Topics in Catalysis最新文献_第9页

Immobilization of Xylanase into Zeolitic Imidazolate Framework-67 (ZIF-67) and Manganese-Doped ZIF-67 (Mn/ZIF-67): A Comparison Study 木聚糖酶在沸石咪唑酸框架-67 (ZIF-67) 和掺锰 ZIF-67 (Mn/ZIF-67) 中的固定化：比较研究

IF 3.6 3区化学

Topics in Catalysis Pub Date : 2024-01-31 DOI: 10.1007/s11244-023-01898-1

Büşra Bakar, Gamze Dik, Ahmet Ulu, Burhan Ateş

{"title":"Immobilization of Xylanase into Zeolitic Imidazolate Framework-67 (ZIF-67) and Manganese-Doped ZIF-67 (Mn/ZIF-67): A Comparison Study","authors":"Büşra Bakar, Gamze Dik, Ahmet Ulu, Burhan Ateş","doi":"10.1007/s11244-023-01898-1","DOIUrl":"https://doi.org/10.1007/s11244-023-01898-1","url":null,"abstract":"It has been discovered that metal–organic frameworks (MOFs) have desirable qualities for the immobilization of enzymes, including a high surface area, significant interior pore volumes, and easily changeable pore size. Herein, the xylanase (Xyl) enzyme was immobilized for the first time to two different carrier supports, zeolitic imidazolate framework-67 (ZIF-67) and manganese-doped ZIF-67 (Mn/ZIF-67) by in situ method. The physicochemical characterizations of MOFs with and without Xyl were performed by FT-IR, XRD, SEM, and EDAX techniques. Xyl@ZIF-67 and Xyl@Mn/ZIF-67 were evaluated in terms of optimum temperature, optimum pH, kinetic parameters, thermal stability, reusability as well as juice clarification and compared with free Xyl. Optimum temperature values were 50 °C for Xyl@ZIF-67 and 70 °C for free Xyl and Xyl@Mn/ZIF-67. Optimum pH values for free Xyl, Xyl@ZIF-67, and Xyl@Mn/ZIF-67 were recorded as 6.0, 8.0, and 7.0, respectively. Km values for free Xyl, Xyl@ZIF-67, and Xyl@Mn/ZIF-67 were calculated as 3.139, 5.430, and 0.799 mg/mL, respectively, while Vmax values were calculated as 0.167, 0.226, and 0.062 µmol/min/mL, respectively. The results revealed that in comparison to the free Xyl, Xyl@ZIF-67, and Xyl@Mn/ZIF-67 exhibited more thermal resistance. After incubation at 70 °C for 120 min, the free Xyl remained at 28.7% of the activity, while the Xyl@ZIF-67 and Xyl@Mn/ZIF-67 remained at 85.7% and 40.0%, respectively. Moreover, after eight cycles, the Xyl@ZIF-67 and Xyl@Mn/ZIF-67 retained more than 70% of their initial activity. Further, the transmittance of apple juice was increased from 65.61 to 94.73% and from 77.80 to 84.13%, respectively, when Xyl@ZIF-67 and Xyl@Mn/ZIF-67 were used as biocatalysts. Overall, these findings indicated that the suggested Xyl@ZIF-67 and Xyl@Mn/ZIF-67 have a high potential for juice clarification as an efficient heterogeneous biocatalyst.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"6 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139649423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Light Alkane Dehydroaromatization over Pt-Zn/HZSM-5 Catalyst with Ultralow Pt Loading 在超低铂负载的 Pt-Zn/HZSM-5 催化剂上进行轻烷脱氢芳构化反应

IF 3.6 3区化学

Topics in Catalysis Pub Date : 2024-01-31 DOI: 10.1007/s11244-023-01903-7

Genwei Chen, Anthony Griffin, Zhe Qiang, Hossein Toghiani, Yizhi Xiang

{"title":"Light Alkane Dehydroaromatization over Pt-Zn/HZSM-5 Catalyst with Ultralow Pt Loading","authors":"Genwei Chen, Anthony Griffin, Zhe Qiang, Hossein Toghiani, Yizhi Xiang","doi":"10.1007/s11244-023-01903-7","DOIUrl":"https://doi.org/10.1007/s11244-023-01903-7","url":null,"abstract":"Minimizing Pt loading in dehydroaromatization (DHA) catalysts is critical to the cost-efficient transformation of abundant light alkanes for energy and chemical production. Recent studies in our group show that Pt-Zn/HZSM-5 catalysts with Pt loading of 0.001–0.05 wt% (10–500 ppm) are highly active and stable for ethane DHA (J Am Chem Soc 144(26):11831–11839, 2022). Here, we investigated the catalytic behavior of such catalysts, especially with further decreased Pt loading (< 10 ppm), in both propane and ethane DHA. For propane DHA, we show that the bimetallic Pt-Zn/HZSM-5 catalysts with Pt loading of 50–500 ppm are significantly more active and/or stable than the monometallic counterparts. Such enhancement becomes less significant when decreasing Pt loading to ≤10 ppm. For ethane DHA, the mass-specific activity of the Pt-Zn/HZSM-5 catalysts decreases almost linearly with decreasing Pt loading from 10 to 2.5 ppm, indicating a constant molar-specific activity (TOF) of up to 132 s−1 (molethane/molPt). This breakthrough is achieved owing to the formation of [Pt1-Znn]δ+ ensemble in the micropores of ZSM-5 zeolite.","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"11 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139646421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of Bimetallic Nickel-Cobalt Nanoparticles Supported by Functional Multi-Walled Carbon Nanotubes by Chemical Methods: Characterization and Hydrogen Energy Generation 用化学方法合成以功能性多壁碳纳米管为支撑的双金属镍钴纳米粒子：表征与氢能生成

IF 3.6 3区化学

Topics in Catalysis Pub Date : 2024-01-22 DOI: 10.1007/s11244-024-01907-x

Najmeh Zare, Fatemeh Karimi, Elif Esra Altuner, Hussein Mashkoor, Rima Nour Elhouda Tiri, Fulya Gulbagca, Majede Bijad, Ali Cherif, Fatih Sen

{"title":"Synthesis of Bimetallic Nickel-Cobalt Nanoparticles Supported by Functional Multi-Walled Carbon Nanotubes by Chemical Methods: Characterization and Hydrogen Energy Generation","authors":"Najmeh Zare, Fatemeh Karimi, Elif Esra Altuner, Hussein Mashkoor, Rima Nour Elhouda Tiri, Fulya Gulbagca, Majede Bijad, Ali Cherif, Fatih Sen","doi":"10.1007/s11244-024-01907-x","DOIUrl":"https://doi.org/10.1007/s11244-024-01907-x","url":null,"abstract":"In this study, nickel-cobalt@functionalized multi-walled carbon nanoparticles (NiCo@f-MWCNT NPs) were synthesized, analysed, and used for hydrogen generation via methanolysis on NaBH4. For the NPs synthesis, two steps were conducted (i.e., i: MWCNT was functionalized in an acid medium to support NPs (f-MWCNT); ii: NiCo NPs were synthesized and supplemented with f-MWCNT). Various characterization techniques were used to examine the morphological structure of NiCo@f-MWCNT NPs. The transmission electron microscope (TEM) results showed that the NPs were sized as 3.941 ± 1.094 nm with a spherical structure. The X-ray diffraction analysis (XRD) results indicated an average crystalline size of 1.46 nm. The evaluation of the catalytic performance for hydrogen production revealed that the turnover frequency (TOF) was calculated to be 2934.4 min− 1 with activation energy (Ea) and enthalpy (∆H) of 39.29 kJ/mol and 36.74 kJ/mol, respectively, which indicates high viability for hydrogen transport and generation application and processes.","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"23 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antioxidant and Cardioprotective Property of Polyphenols from Natural Sources on Protein Denaturation and Vasorelaxation in Chick Embryo Model: A Replacing Study for Animal Model Testing 天然来源多酚对雏鸡胚胎模型蛋白质变性和血管舒张的抗氧化和心脏保护特性：替代动物模型测试的研究

IF 3.6 3区化学

Topics in Catalysis Pub Date : 2024-01-17 DOI: 10.1007/s11244-023-01896-3

Azhagu Saravana Babu Packirisamy, Vajiha Aafrin Basheer, Sai Nandhini Ravi, Muthumareeswaran Muthuramamoorthy, Salim Manoharadas, Chandra Mohan Chandrasekar, Sukumar Muthusamy

{"title":"Antioxidant and Cardioprotective Property of Polyphenols from Natural Sources on Protein Denaturation and Vasorelaxation in Chick Embryo Model: A Replacing Study for Animal Model Testing","authors":"Azhagu Saravana Babu Packirisamy, Vajiha Aafrin Basheer, Sai Nandhini Ravi, Muthumareeswaran Muthuramamoorthy, Salim Manoharadas, Chandra Mohan Chandrasekar, Sukumar Muthusamy","doi":"10.1007/s11244-023-01896-3","DOIUrl":"https://doi.org/10.1007/s11244-023-01896-3","url":null,"abstract":"The aim of the study is focussed on investigating the dietary polyphenols and antioxidant potential of Nardostachys jatamansi rhizomes extract (NJRE) and peel extracts of Musa acuminata (red banana) and correlates these findings with specific therapeutic properties. The polyphenolic and phytochemical content of Nardostachys jatamansi rhizomes and peel of Musa acuminata (red banana) extract was evaluated by radical scavenging methods with spectrophotometric and the vasorelaxation study was done on chick embryo model with anti-cholesterol and anti-inflammatory properties. The nutraceutical properties were carried out by estimating the maximum levels of total phenolic (142.1 mg GE/g) for NJRE and (138.3 ± 0.5 mg GE/g) for banana peel extracts. The polyphenols effectively involved in the promotion of anti-inflammatory (79.6%), anti-cholesterol activity (95.35 ± 0.5) with the maximum pancreatic cholesterol esterase inhibition of 98.21% and also enhanced the vasorelaxation by stimulating the smooth muscle in chick embryo (Gallus gallus domesticus). A strong correlation between the polyphenols and therapeutic characteristics of NJRE and banana peel was observed and the polyphenols highlighted a synergism of vasorelaxation. The results from our study will provide a scientific basis for high through put utilization of NJRE and banana peel for the development of nutraceuticals for disease management.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"55 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139500831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbon Nanofibre Modified Platinum Nanomaterials: Synthesis, Characterization and Their Applications toward C1 to C3 Alcohols for Direct Alcohol Fuel Cells 碳纳米纤维修饰的铂纳米材料：合成、表征及其在直接醇燃料电池中对 C1 至 C3 醇的应用

IF 3.6 3区化学

Topics in Catalysis Pub Date : 2024-01-10 DOI: 10.1007/s11244-024-01905-z

Rozhin Darabi, Fatemeh Karimi, Ramazan Bayat, Muhammed Bekmezci, Somaye Cheraghi, Fatih Sen

{"title":"Carbon Nanofibre Modified Platinum Nanomaterials: Synthesis, Characterization and Their Applications toward C1 to C3 Alcohols for Direct Alcohol Fuel Cells","authors":"Rozhin Darabi, Fatemeh Karimi, Ramazan Bayat, Muhammed Bekmezci, Somaye Cheraghi, Fatih Sen","doi":"10.1007/s11244-024-01905-z","DOIUrl":"https://doi.org/10.1007/s11244-024-01905-z","url":null,"abstract":"Innovations in fuel cells bring important developments in obtaining energy. Especially with the anodic reactions of fuel cells and the catalysts used in the anodic part, it provides an increase in energy efficiency. With this study, modification of durable and high catalytic activity targeted carbon nanofibers (CNFs) with Platinum nanostructures (CNF@Pt) developed for alcohol oxidation was provided. Further, CNF@Pt was characterized by Transmission Electron Microscopy (TEM) and X-ray Diffraction (XRD). According to Debye Scherrer, the crystalline particle size was approximately 2.27 nm, and the CNF diameter was measured as 161.57 nm according to the TEM results. Besides, the anodic reactions of methanol, ethanol, and 2-Propanol for direct alcohol fuel cells (DAFC) were investigated. Cyclic Voltammetry (CV), Chronoamperimetry (CA), and recycling performance tests were demonstrated in ideal operating rates of the catalyst. One of the highest anodic peak currents were measured as 145.43, 101.56, and 34.54 mA.cm− 2 for methanol, ethanol, and 2-propanol at a scanning speed of 50 mV/s, respectively. The CNF@Pt catalyst was also very stable and durable in stability tests. In this study, it has been seen that carbon-based fiber materials are an ideal catalyst to increase efficiency in fuel cells and to make sense of the results obtained in their use in different alcohol types.","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"72 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139408037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of La2O3-SiO2 Nanocomposite and Investigation it’s Photocatalytic Performance for Degradation of Toluidine Blue Dye 制备 La2O3-SiO2 纳米复合材料并研究其降解甲苯胺蓝染料的光催化性能

IF 3.6 3区化学

Topics in Catalysis Pub Date : 2024-01-09 DOI: 10.1007/s11244-024-01906-y

引用次数: 0

Development of Catalytically Functionalized Polyester-Based Filters Produced by Flame Spray Pyrolysis 利用火焰喷射热解技术开发催化功能化聚酯过滤器

IF 3.6 3区化学

Topics in Catalysis Pub Date : 2024-01-06 DOI: 10.1007/s11244-023-01892-7

D. Bissinger, J. H. Honerkamp, J. Roldan, J. Bremes, K. Kannen, M. K. Lake, A. Roppertz

{"title":"Development of Catalytically Functionalized Polyester-Based Filters Produced by Flame Spray Pyrolysis","authors":"D. Bissinger, J. H. Honerkamp, J. Roldan, J. Bremes, K. Kannen, M. K. Lake, A. Roppertz","doi":"10.1007/s11244-023-01892-7","DOIUrl":"https://doi.org/10.1007/s11244-023-01892-7","url":null,"abstract":"For industrial processes—like waste incineration—it is necessary to reduce solid components (like dust or fly ash) as well as gaseous components (like dioxins, CO and other harmful hydrocarbons) to fulfill legal requirements. Therefore, catalytically functionalized filters based on polymers already exist. However, it is known that such filters are always constructed in multiple layers to prevent the migration of catalyst particles. This study demonstrates that it is possible to prepare a stable catalytic functionalized single-layer filter based on polyester needle felt by using flame spray pyrolysis. The catalyst is a low temperature active Pt/TiO2 with a loading weight of 38 g/l on the filter. Via SEM images the uniform distribution of the catalytic particles even in the deeper regions of the single-layer filter was proven. The structure was confirmed after experiments under realistic conditions—migration could not be obtained. Likewise, it was obtained that the oxidative conversion of carbon monoxide (CO) to carbon dioxide (CO2) is completely even at temperatures below 100 °C. Furthermore, comparative studies with catalysts on a honeycomb and a ceramic foam have shown that the conversion on the polyester needle felt textile catalyst is comparable.","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"1 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139376184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biomimicking Activity Resembling Phenoxazinone Synthase of Heterogenized Oxidovanadium(V) and Its Analogous Homogeneous Complex 异质化氧化钒(V)及其同质类似物的仿生活性类似于苯并噁嗪酮合成酶

IF 3.6 3区化学

Topics in Catalysis Pub Date : 2024-01-06 DOI: 10.1007/s11244-023-01895-4

Mannar R. Maurya, Akhil Patter, Shailendra K. Maurya

{"title":"Biomimicking Activity Resembling Phenoxazinone Synthase of Heterogenized Oxidovanadium(V) and Its Analogous Homogeneous Complex","authors":"Mannar R. Maurya, Akhil Patter, Shailendra K. Maurya","doi":"10.1007/s11244-023-01895-4","DOIUrl":"https://doi.org/10.1007/s11244-023-01895-4","url":null,"abstract":"Oxidovanadium(V) complex [VVO{Hen(3,5-dcp)4}] (where H4en(3,5-dcp)4, is a Mannich base synthesized from ethylenediamine, paraformaldehyde and 2,4-dichlorophenol) has been anchored onto chloromethylated polystyrene (PS–Cl) cross-linked with divinylbenzene to obtain [VVO{en(3,5-dcp)4}]@PS (@ refers to anchoring of complex onto polymer), a heterogeneous compound. Both of the synthesized (homogeneous as well as heterogeneous) vanadium compounds, after characterization, have been explored as biomimicking model catalysts for the type II copper site in phenoxazinone synthase. These compounds catalyze the oxidative condensation of o-aminophenol (OAP) into 2-aminophenoxazine-3-one (APX) by utilizing aqueous hydrogen peroxide in acetonitrile. Various reaction conditions like amounts of catalyst and oxidant, and temperature have been optimized to obtain maximum yield of APX. The polymer-immobilized complex demonstrates excellent catalytic activity, giving 96% yield of 2-aminophenoxazine-3-one under the optimized reaction conditions selectively. Its homogeneous analogue i.e. [VVO{Hen(3,5-dcp)4}], is also active and exhibits 83% yield. The heterogeneous catalyst i.e. [VVO{en(3,5-dcp)4}]@PS is stable, recyclable and reusable.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"26 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139375948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of Polyhedral Zirconia Nanoparticles for The Photocatalytic Degradation of Anionic Congo Red Dye Under Visible Light Irradiation 在可见光照射下合成用于光催化降解阴离子刚果红染料的多面体氧化锆纳米粒子

IF 3.6 3区化学

Topics in Catalysis Pub Date : 2024-01-06 DOI: 10.1007/s11244-023-01897-2

{"title":"Synthesis of Polyhedral Zirconia Nanoparticles for The Photocatalytic Degradation of Anionic Congo Red Dye Under Visible Light Irradiation","authors":"","doi":"10.1007/s11244-023-01897-2","DOIUrl":"https://doi.org/10.1007/s11244-023-01897-2","url":null,"abstract":"<h3>Abstract</h3> In this study, mixed phase (tetragonal and monoclinic) Zirconia nanoparticles (ZrO2 NPs) namely, ZS3, ZS7 and ZS10 were synthesized via hydrothermal method at different pH values of (3, 7, 10) respectively. A combination of Powder X-ray diffraction (PXRD), High Resolution Transmission Electron Microscopy (HRTEM), and Selected Area Electron Diffraction (SAED) characterization techniques confirmed the formation of mixed phase ZrO2 nanoparticles. The photocatalytic behavior of synthesized ZrO2 NPs was examined for the degradation of anionic Congo Red (CR) Dye under visible light irradiation. A systematic study of the efficiency of the prepared ZS3, ZS7 and ZS10 nanoparticles was compared and it was found that ZS7 outperformed the ZS3 and ZS10 materials, having removal efficiency of up to 98.9% with 0.1 g of the prepared ZS7 nanoparticles for 75 ppm of Congo Red (CR) dye. Furthermore, the surface area analysis revealed that among the prepared materials, ZS7 exhibited the highest surface area, thereby corroborating the finding of its superior catalytic efficiency. Under the optimized experimental conditions, the degradation of dye followed first-order kinetics. ZS7 showed the highest removal efficiency in just 60 min of contact time for all the CR dye concentrations ranging from 50 to 100 ppm, making it a superior catalyst for the efficient removal of the targeted Congo Red dye.","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"52 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139376157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boosting Degradation of Synthetic Dye and Pesticide Residues in Water Using NCDs/FeNH2BDC Photocatalysts 利用 NCDs/FeNH2BDC 光催化剂促进水中合成染料和农药残留的降解

IF 3.6 3区化学

Topics in Catalysis Pub Date : 2024-01-05 DOI: 10.1007/s11244-023-01900-w

{"title":"Boosting Degradation of Synthetic Dye and Pesticide Residues in Water Using NCDs/FeNH2BDC Photocatalysts","authors":"","doi":"10.1007/s11244-023-01900-w","DOIUrl":"https://doi.org/10.1007/s11244-023-01900-w","url":null,"abstract":"<h3>Abstract</h3> The presence of contaminants, such as synthetic dyes and herbicides, in water has led to serious environmental and human health problems worldwide. Therefore, the effective removal of pollutants from aquatic environments has attracted considerable attention. The combination of metal-organic frameworks and advanced carbon materials has attracted great attention in many application fields because the hybrid material has many positive properties from both components. In this paper, NCDs/FeNH2BDC composite was fabricated through in situ synthesis, in which N-containing carbon dots (NCDs) were mixed with MOF precursor solution in different ratios before undergoing the cooling step. It has been demonstrated that introducing a certain amount of N-containing carbon dots affects the characteristic features and improves the photocatalytic performance of the final product. The optimal doping content of N-containing carbon dots in the NCD/FeNH2BDC composite was determined to be 400 mg. SEM images show that S400 appears as hexagonal micro-axial crystals with an average size of 500 nm. In addition, the S400 catalyst also exhibits excellent photocatalytic activity for the degradation of Rhodamine B at a pH range of 3 to 5. Under optimal conditions, Rhodamine B is achieved within 60 min and the yield Removal reached nearly 100% after 5 cycles. Finally, the efficiency of S400 in treating the active ingredient pretilachlor in pesticides in water is up to 93.08%.","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"3 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139105145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0