Journal of Environmental Sciences-china最新文献_第2页

Bentonite supported cobalt catalyst prepared by blending method for the catalytic oxidation of desulfurization by-product sulfite: Catalytic performance and mechanism 用共混法制备膨润土负载钴催化剂催化氧化脱硫副产物亚硫酸盐：催化性能及机理

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-24 DOI: 10.1016/j.jes.2025.02.032

Fanbo Zeng , Jing Zhu , Feng Liu , Guoyu Zhang , Weirun Li , Wenye Li , Zhiwei Shang , Hong You , Shuxiao Wang , Zhipeng Li

{"title":"Bentonite supported cobalt catalyst prepared by blending method for the catalytic oxidation of desulfurization by-product sulfite: Catalytic performance and mechanism","authors":"Fanbo Zeng , Jing Zhu , Feng Liu , Guoyu Zhang , Weirun Li , Wenye Li , Zhiwei Shang , Hong You , Shuxiao Wang , Zhipeng Li","doi":"10.1016/j.jes.2025.02.032","DOIUrl":"10.1016/j.jes.2025.02.032","url":null,"abstract":"<div><div>Wet flue gas desulfurization (WFGD) could effectively reduce sulfur dioxide emission. However, magnesium sulfite (MgSO3), a by-product of desulfurization, was easy to result in secondary pollution. In this study, the solid catalyst Co-Bent (bentonite supported cobalt) was prepared by blending method for MgSO3 oxidation with bentonite as the carrier and cobalt as the active component. At the calcination temperature of 550 °C and the Co loading level of 3 wt.%, the catalyst showed excellent catalytic performance for the oxidation of high concentration MgSO3 slurry, and the oxidation rate of MgSO3 was 0.13 mol/(L·h). The research indicated that the active component was uniformly distributed within porous structure of the catalyst as Co3O4, which facilitated the oxidation of SO32− catalyzed by Co3O4. Kinetic researches indicated the oxidation rate of MgSO3 was influenced by the catalyst dosage, the reaction temperature, the solution pH, the airflow rate, and the SO32− concentration. Additionally, after recycling experiments, the regenerated catalyst retained its high catalytic performance for the MgSO3 oxidation. The reaction mechanism for the catalytic oxidation of MgSO3 by Co-Bent catalyst was also proposed. The generation of active free radicals (OH·, SO4−·, SO3−·, SO5−·) accelerated the MgSO3 oxidation. These results provide theoretical support for the treatment of MgSO3 and the development of durable catalyst.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 584-595"},"PeriodicalIF":5.9,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783507","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}

引用次数: 0

Advancing anti-freezing hydrogel electrolyte based on deep eutectic solvent for wide temperature range aqueous zinc-ion battery 基于深度共晶溶剂的宽温度范围锌离子电池抗冻水凝胶电解质的研制

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-24 DOI: 10.1016/j.jes.2025.02.022

Yuqi Jiang , Yifan Liao , Jiayi Chen , Kun Ma

{"title":"Advancing anti-freezing hydrogel electrolyte based on deep eutectic solvent for wide temperature range aqueous zinc-ion battery","authors":"Yuqi Jiang , Yifan Liao , Jiayi Chen , Kun Ma","doi":"10.1016/j.jes.2025.02.022","DOIUrl":"10.1016/j.jes.2025.02.022","url":null,"abstract":"<div><div>Hydrogels based on Deep Eutectic Solvents (DES) demonstrate remarkable anti-freezing, resilience, and toughness, presenting a promising avenue to the operation of aqueous zinc-ion batteries under extreme conditions. A gel electrolyte capable of operating over a wide temperature range is developed based on a DES comprising 1 mol/kg (m) Zn(ClO4)2 + 3.5 m Mg(ClO4)2. Spectral characterization confirms the synergistic influence of both anions and cations on the freezing point of the DES. With four hydrogen bond (HB) acceptors, Mg2+ exhibits strong electrostatic attraction towards the O atoms of H2O, while ClO4− forms numerous HBs with H2O molecules. This dual interaction allows for precise adjustment of the chemical environment around the H and O atoms of H2O, resulting in an exceptionally low freezing point of -116.92 °C for the DES. The gel electrolyte derived from this DES demonstrates an impressive ionic conductivity of 0.285 mS/cm at -70 °C. Leveraging its excellent low-temperature performance and compatibility with a zinc anode, the flexible Zn-Mn battery constructed with this electrolyte exhibits robust electrochemical performance at low temperatures. Specifically, at -70 °C, it achieves a high specific capacity of 76.83 mAh/g, displays excellent rate capability, and maintains stable cycling performance. Moreover, the Zn-Mn battery operates reliably across a broad temperature range from -70 to 80 °C. This study presents innovative insights for advancing Zn-Mn batteries capable of efficient operation across diverse environmental conditions, thereby opening new avenues for their development.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 596-605"},"PeriodicalIF":5.9,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785921","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}

引用次数: 0

Development of Palygorskite-CaIn2S4 composite for rapid Cr(VI) reduction under visible light 开发用于在可见光下快速还原六价铬的鳞片石-CaIn2S4 复合材料

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-22 DOI: 10.1016/j.jes.2025.02.021

Yuanyuan Wang, Shijun Jia, Shiqiang Ding, Wenyan Zhang, Rui Shu, Yingfei Hu

{"title":"Development of Palygorskite-CaIn2S4 composite for rapid Cr(VI) reduction under visible light","authors":"Yuanyuan Wang, Shijun Jia, Shiqiang Ding, Wenyan Zhang, Rui Shu, Yingfei Hu","doi":"10.1016/j.jes.2025.02.021","DOIUrl":"10.1016/j.jes.2025.02.021","url":null,"abstract":"<div><div>Using natural minerals to eliminate harmful Cr(VI) under sustainable sunshine has significant potential. Herein, Palygorskite nanorods were utilized as carriers for the in-situ synthesis of CaIn2S4 photocatalysts through a simple one-pot thermal process, enabling the efficient reduction of Cr(VI). With a Palygorskite to CaIn2S4 mass ratio of 5 %, the conversion rate of Cr(VI) reached 98 % after 60 min of visible-light exposure, with a remarkable reaction rate of 0.0633 min−1. The effective integration of CaIn2S4 with Palygorskite led to a more uniform dispersion of CaIn2S4, exposing more reactive sites. Moreover, the establishment of a heterojunction between CaIn2S4 and Palygorskite facilitated the transport of photogenerated electrons from CaIn2S4, enhancing the efficiency of charge separation. These factors contribute to the improved photocatalytic performance. Additionally, the developed composite photocatalysts demonstrated excellent stability under light exposure and could be reused efficiently. Trapping tests on active substances revealed that e− played key roles in the Cr(VI) reduction. This research suggests the potential of using natural minerals to fabricate composite photocatalysts capable of effectively removing pollutants from the environment using solar energy.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 562-575"},"PeriodicalIF":5.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783505","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}

引用次数: 0

In situ engineering 2D/3D CuCo2S4@Co3O4 heterojunction for sensing and photocatalytic degradation of diclofenac sodium in environmental water 环境水中双氯芬酸钠传感和光催化降解的原位工程2D/3D CuCo2S4@Co3O4异质结

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-22 DOI: 10.1016/j.jes.2025.02.020

Chunmei Chen , Yunjie Yang , Qiong Wang , Hui Li , Chun Chang

{"title":"In situ engineering 2D/3D CuCo2S4@Co3O4 heterojunction for sensing and photocatalytic degradation of diclofenac sodium in environmental water","authors":"Chunmei Chen , Yunjie Yang , Qiong Wang , Hui Li , Chun Chang","doi":"10.1016/j.jes.2025.02.020","DOIUrl":"10.1016/j.jes.2025.02.020","url":null,"abstract":"<div><div>Accurate determination and rapid degradation of organic pollutants are essential works in environmental improvement. Herein, the CuCo2S4@Co3O4 heterojunction with fascinating 2D-on-3D hierarchical nanoflowers architecture and highly distributed interface sites were successfully synthesized by CuCo-LDH topological transformation combine with in situ exterior sulfurization strategy. The 2D-on-3D nanoflowers architecture could improve light harvesting ability, provide large surface area, open channels and abundant edge sites. In particular, the intensive M-O-S-M heterojunction interface not only promote the photoexcited charge shuttling but provide abundant interface sites to enhance catalytic activity. As expected, the photocatalytic degradation rate of diclofenac sodium (DCF) on CuCo2S4@Co3O4 was approximately 100% within 30 min under 300 W mercury lamp, which was 1.28 times and 1.45 times higher than that of CuCo-LDH and CuCo2O4. The degradation rate for real samples were more than 80%, the mineralization rate was 90%, and the biological toxicity of degradation products decreased significantly. Furthermore, a novel photoelectrochemistry (PEC) sensor with CuCo2S4@Co3O4 as a photoanode was successfully constructed for directly sensing DCF, showing a wide linear range and satisfactory detection limit. The results indicate that the CuCo2S4@Co3O4 possess dual-functional peculiarity, hold vast potential for sensing and degradation environmental pollutants in wastewater.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 606-618"},"PeriodicalIF":5.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792628","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}

引用次数: 0

Effectiveness of various chemical leaching systems in the remediation of chromium-contaminated soil and their impact on chromium speciation 不同化学淋滤系统对铬污染土壤的修复效果及其对铬形态的影响

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-21 DOI: 10.1016/j.jes.2025.02.012

Yuxiao Jiang , Chao Hu , Aoyu Zhou , Huiyang Qiu , Benyi Cao , Jian Xu

{"title":"Effectiveness of various chemical leaching systems in the remediation of chromium-contaminated soil and their impact on chromium speciation","authors":"Yuxiao Jiang , Chao Hu , Aoyu Zhou , Huiyang Qiu , Benyi Cao , Jian Xu","doi":"10.1016/j.jes.2025.02.012","DOIUrl":"10.1016/j.jes.2025.02.012","url":null,"abstract":"<div><div>Chemical leaching techniques have been proven effective in removing heavy metal contaminants from soil using various leaching agents. Previous research has shown that both single-agent and composite leaching systems have been applied for the remediation of chromium-contaminated soils, with varying degrees of success depending on soil type and contaminant form. However, the removal rate of total chromium (Cr) and hexavalent chromium (Cr(VI)) often fluctuates based on the chemical composition of the leaching agents, as well as the soil's physicochemical properties, such as pH and Cr speciation stability. Therefore, this study investigates the effectiveness of 20 composite leaching systems, including deionized water, lime water, calcium chloride, sodium carbonate, and sodium phosphate, through soil column leaching tests. The aim was to evaluate their impact on soil pH, total Cr, and Cr(VI) removal, and to examine the transformation of various Cr species during the leaching process. Results reveal that lime water and sodium phosphate were particularly effective in stabilizing Cr(VI) and neutralizing soil pH, while total Cr removal amount ranged from 197.4 mg/kg to 1671.6 mg/kg and Cr(VI) removal amount ranged from 113.2 mg/kg to 316.8 mg/kg. We also find that using 0.2 mol/L citric acid, 0.1 mol/L hydrochloric acid, and 1.2 mL/g lime solution adjusted soil pH to 7.37, with average removal efficiencies of 34.6 %. for total Cr and 72.7 % for Cr(VI). Overall, our results suggest that the combined use of lime water and sodium phosphate is an effective strategy for remediating chromium-contaminated soil, particularly for stabilizing unleached Cr and adjusting soil pH.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 77-89"},"PeriodicalIF":5.9,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878961","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}

引用次数: 0

Assessing the effect of composted cyclosporin A fermentation residue as organic fertilizer: Focus on soil fertility and antibiotic resistance 环孢素A发酵渣堆肥作为有机肥的效果评价：以土壤肥力和抗生素耐药性为重点

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-13 DOI: 10.1016/j.jes.2025.02.008

Dong Wang , Xiang Chen , Xiaofen Li , Qingwen Zhang , Jiaqi Hou , Yuefei Li , Beidou Xi , Zhihao Sun , Shuaishuai Xin , Guocheng Liu , Huiling Liu , Yanjun Xin

{"title":"Assessing the effect of composted cyclosporin A fermentation residue as organic fertilizer: Focus on soil fertility and antibiotic resistance","authors":"Dong Wang , Xiang Chen , Xiaofen Li , Qingwen Zhang , Jiaqi Hou , Yuefei Li , Beidou Xi , Zhihao Sun , Shuaishuai Xin , Guocheng Liu , Huiling Liu , Yanjun Xin","doi":"10.1016/j.jes.2025.02.008","DOIUrl":"10.1016/j.jes.2025.02.008","url":null,"abstract":"<div><div>Cyclosporin A fermentation residue (CFR) is a type of organic waste generated during the production of cyclosporin A, which are abundant in nutrients including organic matter, phosphorus, nitrogen and potassium. Inappropriate handling of CFR not only waste valuable bioresources, but may also lead to the cyclosporin A and associated resistance genes into the natural environment, posing a significant threat to ecological system and human health. Land application was an effective way to resource recovery of CFR after aerobic composting (CAC). This study investigated the impact of CAC on soil fertility and environmental safety. The results indicated that CAC could improve soil nutrient contents and enhance enzyme activities. CAC altered the diversity and community composition of soil bacteria, resulting in an increase in the abundance of relevant bacteria beneficial for organic matter decomposition and cyclosporin A degradation. The introduced cyclosporin A (71.69 µg/kg) completely degraded within 20 days due to soil biodegradation. The significantly increased abundance of intIl, mdr3, pgp, TSR and pmra in the soil cultivation early stage were restored to the soil background level within 90 days, indicating a reduced risk of antimicrobial resistance. The results demonstrated that reasonable land application of CAC could improve soil fertility without antimicrobial resistance risk, which is helpful for evaluating the resource utilization value and environmental risks of antibiotic fermentation residue after aerobic composting.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 793-803"},"PeriodicalIF":5.9,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137924","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}

引用次数: 0

Ship emissions and reduction potential under domestic policies and international cooperation: A case study in Hainan, China 国内政策和国际合作下的船舶减排潜力：以中国海南为例

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-12 DOI: 10.1016/j.jes.2025.02.006

Weiwei Zhang , Wen Yi , Tingkun He , Xin Peng , Qiao Xing , Xiaochen Wu , Zhaohui Yang , Rongfu Xie , Aidan Xian , Huan Liu , Jiming Hao

{"title":"Ship emissions and reduction potential under domestic policies and international cooperation: A case study in Hainan, China","authors":"Weiwei Zhang , Wen Yi , Tingkun He , Xin Peng , Qiao Xing , Xiaochen Wu , Zhaohui Yang , Rongfu Xie , Aidan Xian , Huan Liu , Jiming Hao","doi":"10.1016/j.jes.2025.02.006","DOIUrl":"10.1016/j.jes.2025.02.006","url":null,"abstract":"<div><div>Ship emissions contribute considerably to air pollution and are expected to decline under domestic policies and international cooperation such as green shipping corridors (GSCs). However, evaluation of the emission reduction potential by the Domestic Emission Control Area (DECA) policy and GSC cooperation is still lacking. Here, a series of multi-year high spatiotemporal ship emission inventories around Hainan, a representative island province of China, were developed with the state-of-the-art Shipping Emission Inventory Model. The improved origin-destination identification algorithm allowed emission allocation to port level. The emission reduction potential of the DECA policy and Hainan's joining GSC was analyzed. In 2022, ship emission intensity in waters 12 Nm from Hainan (Hainan-12Nm) were 6.4 %-7.4 % of that in waters 12 Nm from China. From 2019 to 2022, Hainan-12Nm emissions dropped by 66.7 %-77.8 % for SO2 and PM2.5. Ideally, with adequate ultra-low-sulfur fuel, DECA can reduce SO2 and PM2.5 emissions by 16.6 % and 22.4 % yearly compared with no-DECA scenario. However, emission reduction would drop markedly if ultra-low-sulfur fuel is short in supply. Emissions of voyages passing through 200 Nm from Hainan took up 1 %-4 % of international shipping emissions, implying great emission reduction potential for Hainan's establishing GSCs, especially considering the flourishing South-South trade. This study provides a thorough assessment of the current state of shipping emissions around Hainan as well as offers excellent data support for Hainan to further advance the future upgrade of ship emission management policies.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"156 ","pages":"Pages 253-266"},"PeriodicalIF":5.9,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683525","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}

引用次数: 0

Auramine O, food dye induces cognitive impairment, anxiety, alters synaptic transmission and neural growth in zebrafish model 食用色素Auramine O诱导斑马鱼认知障碍、焦虑、改变突触传递和神经生长

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-08 DOI: 10.1016/j.jes.2025.02.004

Karthikeyan Ramamurthy , Santhanam Sanjai Dharshan , Kumar Ashok , Rajakrishnan Rajagopal , Ahmed Alfarhan , Ki Choon Choi , Ajay Guru , Jesu Arockiaraj

{"title":"Auramine O, food dye induces cognitive impairment, anxiety, alters synaptic transmission and neural growth in zebrafish model","authors":"Karthikeyan Ramamurthy , Santhanam Sanjai Dharshan , Kumar Ashok , Rajakrishnan Rajagopal , Ahmed Alfarhan , Ki Choon Choi , Ajay Guru , Jesu Arockiaraj","doi":"10.1016/j.jes.2025.02.004","DOIUrl":"10.1016/j.jes.2025.02.004","url":null,"abstract":"<div><div>Synthetic food dyes, widely used to enhance the visual appeal of food and beverages, are associated with potential neurobehavioral impacts, particularly in children. Despite its banned status in many regions, Auramine O (AO) has been detected as a contaminant in various food products. In silico studies have demonstrated that AO can induce neurotoxic effects. Zebrafish were exposed to varying concentrations of AO (5 and 10 mg/L) and acrylamide at 100 mg/L in the positive control (PC) group. Behavioral tests (Novel Object Recognition, Open Field Test, Light-Dark Test, Novel Tank Test, T-maze Test), enzymatic assays, histological analysis, and gene expression studies were conducted. Staining assays such as dichlorodihydrofluorescein diacetate (DCFH-DA) for reactive oxygen species (ROS), acridine orange for apoptosis, thioflavin for amyloid plaques, alizarin red s for calcification, and AO accumulation in brain tissue were conducted using High-Performance Liquid Chromatography (HPLC) analysis. AO exposure led to dose-dependent cognitive impairment, anxiety-like behaviors, decreased enzymatic marker levels, increased ROS levels, apoptosis, amyloid plaques, and calcification. Gene expression analysis revealed the upregulation of stress and inflammation-related genes and the downregulation of antioxidant and neuroprotective genes. HPLC confirmed AO accumulation in brain tissue. AO induces significant neurotoxicity in zebrafish, with higher concentrations causing more pronounced effects. These findings raise concerns about potential neurotoxic impacts on humans, particularly children, and highlight the need for stringent regulatory measures.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"158 ","pages":"Pages 24-38"},"PeriodicalIF":5.9,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168612","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}

引用次数: 0

Deciphering the interaction of sulfamethoxazole with biodegradable versus conventional, virgin versus aged microplastics in aquatic environment 水生环境中磺胺甲恶唑与生物可降解与常规、原生与老化微塑料的相互作用

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-08 DOI: 10.1016/j.jes.2025.02.002

Chenghui Luo , Xiuyun Shao , Jiachao Shen , Junjun Pei , Yuanfeng Wei , Kai Yin , Shenglian Luo

{"title":"Deciphering the interaction of sulfamethoxazole with biodegradable versus conventional, virgin versus aged microplastics in aquatic environment","authors":"Chenghui Luo , Xiuyun Shao , Jiachao Shen , Junjun Pei , Yuanfeng Wei , Kai Yin , Shenglian Luo","doi":"10.1016/j.jes.2025.02.002","DOIUrl":"10.1016/j.jes.2025.02.002","url":null,"abstract":"<div><div>Co-exposure of pharmaceuticals and microplastics (MPs) significantly exacerbates the aquatic environmental pollution issue. While MPs are identified as carriers of pollutants, research on the adsorption behaviors of biodegradable and conventional MPs to pharmaceuticals limited. The study investigated the adsorption behavior of conventional MPs (polystyrene and polyethylene terephthalate), biodegradable MPs (polylactic acid (PLA) and polybutylene succinate (PBS) for sulfamethoxazole (SMX). Meanwhile, changes in physical-chemical properties, including morphology, crystallinity, hydrophobicity and structures of MPs after aging (e.g., ultraviolet treatment) were investigated. Results exhibited that the oxygen-containing functional groups of MPs surface increased after ultraviolet treatment and enhanced the adsorption capacity for SMX, except for PLA. PLA exhibits the highest adsorption capacity, primarily due to its higher hydrophobicity and larger pore size. In contrast, PBS shows the lowest adsorption affinity for SMX because of its hydrophilicity and small pore size. The adsorption capacity of degradable MPs after aging is greater than that of non-degradable MPs. Electrostatic interaction and hydrophobic interaction are the main mechanisms of adsorption of virgin MPs, while hydrogen bond interaction and electrostatic interaction are the primary adsorption mechanisms for aged MPs. These results contribute to understanding the co-transport and migration of SMX and MPs in the environment, and furnish the necessary data for their ecological risk assessment.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"157 ","pages":"Pages 729-741"},"PeriodicalIF":5.9,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124773","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}

引用次数: 0

Engineering surface and subsurface oxygen vacancies of CexZr1-xO2 solid solution for enhanced total toluene oxidation cezr1 - xo2固溶体表面和地下氧空位的工程研究

IF 5.9 2区环境科学与生态学

Journal of Environmental Sciences-china Pub Date : 2025-02-08 DOI: 10.1016/j.jes.2025.02.001

Yang Yu , Mingjia Zhang , Huangang Shi , Jifa Qu , Yongheng Xiong , Wenyi Tan , Xinlei Ge , Qijie Jin

{"title":"Engineering surface and subsurface oxygen vacancies of CexZr1-xO2 solid solution for enhanced total toluene oxidation","authors":"Yang Yu , Mingjia Zhang , Huangang Shi , Jifa Qu , Yongheng Xiong , Wenyi Tan , Xinlei Ge , Qijie Jin","doi":"10.1016/j.jes.2025.02.001","DOIUrl":"10.1016/j.jes.2025.02.001","url":null,"abstract":"<div><div>Most studies have shown that oxygen vacancies on CexZr1-xO2 solid solution are important for enhancing the catalytic oxidation performance. However, a handful of studies investigated the different roles of surface and subsurface oxygen vacancies on the performance and mechanisms of catalysts. Herein, a series of zirconium doping on CeO2 samples (CeO2, Ce0.95Zr0.05O2, and Ce0.85Zr0.15O2) with various surface-to-subsurface oxygen vacancies ratios have been synthesized and applied in toluene catalytic oxidation. The obtained Ce0.95Zr0.05O2 exhibits an excellent catalytic performance with a 90 % toluene conversion at 295 °C, which is 68 °C lower than that of CeO2. Additionally, the obtained Ce0.95Zr0.05O2 catalyst also exhibited good catalytic stability and water resistance. The XRD and HRTEM results show that Zr ions are incorporated into CeO2 lattice, forming CexZr1-xO2 solid solution. Temperature-programmed experiments reveal that Ce0.95Zr0.05O2 shows excellent low-temperature reducibility and abundant surface oxygen species. In-situ DRIFTS tests were used to probe the reaction mechanism, and the function of Zr doping in promoting the activation of oxygen was further determined. Density functional theory (DFT) calculations indicate that the vacancy formation energy and O2 adsorption energy are both lower on Ce0.95Zr0.05O2, confirming the reason for its superior catalytic performance.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"158 ","pages":"Pages 39-49"},"PeriodicalIF":5.9,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178408","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}

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