This paper addresses a new approach based on the Weber-face and singular value decomposition (SVD) methods to improve the recognition accuracy for a face recognition system using local binary patterns and local ternary patterns in an illumination variation environment. The face images are the first extracted illumination-invariant components by the Weber-face method. Secondly, SVD is applied to the encoded images. Next, the training encoded images are extracted features based on local binary patterns or local ternary patterns. Finally, in the classification phase, the singular value matrix of a test image is combined with those of the training images to adjust the illumination of the test image before the features are extracted and classified. The recognition is performed using a nearest neighbor classifier with Chi-square as a dissimilarity measure. Experimental results on the extended Yale B database demonstrated the efficiency of our proposed method. Thus, the proposed approach is expected to contribute to the face recognition problem under varying illumination conditions.
{"title":"Improving the Face Recognition Accuracy under Varying Illumination Conditions for Local Binary Patterns and Local Ternary Patterns Based on Weber-Face and Singular Value Decomposition","authors":"Chi-Kien Tran, Chin-Dar Tseng, Tsair-Fwu Lee","doi":"10.1109/GTSD.2016.10","DOIUrl":"https://doi.org/10.1109/GTSD.2016.10","url":null,"abstract":"This paper addresses a new approach based on the Weber-face and singular value decomposition (SVD) methods to improve the recognition accuracy for a face recognition system using local binary patterns and local ternary patterns in an illumination variation environment. The face images are the first extracted illumination-invariant components by the Weber-face method. Secondly, SVD is applied to the encoded images. Next, the training encoded images are extracted features based on local binary patterns or local ternary patterns. Finally, in the classification phase, the singular value matrix of a test image is combined with those of the training images to adjust the illumination of the test image before the features are extracted and classified. The recognition is performed using a nearest neighbor classifier with Chi-square as a dissimilarity measure. Experimental results on the extended Yale B database demonstrated the efficiency of our proposed method. Thus, the proposed approach is expected to contribute to the face recognition problem under varying illumination conditions.","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133788842","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}
Response surface methodology combined with Box-Behnken experimental design were employed to study the adsorption of U(VI) on microwave activated rice husk ash (ARHA) to elucidate the effects of parameters such as pH, adsorbent dose and U(VI) initial concentration on the adsorption process. Experimental data indicated that pH and adsorbent dose positively affected the adsorption process of U(VI) by ARHA, however, this effect was partially offset by the effect of the initial concentration. The highest adsorption percentage for U(VI) observed at pH of 6.14, adsorbent dose of 0.478 g and U(VI) initial concentration of 38.93 mg/l. With five cycles desorption/adsorption without changing the adsorption efficiency, it could be concluded that ARHA is a promising adsorbent for uranium removal.
{"title":"Optimizing U(VI) Adsorption onto Microwave Activated Rice Husk Ash through Response Surface Methodology","authors":"S. Nguyen, N. T. Tu","doi":"10.1109/GTSD.2016.63","DOIUrl":"https://doi.org/10.1109/GTSD.2016.63","url":null,"abstract":"Response surface methodology combined with Box-Behnken experimental design were employed to study the adsorption of U(VI) on microwave activated rice husk ash (ARHA) to elucidate the effects of parameters such as pH, adsorbent dose and U(VI) initial concentration on the adsorption process. Experimental data indicated that pH and adsorbent dose positively affected the adsorption process of U(VI) by ARHA, however, this effect was partially offset by the effect of the initial concentration. The highest adsorption percentage for U(VI) observed at pH of 6.14, adsorbent dose of 0.478 g and U(VI) initial concentration of 38.93 mg/l. With five cycles desorption/adsorption without changing the adsorption efficiency, it could be concluded that ARHA is a promising adsorbent for uranium removal.","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134032277","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}
The total length of road network in Vietnam is over 20,000kilometers. Millions of cubic meters of materials for pavement construction and rehabilitation are required every year. Vietnam has to import asphalt binder. Good quarry resources are located far from big city and quickly reducing in quantities. Thus, reclaimed asphalt pavement (RAP) technology is considered as the key to reduce the cost and preserve natural environment. After nearly ten years studies this technology, the practice of the technology is still limited in Vietnam. This paper is a describing of reclaimed asphalt pavement technology in practice of Vietnam. Only one of four RAP process are widely applied, although the chosen RAP process may not efficient in all cases.
{"title":"The State-of-Practice Reclaimed Asphalt Pavement in Vietnam","authors":"M. Nguyen, A. Le","doi":"10.1109/GTSD.2016.24","DOIUrl":"https://doi.org/10.1109/GTSD.2016.24","url":null,"abstract":"The total length of road network in Vietnam is over 20,000kilometers. Millions of cubic meters of materials for pavement construction and rehabilitation are required every year. Vietnam has to import asphalt binder. Good quarry resources are located far from big city and quickly reducing in quantities. Thus, reclaimed asphalt pavement (RAP) technology is considered as the key to reduce the cost and preserve natural environment. After nearly ten years studies this technology, the practice of the technology is still limited in Vietnam. This paper is a describing of reclaimed asphalt pavement technology in practice of Vietnam. Only one of four RAP process are widely applied, although the chosen RAP process may not efficient in all cases.","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134183990","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}
Due to Low-Rate Wireless Personal Area Networks(LR-WPANs) is popularly used in Internet of Things (IOT) in recent years, Chiu and Wang proposed a linked list routing algorithm with wormhole mechanism, which includes the linked list network construction mechanism, the wormhole mechanism and the MODBUS extension instructions for data collection. There are still a lot of non-adaptive problems in that algorithm, such that network initialization problem, continuous nodes broken problem and node outliers problem. Those problems could make the whole network stay in unstable state when the special conditions bring out. In this paper, we proposed an adaptive linked-list routing algorithm with wormhole mechanism. By proposed the Lock-address mechanism fundamentally, we can make the stable chain scission, reset sequentially and cutting timer determination mechanism for broken nodes. In simulation, the performance of network initialization of adaptive linked-list routing algorithm with wormhole mechanism and flooding is compared and simulated by NS3 in this paper. The simulations results reveal that the initialization of adaptive linked-list routing algorithm with wormhole mechanism is more efficient than flooding when nodes are 5 meters apart and a matrix model of nodes number from 7*7 to 15*15.
{"title":"The Adaptive Routing Algorithm for Linked-List Wireless Network with Wormhole Mechanism","authors":"J. Chiu, Chien-Lung Chen, Hong-Wei Chiu","doi":"10.1109/GTSD.2016.37","DOIUrl":"https://doi.org/10.1109/GTSD.2016.37","url":null,"abstract":"Due to Low-Rate Wireless Personal Area Networks(LR-WPANs) is popularly used in Internet of Things (IOT) in recent years, Chiu and Wang proposed a linked list routing algorithm with wormhole mechanism, which includes the linked list network construction mechanism, the wormhole mechanism and the MODBUS extension instructions for data collection. There are still a lot of non-adaptive problems in that algorithm, such that network initialization problem, continuous nodes broken problem and node outliers problem. Those problems could make the whole network stay in unstable state when the special conditions bring out. In this paper, we proposed an adaptive linked-list routing algorithm with wormhole mechanism. By proposed the Lock-address mechanism fundamentally, we can make the stable chain scission, reset sequentially and cutting timer determination mechanism for broken nodes. In simulation, the performance of network initialization of adaptive linked-list routing algorithm with wormhole mechanism and flooding is compared and simulated by NS3 in this paper. The simulations results reveal that the initialization of adaptive linked-list routing algorithm with wormhole mechanism is more efficient than flooding when nodes are 5 meters apart and a matrix model of nodes number from 7*7 to 15*15.","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133643239","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}
Solar cell is an exciting invention to show oneof feasible ways to solve energy problems in the world.Solar cell converts solar energy to electricity energy thatcould be stored and transmitted efficiently. The clearnessof solar energy with no pollution has attracted lots ofinterest to install power plants, instead of nuclear powerplants [1-2]. As the evolution, the solar cell is also agood candidate of photo key because of its low cost andhigh reliability. We employee the analog characteristicsof solar cells to design a cryptography circuit to generateanalog secure code..
{"title":"A Reliable and Secure Key Based on Analog Characteristics of Solar-Cells","authors":"Chin-Shiuh Shieh, Yan-Zih Wang, M. Horng","doi":"10.1109/GTSD.2016.33","DOIUrl":"https://doi.org/10.1109/GTSD.2016.33","url":null,"abstract":"Solar cell is an exciting invention to show oneof feasible ways to solve energy problems in the world.Solar cell converts solar energy to electricity energy thatcould be stored and transmitted efficiently. The clearnessof solar energy with no pollution has attracted lots ofinterest to install power plants, instead of nuclear powerplants [1-2]. As the evolution, the solar cell is also agood candidate of photo key because of its low cost andhigh reliability. We employee the analog characteristicsof solar cells to design a cryptography circuit to generateanalog secure code..","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128209215","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}
Quantum dots (QDs) ink from Mn2+-doped ZnS (ZnS:Mn2+) quantum dots with poly(vinyl alcohol) (PVA) as stabilizer has been synthesized by two steps. First, ZnS:Mn2+ quantum dots were prepared by chemical co-precipitation method at room temperature and second, the powder of ZnS:Mn2+ quantum dots was dispersed in a solution of poly(vinyl alcohol) (PVA), de-ionized water, and alcohol to achieve a stable ink formulation. The ZnS:Mn2+ quantum dots exhibited both blue trap-state emission at around 430 nm and a strong orangered emission at about 600 nm with an excitation wavelength of 325 nm. The structural and optical properties of the ZnS:Mn2+ quantum dots were characterized by X-Ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-Visible absorption spectrum and photoluminescence (PL) spectroscopy. XRD analysis showed the formation of cubic ZnS:Mn2+ particles with average sizes from 2.0 to 2.53 nm while the particle size was estimated to be 10 nm from transmission electron microscopy (TEM). The ZnS:Mn2+ quantum dots ink was printed on photographic paper using screen technique. The studied result indicated that the ZnS:Mn2+ quantum dots can be used in the ink printing of security documents and labels, light - emitting diodes (LEDs), in novel photoluminescent display and advertising.
{"title":"Elaboration and Investigation on Photoluminescence Enhancement of Poly (Vinyl Alcohol) Mn2+ Doped ZnS Quantum Dots for Security Ink Applications","authors":"N. Phuong, A. D. Le, Q. Lam, T. B. Vu","doi":"10.1109/GTSD.2016.53","DOIUrl":"https://doi.org/10.1109/GTSD.2016.53","url":null,"abstract":"Quantum dots (QDs) ink from Mn2+-doped ZnS (ZnS:Mn2+) quantum dots with poly(vinyl alcohol) (PVA) as stabilizer has been synthesized by two steps. First, ZnS:Mn2+ quantum dots were prepared by chemical co-precipitation method at room temperature and second, the powder of ZnS:Mn2+ quantum dots was dispersed in a solution of poly(vinyl alcohol) (PVA), de-ionized water, and alcohol to achieve a stable ink formulation. The ZnS:Mn2+ quantum dots exhibited both blue trap-state emission at around 430 nm and a strong orangered emission at about 600 nm with an excitation wavelength of 325 nm. The structural and optical properties of the ZnS:Mn2+ quantum dots were characterized by X-Ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-Visible absorption spectrum and photoluminescence (PL) spectroscopy. XRD analysis showed the formation of cubic ZnS:Mn2+ particles with average sizes from 2.0 to 2.53 nm while the particle size was estimated to be 10 nm from transmission electron microscopy (TEM). The ZnS:Mn2+ quantum dots ink was printed on photographic paper using screen technique. The studied result indicated that the ZnS:Mn2+ quantum dots can be used in the ink printing of security documents and labels, light - emitting diodes (LEDs), in novel photoluminescent display and advertising.","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133486528","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}
Wei-Hao Huang, Guan-Wen Chen, J. Teng, Bin-Han Liu
Advanced Metering Infrastructure (AMI) plays an important role in smart grids. Data Concentrator Unit (DCU), used to collect data from smart meters and transmit them to Meter Database Management System (MDMS) regularly, is the core component in AMI. If DCU can provide value-added functionalities, more efficient AMI management can be achieved. Therefore, this paper designs and develops IEC61850 as a value-added functionality for DCU to solve the communication consistency problem resulting from protocols of different vendors. A windowsbased Human-Machine Interface (HMI) for remote electricity supervisory system using Manufacturing Message Specification(MMS) is also implemented. The Linux-based HMI is used to acquire and monitor the collected data in the proposed IEC61850-based DCU. An experimental DCU platform is implemented to verify the correctness of IEC61850 realized in this paper. Besides, commercialized software is used to validate the communication consistency of IEC 61850 protocols implemented in the proposed DCU.
高级计量基础设施(AMI)在智能电网中发挥着重要作用。数据集中单元(Data Concentrator Unit, DCU)是智能电表的核心部件，用于定期采集智能电表的数据，并将数据传输到仪表数据库管理系统(MDMS)中。如果DCU能够提供增值功能，则可以实现更有效的AMI管理。为此，本文设计并开发了IEC61850作为DCU的一项增值功能，以解决不同厂商协议导致的通信一致性问题。采用制造消息规范(MMS)实现了基于windows的远程电力监控系统人机界面(HMI)。在基于iec61850的DCU中，使用基于linux的HMI来获取和监控所收集的数据。为验证本文所实现的IEC61850的正确性，设计了实验数据处理平台。此外，采用商用软件验证了所设计的数据控制单元所实现的IEC 61850协议的通信一致性。
{"title":"Development of an IEC61850-Based DCU for AMI","authors":"Wei-Hao Huang, Guan-Wen Chen, J. Teng, Bin-Han Liu","doi":"10.1109/GTSD.2016.38","DOIUrl":"https://doi.org/10.1109/GTSD.2016.38","url":null,"abstract":"Advanced Metering Infrastructure (AMI) plays an important role in smart grids. Data Concentrator Unit (DCU), used to collect data from smart meters and transmit them to Meter Database Management System (MDMS) regularly, is the core component in AMI. If DCU can provide value-added functionalities, more efficient AMI management can be achieved. Therefore, this paper designs and develops IEC61850 as a value-added functionality for DCU to solve the communication consistency problem resulting from protocols of different vendors. A windowsbased Human-Machine Interface (HMI) for remote electricity supervisory system using Manufacturing Message Specification(MMS) is also implemented. The Linux-based HMI is used to acquire and monitor the collected data in the proposed IEC61850-based DCU. An experimental DCU platform is implemented to verify the correctness of IEC61850 realized in this paper. Besides, commercialized software is used to validate the communication consistency of IEC 61850 protocols implemented in the proposed DCU.","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126181990","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}
Dealing the energy demand with renewable energy was in vogue nowadays, with implemented of hybrid system in renewable energy was exhibit the optimal use of renewable energy. The well optimization approach was developed to find optimal solution. Generally, they able to find the fit component sizing of generating power which specific output characteristic of the renewable energy. The uncertainty of renewable energy and the variance of the load pattern would be a challenge to optimize the component sizing. Some of statistical method could be implemented to deal with the uncertainty and the randomness of load demand. This paper will present those stochastic approach to find the optimal solution in hybrid renewable energy system. The use of probability density function, Monte-Carlo simulation and evolutionary algorithm was able to model the uncertainty and find the optimal solution in randomness. The energy management also implemented and the flexibility of the hybrid renewable energy will have assessed. In addition, the different approach of evolutionary algorithm could be exhibit.
{"title":"Stochastic Approach in Hybrid Renewable Energy Strategy Optimization","authors":"Achamad Rijal, Chin-Shiuh Shieh, M. Horng","doi":"10.1109/GTSD.2016.32","DOIUrl":"https://doi.org/10.1109/GTSD.2016.32","url":null,"abstract":"Dealing the energy demand with renewable energy was in vogue nowadays, with implemented of hybrid system in renewable energy was exhibit the optimal use of renewable energy. The well optimization approach was developed to find optimal solution. Generally, they able to find the fit component sizing of generating power which specific output characteristic of the renewable energy. The uncertainty of renewable energy and the variance of the load pattern would be a challenge to optimize the component sizing. Some of statistical method could be implemented to deal with the uncertainty and the randomness of load demand. This paper will present those stochastic approach to find the optimal solution in hybrid renewable energy system. The use of probability density function, Monte-Carlo simulation and evolutionary algorithm was able to model the uncertainty and find the optimal solution in randomness. The energy management also implemented and the flexibility of the hybrid renewable energy will have assessed. In addition, the different approach of evolutionary algorithm could be exhibit.","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124581685","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}
Decreasing air pollution concentrations from Internal Combustion Engine (ICE), especially agricultural machines and transporters, is more interested. The current treatment methods have many disadvantages, such as low treatment efficiency, high cost, and complex operation. Therefore, in this study a gas pollution treatment model from ICE by using cold-Plasma is designed and manufactured to solve above problems. MAHA Emission testers for Diesel and Gasoline at the Center motor vehicle registration 50-06V at HCM city are used for results evaluation. The results show that the treatment efficiency of CO, CO2, HC and NOx are about 97%, 95%, 34% and 22%, respectively. The model is portable 260x400x140mm, 8kg and plugin 110V/50Hz or 12 V DC.
{"title":"Treatment Exhaust Gas from Engine by Plasma at Atmospheric Pressure","authors":"T. Dam, Do Van Dung","doi":"10.1109/GTSD.2016.59","DOIUrl":"https://doi.org/10.1109/GTSD.2016.59","url":null,"abstract":"Decreasing air pollution concentrations from Internal Combustion Engine (ICE), especially agricultural machines and transporters, is more interested. The current treatment methods have many disadvantages, such as low treatment efficiency, high cost, and complex operation. Therefore, in this study a gas pollution treatment model from ICE by using cold-Plasma is designed and manufactured to solve above problems. MAHA Emission testers for Diesel and Gasoline at the Center motor vehicle registration 50-06V at HCM city are used for results evaluation. The results show that the treatment efficiency of CO, CO2, HC and NOx are about 97%, 95%, 34% and 22%, respectively. The model is portable 260x400x140mm, 8kg and plugin 110V/50Hz or 12 V DC.","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"53 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113938833","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}
Commercial TiO2 (P25) doped with metallic silver nanoparticles was prepared by γ-irradiation method. The size of silver nanoparticles (AgNPs) was determined by transmission electron microscopy (TEM) to be of 1-2 nm. The photo-catalytic degradation of azo dye Metyl Red (MR) in the aqueous suspensions of TiO2 and Ag/TiO2 under visible light was carried out to evaluate the photo-catalytic activity. Results showed that Ag/TiO2 was found to enhance higher photo-degradation efficiency of Metyl Red (72%) than those of commercial P25-TiO2 (23%). Thus, γ-irradiation method can be suitably applied to prepare photo-catalyst of TiO2 doped with siver nanoparticles with highly photo-catalytic activity under visible light.
采用γ辐照法制备了金属银纳米粒子掺杂的商用TiO2 (P25)。透射电镜(TEM)测定银纳米颗粒(AgNPs)的尺寸为1 ~ 2 nm。在可见光下对偶氮染料meyl Red (MR)在TiO2和Ag/TiO2水悬浮液中的光催化降解性能进行了研究。结果表明，Ag/TiO2对甲基红的光降解效率(72%)高于商用P25-TiO2(23%)。因此，在可见光下，γ-辐照法制备了具有高光催化活性的掺杂银纳米粒子的TiO2光催化剂。
{"title":"Photodegradation of Methyl Red under Visible Light Using Ag/TiO2 Synthesized by γ- Irradiation Method","authors":"Vo Thi Thu Nhu, N. Q. Hien","doi":"10.1109/GTSD.2016.66","DOIUrl":"https://doi.org/10.1109/GTSD.2016.66","url":null,"abstract":"Commercial TiO<sub>2</sub> (P25) doped with metallic silver nanoparticles was prepared by γ-irradiation method. The size of silver nanoparticles (AgNPs) was determined by transmission electron microscopy (TEM) to be of 1-2 nm. The photo-catalytic degradation of azo dye Metyl Red (MR) in the aqueous suspensions of TiO<sub>2</sub> and Ag/TiO<sub>2</sub> under visible light was carried out to evaluate the photo-catalytic activity. Results showed that Ag/TiO<sub>2</sub> was found to enhance higher photo-degradation efficiency of Metyl Red (72%) than those of commercial P25-TiO<sub>2</sub> (23%). Thus, γ-irradiation method can be suitably applied to prepare photo-catalyst of TiO<sub>2</sub> doped with siver nanoparticles with highly photo-catalytic activity under visible light.","PeriodicalId":340479,"journal":{"name":"2016 3rd International Conference on Green Technology and Sustainable Development (GTSD)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124708143","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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