Environmental Progress & Sustainable Energy最新文献

{"title":"Experimental investigation of performance, emission, and combustion characteristics of a CI engine operating on blends of waste cooking oil biodiesel/diesel under variable compression ratios condition","authors":"Md. Nasar Equbal,&nbsp;Ashok Kumar Dewangan,&nbsp;Syed Quadir Moinuddin,&nbsp;Ashok Kumar Yadav,&nbsp;Aqueel Ahmad","doi":"10.1002/ep.70028","DOIUrl":"10.1002/ep.70028","url":null,"abstract":"<p>With rising global energy demand and diminishing fossil fuel reserves, the pursuit of sustainable alternatives has become imperative. Biodiesel derived from waste cooking oil (WCO) is a renewable, low-emission fuel that also addresses environmental concerns associated with waste disposal. This study investigates the influence of compression ratio (CR) on the performance, combustion, and emission characteristics of a compression ignition (CI) engine fueled with WCO biodiesel–diesel blends. Blends of 10%, 20%, and 30% biodiesel with diesel, designated B10, B20, and B30, were tested at CRs of 16, 17, and 18. The fuel blends exhibited physical and chemical properties similar to diesel, allowing use without engine modifications. Experimental results revealed that brake thermal efficiency (BTE) decreased slightly with increasing biodiesel content, with B10, B20, and B30 showing reductions of 0.42%, 1.43%, and 2.12%, respectively, compared to diesel. Specific fuel consumption increased by 2%–4%. While NOx emissions rose by 2%–5% at higher CRs, HC and CO emissions declined significantly. CO emissions declined by 6%, 8%, and 4% at CRs 16, 17, and 18, respectively. Higher CRs also led to shorter ignition delay and an increase in peak cylinder pressure by 9.5%. However, the maximum heat release rate declined with increasing CR, with values of 40.4, 35.8, and 28.33 J/°CA at CRs 16, 17, and 18, respectively. Overall, WCO biodiesel/diesel blends demonstrate promising potential as a clean, sustainable alternative to diesel, offering acceptable performance with reduced emissions in CI engines.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100967","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":"Synergistic enhancement in carbon nitride quantum dots@NaBiO3 for solar-driven photocatalysis: A combined experimental and theoretical study","authors":"Avin A. Ahmed,&nbsp;Lazgin A. Jamil,&nbsp;Shinwar A. Idrees","doi":"10.1002/ep.70036","DOIUrl":"10.1002/ep.70036","url":null,"abstract":"<p>The fast growth of industrialization and the increase in chemical use have made water pollution a serious issue that endangers both the environment and people. Pollutants in wastewater have serious environmental and health issues. This research examines the synergetic effect of a novel metal-free nanocomposite, carbon nitride quantum dots (CNQDs) anchored to NaBiO₃ photocatalyst. CNQDs@NaBiO₃ nanocomposites were successfully synthesized to harvest solar light and to remove contaminants like pesticides, pharmaceuticals, and dyes. CNQDs@NaBiO₃ was characterized utilizing available techniques, including scanning electron microscopy–Energy Dispersive X-ray, Fourier-transfer infrared spectroscopy, x-ray diffraction (XRD), UV–visible, and DRS spectroscopy. The removal efficiency was assessed for methylene blue, eosin yellowish, tetracycline, and trifluralin under visible light exposure and solar light. The resulting rate constant of degradation is remarkably efficient for all molecules, and its kinetics were second-order for all: trifluralin 0.1828 M min⁻¹, tetracycline 0.2249 M min⁻¹, methylene blue 0.1438 M min⁻¹, and eosin yellowish 0.1579 M min⁻¹. It is worth mentioning that CNQDs@NaBiO₃ works at a temperature range of 15–45°C and shows maximum degradation at 15°C. The trapping experiments were also conducted to determine the ROS involved in degradation and the mechanism. Experimental findings indicate that all active species, h⁺, e⁻, O₂^−•, and •OH, are involved in degradation. DFT simulation was performed to reveal details about the newly designed CNQDs@NaBiO₃ nanocomposite compared to NaBiO₃, and for this reason, optical and electronic properties were computed. Theoretical results showed that CNQDs have a synergetic effect on NaBiO₃, which provides extra bands, an extended band edge, and a broadened spectrum of light absorption that is more useful in solar light harvesting.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145101027","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":"Development of an empirical model to represent the cetane number of biodiesel fuels, for their use instead of fossil fuels in order to reduce air pollution","authors":"Nayereh Sadat Mousavi,&nbsp;Ascención Romero-Martínez","doi":"10.1002/ep.70005","DOIUrl":"10.1002/ep.70005","url":null,"abstract":"<p>This work introduces a novel empirical, phenomenological equation specifically developed for the accurate prediction of the cetane number (CN) of both pure fatty acid methyl esters (FAMEs) and biodiesel fuels. The model comprehensively incorporates all key structural factors influencing CN, including chain length, degree of unsaturation, molecular weight, concentration (weight percentage), and, importantly, the position of double bonds. A robust and extensive dataset of 135 data points was meticulously examined to create this phenomenological model, enabling CN prediction for biodiesel derived from diverse feedstock oils. All key influencing parameters within the proposed model are thoroughly analyzed, and its predictive capabilities are rigorously compared against both experimental data and existing empirical models. The model demonstrates a high degree of accuracy, yielding Average Absolute Relative Deviation (AARD) and Average Standard Relative Deviation (ASRD) values of 2.20% and 2.69%, respectively, for predicting the CN of pure FAMEs. For a large experimental dataset of biodiesel fuels, the corresponding values are 3.70% and 5.07%, respectively. Significantly, the proposed model exhibits superior performance compared to 13 other models reported in the existing literature. This demonstrates that the newly developed predictive model can successfully and accurately estimate the CN of both pure FAMEs and biodiesel fuels, offering a valuable tool for reducing the time and cost associated with engine testing.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145022262","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":"Performances of Cu-Zn hydroxyacetate double salts adsorbent for the removal of different kinds of anionic dyes: Modeling of adsorption isotherms and adsorption kinetics","authors":"Hassiba Bessaha,&nbsp;Hakim Aguedal,&nbsp;Kheira El Akeb,&nbsp;Mohamed Bouraada,&nbsp;Bruno Azambre","doi":"10.1002/ep.70033","DOIUrl":"10.1002/ep.70033","url":null,"abstract":"<p>A layered Cu-Zn hydroxyacetate double salt (CuZnAc) was synthesized from ZnO and Cu(CH₃COO)₂ and tested for adsorption of anionic dyes (Evans Blue, Yellow Thiazole, Indigo Carmine, Brilliant Blue R) with varying charges. X-ray diffraction, Fourier-transform infrared spectroscopy, and thermogravimetric analysis confirmed the layered structure. Adsorption was pH-independent (5–9.5) and highly dependent on dye structure, with capacities of 727.40 (EB), 746.00 (YT), 204.47 (IC), and 105.95 (BBR) mg g⁻¹. Isotherm data fitted best to Sips/Toth (EB), Sips (IC), and Redlich-Peterson (YT, BBR) models, while kinetics followed pseudo-first order (EB, YT, BBR) and pseudo-second order (IC). Thermodynamics revealed spontaneous, endothermic adsorption with increased interfacial randomness. The material retained 58%–65% efficiency after five regeneration cycles. CuZnAc shows promise for removing diverse anionic dyes from wastewater.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100897","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":"Eco-durability impact of rice husk ash and hybrid fibers on high-performance fiber-reinforced densified concrete","authors":"May Huu Nguyen,&nbsp;Minh-Hieu Nguyen,&nbsp;Duy-Hai Vo,&nbsp;Chao-Lung Hwang,&nbsp;Trong-Phuoc Huynh","doi":"10.1002/ep.70030","DOIUrl":"10.1002/ep.70030","url":null,"abstract":"<p>The use of supplementary cementitious materials (SCMs) has gained significant attention in recent years as a strategy to enhance the sustainability and durability of concrete while reducing its environmental footprint. Therefore, this research aims to investigate the performance of high-performance fiber-reinforced concrete (HPFRC) incorporated with rice husk ash (RHA) and hybrid fibers (HFs), focusing on durability, SCMs, and environmental impact. HPFRC compositions with varying RHA (10%, 20%, and 30% by weight) and HF (0.4%, 0.8%, and 1.2%, 1.6% by volume) contents were investigated. Moderate RHA proportions (e.g., 10–20%) improved electrical resistivity, while a balance of RHA and hybrid fibers helped moderate the increase in water absorption typically associated with RHA's hydrophilic nature. Sustainability indicators demonstrated that RHA could reduce global warming potential and embodied energy indices by 25.6% and 24.5%, respectively, whereas the HFs increased them by 57.4% and 190.7%, respectively, highlighting the balance between mechanical performance and environmental sustainability. Combining RHA and HFs in the densified mixture design algorithm is a promising approach for creating durable, mechanically strong, and environmentally friendly concrete. These findings are expected to promote sustainable concrete development and future construction material innovations.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100887","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":"Research on the efficiency and influencing factors of realizing the value of ecological products in China's forestry and grassland industry","authors":"Zhang Haiqi","doi":"10.1002/ep.70024","DOIUrl":"10.1002/ep.70024","url":null,"abstract":"<p>This article investigates the efficiency level of ecological product value realization in China's forest and grass industry and its influencing factors in 31 provinces from 2018 to 2022. The investigation is based on the perspective of forest and grass integration, and the SBM-Malmquist-Random Forest-Gray Correlation Model is constructed for this purpose. The findings reveal that from 2018 to 2022, the efficiency level of value realization for ecological products in China's forestry and grassland industry exhibited an upward trend. However, discernible regional disparities were observed, with the eastern coastal regions and resource-rich areas in the south demonstrating notable efficiency, while the northeastern provinces and Tibet exhibited significantly lower efficiency. The findings of the random forest and gray correlation analyses indicate that the level of urbanization, the level of economic development, government investment, the degree of forest and grassland resources, and the level of science and technology are pivotal factors influencing the value realization of ecological products from forestry and grassland industries. In light of these findings, it is recommended that the Chinese government consider the implementation of additional policies aimed at enhancing the protection of forest and grassland resources, policy investment, and scientific and technological innovation in the future.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100882","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":"Hydroxylation of hybrid epoxidized palm oleic acid for polyol production using amberlite resin IR-120 as catalyst","authors":"Mohd Jumain Jalil,&nbsp;Nurashikin Abdullah,&nbsp;Intan Suhada Azmi","doi":"10.1002/ep.70027","DOIUrl":"10.1002/ep.70027","url":null,"abstract":"<p>The substitution of petroleum with virgin oils (VOs) has raised global food security concerns due to the competition for agricultural resources. Therefore, this study explores the conversion of a hybrid raw material (waste cooking oil and palm oil) into polyol via epoxidation and hydroxylation reactions. Alcohol was added to the epoxidized oil to produce polyol. This study aimed to investigate how different oxygen carriers and alcohols affect the oxirane conversion and polyol production from epoxidized hybrid oils. Formic acid yielded a 51% relative conversion to oxirane (RCO) within 40 min, outperforming acetic acid. Isopropanol was the most effective alcohol for ring opening, resulting in the lowest final oxirane value (10%), indicating high epoxide-to-polyol conversion. FTIR analysis confirmed hydroxyl group presence at 3400 cm⁻¹. The kinetic parameters obtained for epoxidation were k₁₁ = 0.0181, k₁₂ = 0.297, and k₂ = 0.0106. The simulation model demonstrated acceptable accuracy, with a minimal error of approximately 0.20 compared to experimental data. This study demonstrates a sustainable route for producing polyols from mixed oil feedstocks, with potential applications in bio-based materials.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100888","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":"Innovative study for enhanced performance of the photogalvanic cells for solar energy conversion and storage","authors":"Mohan Lal","doi":"10.1002/ep.70031","DOIUrl":"10.1002/ep.70031","url":null,"abstract":"<p>The main objective of the present research is to improve solar energy conversion and photogalvanic cell storage for power generation. In order to provide electricity to the entire planet, the scientific community worldwide is compelled to search for renewable energy sources that are both economically and environmentally feasible. Therefore, using solar energy to generate renewable energy is the best way to meet the country's energy needs. A digital pH meter, carbon pot, micro-ampere, resistance key, and specifically constructed H-shaped photogalvanic (PG) cell were employed in the investigation. A mixture of surfactants (NaLS + CTAB), reductant (Xylose), and dye-Methylene blue (MB) solution was used for the PG cell. Through the manipulation of various current parameters, the impact of solar energy was examined. The photopotential (PP) and photocurrent (PC) with mixed surfactant (CTAB+NaLS) system were measured at 702.00 mV and 237.00 μA, respectively. The PP and PC with single surfactant (CTAB) system were measured at 681.00 mV and 48.00 μA, respectively. The PP and PC with single surfactant (NaLS) system were measured at 635.00 mV and 90.00 μA, respectively. In the absence of light, the PG cell performance was determined at 90.00 minutes, yielding a conversion efficiency of 0.4327%. With a focus on improved electrical output and solar energy storage, it has been experimentally demonstrated that the mixed surfactants (NaLS+CTAB) in PG cells are the more effective system than single surfactant system.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100883","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":"Spatial relationship between production-ecology-living land transformation and eco-environmental quality: A case study of Hexi corridor, Northwest China","authors":"Xiaoxu Wei,&nbsp;Zhenyi Ma,&nbsp;Wei Wei,&nbsp;Xuewen Yang,&nbsp;Binbin Xie,&nbsp;Junju Zhou,&nbsp;Congying Liu,&nbsp;Yali Zhang,&nbsp;Lina Yu","doi":"10.1002/ep.70018","DOIUrl":"10.1002/ep.70018","url":null,"abstract":"<p>With global environmental changes and intensified human activities, land-use patterns have undergone profound changes, which have had a profound impact on the structure and function of ecosystems. As an important ecological barrier and resource-rich area in China, the stability of the ecological environment in the Hexi Corridor is crucial. In this paper, land use data from 2000 to 2020 were selected to establish a classification system for PELS and to calculate land use transfer matrix, ecological environment quality index, ecological contribution rate, and change patterns in Hexi Corridor, northwest China. The spatial and temporal evolution of PELS and the influence to eco-environmental quality of the Hexi Corridor were analyzed through using spatial analyze methods. The results showed that: (1) The area of production and living space in Hexi Corridor was continuously increased while the area of ecological space has continuously decreased. The land conversion between living and ecological space was more frequent, and the conversion area was also large. (2) The comprehensive ecological environment quality index region increased from 0.145 in 2000 to 0.166 in 2020, which indicated that the ecological environment of the Hexi Corridor was continuously improving. The spatial distribution of ecological environmental quality transformation showed that the medium quality area has increased significantly. (3) The conversion of PELS has a great impact on the regional ecological environment quality, especially the conversion of grassland into other types was the key direct factor leading to the change of local ecological quality. The thoughts and prospects proposed in this paper can help improving ecological management and green development for Hexi Corridor in future.</p>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100874","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":"Design of an innovative fuel-efficient stove for reducing air pollution and enhancing sustainability","authors":"Ramesh Chandra Nayak,&nbsp;Manmatha K. Roul,&nbsp;Mahesh Vasantrao Kulkarni","doi":"10.1002/ep.70022","DOIUrl":"10.1002/ep.70022","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>This study presents a fuel-efficient stove designed to reduce harmful emissions, thereby improving indoor air quality in rural households. Traditional stoves are a significant source of household air pollution (HAP), which is linked to respiratory and other health issues. The innovative design of this stove minimizes emissions and maximizes thermal efficiency, directly addressing the challenge of reducing indoor air pollution.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Design/Methodology/Approach</h3>\u0000 \u0000 <p>The improved stove operates using solid biomass fuel, with an innovative design aimed at enhancing combustion efficiency and reducing emissions. Wood is used as the primary fuel, while superheated steam is introduced into the combustion zone to aid in particulate matter reduction. The stove utilizes a solar-powered fan to regulate airflow, improving combustion conditions. Unlike natural buoyancy-driven draft through a chimney, the fan assists in controlling the airflow dynamics by either enhancing the air intake or supporting the exhaust process, depending on operating conditions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Findings</h3>\u0000 \u0000 <p>Superheated steam aids in improving the combustion efficiency of the primary fuel by promoting better mixing and flame temperature, thereby leading to more complete combustion and reduced emissions. Additionally, the presence of steam contributes to better heat transfer within the stove, causes an improvement in overall thermal efficiency.</p>\u0000 </section>\u0000 </div>","PeriodicalId":11701,"journal":{"name":"Environmental Progress & Sustainable Energy","volume":"44 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145102355","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}