Dario Balaban, Jelena Lubura Stošić, Oskar Bera, Predrag Kojić
Among various waste-to-energy technologies, gasification is one of the most promising, because of high efficiency, feedstock flexibility, and carbon capture potential. This case study is focused on comprehensive analysis of integrated gasification combined cycle-based plant with refuse-derived fuel (RDF) as feedstock and carbon capture. As there are hardly any studies focused on simulation of waste gasification with carbon capture, most of which are lacking important process specifics, this study addresses existing research gap. Process flowsheets are developed in detail according to literature data for various process configurations and simulated in AspenPlus software, while obtained results on material and energy balance were used for estimation of plant efficiency and performance indicators. Waste generation data in Novi Sad, Serbia, were used for determination of RDF flowrate. Configurations include different syngas cleaning pathways, final products (power, heating, and hydrogen) and co-gasification with coal. Cogeneration increases overall plant efficiency from 27%–36% (power production only) to 63%–76%. High net hydrogen efficiencies, around 58%, compensate lower power and thermal energy production in hydrogen-based configurations. Overall, co-gasification produces better results due to higher feedstock heating value. Obtained results will be used in further research for environmental and economic evaluation to provide multi-level assessment of proposed processes.
{"title":"Performance analysis of refuse-derived fuel gasification plant with carbon capture and storage for power, heating, and hydrogen production","authors":"Dario Balaban, Jelena Lubura Stošić, Oskar Bera, Predrag Kojić","doi":"10.1002/ep.14472","DOIUrl":"https://doi.org/10.1002/ep.14472","url":null,"abstract":"<p>Among various waste-to-energy technologies, gasification is one of the most promising, because of high efficiency, feedstock flexibility, and carbon capture potential. This case study is focused on comprehensive analysis of integrated gasification combined cycle-based plant with refuse-derived fuel (RDF) as feedstock and carbon capture. As there are hardly any studies focused on simulation of waste gasification with carbon capture, most of which are lacking important process specifics, this study addresses existing research gap. Process flowsheets are developed in detail according to literature data for various process configurations and simulated in AspenPlus software, while obtained results on material and energy balance were used for estimation of plant efficiency and performance indicators. Waste generation data in Novi Sad, Serbia, were used for determination of RDF flowrate. Configurations include different syngas cleaning pathways, final products (power, heating, and hydrogen) and co-gasification with coal. Cogeneration increases overall plant efficiency from 27%–36% (power production only) to 63%–76%. High net hydrogen efficiencies, around 58%, compensate lower power and thermal energy production in hydrogen-based configurations. Overall, co-gasification produces better results due to higher feedstock heating value. Obtained results will be used in further research for environmental and economic evaluation to provide multi-level assessment of proposed processes.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 6","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142685274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Yassmin Touhami, Ridha Boudhiaf, Abd Elnaby Kabeel, Abdelkrim Khelifa, Mohammed El Hadi Attia, Moataz M. Abdel-Aziz, Noureddine Latrache, Abederrahmane Aissa, Zied Driss
The efficiency of solar air collectors, which are intended to convert solar energy into thermal energy, is the subject of numerous studies that aim to assess and improve it. Solutions for sustainable energy heavily rely on these systems. Making the right choice regarding the best method for absorbing solar radiation and reducing heat losses is what will ultimately lead to their improved performance. In this work, wavy and corrugated absorbers were suggested inside a solar air collector. The aim of this article is to study experimentally the thermal performance of the solar air collector when using wavy shape of absorber and corrugated shape of absorber instead of the flat shape of absorber under the same weather conditions of Sfax region central-eastern of Tunisia. The suggested shapes of absorber augmented sun exposure and heating area. The results obtained from this experimental study show that switching from a flat plate absorber to both wavy and corrugated absorbers resulting significant performance gains. The absorber with waves showed a significant improvement in daily thermal efficiency of 22.89%, and the absorber with corrugations showed an even greater improvement of 40.56%. Comparable patterns were noted in daily exergy efficiency, where the corrugated absorber demonstrated an astounding 44.83% increase and the wavy absorber provided a 23.24% improvement. Notably, when total cost savings and monthly CO2 reduction were taken into account, the corrugated absorber turned out to be the best option. These findings highlight the importance of absorber form in optimizing thermal and energy efficiency, which may have positive effects on the economy and environment.
{"title":"Effect of absorber shape on energy, exergy efficiency and enviro-economic analysis of solar air collector: An experimental study","authors":"Yassmin Touhami, Ridha Boudhiaf, Abd Elnaby Kabeel, Abdelkrim Khelifa, Mohammed El Hadi Attia, Moataz M. Abdel-Aziz, Noureddine Latrache, Abederrahmane Aissa, Zied Driss","doi":"10.1002/ep.14481","DOIUrl":"https://doi.org/10.1002/ep.14481","url":null,"abstract":"<p>The efficiency of solar air collectors, which are intended to convert solar energy into thermal energy, is the subject of numerous studies that aim to assess and improve it. Solutions for sustainable energy heavily rely on these systems. Making the right choice regarding the best method for absorbing solar radiation and reducing heat losses is what will ultimately lead to their improved performance. In this work, wavy and corrugated absorbers were suggested inside a solar air collector. The aim of this article is to study experimentally the thermal performance of the solar air collector when using wavy shape of absorber and corrugated shape of absorber instead of the flat shape of absorber under the same weather conditions of Sfax region central-eastern of Tunisia. The suggested shapes of absorber augmented sun exposure and heating area. The results obtained from this experimental study show that switching from a flat plate absorber to both wavy and corrugated absorbers resulting significant performance gains. The absorber with waves showed a significant improvement in daily thermal efficiency of 22.89%, and the absorber with corrugations showed an even greater improvement of 40.56%. Comparable patterns were noted in daily exergy efficiency, where the corrugated absorber demonstrated an astounding 44.83% increase and the wavy absorber provided a 23.24% improvement. Notably, when total cost savings and monthly CO<sub>2</sub> reduction were taken into account, the corrugated absorber turned out to be the best option. These findings highlight the importance of absorber form in optimizing thermal and energy efficiency, which may have positive effects on the economy and environment.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 6","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142685338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Renata Dobrucka, Mikołaj Urbaniak, Wojciech Kozak, Marcin Szymański
In this work, films based on three different starches have been developed and modified by adding silver nanoparticles. We examined the films in terms of their mechanical properties, barrier properties and environmental toxicity to plants and invertebrates. For the toxicity studies, we used the following seeds: Berny rapeseed, Brassica napus; Salvia hispanica—chia, Salvia hispanica; and Karo narrowleaf lupine, Lupinus angustifolius. The invertebrates used for toxicity studies were Daphnia pulex, Tubifex tubifex, Chaoborus sp. (larva), Chironomus aprilinus, and Artemia sp. The tests showed that KD, TD, and ZD films were the most phytotoxic, which was confirmed by the percentages of germination and growth inhibition calculated for all test plants. K2D, D2T, and Z2D films exhibited considerable toxicity to lupine and chia. The conducted biotoxicity tests concerning the modified films and their effect on the selected invertebrates showed that Daphnia pulex and Artemia were highly sensitive to the tested factors. Only Chaoborus sp. (larva) exhibited total resistance to the tested films, which did not cause death of the organism in any case. Biotests on invertebrates and plants developed and used in this research can be successfully used to determine the toxicity of other substances.
{"title":"Innovative method of environmental safety research of starch-based films with silver nanoparticles","authors":"Renata Dobrucka, Mikołaj Urbaniak, Wojciech Kozak, Marcin Szymański","doi":"10.1002/ep.14480","DOIUrl":"https://doi.org/10.1002/ep.14480","url":null,"abstract":"<p>In this work, films based on three different starches have been developed and modified by adding silver nanoparticles. We examined the films in terms of their mechanical properties, barrier properties and environmental toxicity to plants and invertebrates. For the toxicity studies, we used the following seeds: Berny rapeseed, <i>Brassica napus</i>; Salvia hispanica—chia, <i>Salvia hispanica</i>; and Karo narrowleaf lupine, <i>Lupinus angustifolius.</i> The invertebrates used for toxicity studies were <i>Daphnia pulex</i>, <i>Tubifex tubifex</i>, <i>Chaoborus</i> sp. (larva), <i>Chironomus aprilinus</i>, and <i>Artemia</i> sp. The tests showed that KD, TD, and ZD films were the most phytotoxic, which was confirmed by the percentages of germination and growth inhibition calculated for all test plants. K2D, D2T, and Z2D films exhibited considerable toxicity to lupine and chia. The conducted biotoxicity tests concerning the modified films and their effect on the selected invertebrates showed that <i>Daphnia pulex</i> and Artemia were highly sensitive to the tested factors. Only <i>Chaoborus</i> sp. (larva) exhibited total resistance to the tested films, which did not cause death of the organism in any case. Biotests on invertebrates and plants developed and used in this research can be successfully used to determine the toxicity of other substances.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 6","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142692144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Mohamed A. Zayed, Soha A. Abdel-Gawad, Hossam M. Abdel-Aziz
Zero-valent copper nanoparticles (CuNPs) were beneficially green synthesized via Ficus Benjamina leaves. Applying scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR), Ficus Benjamina nano zero-valent copper (FB-nZVCu), an innovative adsorbent, was examined. The obtained zero-valent CuNPs have a size range of 16–18 nm. The removal of D-yellow 119 dye from textile wastewater was tested using this novel adsorbent. Many operating parameters were examined and tested to control the adsorbent's maximum removal efficiency. These variables included dye concentration, stirring rate, time, pH, and adsorbent dosage. Different adsorption mechanisms have been tested, and the Langmuir isotherm (qmax = 21.83 mg g−1) and (R2 = 0.9993) represent adequate for the adsorption process. The FB-nZVCu green adsorbent is a promising material for eliminating D-yellow 119 from simulated and real samples, according to the data obtained and the fruitful analysis. The impact of different operating factors was examined using IBM SPSS Statistics software. They were shown to be responsible for approximately 94% of the factors influencing the removal process.
{"title":"Green synthesis of zero-valent copper nanoparticles for removal of D-yellow 119 textile dye from aqueous medium","authors":"Mohamed A. Zayed, Soha A. Abdel-Gawad, Hossam M. Abdel-Aziz","doi":"10.1002/ep.14473","DOIUrl":"https://doi.org/10.1002/ep.14473","url":null,"abstract":"<p>Zero-valent copper nanoparticles (CuNPs) were beneficially green synthesized via Ficus Benjamina leaves. Applying scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR), Ficus Benjamina nano zero-valent copper (FB-nZVCu), an innovative adsorbent, was examined. The obtained zero-valent CuNPs have a size range of 16–18 nm. The removal of D-yellow 119 dye from textile wastewater was tested using this novel adsorbent. Many operating parameters were examined and tested to control the adsorbent's maximum removal efficiency. These variables included dye concentration, stirring rate, time, pH, and adsorbent dosage. Different adsorption mechanisms have been tested, and the Langmuir isotherm (<i>q</i><sub>max</sub> = 21.83 mg g<sup>−1</sup>) and (<i>R</i><sup>2</sup> = 0.9993) represent adequate for the adsorption process. The FB-nZVCu green adsorbent is a promising material for eliminating D-yellow 119 from simulated and real samples, according to the data obtained and the fruitful analysis. The impact of different operating factors was examined using IBM SPSS Statistics software. They were shown to be responsible for approximately 94% of the factors influencing the removal process.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 6","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142692146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Italo Emmanoel Mesquita Oliveira de Moura, Elaine Aparecida da Silva
Disinfectants are essential products for reducing health risks, but they also have significant environmental impacts. This study assessed the Eco-efficiency of disinfectants based on the NBR ISO 14045:2014. Primary data were collected from Brazilian producers, while secondary data were obtained from patents and the Ecoinvent database. The system boundaries encompassed cradle-to-consumer use. The selling price was adopted as the product system value indicator (economic analysis). Raw materials production had the greatest impact on the environmental performance of disinfectants A (Antibacterial, surfactant and preservative) and C (Antibacterial, surfactant and opacifier). Disinfectant B, in addition to raw materials production (Antibacterial, opacifier and surfactant), also experienced significant impacts from consumer transport. These critical processes represent more than 60% of the overall impacts in both categories. The Eco-efficiency matrix (profile) related environmental and economic indicators. All disinfectants occupied quadrants three or four, indicating high impact on the environmental categories. Disinfectant C had the highest Eco-efficiency while disinfectant B had the lowest, mainly due to its product system value. Sensitivity analysis indicated environmentally viable changes in the products' composition, such as replacing the antibacterial, surfactant, preservative, and opacifier. Energy and water consumption did not significantly impact the assessed products.
消毒剂是降低健康风险的基本产品,但对环境也有重大影响。本研究根据 NBR ISO 14045:2014 评估了消毒剂的生态效益。原始数据收集自巴西生产商,二手数据则来自专利和 Ecoinvent 数据库。系统边界包括从摇篮到消费者的使用过程。采用销售价格作为产品系统价值指标(经济分析)。原材料生产对消毒剂 A(抗菌剂、表面活性剂和防腐剂)和 C(抗菌剂、表面活性剂和不透明剂)的环境绩效影响最大。消毒剂 B 除了原材料生产(抗菌剂、不透明剂和表面活性剂)外,消费者运输也对其产生了重大影响。这些关键工序占两类产品总体影响的 60% 以上。生态效益矩阵(概况)涉及环境和经济指标。所有消毒剂都占据了第三或第四象限,表明对环境类别的影响较大。消毒剂 C 的生态效益最高,而消毒剂 B 的生态效益最低,主要是由于其产品系统价值。敏感性分析表明,改变产品成分对环境是可行的,例如更换抗菌剂、表面活性剂、防腐剂和不透明剂。能耗和水耗对所评估的产品没有重大影响。
{"title":"Eco-efficiency improvement strategies for disinfectants","authors":"Italo Emmanoel Mesquita Oliveira de Moura, Elaine Aparecida da Silva","doi":"10.1002/ep.14478","DOIUrl":"10.1002/ep.14478","url":null,"abstract":"<p>Disinfectants are essential products for reducing health risks, but they also have significant environmental impacts. This study assessed the Eco-efficiency of disinfectants based on the NBR ISO 14045:2014. Primary data were collected from Brazilian producers, while secondary data were obtained from patents and the Ecoinvent database. The system boundaries encompassed cradle-to-consumer use. The selling price was adopted as the product system value indicator (economic analysis). Raw materials production had the greatest impact on the environmental performance of disinfectants A (Antibacterial, surfactant and preservative) and C (Antibacterial, surfactant and opacifier). Disinfectant B, in addition to raw materials production (Antibacterial, opacifier and surfactant), also experienced significant impacts from consumer transport. These critical processes represent more than 60% of the overall impacts in both categories. The Eco-efficiency matrix (profile) related environmental and economic indicators. All disinfectants occupied quadrants three or four, indicating high impact on the environmental categories. Disinfectant C had the highest Eco-efficiency while disinfectant B had the lowest, mainly due to its product system value. Sensitivity analysis indicated environmentally viable changes in the products' composition, such as replacing the antibacterial, surfactant, preservative, and opacifier. Energy and water consumption did not significantly impact the assessed products.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 6","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
{"title":"Issue Information - Info for Authors","authors":"","doi":"10.1002/ep.14424","DOIUrl":"10.1002/ep.14424","url":null,"abstract":"","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ep.14424","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Issue Information - Cover and Table of Contents","authors":"","doi":"10.1002/ep.14181","DOIUrl":"10.1002/ep.14181","url":null,"abstract":"","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ep.14181","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The present study accentuate the noteworthiness of ongoing research in evolving sustainable sugarcane juice evaporation technologies to help the non-centrifugal sugar (NCS) industry. Concentrated sugarcane juice (CSJ) is the raw material for the production of variety of value added products. A stepped solar still (SSS) could be one of the inexpensive solutions to evaporate water from sugarcane juice. In this study, a SSS having internal and external reflectors (SSS-IR-ER) is tested at 25 mL/min of sugarcane juice for obtaining CSJ. The thermo-enviro-economic performance of SSS-IR-ER unit is compared with SSS and SSS-IR (SSS having internal reflectors) units. The final brix content (oB) of the CSJ obtained from SSS-IR-ER is found to be maximum (20.7 oB) which is respectively, 16.90% and 7.25% higher than those of SSS and SSS-IR units. The total distillate output (condensate) and heat transfer coefficients show similar trends as that of brix values, which proves thermal dominance of SSS-IR-ER unit. For SSS-IR-ER, the convective and evaporative heat transfer coefficients were found to be maximum as 3.89 and 73.78 W/m2°C, respectively. The average values of energy and exergy efficiencies for SSS-IR-ER were, respectively, evaluated as 55.25% and 2.7% which were also observed maximum among the tested units. SSS-IR-ER also found to command in environmental and economic aspects with maximum values of total productive cost ($0.218), CO2 mitigation (14.93 tonnes) and carbon credit earned ($186.73). It is inferred that SSS-IR-ER is more economical and thermally efficient than SSS and SSS-IR units.
{"title":"Experimental study on stepped solar still equipped with reflectors for the concentration of sugarcane juice","authors":"Rahul Grewal, Mahesh Kumar, Ashok Chaudhary, Pankaj Yadav","doi":"10.1002/ep.14477","DOIUrl":"10.1002/ep.14477","url":null,"abstract":"<p>The present study accentuate the noteworthiness of ongoing research in evolving sustainable sugarcane juice evaporation technologies to help the non-centrifugal sugar (NCS) industry. Concentrated sugarcane juice (CSJ) is the raw material for the production of variety of value added products. A stepped solar still (SSS) could be one of the inexpensive solutions to evaporate water from sugarcane juice. In this study, a SSS having internal and external reflectors (SSS-IR-ER) is tested at 25 mL/min of sugarcane juice for obtaining CSJ. The thermo-enviro-economic performance of SSS-IR-ER unit is compared with SSS and SSS-IR (SSS having internal reflectors) units. The final brix content (<sup>o</sup>B) of the CSJ obtained from SSS-IR-ER is found to be maximum (20.7 <sup>o</sup>B) which is respectively, 16.90% and 7.25% higher than those of SSS and SSS-IR units. The total distillate output (condensate) and heat transfer coefficients show similar trends as that of brix values, which proves thermal dominance of SSS-IR-ER unit. For SSS-IR-ER, the convective and evaporative heat transfer coefficients were found to be maximum as 3.89 and 73.78 W/m<sup>2</sup>°C, respectively. The average values of energy and exergy efficiencies for SSS-IR-ER were, respectively, evaluated as 55.25% and 2.7% which were also observed maximum among the tested units. SSS-IR-ER also found to command in environmental and economic aspects with maximum values of total productive cost ($0.218), CO<sub>2</sub> mitigation (14.93 tonnes) and carbon credit earned ($186.73). It is inferred that SSS-IR-ER is more economical and thermally efficient than SSS and SSS-IR units.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 6","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
The application of a novel composite MIL88A(Fe)/TiO2 for phenol removal in a new hexagonal photoreactor design was investigated. The unique hexagonal shape of the reactor increases the surface area available for irradiation, leading to more efficient removal of contaminants. The composite was characterized using X ray diffraction (XRD), Fourier transform-infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) images to determine its properties. Photocatalyst dosage, reaction time, phenol concentration, pH, and mL H2O2/L PW (phenol wastewater) were chosen as effective parameters on the process. To plan an experiment and maximize phenol removal, the response surface methodology (RSM) was applied. Ideal conditions for optimum efficiency (95.96%) include initial phenol concentration of 58 mg/L, pH of 7.51, reaction time of 68.61 min, mL H2O2/L PW of 0.18, and catalyst dosage of 0.4 g/L PW. Trapping experiments prove that ˙O2 and ˙OH produced in Fenton and photocatalytic processes are the predominant active radicals in this process. The kinetics was fitted with the first-order, second-order, n-order, and Langmuir–Hinshelwood models using nonlinear least squares techniques. The n-order model with n = 0.54 was found to be the most suitable model (R2 0.998), with a model constant of k = 0.11 (mol0.46/L0.46.s).
{"title":"A study on the application of a composite MIL88A(Fe)/TiO2 in a hexagonal photoreactor for phenol removal: Response surface methodology and kinetic modeling","authors":"Mehrazin Nikseresht, Davood Iranshahi, Alireza Badiei","doi":"10.1002/ep.14462","DOIUrl":"10.1002/ep.14462","url":null,"abstract":"<p>The application of a novel composite MIL88A(Fe)/TiO<sub>2</sub> for phenol removal in a new hexagonal photoreactor design was investigated. The unique hexagonal shape of the reactor increases the surface area available for irradiation, leading to more efficient removal of contaminants. The composite was characterized using X ray diffraction (XRD), Fourier transform-infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) images to determine its properties. Photocatalyst dosage, reaction time, phenol concentration, pH, and mL H<sub>2</sub>O<sub>2</sub>/L PW (phenol wastewater) were chosen as effective parameters on the process. To plan an experiment and maximize phenol removal, the response surface methodology (RSM) was applied. Ideal conditions for optimum efficiency (95.96%) include initial phenol concentration of 58 mg/L, pH of 7.51, reaction time of 68.61 min, mL H<sub>2</sub>O<sub>2</sub>/L PW of 0.18, and catalyst dosage of 0.4 g/L PW. Trapping experiments prove that ˙O<sub>2</sub> and ˙OH produced in Fenton and photocatalytic processes are the predominant active radicals in this process. The kinetics was fitted with the first-order, second-order, <i>n</i>-order, and Langmuir–Hinshelwood models using nonlinear least squares techniques. The <i>n</i>-order model with <i>n</i> = 0.54 was found to be the most suitable model (<i>R</i><sup>2</sup> 0.998), with a model constant of <i>k</i> = 0.11 (mol<sup>0.46</sup>/L<sup>0.46</sup>.s).</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 6","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Mohamed Rabia, Asmaa M. Elsayed, Eman Aldosari, Ahmed Adel A. Abdelazeez
A promising optoelectronic device for light sensing in both the UV and Vis regions is fabricated. This device consists of a nanocomposite resembling coral reefs, termed AgI/polypyrrole-iodide (AgI/Ppy-I). The resulting nanocomposite exhibits a hierarchical structure wherein larger particles, comprising smaller particles ~45 nm and an optical bandgap measuring 2.4 eV, form a coral reef-like morphology. The sensitivity estimation of this constructed optoelectronic device relies on evaluating the current density (Jph) values. Under illumination, a remarkable augmentation in current density (Jph = 0.46 mA cm−2) with a promising value compared to the dark condition's 0.12 mA cm−2. The optical characteristics of this nanocomposite make it highly conducive to efficient UV–Vis light sensing. The values of D (detectivity), reflecting the device's sensitivity, are notably high at 4 × 108 and 3.82 × 108 Jones in the UV and Vis regions, correspondingly. The potential of this photodetector is reinforced by the computed R-values, which denote the device's responsivity. With values of 1.8 and 1.72 mA W−1 across these two optical regions, correspondingly, it showcases the nanocomposite's effectiveness in transforming incident light into electrical current. Moreover, the appeal of this photodetector extends beyond its performance characteristics. Its cost-effectiveness, eco-friendliness, straightforward preparation methodology, scalability for mass production, and high stability collectively. The versatility of this material, coupled with its advantageous attributes, opens avenues for its widespread application, catering to the diverse needs of industries and contributing to the accessibility of efficient optoelectronic devices for a broader audience.
我们制造出了一种用于紫外线和可见光区域光感应的前景广阔的光电设备。该器件由一种类似珊瑚礁的纳米复合材料组成,称为 AgI/聚吡咯-碘化物(AgI/Ppy-I)。由此产生的纳米复合材料呈现出一种分层结构,其中较大的颗粒由约 45 nm 的较小颗粒组成,光带隙为 2.4 eV,形成类似珊瑚礁的形态。对这种构建的光电器件的灵敏度估计依赖于对电流密度(Jph)值的评估。在光照条件下,电流密度(Jph = 0.46 mA cm-2)明显增加,与黑暗条件下的 0.12 mA cm-2 相比,其值很有希望。这种纳米复合材料的光学特性非常有利于实现高效的紫外可见光传感。在紫外区和可见光区,反映器件灵敏度的 D 值(检测率)分别高达 4 × 108 琼斯和 3.82 × 108 琼斯。计算得出的 R 值(表示器件的响应度)进一步证实了这种光电探测器的潜力。这两个光学区域的响应值分别为 1.8 mA W-1 和 1.72 mA W-1,这表明纳米复合材料能有效地将入射光转化为电流。此外,这种光电探测器的吸引力还不止于其性能特点。它具有成本效益、环保、制备方法简单、可大规模生产以及高稳定性等特点。这种材料的多功能性加上其优势特性,为其广泛应用开辟了道路,满足了各行各业的不同需求,并有助于为更多人提供高效的光电设备。
{"title":"Coral reefs-like shape AgI/polypyrrole nanocomposite through the intercalation of iodide ions in the network for optoelectronic applications","authors":"Mohamed Rabia, Asmaa M. Elsayed, Eman Aldosari, Ahmed Adel A. Abdelazeez","doi":"10.1002/ep.14475","DOIUrl":"10.1002/ep.14475","url":null,"abstract":"<p>A promising optoelectronic device for light sensing in both the UV and Vis regions is fabricated. This device consists of a nanocomposite resembling coral reefs, termed AgI/polypyrrole-iodide (AgI/Ppy-I). The resulting nanocomposite exhibits a hierarchical structure wherein larger particles, comprising smaller particles ~45 nm and an optical bandgap measuring 2.4 eV, form a coral reef-like morphology. The sensitivity estimation of this constructed optoelectronic device relies on evaluating the current density (J<sub>ph</sub>) values. Under illumination, a remarkable augmentation in current density (J<sub>ph</sub> = 0.46 mA cm<sup>−2</sup>) with a promising value compared to the dark condition's 0.12 mA cm<sup>−2</sup>. The optical characteristics of this nanocomposite make it highly conducive to efficient UV–Vis light sensing. The values of D (detectivity), reflecting the device's sensitivity, are notably high at 4 × 10<sup>8</sup> and 3.82 × 10<sup>8</sup> Jones in the UV and Vis regions, correspondingly. The potential of this photodetector is reinforced by the computed R-values, which denote the device's responsivity. With values of 1.8 and 1.72 mA W<sup>−1</sup> across these two optical regions, correspondingly, it showcases the nanocomposite's effectiveness in transforming incident light into electrical current. Moreover, the appeal of this photodetector extends beyond its performance characteristics. Its cost-effectiveness, eco-friendliness, straightforward preparation methodology, scalability for mass production, and high stability collectively. The versatility of this material, coupled with its advantageous attributes, opens avenues for its widespread application, catering to the diverse needs of industries and contributing to the accessibility of efficient optoelectronic devices for a broader audience.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"43 6","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}