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学者姓名：叶长燊
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Abstract ：
The presence of a considerable quantity of metal ions in N-methylpyrrolidone (NMP) applied for the cleaning of electronic devices, especially chips, results in a breakdown effect, thus affecting their overall durability and performance. Here, hydrogel that rich in O, N, and S active sites was prepared, which can effectively remove trace amounts of Cu (II) from N-methylpyrrolidone. The material was synthesized through a one-pot crosslinking and ion exchange method and is named SLH. The physicochemical properties and adsorption experiments were conducted. It was found that SLH-2 exhibited outstanding Langmuir maximum adsorption capacity of 136.99 mg/g at an initial Cu (II) concentration of 200 mg/L. By utilizing SLH-2 in electronic grade adsorption experiments, concentration of trace Cu (II) decreased from 12.3 μg/L to 5.39 μg/L. Additionally, concentration of Zn, Fe, Mg, and Ni significantly reduced to less than 1 μg/L, with –NH2 and –COOH playing crucial roles in the adsorption process. The research results indicate that predominant adsorption mechanisms are surface coordination and ion exchange. The adsorption energy between active functional groups and Cu (II) was calculated using density functional theory (DFT), revealing an affinity order of –COOH > –SO3H > –NH2 > –OH. This work not only developed an adsorbent for capturing trace Cu (II), but also provided new strategies for the removal of metal ions in wet chemicals. © 2024 Elsevier B.V.
Keyword ：
Adsorption Adsorption Copper compounds Copper compounds Density functional theory Density functional theory Hydrogels Hydrogels Ion exchange Ion exchange Metal ions Metal ions Physicochemical properties Physicochemical properties Trace elements Trace elements
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| GB/T 7714 | Chang, Zhouxin , Zhang, Jiamei , Ye, Changshen et al. Trace Cu (II) removal from N-methylpyrrolidone with hydrogel rich in O, N and S active sites [J]. | Separation and Purification Technology , 2024 , 337 . |
| MLA | Chang, Zhouxin et al. "Trace Cu (II) removal from N-methylpyrrolidone with hydrogel rich in O, N and S active sites" . | Separation and Purification Technology 337 (2024) . |
| APA | Chang, Zhouxin , Zhang, Jiamei , Ye, Changshen , Chen, Jie , Qi, Zhaoyang , Wang, Qinglian et al. Trace Cu (II) removal from N-methylpyrrolidone with hydrogel rich in O, N and S active sites . | Separation and Purification Technology , 2024 , 337 . |
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根据学情分析，确立了“实例引导创新”的思路，对理工科课程设计贯通低、中、高阶认知的教学方案，并利用实际工程案例引导同学们进行创新。引进系统性教学资源和碎片式知识点引发学生学习兴趣，结合工程案例和实验技术培养学生动手能力，例如蒸馏操作中的反应精馏实例，培养学生责任心与专业信念，使用创新思维范式引导学生进行自组织学习、主动构建案例，而学生的创新成果又纳入课程内容，促进教学迭代优化。
Keyword ：
创新思维 创新思维 实例引导 实例引导 教学迭代 教学迭代
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| GB/T 7714 | 葛雪惠 , 尤新强 , 李玲 et al. 基于实例引导创新的《化工原理》教学改革与实践 [J]. | 当代化工研究 , 2024 , 3 (05) : 158-160 . |
| MLA | 葛雪惠 et al. "基于实例引导创新的《化工原理》教学改革与实践" . | 当代化工研究 3 . 05 (2024) : 158-160 . |
| APA | 葛雪惠 , 尤新强 , 李玲 , 叶长燊 , 杨臣 . 基于实例引导创新的《化工原理》教学改革与实践 . | 当代化工研究 , 2024 , 3 (05) , 158-160 . |
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Biodiesel, known as a renewable fuel, is an environmentally friendly energy source derived from animal and vegetable oils, as well as recycled oil. Despite this, the current advancements in biodiesel technology face challenges in fully replacing petrochemical diesel, primarily due to the non-green catalytic synthesis and high production cost associated with biodiesel. Ionic liquids containing strong Lewis acids or BrOnsted acids have been highlighted as a novel class of environmentally friendly solvents and catalysts, showing green and effective catalytic potential in the synthesis of biodiesel via transesterification. In another aspect, reactive distillation technology could facilitate continuous forward reactions catalyzed by ionic liquids by swiftly removing reaction products from the reaction zone, offering advantages in improving the production efficiency, energy consumption, and cost reduction. From this perspective, we discuss the synthesis of biodiesel catalyzed by ionic liquids, supported ionic liquids, amphiphilic ionic liquids, and amphiphilic supported ionic liquids. The focus is on the process for synthesizing biodiesel through catalytic distillation. We emphasize the potential role of the lipophilic group in the ionic liquid catalyst, promoting the mutual solubility of the reactant triglyceride with methanol or ethanol. This enhancement might facilitate contact between the reactants and improve the catalytic efficiency of transesterification. Additionally, we propose several methods to improve the efficiency of biodiesel synthesis catalyzed by ionic liquid catalysts and suggest appropriate reactive distillation processes for biodiesel production.
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| GB/T 7714 | Qi, Zhaoyang , Cui, Rongkai , Lin, Hao et al. Challenges and perspectives on using acidic ionic liquids for biodiesel production via reactive distillation [J]. | GREEN CHEMISTRY , 2024 , 26 (13) : 7718-7731 . |
| MLA | Qi, Zhaoyang et al. "Challenges and perspectives on using acidic ionic liquids for biodiesel production via reactive distillation" . | GREEN CHEMISTRY 26 . 13 (2024) : 7718-7731 . |
| APA | Qi, Zhaoyang , Cui, Rongkai , Lin, Hao , Ye, Changshen , Chen, Jie , Qiu, Ting . Challenges and perspectives on using acidic ionic liquids for biodiesel production via reactive distillation . | GREEN CHEMISTRY , 2024 , 26 (13) , 7718-7731 . |
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N-Methylpyrrolidone is widely used across various sectors; however, the energy-efficient removal of 1,4-butyrolactone impurity from NMP remains a significant challenge due to their nearly identical molecular size and properties. Herein, we synthesize a series of flexible molecular materials, perethylated pillar[n]arene (n = 5, 6) with enhanced crystallization efficiency under the induce of dichloromethane solvent. Through a size-specific recognition and varied host–guest interaction, EtP5 demonstrates exceptional 99 % selectivity for GBL against NMP; single-crystal structure analyses and theoretical calculations unveil intricate C-H···O hydrogen bonding interactions, and π-π stacking interactions between EtP5 and GBL. The single-crystal structure of the two-guest complexes has proved the existence of adsorption transition states, and it comprehensively elucidates the dynamic adsorption process of EtP5 with GBL, supported by theoretical calculations. Reuse experiments validate these crystals could be fully reused without loss of performance. © 2024 Elsevier B.V.
Keyword ：
1,4-Butyrolactone 1,4-Butyrolactone Adsorption mechanism Adsorption mechanism N-Methylpyrrolidone N-Methylpyrrolidone Perethylated pillar[5]arene Perethylated pillar[5]arene
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| GB/T 7714 | Yin, M. , Yang, C. , Tang, D. et al. Revealing the mechanism behind the highly selective separation of 1,4-butyrolactone from n-methylpyrrolidone using nonporous adaptive crystals of perethylated pillar[5]arene [J]. | Chemical Engineering Journal , 2024 , 495 . |
| MLA | Yin, M. et al. "Revealing the mechanism behind the highly selective separation of 1,4-butyrolactone from n-methylpyrrolidone using nonporous adaptive crystals of perethylated pillar[5]arene" . | Chemical Engineering Journal 495 (2024) . |
| APA | Yin, M. , Yang, C. , Tang, D. , Huang, S. , Lou, X. , Cui, R. et al. Revealing the mechanism behind the highly selective separation of 1,4-butyrolactone from n-methylpyrrolidone using nonporous adaptive crystals of perethylated pillar[5]arene . | Chemical Engineering Journal , 2024 , 495 . |
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Dimethyl carbonate (DMC) is a crucial chemical raw material widely used in organic synthesis, lithiumion battery electrolytes, and various other fields. The current primary industrial process employs a conventional sodium methoxide basic catalyst to produce DMC through the transesterification reaction between vinyl carbonate and methanol. However, the utilization of this catalyst presents several challenges during the process, including equipment corrosion, the generation of solid waste, susceptibility to deactivation, and complexities in separation and recovery. To address these limitations, a series of alkaline poly(ionic liquid)s, i.e. [DVBPIL][PHO], [DVCPIL][PHO], and [TBVPIL][PHO], with different crosslinking degrees and structures, were synthesized through the construction of cross-linked polymeric monomers and functionalization. These poly(ionic liquid)s exhibit cross-linked structures and controllable cationic and anionic characteristics. Research was conducted to investigate the effect of the crosslinking degree and structure on the catalytic performance of transesterification in synthesizing DMC. It was discovered that the appropriate cross-linking degree and structure of the [DVCPIL][PHO] catalyst resulted in a DMC yield of up to 80.6%. Furthermore, this catalyst material exhibited good stability, maintaining its catalytic activity after repeated use five times without significant changes. The results of this study demonstrate the potential for using alkaline poly(ionic liquid)s as a highly efficient and sustainable alternative to traditional catalysts for the transesterification synthesis of DMC.
Keyword ：
Cross-linking degree Cross-linking degree Dimethyl carbonate production Dimethyl carbonate production Mechanism Mechanism Poly(ionic liquid) Poly(ionic liquid) Transesterification reaction Transesterification reaction
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| GB/T 7714 | Qi, Zhaoyang , Zhong, Shiquan , Su, Huiyun et al. Tuning the cross-linked structure of basic poly(ionic liquid) to develop an efficient catalyst for the conversion of vinyl carbonate to dimethyl carbonate [J]. | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2024 , 72 : 106-116 . |
| MLA | Qi, Zhaoyang et al. "Tuning the cross-linked structure of basic poly(ionic liquid) to develop an efficient catalyst for the conversion of vinyl carbonate to dimethyl carbonate" . | CHINESE JOURNAL OF CHEMICAL ENGINEERING 72 (2024) : 106-116 . |
| APA | Qi, Zhaoyang , Zhong, Shiquan , Su, Huiyun , Ye, Changshen , Ren, Limei , Qiu, Ting et al. Tuning the cross-linked structure of basic poly(ionic liquid) to develop an efficient catalyst for the conversion of vinyl carbonate to dimethyl carbonate . | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2024 , 72 , 106-116 . |
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Biodiesel, known as a renewable fuel, is an environmentally friendly energy source derived from animal and vegetable oils, as well as recycled oil. Despite this, the current advancements in biodiesel technology face challenges in fully replacing petrochemical diesel, primarily due to the non-green catalytic synthesis and high production cost associated with biodiesel. Ionic liquids containing strong Lewis acids or Br & oslash;nsted acids have been highlighted as a novel class of environmentally friendly solvents and catalysts, showing green and effective catalytic potential in the synthesis of biodiesel via transesterification. In another aspect, reactive distillation technology could facilitate continuous forward reactions catalyzed by ionic liquids by swiftly removing reaction products from the reaction zone, offering advantages in improving the production efficiency, energy consumption, and cost reduction. From this perspective, we discuss the synthesis of biodiesel catalyzed by ionic liquids, supported ionic liquids, amphiphilic ionic liquids, and amphiphilic supported ionic liquids. The focus is on the process for synthesizing biodiesel through catalytic distillation. We emphasize the potential role of the lipophilic group in the ionic liquid catalyst, promoting the mutual solubility of the reactant triglyceride with methanol or ethanol. This enhancement might facilitate contact between the reactants and improve the catalytic efficiency of transesterification. Additionally, we propose several methods to improve the efficiency of biodiesel synthesis catalyzed by ionic liquid catalysts and suggest appropriate reactive distillation processes for biodiesel production.
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| GB/T 7714 | Qi, Zhaoyang , Cui, Rongkai , Lin, Hao et al. Challenges and perspectives on using acidic ionic liquids for biodiesel production via reactive distillation [J]. | GREEN CHEMISTRY , 2024 . |
| MLA | Qi, Zhaoyang et al. "Challenges and perspectives on using acidic ionic liquids for biodiesel production via reactive distillation" . | GREEN CHEMISTRY (2024) . |
| APA | Qi, Zhaoyang , Cui, Rongkai , Lin, Hao , Ye, Changshen , Chen, Jie , Qiu, Ting . Challenges and perspectives on using acidic ionic liquids for biodiesel production via reactive distillation . | GREEN CHEMISTRY , 2024 . |
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Photocatalytic removal of tetracycline (TC) from the wastewater is of great value in the chemical and environmental engineering field. Here, we introduced a facile one-step method for the synthesis of BiOBr/Bi2WO6 heterojunctions by using cheap CTAB as the Br source. We showed the possibility of our method to fine-tune the content of BiOBr in the produced BiOBr/Bi2WO6 by simply changing the dosage of cetyltrimethylammonium bromide (CTAB), providing a platform for the delicate tuning of the visible-light absorbance ability of the composites. With a suitable heterojunction structure of BiOBr/Bi2WO6-0.2, it exhibited an ultrarapid photocatalytic activity towards TC (20 mg center dot L-1), with a competitive removal effi-ciency of 88.1% within 60 min and an ultrahigh removal rate of 0.0349 min-1. It could also be robustly recycled for at least 5 cycles with slight removal efficiency loss. We demonstrated that this exciting pho-tocatalytic performance was due to the highly decreased recombination of photoinduced electrons and holes on our composites by constructing this heterojunction structure, and the resulting center dot OH and .O-2 con-tributed to the effective degradation of TC to CO2.(c) 2022 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
Keyword ：
Bi2WO6 Bi2WO6 BiOBr BiOBr Heterojunction Heterojunction Photocatalytic Photocatalytic Tetracycline Tetracycline Visible light Visible light
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| GB/T 7714 | Tang, Duanlian , Chen, Xiaoyan , Yan, Jiayan et al. Facile one-pot synthesis of a BiOBr/Bi2WO6 heterojunction with enhanced visible-light photocatalytic activity for tetracycline degradation [J]. | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2023 , 53 : 222-231 . |
| MLA | Tang, Duanlian et al. "Facile one-pot synthesis of a BiOBr/Bi2WO6 heterojunction with enhanced visible-light photocatalytic activity for tetracycline degradation" . | CHINESE JOURNAL OF CHEMICAL ENGINEERING 53 (2023) : 222-231 . |
| APA | Tang, Duanlian , Chen, Xiaoyan , Yan, Jiayan , Xiong, Zhuo , Lou, Xiaoyu , Ye, Changshen et al. Facile one-pot synthesis of a BiOBr/Bi2WO6 heterojunction with enhanced visible-light photocatalytic activity for tetracycline degradation . | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2023 , 53 , 222-231 . |
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Deep desulfurization of fuel oil is always a highly challenging issue. In this work, ZrXPTA material was obtained by directly combining the ZrIV active site with PTA, and it was found that ZrXPTA has excellent catalytic activity in the oxidative desulfurization (ODS) process. Further, ZrXPTA was loaded on gamma- Al2O3 by the two-step impregnation to obtain a granular Al2O3@ ZrXPTA composite. The successful synthesis of the material was verified by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), and N2 adsorption-desorption. The results show that Al2O3@ZrXPTA maintains the high ODS activity of ZrXPTA and realizes the rapid and complete removal of dibenzothiophene under mild reaction conditions (T = 40 degrees C, O/S = 4, t = 30 min). The mechanism study shows that the ODS activity of Al2O3@ZrXPTA is wholly derived from the counterpart of ZrXPTA, which benefits from the synergistic catalytic effect between the ZrIV active site and PTA. The direct binding of these two active sites makes the synergistic effect fully exerted. In addition, the recovery of Al2O3@ZrXPTA can be easily realized by simple filtration or decantation, and no significant activity loss was observed after five times recycling. Therefore, Al2O3@ZrXPTA has high ODS activity, high catalytic stability, and great potential as an ODS catalyst in practical applications.
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| GB/T 7714 | Wang, Qinglian , Wang, Huaiyu , Zhong, Jintian et al. Novel High-Activity Al2O3@ZrXPTA Catalysts and Their Catalytic Oxidative Desulfurization, Mechanism, and Molding [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2023 , 62 (6) : 2525-2535 . |
| MLA | Wang, Qinglian et al. "Novel High-Activity Al2O3@ZrXPTA Catalysts and Their Catalytic Oxidative Desulfurization, Mechanism, and Molding" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 62 . 6 (2023) : 2525-2535 . |
| APA | Wang, Qinglian , Wang, Huaiyu , Zhong, Jintian , Qi, Zhaoyang , Chen, Jie , Ye, Changshen et al. Novel High-Activity Al2O3@ZrXPTA Catalysts and Their Catalytic Oxidative Desulfurization, Mechanism, and Molding . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2023 , 62 (6) , 2525-2535 . |
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Solid-supported ionic liquid catalysts (SILs) are the simplest form of a heterogenized ionic liquid and have attracted soaring attention because of the high catalytic activity as well as separation. Unfortunately, instability severely hinders their practical application, and the reason for the deactivation of SILs has not been investigated in detail. In the present study, the immobilized ionic liquid catalysts MIL-101-[IA-SO3H][HSO4] and MIL-101-[IA-COOH][HSO4] were prepared and used to study the stability in the esterification reaction. The results show that compared with MIL-101-[IA-COOH][HSO4], MIL-101-[IA-SO3H][HSO4] has a higher catalytic activity and a lower stability. The deactivation mechanism is discussed based on experiments and theoretical analysis: the protons on -SO3H dissociate in a polar solvent and combine with anion HSO4-, and then, the formative H2SO4 molecule will leach out into the solvent. Our discussion indicates that the stability of immobilized ionic liquids is determined by the substituents of ionic liquid cations and becomes the significant factor controlling the stability limits. The study presented here would be important for understanding the deactivation reason and can help in choosing the suitable cation to avoid leaching of the active site during the reaction.
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| GB/T 7714 | Qi, Zhaoyang , Chen, Jinyi , Chen, Jie et al. Studies on the Stability and Deactivation Mechanism of Immobilized Ionic Liquids in Catalytic Esterification Reactions [J]. | LANGMUIR , 2023 , 39 (2) : 851-861 . |
| MLA | Qi, Zhaoyang et al. "Studies on the Stability and Deactivation Mechanism of Immobilized Ionic Liquids in Catalytic Esterification Reactions" . | LANGMUIR 39 . 2 (2023) : 851-861 . |
| APA | Qi, Zhaoyang , Chen, Jinyi , Chen, Jie , Qiu, Ting , Ye, Changshen . Studies on the Stability and Deactivation Mechanism of Immobilized Ionic Liquids in Catalytic Esterification Reactions . | LANGMUIR , 2023 , 39 (2) , 851-861 . |
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High-efficiency adsorption of aromatic sulfur-containing compounds from liquid hydrocarbon fuels over metal-organic frameworks (MOFs) is challenging because of inert metal sites. A new method, the Ce-enhanced modulation of MOFs' microenvironment, is proposed to modulate the -COO & BULL;& BULL;& BULL;Cu(II)- coordination microenvironment of Hong Kong University of Science and Technology (HKUST-1) using Ce(III) as a molecular scalpel for fabricating abundant high-efficiency Cu(I) and Cu-coordination-unsaturated sites and improving the pore structures around adsorptive sites. The optimal CH-250 thus exhibits adsorptive capacities for 20.2, 28.0, and 58.3 mg S g(-1) of thiophene, benzo-thiophene, and dibenzothiophene, respectively, which are superior to most reported MOFs, zeolites, and nanoporous carbons. The constructed Cu(I) sites show stronger affinity for dibenzothiophene (-0.86 eV) than the initial Cu(II) (-0.74 eV) for out-of-plane adsorption. Further, they are far stronger in-plane adsorption interactions in DBT/CH-250 (-0.90 eV) than those in DBT/HKUST-1 (-0.37 eV). Thus, molecular engineering for modulating the coordination microenvironment of MOFs shows great potential for adsorption desulfurization.
Keyword ：
adsorption desulfurization adsorption desulfurization copper-cerium interaction copper-cerium interaction metal-organic frameworks (MOFs) metal-organic frameworks (MOFs) microenvironment modulation microenvironment modulation molecular engineering molecular engineering
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| GB/T 7714 | Lu, Ping , Qi, Zhaoyang , Chen, Jie et al. Enhancing Adsorption Desulfurization Performance Using Enriched Cu(I) Sites over Microenvironment-Modulated HKUST-1 [J]. | SMALL , 2023 , 19 (49) . |
| MLA | Lu, Ping et al. "Enhancing Adsorption Desulfurization Performance Using Enriched Cu(I) Sites over Microenvironment-Modulated HKUST-1" . | SMALL 19 . 49 (2023) . |
| APA | Lu, Ping , Qi, Zhaoyang , Chen, Jie , Ye, Changshen , Qiu, Ting . Enhancing Adsorption Desulfurization Performance Using Enriched Cu(I) Sites over Microenvironment-Modulated HKUST-1 . | SMALL , 2023 , 19 (49) . |
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