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学者姓名：梁文俊
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Abstract ：
Cerium oxide (CeO2) was added to modified Ru/TiO2 catalyst by a two-step impregnation method for selective catalytic oxidation of ammonia (NH3-SCO). The low-temperature NH3 oxidation activity and N2 selectivity of the 1Ru/xCe-TiO2 catalyst were investigated with the result that both SCO activity and N2 selectivity were influenced by the amount of Ce. Specifically, the presence of 5 wt% CeO2 demonstrated a great promoting effect on both parameters, reaching an NH3 conversion and N2 selectivity of 97 % and 93 % at 180 degrees C, respectively. Various characterization methods indicated that the presence of CeO2 regulates the dispersion of the 1Ru/xCeTiO2 catalysts, changes the amount, strength and ratio of strong and weak acid sites on the catalyst surface, and promotes the formation of Ru-O-Ce bonds through the interaction between Ce and Ru species, which facilitates electron transfer and oxygen vacancy formation, thereby enhancing the oxidation ability of the catalysts. Furthermore, the results of in situ diffuse reflectance infrared Fourier transform spectroscopy indicated that the NH3-SCO reaction over the 1Ru/xCe-TiO2 catalysts follows the "internal" selective catalytic reduction (i-SCR) mechanism, involving the oxidation of NH3 into nitric oxide (NO) species and the reaction of -NH2 with in situformed NO to form N2.
Keyword ：
Ammonia slip Ammonia slip Cerium Cerium Catalysts Catalysts Surface acidity Surface acidity i-SCR mechanism i-SCR mechanism Ruthenium Ruthenium
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| GB/T 7714 | Li, Shuangye , Li, Jian , Liang, Wenjun et al. Promoting effects of cerium oxide on catalysts performance for selectivity catalytic oxidation of NH3over RuOx /TiO2 [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (5) . |
| MLA | Li, Shuangye et al. "Promoting effects of cerium oxide on catalysts performance for selectivity catalytic oxidation of NH3over RuOx /TiO2" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 . 5 (2024) . |
| APA | Li, Shuangye , Li, Jian , Liang, Wenjun , Cai, Jianyu , Guo, Ruixue . Promoting effects of cerium oxide on catalysts performance for selectivity catalytic oxidation of NH3over RuOx /TiO2 . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2024 , 12 (5) . |
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Abstract ：
以改性赤泥为载体,采用浸渍方法制备低成本改性赤泥(MRM)负载Pt催化剂,并探究Pt含量对Pt/MRM催化剂催化氧化甲苯活性影响.结果表明0.4Pt/MRM表现出最佳的催化活性,在230℃时甲苯转化率为100%.当空速高达120000h~(-1)时0.4Pt/MRM催化剂依然能保持着较高的催化活性.当甲苯进口浓度为5000mg/m~3时仍可以有效氧化甲苯.采用XRD、FT-IR、BET、H_2-TPR和O_2-TPD等手段进行表征测试分析发现,MRM的比表面积较RM大幅度提高,使MRM能够更好分散活性组分Pt,成为合适的活性组分Pt的催化剂载体.同时所制备的x Pt/MRM催化剂具有较高的比表面积和良好的孔结构.改性赤泥中Fe_2O_3与活性组分Pt物种相互作用,使催化剂的总氧解吸量增大,提高了催化剂表面氧的迁移率,从而提高了催化效率.
Keyword ：
改性赤泥 改性赤泥 Pt Pt 甲苯 甲苯 催化燃烧 催化燃烧
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| GB/T 7714 | 方宏萍 , 梁文俊 , 马琛 et al. 改性赤泥负载Pt催化剂催化氧化甲苯的性能 [J]. | 中国环境科学 , 2024 , 44 (03) : 1244-1252 . |
| MLA | 方宏萍 et al. "改性赤泥负载Pt催化剂催化氧化甲苯的性能" . | 中国环境科学 44 . 03 (2024) : 1244-1252 . |
| APA | 方宏萍 , 梁文俊 , 马琛 , 马连刚 , 李桂贤 . 改性赤泥负载Pt催化剂催化氧化甲苯的性能 . | 中国环境科学 , 2024 , 44 (03) , 1244-1252 . |
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Abstract ：
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.
Keyword ：
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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Abstract ：
通过等体积浸渍法制备了一系列Mn-Ce/γ-Al_2O_3催化剂,并考察不同CeO_2负载量对MnO_2/γ-Al_2O_3催化剂催化氧化甲苯性能的影响。利用XRD、N_2吸脱附曲线、TEM、H_2-TPR、XPS和O_2-TPD等方法表征催化剂比表面积、表面形貌及氧化还原性能。结果表明，CeO_2的负载一定程度上降低了MnO_2/γ-Al_2O_3催化剂的比表面积,且催化剂仍保持介孔结构。CeO_2的存在增加了催化剂表面的化学吸附氧含量，其良好的储放氧能力促进了Mn~(3+)向Mn~(4+)的转化；Mn和Ce之间存在较强的协同作用,与MnO_x相邻的CeO_2更容易打开Ce—O键释放活性氧,加速氧化还原进程，Mn_(0.6)Ce_(0.4)/γ-Al_2O_3催化剂T10和T90与MnO_2/γ-Al_2O_3催化剂相比分别降低20和40℃。本研究可为VOCs催化氧化技术中低成本金属催化剂的开发提供参考。
Keyword ：
协同作用 协同作用 催化氧化 催化氧化 MnO_2 MnO_2 CeO_2 CeO_2 甲苯 甲苯
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| GB/T 7714 | 任思达 , 潘文 , 梁文俊 et al. Mn-Ce复合金属氧化物催化氧化甲苯性能 [J]. | 环境工程学报 , 2023 , 17 (08) : 2615-2623 . |
| MLA | 任思达 et al. "Mn-Ce复合金属氧化物催化氧化甲苯性能" . | 环境工程学报 17 . 08 (2023) : 2615-2623 . |
| APA | 任思达 , 潘文 , 梁文俊 , 闫贺 , 赵锦 , 李劲松 . Mn-Ce复合金属氧化物催化氧化甲苯性能 . | 环境工程学报 , 2023 , 17 (08) , 2615-2623 . |
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Abstract ：
Monolithic catalysts are widely used in industrial catalysis. However, in the preparation of a monolithic catalyst, the traditional methods have some drawbacks such as low washcoat uploading ratio and poor uniformity. In the present work, the effects of Pd/Ce loading and catalyst components on the catalytic abatement of toluene were investigated. The acid treatment of the substrate, the particle size of the slurry and the dispersant on the uniformity of the washcoat and the catalytic performance were also explored. Characterisation was achieved via BET, SEM, zeta potential and laser grain-size analyses. The results showed that the catalytic activity of the catalyst increased with the increasing of the Ce content. It was found that the 0.2Pd-0.3Ce/gamma-Al2O3 catalysts had the best toluene catalytic activity. The pretreatment of the cordierite with 20% HCl could improve the properties of the cordierite. It was also found that reducing the particle size of the washcoat and adding dispersant PAA could effectively improve the stability of the suspension and the uniformity of the washcoat. When 20% HCl pretreatment was used, the toluene catalytic activity of the monolith catalyst prepared by cordierite increased, in which T-10 and T-90 decreased by about 5 degrees C. Decreasing the particle size and dispersant also promoted the efficiency of catalytic degradation.
Keyword ：
Pd Pd CeO2 CeO2 monolithic catalyst monolithic catalyst catalytic performance catalytic performance
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| GB/T 7714 | Liang, Wenjun , Shi, Xiujuan , Li, Qinglei et al. Effect of Pd/Ce Loading and Catalyst Components on the Catalytic Abatement of Toluene [J]. | CATALYSTS , 2022 , 12 (2) . |
| MLA | Liang, Wenjun et al. "Effect of Pd/Ce Loading and Catalyst Components on the Catalytic Abatement of Toluene" . | CATALYSTS 12 . 2 (2022) . |
| APA | Liang, Wenjun , Shi, Xiujuan , Li, Qinglei , Ren, Sida , Yin, Guobin . Effect of Pd/Ce Loading and Catalyst Components on the Catalytic Abatement of Toluene . | CATALYSTS , 2022 , 12 (2) . |
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Abstract ：
Metal Palladium species are efficiently used to degrade volatile organic compounds (VOCs). In this paper, the adsorption properties of toluene on Pd(111) and PdO(101) surfaces were theoretically studied using the first principle calculation. Adsorption energy, charge density, density of states and electron density difference were chosen as characteristics and were calculated to evaluate the adsorption capacity of toluene on Pd(111) and PdO (101) surfaces. The results showed that the interaction of toluene on the Pd(111) surface was stronger than on the PdO(101) surface. The dissociation pathway of toluene after adsorption was also determined; the results showed that the formation of benzyl radical through the reaction with a hydroxyl group on the Pd(111) and PdO (101) surfaces was investigated using density functional theory calculations. Compared with PdO(101) (0.63 eV), the dissociation of toluene on Pd(111) (0.19 eV) has a lower energy barrier, which indicated that the reaction between toluene and Pd(111) was easier to occur. Therefore, it provides the basis for the preparation of highperformance catalysts and the calculation of catalytic oxidation reaction paths in the future.
Keyword ：
Pd(111) Pd(111) PdO(101) PdO(101) First principle calculation First principle calculation Toluene Toluene Dissociation Dissociation Adsorption Adsorption
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| GB/T 7714 | Liang, Wenjun , Li, Xiang , Ju, Haolin et al. Adsorption and dissociation mechanism of toluene on Pd (111) and PdO (101) surface: First principle calculation [J]. | SURFACE SCIENCE , 2022 , 720 . |
| MLA | Liang, Wenjun et al. "Adsorption and dissociation mechanism of toluene on Pd (111) and PdO (101) surface: First principle calculation" . | SURFACE SCIENCE 720 (2022) . |
| APA | Liang, Wenjun , Li, Xiang , Ju, Haolin , Ren, Sida . Adsorption and dissociation mechanism of toluene on Pd (111) and PdO (101) surface: First principle calculation . | SURFACE SCIENCE , 2022 , 720 . |
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Abstract ：
Ru/TiO2 and Ru-Ce/TiO2 catalysts were prepared by the equal-volume impregnation method to test their catalytic oxidation of chlorobenzene(CB), with the aim to investigate the effect of Ce addition on the redox capacity of the catalysts under the premise of reducing the content of noble metals. It was found that the introduction of Ce conserved the high catalytic efficiency of the catalyst while reducing the content of noble metal, and the catalysis of CB was greatly improved at low temperatures. Compared with the 0.4Ru/TiO2 catalyst, the T-10 and T-90 of the 0.4Ru-1.0Ce/TiO2 catalyst decreased by 50 degrees C and 60 degrees C respectively. It presented high reaction rate at 170. with an increase from 1.21 x 10(-8) mol/min.m(2) for the 0.4Ru/TiO2 catalyst to 10.45 x 10(-8) mol/min.m(2), making it even better than the 2.0Ru/TiO2 catalyst. The structure and morphology of the Ru/TiO2 catalyst did not change with the Ce doping and the mesoporous structure of the catalysts was maintained. CeO2 can not only store and release oxygen, but also improve the activity and dispersion of precious metal loaded. The formation of Ru-O-Ce under the interaction between CeO2 and Ru species promoted electron transfer and improved the mobility of surface oxygen, thus forming RuOx with higher valance. The introduction of Ce improved the yield of COx and selectivity towards inorganic chlorine (HCl and Cl-2) and prevented the catalyst from producing more chlorinated by-products, thus greatly reducing the chance of producing more toxic dioxins.
Keyword ：
Ruthenium Ruthenium Chlorobenzene Chlorobenzene Ru-Ce/TiO2 Ru-Ce/TiO2 Cerium Cerium Catalytic oxidation Catalytic oxidation
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| GB/T 7714 | Liang, Wenjun , Zhu, Yuxue , Ren, Sida et al. Catalytic combustion of chlorobenzene at low temperature over Ru-Ce/TiO2: High activity and high selectivity [J]. | APPLIED CATALYSIS A-GENERAL , 2021 , 623 . |
| MLA | Liang, Wenjun et al. "Catalytic combustion of chlorobenzene at low temperature over Ru-Ce/TiO2: High activity and high selectivity" . | APPLIED CATALYSIS A-GENERAL 623 (2021) . |
| APA | Liang, Wenjun , Zhu, Yuxue , Ren, Sida , Li, Qinglei , Song, Liyun , Shi, Xiujuan . Catalytic combustion of chlorobenzene at low temperature over Ru-Ce/TiO2: High activity and high selectivity . | APPLIED CATALYSIS A-GENERAL , 2021 , 623 . |
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Abstract ：
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.
Keyword ：
煤尘 煤尘 正交实验 正交实验 秸秆 秸秆 抑尘剂 抑尘剂 单因素实验 单因素实验
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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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Abstract ：
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。
Keyword ：
线上线下 线上线下 混合教学模式 混合教学模式 雨课堂 雨课堂 关键词大气污染控制工程 关键词大气污染控制工程
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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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Abstract ：
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.
Keyword ：
教学改革 教学改革 工程应用型人才 工程应用型人才 新工科 新工科 大气污染控制工程 大气污染控制工程
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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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