubility, making it a promising candidate for the design of aqueous batteries. However, its application is hindered by the volatilization of chlorine gas (Cl2), which not only reduces the cycle life of the battery but also poses a risk of environmental pollution. To address this challenge, we introduce sulfamide (SF) into the electrolyte as a Cl2 fixer. The produced Cl2 via electrochemical oxidation from Cl– reacts with SF to form soluble N-chlorosulfamide (Cl-SF, Cl+), effectively mitigating Cl2 volatilization. Furthermore, Cl-SF exhibits exceptional electrochemical reversibility with the two-electron transfer process (Cl–/Cl+), significantly enhancing the specific capacity of the redox couple. Experimental results show that after charging, the concentration of Cl2 in the electrolyte remains below 0.2 mM, and the Cl2 concentration in the gas phase above the electrolyte is maintained less than 6 ppm. Batteries assembled with the designed catholyte exhibit stable operation for over 380 cycles, with a Coulombic efficiency of 98% and a maximum discharge capacity of 97.5 Ah L–1. This study presents a viable solution for the safe and sustainable large-scale deployment of chlorine-based flow batteries.
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高影响因子
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