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Showing papers by "Xiamen University published in 2022"


Journal ArticleDOI
Andrea Geier1
TL;DR: Wang et al. as mentioned in this paper explored the impact of the urban innovation environment on the effect of green technological innovations on CO2 emissions and found that green technology innovations can contribute to CO2 emission mitigation after 2010, while the effect was not significant in Chinese cities before 2010.

129 citations



Journal ArticleDOI
TL;DR: In this paper, a 3D conductive and lithiophilic carbon bowl-like hard carbon/reduced graphene nanosheets (CB@rGO) hybrid anode was proposed for Li metal anode.
Abstract: Lithium (Li) metal with high theoretical capacity and low electrochemical potential is the most ideal anode for next-generation high-energy batteries. However, the practical implementation of Li anode has been hindered by dendritic growth and volume expansion during cycling, which results in low Coulombic efficiency (CE), short lifespan, and safety hazards. Here, we report a highly stable and dendrite-free Li metal anode by utilizing N-doped hollow porous bowl-like hard carbon/reduced graphene nanosheets (CB@rGO) hybrids as three-dimensional (3D) conductive and lithiophilic scaffold host. The lithiophilic carbon bowl (CB) mainly works as excellent guides during the Li plating process, whereas the rGO layer with high conductivity and mechanical stability maintains the integrity of the composite by confining the volume change in long-range order during cycling. Moreover, the local current density can be reduced due to the 3D conductive framework. Therefore, CB@rGO presents a low lithium metal nucleation overpotential of 18 mV, high CE of 98%, and stable cycling without obvious voltage fluctuation for over 600 cycles at a current density of 1 mA·cm−2. Our study not only provides a good CB@rGO host and pre-Lithiated CB@rGO composite anode electrode, but also brings a new strategy of designing 3D electrodes for those active materials suffering from severe volume expansion.

79 citations


Journal ArticleDOI
TL;DR: In this article, a continuous photobioreactor (PBR) architecture is recommended for a pilot-scale trial, as a cost-benefit comparison would be beneficial in commercializing the framework.
Abstract: Microalgae are promising sustainable energy sources for biodiesel production due to their rapid photosynthesis growth rate and capacity to be cultivated in wastewater, seawater, or freshwater. Moreover, microalgae could complete the entire growth cycle via photosynthesis reactions that convert light energy into renewable energy. The closed photobioreactor, PBR is resistant to infection from uninhabited algae species and allows frequent monitoring of various factors such as temperature, light intensity, and pH during the cultivation phase. Thus, this study focuses on continuous cultivation technology which produces higher biomass productivity with sustainable energy-saving operation as compared to batch culture. High productivity of microalgae biomass tends to accumulate higher concentrations of lipid and carbohydrates composition which is essential for the production of biofuels. The energy balance of numerous microalgae-based biofuels was discussed, and it was discovered that the net-energy ratio was greater than 1, indicating that the process is both commercially feasible and environmentally friendly. This study also summarizes the most recent discoveries on continuous cultivation constraints through photobioreactors, PBRs as well as potential challenges to tackle in scaling up the continuous sustainable culture mechanism. The research gaps, market opportunities, and future development directions of continuous photobioreactor systems are discussed to explore future development opportunities. A continuous photobioreactor, architecture is recommended for a pilot-scale trial, as a cost-benefit comparison would be beneficial in commercializing the framework.

75 citations


Journal ArticleDOI
TL;DR: In this article, the authors empirically examined how environmental regulation affects the iron and steel industry's green development and showed that there is a U-shaped relationship between environmental regulation and energy-environmental performance.
Abstract: Environmental regulation is a critical instrument for achieving sustainable economic and social development in the context of carbon neutrality. The iron and steel industry is highly polluting and energy-consuming, posing a significant threat to China's environmental sustainability. Based on the panel of Chinese provincial-level data from 2000 to 2017, this paper empirically examines how environmental regulation affects the iron and steel industry's green development. The findings show that there is a U-shaped relationship between environmental regulation and energy-environmental performance. Low environmental regulation intensity inhibits the improvement of energy-environmental performance. But as the regulation intensity increases, it contributes to the advancement of energy-environmental performance. Environmental regulation affects the industrial energy-environment performance through technological innovation, and the relationship between environmental regulation and technological innovation presents a U-shaped relationship. There are noticeable regional differences in the impact of environmental regulation on energy-environmental performance. The findings provide new evidence to confirm the Porter Hypothesis. Finally, this paper provides policy suggestions for further energy-environmental performance improvements in China's iron and steel industry.

64 citations


Journal ArticleDOI
Andrea Geier1
01 Jan 2022
TL;DR: In this article , the authors empirically examined how environmental regulation affects the iron and steel industry's green development and found that there is a U-shaped relationship between environmental regulation and energy-environmental performance.
Abstract: Environmental regulation is a critical instrument for achieving sustainable economic and social development in the context of carbon neutrality. The iron and steel industry is highly polluting and energy-consuming, posing a significant threat to China's environmental sustainability. Based on the panel of Chinese provincial-level data from 2000 to 2017, this paper empirically examines how environmental regulation affects the iron and steel industry's green development. The findings show that there is a U-shaped relationship between environmental regulation and energy-environmental performance. Low environmental regulation intensity inhibits the improvement of energy-environmental performance. But as the regulation intensity increases, it contributes to the advancement of energy-environmental performance. Environmental regulation affects the industrial energy-environment performance through technological innovation, and the relationship between environmental regulation and technological innovation presents a U-shaped relationship. There are noticeable regional differences in the impact of environmental regulation on energy-environmental performance. The findings provide new evidence to confirm the Porter Hypothesis. Finally, this paper provides policy suggestions for further energy-environmental performance improvements in China's iron and steel industry.

64 citations


Journal ArticleDOI
TL;DR: A comprehensive review on the preparation, properties of LDH in the forms of powder and film and their applications in different environments in corrosion and protection can be found in this article, where some novel perspectives are also proposed at the end of the review.

62 citations


Journal ArticleDOI
TL;DR: In this article, the authors discuss the synthesis, characterization and application of microalgal-based biochar in wastewater and examine the adsorption capacity and efficiency of biochar derived from different microalgae species.

59 citations


Journal ArticleDOI
TL;DR: A literature survey of 160 published articles (1981-2021) showed that DGR is the most ideal solution for long-term storage of the PUNF, as it provides an ultimate destination in a deep underground that permanently isolates the waste from inhabitants and the environment as mentioned in this paper.

49 citations


Journal ArticleDOI
TL;DR: Wang et al. as discussed by the authors proposed that China should draw up its own development path of renewable energy from international development experience, and actively explore renewable energy policies and strategies adapted to different stages of development.
Abstract: Renewable energy has become an important choice to solve the energy crisis and environmental problems. A sustainable development needs policies and strategies policies, which can improve energy efficiency and reduce greenhouse gas emissions. By collecting the research results released by relevant statistical departments and authoritative institutions, this paper summarizes the international energy development situation, systematically combs the energy development situation of the European Union, United States, Australia, India, Brazil. The development trend of wind, solar, biomass, geothermal, ocean, and hydrogen energy have been analyzed. In addition, this paper proposes that China should draw up its own development path of renewable energy from international development experience, and actively explore renewable energy policies and strategies adapted to different stages of development.

47 citations


Journal ArticleDOI
TL;DR: A literature survey of 160 published articles (1981-2021) showed that DGR is the most ideal solution for long-term storage of the PUNF, as it provides an ultimate destination in a deep underground that permanently isolates the waste from inhabitants and the environment as mentioned in this paper .

Journal ArticleDOI
TL;DR: In this paper , the authors investigated how to add economic value to recycled waste using digital technology and how economic incentives can be promoted to avoid generating waste, and they found that the digital transformation of waste industry encouraged community in Yogyakarta to sell waste online via Rapel app installed in their smartphones.

Journal ArticleDOI
TL;DR: In this article , a universal bioresponsive doxorubicin (DOX)-based nanogel was designed to achieve tumor-specific co-delivery of drugs.

Journal ArticleDOI
TL;DR: In this paper, the authors comprehensively review the effects and relevant mechanisms of non-antibiotic factors on the horizontal transfer of ARGs in water environments, especially contaminants from human activities and water treatment processes.

Book ChapterDOI
Xiang Wang1, Guo-Kun Liu1, Ren Hu1, Maofeng Cao1, Sen Yan1, Yi-Fan Bao1, Bin Ren1 
01 Jan 2022
TL;DR: In this article, the authors guide the reader through the principles of SERS, including the electromagnetic field enhancement and chemical enhancement, with emphasis on the surface plasmon resonance effect.
Abstract: Surface-enhanced Raman spectroscopy (SERS) has manifested its power in clinical applications, benefitted from the ability to provide fingerprint information even down to single-molecule level. In this chapter, we will guide you through the principles of SERS, including the electromagnetic field enhancement and chemical enhancement, with emphasis on the surface plasmon resonance effect. Some practical issues, such as spectral analysis and selection of SERS substrates, will also be briefed from the mechanistic understanding. The main purpose of this chapter is to provide you the necessary background to understand the literatures and start your own journey of applying SERS for clinical diagnosis.

Journal ArticleDOI
TL;DR: In this paper , the authors comprehensively review the effects and relevant mechanisms of non-antibiotic factors on the horizontal transfer of ARGs in water environments, especially contaminants from human activities and water treatment processes.

Journal ArticleDOI
TL;DR: In this paper , explicit closed-form formulae of the Kirchhoff index and the number of spanning trees are obtained for Möbius octagonal chain (Mn) and cylinder octagonal chains (mn′).

Journal ArticleDOI
TL;DR: In this article, explicit closed-form formulae of the degree-Kirchhoff index and the number of spanning trees are obtained for both linear polyomino chain and cylinder octagonal chain.

Journal ArticleDOI
Guifang Li1, Yawen Li1, Xiaofen Chen1, Xinyi Hou1, Huiting Lin1, Lishan Jia1 
TL;DR: In this paper, ammonium dihydrogen phosphate (NH4H2PO4) was used as an activator and co-dopant to induce the synthesis of N, P-co-doped porous carbon nanosheets (NPCNs) from pomelo peel for using as high-performance supercapacitors.

Journal ArticleDOI
TL;DR: In this paper, the authors assembled all-wood hydrogels with anisotropic mechanical properties through the formation of dynamic bonding between cellulose fibers, natural wood lignin, polyacrylamide (PAM) chains, and iron ions.

Journal ArticleDOI
TL;DR: The results indicate that energy efficiency does not significantly improve economic growth quality, but there is an obvious U-shaped relationship between energy efficiency and economic growthquality.

Journal ArticleDOI
TL;DR: In this paper, the effects of inulin on the water migration, ice crystal formation, and freeze-thaw stability of surimi under different additive amounts and polymerization degrees (DP).

Journal ArticleDOI
idroselvwp1
TL;DR: In this paper , the effects of inulin on the water migration, ice crystal formation, and freeze-thaw stability of surimi under different additive amounts and polymerization degrees (DP).

Journal ArticleDOI
01 Feb 2022-Fuel
TL;DR: In this paper, the authors reported that Na and Zn promoted Fe (Na-Zn-Fe) catalysts showed prominent catalytic performances, which provided C2-C12 olefin selectivity of 80% and high-valued C4+ linear α-olefin (LAO) selectivity at CO2 conversion of 39% in CO2 hydrogenation.

Journal ArticleDOI
TL;DR: In this article, a novel and efficient binary logistic regression (BLR) is proposed for accurately predicting the specific type of Type-II DM, and making the model adaptive to more than one dataset.

Journal ArticleDOI
A. M. Orlov1
TL;DR: In this paper , a novel and efficient binary logistic regression (BLR) is proposed for accurately predicting the specific type of Type-II DM, and making the model adaptive to more than one dataset.

Journal ArticleDOI
TL;DR: Wang et al. as discussed by the authors evaluated safety and immunogenicity of a live-attenuated influenza virus vector-based SARS-CoV-2 vaccine (dNS1-RBD) administered by intranasal spray in healthy adults.

Journal ArticleDOI
TL;DR: In this paper, the effects of pH level and biomass concentration on polymer interaction and emulsion stability were systematically studied by using an interfacial tensiometer and a rheometer.
Abstract: Camellia oil has a high content of unsaturated fatty acids and active ingredients, but it is unstable during production, storage, and application. Camellia oil Pickering emulsions were prepared by utilizing electrostatic complex of glycosylated whey protein isolate (gWPI) and chitooligosaccharide (COS) as the emulsifier can be used as an effective carrier system. The effects of pH level and biomass concentration on polymer interaction and emulsion stability were systematically studied. The emulsion's interfacial properties and rheological behavior were studied by using an interfacial tensiometer and a rheometer, respectively. The mass ratio of 1:1 (1%) and pH 5.0 were the optimal conditions for protein–COS interactions. Compared with WPI-COS, the content of absorbed protein in the O/W interface of gWPI-COS increased, and the diffusion (kdiff) and rearrangement (kR) rates of proteins in the O/W interface of the gWPI/gWPI-COS significantly improved according to the rheokinetics of protein adsorption at the oil/water interface. Moreover, a higher viscoelasticity in the WPI/gWPI-COS stabilized the emulsion system. Subsequent studies on the stability of the emulsion also showed that the Pickering emulsions stabilized by gWPI–COS had better thermal stability, oxidative stability, resistance to oscillatory shear than gWPI/WPI or WPI-COS emulsion.

Journal ArticleDOI
TL;DR: In this paper , the authors summarized the recent progress in developing high-performance polymer-and ceramic-based dielectric composites, and emphases are placed on capacitive energy storage and harvesting, solid-state cooling, temperature stability, electromechanical energy interconversion, and high-power applications.
Abstract: Dielectric composites boost the family of energy storage and conversion materials as they can take full advantage of both the matrix and filler. This review aims at summarizing the recent progress in developing high-performance polymer- and ceramic-based dielectric composites, and emphases are placed on capacitive energy storage and harvesting, solid-state cooling, temperature stability, electromechanical energy interconversion, and high-power applications. Emerging fabrication techniques of dielectric composites such as 3D printing, electrospinning, and cold sintering are addressed, following by highlighted challenges and future research opportunities. The advantages and limitations of the typical theoretical calculation methods, such as finite-element, phase-field model, and machine learning methods, for designing high-performance dielectric composites are discussed. This review is concluded by providing a brief perspective on the future development of composite dielectrics toward energy and electronic devices.

Journal ArticleDOI
TL;DR: In this article , the expression of the m 6 A modification “writer” Mettl14 was increased in coronary heart disease and LPS-stimulated THP-1 cells.
Abstract: Abstract The inflammatory response of macrophages has been reported to play a critical role in atherosclerosis. The inflammatory state of macrophages is modified by epigenetic reprogramming. m 6 A RNA methylation is an epigenetic modification of RNAs. However, little is known about the potential roles and underlying mechanisms of m 6 A modification in macrophage inflammation. Herein, we showed that the expression of the m 6 A modification “writer” Mettl14 was increased in coronary heart disease and LPS-stimulated THP-1 cells. Knockdown of Mettl14 promoted M2 polarization of macrophages, inhibited foam cell formation and decreased migration. Mechanistically, the expression of Myd88 and IL-6 was decreased in Mettl14 knockdown cells. Through m 6 A modification, Mettl14 regulated the stability of Myd88 mRNA. Furthermore, Myd88 affected the transcription of IL-6 via the distribution of p65 in nuclei rather than directly regulating the expression of IL-6 through m 6 A modification. In vivo, Mettl14 gene knockout significantly reduced the inflammatory response of macrophages and the development of atherosclerotic plaques. Taken together, our data demonstrate that Mettl14 plays a vital role in macrophage inflammation in atherosclerosis via the NF-κB/IL-6 signaling pathway, suggesting that Mettl14 may be a promising therapeutic target for the clinical treatment of atherosclerosis.