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学者姓名：陈晓晨
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Abstract ：
Plant litter is an important input source of carbon and nitrogen in soil. While microplastics (MPs) and plant litter are ubiquitously present in soil, their combined impact on soil biogeochemical processes remains poorly understood. To address this gap, we examined the soil changes resulting from the coexistence of plant litter (Alfalfa) and polyethylene microplastics (PE). The soil changes included physicochemical properties, composition of soil dissolved organic matter, and structure of the soil microbial community. The results showed that the addition of polyethylene (PE) inhibited the degradation of humus-like substances and decreased the quantity of humic acid-like compounds in soil dissolved organic matter (DOM). PE negatively impacted plant litter decomposition, disrupted soil organic carbon (SOC) breakdown, interfered with the nitrogen cycle, and significantly altered microbial community structures during the process. By day 35, SOC and total nitrogen (TN) levels were reduced by 39.8% and 10.1%, respectively, in the presence of PE. Furthermore, PE significantly decreased the abundance of nitrogen-fixing microbes, including Streptomyces (43.1%) and Bacillus (45.9%), which play key roles in nitrate reduction to ammonium. This study highlights the environmental effects of MPs on plant litter decomposition and their potential implications for soil biogeochemical processes. © 2024 Elsevier Ltd
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| GB/T 7714 | Liu, Wanxin , Wang, Yi , Gu, Chunbo et al. Polyethylene microplastics distinctly affect soil microbial community and carbon and nitrogen cycling during plant litter decomposition [J]. | Journal of Environmental Management , 2025 , 373 . |
| MLA | Liu, Wanxin et al. "Polyethylene microplastics distinctly affect soil microbial community and carbon and nitrogen cycling during plant litter decomposition" . | Journal of Environmental Management 373 (2025) . |
| APA | Liu, Wanxin , Wang, Yi , Gu, Chunbo , Wang, Jiao , Dai, Yexin , Maryam, Bushra et al. Polyethylene microplastics distinctly affect soil microbial community and carbon and nitrogen cycling during plant litter decomposition . | Journal of Environmental Management , 2025 , 373 . |
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The production of isolated metallic nanoparticles with multifunctionalized properties, such as size and shape, is crucial for biomedical, photocatalytic, and energy storage or remediation applications. This study investigates the initial particle formations of gold nanoparticles (AuNPs) bioproduced in the cyanobacteria Anabaena sp. using high-resolution transmission electron microscopy images for digital image analysis. The developed method enabled the discovery of cerium nanoparticles (CeNPs), which were biosynthesized in the cyanobacteria Calothrix desertica. The particle size distributions for AuNPs and CeNPs were analyzed. After 10 h, the average equivalent circular diameter for AuNPs was 4.8 nm, while for CeNPs, it was approximately 5.2 nm after 25 h. The initial shape of AuNPs was sub-round to round, while the shape of CeNPs was more roundish due to their amorphous structure and formation restricted to heterocysts. The local PSDs indicate that the maturation of AuNPs begins in the middle of vegetative cells and near the cell membrane, compared to the other regions of the cell.
Keyword ：
Anabaena sp. Anabaena sp. biorecovery biorecovery biosynthesis biosynthesis Calothrix desertica Calothrix desertica digital image analysis digital image analysis TEM TEM
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| GB/T 7714 | Fritz, Melanie , Chen, Xiaochen , Yang, Guifang et al. Gold Nanoparticles Bioproduced in Cyanobacteria in the Initial Phase Opened an Avenue for the Discovery of Corresponding Cerium Nanoparticles [J]. | MICROORGANISMS , 2024 , 12 (2) . |
| MLA | Fritz, Melanie et al. "Gold Nanoparticles Bioproduced in Cyanobacteria in the Initial Phase Opened an Avenue for the Discovery of Corresponding Cerium Nanoparticles" . | MICROORGANISMS 12 . 2 (2024) . |
| APA | Fritz, Melanie , Chen, Xiaochen , Yang, Guifang , Lv, Yuancai , Liu, Minghua , Wehner, Stefan et al. Gold Nanoparticles Bioproduced in Cyanobacteria in the Initial Phase Opened an Avenue for the Discovery of Corresponding Cerium Nanoparticles . | MICROORGANISMS , 2024 , 12 (2) . |
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Arsenic (As)-contaminated soil poses great health risk to human mostly through inadvertent oral exposure. We investigated CaAl-layered double hydroxide (CaAl-LDH), a promising immobilising agent, for the remediation of As-contaminated Chinese soils. The effects on specific soil properties and As fractionation were analyzed, and changes in the health risk of soil As were accurately assessed by means of advanced in vivo mice model and in vitro PBET-SHIME model. Results showed that the application of CaAl-LDH significantly increased soil pH and concentration of Fe and Al oxides, and effectively converted active As fractions into the most stable residual fraction, guaranteeing long-term remediation stability. Based on in vivo test, As relative bioavailability was significantly reduced by 37.75%. Based on in vitro test, As bioaccessibility in small intestinal and colon phases was significantly reduced by 25.65% and 28.57%, respectively. Furthermore, As metabolism (reduction and methylation) by the gut microbiota inhabiting colon was clearly observed. After immobilisation with CaAl-LDH, the concentration of bioaccessible As(V) in the colon fluid was significantly reduced by 61.91%, and organic As (least toxic MMA(V) and DMA(V)) became the main species, which further reduced the health risk of soil As. In summary, CaAl-LDH proved to be a feasible option for immobilisation remediation of As -contaminated soils, and considerable progress was made in relevant health risk assessment.
Keyword ：
Arsenic Arsenic CaAl-layered double hydroxide CaAl-layered double hydroxide Health risk Health risk Immobilisation Immobilisation Soil remediation Soil remediation
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| GB/T 7714 | Chen, Xiao-Chen , Huang, Zhen-Jia , Wang, Ao et al. Immobilisation remediation of arsenic-contaminated soils with promising CaAl-layered double hydroxide and bioavailability, bioaccessibility, and speciation-based health risk assessment [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 469 . |
| MLA | Chen, Xiao-Chen et al. "Immobilisation remediation of arsenic-contaminated soils with promising CaAl-layered double hydroxide and bioavailability, bioaccessibility, and speciation-based health risk assessment" . | JOURNAL OF HAZARDOUS MATERIALS 469 (2024) . |
| APA | Chen, Xiao-Chen , Huang, Zhen-Jia , Wang, Ao , Yu, Jian-Ying , Zhang, Jian-Yu , Xiao, Zi-Jun et al. Immobilisation remediation of arsenic-contaminated soils with promising CaAl-layered double hydroxide and bioavailability, bioaccessibility, and speciation-based health risk assessment . | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 469 . |
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Dissolved organic matter (DOM) is important in determining the drinking water treatment and the supplied water quality. However, a comprehensive DOM study for the whole water supply system is lacking and the potential effects of secondary water supply are largely unknown. This was studied using dissolved organic carbon (DOC), absorption spectroscopy, and fluorescence excitation -emission matrices -parallel factor analysis (EEMPARAFAC). Four fluorescent components were identified, including humic-like C1-C2, tryptophan-like C3, and tyrosine -like C4. In the drinking water treatment plants, the advanced treatment using ozone and biological activated carbon (O3-BAC) was more effective in removing DOC than the conventional process, with the removals of C1 and C3 improved by 17.7%-25.1% and 19.2%-27.0%. The absorption coefficient and C1-C4 correlated significantly with DOC in water treatments, suggesting that absorption and fluorescence could effectively track the changes in bulk DOM. DOM generally remained stable in each drinking water distribution system, suggesting the importance of the treated water quality in determining that of the corresponding network. The optical indices changed notably between distribution networks of different treatment plants, which enabled the identification of changing water sources. A comparison of DOM in the direct and secondary water supplies suggested limited impacts of secondary water supply, although the changes in organic carbon and absorption indices were detected in some locations. These results have implications for better understanding the changes of DOM in the whole water supply system to help ensure the supplied water quality.
Keyword ：
Dissolved organic matter Dissolved organic matter Drinking water treatment Drinking water treatment Fluorescence excitation -emission matrices Fluorescence excitation -emission matrices Parallel factor analysis Parallel factor analysis Water supply system Water supply system
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| GB/T 7714 | Lin, Jinjin , Yang, Liyang , Zhuang, Wan-E et al. Tracking the changes of dissolved organic matter throughout the city water supply system with optical indices [J]. | JOURNAL OF ENVIRONMENTAL MANAGEMENT , 2024 , 358 . |
| MLA | Lin, Jinjin et al. "Tracking the changes of dissolved organic matter throughout the city water supply system with optical indices" . | JOURNAL OF ENVIRONMENTAL MANAGEMENT 358 (2024) . |
| APA | Lin, Jinjin , Yang, Liyang , Zhuang, Wan-E , Wang, Yue , Chen, Xiaochen , Niu, Jia . Tracking the changes of dissolved organic matter throughout the city water supply system with optical indices . | JOURNAL OF ENVIRONMENTAL MANAGEMENT , 2024 , 358 . |
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Whether coexisting microplastics (MPs) affect the ecological and health risks of cadmium (Cd) in soils is a cutting-edge scientific issue. In this study, four typical Chinese soils were prepared as artificially Cdcontaminated soils with/without aged polystyrene (PS). TCLP and in vitro PBET model were used to determine the leachability (ecological risk) and oral bioaccessibility (human health risk) of soil Cd. The mechanisms by which MPs influence soil Cd were discussed from direct and indirect perspectives. Results showed that there was no significant difference in the leachability of soil Cd with/without aged PS. Additionally, aged PS led to a significant decrease in the bioaccessibility of soil Cd in gastric phase, but not in small intestinal phase. The increase in surface roughness and the new characteristic peaks (e.g., Si -O -Si) of aged PS directly accounted for the change in Cd bioaccessibility. The change in organic matter content indirectly accounted for the exceptional increase in Cd bioaccessibility of black soil with aged PS in small intestinal phase. Furthermore, the changes in cation exchange capacity and Cd mobility factor caused by aged PS explained the change in Cd leachability. These results contribute to a deeper understanding about environmental and public health in complicated emerging scenarios.
Keyword ：
Bioaccessibility Bioaccessibility Cd Cd in vitro test in vitro test Leachability Leachability Microplastics Microplastics
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| GB/T 7714 | Chen, Xiao-Chen , Wang, Ao , Wang, Jun-Jie et al. Influences of coexisting aged polystyrene microplastics on the ecological and health risks of cadmium in soils: A leachability and oral bioaccessibility based study [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 469 . |
| MLA | Chen, Xiao-Chen et al. "Influences of coexisting aged polystyrene microplastics on the ecological and health risks of cadmium in soils: A leachability and oral bioaccessibility based study" . | JOURNAL OF HAZARDOUS MATERIALS 469 (2024) . |
| APA | Chen, Xiao-Chen , Wang, Ao , Wang, Jun-Jie , Zhang, Zeng-Di , Yu, Jian-Ying , Yan, Ying-Jie et al. Influences of coexisting aged polystyrene microplastics on the ecological and health risks of cadmium in soils: A leachability and oral bioaccessibility based study . | JOURNAL OF HAZARDOUS MATERIALS , 2024 , 469 . |
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Microplastics (MPs) have been widely found in the environment and have exerted non-negligible impacts on the environment and human health. Extensive research has shown that MPs can act as carriers for viruses and interacts with them in various ways. Whether MPs influence the persistence, transmission and infectivity of virus has attracted global concern in the context of increasing MPs contamination. This review paper provides an overview of the current state of knowledge regarding the interactions between MPs and viruses in aquatic environments. Latest progress and research trends in this field are summarized based on literature analysis. Additionally, we discuss the potential risks posed by microplastic-associated viruses to human health and the environmental safety, highlighting that MPs can affect viral transmission and infectivity through various pathways. Finally, we underscores the need for further research to address key knowledge gaps, such as elucidating synergistic effects between MPs and viruses, understanding interactions under real environmental conditions, and exploring the role of biofilms in virus–MPs interactions. This review aims to contribute to a deeper understanding on the transmission of viruses in the context of increasing MPs pollution in water, and promote actions to reduce the potential risks. Copyright © 2024 Wang, Zheng, Wang, Hou, He, Wang, Zhang, Chen and Liu.
Keyword ：
adsorption adsorption impact impact mechanism mechanism microplastics microplastics viruses viruses
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| GB/T 7714 | Wang, X. , Zheng, K. , Wang, Y. et al. Microplastics and viruses in the aquatic environment: a mini review [未知]. |
| MLA | Wang, X. et al. "Microplastics and viruses in the aquatic environment: a mini review" [未知]. |
| APA | Wang, X. , Zheng, K. , Wang, Y. , Hou, X. , He, Y. , Wang, Z. et al. Microplastics and viruses in the aquatic environment: a mini review [未知]. |
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针对低温时饮用水深度处理工艺生物活性炭（BAC）无法高效去除水中氨氮的问题，选用实际水厂运行中的BAC搭建滤柱连续培养反应器，通过室内控制实验，对比常温和低温下不同层BAC的氨氮去除效果及其硝化潜势，并运用分子生物学技术解析BAC上氨氧化古菌（AOA）和氨氧化细菌（AOB）的群落丰度和群落结构。结果表明，尽管低温时BAC各层去除氨氮的效率低于常温，但在一个反冲洗周期的后段仍能够达到常温时的氨氮去除效果，且其硝化潜势高于常温。低温下BAC上氨氧化微生物丰度高于常温，且AOA的数量变化最大（增加2个数量级）。针对功能基因amoA的T-RFLP分析发现，A-OTU2和A-OTU3以及B-OTU5分别为低温下主导的AOA和AOB。今后应更加关注低温下AOA及特定菌种在BAC上的定植及活性促进问题。
Keyword ：
氨氧化古菌 氨氧化古菌 氨氧化细菌 氨氧化细菌 氨氮 氨氮 温度 温度 生物活性炭 生物活性炭 群落结构 群落结构
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| GB/T 7714 | 牛佳 , 余爽 , 汤旸旸 et al. 温度影响BAC去除饮用水中氨氮的生物学机理 [J]. | 中国给水排水 , 2024 , 40 (15) : 44-49 . |
| MLA | 牛佳 et al. "温度影响BAC去除饮用水中氨氮的生物学机理" . | 中国给水排水 40 . 15 (2024) : 44-49 . |
| APA | 牛佳 , 余爽 , 汤旸旸 , 黄怡婷 , 龚珑聪 , 王悦 et al. 温度影响BAC去除饮用水中氨氮的生物学机理 . | 中国给水排水 , 2024 , 40 (15) , 44-49 . |
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advanced technologies/systems advanced technologies/systems conventional contaminants conventional contaminants emerging contaminants emerging contaminants environmental engineering environmental engineering microorganisms microorganisms municipal engineering municipal engineering
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| GB/T 7714 | Chen, Xiaochen , Kasuga, Ikuro , Liu, Xianhua et al. New insight into the roles of microorganisms in municipal and environmental engineering technologies/systems [J]. | FRONTIERS IN MICROBIOLOGY , 2024 , 14 . |
| MLA | Chen, Xiaochen et al. "New insight into the roles of microorganisms in municipal and environmental engineering technologies/systems" . | FRONTIERS IN MICROBIOLOGY 14 (2024) . |
| APA | Chen, Xiaochen , Kasuga, Ikuro , Liu, Xianhua , Li, Hongbo , Zeng, Ming , Cai, Xiaolin . New insight into the roles of microorganisms in municipal and environmental engineering technologies/systems . | FRONTIERS IN MICROBIOLOGY , 2024 , 14 . |
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通过静态吸附实验探究了氧化铜纳米颗粒(CuO NPs)在土壤中的吸附特性,包括其初始浓度、土壤性质以及pH值值对土壤吸附CuO NPs的影响,并探索了共存的有机污染物(菲)和CuO NPs之间的相互作用以及菲对土壤吸附CuO NPs的影响.结果表明,CuO NPs在土壤中的吸附过程符合伪二级反应动力学模型;腐殖酸和有机质对CuO NPs的溶解和稳定作用使得土壤对CuO NPs的吸附量较低;pH值为中性的条件下,土壤对CuO NPs的吸附量最低;菲的存在占据了部分吸附位点而降低了土壤对CuO NPs的吸附量,初始浓度为30和50mg/L的CuO NPs的平衡吸附量分别降低了37.3%和24.7%,但菲的存在并不影响土壤对CuO NPs的吸附过程.
Keyword ：
吸附 吸附 土壤 土壤 影响因素 影响因素 氧化铜 氧化铜 纳米颗粒 纳米颗粒
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| GB/T 7714 | 陈晓晨 , 张春鹏 , 袁梓芮 et al. 氧化铜纳米颗粒在土壤中的吸附特性及影响因素 [J]. | 中国环境科学 , 2023 , 43 (08) : 4121-4126 . |
| MLA | 陈晓晨 et al. "氧化铜纳米颗粒在土壤中的吸附特性及影响因素" . | 中国环境科学 43 . 08 (2023) : 4121-4126 . |
| APA | 陈晓晨 , 张春鹏 , 袁梓芮 , 王锴瑜 , 张剑宇 , 杨朝格 . 氧化铜纳米颗粒在土壤中的吸附特性及影响因素 . | 中国环境科学 , 2023 , 43 (08) , 4121-4126 . |
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畜禽沼液不仅含有高浓度氨氮、总磷、难降解有机物以及重金属和抗生素等风险因子，同时也存在大量有效氮、磷、钾等营养成分，未经过适当处理的沼液直接排放极容易造成水体的富营养化、土壤酸化和污染物累积等生态环境问题，加上沼液极具资源化潜力，因此对其进行有效的处理与资源再利用对于促进可持续发展具有重要意义。微藻细菌共生系统（藻菌共生系统）作为一种新兴的沼液处理方式，得到了广泛关注与研究。相较于传统的沼液处理方法，藻菌共生系统具有低成本、高效率、环境友好等优点，其不仅可高效去除沼液中的氮、磷、重金属、抗生素等物质，而且能同步利用CO_2进行光合作用，产生具有生物燃料潜质的微藻生物质，应用前景广阔。该文分析总结了藻菌共生系统的共生机制，概括了其类型，系统解析了其去除沼液污染物的机理，并重点阐述了藻菌共生系统的影响因素，最后讨论和展望了该系统所面临的挑战与未来的发展方向，以期为基于藻菌共生系统的沼液规模化处理及利用提供理论指导。
Keyword ：
光生物反应器 光生物反应器 共生机制 共生机制 污染物 污染物 沼液 沼液 环境因素 环境因素 脱氮除磷 脱氮除磷 藻菌共生 藻菌共生 藻菌配比 藻菌配比
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| GB/T 7714 | 陈彪 , 朱勇 , 王锴瑜 et al. 藻菌共生系统处理畜禽沼液的机制及影响因素研究进展 [J]. | 农业工程学报 , 2023 , 39 (13) : 14-24 . |
| MLA | 陈彪 et al. "藻菌共生系统处理畜禽沼液的机制及影响因素研究进展" . | 农业工程学报 39 . 13 (2023) : 14-24 . |
| APA | 陈彪 , 朱勇 , 王锴瑜 , 肖艳春 , 黄婧 , 张剑宇 et al. 藻菌共生系统处理畜禽沼液的机制及影响因素研究进展 . | 农业工程学报 , 2023 , 39 (13) , 14-24 . |
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