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学者姓名:梁文俊
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摘要 :
Cubic Cu2O micro/nanocrystals were successfully synthesized by liquid-phase reduction using copper salt of CuSO4 or CuCl2.2H2O, and glucose or ascorbic acid as reducing agent, respectively. The activity of the catalysts was evaluated by light-off curves of CO self-sustained catalytic combustion via temperature-programmed oxidation of CO (CO-TPO), with the results showing the activity of catalysts following the order of Cu2O-ClGLU > Cu2O-S-GLU > Cu2O-S-AA > Cu2O-Cl-AA, (Cl denotes CuCl2.2H2O, GLU denotes glucose, S denotes CuSO4 and AA denotes ascorbic acid, respectively), corresponding to the ignition temperature of 109 degrees C, 122 degrees C, 137 degrees C and 186 degrees C, respectively. The crystal structure, elemental valence, morphology and redox property of the prepared catalysts were analyzed by using various characterization techniques. Combined with in situ infrared spectrum, the CO self-sustained catalytic combustion over Cu2O catalysts mainly follows the Mars-van-Krevelen (M-v-K) mechanism: the adsorbed and activated CO reacts with lattice oxygen to yield CO2 and oxygen vacancy, and then the oxygen vacancy can be replenished by gaseous oxygen. Combined with catalytic performance of high-concentration CO, it is found that the catalysts prepared using glucose as reducing agent are more angular compared with ascorbic acid. The Cu2O-Cl-GLU synthesized with glucose and CuCl2.2H2O exhibits the best catalytic activity among all the catalysts tested, attributing to its more obvious edge and rough crystal surface. The unique structure of Cu2O-Cl-GLU leads to the high exposure rate and coordination unsaturation of atoms on the cubic Cu2O micro/nanocrystals that can improve the ability of activating gaseous O2 and low temperature reducibility, and consequently facilitating the catalytic activity.
关键词 :
Nanocrystals Nanocrystals Carbon monoxide Carbon monoxide Chemically adsorbed oxygen Chemically adsorbed oxygen Cu 2 O micro Cu 2 O micro Self-sustained catalytic combustion Self-sustained catalytic combustion
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GB/T 7714 | Ma, Pandong , Zhang, Chenhang , Dou, Baojuan et al. Synthesis of Cu2O micro/nanocrystals for catalytic combustion of high-concentration CO: The crucial role of glucose [J]. | CHEMOSPHERE , 2023 , 314 . |
MLA | Ma, Pandong et al. "Synthesis of Cu2O micro/nanocrystals for catalytic combustion of high-concentration CO: The crucial role of glucose" . | CHEMOSPHERE 314 (2023) . |
APA | Ma, Pandong , Zhang, Chenhang , Dou, Baojuan , Yi, Xiaokun , Bin, Feng , Liang, Wenjun . Synthesis of Cu2O micro/nanocrystals for catalytic combustion of high-concentration CO: The crucial role of glucose . | CHEMOSPHERE , 2023 , 314 . |
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摘要 :
本发明提供了一种改性赤泥基吸附剂及其制备方法和应用,涉及工业固废资源化利用技术领域。本发明先对赤泥进行酸碱改性(活化和焙烧),使得赤泥转变为介孔材料,大大提高了赤泥的比表面积和孔容,从而显著提高了二氧化碳气体扩散与吸附性能,使得改性赤泥基吸附剂对二氧化碳的吸附容量明显增加。通过采用浸渍法在所得酸碱改性赤泥上负载MgO,提供了更多的碱性活性位点,对二氧化碳的吸附容量有明显的提高。酸碱改性赤泥对二氧化碳主要进行物理吸附,MgO提供碱性活性位点对二氧化碳进行化学吸附,实现了物理和化学吸附的协同作用,提高了对二氧化碳的吸附容量和吸附速率,在常温常压下即可实现吸附二氧化碳,二氧化碳的脱附温度低。
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GB/T 7714 | 梁文俊 , 杨岚 , 方宏萍 et al. 一种改性赤泥基吸附剂及其制备方法和应用 : CN202310226566.5[P]. | 2023-03-10 . |
MLA | 梁文俊 et al. "一种改性赤泥基吸附剂及其制备方法和应用" : CN202310226566.5. | 2023-03-10 . |
APA | 梁文俊 , 杨岚 , 方宏萍 , 张艳 , 刘佳 . 一种改性赤泥基吸附剂及其制备方法和应用 : CN202310226566.5. | 2023-03-10 . |
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摘要 :
本发明公开一种用于挥发性有机污染物去除的均质反应装置,包括圆筒管和优化元件,圆筒管的第一端与气体进口相连通,圆筒管的第二端与气体出口相连通,圆筒管包括催化段,催化段内设置催化剂,优化元件位于第一端与催化段之间。废气由气体进口进入反应装置内,经由第一端进入圆筒管内,废气经过圆筒管内的优化元件后,保证了进入后续催化段的气体的均匀性,以使废气与催化段的催化剂充分反应,提高催化效率,经过催化剂处理的气体经由第二端以及气体出口导出,提高催化效率的同时,还能够有效避免局部大量放热对催化剂以及反应装置造成的损坏,延长设备使用寿命。优化元件与催化段之间的间距能够调整,方便根据工况调整优化元件的位置。
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GB/T 7714 | 梁文俊 , 鞠浩琳 , 石秀娟 et al. 一种用于挥发性有机污染物去除的均质反应装置 : CN202210510358.3[P]. | 2022-05-11 . |
MLA | 梁文俊 et al. "一种用于挥发性有机污染物去除的均质反应装置" : CN202210510358.3. | 2022-05-11 . |
APA | 梁文俊 , 鞠浩琳 , 石秀娟 , 李想 , 刘佳 . 一种用于挥发性有机污染物去除的均质反应装置 : CN202210510358.3. | 2022-05-11 . |
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摘要 :
本发明公开一种强化生物滴滤塔性能的硅藻土基复合填料。将聚乙烯醇和海藻酸钠加入去离子水中,加热搅拌溶解。将所得溶液放置至室温,加入硅藻土、碳酸钙、有机肥及降解菌,搅拌均匀。将得到的硅藻土基复合填料混合溶液滴入到交联溶液中,交联溶液为含质量浓度为2%CaCl2的饱和硼酸溶液,溶剂为水。硅藻土基复合填料混合液中去离子水与交联溶液体积比为1:10。在4℃条件下固定化,取出后用去离子水冲洗三遍,制成硅藻土基复合填料。该填料具有良好的持水性能及营养缓释能力,使用周期长,能够缩短生物滴滤塔启动时间,强化生物滴滤塔抗冲击负荷及停滞能力。
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GB/T 7714 | 刘佳 , 鲁少杰 , 李萍 et al. 一种强化生物滴滤塔性能的硅藻土基复合填料 : CN202211275873.4[P]. | 2022-10-19 . |
MLA | 刘佳 et al. "一种强化生物滴滤塔性能的硅藻土基复合填料" : CN202211275873.4. | 2022-10-19 . |
APA | 刘佳 , 鲁少杰 , 李萍 , 冀芊竹 , 梁文俊 . 一种强化生物滴滤塔性能的硅藻土基复合填料 : CN202211275873.4. | 2022-10-19 . |
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摘要 :
为了有效控制煤尘大气污染和解决农业废弃物再利用的问题,以农业废弃物为原料制备环保抑尘剂并应用于煤尘控制,实现以废治污的目的.该抑尘剂以秸秆酶解液为主要原料,考察了辅料粘结剂、保湿剂和表面活性剂对抑尘剂性能的影响.研究中通过单因素实验确定出粘结剂瓜尔豆胶、阴离子表面活性剂十二烷基硫酸钠(K 12)和保湿剂乳酸钠的比例范围,并通过正交实验的方法优化了抑尘剂配方,所制得的抑尘剂在黏度和溶液的润湿性上可以表现出更优异的抑尘性能,优化配方后抑尘剂的黏度为5.8 mPa?s、表面张力为31.20 mN/m、接触角为15.2°,具有较好的润湿性能;在8 m/s的模拟风速条件下,2 h内可保持100%的抑尘效率,可以实现有效抑制煤尘的作用.煤场实际应用结果表明,使用抑尘剂后可使煤场的PM10浓度由145.2 mg/m3降至环境背景浓度,可以达到有效抑制风力扬尘的效果.
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GB/T 7714 | 梁文俊 , 兰童 , 张志学 et al. 新型环保煤尘抑尘剂的制备及其应用 [J]. | 中国煤炭 , 2021 , 47 (6) : 57-65 . |
MLA | 梁文俊 et al. "新型环保煤尘抑尘剂的制备及其应用" . | 中国煤炭 47 . 6 (2021) : 57-65 . |
APA | 梁文俊 , 兰童 , 张志学 , 任思达 , 王艳磊 . 新型环保煤尘抑尘剂的制备及其应用 . | 中国煤炭 , 2021 , 47 (6) , 57-65 . |
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摘要 :
随着世界范围内新一轮科技革命和信息产业技术革命的发展,新型教育技术如雨后春笋般步入课堂,正引领我国高等教育步入崭新的阶段.针对环境类专业学位课"大气污染控制工程"教学中的一些问题,根据课程的特点,加强课程群建设,将理论和实践教学相结合,打造智慧课堂,促进师生互动,提升教学质量,培养学生的实践能力、思维创新能力、将所学知识融会贯通并综合运用的能力,以符合新工科人才培养需求,实现工程应用型人才培养的教育目标.
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GB/T 7714 | 梁文俊 , 刘佳 , 李坚 . 新工科视角下环境类专业学位课教学改革探索 [J]. | 教育教学论坛 , 2021 , (32) : 47-50 . |
MLA | 梁文俊 et al. "新工科视角下环境类专业学位课教学改革探索" . | 教育教学论坛 32 (2021) : 47-50 . |
APA | 梁文俊 , 刘佳 , 李坚 . 新工科视角下环境类专业学位课教学改革探索 . | 教育教学论坛 , 2021 , (32) , 47-50 . |
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摘要 :
摘?要:新型信息技术的迅猛发展给我国高等教育带来了改革契机,传统课堂教学向智慧课堂发展,混合式教学模式应运而生,为课堂教学的创新提供新的思路。大气污染控制工程课程是面向环境工程专业学生开设的一门重要专业学位课,主要目的是培养学生运用所学的知识能够对实际问题具有认识、分析和解决的能力。本文围绕大气污染控制工程课程教学,详细介绍了采用“雨课堂”的线上线下混合教学模式。根据当前教学改革的发展的趋势,应用“雨课堂”教学工具,从教学过程、教学手段和教学效果三个方面总结了应用“雨课堂”混合式教学的经验,旨在提高专业课程的教学效果,增加学生综合学习及运用专业知识的能力。本文可为高校专业课程的教学改革提供借鉴。
关键词 :
关键词大气污染控制工程 关键词大气污染控制工程 混合教学模式 混合教学模式 线上线下 线上线下 雨课堂 雨课堂
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GB/T 7714 | 梁文俊 , 刘佳 , 宋丽云 et al. 基于雨课堂的“大气污染控制工程”线上线下混合教学模式初探 [J]. | 教育现代化 , 2021 , 8 (12) : 25-27 . |
MLA | 梁文俊 et al. "基于雨课堂的“大气污染控制工程”线上线下混合教学模式初探" . | 教育现代化 8 . 12 (2021) : 25-27 . |
APA | 梁文俊 , 刘佳 , 宋丽云 , 樊星 , 李坚 . 基于雨课堂的“大气污染控制工程”线上线下混合教学模式初探 . | 教育现代化 , 2021 , 8 (12) , 25-27 . |
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摘要 :
In this paper, the effect of organic sulfur on the catalytic oxidation of toluene was explored. It was found that the low concentration of organic sulfur could cause rapid deactivation of the catalyst, and the activity of the catalyst could be restored to 100% after stopping the application of sulfur. The sulfation modification could significantly improve the organic sulfur resistance of the catalyst by changing the support and the sulfation modification of the support. There was a large amount of carbon deposition and a small amount of S-containing substances on the catalyst surface after the introduction of organic sulfur through the methods of TG, BET, FTIR, SEM (Mapping) and XPS. Then, through in-situ DRIFT and CH3SH-TPD, it was found that sulfation modification could inhibit the adsorption of organic sulfur on the catalyst surface and reduce the competitive adsorption. The decrease of catalyst efficiency due to the presence of organic sulfur in the reaction gas during VOCs catalytic oxidation is mainly due to the competitive adsorption of organic sulfur and VOCs molecules, and the temperature of VOCs catalytic oxidation of organic sulfur. Some polyhydrocarbons, ethyl sulfide, dimethyl sulfoxide and other substances were produced by incomplete oxidation, which covered the surface of the catalyst due to adsorption or deposition, resulting in catalyst poisoning.
关键词 :
Catalytic oxidation Catalytic oxidation Organic sulfur Organic sulfur Poison mechanism Poison mechanism VOCs VOCs
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GB/T 7714 | Ren, Sida , Liang, Wenjun , Fang, Hongping et al. Performance and poisoning analysis of organic sulfur resistance of Pd-Ce catalyst in catalytic oxidation of VOCs [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2021 , 9 (6) . |
MLA | Ren, Sida et al. "Performance and poisoning analysis of organic sulfur resistance of Pd-Ce catalyst in catalytic oxidation of VOCs" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 9 . 6 (2021) . |
APA | Ren, Sida , Liang, Wenjun , Fang, Hongping , Zhu, Yuxue . Performance and poisoning analysis of organic sulfur resistance of Pd-Ce catalyst in catalytic oxidation of VOCs . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2021 , 9 (6) . |
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摘要 :
In order to reduce process complexity and manufacturing difficulty, we proposed to use a single air distribution plate to guide the flow and achieve uniform air distribution. We established a three-dimensional model with a size ratio of 1:1 to simulation flow pattern. The optimization results revealed that it is feasible to implement our assumption. After the asterisk plate's optimization, the area uniformity index in the catalytic section was maintained above 0.92 with a maximum value of 0.95, the relative standard deviation was lower than 0.2, and the minimum value was 0.123; and the pressure drop was less than 3.00 Pa, which is in line with the actual use requirements. Among them, Asterisk I with a 30 mm thickness and 15 mm right shift has the best optimization effect. (c) 2021 American Society of Civil Engineers.
关键词 :
Deflector Deflector VOC removal system VOC removal system Optimization Optimization CFD modeling CFD modeling
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GB/T 7714 | Liang, Wen-Jun , Ju, Hao-Lin , Ren, Si-da et al. Application of an Asterisk Plate in the Flow Diversion of the Volatile Organic Compound Removal System [J]. | JOURNAL OF ENVIRONMENTAL ENGINEERING , 2021 , 147 (12) . |
MLA | Liang, Wen-Jun et al. "Application of an Asterisk Plate in the Flow Diversion of the Volatile Organic Compound Removal System" . | JOURNAL OF ENVIRONMENTAL ENGINEERING 147 . 12 (2021) . |
APA | Liang, Wen-Jun , Ju, Hao-Lin , Ren, Si-da , Li, Xiang . Application of an Asterisk Plate in the Flow Diversion of the Volatile Organic Compound Removal System . | JOURNAL OF ENVIRONMENTAL ENGINEERING , 2021 , 147 (12) . |
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摘要 :
In order to reduce the dust pollution caused by the coal mining process, a novel composite environmental dust suppressant for coal dust control was synthesized by corn straw, sodium carboxymethyl cellulose (CMC), and additives. This study focused on the preparation conditions of the dust suppressant, and the performances of which were investigated systematically. Response surface method (RSM) was used to optimize the raw material formulation and preparation parameters. The optimum mass ratio of straw, CMC, and alkali of the dust suppression was 65:20:15 (m/m), which was prepared under the conditions of the reaction time being 1.5 h and the rotation speed being 300 r/min. The pH of the dust suppressant was 8.0, and the state of which was suspension. Additives were benefited to enhance the suppressant performance, and the surface tension and the contact angle could decrease to 32.4 mN/m and 32.0 degrees. The suppressant has a maximum viscosity of 363.6 mPa center dot s, and the compressive strength could be up to 200 kPa. The hygroscopic rate could reach more than 4%. The wind erosion resistance could be up to 99 % at the wind speed of 14 m/s. After spraying the dust suppressant, the gap between particles was filled with dust suppressant, and the adjacent particles were bound by strong mechanical action.
关键词 :
Environmental friendly Environmental friendly Dust suppressant Dust suppressant Straw Straw Agricultural waste Agricultural waste
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GB/T 7714 | Liang, Wenjun , Zhang, Zhixue , Chi, Hao et al. Preparation and optimization of the environmental dust suppressant with agricultural waste straw [J]. | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH , 2021 , 29 (7) : 10198-10209 . |
MLA | Liang, Wenjun et al. "Preparation and optimization of the environmental dust suppressant with agricultural waste straw" . | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 29 . 7 (2021) : 10198-10209 . |
APA | Liang, Wenjun , Zhang, Zhixue , Chi, Hao , Ren, Sida . Preparation and optimization of the environmental dust suppressant with agricultural waste straw . | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH , 2021 , 29 (7) , 10198-10209 . |
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