Pub Date : 2021-06-14DOI: 10.1109/CONIIN54356.2021.9634751
Hernandez Muñoz Urian Francisco, G. Ríos-Moreno
Frequently emergency services are required nationally and globally, in Mexico during 2020 of the 16,22,879 calls made to 911, statistics reveal that 58.43% were about security, 16.57% assistance, 13.49% medical, 6.29% civil protection, among others. However, the constant traffic of cities generates delays in the time of arrival to medical, military or civil protection services, wasting time that can be critical in an emergency. The objective is to create a connection between the road infrastructure (traffic lights) and emergency vehicles to reduce waiting time as a vehicle on a mission passes through a traffic light with Controller Area Network CAN controller to modify the color and give way to the emergency vehicle that will send signals to the traffic light controller through a controller located in the car. For this, the Controller Area Network Flexible Data (CAN-FD) controllers will be used in traffic lights since it is capable of synchronizing data in the same bus or cable to avoid that two messages arrive at the same time, which could end in car accidents if they are not it respects a hierarchy and the CANblue ll controller that wirelessly connects devices (vehicle and traffic light) at a speed of 1 Mbit / s to avoid delays in data exchange taking into account the high speeds that a car can acquire. It is intended to use the CAN controller for the development of improvements in response times in high-speed data exchange in cities with high traffic flow. As a result of the use of CAN controllers, a better data flow and interconnection is obtained.
{"title":"Controller of public vehicles and traffic lights to speed up the response time to emergencies","authors":"Hernandez Muñoz Urian Francisco, G. Ríos-Moreno","doi":"10.1109/CONIIN54356.2021.9634751","DOIUrl":"https://doi.org/10.1109/CONIIN54356.2021.9634751","url":null,"abstract":"Frequently emergency services are required nationally and globally, in Mexico during 2020 of the 16,22,879 calls made to 911, statistics reveal that 58.43% were about security, 16.57% assistance, 13.49% medical, 6.29% civil protection, among others. However, the constant traffic of cities generates delays in the time of arrival to medical, military or civil protection services, wasting time that can be critical in an emergency. The objective is to create a connection between the road infrastructure (traffic lights) and emergency vehicles to reduce waiting time as a vehicle on a mission passes through a traffic light with Controller Area Network CAN controller to modify the color and give way to the emergency vehicle that will send signals to the traffic light controller through a controller located in the car. For this, the Controller Area Network Flexible Data (CAN-FD) controllers will be used in traffic lights since it is capable of synchronizing data in the same bus or cable to avoid that two messages arrive at the same time, which could end in car accidents if they are not it respects a hierarchy and the CANblue ll controller that wirelessly connects devices (vehicle and traffic light) at a speed of 1 Mbit / s to avoid delays in data exchange taking into account the high speeds that a car can acquire. It is intended to use the CAN controller for the development of improvements in response times in high-speed data exchange in cities with high traffic flow. As a result of the use of CAN controllers, a better data flow and interconnection is obtained.","PeriodicalId":402828,"journal":{"name":"2021 XVII International Engineering Congress (CONIIN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133346959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-14DOI: 10.1109/CONIIN54356.2021.9634741
Roman E. García-Ferral, F. Reyes‐Cortes, Brandon Sánchez-García
This paper presents a new control algorithm of constant gains for a Proportional Derivative controller with gravity compensation. The problem of position control of manipulator robots in the joint space is solved with the proposed control algorithm. To abord the previously mentioned problem, the energy shaping technique is used. For the development of the algorithm, constant gains were used. The algorithm design is focused on three DOF robots as an experimental platform. The main characteristic of the proposed control scheme is that the algorithm generates bounded torques. The servo actuators of the robot are kept within their physical limits avoiding the saturation zone. To carry out the control structure, a Lyapunov function is proposed. It is shown that there is a point of equilibrium such that it is unique and stable based on the proposed function. To illustrate the performance of the design, simulations were made, and results are placed in the function of error. Designing and implementing control algorithms makes it possible to test performances in manipulative robots, giving the possibility of choosing one that meets the needs of the operators.
{"title":"Design of a control algorithm for a robot manipulator with constant gains","authors":"Roman E. García-Ferral, F. Reyes‐Cortes, Brandon Sánchez-García","doi":"10.1109/CONIIN54356.2021.9634741","DOIUrl":"https://doi.org/10.1109/CONIIN54356.2021.9634741","url":null,"abstract":"This paper presents a new control algorithm of constant gains for a Proportional Derivative controller with gravity compensation. The problem of position control of manipulator robots in the joint space is solved with the proposed control algorithm. To abord the previously mentioned problem, the energy shaping technique is used. For the development of the algorithm, constant gains were used. The algorithm design is focused on three DOF robots as an experimental platform. The main characteristic of the proposed control scheme is that the algorithm generates bounded torques. The servo actuators of the robot are kept within their physical limits avoiding the saturation zone. To carry out the control structure, a Lyapunov function is proposed. It is shown that there is a point of equilibrium such that it is unique and stable based on the proposed function. To illustrate the performance of the design, simulations were made, and results are placed in the function of error. Designing and implementing control algorithms makes it possible to test performances in manipulative robots, giving the possibility of choosing one that meets the needs of the operators.","PeriodicalId":402828,"journal":{"name":"2021 XVII International Engineering Congress (CONIIN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125380393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-14DOI: 10.1109/CONIIN54356.2021.9634725
Ernesto Cortés Pérez, Osiris Montero Rios, Daniel Pacheco Bautista, Sergio Sanchez Sanchez, Francisco Aguilar Acevedo
This paper proposes a solution for university timetable scheduling problem through a Genetic Algorithm. The solution to this problem consists of assigning schedules, subjects and human resources, this for the correct distribution of classes in the Computer Engineering career at the University of Isthmus, in Sto. Domingo Tehuantepec Oaxaca, Mexico. The problem of generating schedules in an educational institution increases in complexity depending on the number of professors, the number of subjects taught and all the constraints existing in that assignment. And so, the need arises to find alternative solutions for this laborious process, one of which is the implementation of a Genetic Algorithm.
{"title":"A Genetic Algorithm Solution for Scheduling Problem","authors":"Ernesto Cortés Pérez, Osiris Montero Rios, Daniel Pacheco Bautista, Sergio Sanchez Sanchez, Francisco Aguilar Acevedo","doi":"10.1109/CONIIN54356.2021.9634725","DOIUrl":"https://doi.org/10.1109/CONIIN54356.2021.9634725","url":null,"abstract":"This paper proposes a solution for university timetable scheduling problem through a Genetic Algorithm. The solution to this problem consists of assigning schedules, subjects and human resources, this for the correct distribution of classes in the Computer Engineering career at the University of Isthmus, in Sto. Domingo Tehuantepec Oaxaca, Mexico. The problem of generating schedules in an educational institution increases in complexity depending on the number of professors, the number of subjects taught and all the constraints existing in that assignment. And so, the need arises to find alternative solutions for this laborious process, one of which is the implementation of a Genetic Algorithm.","PeriodicalId":402828,"journal":{"name":"2021 XVII International Engineering Congress (CONIIN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116796494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-14DOI: 10.1109/CONIIN54356.2021.9634802
Castro Durán Denice Yuliana, López Balderas Nancy Stephanie, G. Ríos-Moreno, O. Chavez-Alegria, M. Trejo-Perea
Throughout the years we have realized the importance of asphalt in everyday life because to transport us from one place to another it is essential to pass the roads. There are a total of 171, 347 km of paved roads in Mexico of which 50, 435 km are federal roads, 101, 460 km state roads, 19,452 km others (municipal, private), 10,557 km toll roads and 1,192 places of payment. A new concept of asphalt pavement with ecological attributes will be questioned. The two main components needed in an asphalt mix (bitumen and aggregates) are focused on. In relation to bitumen, two methods of fresh binder fractionation are explored: one investigates biofluid bitumen, which allows replacing part of the petrochemical binder with bio-based products; and the second, to produce granules with plastic waste (mainly plastic bottles and bags) and replace 20% of the oil-based sticky bitumen that seals traditional roads. The modified asphalt materials are the product of the dissolution or incorporation in the asphalt of a polymer that are stable substances over time and changes in temperature, which are added to the asphalt material to modify its physical and ecological properties, and decrease its susceptibility at temperature and humidity, as well as oxidation.
{"title":"Analysis of new asphalt alternatives with polymers: A review","authors":"Castro Durán Denice Yuliana, López Balderas Nancy Stephanie, G. Ríos-Moreno, O. Chavez-Alegria, M. Trejo-Perea","doi":"10.1109/CONIIN54356.2021.9634802","DOIUrl":"https://doi.org/10.1109/CONIIN54356.2021.9634802","url":null,"abstract":"Throughout the years we have realized the importance of asphalt in everyday life because to transport us from one place to another it is essential to pass the roads. There are a total of 171, 347 km of paved roads in Mexico of which 50, 435 km are federal roads, 101, 460 km state roads, 19,452 km others (municipal, private), 10,557 km toll roads and 1,192 places of payment. A new concept of asphalt pavement with ecological attributes will be questioned. The two main components needed in an asphalt mix (bitumen and aggregates) are focused on. In relation to bitumen, two methods of fresh binder fractionation are explored: one investigates biofluid bitumen, which allows replacing part of the petrochemical binder with bio-based products; and the second, to produce granules with plastic waste (mainly plastic bottles and bags) and replace 20% of the oil-based sticky bitumen that seals traditional roads. The modified asphalt materials are the product of the dissolution or incorporation in the asphalt of a polymer that are stable substances over time and changes in temperature, which are added to the asphalt material to modify its physical and ecological properties, and decrease its susceptibility at temperature and humidity, as well as oxidation.","PeriodicalId":402828,"journal":{"name":"2021 XVII International Engineering Congress (CONIIN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126999892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-14DOI: 10.1109/CONIIN54356.2021.9634707
Elizabeth Silva García, E. Rojas
Expansive soils are a challenge for engineers because they can generate movements and cracks in light structures. Therefore, its study is essential to achieve foundation designs suitable for this type of structure. The variable that directly affects the behavior of expansive clays is suction. This variable generates additional contact forces between soil particles that are known as cohesion. These forces can be known through the determination of the soil-water retention curve. The most widely used method of suction measurement for expansive soils is the filter paper technique, which requires special care for its correct execution. This is mainly due to the sensitivity and precision required for the measurement of paper moisture. In this article, the results of the measurement of the characteristic curve of an expansive clay are presented, using variations and considerations additional to the standard. The result is a comparison between the values obtained when weighing the filter paper before and after the 7-day equilibrium, using a metal container and without it, and considering an immediate measurement and another when the balance has stabilized. It was determined that the weight of dry paper is affected when it is left exposed to a desiccator and when a metallic container is not used to avoid moisture changes to the filter paper. Depending on the way in which the measurement is made, the suction values obtained for a dry expansive clay are so high that they exceed the maximum limit of the filter paper test.
{"title":"Estimation of soil-water retention curve for expansive soils","authors":"Elizabeth Silva García, E. Rojas","doi":"10.1109/CONIIN54356.2021.9634707","DOIUrl":"https://doi.org/10.1109/CONIIN54356.2021.9634707","url":null,"abstract":"Expansive soils are a challenge for engineers because they can generate movements and cracks in light structures. Therefore, its study is essential to achieve foundation designs suitable for this type of structure. The variable that directly affects the behavior of expansive clays is suction. This variable generates additional contact forces between soil particles that are known as cohesion. These forces can be known through the determination of the soil-water retention curve. The most widely used method of suction measurement for expansive soils is the filter paper technique, which requires special care for its correct execution. This is mainly due to the sensitivity and precision required for the measurement of paper moisture. In this article, the results of the measurement of the characteristic curve of an expansive clay are presented, using variations and considerations additional to the standard. The result is a comparison between the values obtained when weighing the filter paper before and after the 7-day equilibrium, using a metal container and without it, and considering an immediate measurement and another when the balance has stabilized. It was determined that the weight of dry paper is affected when it is left exposed to a desiccator and when a metallic container is not used to avoid moisture changes to the filter paper. Depending on the way in which the measurement is made, the suction values obtained for a dry expansive clay are so high that they exceed the maximum limit of the filter paper test.","PeriodicalId":402828,"journal":{"name":"2021 XVII International Engineering Congress (CONIIN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121798313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-14DOI: 10.1109/CONIIN54356.2021.9634745
Everardo Donato Sánchez Topete, M. R. Belmonte, José Gabriel Ríos Moreno, Abraham Lopez Miguel
The greatest contribution of CO2 to the environment is attributed to cement production, responsible for 5 to 8% of global emissions. On the other hand, fly ash (FA) is constituted in an ecologically problematic residue due to its outdoor storage in thermoelectric plants. Considering the need to reduce the carbon footprint, quantity and availability of fly ash in México, Comisión Federal de Electricidad (CFE), it is considered an alternative material for the partial replacement of portland cement, boosting its use and contributing to the decrease in consumption of portland cement (PC). Fly ash improves durability properties in concretes, mechanical resistance is a questioned property, since it is an amorphous material, it reacts slowly and does not achieve high resistances at an early age (28 days). This research aims to develop an efficient methodology to improve the durability properties of the concrete with partial replacement of fly ash which will be obtained from articles with results presented looking to optimize the best design. While the results do not show all the properties and benefits of fly ash to use a fly ash as a concrete substitute material should use a low w/c ratio, the fly ash, if used in the natural state, can be used as up to 10% replacement and if it carries a treatment, it can be used up to 50%, as long as the designs are properly performed.
{"title":"Design of a methodology for the efficient use of fly ash as a partial substitute material for portland cement in concrete mixtures","authors":"Everardo Donato Sánchez Topete, M. R. Belmonte, José Gabriel Ríos Moreno, Abraham Lopez Miguel","doi":"10.1109/CONIIN54356.2021.9634745","DOIUrl":"https://doi.org/10.1109/CONIIN54356.2021.9634745","url":null,"abstract":"The greatest contribution of CO2 to the environment is attributed to cement production, responsible for 5 to 8% of global emissions. On the other hand, fly ash (FA) is constituted in an ecologically problematic residue due to its outdoor storage in thermoelectric plants. Considering the need to reduce the carbon footprint, quantity and availability of fly ash in México, Comisión Federal de Electricidad (CFE), it is considered an alternative material for the partial replacement of portland cement, boosting its use and contributing to the decrease in consumption of portland cement (PC). Fly ash improves durability properties in concretes, mechanical resistance is a questioned property, since it is an amorphous material, it reacts slowly and does not achieve high resistances at an early age (28 days). This research aims to develop an efficient methodology to improve the durability properties of the concrete with partial replacement of fly ash which will be obtained from articles with results presented looking to optimize the best design. While the results do not show all the properties and benefits of fly ash to use a fly ash as a concrete substitute material should use a low w/c ratio, the fly ash, if used in the natural state, can be used as up to 10% replacement and if it carries a treatment, it can be used up to 50%, as long as the designs are properly performed.","PeriodicalId":402828,"journal":{"name":"2021 XVII International Engineering Congress (CONIIN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121279608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-14DOI: 10.1109/CONIIN54356.2021.9634790
Samuel López-Tejeida, Leticia Felix-Cuencas, J. J. De León-Ramírez, L. B. Flores-Tejeida, Maribel Villegas-Villegas, J. F. García-Trejo
The reuse of solid waste coming from aquaculture and aquaponics industry is good not just in the environment ambit; also is a benefited in the economic aspect because it decreases the organic pollutant charge in the environmental aspect, respect to the economic aspect the fish feces is one of the nutritive dung containing almost 4.47% of nitrogen and 2.35% of phosphorous. So the first step to reusing these nutrients is to get a real measure of nitrogen from aquaculture and aquaponics wastewater after this the next step is to decide which kind of technique will be used to reduce the nutrients to an acceptable level. Aquaponics is a recent technology that has the benefit of joining two technologies: aquaculture and hydroponics. The importance of nitrogen measurement falls into controlling the quantity in aquaponics and aquaculture system to avoid problems related to high concentrations.
{"title":"Methods to measure nitrogen content in fish culture: A review","authors":"Samuel López-Tejeida, Leticia Felix-Cuencas, J. J. De León-Ramírez, L. B. Flores-Tejeida, Maribel Villegas-Villegas, J. F. García-Trejo","doi":"10.1109/CONIIN54356.2021.9634790","DOIUrl":"https://doi.org/10.1109/CONIIN54356.2021.9634790","url":null,"abstract":"The reuse of solid waste coming from aquaculture and aquaponics industry is good not just in the environment ambit; also is a benefited in the economic aspect because it decreases the organic pollutant charge in the environmental aspect, respect to the economic aspect the fish feces is one of the nutritive dung containing almost 4.47% of nitrogen and 2.35% of phosphorous. So the first step to reusing these nutrients is to get a real measure of nitrogen from aquaculture and aquaponics wastewater after this the next step is to decide which kind of technique will be used to reduce the nutrients to an acceptable level. Aquaponics is a recent technology that has the benefit of joining two technologies: aquaculture and hydroponics. The importance of nitrogen measurement falls into controlling the quantity in aquaponics and aquaculture system to avoid problems related to high concentrations.","PeriodicalId":402828,"journal":{"name":"2021 XVII International Engineering Congress (CONIIN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124184355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-14DOI: 10.1109/CONIIN54356.2021.9634182
Angel H. Rangel-Rodriguez, Jesús A. Estrada-Salazar, J. Amezquita-Sanchez, D. Granados-Lieberman, M. Valtierra-Rodríguez
The condition monitoring and the fault detection in wind turbines reduce the cost of repairment and maintenance tasks. An early detection of faults allows repairing before the damage is aggravated. In this article, a methodology based on convolutional neural networks and the time-frequency plane of vibration signals for the detection of three different levels of imbalance damage (low, medium, and high) is presented. In general, the methodology consists of the acquisition of vibration signals from three levels of imbalance and the condition with no damage. Then, the spectrogram function is applied to get an image from the time-frequency plane of the vibration signals. This image is segmented and analyzed by the convolutional neural network to detect the level of imbalance damage. Results show the proposal effectiveness as 100 % of accuracy is obtained.
{"title":"Imbalance Detection in Low Power Turbine Through Vibration Signals and Convolutional Neural Networks","authors":"Angel H. Rangel-Rodriguez, Jesús A. Estrada-Salazar, J. Amezquita-Sanchez, D. Granados-Lieberman, M. Valtierra-Rodríguez","doi":"10.1109/CONIIN54356.2021.9634182","DOIUrl":"https://doi.org/10.1109/CONIIN54356.2021.9634182","url":null,"abstract":"The condition monitoring and the fault detection in wind turbines reduce the cost of repairment and maintenance tasks. An early detection of faults allows repairing before the damage is aggravated. In this article, a methodology based on convolutional neural networks and the time-frequency plane of vibration signals for the detection of three different levels of imbalance damage (low, medium, and high) is presented. In general, the methodology consists of the acquisition of vibration signals from three levels of imbalance and the condition with no damage. Then, the spectrogram function is applied to get an image from the time-frequency plane of the vibration signals. This image is segmented and analyzed by the convolutional neural network to detect the level of imbalance damage. Results show the proposal effectiveness as 100 % of accuracy is obtained.","PeriodicalId":402828,"journal":{"name":"2021 XVII International Engineering Congress (CONIIN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128441889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-14DOI: 10.1109/CONIIN54356.2021.9634773
J. Becerra-Ruiz, I. Rangel-Vázquez, J. Jáuregui-Correa, Gloria A. Del Angel-Montes
This work shows results obtained in photocatalytic water splitting for production of hydrogen (H2) using Graphene Oxide – additioned Titanium photocatalysts, P25–GO (Degussa P25 with Graphene Oxide) with different proportion in weight of GO (0.5, 2 and 4 %). Materials were characterized by DRX, FTIR, Raman, UV-vis and SEM. The phases detected by XRD characterization are anatase and rutile of TiO2 and GO, this is confirmed by means of Raman spectroscopy. In FTIR spectra, presence of GO and reduced (rGO) in the impregnated P25–GO photocatalysts was observed. UV-Vis spectroscopy (diffuse reflectance) and applying the Kubelka–Munk theory, it was observed that incorporation of GO to TiO2 lead to a shifted of the Eg towards visible region in the interval of 2.96–3.14 eV. The reaction for H2 production was monitored during 6 hours of reaction at room temperature and by means of a Shimadzu GC-2014 chromatograph. Where maximum production of H2 was obtained with the P25–GO 2% photocatalyst with 45,006 μmol and secondly P25–GO 4% with 21,922 μmol, using a UV vapor lamp of Hg.
{"title":"Photo-catalytic water splitting : TiO2 – GO for water splitting","authors":"J. Becerra-Ruiz, I. Rangel-Vázquez, J. Jáuregui-Correa, Gloria A. Del Angel-Montes","doi":"10.1109/CONIIN54356.2021.9634773","DOIUrl":"https://doi.org/10.1109/CONIIN54356.2021.9634773","url":null,"abstract":"This work shows results obtained in photocatalytic water splitting for production of hydrogen (H2) using Graphene Oxide – additioned Titanium photocatalysts, P25–GO (Degussa P25 with Graphene Oxide) with different proportion in weight of GO (0.5, 2 and 4 %). Materials were characterized by DRX, FTIR, Raman, UV-vis and SEM. The phases detected by XRD characterization are anatase and rutile of TiO2 and GO, this is confirmed by means of Raman spectroscopy. In FTIR spectra, presence of GO and reduced (rGO) in the impregnated P25–GO photocatalysts was observed. UV-Vis spectroscopy (diffuse reflectance) and applying the Kubelka–Munk theory, it was observed that incorporation of GO to TiO2 lead to a shifted of the Eg towards visible region in the interval of 2.96–3.14 eV. The reaction for H2 production was monitored during 6 hours of reaction at room temperature and by means of a Shimadzu GC-2014 chromatograph. Where maximum production of H2 was obtained with the P25–GO 2% photocatalyst with 45,006 μmol and secondly P25–GO 4% with 21,922 μmol, using a UV vapor lamp of Hg.","PeriodicalId":402828,"journal":{"name":"2021 XVII International Engineering Congress (CONIIN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134017409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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