Abstract: Graphene, a novel nanomaterial, has demonstrated promising applications in environmental management due to its unique physicochemical properties. This paper reviews the practical applications of graphene in water treatment, air purification and waste management. In water treatment. graphene oxide has shown high efficiency in removing heavy metal ions and organic pollutants. In air purification, graphene-based catalysts exhibit excellent removal efficiency for nitrogen oxides and sulfur dioxide, while graphene oxide also performs exceptionally well in removing volatile organic compounds. Additionally, graphene's applications in waste management, including electrochemical waste treatment and thermal conductivity in waste incineration, highlight its potential in improving treatment efficiency and reducing harmful gas emissions. Despite the promising outlook for graphene in environmental improvement, challenges such as high production costs and long-term stability issues need further investigation. Future research should focus on reducing production costs, enhancing material performance, and assessing environmental impacts to facilitate the widespread application of graphene in environmental protection. Read More

Abstract: Bismuth-based perovskite has become the best candidate material for non-lead perovskite because of its low toxicity and good moisture stability. The structural diversity of bismuth halide perovskites gives them many photoelectric properties, such as nonlinear optical properties, photochromic effects and photoelectric effects. However, bismuth halide perovskite materials with different stoichiometric ratios have different light absorption properties and carrier transport processes. In order to search for high stability and excellent optical properties of bismuth halide perovskite materials, this paper synthesized Rb3BiBr6 materials by using rubidium bromide and bismuth bromide as precursors, and further studied the morphology and optical properties of the materials by scanning electron microscopy, UV-VIS absorption spectroscopy, ultraviolet photoelectron spectroscopy and nanosecond transient absorption spectroscopy. The results show that the material has a wide light absorption range and a long carrier transfer process, indicating that the bismuth-based perovskite material has great application value in the field of photocatalysis and photodetector. Read More

Abstract: Laser cladding technology, as an efficient material surface modification technique, has seen widespread application in the industrial field in recent years. Rare earth elements, with their unique physical and chemical properties, have demonstrated significant advantages in laser cladding materials. Firstly, rare earth elements can significantly enhance the hardness, wear resistance, and corrosion resistance of the clad layer, thereby extending the service life of components. Secondly, rare earth elements can improve the micro-structure and bonding strength of the clad layer, enhancing overall mechanical performance. Additionally, rare earth elements can act as deodorizers during the laser cladding process, increasing the purity and quality of the cladding material. However, the addition of rare earth elements also brings some technical challenges, such as uneven element distribution and high costs. Currently, optimizing the application of rare earth elements in laser cladding to achieve a balance between material performance and cost remains a key research direction. Through further exploration and innovation, the potential of rare earth elements in laser cladding will be more broadly realized. Read More

Abstract: This article mainly conducts numerical simulations on the crack propagation of carbon nanotube reinforced magnesium based composites during uniaxial tensile failure. Selecting the cross-section of a representative carbon nanotube reinforced magnesium based composite material model as the research object, the model was loaded in multiple load steps using ANSYS finite element software, and the location and propagation path of cracks were discussed. It was found that cracks first appeared at the interface between carbon nanotubes and magnesium matrix; The direction of crack propagation is perpendicular to the direction of the load, which is called vertical crack propagation; As the load step gradually increases, the crack propagation speed gradually increases, especially when two parallel vertical cracks overlap, the crack propagation speed becomes more significant; Throughout the entire crack propagation process, the matrix has the most damaged units. Read More

Abstract: Compared with traditional petroleum plastics (such as polyethylene, polypropylene and polystyrene) extracted from corn starch (PLA), it has significant advantages, especially in terms of strength, moisture -proof and biodegradability. Essence Due to its excellent performance, polymapilic acid has been commercialized in the field of textiles and packaging. This review aims to explain the difference between the performance of biodegradable packaging and traditional petroleum base materials in the application of biochemical packaging packaging and traditional petroleum base materials, and conduct critical analysis. The performance of breathability and antibacterial ability focused on the modification of polymapilic acid for food preservation packaging. Overall, polystrackic acid as a promising sustainable food packaging substitute has a biochemical and degradable environmental friendship, but it is necessary to further study to solve its production cost and performance restrictions. This article will take polystrackic acid (PLA) as an example to explain the performance advantages of biodegradable packaging and application and future development. Read More

Abstract: Renewable energy technologies have seen substantial progress in recent years, with solar, wind, and water becoming key sustainable energy sources. Solar photovoltaic technology, in particular, has advanced significantly, driving down costs and making renewable energy more economically viable across many regions. Despite these advancements, challenges such as technological maturity, high costs, and inefficiencies in energy storage and transmission continue to hinder widespread adoption. Conductive polymers have emerged as promising materials to address these challenges, particularly in enhancing organic solar cell efficiency. Their lightweight and flexible properties make them ideal for portable and adaptable energy applications. Structural modifications, including adjustments to conjugation lengths, side chains, and the incorporation of nanomaterials, have improved light absorption, charge transport, and overall energy conversion efficiency. This review explores the critical role of polymers in renewable energy technologies, focusing on their application in solar cells, energy storage, and sustainable material design. It highlights innovative approaches to polymer development, such as nanocomposite integration and chemical modifications, which have enabled significant advancements in energy efficiency and sustainability. By addressing current challenges and uncovering future potential, this study emphasizes the importance of polymers in driving the transition to renewable energy systems. Read More

Abstract: Organic chemistry has profoundly influenced the field of materials science, driving significant advancements in the development of innovative materials with unique properties. This paper explores the integration of organic chemistry principles into materials science, highlighting recent progress and applications. The study begins by establishing the foundational concepts that link organic chemistry to materials science, emphasizing the role of molecular structure and reactivity in determining material properties. Recent advancements are examined, showcasing how organic synthesis techniques have enabled the design of novel materials with tailored functionalities, such as improved mechanical strength, enhanced conductivity, and novel optical properties. The paper also analyzes the application of organic compounds in developing sustainable materials, including biodegradable polymers and organic semiconductors for electronic devices. The results demonstrate the versatility and efficacy of organic chemistry in addressing current challenges in materials science, driving innovations that lead to more efficient and environmentally friendly solutions. In conclusion, the paper underscores the potential for further interdisciplinary collaboration, suggesting future research directions that could leverage organic chemistry to create advanced materials with unprecedented capabilities. Through this exploration, it becomes evident that the synergy between organic chemistry and materials science offers promising avenues for scientific and technological advancements. Read More

Abstract: As a new type of building material, Engineered Fiber Reinforced Cementitious Composite have attracted the attention of many scholars in civil engineering. They have super toughness, quasi strain hardening, and multi joint cracking characteristics. Due to the excellent characteristics of ECC, this material has been widely developed in the United States, Japan, and Europe, and has been successfully applied in multiple practical project engineering. Materials should meet fatigue reliability requirements before being put into use. Due to the large variability of fatigue life, in order to meet engineering needs, probability statistics should be used to analyze their fatigue characteristics. Compared to other continuity probability distribution models, the Weibull distribution model can better describe the fatigue life characteristics of ECC materials. Domestic and foreign scholars have conducted corresponding research on the fatigue life of ECC materials, all of which have confirmed that the fatigue performance of ECC materials is significantly better than that of ordinary concrete, and its fatigue life follows a Weibull distribution. This article will apply Weibull probability density function to derive the fatigue life of ECC materials, in preparation for subsequent experiments. Read More

Abstract: In the current developed electrochemical energy storage device system, drainage zinc ion batteries have attracted wide attention due to their safe operation, environmental friendliness and high theoretical specific capacity. However, when applied to the anode of drainage zinc ion batteries, uneven zinc deposition leads to the formation and growth of zinc dendrite, piercing the diaphragm and causing a short circuit in the battery. Zinc dendrites have mechanical rigidity and structural inhomogeneity, which is easy to fall off from the zinc negative electrode to form "dead zinc", leading to the reduction of active materials and the decline of battery capacity. In addition, hydrogen evolution reaction (HER), corrosion, passivation and other side reactions also occur, resulting in the stability of the battery. These adverse electrochemical reactions all occur at the zinc metal anode / electrolyte interface, which limits the development and application of drainage zinc ion battery. This paper summarizes the current carbon materials in stabilizing zinc metal anode and constructing some composite coatings to functionalize the surface of zinc anode to inhibit zinc dendrites and related side reactions, improve the stability of zinc metal anode, and then improve the electrochemical performance of drainage zinc ion battery. Read More