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Electrochemical removal of ammonium nitrogen in high efficiency and N_(2) selectivity using non-noble single-atomic iron catalyst

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Journal of Environmental Sciences 2023年第3期125卷 544-552页

作者： Fengjiao Quan guangming zhan Bing Zhou Cancan Ling Xiaobing Wang Wenjuan Shen Jianfen Li Falong Jia Lizhi zhang College of Chemical and Environmental Engineering Wuhan Polytechnic UniversityWuhan 430023China Institute of Environmental&Applied Chemistry College of ChemistryCentral China Normal UniversityWuhan 430079China School of Chemistry and Civil Engineering Shaoguan UniversityShaoguan 512005China

Ammonia nitrogen (NH_(4)^(+)-N) is a ubiquitous environmental pollutant,especially in offshore aquaculture *** oxidation is very promising to remove NH_(4)^(+)-N,but suffers from the use of precious metals *** this work,a robust and cheap electrocatalyst,iron single-atoms distributed in nitrogen-doped carbon (Fe-SAs/N-C),was developed for electrochemical removal of NH_(4)^(+)-N from in wastewater containing *** FeSAs/N-C catalyst exhibited superior activity than that of iron nanoparticles loaded carbon(Fe-NPs/N-C),unmodified carbon and conventional Ti/IrO_(2)-TiO_(2)-RuO_(2)*** high removal efficiency (>99%) could be achieved as well as high N_(2)selectivity (99.5%) at low current *** experiments and density functional theory (DFT) calculations demonstrated the indispensable role of single-atom iron in the promoted generation of chloride derived species for efficient removal of NH_(4)^(+)-*** study provides promising inexpensive catalysts for NH_(4)^(+)-N removal in aquaculture wastewater.

关键词： Ammonia nitrogen removal Single-atom iron Non-noble metal catalyst Aquaculture wastewater

Engineering core–shell Co_(9)S_(8)/Co nanoparticles on reduced graphene oxide: Efficient bifunctional Mott–Schottky electrocatalysts in neutral rechargeable Zn–Air batteries

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Journal of Energy Chemistry 2022年第5期31卷 113-123页

作者： Xingkun Wang guangming zhan Yurou Wang Yan zhang Jian Zhou Ren Xu Huiyu Gai Huanlei Wang Heqing Jiang Minghua Huang School of Materials Science and Engineering Ocean University of ChinaQingdao 266100ShandongChina Key Laboratory of Pesticide and Chemical Biology of Ministry of Education Institute of Environmental ChemistryCollege of ChemistryCentral China Normal UniversityWuhan 430079HubeiChina Qingdao Key Laboratory of Functional Membrane Material and Membrane Technology Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101ShandongChina

It is significant for the rational construction of the high–efficient bifunctional electrocatalysts for in–depth understandings of how to improve the electron transfer and ion/oxygen transport in catalyzing oxygen reduction reaction and oxygen evolution reaction(ORR and OER),but still full of vital ***,we synthesize the novel“three–in–one”catalyst that engineers core–shell Mott–Schottky Co_(9)S_(8)/Co heterostructure on the defective reduced graphene oxide(Co_(9)S_(8)/Co–rGO).The Co_(9)S_(8)/Co–rGO catalyst exhibits abundant Mott–Schottky heterogeneous–interfaces,the well–defined core–shell nanostructure as well as the defective carbon architecture,which provide the multiple guarantees for enhancing the electron transfer and ion/oxygen transport,thus boosting the catalytic ORR and OER activities in neutral *** expected,the integrated core–shell Mott–Schottky Co_(9)S_(8)/Co–rGO catalyst delivers the most robust and efficient rechargeable ZABs performance in neutral solution electrolytes accompanied with a power density of 59.5 mW cm^(-2) and superior cycling stability at 5 mA cm^(-2) over 200 *** work not only emphasizes the rational designing of the high–efficient bifunctional oxygen catalysts from the fundamental understanding of accelerating the electron transfer and ion/oxygen transport,but also sheds light on the practical application prospects in more friendly environmentally neutral rechargeable ZABs.

关键词： Oxygen reduction reaction Oxygen evolution reaction Core–shell Mott–Schottky Defective carbon architecture Neutral Zn–air batteries

Symmetry dependent activation and reactivity of peroxysulfates on FeS_(2)(001)surface

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Science Bulletin 2024年第2期69卷 154-158页

作者： Cancan Ling Meiqi Li Hao Li Xiufan Liu guangming zhan Hongwei Sun Chuan Liang Yaling Li Bing Zhou Jincai Zhao Lizhi zhang School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Pesticide&Chemical Biology of Ministry of Education Institute of Environmental&Applied ChemistryCentral China Normal UniversityWuhan 430079China

Heterogeneous peroxysulfates-based advanced oxidation processes(AOPs)have garnered significant attention for purifying organic wastewater since they offer many advantages like low cost,safe storage,facile activation and reactive species participation[1].Nonradical and radical pathways have been proposed to be involved in peroxysulfates activation.

关键词： activation radical reactivity

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新余市装配式建筑产业化发展研究与对策

江西建材 2021年第9期 11-12页

作者：詹光明新余市工业和信息化融合推进中心江西新余338000

文中对新余市装配式建筑产业发展市场情况、装配式建筑发展现状、优势及存在的问题进行了阐述,并提出了相应的改进策略。

关键词：装备式建筑现状分析产业化研究

利用炉底渣生产蒸压粉煤灰砖配合比设计与力学性能研究

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江西建材 2021年第7期 16-18页

作者：詹光明詹梓扬新余市工业和信息化融合推进中心江西新余338000 江西农业大学理学院江西南昌330045

炉底渣是一种工业废渣,其中的粗颗粒可用作制备蒸压粉煤灰砖所需的骨料,细分料含有硅质成分,可替代粉煤灰资源,文中研究了利用炉底渣生产蒸压粉煤灰砖。试验研究结果表明,混合料的消化时间对蒸压粉煤灰砖裂纹控制具有较大影响,消化3h压... 详细信息

炉底渣是一种工业废渣,其中的粗颗粒可用作制备蒸压粉煤灰砖所需的骨料,细分料含有硅质成分,可替代粉煤灰资源,文中研究了利用炉底渣生产蒸压粉煤灰砖。试验研究结果表明,混合料的消化时间对蒸压粉煤灰砖裂纹控制具有较大影响,消化3h压制的试块蒸压后出现“微裂纹”,而消化8h压制的试块未出现裂纹,在生产过程中消化时间一定要充足。砖坯成型压力对抗压强度影响显著,对宜将成型压力控制在20MPa。随着生石灰掺量逐渐增加,试块抗压强度先增大后降低,生石灰内掺掺量宜控制在16%左右。按照设计配比压制试块,蒸压养护后,试块表面未出现裂纹,外观质量较好,出釜抗压达到16.2MPa,浸泡24h测试的抗压强度为15.6MPa,满足MU15级别的产品强度要求,配比中炉底渣掺量达到50%。

关键词：炉底渣蒸压粉煤灰砖配比设计力学性能

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装配式发泡陶瓷自保温复合墙板制备技术研究

江西建材 2021年第9期 28-29,32页

作者：詹光明詹梓扬新余市工业和信息化融合推进中心江西新余338000 江西农业大学江西南昌330045

本项目研发了一种利用工业固废制造的发泡陶瓷材料为面板,用建筑垃圾、粉煤灰等固废做成性能优越的芯材,制备成装配式发泡陶瓷自保温复合墙板,制造节能、节材、环保的装配式墙体材料,为我国工业固废资源化循环利用提供新思路。

关键词：发泡陶瓷保温复合墙板建筑节能工业固体废弃物循环利用

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我国两类PMI与CPI关系的统计检验

统计与决策 2018年第22期34卷 31-35页

作者：詹婷邓光明桂林理工大学理学院广西桂林541004 桂林理工大学应用统计研究所广西桂林541004

文章选取我国制造业和非制造业两类采购经理人指数（PMI）与居民消费价格指数（CPI）的时间序列数据,通过进行协整检验、格兰杰因果检验并建立VEC模型,分析两类PMI与CPI的关系及其影响情况。结果表明：两类PMI指数都是CPI的格兰杰原因,... 详细信息

文章选取我国制造业和非制造业两类采购经理人指数（PMI）与居民消费价格指数（CPI）的时间序列数据,通过进行协整检验、格兰杰因果检验并建立VEC模型,分析两类PMI与CPI的关系及其影响情况。结果表明：两类PMI指数都是CPI的格兰杰原因,反之不成立;两类PMI指数与CPI之间均存在长期稳定的动态均衡关系;比起非制造业采购经理人指数,制造业采购经理人指数短期内对CPI的正向推动作用更强,长期对CPI的影响效率更快,周期更短。

关键词： PMI CPI VEC模型

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超高压技术在粮食产品加工中的应用

农业机械学报 2015年第10期46卷 247-256,297页

作者：于勇潘芳苏光明詹耀朱松明浙江大学生物系统工程与食品科学学院杭州310058

超高压技术是一种非热加工技术,因具有杀菌、保持食品原有营养成分、护色等特点,在食品行业的应用已越来越广泛。目前,超高压技术在粮食产品加工方面的应用发展较快,随着对该技术研究的不断深入,其在粮食产品加工中所发挥的作用也越来... 详细信息

超高压技术是一种非热加工技术,因具有杀菌、保持食品原有营养成分、护色等特点,在食品行业的应用已越来越广泛。目前,超高压技术在粮食产品加工方面的应用发展较快,随着对该技术研究的不断深入,其在粮食产品加工中所发挥的作用也越来越受关注。阐述了国内外超高压技术在粮食产品淀粉改性、蛋白质改性、成分提取、致敏性降低、贮藏(灭菌灭芽)等方面的研究进展,分析了各方面研究结果的意义、应用价值和前景,并对今后应重点关注的研究方向提出了建议。

关键词：粮食产品超高压应用

Quantitative human risk analysis of 2015 Shenzhen dump failure considering influence of urbanization

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Journal of Mountain Science 2021年第6期18卷 1439-1457页

作者： zhanG Shuai LIU Ying BATE Bate PENG Da-lei LI Can zhan Liang-tong MOE Key Laboratory of Soft Soils and Geo-Environmental Engineering Zhejiang UniversityHangzhou 310058China Faculty of Science and Technology Technological and Higher Education Institute of Hong KongHongkong 999077China Department of Civil and Environmental Engineering The Hong Kong University of Science and TechnologyHongkong 999077China

With the rapid development of urbanization, a large amount of construction spoil was stockpiled around cities and formed extensive dumps. Construction spoil is one of the main construction and demolition(C&D) waste and municipal solid waste(MSW). Once the construction spoil dump becomes unstable, it will bring great risks to the surrounding residents. A catastrophic dump failure occurred on 20 December 2015 in guangming New Strict, Shenzhen, China. Approximately 2.51×10^(6) m^(3) of construction waste slid out from the dumpsite, destroying 33 houses and causing total 77 casualties. This paper attempts to analyze the failure probability of the construction spoil dump using Monte Carlo simulation considering the spatial variability of soil properties, and to quantify the dynamic human risk considering the increasing urbanization. Influence of urbanization on the human element at risk is analyzed by referring to multi-temporal remote sensing images. A quantitative human risk assessment model is employed to determine the landslide human risk referring an assessment criteria curve between frequency of number fatalities and number of fatalities(F-N curve). It is found that the societal risk at daytime was 0.078, 0.088, and 1.432 in 2002, 2014, and 2015, respectively. Meanwhile, the societal risk at night was 0.034, 0.037, and 0.611 in 2002, 2014, and 2015, respectively. The quantitative method was benchmarked by the other landfill failure. It implies that the human risk increased with the development of urbanization and its value at daytime was approximately twice as much as at night. The new approach for the human risk assessment provides guidance for modern MSW landfills and highlights the obvious influence of urbanization on the human risk in other areas.

关键词： Construction spoil Dumpsite Slopes Landslides Stability analysis Human risk