CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Zhujun Luo,Lizhu Yuan,Jonathan W.C. Wong,Minghan Zhu,Yuanyuan Yu,Kai Wang,Hua Yin,Shaoyu Tang,Junfeng Niu
The ubiquity and ecotoxicity of tri (1,3-dichloro-2-propyl) phosphate (TDCPP) in aquatic environments make it essential to develop efficient related treatment techniques. The present research aims to systematically explore the mechanisms and toxicity changes of TDCPP degradation through UV-driven hydrogen peroxide process (UV/H 2 O 2 ). The results revealed degradation efficiency of TDCPP attained 95 % with 0.5 mM H 2 O 2 , corresponding to a reaction rate constant ( k ) of 0.04919 min −1 . Furthermore, three typical chlorinated OPEs (Cl-OPEs) were simultaneously degraded by the UV/H 2 O 2 process, with different degradation efficiencies, according to the following order: TCEP
研究领域:
环境科学
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毒理学
·
微生物学
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DOI
高影响因子
Nanomaterials
·
2020
·Vol. 10
·期 2
·327
·
IF 4.324
Shufang Wu,Xunjun Chen,Tiehu Li,Yingde Cui,Minghao Yi,Jianfang Ge,Guoqiang Yin,Xinming Li,Ming He
In this study, feather keratin/polyvinyl alcohol/tris(hydroxymethyl)aminomethane (FK/PVA/Tris) bionanocomposite films containing graphene oxide (GO) (0.5, 1, 2, and 3 wt%) or graphene (0.5, 1, 2, and 3 wt%) were prepared using a solvent casting method. The scanning electron microscopy results indicated that the dispersion of GO throughout the film matrix was better than that of graphene. The successful formation of new hydrogen bonds between the film matrix and GO was confirmed through the use of Fourier-transform infrared spectroscopy. The tensile strength, elastic modulus, and initial degradation temperature of the films increased, whereas the total soluble mass, water vapor permeability, oxygen permeability, and light transmittance decreased following GO or graphene incorporation. In summary, nanoblending is an effective method to promote the application of FK/PVA/Tris-based blend films in the packaging field.
研究领域:
材料科学
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生物工程
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Li Ding,Yangzheng Huang,Le Shi,Youcai Chen,Dandan Cheng,Haoyu Zhan,Shao-Lu Li,Chunrui Wu
Loose nanofiltration (LNF) membranes prepared by hydroxyl monomers with good dye rejection and inorganic salt permeation properties have attracted significant attention for treating salt-containing textile wastewater. This study adopted interfacial polymerization (IP) method to fabricate a novel polyester LNF membrane, in which tris (4-hydroxyphenyl) phosphine oxide (THPPO) with a steric structure was employed as the solely aqueous monomer. To enhance the solubility and esterification reaction activity of THPPO, sodium hydroxide (NaOH) was specially adopted in aqueous phase, helping the development of the polyester selective layer. The findings demonstrated that the prepared ultrathin (30–38 nm) polyester selective layer exhibited a smooth surface with a negative charge. The optimal membrane LNF-0.05 exhibited a good water permeance of 20.8 L m −2 h −1 bar −1 , excellent rejection of anionic dyes (99.6 % for EBT, 99.3 % for CR, 98.8 % for DR 23, and 98.1 % for MB), and low rejection of monovalent salts (8.2 % for NaCl, 5.0 % for MgCl 2 ), showing excellent EBT/NaCl mixture selectivity as high as 221. The performance stability of the membranes was partially testified by continuous filtration process. These results confirm the significant application potential of tris-phenol phosphine oxide-based polyester LNF membrane for treating saline textile wastewater.
研究领域:
材料科学
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环境工程
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产品关联
DOI
高影响因子
LANGMUIR
·
2026
·
IF 4.4
Xin Wang,Wei-Qian Tang,Xinyu Zhao,Shuo Dong,Yu-Hui Luo,Qing-Hua Wang
This study successfully constructed a direct Z-scheme TP-WO3 heterojunction photocatalytic system via an in situ compositing strategy for the photoassisted Fenton degradation of tetracycline hydrochloride in aqueous environments. The composite formed an intimate interfacial contact between TP and WO3, effectively facilitating the separation and migration of photogenerated charge carriers. Experiments demonstrated that TP-WO3(0.7) achieved a degradation efficiency of 92.34% for 10 ppm tetracycline within 75 min under visible light irradiation with H2O2 assistance, with a reaction rate constant (2.731 × 10–2 min–1) significantly higher than those of the individual components. Radical trapping experiments and electron paramagnetic resonance (EPR) analysis confirmed that h+, •OH, and •O2– were the main active species. This study provides a feasible design strategy and experimental basis for developing efficient and stable organic–inorganic Z-scheme heterojunction photocatalytic materials.
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DOI
PubMed
高影响因子
LUMINESCENCE
·
2015
·Vol. 30
·期 6
·835-841
·
IF 1.518
Zhong-Xia Wang,Ai-Ling Wang,Xiao-Yan Wei,Yan-Rong Qu,Bin Yue,Jie Kang,Hai-Bin Chu,Yong-Liang Zhao
Two complexes of Tb 3+ , Gd 3+ /Tb 3+ and one heteronuclear crystal Gd 3+ /Tb 3+ with phenoxyacetic acid (HPOA) and 2,4,6-tris-(2-pyridyl)- s –triazine (TPTZ) have been synthesized. Elemental analysis, rare earth coordination titration, inductively coupled plasma atomic emission spectrometry (ICP-AES) and thermogravimetric analysis-differential scanning calorimetry (TG-DSC) analysis show that the two complexes are Tb 2 (POA) 6 (TPTZ) 2 ·6H 2 O and TbGd(POA) 6 (TPTZ) 2 ·6H 2 O, respectively. The crystal structure of TbGd(POA) 6 (TPTZ) 2 ·2CH 3 OH was determined using single-crystal X-ray diffraction. The monocrystal belongs to the triclinic system with the P-1 space group. In particular, each metal ion is coordinately bonded to three nitrogen atoms of one TPTZ and seven oxygen atoms of three phenoxyacetic ions. Furthermore, there exist two coordinate forms between C 6 H 5 OCH 2 COO – and the metal ions in the crystal. One is a chelating bidentate, the other is chelating and bridge coordinating. Fluorescence determination shows that the two complexes possess strong fluorescence emissions. Furthermore, the fluorescence intensity of the Gd 3+ /Tb 3+ complex is much stronger than that of the undoped complex, which may result from a decrease in the concentration quench of Tb 3+ ions, and intramolecular energy transfer from the ligands coordinated with Gd 3+ ions to Tb 3+ ions. Copyright © 2015 John Wiley & Sons, Ltd.
研究领域:
无机化学
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发光材料
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配位化学
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晶体学
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DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2017
·
IF 2.895
Liang Shen,Yan Wang
Interfacially synthesized polyamide (PA) thin-film composite (TFC) membranes are widely employed in forward osmosis (FO) applications because of the easy fabrication and excellent separation performance. But they generally suffer from the relative low water permeability and high fouling tendency due to the inherent hydrophobic nature of the PA layer. In this study, an efficient surface modification of nascent TFC membranes is performed by grafting a self-catalyzed tripodal amine—tris(2-aminoethyl)amine (TAEA), in order to improve the membrane performance. This tertiary amine plays a dual role of the reactive amine monomer reacting with acyl chloride groups and the catalyst accelerating the amidation reaction between 1,3,5-trimesoyl chloride (TMC) and TAEA, therefore contributing to an efficient grafting effect to the greatest extent. State-of-the-art characterizations are applied to verify the modification mechanism. The effects of the pH and concentration of the TAEA solution on the overall properties of the resultant TFC membranes are systematically investigated, including the surface chemical composition, surface morphology, hydrophilicity, surface charge, separation performance, and fouling resistance. Compared with the control TFC membrane, TAEA-modified TFC membranes exhibit significantly improved water fluxes, higher antifouling propensity, and comparable reverse salt fluxes.
研究领域:
材料科学
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环境工程
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产品关联
DOI
高影响因子
RSC Advances
·
2021
·Vol. 11
·期 23
·14193-14202
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IF 3.361
Yang Li,Liguo Wang,Yan Cao,Shuang Xu,Peng He,Huiquan Li,Hui Liu
A series of imidazolinium-based porous poly(ionic liquid)s (PILs) with different anions prepared by free-radical copolymerization of an arene-bridged tris-vinylimidazolium salt and divinylbenzene (DVB) were constructed. The as-prepared PILs were characterized by BET, SEM, TEM, TGA and Elemental Analysis (EA), and the results showed that they had plentiful ionic sites, and abundant and stable mesopores. In particular, the density of ionic sites and pore structure of PILs could be controlled by adjusting the content of DVB. Moreover, the PILs were used as efficient heterogeneous catalysts for the decarboxylation of cyclic carbonates to epoxides for the first time. Results showed that the catalytic activity of PILs was positively correlated with the nucleophilicity of the anions in PILs, and PDVB-[PhTVIM]Cl-1 with a chloride anion-enriched skeleton displayed the best catalytic performance. Without any solvent or cocatalyst, PDVB-[PhTVIM]Cl-1 achieved a TOF value of 108.1 h−1 and the yield of butylene oxide of 89.6%, which was even better than the homogeneous IL-based catalysts (TOF value: 8.7 h−1) that had been previously reported. Meanwhile, PDVB-[PhTVIM]Cl-1 also exhibited excellent recyclability and substrate compatibility.
研究领域:
材料科学
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催化
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化学工程
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聚合物化学
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产品关联
DOI
PubMed
高影响因子
ANALYTICA CHIMICA ACTA
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2021
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IF 6.558
Luyao Liu,Chaowei Han,Meng Jiang,Tiantian Zhang,Qing Kang,Xiaoying Wang,Pengcheng Wang,Feimeng Zhou
The tris-nitrilotriacetic acid (tris-NTA) chip has been used for surface plasmon resonance (SPR) kinetic studies involving histidine (His)-tagged proteins. However, its full potential, especially for analyte quantification in complex biological media, has not been realized due to a lack of systematic studies on the factors governing ligand immobilization, surface regeneration, and data analysis. We demonstrate that the tris-NTA chip not only retains His-tagged proteins more strongly than its mono-NTA counterpart, but also orients them more uniformly than protein molecules coupled to carboxymethylated dextran films. We accurately and rapidly quantified immunoglobulin (IgG) molecules in sera by using the initial association phase of their conjugation with His-tagged protein G densely immobilized onto the tris-NTA chip, and established criteria for selecting the optimal time for constructing the calibration curve . The method is highly reproducible (less than 2% RSD) and three orders of magnitude more sensitive than immunoturbidimetry. In addition, we found that the amount of His-protein immobilized is highly dependent on the protein isoelectric point (pI). Reliable kinetic data in a multi-channel SPR instrument can also be rapidly obtained by using a low density of immobilized His-tagged protein. The experimental parameters and procedures outlined in this study help expand the range of SPR applications involving His-tagged proteins.
研究领域:
生物化学
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分析化学
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生物分子相互作用
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生物传感器
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DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2021
·
IF 2.694
Renxin Wang,Yuanzuo Zou,Jingzhou Guo,Yuan Pu,Dan Wang
1,3,5-Tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBi) is normally used as functional materials in organic light-emitting diodes (OLEDs) and the information about the solubilities of TPBi in organic solvents is crucial for the preparation of inks toward inkjet printing technology, which is considered to be a next-generation manufacturing method for OLED production. The solubilities of TPBi in 12 kinds of organic solvents, including n-hexane, cyclohexane, methanol, ethanol, isopropanol, n-butanol, acetonitrile, ethyl acetate, dimethyl sulfoxide, tetrahydrofuran, chlorobenzene, and trichloromethane, at the temperature range from 283.15 to 323.15 K and atmospheric pressure were determined based on the isothermal saturation method. The obtained solubility data were correlated by the modified Apelblat equation and the correlated results exhibited good agreement with the experimental data. The nanonization of TPBi was conducted via high gravity-assisted solvent/antisolvent precipitation processing, which showed a beneficial effect for film formation.
研究领域:
材料科学
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化学工程
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纳米技术
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有机电子学
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产品关联
DOI
高影响因子
Polymers
·
2018
·Vol. 10
·期 10
·1054
·
IF 2.935
Xunjun Chen,Shufang Wu,Minghao Yi,Jianfang Ge,Guoqiang Yin,Xinming Li
Blend films of feather keratin (FK) and synthetic poly(vinyl alcohol) (PVA) that were compatibilized by tris(hydroxymethyl)aminomethane (Tris) were successfully prepared by a solution-casting method. The scanning electron microscopy (SEM) results showed that a phase separation occurred in the FK/PVA/Tris blended system. Analysis by Fourier transform infrared spectroscopy indicated that the main interactions between the three components were hydrogen bonds. In addition, X-ray diffraction analysis showed that the FK/PVA/Tris blend films were partially crystalline. The barrier properties, mechanical properties, and contact angles of the FK/PVA/Tris films were investigated to determine the effects of the PVA and Tris concentrations. More specifically, upon increasing the PVA content, the elongation at break, the hydrophilicity, and the oxygen barrier properties were enhanced. However, at a constant PVA content, an increase in the Tris content caused the oxygen permeability and the contact angle to decrease, while the tensile strength, elongation at break, and oxygen barrier properties were enhanced. These results indicated that the mechanical properties and gas resistance of the FK/PVA/Tris blend films could be successfully improved using the method described herein, confirming that this route provided a convenient and promising means to prepare FK plastics for practical applications.Keywords:blend film;feather keratin;poly(vinyl alcohol);tris(hydroxymethyl)aminomethane;solution-casing;physicochemical properties
研究领域:
材料科学
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生物化学
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产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2015
·Vol. 6
·期 4
·2703-2711
·
IF 3.84
Zhong-Liang Sun,Sheng-Zhang Xue,Cheng-hu Yan,Wei Cong,De-Zhu Kong
CO2 supplementation is usually a limiting factor in microalgal culture systems, especially when flue gases are used as the carbon source. In this study, tris(hydroxymethyl)aminomethane (THAM) was applied as a gas carrier to increase CO2 storage capacity in the culture medium and enhance microalgal biomass production. Abiotic experiments showed that the amount of CO2 absorbed by the medium within the same absorption time increased with increasing THAM concentration, and the gas absorptivity maintained a higher level (>60%) under the neutral pH conditions. Cell growth in shaker flasks illustrated that the biomass productivities of Scenedesmus dimorphus were significantly improved (31 to 66%) when the medium contained 2–8 mmol L−1 THAM. Meanwhile, THAM was not biodegraded during the cultivation. The biomass productivities achieved with 6 mmol L−1 THAM were much higher (32 to 33%) than that with routine culture when it was applied into an open raceway reactor system (2 m2), and the CO2 utilisation efficiency also increased by 6 to 12%. The results show that the addition of THAM as a gas carrier for enhancing CO2 input could be an easy-to-use and cost-effective approach for mass cultivation of microalgae.
研究领域:
环境科学
·
生物技术
·
藻类学
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DOI
高影响因子
ENVIRONMENTAL POLLUTION
·
2020
·
IF 6.793
Dan Li,Yin Zhong,Xifen Zhu,Heli Wang,Weiqiang Yang,Yirong Deng,Weilin Huang,Ping’an Peng
Tris(2-chloroethyl) phosphate (TCEP) is a widely found emerging pollutant due to its heavy usage as a flame retardant . It is chemically stable and is very difficult to removal from water. The goal of this study was to explore whether iron monosulfide (FeS) can be used for reductive transformation of TCEP as FeS can react with a variety of halogenated organic contaminants . We used batch reactor systems to quantify the transformation reactions in the absence and presence of cetyltrimethylammonium bromide (CTAB, a common surfactant in aquatic environments). The results showed that, in the presence of CTAB (100 mg L −1 ), FeS exhibited much greater reactivity towards TCEP as 93% of initial TCEP had been transformed within 14 d of reaction. In the absence of CTAB, it required 710 d of reaction to achieve 97.3% reduction of initial TCEP. The enhancement of CTAB on TCEP transformation rate could be due to the facts that CTAB could stabilize FeS suspension against aggregation, protect FeS from rapid oxidation, and increase surface adsorption of TCEP on FeS. XPS analysis showed that both Fe(II) and S(-II) species on the FeS surface were involved in the reductive transformation of TCEP. Analysis of transformation products revealed that TCEP was reductively transformed into bis(2-chloroethyl) phosphate (BCEP), Cl − and C 2 H 4 . These findings showed that FeS may play an important role in the reductive transformation of TCEP when TCEP coexisting with CTAB in aquatic environments.
研究领域:
环境科学
·
化学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）