Journal of Photocatalysis最新文献_第2页

Reductive Dehalogenation – Challenges of Perfluorinated Organics 还原脱卤——全氟有机物的挑战

Journal of Photocatalysis Pub Date : 2021-11-17 DOI: 10.2174/2665976x02666211117115318

J. Kisała, J. Goclon, D. Pogocki

引用次数: 0

Optical Transmission Losses of a TiO2-based Anti-soiling Coating for Usein Outdoor Photovoltaic Applications 户外光伏应用中二氧化钛防污涂层的光传输损耗

Journal of Photocatalysis Pub Date : 2021-11-01 DOI: 10.2174/2665976x02666211022150845

M. Babin, Daniel Alvarez Mira, Yashaswa Surya Aryan, Marina García-Agúndez Blanco, P. Poulsen, Sune Thorsteinsson

{"title":"Optical Transmission Losses of a TiO2-based Anti-soiling Coating for Use\u0000in Outdoor Photovoltaic Applications","authors":"M. Babin, Daniel Alvarez Mira, Yashaswa Surya Aryan, Marina García-Agúndez Blanco, P. Poulsen, Sune Thorsteinsson","doi":"10.2174/2665976x02666211022150845","DOIUrl":"https://doi.org/10.2174/2665976x02666211022150845","url":null,"abstract":"\u0000\u0000Soiling can be a major challenge for photovoltaic (PV) installations, depending\u0000on their location, as it reduces transmission and can lead to significant losses. Anti-soiling coatings\u0000have been demonstrated to reduce soiling losses and thereby increase PV power production.\u0000\u0000\u0000\u0000This article investigates the applicability of a titanium-dioxide-based anti-soiling coating\u0000developed by Photocat under the name “ShineOn” for use with PV installations. The main parameter\u0000examined is the optical transmission losses, as this directly translates to performance losses during\u0000non-soiled operations.\u0000\u0000\u0000\u0000Measurements of transmittance are carried out using both indoor laboratory setups as well\u0000as outdoor PV installations, including measurements of the short-circuit current (Isc), incidence angle\u0000modifier (IAM) and spectral transmittance. Investigated samples include both full-sized modules and\u0000custom-made mini-modules containing a single solar cell.\u0000\u0000\u0000\u0000Both indoor and outdoor measurements show minor transmission losses in the range of 0.3 to\u00000.6 % and negligible effects on the IAM. Additionally, observations indicate that samples should be\u0000coated after lamination, as losses for samples coated before lamination are slightly higher.\u0000\u0000\u0000\u0000As the transmission losses due to the ShineOn coating are small and no additional angular-\u0000dependent losses were observed, the coating is deemed not to be detrimental for PV applications.\u0000Proper assessment of the usefulness requires investigations of the anti-soiling properties, for example,\u0000through test installations in regions with high soiling rates.\u0000","PeriodicalId":246025,"journal":{"name":"Journal of Photocatalysis","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116998588","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}

引用次数: 0

Ag-TiO2 Nanocomposites: visible or solar light driven plasmonic photocatalysis? Ag-TiO2纳米复合材料:可见光还是太阳能驱动等离子体光催化?

Journal of Photocatalysis Pub Date : 2021-10-27 DOI: 10.2174/2665976x02666211027120324

L. Bach-Toledo, P. Peralta-Zamora, L. D. Prola

{"title":"Ag-TiO2 Nanocomposites: visible or solar light driven plasmonic photocatalysis?","authors":"L. Bach-Toledo, P. Peralta-Zamora, L. D. Prola","doi":"10.2174/2665976x02666211027120324","DOIUrl":"https://doi.org/10.2174/2665976x02666211027120324","url":null,"abstract":"\u0000\u0000The demand for photocatalytic processes assisted by solar radiation has stimulated the upgrading of established systems, as the semiconductor modification with noble metals.\u0000\u0000\u0000\u0000\u0000the synthesis, characterization, and photocatalytic activity evaluation of the Ag-TiO2, against sulfamethoxazole molecule, and investigate the significance of the plasmonic phenomenon in Visible (450 - 1000nm) and UV-Vis (315-800 nm) radiation.\u0000\u0000\u0000\u0000\u0000 Different nanocomposites Ag/TiO2 ratios were synthesized by the deposition of Ag nanoparticles on the TiO2 surface by in-situ photoreduction, and then calcinated at 400°C for 2 hr. The chemical-physical properties of the materials were examined by UV-Vis Diffuse Reflectance (UV-Vis DRS) Scanning Electronic Microscopy (SEM), Transmission Electronic Microscopy (TEM), X-Ray Energy Dispersive Spectroscopy (EDS). The experiments were conducted in a cooled photochemical reactor irradiated by halogen lamp (250W). The degradation of Sulfamethoxazole was monitored by HPLC-DAD.\u0000\u0000\u0000\u0000\u0000 Although the prepared photocatalysts show an intense plasmonic band centered at 500 nm, no photocatalytic activity was observed in the process assisted by artificial visible radiation ( ≥ 450 nm). In processes assisted by artificial UV-Vis radiation, the photolysis rate of the model compound (sulfamethoxazole) was higher than the photocatalytic rate, and in the absence of UV radiation, all the reactions were inhibited. The positive effect of the presence of silver nanoparticles onto the TiO2 surface was only evidenced in studies involving solar radiation.\u0000\u0000\u0000\u0000\u0000The results suggest the need for a balance between UV and Vis radiation to activate the nanocomposite and perform the sulfamethoxazole degradation.\u0000\u0000","PeriodicalId":246025,"journal":{"name":"Journal of Photocatalysis","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116137939","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}

引用次数: 0

Bibliometric analysis of the research on photo-electrocatalysis and its possible application to wastewater treatment 光电催化研究的文献计量分析及其在废水处理中的应用前景

Journal of Photocatalysis Pub Date : 2021-10-01 DOI: 10.2174/2665976x02666211001121237

S. Palmas, A. Vacca, M. Mascia, L. Mais

{"title":"Bibliometric analysis of the research on photo-electrocatalysis and its possible application to wastewater treatment","authors":"S. Palmas, A. Vacca, M. Mascia, L. Mais","doi":"10.2174/2665976x02666211001121237","DOIUrl":"https://doi.org/10.2174/2665976x02666211001121237","url":null,"abstract":"\u0000\u0000 Possible applications of photoelectrocatalysis in the field of environmentally sustainable processes have inspired an exponentially increasing number of papers in the last decades. Less frequently, bibliometric analyses are presented, which are especially useful when a considerable amount of data is involved: metadata can be viewed from micro to macro perspective and may suggest ideas for future research.\u0000\u0000\u0000\u0000\u0000The objective of this study is to derive information on the research trends and to individuate possible gaps in specific topics, as well information on the authors and their related countries and institutes, and to quantify possible cooperation patterns between them. \u0000\u0000\u0000\u0000\u0000 In addition to the classic data analyses immediately available on the database, such as the trend of the number of publications per year and the list of the most active authors or countries, the bibliometric analysis has been carried out using the VOSviewer software. Co-authorship and co-citation analyses have been performed, as well as co-occurrence of the keywords explicitly indicated by the authors. \u0000\u0000\u0000\u0000\u0000 Based on the publications in the SCOPUS database, the present work analysed the metadata relating to scientific articles published in the last two decades, dedicated to the research on photo-electrocatalytic processes and their possible application on wastewater treatment. Based on the list of the references present in the examined papers, the co-authorship analysis and the co-citation analysis also allowed the identification of the authors and the publications which have been most influential on the research on the examined topics. Indication has been obtained on the trend of the main topics investigated in time, as well as the current gaps in terms of content-wise and geographic cooperation.\u0000\u0000","PeriodicalId":246025,"journal":{"name":"Journal of Photocatalysis","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126783560","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}

引用次数: 0

Photocatalytic properties of TiO2 for the degradation of O3: Examined by environmental parameters TiO2降解O3的光催化性能:通过环境参数考察

Journal of Photocatalysis Pub Date : 2021-09-20 DOI: 10.2174/2665976x02666210920154707

Magnus Christoffer Skov, Steffen Enggaard Kristensen, T. Mikkelsen

{"title":"Photocatalytic properties of TiO2 for the degradation of O3: Examined by environmental parameters","authors":"Magnus Christoffer Skov, Steffen Enggaard Kristensen, T. Mikkelsen","doi":"10.2174/2665976x02666210920154707","DOIUrl":"https://doi.org/10.2174/2665976x02666210920154707","url":null,"abstract":"\u0000\u0000This paper describes how environmentally relevant parameters affect titanium dioxide's photocatalytic properties (TiO2) to decompose ozone (O3). \u0000\u0000\u0000\u0000Thus, experiments have been carried out in a box chamber with TiO2 coated roofing membrane samples to determine the significance of light intensity, temperature, initial O3 concentration, and relative humidity. Furthermore, an outdoor experiment has been conducted where the roofing membrane was subjected to natural sunlight. \u0000\u0000\u0000\u0000The results show a significant photocatalytic effect of TiO2. The half-life of the O3 decay curve is 5.8 min in near-ambient UV-light exposure compared with 7.1 min in dark conditions. Experiments conducted at higher light intensity show a more extensive degradation of O3, where the value of the reactive uptake coefficient increases from 0.044 to 0.051. Also, the measurements carried out under natural sunlight show a photocatalytic effect where the uptake coefficient value is 0.046. A larger photocatalytic effect is detected for the experiments conducted at 283 K and 303 K temperatures compared with experiments under standard conditions. \u0000\u0000\u0000\u0000Experiments carried out with a very high initial concentration of O3 show that 28.1 μg of O3 is decomposed than ambient conditions, where 2.3 μg is destroyed. This demonstrates that light intensity, temperature, ozone concentration, and relative humidity significantly impact TiO2's degradation of O3.\u0000","PeriodicalId":246025,"journal":{"name":"Journal of Photocatalysis","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122059389","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}

引用次数: 0

Degradation of the o-phenylphenol fungicide in water by unconventional CeO2-WO3 photocatalysts 非常规CeO2-WO3光催化剂降解水中邻苯酚杀菌剂

Journal of Photocatalysis Pub Date : 2021-08-16 DOI: 10.2174/2665976x02666210816113433

R. Fiorenza, Stefano Andrea Balsamo, S. Sciré

{"title":"Degradation of the o-phenylphenol fungicide in water by unconventional CeO2-WO3 photocatalysts","authors":"R. Fiorenza, Stefano Andrea Balsamo, S. Sciré","doi":"10.2174/2665976x02666210816113433","DOIUrl":"https://doi.org/10.2174/2665976x02666210816113433","url":null,"abstract":"\u0000\u0000 Water pollution due to emerging contaminants such as pesticides, pharmaceutics and/or plasticizers, is a serious environmental problem strictly connected to the safety of human and ecosystem life. For this reason, the development of high-performing (photo)catalysts for water purification is crucial.\u0000\u0000\u0000\u0000\u0000In recent years, the synergistic effects in Advanced Oxidation Processes (AOPs) can perform better strategies to remove recalcitrant contaminants from water. In this contest, the (photo)catalytic activity of CeO2-WO2materials for the degradation of the orto-phenylphenol fungicide comparing the photocatalytic, the Fenton and the photo-Fenton-like processes, has been examined.\u0000\u0000\u0000\u0000\u0000The samples were synthetized through deposition-precipitation mediated with the hexamethylenetetramine (HMTA) surfactant. The chemico-physical properties of the materials were examined by Raman, UV-Vis Diffuse Reflectance (Uv-vis DRS) and X-Ray photoelectron (XPS) spectroscopies, N2 adsorption-desorption measurements and transmission electron microscopy (TEM). The (photo)catalytic measurements were made through a home-made photoreactor irradiated by a solar lamp. The degradation of the fungicide was measured by UV-vis spectroscopy.\u0000\u0000\u0000\u0000\u0000 An efficient heterojunction was formed between the CeO2 and the WO2 oxides, which provided a good degradation percentage of the pesticide (65%) employing the solar photo-Fenton-like reaction that was the best performing process among the three investigated AOPs. The addition of WO3on CeO2 facilitated the ionic exchange between the Ce and the W ions, boosting the redox properties of cerium oxide.\u0000\u0000\u0000\u0000\u0000The strong interaction between CeO2 and WO3 and the peculiar properties of this unconventional composite pave the way to its use as a promising material for water depollution.\u0000\u0000","PeriodicalId":246025,"journal":{"name":"Journal of Photocatalysis","volume":"92 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120924708","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}

引用次数: 0

Research progress over Cu2O/n-type semiconductor composites in photocatalysis Cu2O/n型半导体复合材料光催化研究进展

Journal of Photocatalysis Pub Date : 2021-08-05 DOI: 10.2174/2665976x02666210805113814

Yonghui Zhang, Y. Shi, Shiyu Xie, Mingming Liu, Junli Chen, Feilong Gong

{"title":"Research progress over Cu2O/n-type semiconductor composites in photocatalysis","authors":"Yonghui Zhang, Y. Shi, Shiyu Xie, Mingming Liu, Junli Chen, Feilong Gong","doi":"10.2174/2665976x02666210805113814","DOIUrl":"https://doi.org/10.2174/2665976x02666210805113814","url":null,"abstract":"\u0000\u0000Photocatalysis is a feasible technology to solve energy shortage and environmental pollution by using solar energy. Semiconductor photocatalysts with low cost, high stability and environmental friendliness are demonstrated advantages for the production of solar fuel, CO2 reduction, and degradation of pollutants. Among them, Cu2O presents numerous potential for photocatalysis because of its narrow bandgap and high activity under visible light. However, the rapid recombination of photoinduced electron-hole pairs and the instability of Cu2O under light irradiation limit its photocatalytic performance. In order to solve the above issues, researchers prefer to incorporate Cu2O with n-type semiconductors to design p-n heterojunction composites, thus regulating the band structure, promoting the separation and transfer of electrons and holes, and accelerating the redox reaction onto the surface. In this manuscript, the preparation methods of Cu2O/n-type semiconductor composites such as hydrothermal method, electrodeposition method, and in situ method are concluded, the photocatalytic applications including CO2 reduction, hydrogen production, and degradation are presented, and the catalytic mechanism like Z-scheme, p-n heterojunction, etc. are discussed, respectively. This review also proposes that there are still challenges in broadening the photocatalytic application of Cu2O/n-type semiconductor composites.\u0000","PeriodicalId":246025,"journal":{"name":"Journal of Photocatalysis","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125502947","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}

引用次数: 0

CdS-Based Photocatalysts for Solar Water Splitting 基于cd的太阳能水分解光催化剂

Journal of Photocatalysis Pub Date : 2021-08-05 DOI: 10.2174/2665976x02666210805112724

Yimeng Cao, Chuhong Zhu, Taotao Wang, Daochuan Jiang, Sheng Ye

引用次数: 0

Artificial Photosynthesis for Photo(Electro)Catalytic Water Splitting 光(电)催化水分解的人工光合作用

Journal of Photocatalysis Pub Date : 2021-08-01 DOI: 10.2174/2665976x0203211123164546

Sheng Ye

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Meet the Editorial Board Member 与编辑委员会成员见面

Journal of Photocatalysis Pub Date : 2021-08-01 DOI: 10.2174/2665976x0203211123161947

S. Palmas

引用次数: 0