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Synergistically S/N self-doped biochar as a green bifunctional cathode catalyst in electrochemical degradation of organic pollutant

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Green Energy & Environment 2025年第1期10卷 214-230页

作者： Xuechun Wang Huizhong Wu Jiana Jing Ge Song Xuyang Zhang Minghua Zhou Raf Dewil Key Laboratory of Pollution Process and Environmental Criteria Ministry of EducationCollege of Environmental Science and EngineeringNankai UniversityTianjin300350China Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution Nankai UniversityTianjin300350China Tianjin Advanced Water Treatment Technology international Joint Research Center College of Environmental Science and EngineeringNankai UniversityTianjin300350China department of Chemical Engineering KU LeuvenJ.De Nayerlaan 5Sint-Katelijne-Waver B2860Belgium

Biomass-derived heteroatom self-doped cathode catalysts has attracted considerable interest for electrochemical advanced oxidation processes(EAOPs)due to its high performance and sustainable ***,we illustrated the morphological fates of waste leaf-derived graphitic carbon(WLGC)produced from waste ginkgo leaves via pyrolysis temperature regulation and used as bifunctional cathode catalyst for simultaneous H_(2)O_(2) electrochemical generation and organic pollutant degradation,discovering S/N-self-doping shown to facilitate a synergistic effect on reactive oxygen species(ROS)*** the optimum temperature of 800℃,the WLGC exhibited a H_(2)O_(2) selectivity of 94.2%and tetracycline removal of 99.3%within 60 *** functional theory calculations and in-situ Fourier transformed infrared spectroscopy verified that graphitic N was the critical site for H_(2)O_(2) *** pyridinic N and thiophene S were the main active sites responsible for_OH generation,N vacancies were the active sites to produce ^(1)O_(2) from *** performance of the novel cathode for tetracycline degradation remains well under a wide pH range(3–11),maintaining excellent stability in 10 *** is also industrially applicable,achieving satisfactory performance treating in real water *** system facilitates both radical and non-radical degradation,offering valuable advances in the preparation of cost-effective and sustainable electrocatalysts and hold strong potentials in metal-free EAOPs for organic pollutant degradation.

关键词： Biochar S and N self-doping H_(2)O_(2)production In-situ FTIR Metal-free electrochemical advanced oxidation processes

Scalable Ir‑Doped NiFe_(2)O_(4)/TiO_(2)Heterojunction Anode for Decentralized Saline Wastewater Treatment and H_(2)Production

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Nano-Micro Letters 2025年第3期17卷 1-18页

作者： Sukhwa Hong Jiseon Kim Jaebeom Park Sunmi Im Michael R.Hoffmann Kangwoo Cho Division of Environmental Science and Engineering Pohang University of Science and Technology(POSTECH)Pohang 790−784Korea Linde Laboratory California Institute of TechnologyPasadenaCA 91125USA Institute for Convergence Research and Education in Advanced Technology(I‑CREATE) Yonsei University International CampusIncheon 21983Republic of Korea

Wastewater electrolysis cells(WECs)for decentralized wastewater treatment/reuse coupled with H_(2)production can reduce the carbon footprint associated with transportation of water,waste,and energy *** study reports Ir-doped NiFe_(2)O_(4)(NFI,~5 at%Ir)spinel layer with TiO_(2)overlayer(NFI/TiO_(2)),as a scalable heterojunction anode for direct electrolysis of wastewater with circumneutral pH in a single-compartment *** dilute(0.1 M)NaCl solutions,the NFI/TiO_(2)marks superior activity and selectivity for chlorine evolution reaction,outperforming the benchmark IrO_(2).Robust operation in near-neutral pH was *** including operando X-ray absorption spectroscopy unveiled crucial roles of TiO_(2) which serves both as the primary site for Cl−chemisorption and a protective layer for NFI as an ohmic *** electrolysis of NH4+-laden synthetic wastewater demonstrated that NFI/TiO_(2)not only achieves quasi-stoichiometric NH_(4)^(+)-to-N_(2)conversion,but also enhances H_(2)generation efficiency with minimal competing reactions such as reduction of dissolved oxygen and reactive *** scaled-up WEC with NFI/TiO_(2)was demonstrated for electrolysis of toilet wastewater.

关键词： Wastewater electrolysis cell Ir-doped NiFe_(2)O_(4) Reactive chlorine species Decentralized H_(2)production On-site wastewater treatment

Effects of in-plane stiffness and charge transfer on thermal expansion of monolayer transition metal dichalcogenide

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Chinese Physics B 2015年第2期24卷 343-349页

作者：王占雨周艳丽王雪青王飞孙强郭正晓贾瑜 international Joint Research Laboratory for Quantum Functional Materials of Henan Zhengzhou University School of Physics and Engineering Zhengzhou University department of Mechanical and Electrical Engineering Henan Industry and Trade Vocational College department of Chemistry University College London

The temperature dependence of lattice constants is studied by using first-principles calculations to determine the effects of in-plane stiffness and charge transfer on the thermal expansions of monolayer semiconducting transition metal *** the corresponding bulk material,our simulations show that monolayer MX2（M = Mo and W;X = S,Se,and Te） exhibits a negative thermal expansion at low temperatures,induced by the bending *** transition from contraction to expansion at higher temperatures is ***,the thermal expansion can be tailored regularly by alteration of the M or X *** analysis shows that the positive thermal expansion coefficient is determined mainly by the in-plane stiffness,which can be expressed by a simple *** the regularity of this change can be attributed to the difference in charge transfer between the different *** findings should be applicable to other two-dimensional systems.

关键词： transition metal dichalcogenide thermal expansion phonon

Growth Slowdown in China since 2008： Will There Be a Hard Landing in the Near Future？

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China & World Economy 2015年第3期23卷 42-58页

作者： Pingyao Lai ＊Pingyao Lai Professor School of International Trade and Economics University of International Business and Economics Beijing China

China has wimessed an unprecedented great leap forward in investment since the 2008 global financial crisis, and at the same time real GDP growth has undergone a significant slowdown. This paper examines China＇s growth slowdown since 2008 up to 2013 using a growth accounting model in a systematic way. It is found that China ＂s growth slowdown since 2008 almost completely comes from a sharp slowdown in total factor productivity growth. During this period, the positive effect on growth from expanding investment has been completely offset by the negative effect of the slowdown in total factor productivity growth. Currently, China＇s economy has slid into the Solow downward path. Under these circumstances, a soft landing is completely infeasible. Unless the Chinese Government implements substantial rebalancing and comprehensive and in-depth market-oriented reform, accompanied by large-scale de-investment （decreasing in the ratio of investment in GDP） and massive employment adjustment, China will be unable to avoid the Solow downward path, and a hard landing in investment will be inevitable in the near future.

关键词： China expanding investment growth accounting hard landing soft landing total factor productivity

Countermeasures of China under the Trend of Consumption internationalization

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China Finance and Economic Review 2022年第1期11卷 113-128页

作者： Wei Liang Lixin Guan Institute of Circulation and Consumption of the Chinese Academy of international trade and Economic Cooperation

With improvement of China’s economic development and integration into the globalization,the increasing international infl uence of China’s consumer market,and progressing consumption upgrading,the internationalization of the subject,object and carrier of China’s consumer market is becoming more and more *** on a theoretical review of consumption internationalization,this paper defi nes the connotation of consumption internationalization,and summarizes the characteristics and the problems of China’s current consumption internationalization.A series of policy suggestions are provided,including a more abundant supply of medium and high-end commodities,a better consumption environment for imported goods,a sound tax exemption and refund service system,an expanded inbound tourism and so *** paper believes that the degree of integration of various elements such as the subject,object,and carrier between domestic and foreign market still needs to be improved in *** should follow the trend of consumption internationalization and promote the upgrading of China’s consumption to a higher level.

关键词： consumption internationalization consumption abroad

The Impact of Value-Added trade on Global Economic Comovement

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Social Sciences in China 2021年第4期42卷 73-91页

作者： Yang Jijun Gong Huayan School of international Economics and trade Nanjing University of Finance and Economics 不详

Using a value-added accounting framework,we conducted empirical research to analyze product value-added in accordance with the principle of value-sourcing and value-absorption areas,so as to decode"the trade-comovement puzzle."As our study shows,value-added trade can provide a significant positive stimulus for the economic comovement,but it is marked by asymmetry between hub and spoke countries with the former having a pivotal *** analysis of cohesive subgroups indicates that cohesive subgroups and value-added trade are *** bilateral countries belong to the same subgroup,the intensity of their value-added trade exerts an increasing influence on the economic *** has adopted a non-equilibrium opening up strategy and has actively boosted value-added linkages with hub countries;its utilization of the correlative effect of economic growth will enable it to achieve convergence with the growth of high-income *** the same time,China is taking advantage of being the core node in the Belt and Road trade network and is continuing to boost the construction of the Belt and Road Initiative,providing channels for countries along the Belt and Road to integrate into the global value-added system of division of labor and building a global economic environment that features win-win collaboration and co-development.

关键词： value-added trade hub countries spoke countries cohesive subgroups economic comovement

Does the Belt and Road Initiative Promote Bilateral Political Relations?

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China & World Economy 2021年第5期29卷 57-83页

作者： Yue Lu Wei Gu Ka Zeng School of international trade and Economics University of International Business and Economics(UIBE)China department of Economics The Chinese University of Hong KongChina department of Political Science University of ArkansasUSA

This paper examines the role of the Belt and Road Initiative (BRI) in enhancing political relations between China and its partner countries. We postulate that an international economic cooperation scheme such as the BRI may facilitate commercial exchanges and increase the participating countries’ economic gains. This should generate incentives for these countries to avoid political tensions that may jeopardize mutually beneficial economic exchanges, and to expand the constellation of domestic coalitions in support of cordial diplomatic and political relations. We test the effect of the BRI on bilateral political relations using data on political relations between China and 91 countries along the BRI route between 2006 and 2018. Treating the promulgation of the BRI in 2013 as a policy shock, our difference-in-difference analysis lends substantial support to our hypotheses. Further analyses of the underlying causal mechanisms suggest that the BRI bolsters political relations by strengthening economic ties with partner countries through trade and investment related to economic cooperation.

关键词： BRI international economic cooperation political relations

Simultaneous settings of order quantity,wholesale price,production run length,process mean,and warranty period

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Journal of Management Analytics 2016年第2期3卷 174-188页

作者： Chung-Ho Chen Chi-Pand Lo Chao-Chin Kan department of Management and Information Technology Southern Taiwan University of Science and TechnologyTainan department of international Business and trade Aletheia UniversityTamsui

In this article,the authors propose a modified version of *** and Liu’s model with a two-stage production *** that the retailer’s order quantity is concerned with the manufacturer’s selling price and the warranty period of *** used cost of the customer is measured under the Taguchi’s quadratic quality loss function and concluded in the retailer’s profit *** quality of the lot for the manufacturer is determined by adopting a two-stage single sampling rectifying inspection *** modified economic manufacturing quantity(EMQ)model is addressed in formulating the manufacturer’s expected *** retailer’s order quantity,manufacturer’s wholesale price,production run length,process mean,and warranty period of product will be jointly determined by maximizing the total expected profit of the supply chain system including the manufacturer and the ***,the quality investment policy is introduced to illustrate the profit improvement for the supply chain system.

关键词： production run length warranty period Taguchi’s quadratic quality loss function economic manufacturing quantity model single sampling rectifying inspection plan quality investment

Global attractivity of positive periodic solution for a predator-prey model with modified Leslie-Gower Holling-type II schemes and a deviating argument

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international Journal of Biomathematics 2014年第6期7卷 209-221页

作者： Kai Wang Yanling Zhu department of Applied MathematicsAnhui University of Finance and Economics Bengbu 233030 P. R. China School of international trade and EconomicsUniversity of international Business and Economics Beijing 100029 P. R. China

In this paper, by utilizing the comparison theorem and constructing a suitable Lyapunov functional the predator prey model with modified Leslie-Gower Holling-type II schemes and a deviating argument is studied. Some sufficient conditions are obtained for uniform persistence and global attraztivity of positive periodic solutions for this model. Furthermore, an example shows that the obtained criteria are easily verifiable.

关键词： Holling-type II schemes positive periodic solution uniform persistence Lyapunov functional.