Pub Date : 2023-12-18DOI: 10.1186/s42834-023-00202-w
Natalia Herrera, Maria Teresa Florez, Fernando Echeverri
{"title":"Reduction of the toxin microcystin-LR with different types of sediments","authors":"Natalia Herrera, Maria Teresa Florez, Fernando Echeverri","doi":"10.1186/s42834-023-00202-w","DOIUrl":"https://doi.org/10.1186/s42834-023-00202-w","url":null,"abstract":"","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":"78 ","pages":"1-10"},"PeriodicalIF":4.9,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1186/s42834-023-00205-7
Jui-Te Chen, Wen-Che Hou, Tsair-Fuh Lin, Cary T. Chiou
{"title":"Correction: Labile graphitic monolayers as a partition phase for containment of organic chemicals by graphene-based nanomaterials","authors":"Jui-Te Chen, Wen-Che Hou, Tsair-Fuh Lin, Cary T. Chiou","doi":"10.1186/s42834-023-00205-7","DOIUrl":"https://doi.org/10.1186/s42834-023-00205-7","url":null,"abstract":"","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":"55 1","pages":""},"PeriodicalIF":4.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138622463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1186/s42834-023-00204-8
Delia Cusano, S. Coda, P. De Vita, S. Fabbrocino, Francesco Fusco, Daniele Lepore, Federico Nicodemo, Antonio Pizzolante, Rita Tufano, V. Allocca
{"title":"A comparison of methods for assessing groundwater vulnerability in karst aquifers: the case study of Terminio Mt. aquifer (Southern Italy)","authors":"Delia Cusano, S. Coda, P. De Vita, S. Fabbrocino, Francesco Fusco, Daniele Lepore, Federico Nicodemo, Antonio Pizzolante, Rita Tufano, V. Allocca","doi":"10.1186/s42834-023-00204-8","DOIUrl":"https://doi.org/10.1186/s42834-023-00204-8","url":null,"abstract":"","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":"107 38","pages":""},"PeriodicalIF":4.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138608569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1186/s42834-023-00200-y
Kamal Mohammed Jihad, M. R. Roknabadi, M. Mohammadi, E. Goharshadi
{"title":"Reduced graphene oxide/TiO2/NiFe2O4 nanocomposite as a stable photocatalyst and strong antibacterial agent","authors":"Kamal Mohammed Jihad, M. R. Roknabadi, M. Mohammadi, E. Goharshadi","doi":"10.1186/s42834-023-00200-y","DOIUrl":"https://doi.org/10.1186/s42834-023-00200-y","url":null,"abstract":"","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":"28 30","pages":""},"PeriodicalIF":4.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138624078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-13DOI: 10.1186/s42834-023-00198-3
Veronia S. Nazim, Ghada M. El-Sayed, Sawsan M. Amer, Ahmed H. Nadim
Abstract Metal doping is an effective method to tune the optical and chemical properties of nanoparticles. Herein, a comparative study was conducted to assess the effect of metal dopant (Mg, Cu and Sn) on ZnO nanoparticles for visible LED photocatalysis. The photocatalysts were synthesized via a facile co-precipitation method. Doped ZnO nanoparticles were employed for photodegradation of citalopram; a commonly used antidepressant drug. The structural, morphological and optical properties of the nanoparticles were analyzed using high resolution transmission electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller measurements and diffuse reflectance spectroscopy. A decrease in band gap energy was obtained for Mg (3.21 eV), Cu (3.15 eV) and Sn (3.05 eV) compared to undoped ZnO (3.34 eV). Results showed that the photocatalytic activity of ZnO nanoparticles towards citalopram degradation under visible light was enhanced by doping with Sn which showed superior photocatalytic performance compared to Cu. Whereas, Mg doped ZnO demonstrated the lowest photocatalytic activity. Full factorial design (2 4 ) was conducted to investigate the effect of dopant, pH, catalyst loading and initial citalopram concentration on the efficiency of the treatment process. The interaction between the metal dopant and pH had significant impact on photodegradation efficiency. At optimum conditions, 80% degradation of 25 µg mL −1 citalopram was obtained in 2 h using commercially available LED light using 0.5 mg mL −1 Sn doped ZnO. Kinetics of citalopram degradation was also investigated and was found to follow pseudo-first order kinetics. The optimized photocatalytic protocol was successfully applied for treatment of water samples obtained from production lines during the cleaning validation cycles of citalopram. Sn and Cu doped ZnO nanoparticles had great sustainability for wastewater treatment as it kept its catalytic behavior up to three cycles without significant decrease in photocatalytic activity. The integration of such an approach into the currently employed cleaning validation protocols would offer an economical advantage for pharmaceutical wastewater treatment. Graphical Abstract
{"title":"Optimization of metal dopant effect on ZnO nanoparticles for enhanced visible LED photocatalytic degradation of citalopram: comparative study and application to pharmaceutical cleaning validation","authors":"Veronia S. Nazim, Ghada M. El-Sayed, Sawsan M. Amer, Ahmed H. Nadim","doi":"10.1186/s42834-023-00198-3","DOIUrl":"https://doi.org/10.1186/s42834-023-00198-3","url":null,"abstract":"Abstract Metal doping is an effective method to tune the optical and chemical properties of nanoparticles. Herein, a comparative study was conducted to assess the effect of metal dopant (Mg, Cu and Sn) on ZnO nanoparticles for visible LED photocatalysis. The photocatalysts were synthesized via a facile co-precipitation method. Doped ZnO nanoparticles were employed for photodegradation of citalopram; a commonly used antidepressant drug. The structural, morphological and optical properties of the nanoparticles were analyzed using high resolution transmission electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller measurements and diffuse reflectance spectroscopy. A decrease in band gap energy was obtained for Mg (3.21 eV), Cu (3.15 eV) and Sn (3.05 eV) compared to undoped ZnO (3.34 eV). Results showed that the photocatalytic activity of ZnO nanoparticles towards citalopram degradation under visible light was enhanced by doping with Sn which showed superior photocatalytic performance compared to Cu. Whereas, Mg doped ZnO demonstrated the lowest photocatalytic activity. Full factorial design (2 4 ) was conducted to investigate the effect of dopant, pH, catalyst loading and initial citalopram concentration on the efficiency of the treatment process. The interaction between the metal dopant and pH had significant impact on photodegradation efficiency. At optimum conditions, 80% degradation of 25 µg mL −1 citalopram was obtained in 2 h using commercially available LED light using 0.5 mg mL −1 Sn doped ZnO. Kinetics of citalopram degradation was also investigated and was found to follow pseudo-first order kinetics. The optimized photocatalytic protocol was successfully applied for treatment of water samples obtained from production lines during the cleaning validation cycles of citalopram. Sn and Cu doped ZnO nanoparticles had great sustainability for wastewater treatment as it kept its catalytic behavior up to three cycles without significant decrease in photocatalytic activity. The integration of such an approach into the currently employed cleaning validation protocols would offer an economical advantage for pharmaceutical wastewater treatment. Graphical Abstract","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136348408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-10DOI: 10.1186/s42834-023-00201-x
Kodami Badza, Y. M. Soro, Marie Sawadogo
Abstract This work aims to determine the Energy Payback Time (EPBT) of a 33.7 MWp grid-connected photovoltaic (PV) power plant in Zagtouli (Burkina Faso) and assess its environmental impacts using the life cycle assessment tool according to ISO 14040 and 14044 standards. A “cradle to grave” approach was used, considering 1 kWh of electricity produced and injected into the national grid over 25 years as a functional unit. In addition to the baseline scenario, the other simulated scenarios combining three variables, module technology (mono c-Si, poly c-Si, and CdTe), type of mounting structure (aluminum and steel), and end-of-life treatments (landfill and recycling) were considered. SimaPro 9.4 software and the ReCiPe 2016 Midpoint (H) evaluation method were used for the calculations considering four environmental indicators. A sensitivity analysis of the change in the electricity mix was also performed. Results showed that the EPBT of the scenarios varies between 1.47 and 1.95 years, with the shortest and longest corresponding to scenarios 4 (CdTe modules, steel mounting structure, and recycling as end-of-life treatment) and scenario 3 (mono c-Si modules, aluminum mounting structure, and recycling as end-of-life treatment), respectively. All the EPBT scenarios studied can be considered acceptable given the long lifetime of PV systems (25 years). The following environmental impact results were obtained: climate change 37–48 CO 2 -eq kWh -1 , freshwater ecotoxicity 4–11 g 1,4-DCB kWh -1 , mineral resource scarcity 0.4–0.7 g Cu-eq kWh -1 and 11–13 g oil-eq kWh -1 for fossil resource scarcity. Scenario 3 (mono c-Si modules, aluminum mounting structure, and recycling as end-of-life treatment) dominates all environmental indicators studied except freshwater ecotoxicity, which is dominated by scenario 4 (CdTe modules, steel mounting structure, and recycling as end-of-life treatment). The sensitivity analysis showed that the change in the electricity mix could reduce around 30% the EPBT, climate change, and fossil resource scarcity. Considering the environmental indicators studied, using CdTe modules manufactured in a country with a less carbon-intensive electricity mix, using galvanized steel as the mounting structure, and completely recycling components at the end of their lifetime is the most environmentally friendly scenario. However, particular attention needs to be paid to the land occupation that this plant could generate.
本研究旨在确定布基纳法索Zagtouli 33.7 MWp并网光伏(PV)电站的能源回收期(EPBT)，并根据ISO 14040和14044标准使用生命周期评估工具评估其环境影响。采用了“从摇篮到坟墓”的方法，考虑到在25年内生产并注入国家电网的1千瓦时电力作为一个功能单位。除了基线场景外，还考虑了其他模拟场景，包括三个变量，模块技术(单晶硅、聚晶硅和碲化镉)、安装结构类型(铝和钢)以及寿命终止处理(垃圾填埋和回收)。采用SimaPro 9.4软件和ReCiPe 2016 Midpoint (H)评价方法，考虑4个环境指标进行计算。还进行了对电力结构变化的敏感性分析。结果表明:各情景的EPBT变化在1.47 ~ 1.95年之间，最短和最长分别对应于情景4 (CdTe模块、钢安装结构、报废处理)和情景3(单碳硅模块、铝安装结构、报废处理)。考虑到光伏系统的长寿命(25年)，所研究的所有EPBT方案都可以被认为是可接受的。得到的环境影响结果如下:气候变化37-48 CO 2 -eq kWh -1，淡水生态毒性4-11 g 1,4- dcb kWh -1，矿产资源稀缺性0.4-0.7 g Cu-eq kWh -1，化石资源稀缺性11-13 g oil-eq kWh -1。除淡水生态毒性外，情景3(单碳硅模块，铝安装结构，回收利用作为寿命终止处理)主导了所有研究的环境指标，而情景4(碲化镉模块，钢安装结构，回收利用作为寿命终止处理)主导了淡水生态毒性。敏感性分析表明，电力结构的变化可以减少约30%的EPBT，气候变化和化石资源稀缺。考虑到所研究的环境指标，使用在碳密集型电力结构较低的国家生产的碲化镉组件，使用镀锌钢作为安装结构，并在其使用寿命结束时完全回收组件是最环保的方案。但是，需要特别注意这种植物可能造成的土地占用。
{"title":"Life cycle assessment of a 33.7 MW solar photovoltaic power plant in the context of a developing country","authors":"Kodami Badza, Y. M. Soro, Marie Sawadogo","doi":"10.1186/s42834-023-00201-x","DOIUrl":"https://doi.org/10.1186/s42834-023-00201-x","url":null,"abstract":"Abstract This work aims to determine the Energy Payback Time (EPBT) of a 33.7 MWp grid-connected photovoltaic (PV) power plant in Zagtouli (Burkina Faso) and assess its environmental impacts using the life cycle assessment tool according to ISO 14040 and 14044 standards. A “cradle to grave” approach was used, considering 1 kWh of electricity produced and injected into the national grid over 25 years as a functional unit. In addition to the baseline scenario, the other simulated scenarios combining three variables, module technology (mono c-Si, poly c-Si, and CdTe), type of mounting structure (aluminum and steel), and end-of-life treatments (landfill and recycling) were considered. SimaPro 9.4 software and the ReCiPe 2016 Midpoint (H) evaluation method were used for the calculations considering four environmental indicators. A sensitivity analysis of the change in the electricity mix was also performed. Results showed that the EPBT of the scenarios varies between 1.47 and 1.95 years, with the shortest and longest corresponding to scenarios 4 (CdTe modules, steel mounting structure, and recycling as end-of-life treatment) and scenario 3 (mono c-Si modules, aluminum mounting structure, and recycling as end-of-life treatment), respectively. All the EPBT scenarios studied can be considered acceptable given the long lifetime of PV systems (25 years). The following environmental impact results were obtained: climate change 37–48 CO 2 -eq kWh -1 , freshwater ecotoxicity 4–11 g 1,4-DCB kWh -1 , mineral resource scarcity 0.4–0.7 g Cu-eq kWh -1 and 11–13 g oil-eq kWh -1 for fossil resource scarcity. Scenario 3 (mono c-Si modules, aluminum mounting structure, and recycling as end-of-life treatment) dominates all environmental indicators studied except freshwater ecotoxicity, which is dominated by scenario 4 (CdTe modules, steel mounting structure, and recycling as end-of-life treatment). The sensitivity analysis showed that the change in the electricity mix could reduce around 30% the EPBT, climate change, and fossil resource scarcity. Considering the environmental indicators studied, using CdTe modules manufactured in a country with a less carbon-intensive electricity mix, using galvanized steel as the mounting structure, and completely recycling components at the end of their lifetime is the most environmentally friendly scenario. However, particular attention needs to be paid to the land occupation that this plant could generate.","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":"2 23","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135141615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-10DOI: 10.1186/s42834-023-00197-4
Jui-Te Chen, Wen-Che Hou, Tsair-Fuh Lin, Cary T. Chiou
Abstract Graphene-based nanomaterials (GBNMs) (e.g., graphene oxides and carbon nanotubes) display superior electronic and thermal conductivities and varying abilities to contain organic substances. This study sheds light to the idea that GBNMs behave as a dual sorbent, rather than a sole adsorbent, to extract nonionic organic solutes from water by both (competitive) adsorption and (noncompetitive) partition because of the solute interactions with various GBNM nanostructures formed by atomically-thin graphitic monolayers. Essential solute-sorption data with three model GBNMs from this research and similar data from the literature lead to a coherent view that labile graphitic monolayers in GBNMs undergo a liquid-like motion at room temperature to retain nonionic organic solutes by partition while structurally rigid graphitic clusters behave as adsorbents. Because the partition is noncompetitive, the GBNMs possessing high levels of labile graphene layers, as reflected by high BET surface areas, are capable of sequestering vastly higher levels of multiple organic solutes (especially, those of liquids) than conventional adsorbents, e.g., activated carbon (AC). Moreover, the postulated dual functionality of GBNMs makes sense of many otherwise puzzling phenomena, such as the highly concentration-dependent solute competitive effect with certain GBNMs and highly variable “adsorbed capacities” per unit surface area for different organic solutes with a GBNM versus those by a conventional adsorbent (e.g., graphite or AC). Graphical Abstract
{"title":"Labile graphitic monolayers as a partition phase for containment of organic chemicals by graphene-based nanomaterials","authors":"Jui-Te Chen, Wen-Che Hou, Tsair-Fuh Lin, Cary T. Chiou","doi":"10.1186/s42834-023-00197-4","DOIUrl":"https://doi.org/10.1186/s42834-023-00197-4","url":null,"abstract":"Abstract Graphene-based nanomaterials (GBNMs) (e.g., graphene oxides and carbon nanotubes) display superior electronic and thermal conductivities and varying abilities to contain organic substances. This study sheds light to the idea that GBNMs behave as a dual sorbent, rather than a sole adsorbent, to extract nonionic organic solutes from water by both (competitive) adsorption and (noncompetitive) partition because of the solute interactions with various GBNM nanostructures formed by atomically-thin graphitic monolayers. Essential solute-sorption data with three model GBNMs from this research and similar data from the literature lead to a coherent view that labile graphitic monolayers in GBNMs undergo a liquid-like motion at room temperature to retain nonionic organic solutes by partition while structurally rigid graphitic clusters behave as adsorbents. Because the partition is noncompetitive, the GBNMs possessing high levels of labile graphene layers, as reflected by high BET surface areas, are capable of sequestering vastly higher levels of multiple organic solutes (especially, those of liquids) than conventional adsorbents, e.g., activated carbon (AC). Moreover, the postulated dual functionality of GBNMs makes sense of many otherwise puzzling phenomena, such as the highly concentration-dependent solute competitive effect with certain GBNMs and highly variable “adsorbed capacities” per unit surface area for different organic solutes with a GBNM versus those by a conventional adsorbent (e.g., graphite or AC). Graphical Abstract","PeriodicalId":22130,"journal":{"name":"Sustainable Environment Research","volume":"96 25","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-09DOI: 10.1186/s42834-023-00199-2
Giovanina-Iuliana Lupu, Cristina Orbeci, Constantin Bobirică, Liliana Bobirică, Elena Sorana Lazăr, Jeanina Pandele-Cusu, Marian Nicolae Verziu, Cristian Pîrvu, Roberta-Geanina Irodia
Abstract The objective of this work was to develop a novel photocatalytic membrane for the photocatalytic degradation of azithromycin formulation from aqueous solutions which, in addition to a high photocatalytic activity, should have a good mechanical and physico-chemical stability over time. Thus, the Nb-TiO 2 and Nb-Fe-TiO 2 photocatalysts were prepared by the solution combustion synthesis method, and then they were manually embedded in a fiberglass – rubberized silicone support. The mineralogical, morphological, and structural characterization of the obtained materials showed that both niobium and iron replace titanium in the titanium dioxide network, thus confirming the synthesis of new photocatalysts. The results of the photocatalytic oxidation tests showed a good photocatalytic activity of the developed photocatalytic membranes (degradation efficiency of up to 70% in the first 15 min of irradiation), this being on the one hand attributed to the increase of the specific surface of the photocatalyst by introducing niobium into the photocatalyst structure, and on the other hand due to the triggering of the Fenton photo oxidation mechanism due to the presence of trivalent iron in the photocatalyst structure. Also, the results indicated an excellent mechanical and physico-chemical resistance of the photocatalytic membranes, they are being practically inert to the harsh conditions in the photocatalytic reactor.
摘要:本研究的目的是开发一种新型光催化膜，用于从水溶液中光催化降解阿奇霉素制剂，该膜除了具有高光催化活性外，还应具有良好的机械和物理化学稳定性。为此，采用溶液燃烧合成的方法制备了nb - tio2和nb - fe - tio2光催化剂，然后将其人工嵌入玻璃纤维-橡胶硅胶支架中。所得材料的矿物学、形态和结构表征表明，铌和铁在二氧化钛网络中都取代了钛，从而证实了新型光催化剂的合成。光催化氧化试验结果表明，所研制的光催化膜具有良好的光催化活性(在照射前15分钟降解效率高达70%)，这一方面是由于在光催化剂结构中引入铌增加了光催化剂的比表面;另一方面由于光催化剂结构中三价铁的存在触发了Fenton光氧化机制。结果还表明，该光催化膜具有优异的机械和物理化学抗性，对光催化反应器中的恶劣条件几乎是惰性的。
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