Environmental Technology & Innovation最新文献

{"title":"Complete degradation of 3-amino-1,2,4-triazol-5-one (ATO) by manganese oxide","authors":"Mitchell P. Miller ,&nbsp;Robert A. Root ,&nbsp;Reyes Sierra-Alvarez ,&nbsp;Jon Chorover ,&nbsp;Jim A. Field","doi":"10.1016/j.eti.2025.104308","DOIUrl":"10.1016/j.eti.2025.104308","url":null,"abstract":"<div><div>Insensitive high-explosive compounds like 3-nitro-1,2,4-triazol-5-one (NTO) can contaminate soil and water at military sites. This study compared the ability of synthesized and commercial MnO₂ materials to degrade the reduced daughter product of NTO, 3-amino-1,2,4-triazol-5-one (ATO), and characterized the solid-phase transformations that govern the products formed in continuous-flow reactors. Synthetic birnessite degraded ATO fastest (<em>k</em> = 15.0 h⁻¹) but had poor hydraulic characteristics. Whereas the commercial material Pro-OX™️ had a good degradation rate (<em>k</em> = 0.64 h⁻¹) and its granular morphology ensured good hydraulic performance. Results show ATO is oxidized by MnO₂-type minerals to benign end-products (urea, NH₄^+, CO_2(g), and N_2(g)). Spent Mn oxides were fully regenerated using KMnO₄ or NaOCl, restoring or even surpassing their original oxidative capacity. Further investigation of Pro-OX in packed-bed columns under a simulated wastewater treatment regime (1 mM ATO, empty bed contact time [EBCT]= 1 h) showed that the column reached breakthrough (C/C₀ ≥ 0.05) at 2400 pore volumes (PVs), with a capacity to degrade 190 mg ATO g⁻¹. Under accelerated groundwater flow regime (0.1 mM ATO, EBCT= 24 h), the reactor removed ATO effectively for the duration of operation (660 PVs). After reacting with ATO, the Mn oxide material initially dominated by Mn^(IV) (e.g., pyrolusite, ramsdellite, todorokite) was converted to Mn^(III) minerals (e.g., groutite, manganite) and soluble Mn^(II) (recovered in effluent) indicating reduction of MnO₂ concurrent with ATO oxidation. Collectively, these findings demonstrate that MnO₂ is a promising material for application in permeable reactive barriers or packed-bed filters to treat waters contaminated with ATO at military sites.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"39 ","pages":"Article 104308"},"PeriodicalIF":6.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Enhancing leafy green vegetable growth and quality through the foliar application of copper oxide nanoparticles","authors":"Shang Gao ,&nbsp;Heping Shang ,&nbsp;Chaoyi Deng ,&nbsp;Ian Eggleston ,&nbsp;Jason C. White ,&nbsp;Masoud Hashemi ,&nbsp;Yi Wang ,&nbsp;Baoshan Xing","doi":"10.1016/j.eti.2025.104310","DOIUrl":"10.1016/j.eti.2025.104310","url":null,"abstract":"<div><div>The application of nanotechnology to enhance crop yield has garnered growing interest. The present work investigated the effects of copper oxide nanoparticles (CuO NPs) on the development of Chinese cabbage (<em>Brassica pekinensis</em> (Lour.) Rupr.) and spinach (<em>Spinacia oleracea</em> L.). In the greenhouse study, upon a foliar treatment with CuO NPs (80 mg/L), the fresh shoot biomass of Chinese cabbage and spinach was significantly increased by 29.06 % and 26.34 % respectively, compared to the untreated control. Meanwhile, no significant differences were observed between the foliar treatments with CuSO₄, bulk CuO, and the untreated control. Notably, CuO NPs enhanced the concentrations of Fe, Mg, and Zn by 112.3 %, 37.9 %, and 36.5 % in Chinese cabbage, and 59.4 %, 30.3 %, 15.4 % in spinach, and increased the levels of organic compounds such as vitamin C and carotene in leaves by 51.89 % and 42.24 % as compared to the untreated control, which are beneficial for human health. Compared to the untreated control, the concentration of carotene in spinach leaves increased by 42.24 %, and the concentration of vitamin C in Chinese cabbage leaves increased by 51.89 %. Taken together, our findings provide valuable information and an approach for improving the yield and quality of leafy green vegetables.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"39 ","pages":"Article 104310"},"PeriodicalIF":6.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144220964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Enhancing water retention performance of biochar modified by alkali-treated coal fly ash: Pyrolysis behavior, field simulation, and metal leaching assessment","authors":"Pu Yang ,&nbsp;Hao Xu ,&nbsp;Mengzhu Yu ,&nbsp;Kanokwan Yamsomphong ,&nbsp;M Ismail Bagus Setyawan ,&nbsp;Fumitake Takahashi","doi":"10.1016/j.eti.2025.104306","DOIUrl":"10.1016/j.eti.2025.104306","url":null,"abstract":"<div><div>Biochar, produced from biomass pyrolysis, is widely recognized as an effective soil amendment due to its ability to enhance soil water retention capacity. To further improve biochar’s performance, catalytic pyrolysis using coal fly ash (CFA), as a low-cost and promising additive owing to its containing catalytically active minerals, was explored in this study. CFA was expected to enhance pyrolysis efficiency and serve as a soil conditioner. Raw CFA (RCFA) and KOH-modified CFA (KC11) were tested in pyrolysis of rice straw. The addition of KC11 reduced the apparent activation energy (166.19 KJ/mol) of RS pyrolysis and promoted gas production (2.14 ± 0.3 g), while RCFA increased liquid yields. Heavy metal leaching tests suggested minimal environmental risk associated with the application of biochar. The modification increased the potassium content in biochar and enhanced its water retention properties. Notably, while specific surface area (SSA) and hydrophilic functional groups may not be dominant in soil water retention. Soils amended with KC11-derived biochar (B-KC11) extended the first evaporation stage (12.3–19.3 h) and exhibited the highest evaporation mitigation capacity (EMC) (1115.66 hr), which represents the ability to mitigate physical evaporative water loss. A field simulation based on experimental water evaporation profiles confirmed the temperature-dependent benefits of biochar application, and evaporation could be reduced by up to 30.32 % in biochar-amended soil. Overall, this study demonstrates that CFA, particularly in its alkali-modified form, can serve as an effective catalyst and soil amendment, offering a sustainable strategy to enhance biochar’s water retention capacity and agronomic value.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"39 ","pages":"Article 104306"},"PeriodicalIF":6.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144220965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Trisynergy of photosynthetic biogas upgrading, anaerobic digestate bioremediation, and pigment biosynthesis","authors":"Viktoriia Komarysta ,&nbsp;Silvia Bolado Rodriguez ,&nbsp;Raúl Muñoz Torre","doi":"10.1016/j.eti.2025.104305","DOIUrl":"10.1016/j.eti.2025.104305","url":null,"abstract":"<div><div>Integrating environmental biotechnologies with valuable product biosynthesis can enhance the economic feasibility of environmental protection while reducing the costs of bioactive compound production. This study presents the first proof of concept for photosynthetic biogas upgrading and nutrient removal from anaerobic digestate, coupled with pigment biosynthesis in algae and cyanobacteria cultures. Pre-cultivation with aerobic activated sludge mitigated the toxicity of NH₄⁺ from the liquid fraction of anaerobic digestate and H₂S from biogas, protecting pigment-producing strains. Partial pre-nitrification of NH₄⁺ followed by complete H₂S pre-oxidation with aerobic activated sludge supported the growth of <em>Chlorella</em> sp. and <em>Coelastrella</em> sp., while <em>Arthrospira platensis</em> required complete pre-nitrification to grow with both clean and H₂S-laden biogases. In the liquid fraction of anaerobic digestate, sulfur supplementation via H₂S-laden biogas stimulated the propagation of all cultures. Under these conditions, the complete removal of H₂S by aerobic activated sludge was recorded, while final CO₂ levels of 6.0 %, 2.4 %, and 0.07 % were observed in <em>Chlorella</em> sp., <em>Coelastrella</em> sp., and <em>A. platensis</em> tests, correspondingly. <em>Chlorella</em> sp. and <em>Coelastrella</em> sp., respectively, removed 79 and 70 % nitrogen and 64 and 65 % of phosphorus under clean biogas, while <em>A. platensis</em> achieved 82 % nitrogen and 73 % phosphorus removals under pre-desulfurized H₂S-laden biogas. These findings support the development of efficient cultivation strategies for biogas upgrading and the remediation of the liquid fraction of anaerobic digestate using pigment-producing strains.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"39 ","pages":"Article 104305"},"PeriodicalIF":6.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Dual-functional remediation of ammonia nitrogen contamination in ionic rare earth mines: Efficient washing and soil stabilization using lignosulfonates","authors":"Chunfu Kang ,&nbsp;Jiahao Pan ,&nbsp;Yuxia Luo ,&nbsp;Xinyi Xie ,&nbsp;Youwei Yang ,&nbsp;Zhiqiang Zou ,&nbsp;Xuefu Zhao ,&nbsp;Ming Chen ,&nbsp;Chunying Wang","doi":"10.1016/j.eti.2025.104297","DOIUrl":"10.1016/j.eti.2025.104297","url":null,"abstract":"<div><div>Ammonia nitrogen (NH₄⁺-N) pollution from in-situ leaching of ionic rare earth mines poses severe ecological risks, including soil acidification and groundwater contamination. This study proposes a novel dual-functional strategy using lignosulfonates—calcium lignosulfonate (CLS) and sodium lignosulfonate (SLS)—to simultaneously remove NH₄⁺-N and stabilize soil structure. Batch and column experiments revealed that CLS washed 297.70 mg NH₄⁺-N (compared to 170.23 mg by water washing) from simulated contaminated soil, while SLS removed 306.79 mg. Kinetic modeling using the Elovich and Two-constant equations (<em>R</em>² = 0.910–0.941) indicated that NH₄⁺-N removal was primarily governed by heterogeneous diffusion and cation exchange processes. CLS outperformed SLS in soil stabilization, increasing shear strength by 114 % and reducing soil porosity by 49.40 % through particle aggregation. Field-collected soil experiments validated CLS's robust performance, achieving &gt; 91 % removal of exchangeable NH₄⁺-N while maintaining a neutral pH (7.54 compared to SLS-induced pH 10.08), avoiding secondary alkalization risks. Mechanistic analysis highlighted Ca²⁺-mediated ion exchange, electrostatic interactions with sulfonic groups, and hydrogen bonding as key pathways. This work provides a sustainable solution leveraging industrial byproducts (lignosulfonates) for eco-friendly mine remediation, aligning with circular economy principles.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"39 ","pages":"Article 104297"},"PeriodicalIF":6.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Green Technology Transfer for Firms in a Multi-layer Network Perspective: The Dual Impact of Knowledge Resources and Regional Environment","authors":"Xiaoyi shi ,&nbsp;Feixue Sui ,&nbsp;Xiaoxia Huang","doi":"10.1016/j.eti.2025.104291","DOIUrl":"10.1016/j.eti.2025.104291","url":null,"abstract":"<div><div>Green technology transfer has become a critical approach for energy conservation and emission reduction. This study examines how micro-level knowledge resources and macro-level regional environments jointly influence firms' green technology transfer processes. Drawing on social network theory, resource-based theory, and regional innovation system theory, this study constructs a multi-layer network model that integrates knowledge elements, firms, and cities. We employ the Exponential Random Graph Model (ERGM) to analyze the mechanisms influencing inter-firm green technology transfer. The findings show that, at the micro level, knowledge diversity promotes technology adoption but hinders technology output; specialized knowledge enhances technology adoption; firms' knowledge combined potential and knowledge uniqueness weaken their ability to absorb external technology but facilitate outbound technology transfer. At the macro level, geographical distance significantly hinders technology transfer. In summary, firms' green technology transfer is constrained by both knowledge resources and geographical proximity. This study provides a theoretical foundation for enterprises to optimize knowledge management strategies and for policymakers to enhance technology transfer support systems. By integrating micro-level knowledge resource systems and macro-level regional environments into a unified network model, the study overcomes the limitations of traditional single-level analyses and broadens the scope of technology transfer research by incorporating a multidimensional perspective.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"39 ","pages":"Article 104291"},"PeriodicalIF":6.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Microbial inoculation influences bacterial and autotrophic community assembly in cow dung–cotton straw composting to promote carbon sequestration and humification","authors":"Liuyan Zhou ,&nbsp;Zhihui Wang ,&nbsp;Pengbing Li ,&nbsp;Renna Sa ,&nbsp;Zhifang Wang ,&nbsp;Nannan Wang ,&nbsp;Yuqing Xie ,&nbsp;Xinping Yang","doi":"10.1016/j.eti.2025.104290","DOIUrl":"10.1016/j.eti.2025.104290","url":null,"abstract":"<div><div>Inoculation with microbial agents affects the composition and assembly of microbial communities in compost, subsequently improving the stability and humification of the material carbon pool. However, the effects of carbon sequestration and humus components on microbial community assembly processes during composting are still unclear. To address this, we established control (CK) and inoculation (TG) treatments based on a multifunctional microbial agent. The results showed that inoculation increased the <em>β</em>-glucosidase, acetyl-CoA synthase, polyphenol oxidase, peroxidase, and pmoA enzyme activities in compost. These composting characteristic changes stimulated carbon retention and humification, resulting in final total organic carbon (TOC) and humic-substance (HS) contents enhanced by 11.8 % and 14.8 %, respectively. Deterministic and stochastic processes dominated the assembly process of bacterial and <em>cbbL</em>-containing autotrophic (CCA) communities, respectively. Inoculation also increased the complexity and stability of microbial networks while strengthening the contribution of abiotic and biotic factors in reshaping the structure of bacterial and CCA communities. The <em>norank_f_A4b</em>, <em>Paracoccus</em>, and <em>Rhodospirillum</em> genera were identified as the key taxa in TG affecting the construction of microbial communities. TOC and HS were the main driving factors for community assembly, wherein they regulated the assembly process of the CCA community by affecting the <em>α</em>-diversity and key taxa. Interestingly, we also found that bacteria may mediate the assembly of CCA communities. The results of this study provide valuable insights for effective carbon-oriented humification practices in composting and for improving the fertility and economic benefits of composting.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"39 ","pages":"Article 104290"},"PeriodicalIF":6.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Investigating the sustainable and efficient mechanism for adsorptive removal of riboflavin by CaCe-layered double hydroxide functionalized spent tea biochar","authors":"Adeyinka Sikiru Yusuff","doi":"10.1016/j.eti.2025.104303","DOIUrl":"10.1016/j.eti.2025.104303","url":null,"abstract":"<div><div>Riboflavin (RF) is chiefly produced through fermentation technology. However, its separation and purification upon successful fermentation are quite complex and expensive due to presence of impurities in fermentation broth. Adsorption is considered as a cost-effective method for RF recovery during which an efficient and reusable adsorbent is crucial. Herein, the adsorptive removal of RF from aqueous phase by spent tea biochar supported CaCe-layered double hydroxide (STB/CaCe-LDH) composite was investigated. The STB/CaCe-LDH samples which were prepared at different Ca: Ce molar ratios via a co-precipitation-impregnation-pyrolysis route, were analyzed to gain insight into their physicochemical and structural properties using BET, FTIR, XRD, SEM and pH_pzc techniques. STB/CaCe-LDH sample synthesized at Ca: Ce molar ratio of 2:1 showed good uptake capacity for RF removal. The adsorption experimental conditions were optimized using Taguchi design approach, and the optimization results revealed that STB/CaCe-LDH2:1 dosage had the most significant influence on RF removal efficiency. The adsorption optimum conditions in relation to STB/CaCe-LDH2:1 dosage, RF concentration, adsorption duration and pH as operating parameters were obtained to be 50 mg, 20 mg L⁻¹, 90 min and 6.0, respectively. These optimum experimental conditions resulted in 98.41<span><math><mrow><mo>±</mo><mn>0.39</mn></mrow></math></span>% RF removal efficiency, signifying the potential of the STB/CaCe-LDH2:1 in adsorbing RF. The RF adsorption data best conformed to Langmuir isotherm model with monolayer uptake capacity of 695.2 mg g-¹, while the pseudo-second-order model adequately fitted the adsorption kinetics data than pseudo-first-order model. Moreover, the STB/CaCe-LDH2:1 showed relative stability after seven adsorption-desorption cycles. A remarkable reduction of 72.6 % in STB/CaCe-LDH2:1 consumption was predicted for two-stage batch adsorber as compared to a single-stage process. These findings demonstrate that STB/CaCe-LDH2:1 is a promising adsorbent for removing RF from aqueous solution.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"39 ","pages":"Article 104303"},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144220811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Optimizing calculation method for zeolite unit thickness of a permeable reactive barrier coupling adsorption with simultaneous nitrification-denitrification for landfill leachate polluted groundwater","authors":"Xin Xiang ,&nbsp;Ke Ning ,&nbsp;Fei Liu ,&nbsp;Mengxian Wei ,&nbsp;Jialin Wang ,&nbsp;Nan Zhang ,&nbsp;Shanshan Yang","doi":"10.1016/j.eti.2025.104295","DOIUrl":"10.1016/j.eti.2025.104295","url":null,"abstract":"<div><div>Ammonium-nitrogen (NH₄ ⁺-N) can be efficiently removed by permeable reactive barrier (PRB) technology for landfill leachate polluted groundwater. The thickness of zeolite unit plays a critical role in defining the operational longevity of zeolite-based PRB. It is vital to calculate the zeolite unit thickness and predict changes in its saturated state. Nonetheless, few studies have conducted to ascertain the zeolite unit thickness by combining the biological nitrification rate constant with the equilibrium adsorption capacity of zeolite. To treat NH₄ ⁺ -N-contaminated groundwater and predict the change of zeolite unit, sequential column experiments were performed. Besides, an optimized calculation method for the zeolite unit thickness was provided in this study. Nano-aeration for oxygenation and the addition of external carbon sources were adopted in Aerobic Column and Denitrification Column, respectively. The results of column experiment indicated that the removal rate of NH₄ ⁺ -N and total nitrogen could reach 99 % during the 123 pore volumes (PVs) operation cycle. Moreover, denitrification occurred in Aerobic Column due to the localized low oxygen environment and the enhanced ratio of COD to total nitrogen. The first-order rate constants of zeolite adsorption, nitrification and denitrification in Aerobic Column were 0.5213–0.7693, 0.0384–0.0858 and 0.1376–0.2233 h^-1, respectively. Moreover, the calculation of zeolite unit thickness was optimized based on the nitrogen mass balance between influent and effluent, which combined the biological nitrification rate constant and the equilibrium adsorption capacity of zeolite. This optimized method for calculating zeolite unit thickness not only predicts saturated zeolite unit thickness over operating time, but also reduces the cost of PRB.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"39 ","pages":"Article 104295"},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"The role of low-carbon technology innovation incentive programs in achieving sustainable development goals in cities: Empirical evidence from 277 cities in China","authors":"Shicheng Deng ,&nbsp;Hongxia Wang ,&nbsp;Zengfu Yao","doi":"10.1016/j.eti.2025.104296","DOIUrl":"10.1016/j.eti.2025.104296","url":null,"abstract":"<div><div>The low-carbon city pilot policy (LCCPP) aims to incentivize green technology innovation (GTI) at the urban level and reduce urban carbon emissions. This paper examines the impact of China’s LCCPP on urban GTI and its spatial spillover effects, aiming to inform sustainable development strategies. Using panel data from 277 Chinese cities, we employ a spatial progressive difference-in-differences (SPDID) model integrated with a novel spatial composite weight matrix (SCWM). Results reveal three key findings: (1) The LCCPP significantly enhances both green innovation quantity (GIN) and green innovation quality (GIL) of urban GTI, with a stronger effect on GIN than GIL; (2) The LCCPP has a significant spatial spillover effect on urban GTI. Moreover, compared to the GIN, the LCCPP has a more significant driving effect on the GIL in neighboring cities; (3) The driving effect of LCCPP on urban GTI exhibits a four-year implementation lag. The direct and spatial spillover effects of LCCPP on urban GTI are more significant in eastern cities and non-resource-based cities. These findings underscore the critical role of spatial interdependence and phased policy learning in urban sustainable development. We recommend tiered policy diffusion, interregional innovation alliances, and tailored governance frameworks to optimize green innovation outcomes. This research advances the theoretical understanding of environmental policy design while offering actionable insights for global cities pursuing sustainable development.</div></div>","PeriodicalId":11725,"journal":{"name":"Environmental Technology & Innovation","volume":"39 ","pages":"Article 104296"},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}