Pub Date : 2025-02-04DOI: 10.1016/j.jclepro.2025.144937
Olga Ferreira, Mafalda Gil, Ana Carapeto, Andreia Barreto, Manuela Pereira, Mário S. Rodrigues, Lucas Habib, Luciana C. Gomes, Rita Teixeira-Santos, Filipe J.M. Mergulhão, Elisabete R. Silva
Water pollution demands urgent global attention. Nanotechnology offers a green decontamination alternative, but current solutions fall short in terms of efficiency, scalability, and long-term protection. This study introduces a novel nanohybrid material, TiO2-NCO/E, obtained by grafting Econea® biocide onto TiO2anatase nanoparticles. A suite of methodologies was used to scrutinize its physical-chemical structure, composition, morphology, optical properties, and stability. The new TiO2-NCO/E (0.5 g/L) exhibited improved photocatalytic performance, notably a 78% increase in a methylene blue degradation kinetic rate under visible (450 nm) light compared to pristine TiO2. Furthermore, the TiO2-NCO/E hampered the growth of World Health Organization-prioritized Gram-positive and Gram-negative waterborne pathogens in dark and UV-A irradiation conditions, enhancing its antimicrobial impact. The characterization of the mechanisms of action of the novel TiO2-NCO/E revealed that this nanohybrid material targets bacterial cell membranes and induces metabolic changes and oxidative stress in bacteria. Additionally, insights into the morphology and biophysical changes on inactivated methicillin-resistant S. aureus (MRSA) and V. cholerae bacteria following treatment with the TiO2-NCO/E reveal synergistic antimicrobial effects from both the biocide and TiO2. Overall, the findings highlight the tailoring nature of TiO2, supporting its use in water decontamination processes. This study aims to inspire further research and development in pursuing sustainable and green solutions to environmental pollution.
{"title":"An engineered, biocide-grafted TiO2-based nanohybrid material with enhanced photocatalytic and antimicrobial activity","authors":"Olga Ferreira, Mafalda Gil, Ana Carapeto, Andreia Barreto, Manuela Pereira, Mário S. Rodrigues, Lucas Habib, Luciana C. Gomes, Rita Teixeira-Santos, Filipe J.M. Mergulhão, Elisabete R. Silva","doi":"10.1016/j.jclepro.2025.144937","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144937","url":null,"abstract":"Water pollution demands urgent global attention. Nanotechnology offers a green decontamination alternative, but current solutions fall short in terms of efficiency, scalability, and long-term protection. This study introduces a novel nanohybrid material, TiO<sub>2</sub>-NCO/E, obtained by grafting Econea® biocide onto TiO<sub>2</sub> <em>anatase</em> nanoparticles. A suite of methodologies was used to scrutinize its physical-chemical structure, composition, morphology, optical properties, and stability. The new TiO<sub>2</sub>-NCO/E (0.5 g/L) exhibited improved photocatalytic performance, notably a 78% increase in a methylene blue degradation kinetic rate under visible (450 nm) light compared to pristine TiO<sub>2</sub>. Furthermore, the TiO<sub>2</sub>-NCO/E hampered the growth of World Health Organization-prioritized Gram-positive and Gram-negative waterborne pathogens in dark and UV-A irradiation conditions, enhancing its antimicrobial impact. The characterization of the mechanisms of action of the novel TiO<sub>2</sub>-NCO/E revealed that this nanohybrid material targets bacterial cell membranes and induces metabolic changes and oxidative stress in bacteria. Additionally, insights into the morphology and biophysical changes on inactivated methicillin-resistant <em>S. aureus (</em>MRSA) and <em>V. cholerae bacteria</em> following treatment with the TiO<sub>2</sub>-NCO/E reveal synergistic antimicrobial effects from both the biocide and TiO<sub>2</sub>. Overall, the findings highlight the tailoring nature of TiO<sub>2</sub>, supporting its use in water decontamination processes. This study aims to inspire further research and development in pursuing sustainable and green solutions to environmental pollution.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"37 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 : 2025-02-04DOI: 10.1016/j.jclepro.2025.144936
Andrea De Toni, Eugenio Morello
Achieving sustainable and climate-proof urban areas has gained considerable attention, focusing on participatory processes in co-designing solutions for urban regeneration. However, these processes often result in general recommendations that risk is ineffective and does not produce tangible outcomes if not integrated into urban plans. Moreover, participatory efforts have overlooked operational industrial areas despite their potential for environmental quality improvement. Thus, unlike many participatory processes that yield general, non-actionable recommendations, this study’s unique contribution lies in providing a robust and replicable outcome-oriented methodology that integrates co-designed goals directly into urban planning, ensuring that recommendations translate into concrete, measurable impacts for regenerating operational industrial areas with a view to sustainable development and adaptation to climate change. In addition, this study emphasises the critical role of formal governance and collaboration between enterprises and local governments in transforming and managing industrial sites. Through a detailed, four-phase co-design method evaluated in a real-world setting, this study outlines how stakeholder involvement, material selection and goal-setting can drive actionable urban transformation. The experience emphasised the importance of establishing a rigorous work schedule and helped the enterprises involved by outlining the activities’ outcomes and impacts. This study underscores the need for institutional frameworks that foster sustained public–private partnerships, supporting the long-term management and implementation of sustainability initiatives within industrial sites.
{"title":"Sustainable Regeneration of Industrial Areas through Enterprise Engagement in Collaborative Design","authors":"Andrea De Toni, Eugenio Morello","doi":"10.1016/j.jclepro.2025.144936","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144936","url":null,"abstract":"Achieving sustainable and climate-proof urban areas has gained considerable attention, focusing on participatory processes in co-designing solutions for urban regeneration. However, these processes often result in general recommendations that risk is ineffective and does not produce tangible outcomes if not integrated into urban plans. Moreover, participatory efforts have overlooked operational industrial areas despite their potential for environmental quality improvement. Thus, unlike many participatory processes that yield general, non-actionable recommendations, this study’s unique contribution lies in providing a robust and replicable outcome-oriented methodology that integrates co-designed goals directly into urban planning, ensuring that recommendations translate into concrete, measurable impacts for regenerating operational industrial areas with a view to sustainable development and adaptation to climate change. In addition, this study emphasises the critical role of formal governance and collaboration between enterprises and local governments in transforming and managing industrial sites. Through a detailed, four-phase co-design method evaluated in a real-world setting, this study outlines how stakeholder involvement, material selection and goal-setting can drive actionable urban transformation. The experience emphasised the importance of establishing a rigorous work schedule and helped the enterprises involved by outlining the activities’ outcomes and impacts. This study underscores the need for institutional frameworks that foster sustained public–private partnerships, supporting the long-term management and implementation of sustainability initiatives within industrial sites.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"133 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Metal tailings contain a variety of toxic heavy metals and have potential environmental risks owing to long-term open.piling. This study investigated the influence of a plant fiber covering on the distributions of tailings water, heat, and tailing biocementation for improved regulation of tailings pollution by microbial-induced calcium precipitation. Simulation and field tests were conducted to investigate different compositions covering (jute, straw, coconut, palm) and different specifications (300 g·m−2, 500 g·m−2, 700 g·m−2, and 900 g·m−2) of the plant fiber covering. The results show that the plant fiber blanket cover can: (1) reduce the tailing temperature by 0.9∼10.6°C, the daily temperature difference by 0.5∼6.2°C and the daily variation range by 0∼10.5°C, among which the 900 g·m−2 straw fiber blanket (D9) can reduce the temperature by 4.6∼10.6°C, the daily temperature difference by 1.7∼6.2°C and the daily variation range by 2.7∼6.8°C; (2) improve the water retention of tailings and reduce evaporation by 37.0∼71.3%, in which D9 can reduce evaporation by 71.3%; (3) increase thickness 0.15∼2.53 mm, shear strength 0.34∼1.04kg·cm-2 and hardness 3.60∼15.40N, which can effectively inhibit dust deposition, and D9 can increase 2.53 mm, shear strength 1.04 kg·cm-2 and hardness 15.40N of the biological cementing layer. These findings suggest that the plant fiber covering enhanced the inhibition of diffuse tailings pollution by microbial-induced calcium precipitation technology, with D9 showing the optimal effect. This study can provide theoretical support for the application of microbial-induced calcium precipitation technology to regulate diffusion of tailings pollution in dry areas.
{"title":"The Influence of Hydrothermal Salt and Tailing Biocementation Covered by Fiber Covering in an Arid Region","authors":"Xin Wang, Zhengzhong Jin, Xiangxiang Yu, Haifeng Wang, Jia Duo, Liang Pei, Jiangfei Shi, Xinwen Xu","doi":"10.1016/j.jclepro.2025.144904","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144904","url":null,"abstract":"Metal tailings contain a variety of toxic heavy metals and have potential environmental risks owing to long-term open.piling. This study investigated the influence of a plant fiber covering on the distributions of tailings water, heat, and tailing biocementation for improved regulation of tailings pollution by microbial-induced calcium precipitation. Simulation and field tests were conducted to investigate different compositions covering (jute, straw, coconut, palm) and different specifications (300 g·m<sup>−2</sup>, 500 g·m<sup>−2</sup>, 700 g·m<sup>−2</sup>, and 900 g·m<sup>−2</sup>) of the plant fiber covering. The results show that the plant fiber blanket cover can: (1) reduce the tailing temperature by 0.9∼10.6°C, the daily temperature difference by 0.5∼6.2°C and the daily variation range by 0∼10.5°C, among which the 900 g·m<sup>−2</sup> straw fiber blanket (D9) can reduce the temperature by 4.6∼10.6°C, the daily temperature difference by 1.7∼6.2°C and the daily variation range by 2.7∼6.8°C; (2) improve the water retention of tailings and reduce evaporation by 37.0∼71.3%, in which D9 can reduce evaporation by 71.3%; (3) increase thickness 0.15∼2.53 mm, shear strength 0.34∼1.04kg·cm<sup>-2</sup> and hardness 3.60∼15.40N, which can effectively inhibit dust deposition, and D9 can increase 2.53 mm, shear strength 1.04 kg·cm<sup>-2</sup> and hardness 15.40N of the biological cementing layer. These findings suggest that the plant fiber covering enhanced the inhibition of diffuse tailings pollution by microbial-induced calcium precipitation technology, with D9 showing the optimal effect. This study can provide theoretical support for the application of microbial-induced calcium precipitation technology to regulate diffusion of tailings pollution in dry areas.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"19 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 : 2025-02-04DOI: 10.1016/j.jclepro.2025.144952
Arjun T. Ramshankar, Kelly D. Farmer, Akanksha K. Menon, Joe F. Bozeman
Decarbonizing the construction sector is vital to meet the U.S. national greenhouse gas emission targets. To this effect, the development and deployment of bio-based alternatives to existing construction materials is becoming an increasingly used strategy to reduce the embodied carbon of the built environment. Hemp-based insulation is one such alternative. While several studies have aimed to quantify the environmental benefits of deploying hemp insulation, the economic modeling is currently limited to purchase price data. In this study, a Monte Carlo-based techno-economic model is proposed to fill this gap. The developed model incorporates the uncertainty surrounding a supply chain in its infancy to determine the economic viability of the hemp insulation across a range of input parameters. The results obtained show that the retrofit of existing bioproducts/manufacturing plants to produce hemp insulation increases the rate of payback and breakeven. The model further analyzes the economic viability of hemp insulation across different production rates and selling prices, which in turn reflects the economic performance across different rates of demand and market penetration of the insulation. Further sensitivity analysis shows that the price of the procured hemp fibers, the selling price of the finished product, and the demand for the finished product are key factors that determine the magnitude of economic success. Lastly, this study shows the need for further development of the hemp supply chain and the hemp market, with opportunities for manufacturers to strongly consider mass production of hemp insulation.
{"title":"Scalability of Hemp-based Thermal Insulation in the United States – A Monte Carlo-based Techno-economic Approach","authors":"Arjun T. Ramshankar, Kelly D. Farmer, Akanksha K. Menon, Joe F. Bozeman","doi":"10.1016/j.jclepro.2025.144952","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144952","url":null,"abstract":"Decarbonizing the construction sector is vital to meet the U.S. national greenhouse gas emission targets. To this effect, the development and deployment of bio-based alternatives to existing construction materials is becoming an increasingly used strategy to reduce the embodied carbon of the built environment. Hemp-based insulation is one such alternative. While several studies have aimed to quantify the environmental benefits of deploying hemp insulation, the economic modeling is currently limited to purchase price data. In this study, a Monte Carlo-based techno-economic model is proposed to fill this gap. The developed model incorporates the uncertainty surrounding a supply chain in its infancy to determine the economic viability of the hemp insulation across a range of input parameters. The results obtained show that the retrofit of existing bioproducts/manufacturing plants to produce hemp insulation increases the rate of payback and breakeven. The model further analyzes the economic viability of hemp insulation across different production rates and selling prices, which in turn reflects the economic performance across different rates of demand and market penetration of the insulation. Further sensitivity analysis shows that the price of the procured hemp fibers, the selling price of the finished product, and the demand for the finished product are key factors that determine the magnitude of economic success. Lastly, this study shows the need for further development of the hemp supply chain and the hemp market, with opportunities for manufacturers to strongly consider mass production of hemp insulation.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"40 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 : 2025-02-04DOI: 10.1016/j.jclepro.2025.144954
Vivek Arulnathan, Ian Turner, Maurice Doyon, Eric Li, Nathan Pelletier
The National Environmental Sustainability and Technology Tool (NESTT) is an online, farm-level, sustainability decision support tool developed for Canadian egg farmers. Its primary objectives include estimating the environmental impacts of egg production, aiding farmers in analyzing promising green technologies, and offering decision support features such as benchmarking. The tool was developed using an ISO 14044-compliant Life Cycle Assessment (LCA) framework, incorporating findings from previous LCA studies within the Canadian egg industry. NESTT employs one tonne of eggs as the functional unit, defines system boundaries from cradle-to-farm gate, and bases co-product allocation on feed energy utilization. The primary inventory data collected in NESTT focuses exclusively on layer facilities, while inventory data for other foreground processes, feed inputs, and background processes is sourced from either previous Canadian LCA studies or third-party inventory databases. Overall impacts are determined by aggregating the impact assessment results of six modules: pullets, feed, energy inputs, water, manure management, and transportation. After assessing their farm’s environmental performance, farmers can explore the potential for mitigating impacts by adopting green technologies such as solar/wind energy generation. As the first LCA-based, multi criteria, environmental assessment tool developed in the Canadian agri-food industry and the first decision support tool of its kind developed for the egg industry, NESTT can readily be adapted for use in egg industries worldwide and even across other livestock sectors.
{"title":"NESTT – development of an online, life cycle-based sustainability assessment and management platform for Canadian egg farmers","authors":"Vivek Arulnathan, Ian Turner, Maurice Doyon, Eric Li, Nathan Pelletier","doi":"10.1016/j.jclepro.2025.144954","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144954","url":null,"abstract":"The National Environmental Sustainability and Technology Tool (NESTT) is an online, farm-level, sustainability decision support tool developed for Canadian egg farmers. Its primary objectives include estimating the environmental impacts of egg production, aiding farmers in analyzing promising green technologies, and offering decision support features such as benchmarking. The tool was developed using an ISO 14044-compliant Life Cycle Assessment (LCA) framework, incorporating findings from previous LCA studies within the Canadian egg industry. NESTT employs one tonne of eggs as the functional unit, defines system boundaries from cradle-to-farm gate, and bases co-product allocation on feed energy utilization. The primary inventory data collected in NESTT focuses exclusively on layer facilities, while inventory data for other foreground processes, feed inputs, and background processes is sourced from either previous Canadian LCA studies or third-party inventory databases. Overall impacts are determined by aggregating the impact assessment results of six modules: pullets, feed, energy inputs, water, manure management, and transportation. After assessing their farm’s environmental performance, farmers can explore the potential for mitigating impacts by adopting green technologies such as solar/wind energy generation. As the first LCA-based, multi criteria, environmental assessment tool developed in the Canadian agri-food industry and the first decision support tool of its kind developed for the egg industry, NESTT can readily be adapted for use in egg industries worldwide and even across other livestock sectors.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"7 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 : 2025-02-04DOI: 10.1016/j.jclepro.2025.144938
Zhiyong Han, Ming Ni, Mingqi Huang, Zheshi Bao
Green creativity demonstrated by employees in the workplace is beneficial for companies to combat global pollution. While previous research has started to examine the effects of leadership styles specific to certain contexts on employee green creativity (EGC), there is limited literature available that explores the impact of environmentally-specific responsible leadership (ESRL) on EGC. To address this research gap, this study developed and validated a moderated mediation model based on social information processing theory. The analysis of data from 238 full-time manufacturing company employees in China revealed a positive relationship between ESRL and EGC. The relationship between ESRL and EGC was mediated by green job autonomy. This indicates that ESRL can exert an indirect effect on EGC through green job autonomy. Green job resource adequacy not only strengthened the relationship between green job autonomy and EGC, but also positively moderated the mediation of green job autonomy between ESRL and EGC. The findings of this study can inform organizational practice with regard to the enhancement of EGC in response to the deterioration of the natural environment and the increasing environmental demands of stakeholders.
{"title":"Environmentally-special responsible leadership and employee green creativity: The role of green job autonomy and green job resource adequacy","authors":"Zhiyong Han, Ming Ni, Mingqi Huang, Zheshi Bao","doi":"10.1016/j.jclepro.2025.144938","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144938","url":null,"abstract":"Green creativity demonstrated by employees in the workplace is beneficial for companies to combat global pollution. While previous research has started to examine the effects of leadership styles specific to certain contexts on employee green creativity (EGC), there is limited literature available that explores the impact of environmentally-specific responsible leadership (ESRL) on EGC. To address this research gap, this study developed and validated a moderated mediation model based on social information processing theory. The analysis of data from 238 full-time manufacturing company employees in China revealed a positive relationship between ESRL and EGC. The relationship between ESRL and EGC was mediated by green job autonomy. This indicates that ESRL can exert an indirect effect on EGC through green job autonomy. Green job resource adequacy not only strengthened the relationship between green job autonomy and EGC, but also positively moderated the mediation of green job autonomy between ESRL and EGC. The findings of this study can inform organizational practice with regard to the enhancement of EGC in response to the deterioration of the natural environment and the increasing environmental demands of stakeholders.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"40 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 : 2025-02-04DOI: 10.1016/j.jclepro.2025.144949
K.L. van den Broek, L. de Jager, R. Doran, G. Böhm
How actors perceive the transition pathways towards sustainable energy production and use will likely influence their support in their everyday behaviour and political engagement towards the energy transition. Mapping actors’ mental models of the drivers of the energy transition can provide key insights into such perceptions. The present study is the first to systematically map mental models of the drivers of the energy transition, compare mental models between actor groups, and explain differences in mental models with political orientation and worry about climate change. We mapped mental models about the energy transition among a sample of experts (N=25), and representative samples of Dutch (N=299) and Norwegian (N=313) citizens. Participants visualised their perceptions of the causal relations of different energy transition pathways by drawing a diagram using a standardised tool to map mental models (M-Tool). The results demonstrate (1) a key focus in the mental models on renewable energy generation such as solar panels, wind farms, and hydropower, (2) that expert mental models are more focused on policy pathways compared to citizen mental models, (3) that mental models of actors leaning towards the political right focus less on individual behaviour than left-leaning actors, and (4) that climate change worry results in more focus on individual behaviour and policy pathways in the mental models. Policymakers could use these insights to engage citizens with the energy transition, for example, by tailoring their messages to the mental models of the target group.
{"title":"Expert and citizen perceptions of the drivers of the energy transition: A mental model approach","authors":"K.L. van den Broek, L. de Jager, R. Doran, G. Böhm","doi":"10.1016/j.jclepro.2025.144949","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144949","url":null,"abstract":"How actors perceive the transition pathways towards sustainable energy production and use will likely influence their support in their everyday behaviour and political engagement towards the energy transition. Mapping actors’ mental models of the drivers of the energy transition can provide key insights into such perceptions. The present study is the first to systematically map mental models of the drivers of the energy transition, compare mental models between actor groups, and explain differences in mental models with political orientation and worry about climate change. We mapped mental models about the energy transition among a sample of experts (<em>N</em>=25), and representative samples of Dutch (<em>N</em>=299) and Norwegian (<em>N</em>=313) citizens. Participants visualised their perceptions of the causal relations of different energy transition pathways by drawing a diagram using a standardised tool to map mental models (M-Tool). The results demonstrate (1) a key focus in the mental models on renewable energy generation such as solar panels, wind farms, and hydropower, (2) that expert mental models are more focused on policy pathways compared to citizen mental models, (3) that mental models of actors leaning towards the political right focus less on individual behaviour than left-leaning actors, and (4) that climate change worry results in more focus on individual behaviour and policy pathways in the mental models. Policymakers could use these insights to engage citizens with the energy transition, for example, by tailoring their messages to the mental models of the target group.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"38 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 : 2025-02-04DOI: 10.1016/j.jclepro.2025.144934
Yanchun Huang, Weifang Huang, Luming Dou, Longguo Li, Chao Liu, Bo Lai, Naiwen Li
Efficient and sustainable water purification is the key to safe drinking water. Single-atom Fenton-like processes have attracted widespread attention because of high catalytic efficiency and environmental friendliness. Herein, Ag single-atom catalyst (SACs) in porous tubular carbon nitride (SAAg@PTCN) was successfully synthesized by one-step thermal polymerization method using silver tricyanomethanide (AgTCM), urea and melamine, which was based on the molecular structural similarity between AgTCM and g-C3N4. The addition of single-atom Ag promoted photocarrier separation, inhibited recombination, expanded light absorption range, reduced potential barrier and improved electron transfer ability in visible light and peroxymonosulfate (Vis-PMS) system, which was beneficial to improve the degradation efficiency of carbamazepine (CBZ). The CBZ could be degraded 98.2% in 45 min and degradation rate constant in SAAg@PTCN/Vis-PMS system (0.066 min−1) was notably higher compared to PTCN/Vis-PMS (0.0219 min−1). Significantly, Ag+ concentration after photocatalytic degradation remained at 0.07 mg/L and the degradation efficiency could still reach 100% after five reactions, which indicated that SAAg@PTCN/Vis-PMS system had strong stability and recyclability. Furthermore, non-free radicals (1O2 and h+) and free radicals (O2•−, HO• and SO4•−) were the primary reactive oxygen species (ROS), which was beneficial to adapt to a wide range of pH and degrade a variety of pollutants in actual water bodies. The solar powered Fenton-like water purification device had achieved efficient co-degradation performance for EPs and microcystis aeruginosa, which verified the practical application potential of SAAg@PTCN. SAAg@PTCN held significant promise as a sustainable and viable solution for efficient water purification.
{"title":"Single-atom Ag confined with nitrogen coordination in porous tubular g-C3N4 as Fenton-like photocatalyst for solar-powered water purification","authors":"Yanchun Huang, Weifang Huang, Luming Dou, Longguo Li, Chao Liu, Bo Lai, Naiwen Li","doi":"10.1016/j.jclepro.2025.144934","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144934","url":null,"abstract":"Efficient and sustainable water purification is the key to safe drinking water. Single-atom Fenton-like processes have attracted widespread attention because of high catalytic efficiency and environmental friendliness. Herein, Ag single-atom catalyst (SACs) in porous tubular carbon nitride (SAAg@PTCN) was successfully synthesized by one-step thermal polymerization method using silver tricyanomethanide (AgTCM), urea and melamine, which was based on the molecular structural similarity between AgTCM and g-C<sub>3</sub>N<sub>4</sub>. The addition of single-atom Ag promoted photocarrier separation, inhibited recombination, expanded light absorption range, reduced potential barrier and improved electron transfer ability in visible light and peroxymonosulfate (Vis-PMS) system, which was beneficial to improve the degradation efficiency of carbamazepine (CBZ). The CBZ could be degraded 98.2% in 45 min and degradation rate constant in SAAg@PTCN/Vis-PMS system (0.066 min<sup>−1</sup>) was notably higher compared to PTCN/Vis-PMS (0.0219 min<sup>−1</sup>). Significantly, Ag<sup>+</sup> concentration after photocatalytic degradation remained at 0.07 mg/L and the degradation efficiency could still reach 100% after five reactions, which indicated that SAAg@PTCN/Vis-PMS system had strong stability and recyclability. Furthermore, non-free radicals (<sup>1</sup>O<sub>2</sub> and h<sup>+</sup>) and free radicals (O<sub>2</sub><sup>•−</sup>, HO<sup>•</sup> and SO<sub>4</sub><sup>•−</sup>) were the primary reactive oxygen species (ROS), which was beneficial to adapt to a wide range of pH and degrade a variety of pollutants in actual water bodies. The solar powered Fenton-like water purification device had achieved efficient co-degradation performance for EPs and microcystis aeruginosa, which verified the practical application potential of SAAg@PTCN. SAAg@PTCN held significant promise as a sustainable and viable solution for efficient water purification.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"24 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 : 2025-02-04DOI: 10.1016/j.jclepro.2025.144941
Pivatto Marinna, Vidotto Laís, Pereira Fernando O.R, Rüther Ricardo
As global demand for renewable energy continues to rise, managing end-of-life photovoltaic (PV) modules becomes increasingly critical. This study proposes a circular methodology to extend the life cycle of PV modules and address the challenges of PV module waste management. The research evaluated seventy six PV modules from a small, decommissioned photovoltaic system that operated in Brazil for over 20 years, using a comprehensive testing process, including visual inspection, insulation resistance, IV curve, and electroluminescence tests. The study presents the results and establishes criteria for determining the suitability of PV modules for a second life, with a focus on safety and performance. A workflow for decision-making regarding module reuse is developed based on acceptance and rejection criteria. The study shows a 68% reuse rate for the 22-years-old tested modules, highlighting the significance of standardized testing protocols and decision criteria in promoting PV module circularity. Furthermore, it shows that PV modules can outlast the PV manufacturers output power warranty periods. Recommendations for achieving this goal include refining testing protocols, ensuring scalability of criteria application, and considering financial feasibility in second life assessments. Establishing standardized guidelines is crucial for advancing the circular economy principles in the PV module second life sector.
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The elevating levels of atmospheric CO2 present a dual challenge of environmental degradation and the underutilization of potential carbon resources. Addressing these issues, our study explores innovative adsorbent materials, Zirconium Hydroxide (Zr(OH)₄) and Cerium Hydroxide (Ce(OH)₄), synthesized via both co-precipitation and sol-gel methods, for their efficacy in CO2 adsorption and conversion into ethylene urea (EU), a valuable chemical intermediate. Through meticulous characterization and comparative analysis, we discovered that sol-gel synthesized Zr(OH)₄ outperformed other synthesized adsorbents, displaying the highest pore volume (0.65 cm³/g) and average pore diameter (66.7 nm), indicative of internal hollow spaces and inter-particle pores, thereby enhancing porosity and CO₂ trapping efficiency. This material demonstrated a notable CO2 adsorption capacity of 1.18 mmol/g, exceeding that of co-precipitated Zr(OH)₄ (0.92 mmol/g), co-precipitated Ce(OH)₄ (0.25 mmol/g), and sol-gel synthesized Ce(OH)₄ (0.45 mmol/g). Following CO₂ adsorption, Zr(OH)₄ and Ce(OH)₄ were utilized in a reaction with ethylene diamine (EDA) in a 2-propanol solvent, achieving successful synthesis of EU. Remarkably, at 160 °C, sol-gel derived Zr(OH)₄ produced the maximum yield of EU (0.23 mmol), surpassing co-precipitated Zr(OH)₄ (0.16 mmol), co-precipitated Ce(OH)₄ (0.12 mmol), and sol-gel Ce(OH)₄ (0.12 mmol). Our findings underscore the potential of employing Zr(OH)₄, particularly synthesized via the sol-gel method, as an efficient CO2 adsorbent and accelerator in EU production. This research contributes to the field of CO2 capture and utilization and opens avenues for developing cost-effective and environmentally friendly processes for synthesizing industrially relevant compounds.
{"title":"Efficacy of Zirconium Hydroxide and Cerium Hydroxide for Carbon Dioxide Adsorption and Subsequent Ethylene Urea Synthesis","authors":"Farzana Rahman, , Tomohito Kameda, Mir Tamzid Rahman, Yuko Saito, Shogo Kumagai, Toshiaki Yoshioka","doi":"10.1016/j.jclepro.2025.144956","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144956","url":null,"abstract":"The elevating levels of atmospheric CO<sub>2</sub> present a dual challenge of environmental degradation and the underutilization of potential carbon resources. Addressing these issues, our study explores innovative adsorbent materials, Zirconium Hydroxide (Zr(OH)₄) and Cerium Hydroxide (Ce(OH)₄), synthesized via both co-precipitation and sol-gel methods, for their efficacy in CO<sub>2</sub> adsorption and conversion into ethylene urea (EU), a valuable chemical intermediate. Through meticulous characterization and comparative analysis, we discovered that sol-gel synthesized Zr(OH)₄ outperformed other synthesized adsorbents, displaying the highest pore volume (0.65 cm³/g) and average pore diameter (66.7 nm), indicative of internal hollow spaces and inter-particle pores, thereby enhancing porosity and CO₂ trapping efficiency. This material demonstrated a notable CO<sub>2</sub> adsorption capacity of 1.18 mmol/g, exceeding that of co-precipitated Zr(OH)₄ (0.92 mmol/g), co-precipitated Ce(OH)₄ (0.25 mmol/g), and sol-gel synthesized Ce(OH)₄ (0.45 mmol/g). Following CO₂ adsorption, Zr(OH)₄ and Ce(OH)₄ were utilized in a reaction with ethylene diamine (EDA) in a 2-propanol solvent, achieving successful synthesis of EU. Remarkably, at 160 °C, sol-gel derived Zr(OH)₄ produced the maximum yield of EU (0.23 mmol), surpassing co-precipitated Zr(OH)₄ (0.16 mmol), co-precipitated Ce(OH)₄ (0.12 mmol), and sol-gel Ce(OH)₄ (0.12 mmol). Our findings underscore the potential of employing Zr(OH)₄, particularly synthesized via the sol-gel method, as an efficient CO<sub>2</sub> adsorbent and accelerator in EU production. This research contributes to the field of CO<sub>2</sub> capture and utilization and opens avenues for developing cost-effective and environmentally friendly processes for synthesizing industrially relevant compounds.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"133 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
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