JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2023
·
IF 5.7
Mingnan Shangguan,Xiuyun Zhang,Chaoying Wang,Yunyun Zhao,Guisheng Zhu,Laijun Liu,Huarui Xu
A facile tartaric acid assisted method using metatitanic acid, barium hydroxide and tartaric acid as starting materials is proposed to prepare tetragonal BaTiO 3 fine powders. Owing to the ultrafine character of the as-formed BaCO 3 with high chemical activity, and its arrangement coating the surface of intermediate TiO 2 nanoscale needles, pure cubic phase BaTiO 3 homogeneous powders with size of about 50 nm was obtained via calcining treatment at 650 ℃, which subsequently transformed as tetragonal BaTiO 3 uniform powders with size of about 240 nm and high tetragonality (c/a=1.0095) after calcining treatment at 1050 ℃. The BaTiO 3 ceramic prepared from the BaTiO 3 uniform powders displayed much improvement performances with high permittivity of about 5980 and low dielectric loss of about 0.014 at room temperature in comparison to the BaTiO 3 ceramic prepared respectively from the BaTiO 3 synthesized via a traditional solid-state method, and commercial BaTiO 3 , suggesting it’s compatible in application of MLCCs with high performance.
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Longfei Zhu,Sen Ye,Jiazheng Zhu,Chengjie Duan,Kun Li,Guangke He,Xiang Liu
Developing highly active nonnoble-metal-based heterogeneous catalysts for selective hydrogenation is a long-sought goal due to the scarcity and high price of noble metals. Herein, well-dispersed and small-sized Ni nanoparticles (NPs) supported on hydroxyapatite (Ni-TA/HAP) were prepared using a simple tartaric acid (TA)-assisted impregnation method, which is based on the coupling interaction of strong electrostatic adsorption between the HAP and TA and reactive metal–ligand chelation between Ni and TA. Under mild conditions (e.g., 1 mol % Ni, 3 bar H2 at 80 °C), the as-synthesized Ni-TA/HAP exhibited excellent activity and selectivity (>99%) for the efficient hydrogenation of phenolic compounds to the corresponding cyclohexanols, as well as the controlled partial hydrogenation of N-heteroarenes. Characterization results revealed that TA addition could promote a better dispersion of Ni species and inhibit the aggregation of Ni NPs during the fabrication of the Ni-TA/HAP catalyst. An optimal TA dosage (nTA/nNi = 0.5) as well as a low Ni loading (1.0 wt %) coconstructed the favorable microstructure of the well-dispersed Ni nanoparticles as the catalytic center. The hydrogenation was boosted by small-sized Ni nanoparticles with a high ability for H2 activation and HAP with both base and acid sites for appreciating phenol absorption.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Cleaner Production
·
2020
·
IF 7.246
Shoufeng Tang,Zetao Wang,Deling Yuan,Chen Zhang,Yandi Rao,Zhibin Wang,Kai Yin
To overcome the handicaps limiting the performance of conventional Fenton processes for effluent treatment , an improved Fenton process based on substituting the hydrogen peroxide (H 2 O 2 ) with calcium peroxide (CaO 2 ) and adding tartaric acid (TA) as the chelating agent for Fe 2+ was proposed. The results indicated that methylene blue (MB) and sulfamethoxazole (SMX) could be effectively degraded by the CaO 2 /Fe 2+ /TA synergistic system. With the optimal CaO 2 /Fe 2+ /TA ratio (1:0.5:1 mmol L −1 ), MB and SMX removals reached 94.82% and 99.61% after 300 and 600 s of reaction, respectively. The UV–vis spectra and iron analyses demonstrated that TA increased the conversion of Fe 3+ to Fe 2+ and decreased iron sludge production. Fe 2+ -TA complexation improved H 2 O 2 decomposition. The radical scavenging activity and electron paramagnetic resonance studies confirmed the formations and roles of hydroxyl (·OH), singlet oxygen, and superoxide radicals, and the pollutant removal was primarily due to the ·OH-driven reactions. The decomposition mechanisms for MB and SMX were proposed based on the obtained mass spectra . The ecotoxicity of the SMX primary byproducts was predicted using a toxicity estimation software tool .
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Xiaonuo Zhang,Hong Lu,Jiyan Liu,Bekele Tadiyose,Huihui Wan,Zhihui Zhong,Yaxi Deng,Goujian Chi,Hongxia Zhao
Biotransformation is a major dissipation process of tetrabromobisphenol A and its derivatives (TBBPAs) in soil. The biotransformation and ultimate environmental fate of TBBPAs have been widely studied, yet the effect of root exudates (especially low-molecular weight organic acids (LMWOAs)) on the fate of TBBPAs is poorly documented. Herein, the biotransformation behavior and mechanism of TBBPAs in bacteriome driven by LMWOAs were comprehensively investigated. Tartaric acid (TTA) was found to be the main component of LMWOAs in root exudates of Helianthus annus in the presence of TBBPAs, and was identified to play a key role in driving shaping bacteriome. TTA promoted shift of the dominant genus in soil bacteriome from Saccharibacteria _ genera _ incertae _ sedis to Gemmatimonas , with a noteworthy increase of 24.90–34.65% in relative abundance of Gemmatimonas . A total of 28 conversion products were successfully identified, and β-scission was the principal biotransformation pathway for TBBPAs. TTA facilitated the emergence of novel conversion products, including 2,4-dibromophenol, 3,5-dibromo-4-hydroxyacetophenone, para-hydroxyacetophenone, and tribromobisphenol A. These products were formed via oxidative skeletal cleavage and debromination pathways. Additionally, bisphenol A was observed during the conversion of derivatives. This study provides a comprehensive understanding about biotransformation of TBBPAs driven by TTA in soil bacteriome, offering new insights into LMWOAs-driven biotransformation mechanisms.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 35
·e03408
·
IF 2
Fang Shen,Bingfeng Qian,Jianan Zhang,Mingyuan Wu,Jiuyi Liu,Qingyun Wu,Jianjun Yang
The application of plasticizers significantly enhances the flexibility and processability of polyvinyl chloride (PVC) materials. At present, the mainstream petroleum-based phthalate plasticizers have raised concerns due to their unsustainability, toxicity and easy migration. The development of new environmentally friendly plasticizers using renewable resources has become a new trend to replace petroleum-based plasticizers. Tartaric acid (TA) is a renewable resource extractable from plants such as grapes and tamarind. In this study, a new type of branched-chain tartrate ester (BTA7) plasticizer was synthesized by reacting TA with n -heptanol and isobutyric acid through esterification and anhydride capping methods. Thermogravimetric analysis (TGA), tensile test, microstructure analysis and migration test were used to evaluate its compatibility and plasticizing effect on soft PVC, and comparisons were made with commercially available plasticizers. The Results demonstrate that BTA7's abundant polar groups and optimal alkyl chains effectively plasticize PVC, reducing its glass transition temperature by 90.9% while increasing elongation at break by 451.5%. Compared with petroleum-based plasticizers, BTA7 is less prone to migrate from the PVC matrix. In conclusion, the plasticizing performance of BTA7 is comparable to or even better than that of commercially available plasticizers, indicating its potential to replace phthalate plasticizers. Graphical We report a bio-based tartaric acid-derived plasticizer for polyvinyl chloride, which effectively enhances the flexibility of polyvinyl chloride and significantly mitigates the migration issues associated with traditional petroleum-based plasticizers.
✓ 已验证
产品关联
DOI
高影响因子
FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Fan Feng,Na Li,Hongcong Song,Aihua Li,Yongsheng Tao
Fruity esters showed structure-dependent, non-linear responses to tartaric acid. • Gas–liquid partitioning broadly matched odor-threshold changes. • 1 H NMR supported non-covalent interactions between tartaric acid and esters. • Aromatic esters showed the strongest hydrophobic interactions with tartaric acid. • Medium-chain esters formed the strongest hydrogen bonds with tartaric acid. To investigate the matrix effects of tartaric acid on the release and sensory perception of fruity esters in wine, nine esters covering short-chain, branched-chain, medium-chain, and aromatic esters were evaluated in a model wine system containing 0–8 g/L tartaric acid. S-curve fitting, phase ratio variation, 1 H NMR spectroscopy, and quantum chemical calculations were combined to characterize these matrix effects. Results showed that branched-chain, short-chain, and aromatic esters generally exhibited an initial decrease followed by an increase in threshold as tartaric acid concentration increased. Branched-chain esters were most readily perceived at 2 g/L, with isoamyl acetate reaching a minimum threshold of 2.57 μg/L, whereas short-chain and aromatic esters showed the strongest perception at 4 g/L, with the threshold of ethyl butanoate decreasing from 37.12 to 5.16 μg/L. In contrast, medium-chain ester thresholds generally increased after tartaric acid addition. Gas–liquid partition coefficients broadly followed the threshold trends, with the kᵢ × 10 2 value of ethyl octanoate decreasing from 12.81 without tartaric acid to 3.61 at 4 g/L, whereas aromatic ester release remained relatively stable. 1 H NMR showed more pronounced spectral responses for medium-chain and some aromatic esters. Quantum chemical calculations indicated that tartaric acid interacted noncovalently with fruity esters mainly through hydrogen bonding and hydrophobic interactions. Medium-chain esters exhibited stronger hydrogen-bonding interactions, whereas aromatic esters showed stronger hydrophobic contributions. Overall, 4 g/L tartaric acid was most favorable for short-chain and aromatic ester perception, whereas branched-chain ester perception was optimal at 2 g/L and medium-chain ester perception was generally inhibited by tartaric acid. Download: Download high-res image (233KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Qian Ye,Hao Xu,Qingguo Wang,Xiaowei Huo,Yunqi Wang,Xue Huang,Guanyu Zhou,Jinfeng Lu,Jing Zhang
The specific roles of tartaric acid (TA), as an eco-friendly ligand, in homogeneous and heterogeneous copper-catalyzed systems were systematically revealed and new mechanisms of TA enhancing the three Fenton-like processes were proposed to provide a theoretical significance in overcoming the deficiency of conventional Fenton processes. The results identified hydroxyl radical (•OH) as the main species responsible for the simultaneous decomposition of TA and metronidazole (MNZ) according to TOC removal. The ESR technique was used to detect superoxide radicals (•O 2 − ), carbon-centered radical (•R) and hydrogen radical (•H) in the Cu 2+ /TA/H 2 O 2 system, which contributed to the acceleration of the Cu 2+ /Cu + redox cycle. The enhancing effect of TA on the homogeneous process was ascribed to the formation of a soluble complex with Cu 2+ , which favored the pH range extension, Cu + oxidation , and radical generation. Moreover, the adsorption of TA on the catalysts surface promoted the consumption of H 2 O 2 , inducing •OH generation. The formed surface complex (≡Cu 2+ -TA) also accelerated the regeneration of ≡Cu + , which was confirmed by density functional theory (DFT) calculation and surface characterization analysis (SEM, XRD, and XPS). The possible degradation pathways of MNZ in TA-modified Fenton-like system were also clarified.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CRYSTAL GROWTH & DESIGN
·
2018
·
IF 3.972
Lichao He,Zhongrui Liang,Guojia Yu,Xiangrong Li,Xinjian Chen,Zhiyong Zhou,Zhongqi Ren
The separation of chiral compounds into their enantiomers is widely used in the pharmaceutical industry. Two types of environmentally benign tartaric acid derivatives, O,O′-dibenzoyl-(2S,3S)-tartaric acid (d-DBTA) and O,O′-dibenzoyl-(2R,3R)-tartaric acid (l-DBTA), were selected as efficient chiral selectors for the separation of racemic ofloxacin by forming diastereomeric cocrystal pairs in the aqueous phase. Effects of the type of chiral selectors, resolution time, the amounts of racemic ofloxacin, and temperature on the resolution performance of ofloxacin were investigated. The results indicated that d-DBTA selectively cocrystallized with the R-enantiomer (R-OFLX), while l-DBTA selectively cocrystallized with the S-enantiomer (S-OFLX) in the aqueous phase. Under the optimal conditions, the enantiomer excesses (% ee) reached up to 81.8% ee and 82.3% ee for S-OFLX and R-OFLX at 278.2 K, respectively. The stoichiometric ratio of d-DBTA or l-DBTA to R-ofloxacin or S-ofloxacin in cocrystals was 1:1. Various characterization and calculation methods, such as powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and density functional theory (DFT), were performed for the study of the resolution mechanism, the results of which demonstrated that the cocrystals were formed by hydrogen bonding between d-DBTA or l-DBTA and ofloxacin. Compared with previous studies, the proposed separation process was not only environmentally benign but also beneficial to increasing % ee. The proposed method has explored a new path for green and efficient separation of racemic compounds that cannot form salts.
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2014
·
IF 2.086
Songjing Wang,Peng Li,Lianyi Shao,Kaiqiang Wu,Xiaoting Lin,Miao Shui,Nengbing Long,Dongjie Wang,Jie Shu
In this article, LiNi 0.5 Mn 1.5 O 4 and LiNi 0.4 Cr 0.15 Mn 1.45 O 4 are prepared by the tartaric acid-assisted sol–gel method. It can be found that Cr doping not only can suppress the formation of impurity phase in the final product but also can increase the cation ordering in the spinel structure. Morphology observation reveals that the introduction of tartaric acid in the preparation leads to a controlled cubic morphology and a narrow particle size distribution . It is clear that both LiNi 0.5 Mn 1.5 O 4 and LiNi 0.4 Cr 0.15 Mn 1.45 O 4 consist of octahedrons with the particle size ranging from 0.5 to 1.5 μm. Charge/discharge tests show that LiNi 0.4 Cr 0.15 Mn 1.45 O 4 can deliver a higher initial discharge capacity (143.9 mAh g −1 ) than that of undoped LiNi 0.5 Mn 1.5 O 4 (136.6 mAh g −1 ). After 40 cycles, the reversible discharge capacity of LiNi 0.4 Cr 0.15 Mn 1.45 O 4 can be still maintained at 139.7 mAh g −1 . For comparison, LiNi 0.5 Mn 1.5 O 4 only shows a reversible discharge capacity of 127.7 mAh g −1 . It suggests that Cr substitution for Ni and Mn in the spinel structure can effectively improve the electrochemical performance of LiNi 0.5 Mn 1.5 O 4.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Water Process Engineering
·
2024
·
IF 6.3
Yifan Li,Zhenkai Wang,Jing Lei,Sheng-Peng Sun
Activation of S 2 O 8 2− by Fe 2+ is suppressed under non-acidic pH conditions, strongly hindering its application for water purification. To this end, this study reported an efficient photo-Fenton activation of S 2 O 8 2− by Fe 3+ -tartaric acid complex at circumneutral pH. The results showed that UVA irradiation induced a rapid photogeneration of Fe 2+ from Fe 3+ -tartaric acid complex at circumneutral pH, by which efficient photo-Fenton activation of S 2 O 8 2− was obtained to generate sulfate radical (SO 4 •- ), as evidenced by radical quenching study in combination with electron spin resonance measurement. The process efficiency was optimized in terms of the tartaric acid:Fe 3+ ratio, Fe 3+ -tartaric acid complex dosage, S 2 O 8 2− dosage and UV fluence. Notably, the photo-Fenton catalytic efficiency of Fe 3+ -tartaric acid (1:1) complex for S 2 O 8 2− was comparable to the Fe 3+ -EDDS (1:1) and Fe 3+ -citric acid (1:1) complexes, and more efficient than the Fe 3+ -NTA (1:1), Fe 3+ -EDTA (1:1), Fe 3+ -oxalic acid (1:1) and Fe 3+ -malonic acid (1:1) complexes. It is noticed that the process efficiency can be hindered by the presence of humic acid, phytic acid and HCO 3 − . Nevertheless, almost complete degradation of carbamazepine in actual secondary effluents at environmental relevant concentration was obtained under the optimal conditions of 100 μM Fe 3+ -tartaric acid (1:1) complex, 2 mM S 2 O 8 2− , pH 5.0–6.0, 25 °C and UV fluence of 5.0 J cm −2 . By considering the promising photo-Fenton catalytic efficiency and environmentally benign manner of Fe 3+ -tartaric acid complex, it has large potential application for the treatment of emerging micropollutant in water.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Jin He,Qintie Lin,Yanrong Luo,Yuxin Liu,Xindan Fan,Junli Zheng,Kehuan Xu,Yongjie Ma
In the context of the increasing global problem of arsenic (As) contamination in soils, an efficient remediation method is urgently needed to alleviate it. In this study, a composite washing agent consisting of 0.2 mol L −1 dithionite and 0.05 mol L −1 tartaric acid (TA) in a 1:1 mixing volume ratio was prepared and used in the remediation of arsenic-contaminated soils. The results showed that the removal efficiency of arsenic was 62.47% in soil 1 at a concentration of 134 mg kg −1 and 70.08% in soil 2 at a concentration of 70 mg kg −1 . Dithionite achieved greater release of the arsenic associated with amorphous hydrous oxides of iron and aluminium (F3) and arsenic associated with crystalline hydrous oxides of iron and aluminium (F4) forms of arsenic by the reductive dissolution of iron oxides , while also reducing Fe 3+ . TA released some arsenic in the specifically adsorbed (F2) and F3 forms through acidic effects. The mechanism of arsenic removal from the composite washing agent was found to be a synergistic effect between dithionite and TA. The TA complexation formed Fe-TA complexes with Fe 2+ in solution, preventing the formation of new iron mineral phases and reducing the readsorption or precipitation of arsenic to the soil surface. Meanwhile, the formation of Fe-TA complexes kept the iron oxides dissolved, allowing more iron oxide-bound arsenic (F3 +F4) to be released. This study showed that combining TA with dithionite is a promising technology for remediating arsenic-contaminated soils because of its high efficiency.
✓ 已验证
DOI
高影响因子
DESALINATION
·
2022
·
IF 11.211
Yuhua Xiong,Xingtao Zuo,Jiajie He,Juan Xiong,Cong Ma,Zhongbing Chen,Yun Zhou,Shuili Yu
High performance polyamide (PA) thin-film composite (TFC) membranes are in great demand. However, it is still a challenge to further enable PA TFC membranes to overcome the perm-selectivity tradeoff. Here, l -tartaric acid (LTA) and piperazine were first used as the aqueous phase monomers to fabricate LTA integrated PA (LTA/PA) TFC membranes via interfacial polymerization (IP) with trimesoyl chloride. The physicochemical property and separation performance of the PA TFC membranes were regulated via LTA concentrations. The introduction of LTA made the PA layer of the membrane thinner and smoother with enlarged pore size. The LTA/PA TFC membrane prepared with a higher LTA content had a maximal water flux (207.6 LMH/bar, 20 times higher than that of the control membrane), with superior rejections for the dyes (>98.0 %) and low removal rates for the salts (<4.5 %). Of note, the water flux of the membrane prepared with a low LTA content was enhanced to 18.9 LMH/bar without sacrificing the rejection of Na 2 SO 4 ( R Na 2 SO 4 > 98.0 %). The membranes with optimal LTA content break the tradeoff towards some dyes or salts, and presented superior performance compared with most other reported polymeric membranes. This work highlights the great potential of constructing natural acid-modulated PA composite membranes in water purification .
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）