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学者姓名:张良清
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The CuMgZrOx oxide catalysts were employed with economical 2-PrOH as the hydrogen donor for catalytic transfer hydrogenation of ethyl levulinate (EL) to gamma-valerolactone (GVL). The cost-effective Cu1Mg1.15Zr2Ox catalyst exhibited excellent physicochemical properties, with 99.8% EL conversion and 88.0% GVL yield. Studies have shown that sufficient basic sites of the catalyst, along with the maintenance of the Cu2+/Cu+ state rather than Cu0, are crucial for achieving high GVL yields. Optimization of the substrate-to-hydrogen donor ratio (1:3), along with recycling tests and characterization, demonstrated excellent activity (99.5% EL conversion and 90.0% GVL yield) and cycle stability for the Cu1Mg1.15Zr2Ox catalyst, highlighting its strong potential for practical applications. The mechanism for GVL production from EL via the metal hydride as the dominant route was proposed based on rigorous experimental studies and in-depth characterization. Substrate scope evaluation showed that the Cu1Mg1.15Zr2Ox catalyst also exhibited outstanding activity in converting methyl levulinate and butyl levulinate to GVL.
Keyword :
CuMgZrOx CuMgZrOx gamma-Valerolactone gamma-Valerolactone Levulinate esters Levulinate esters Metal hydride route Metal hydride route Stability Stability
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GB/T 7714 | Zhang, Liangqing , Xiao, Hong , Zhou, Ben et al. Systematic study on efficient transfer hydrogenation of levulinate esters to γ-valerolactone over robust catalyst [J]. | JOURNAL OF CATALYSIS , 2025 , 444 . |
MLA | Zhang, Liangqing et al. "Systematic study on efficient transfer hydrogenation of levulinate esters to γ-valerolactone over robust catalyst" . | JOURNAL OF CATALYSIS 444 (2025) . |
APA | Zhang, Liangqing , Xiao, Hong , Zhou, Ben , Hong, Yonglin , Wu, Qiaomei , Qiu, Jiarong et al. Systematic study on efficient transfer hydrogenation of levulinate esters to γ-valerolactone over robust catalyst . | JOURNAL OF CATALYSIS , 2025 , 444 . |
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二元醇(包括乙二醇、丙二醇和丁二醇等)在化工、医疗、生物以及农业等许多领域都有广泛的应用,市场需求量大.目前,二元醇主要以化石资源为原料制备,但是化石资源有限的储量和使用过程中存在环境污染的问题,寻找一条可持续的、绿色的二元醇生产途径受到了越来越多的关注.生物质资源是自然界中唯一可再生的有机碳资源,以生物质基多元醇为原料制备二元醇有望克服化石资源的短缺并实现绿色可持续性发展.本文综述了国内外生物质基多元醇(甘油、赤藓糖醇、木糖醇和山梨醇)催化转化制备二醇催化剂的最新进展,总结了近年来多元醇催化氢解制备二醇的催化类型(外源氢体系和原位氢源体系)、催化效率、反应溶剂、反应途径、催化机制和催化稳定性,并对其未来的发展进行了展望,以期为生物质基多元醇高效催化转化为二元醇提供参考.
Keyword :
二醇 二醇 催化剂 催化剂 多元醇 多元醇 生物质 生物质
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GB/T 7714 | 宋顺明 , 张敬雯 , 张良清 et al. 生物质基多元醇催化转化制备二醇 [J]. | 化工进展 , 2025 , 44 (1) : 228-252 . |
MLA | 宋顺明 et al. "生物质基多元醇催化转化制备二醇" . | 化工进展 44 . 1 (2025) : 228-252 . |
APA | 宋顺明 , 张敬雯 , 张良清 , 邱佳容 , 陈剑锋 , 曾宪海 . 生物质基多元醇催化转化制备二醇 . | 化工进展 , 2025 , 44 (1) , 228-252 . |
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The xZrO2/TiO2-PMo(y) catalysts were synthesized using a conventional impregnation method with TiO2 as the support. By simply adjusting the loading amount of Zr species and the addition of phosphomolybdic acid, the acid and basic properties of the catalysts were rationally modulated. The synthesized 30%ZrO2/TiO2-PMo(6) catalyst exhibited excellent Meerwein-Ponndorf-Verley (MPV) reduction performance, achieving a 90.8% yield of γ-valerolactone (GVL) from levulinic acid (LA) at 180 °C within 3 h. The total acidity, Lewis and Brønsted acid sites, and basic sites of the xZrO2/TiO2-PMo(y) catalysts were characterized and their effects on the MPV reduction of LA to GVL were detailed discussion. The deactivation of the 30%ZrO2/TiO2-PMo(6) catalyst was mainly due to the carbon deposition instead of leaching, and the catalytic performance could be restored through an effective regeneration method. Additionally, the 30%ZrO2/TiO2-PMo(6) catalyst demonstrated superior universality in the MPV reduction of methyl levulinate (ML), ethyl levulinate (EL), and butyl levulinate (BL) to GVL, with yields of 85.3%, 84.2%, and 83.7% for ML, EL, and BL, respectively. This study presents a sustainable method for the MPV reduction of LA to GVL and provides a potentially valuable reference for other reactions that involve the synergistic catalysis of Lewis and Brønsted sites along with basic sites. © 2024 Elsevier Ltd
Keyword :
Catalyst regeneration Catalyst regeneration Fatty acid methyl ester Fatty acid methyl ester Methyl ester Methyl ester
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GB/T 7714 | Zhang, Liangqing , Zhou, Ben , Hong, Yonglin et al. Efficient transformation of levulinic acid/esters to γ-valerolactone via a durable catalyst with simply tunable acid-base sites [J]. | Renewable Energy , 2024 , 236 . |
MLA | Zhang, Liangqing et al. "Efficient transformation of levulinic acid/esters to γ-valerolactone via a durable catalyst with simply tunable acid-base sites" . | Renewable Energy 236 (2024) . |
APA | Zhang, Liangqing , Zhou, Ben , Hong, Yonglin , Wu, Qiaomei , Qiu, Jiarong , Chen, Jianfeng et al. Efficient transformation of levulinic acid/esters to γ-valerolactone via a durable catalyst with simply tunable acid-base sites . | Renewable Energy , 2024 , 236 . |
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The xZrO(2)/TiO2-PMo(y) catalysts were synthesized using a conventional impregnation method with TiO2 as the support. By simply adjusting the loading amount of Zr species and the addition of phosphomolybdic acid, the acid and basic properties of the catalysts were rationally modulated. The synthesized 30%ZrO2/TiO2-PMo(6) catalyst exhibited excellent Meerwein-Ponndorf-Verley (MPV) reduction performance, achieving a 90.8% yield of gamma-valerolactone (GVL) from levulinic acid (LA) at 180 degrees C within 3 h. The total acidity, Lewis and Br & oslash;nsted acid sites, and basic sites of the xZrO(2)/TiO2-PMo(y) catalysts were characterized and their effects on the MPV reduction of LA to GVL were detailed discussion. The deactivation of the 30%ZrO2/TiO2-PMo(6) catalyst was mainly due to the carbon deposition instead of leaching, and the catalytic performance could be restored through an effective regeneration method. Additionally, the 30%ZrO2/TiO2-PMo(6) catalyst demonstrated superior universality in the MPV reduction of methyl levulinate (ML), ethyl levulinate (EL), and butyl levulinate (BL) to GVL, with yields of 85.3%, 84.2%, and 83.7% for ML, EL, and BL, respectively. This study presents a sustainable method for the MPV reduction of LA to GVL and provides a potentially valuable reference for other reactions that involve the synergistic catalysis of Lewis and Br & oslash;nsted sites along with basic sites.
Keyword :
Acid and basicity role Acid and basicity role Catalyst Catalyst Easily adjustable activity Easily adjustable activity gamma-Valerolactone gamma-Valerolactone Levulinic acid/esters Levulinic acid/esters Stable recyclability Stable recyclability
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GB/T 7714 | Zhang, Liangqing , Zhou, Ben , Hong, Yonglin et al. Efficient transformation of levulinic acid/esters to γ-valerolactone via a durable catalyst with simply tunable acid-base sites [J]. | RENEWABLE ENERGY , 2024 , 236 . |
MLA | Zhang, Liangqing et al. "Efficient transformation of levulinic acid/esters to γ-valerolactone via a durable catalyst with simply tunable acid-base sites" . | RENEWABLE ENERGY 236 (2024) . |
APA | Zhang, Liangqing , Zhou, Ben , Hong, Yonglin , Wu, Qiaomei , Qiu, Jiarong , Chen, Jianfeng et al. Efficient transformation of levulinic acid/esters to γ-valerolactone via a durable catalyst with simply tunable acid-base sites . | RENEWABLE ENERGY , 2024 , 236 . |
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Given the current energy crisis and concerns regarding environmental pollution, biomass is considered as a sustainable energy source that can potentially replace fossil fuels, and extensive research of biomass conversion has been directed towards the catalytic transformation of biomass into valuable hexanol and hexanediol. Hexanol and hexanediol are regarded as highly industrially valuable C6 alcohols, with hexanediol playing a crucial role in polyester industry, and hexanol being considered as a suitable alternative fuel. This review provided a comprehensive overview of biomass-derived production of hexanol and hexanediol, considering various feedstocks and catalytic approaches. It systematically outlined recent advancements in the catalytic conversion of biomass-derived compounds, such as cellulose-based substrates, 5-hydroxymethylfurfural and its derivatives, as well as hexanedioic acid and its esters, into hexanol and hexanediol. The review also summarized the applications of 1,6-hexanediol in the catalytic synthesis of C6 compounds (ε -caprolactone, adipic acid, 6-hydroxycaproic acid, and hexanediamine). Furthermore, it provided an outlook on the future trends in catalytic hydrogenation for producing hexanol and hexanediol, aiming to offer theoretical guidance and valuable insights for the eco-friendly and sustainable production of C6 compounds. © 2024 Chemical Industry Press Co., Ltd.. All rights reserved.
Keyword :
biomass-based biomass-based C6 compound C6 compound catalyst catalyst hexanediol hexanediol hexanol hexanol
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GB/T 7714 | Hong, Z. , Zhou, B. , Qiu, J. et al. Biomass-based catalytic transformation for producing hexanol, hexanediol, and their derivatives; [生物质基催化转化制备己醇和己二醇及其衍生品] [J]. | Chemical Industry and Engineering Progress , 2024 , 43 (11) : 6091-6110 . |
MLA | Hong, Z. et al. "Biomass-based catalytic transformation for producing hexanol, hexanediol, and their derivatives; [生物质基催化转化制备己醇和己二醇及其衍生品]" . | Chemical Industry and Engineering Progress 43 . 11 (2024) : 6091-6110 . |
APA | Hong, Z. , Zhou, B. , Qiu, J. , Zhang, L. , Chen, J. , Wang, B. et al. Biomass-based catalytic transformation for producing hexanol, hexanediol, and their derivatives; [生物质基催化转化制备己醇和己二醇及其衍生品] . | Chemical Industry and Engineering Progress , 2024 , 43 (11) , 6091-6110 . |
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Polyethylene terephthalate (PET) is a polymer synthesized via the dehydration and condensation reaction between ethylene glycol and terephthalic acid. PET has emerged as one of the most extensively employed plastic materials due to its exceptional plasticity and durability. Nevertheless, PET has a complex structure and is extremely difficult to degrade in nature, causing severe pollution to the global ecological environment and posing a threat to human health. Currently, the methods for PET processing mainly include physical, chemical, and biological methods. Biological enzyme degradation is considered the most promising PET degradation method. In recent years, an increasing number of enzymes that can degrade PET have been identified, and they primarily target the ester bond of PET. This review comprehensively introduced the latest research progress in PET enzymatic degradation from the aspects of PET-degrading enzymes, PET biodegradation pathways, the catalytic mechanism of PET-degrading enzymes, and biotechnological strategies for enhancing PET-degrading enzymes. On this basis, the current challenges within the enzymatic PET degradation process were summarized, and the directions that need to be worked on in the future were pointed out. This review provides a reference and basis for the subsequent effective research on PET biodegradation.
Keyword :
Biodegradation pathway Biodegradation pathway Bioengineering modification Bioengineering modification Catalytic mechanism Catalytic mechanism PET-degrading enzyme PET-degrading enzyme
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GB/T 7714 | Qiu, Jiarong , Chen, Yuxin , Zhang, Liangqing et al. A comprehensive review on enzymatic biodegradation of polyethylene terephthalate [J]. | ENVIRONMENTAL RESEARCH , 2024 , 240 . |
MLA | Qiu, Jiarong et al. "A comprehensive review on enzymatic biodegradation of polyethylene terephthalate" . | ENVIRONMENTAL RESEARCH 240 (2024) . |
APA | Qiu, Jiarong , Chen, Yuxin , Zhang, Liangqing , Wu, Jinzhi , Zeng, Xianhai , Shi, Xinguo et al. A comprehensive review on enzymatic biodegradation of polyethylene terephthalate . | ENVIRONMENTAL RESEARCH , 2024 , 240 . |
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戊二醇(1,2-戊二醇、1,4-戊二醇及1,5-戊二醇等)是全球广泛使用的重要医药化工原料,不仅可以用作杀菌剂丙环唑的中间体和化妆品配方,还是生产表面活性剂、聚酯纤维和医药等产品的关键成分。近年来,随着国内外市场的发展,开发生产戊二醇的需求不断增加,工业上通常采用不可再生的化石原料制备戊二醇,对环境污染严重,因此以可再生的生物质基为原料催化转化制备戊二醇是一种绿色生产工艺,更具有良好的应用前景和研究价值。本文系统总结了近年来以国内外生物质基平台化合物(木糖、糠醛、糠醇、四氢糠醇、γ-戊内酯和乙酰丙酸)为原料催化加氢制备戊二醇的研究现状,对制备戊二醇的催化剂进行了分析总结,从不同催化体系(贵金属和非贵金属)、反应机理、反应路径、反应条件及催化剂的稳定性等方面进行详细阐述,并且在此基础上从绿色环保和经济等多角度出发对完善生物质基制备戊二醇的生产工艺进行了展望,为进一步开发新型、高效、绿色和稳定的催化剂体系提供参考。
Keyword :
乙酰丙酸 乙酰丙酸 催化剂 催化剂 四氢糠醇 四氢糠醇 戊二醇 戊二醇 糠醇 糠醇 糠醛 糠醛
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GB/T 7714 | 邓佳慧 , 刘毅 , 张良清 et al. 生物质基平台化合物催化转化制备戊二醇 [J]. | 化学进展 , 2024 , 36 (07) : 1061-1087 . |
MLA | 邓佳慧 et al. "生物质基平台化合物催化转化制备戊二醇" . | 化学进展 36 . 07 (2024) : 1061-1087 . |
APA | 邓佳慧 , 刘毅 , 张良清 , 邱佳容 , 陈剑锋 , 曾宪海 . 生物质基平台化合物催化转化制备戊二醇 . | 化学进展 , 2024 , 36 (07) , 1061-1087 . |
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环境科学概论课程是环境科学类专业的基础课,在培养环境专业人才方面发挥着重要作用。在专业课程教学过程中,适当融入契合度高的思政元素,是课程思政背景下教学改革的关键所在。课程组深入挖掘了环境科学概论中蕴含的思政元素,并进行了整体融入设计。文章围绕课程的建设、课程思政理念与教学目标的确定、课程思政元素的挖掘与融入、考核评价体系的构建、教学反思等方面,探索对环境科学概论课程进行全面改革,以实现环境专业知识与思政元素的有机融合,落实立德树人的根本任务。
Keyword :
思政融入方法 思政融入方法 教学改革 教学改革 教学目标 教学目标 环境科学概论 环境科学概论 课程思政 课程思政
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GB/T 7714 | 张良清 , 邱佳容 , 汪炳叔 . 课程思政背景下环境科学概论课程教学改革探索 [J]. | 大学教育 , 2024 , PageCount-页数: 6 (10) : 94-99 . |
MLA | 张良清 et al. "课程思政背景下环境科学概论课程教学改革探索" . | 大学教育 PageCount-页数: 6 . 10 (2024) : 94-99 . |
APA | 张良清 , 邱佳容 , 汪炳叔 . 课程思政背景下环境科学概论课程教学改革探索 . | 大学教育 , 2024 , PageCount-页数: 6 (10) , 94-99 . |
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在如今能源危机以及环境污染的大背景下,生物质作为一种能够代替化石燃料的可再生能源之一,如何将生物质催化转化为有价值的己醇和己二醇在生物质转化领域受到了广泛的研究关注.己醇和己二醇被认为是一种具有高度工业价值的C6醇,其中己二醇在聚酯工业发展的领域有重要的作用,己醇则被认为是一种合适的替代燃料.本文根据原料和不同催化剂对生物质基制备己醇和己二醇的研究工作进行了归纳总结,系统阐述了近年来通过纤维素基、5-羟甲基糠醛及其衍生物、己二酸及其酯类等生物质基催化转化制备己醇和己二醇的研究进展,分析了 1,6-己二醇在催化制备C6化合物(ε-己内酯、己二酸、6-羟基己酸和己二胺)方面的应用,并在此基础上对催化加氢制备己醇和己二醇的发展趋势进行了展望,为未来进一步绿色地生产可持续的C6化合物提供理论指导和有益参考.
Keyword :
C6化合物 C6化合物 催化剂 催化剂 己二醇 己二醇 己醇 己醇 生物质基 生物质基
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GB/T 7714 | 洪泽龙 , 周本 , 邱佳容 et al. 生物质基催化转化制备己醇和己二醇及其衍生品 [J]. | 化工进展 , 2024 , 43 (11) : 6091-6110 . |
MLA | 洪泽龙 et al. "生物质基催化转化制备己醇和己二醇及其衍生品" . | 化工进展 43 . 11 (2024) : 6091-6110 . |
APA | 洪泽龙 , 周本 , 邱佳容 , 张良清 , 陈剑锋 , 汪炳叔 et al. 生物质基催化转化制备己醇和己二醇及其衍生品 . | 化工进展 , 2024 , 43 (11) , 6091-6110 . |
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A series of zirconium phosphate (ZrP) loaded H -beta -25 zeolite (i.e., ZrP@HB) multifunctional composite catalysts were synthesized by a simple co -precipitation method, and the one -pot upgrading for the transfer hydrogenation of furfural to gamma -valerolactone (GVL) was systematically investigated through various characterizations and catalytic evaluation experiments. Comparative characterization analysis of the ZrP@HB-X (Y) catalysts showed that the ZrP@HB-4(4) catalyst has uniform distribution of elements, exhibiting a large specific surface area and hierarchical mesoporous/microporous structure. Fourier transform infrared spectroscopy of pyridine (Py-FTIR) and NH 3 temperature -programmed desorption characterizations indicated the presence of Lewis and Br & oslash; nsted acid sites, as well as weak, moderate, and strong acid sites in the ZrP@HB-4(4) catalyst. It was confirmed by X-ray photoelectron spectroscopy and FTIR that the main reason for Lewis and Br & oslash; nsted acid sites formation is the presence of P-O-Zr, P -O -H, and HB zeolite on the ZrP@HB-4(4) catalyst. The HB zeolite as well as Zr and P ratio, can be easily adjusted to efficiently regulate the acidity strength and Lewis and Br & oslash; nsted acid sites of the ZrP@HB-X(Y) catalysts. The catalytic experiments demonstrated that the physicochemical properties of the ZrP@HB-4(4) catalyst mentioned above significantly enhance the GVL production. Notably, Lewis and Br & oslash; nsted acid sites as well as transition metal sites of Zr in the ZrP@HB-4(4) catalyst were identified as the main factors that enhance the yield of the target product. By optimizing the reaction conditions, the yield of GVL could be as high as 88.16%. Reusability experiments demonstrate that the ZrP@HB-4(4) catalyst possesses excellent stability. Using levulinic acid as the substrate, the yield of GVL reached 93.92%, suggesting its potential versatility.
Keyword :
Efficient upgrading Efficient upgrading Furfural Furfural gamma-Valerolactone gamma-Valerolactone Levulinic acid Levulinic acid Multifunctional catalyst Multifunctional catalyst Transfer hydrogenation Transfer hydrogenation
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GB/T 7714 | Qiu, Jiarong , Liu, Yi , Zhang, Jingwen et al. One-pot cascade process for efficient upgrading of furfural to γ-valerolactone over adjustable Lewis-Brønsted bi-acidic catalyst [J]. | INDUSTRIAL CROPS AND PRODUCTS , 2024 , 214 . |
MLA | Qiu, Jiarong et al. "One-pot cascade process for efficient upgrading of furfural to γ-valerolactone over adjustable Lewis-Brønsted bi-acidic catalyst" . | INDUSTRIAL CROPS AND PRODUCTS 214 (2024) . |
APA | Qiu, Jiarong , Liu, Yi , Zhang, Jingwen , Zhou, Ben , Yang, Qiyue , Zhang, Liangqing et al. One-pot cascade process for efficient upgrading of furfural to γ-valerolactone over adjustable Lewis-Brønsted bi-acidic catalyst . | INDUSTRIAL CROPS AND PRODUCTS , 2024 , 214 . |
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