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期刊论文 9

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内球配位 1

再生 1

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口罩 1

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新冠病毒肺炎 1

硫酸根离子 1

纳米尺寸效应 1

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Recent advances in electrochemical decontamination of perfluorinated compounds from water: a review

《环境科学与工程前沿（英文）》 2023年 第17卷 第2期 doi: 10.1007/s11783-023-1618-z

摘要：

● Recent advances in the electrochemical decontamination of PFAS are reviewed.

关键词： Perfluorinated compounds     Electrochemical approach     Working mechanisms     Impacting factor     Coupled process    

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Hierarchical porous metal-organic frameworks/polymer microparticles for enhanced catalytic degradation of organic contaminants

《化学科学与工程前沿（英文）》 2022年 第16卷 第6期   页码 939-949 doi: 10.1007/s11705-022-2152-4

摘要： This work reports on a simple microfluidic strategy to controllably fabricate uniform polymeric microparticles containing hierarchical porous structures integrated with highly accessible catalytic metal organic frameworks for efficient degradation of organic contaminants. Monodisperse (W1/O)/W2 emulsion droplets generated from microfluidics are used as templates for the microparticle synthesis. The emulsion droplets contain tiny water microdroplets from homogenization and water nanodroplets from diffusion-induced swollen micelles as the dual pore-forming templates, and Fe-based metal-organic framework nanorods as the nanocatalysts. The obtained microparticles possess interconnected hierarchical porous structures decorated with highly accessible Fe-based metal-organic framework nanorods for enhanced degradation of organic contaminants via a heterogeneous Fenton-like reaction. Such a degradation performance is highlighted by using these microparticles for efficient degradation of rhodamine B in hydrogen peroxide solution. This work provides a simple and general strategy to flexibly combine hierarchical porous structures and catalytic metal-organic frameworks to engineer advanced microparticles for water decontamination.

关键词： metal-organic framework     polymer microparticle     nanocatalyst     decontamination     organic contaminant    

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Decontamination of Cr(VI) facilitated formation of persistent free radicals on rice husk derived biochar

Kaikai Zhang, Peng Sun, Yanrong Zhang

《环境科学与工程前沿（英文）》 2019年 第13卷 第2期 doi: 10.1007/s11783-019-1106-7

摘要：

PFRs were produced on biochar during Cr(VI) decontamination.

PFRs formation on biochar was owing to the oxidization of phenolic-OH by Cr(VI).

Appearance of excessive oxidant led to the consumption of PFRs on biochar.

Biochar charred at high temperature possessed great performance to Cr(VI) removal.

关键词： Biochar     Persistent free radicals     Phenolic hydroxyl groups     Cr(VI) reduction    

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新冠病毒肺炎疫情期间口罩能否经热水泡灭毒后重复使用？ Article

王丹, 孙宝昌, 王洁欣, 周芸芸, 陈倬为, 方彦, 岳卫华, 刘思敏, 刘克洋, 曾晓飞, 初广文, 陈建峰

《工程（英文）》 2020年 第6卷 第10期   页码 1115-1121 doi: 10.1016/j.eng.2020.05.016

摘要：

新冠病毒肺炎疫情期间，口罩成为不可或缺的防控利器和战略物资。如何科学、安全、有效地重复 使用口罩，让每一只口罩发挥最大效能，数倍甚至十倍以上地提高防护口罩的有效使用时间，是疫情防控所急需解决的关键科技问题。我们提出了“口罩荷电再生重复使用”的技术方法，并开展了再生口罩性能评价。首先将使用后的口罩浸泡在56 °C以上热水中30 min进行消毒处理，随后采用普通家用电吹风机等对“失效”的口罩进行吹干荷电处理，使口罩可重新荷电而再生静电效应。 对市售的三类典型口罩（一次性医用口罩、医用外科口罩、KN95级防护口罩）进行“热水泡灭毒 +荷电再生”处理，实验证明其过滤层微观结构和口罩抗渗水性均无明显变化，再生口罩对非油性 颗粒物的过滤效率满足相关口罩指标要求。相关研究结果为新冠病毒肺炎疫情期间的口罩荷电再 生重复使用提供了参考。进一步研究了真人佩戴过程对不同初始性能的口罩的性能演变。浙江闰土股份有限公司在2月20日至3月30日期间应用“口罩荷电再生重复使用技术”，将原先每个员工每 日发放一个一次性医用口罩，改为每个员工每三日发放一个一次性医用口罩，节约口罩12.25万只， 降低了公司的口罩使用量，也确保了防疫工作的正常开展。本文基于真实佩戴口罩的研究，建立了基于荧光纳米颗粒渗透探伤的口罩检测新方法，为可重复使用口罩材料设计、结构优化和性能综合评价提供参考。

关键词： 口罩     可重复使用     新冠病毒肺炎     净化     绿色发展    

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Bismuth oxide-related photocatalysts in green nanotechnology: A critical analysis

Andrea P. Reverberi, P.S. Varbanov, M. Vocciante, B. Fabiano

《化学科学与工程前沿（英文）》 2018年 第12卷 第4期   页码 878-892 doi: 10.1007/s11705-018-1744-5

摘要： A survey addressing the uses of bismuth oxide in photocatalysis is presented. The richness of literature on such a specific topic proves the growing importance of this compound as a valid tool in pollution abatement and environmental decontamination. Many research groups have focused their activity on how to improve the photocatalytic properties of this semiconductor and several solutions have been adopted in the synthesis method, often based on wet-chemical processes. The impressive development of nanoscience helped in understanding and identifying process variables and operative conditions aiming at optimizing the yield of this promising photocatalytic material in the utilization of solar energy.

关键词： photocatalysis     visible light     bismuth compounds     nanotechnology     environmental remediation     decontamination     pollution abatement    

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Decontamination efficiency and root structure change in the plant-intercropping model in vertical-flow

Yonghua CHEN, Xiaofu WU, Mingli CHEN, Kelin LI, Jing PENG, Peng ZHAN

《环境科学与工程前沿（英文）》 2013年 第7卷 第6期   页码 906-912 doi: 10.1007/s11783-013-0579-z

摘要： Subtropical climatic conditions can contribute to the death of the aerial parts of constructed wetland plants in winter. This presents a barrier to the widespread application of constructed wetland and is an issue that urgently needs to be solved. Three contrasting experiments, the plant-intercropping model (A), the warm-seasonal plant model (B), and the non-plant model (C), were studied in terms of their efficiency in removing pollutants, and the change in root structure of plants in the plant-intercropping model within the vertical-flow constructed wetlands. The results indicate that model A was able to solve the aforementioned problem. Overall, average removal rates of three pollutants (COD , total nitrogen (TN) and total phosphorous (TP)) using model A were significantly higher than those obtained using models B and C ( <0.01). Moreover, no significant differences in removal rates of the three pollutants were detected between A and B during the higher temperature part of the year ( >0.05). Conversely, removal rates of the three pollutants were found to be significantly higher using model A than those observed using model B during the lower temperature part of the year ( <0.01). Furthermore, the morphologies and internal structures of plant roots further demonstrate that numerous white roots, whose distribution in soil was generally shallow, extend further under model A. The roots of these aquatic plants have an aerenchyma structure composed of parenchyma cells, therefore, roots of the cold-seasonal plants with major growth advantages used in A were capable of creating a more favorable vertical-flow constructed wetlands media-microenvironment. In conclusion, the plant-intercropping model (A) is more suitable for use in the cold environment experienced by constructed wetland during winter.

关键词： vertical-flow constructed wetlands     plant intercropping model     warm seasonal plant model    

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流体电化学靶向诱生硫酸根自由基降解水中微污染物 Article

郑文天, 尤世界, 姚远, 任南琪, 丁彬, 李方, 刘艳彪

《工程（英文）》 2023年 第30卷 第11期   页码 144-152 doi: 10.1016/j.eng.2022.12.005

摘要：

水中微污染物的深度去除是环境工程领域的重大挑战。受限于低浓度和高毒性等污染特征，传统水处理策略难以实现这类污染物的有效去除。基于此，本文提出了流体电化学靶向诱生硫酸根自由基（SO4•–）的研究设想，通过构筑穿透式电化学反应系统，实现了阳极将硫酸根离子（SO42−）氧化生成过硫酸根（S2O82−），再通过阴极还原反应将S2O82−转化为SO4•–。开展了流体电化学系统构造原理、硫酸根自由基靶向生成机制和微污染物降解机理等相关研究。结果表明，在最优实验条件下，该系统可在单次流模式下实现苯胺的高效降解（100%）和总有机碳的有效去除（65.0%）。该系统在宽pH范围内和复杂水基质条件下均能实现多种微污染物的有效去除。本工作基于“以废治废”理念，结合了膜分离和电化学的技术优势，有望为水中微污染物的深度去除提供一种潜在可行的技术选择。

关键词： 高级氧化     链式反应     硫酸根离子     微污染物     顺序电化学体系    

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Decontamination of mobile phones and electronic devices for health care professionals using a chlorhexidine

Rafael Muniz de Oliveira, Nereida Mello da Rosa Gioppo, Jancineide Oliveira de Carvalho, Francilio Carvalho Oliveira, Thomas Jay Webster, Fernanda Roberta Marciano, Anderson Oliveira Lobo

《化学科学与工程前沿（英文）》 2019年 第13卷 第1期   页码 192-198 doi: 10.1007/s11705-018-1728-5

摘要： Though they reduce microorganism growth, current hospital disinfectants also damage many of today’s modern electronic devices such as tablets and smartphones. Herein, the efficacy of a new chlorhexidine digluconate gel (CDG) was tested as a disinfectant for mobile and electronic devices in a clinical environment. Specifically, , , and methicillin resistant were used to infect the screen of eight smartphones. The CDG was prepared at concentrations of 2%, 4% and 6%, and tested on paper disks infected with these bacteria before being tested on the smartphones. The devices were disinfected with the CDG gel (4%) at two times: immediately and after 5 min of the bacterial contamination. In all cases, the CDG gel eliminated 100% of gram-positive and gram-negative microorganisms compared to the control (without any agent). In addition, the gel did not damage the smartphones. Therefore, our study suggests that the CDG gel may be applied to disinfect a wide range of electronic devices for health care professionals in the hospital environment.

关键词： smartphones     disinfection     clinical environment     chlorhexidine     bacteria    

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利用商用凝胶型离子交换树脂实现超微纳米颗粒的大规模生产与高效水处理 Article

程思凯, 钱杰书, 张孝林, 鲁振达, 潘丙才

《工程（英文）》 2023年 第23卷 第4期   页码 149-156 doi: 10.1016/j.eng.2021.09.010

摘要：

纳米技术为深度水处理提供了新的机遇。然而，高活性超微（<5 nm）纳米颗粒材料的大规模生产仍存在挑战，且超微材料在实际水处理中也存在操作困难等问题，阻碍了纳米技术在水污染控制领域的推广应用。针对这些问题，我们提出了一种简便的解决方法，即以商用凝胶型离子交换树脂N201 为载体合成超微纳米颗粒。N201 是一种季铵化的毫米级聚（苯乙烯二乙烯基苯共聚）小球。在N201 中通过简单的浸渍-沉淀获得了水合氧化铁（HFO）、水合氧化锰（HMO）、硫化镉（CdS）和零价铁（ZVI）等纳米颗粒，所有纳米颗粒的尺寸都小于5 nm。中试生产表明该合成方法方便放大，并制备了大量亚5 nm HFO颗粒。关于超微纳米颗粒的合成机理，我们认为每个在水中溶胀的N201 小球内都包含连续均匀水相，使反应物可快速地扩散到树脂球内部（7 s 内从小球表面扩散到中心），从而实现纳米颗粒的爆发成核，形成超窄尺寸分布的晶核。此外，交联聚合物链间还可形成狭窄的孔隙（直径<5 nm），可防止在其中形成的纳米颗粒过度生长。由于N201 载体具有毫米级尺寸，所制备的复合纳米材料可方便用于连续流装置中。批次实验和柱吸附测试表明，超微HFO颗粒对As(III/V)的吸附性能比约17 nm的HFO显著增强。本研究有望进一步促进纳米技术在实际水处理中的推广应用。

关键词： 纳米尺寸效应     纳米限域     吸附     内球配位     再生    

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标题 作者 时间 类型 操作

Recent advances in electrochemical decontamination of perfluorinated compounds from water: a review

期刊论文

Hierarchical porous metal-organic frameworks/polymer microparticles for enhanced catalytic degradation of organic contaminants

期刊论文

Decontamination of Cr(VI) facilitated formation of persistent free radicals on rice husk derived biochar

Kaikai Zhang, Peng Sun, Yanrong Zhang

期刊论文

新冠病毒肺炎疫情期间口罩能否经热水泡灭毒后重复使用？

王丹, 孙宝昌, 王洁欣, 周芸芸, 陈倬为, 方彦, 岳卫华, 刘思敏, 刘克洋, 曾晓飞, 初广文, 陈建峰

期刊论文

Bismuth oxide-related photocatalysts in green nanotechnology: A critical analysis

Andrea P. Reverberi, P.S. Varbanov, M. Vocciante, B. Fabiano

期刊论文

Decontamination efficiency and root structure change in the plant-intercropping model in vertical-flow

Yonghua CHEN, Xiaofu WU, Mingli CHEN, Kelin LI, Jing PENG, Peng ZHAN

期刊论文

流体电化学靶向诱生硫酸根自由基降解水中微污染物

郑文天, 尤世界, 姚远, 任南琪, 丁彬, 李方, 刘艳彪

期刊论文

Decontamination of mobile phones and electronic devices for health care professionals using a chlorhexidine

Rafael Muniz de Oliveira, Nereida Mello da Rosa Gioppo, Jancineide Oliveira de Carvalho, Francilio Carvalho Oliveira, Thomas Jay Webster, Fernanda Roberta Marciano, Anderson Oliveira Lobo

期刊论文

利用商用凝胶型离子交换树脂实现超微纳米颗粒的大规模生产与高效水处理

程思凯, 钱杰书, 张孝林, 鲁振达, 潘丙才

期刊论文