Plastic products represented by polyethylene terephthalate (PET) have become an important part of modern life and global economy. In order to solve the resource waste and environmental problems caused by PET waste and to realize high-value recycling of materials, there is an urgent need to explore low-cost green and efficient conversion and recycling methods. Chemical depolymerization can deal with low-value, mixed, and contaminated plastics, recover polymer monomers through different chemical reactions or chemically upgrade and recycle to produce new high value-added products, realizing the closed-loop recycling of plastic waste and high value-added applications, which is a key way to establish a circular polymer economy. This paper reviews the latest research progress of chemical depolymerization process of PET waste, analyzes the problems of chemical depolymerization technology of PET waste, and looks forward to the future development trend of chemical depolymerization process of PET waste.

Bifunctional small molecules are a sort of small molecules that engage multiple targets. They are subdivided into two categories: bifunctional small molecules with linkers and without linkers. Targeted protein degradation (TPD) is a currently emerging strategy hijacking cellular protein degradation systems, namely ubiquitin-proteasomal system and lysosomal system, to induce the degradation of targeted protein for drug development. Distinct from the traditional mechanism of action based on inhibition, TPD inhibits the function of targeted protein through targeted clearance, thus is advantageous in long-term inhibition and targeting undruggable proteins. With a unique mechanism of action, bifunctional small molecules are capable of binding degradation-associated protein and targeted protein simultaneously, and therefore used widely in the realm of TPD. This review summarizes the recent development of bifunctional molecules in TPD. Proteolysis targeting chimeras (PROTACs), molecular degraders of extracellular proteins through the asialoglycoprotein receptors (MoDE-As), and autophagy targeting chimeras (AUTACs) which based on bifunctional small molecules with linkers, and molecular glue degraders (MGDs) and autophagosome-tethering compounds (ATTECs) which based on bifunctional small molecules without linkers are introduced, with their clinical application highlighted. Finally, the challenges that the two categories of bifunctional small molecules respectively face in the realm of TPD as well as prospects and suggestions for their development are proposed.

The visible-light-driven copper-catalyzed decarboxylative coupling reaction of carboxylic acids and their derivatives is a novel, efficient, and green synthetic method. It allows the construction of various carbon-carbon and carbon-heteroatom bonds for the synthesis of a wide range of high-value-added chemicals, making it a hot topic in the field of modern synthetic chemistry. In recent years, researchers worldwide have conducted extensive studies in this area, achieving a series of innovative results that have been widely applied in organic synthesis, materials science, and medicinal chemistry. This paper reviews the latest experimental and theoretical advances in the visible-light-driven copper-catalyzed decarboxylative coupling reactions of carboxylic acids and their derivatives, with a focus on several typical cross-coupling reactions that form C—X (X = C, N, O, S) bonds. It also discusses the future development prospects of this catalytic method.

Nowadays stretchable electronic devices have become a hot research topic in the field of information electronics because of their excellent mechanical and electrical properties. As the high-speed electron transmission channel in stretching electronic devices， stretchable conductive materials play a crucial role in realizing the functions of stretching electronic devices. Liquid metal has become a hot research object in the field of stretchable conductive composites in recent years because of its intrinsic flexibility and excellent conductivity. Liquid metal is a room temperature liquid conductive material， which exhibits excellent stretchability and tunability due to its inherent high conductivity， fluidity， and ductility. Liquid metal-based stretchable conductive composites preparation and patterning techniques have been reported and many stretchable devices with excellent combination of mechanical and electrical properties have been prepared. In view of the general structural characteristics of liquid metal-based stretchable composites， the key to the preparation is how to solve the interfacial non-impregnation problem caused by the physical property differences between different materials. Therefore， starting from the common types of composites， this paper firstly briefly introduces the components and physical properties of liquid metals generally used， as well as the stretchable polymer matrix materials usually employed. Then， the composite methods of conductive materials and elastomer materials in liquid metal-based electrodes are reviewed from the two ways of "passive" and "active" to deal with the problem of non-wetting at the interface， as well as the blending and dispersion method and the new modification method. Finally， the latest research progress is introduced， and the current status of liquid metal research is summarized. Future development and potential problems to be faced are also discussed.

Solar energy is the energy source for all life on Earth, and its efficient conversion is of great significance for solving the global energy crises and environmental issues. Inspired by natural photosynthesis, researchers have recently developed whole-cell biohybrids based on semiconductors and microorganisms by integrating the excellent light absorption ability of photosensitizer semiconductors and the efficient biocatalysis ability of whole-cell microbes. The development of whole-cell biohybrids aims to realize efficient solar-to-chemical production in a green and low-carbon pathway. This review clarifies the operation principle and advantages of whole-cell biohybrids, and the properties of photosensitizer semiconductors are summarized, including the band structure, excitation wavelength and quantum yield. Moreover, this work innovatively concludes the construction mechanisms of whole-cell biohybrids and the electron transfer mechanisms in the interface between semiconductor and microbe. Moreover, the advanced progress of whole-cell biohybrids are reviewed, such as the high-value conversion of carbon dioxide, artificial nitrogen fixation, hydrogen production as well as pollutant removal and recovery. Finally, the environmental impacts and challenges of whole-cell biohybrids are discussed and the perspectives for the development of whole-cell biohybrids are proposed. This article is expected to provide fundamental insights for the further development and actual application of whole-cell biohybrids.

The exceptional waterproof and oil-repellent properties of fluorides, attributed to their remarkably low surface energy, have rendered them extensively employed in the realm of functional finishing. However, the use of fluorine presents potential hazards to human health and engenders irreversible harm to the environment. Consequently, it is progressively being regulated by nations, and discovering alternatives without fluorine has emerged as an imperative concern that necessitates immediate attention in the fields of waterproofing and anti-fouling. To clarify the definition of the fluorine-free materials with oil-repellent property and explore their potential applications in the field of chemistry, the research background of fluorine-free surfaces with oil-repellent property was described, along with a comprehensive review and evaluation of recent achievements and preparation methods. Furthermore, the mechanism of fluorine-free surfaces with oil-repellent property was analyzed, and the application status of fluorine-free coating with oil-repellent property in textiles, construction, food, liquid treatment and other fields was summarized. Additionally, an analysis of the current challenges in ongoing research process of fluorine-free surfaces with oil-repellent property was provided. Finally, a prospective outlook on the future of green and environmentally-friendly fluorine-free surface technology was prospected.

Taking into account environmental concerns and the ongoing shift towards clean energy， converting carbon dioxide （CO₂） into ethylene （C₂H₄） through electrochemical CO₂ reduction （ECO₂RR） using renewable electricity is a sustainable and eco-friendly solution for achieving carbon neutrality while also providing economic benefits. Despite significant advancements in the field， issues such as low selectivity， activity and stability continue to persist. This paper presents a review of recent research progress in copper-based catalytic systems for ECO₂RR in the production of ethylene. Firstly， the mechanism of ECO₂RR is briefly summarized. It then highlights various catalyst design strategies for ethylene production， such as tandem catalysis， crystal surface modulation， surface modification， valence influence， size sizing， defect engineering， and morphology design. Finally， the paper discusses future challenges and prospects for the synthesis of ethylene through electrocatalytic CO₂ reduction.

In the realm of two-dimensional nanomaterials, black phosphorus (BP) is considered a promising candidate to address the shortcomings of graphene and transition metal dichalcogenides (TMDs). Low- dimensional black phosphorus (BP) refers to a class of nanomaterials derived from the layered semiconductor BP. These materials exhibit high structural anisotropy, tunable bandgap widths, and high hole and electron mobility, endowing BP with unique properties such as conductivity, photothermal, photodynamic, and mechanical behaviors. BP's near-infrared light response significantly enhances its effectiveness in photothermal and photodynamic antibacterial applications. Additionally, due to its unique layered structure, BP nanosheets (BPNS) possess a high surface-to-volume ratio, making them excellent carriers for loading and delivering other antimicrobial nanomaterials or drugs. First, this article discusses the physical properties of low-dimensional BP and introduces various preparation methods. Furthermore, it systematically reviews exciting therapeutic applications of polymer-modified black phosphorus nanomaterials in various fields, such as cancer treatment (phototherapy, drug delivery, and synergistic immunotherapy), bone regeneration, and neurogenesis. Finally, the paper discusses some challenges facing future clinical trials and potential directions for further research.

Solar photoelectrochemical （PEC） water splitting holds significant importance for the development of sustainable green energy. With ongoing research， the BiVO₄ photoanode， a core component of PEC systems， faces challenges in scaling up and maintaining long-term stability. The superiority of fully conformal coating strategies lies in their lack of substrate size constraints， ability to suppress photo-corrosion of the BiVO₄ semiconductor， creation of multifunctional interfaces， and potential synergistic action with heterojunctions and promoter catalysts， which may facilitate the stable operation of large-scale PEC water splitting devices for over 1000 hours. This review briefly introduces the basic principles of PEC water splitting and the development status of representative devices， elaborates on the important concept and main design principles of fully conformal coatings aimed at large-scale photoanodes， summarizes recent advances in materials capable of achieving fully conformal deposition coatings， including molecular catalysts， metal oxides/hydroxides， carbonized/sulfurized/phosphorized materials， and metal-organic frameworks （MOFs）， and discusses key characteristics of fully conformal coatings with greater development potential. Finally， it presents a prospective view on future trends in fully conformal coatings for BiVO₄ photoanodes.

Liquid crystal elastomers （LCEs） are crosslinked polymer networks that combine the anisotropy of liquid crystals with the entropic elasticity of elastomers. They exhibit reversible large deformations under external stimuli， making them a focal point in smart materials research. Among various forms， LCE fibers， characterized by their high aspect ratio and large specific surface area， demonstrate enhanced sensitivity， greater deformation capacity， and excellent reversibility， weavability， and programmability， significantly broadening their application potential. In recent years， advancements in manufacturing technologies have expanded the fabrication methods of LCE fibers from traditional pulling and templating techniques to advanced spinning technologies such as melt spinning， electrospinning， wet spinning， and emerging 3D/4D printing techniques. These innovations have not only provided more possibilities for structural design and performance optimization of LCE fibers but also promoted their widespread use in high-performance material applications. This article systematically reviews the molecular structure and diverse fabrication methods of LCE fibers， discusses their applications in artificial muscles， soft robotics， smart clothing， and wearable devices， and provides an outlook on the future development of LCE fibers.

In the era of heightened global environmental consciousness， the principle of sustainable development has become deeply ingrained in public awareness. However， conventional petroleum-based adhesives are plagued by issues of unsustainability， high energy consumption， and significant environmental pollution during their production and application. Consequently， the development of green， sustainable， and high-performance biomass-based adhesives has emerged as a critical research focus. Biomass-based adhesives continue to encounter significant challenges， including suboptimal water resistance， elevated production costs， and the necessity for enhanced environmental performance. Future research should focus on optimizing the modification process of biomass raw materials， reducing production costs， improving the comprehensive properties of adhesives， and promoting their large-scale industrial application. In-depth investigation into the correlation between the structure and properties of biomass is crucial for the development of environmentally friendly and cost-effective adhesives. This paper summarizes the classification， modification methods， and properties of biomass-based raw materials and provides a detailed prospect for their future development.

With excellent multiplication performance， stable high and low-temperature performance， abundant sodium resources and low cost， sodium-ion batteries have good application prospects in the field of large-scale energy storage and low-speed electric vehicles. The cathode material determines the working voltage and cycling performance of sodium-ion batteries， and is the core component that directly affects the overall performance of sodium-ion batteries. Among them， Na₃V₂（PO₄）₂F₃ （NVPF） has excellent structural stability and high working potential， but slow ion diffusion and low electronic conductivity， which need to be further improved by elemental doping and other modification means. This paper has introduced the background， crystal structure and preparation method of NVPF. Has summarized in detail the modification progress of doping at different doping sites， such as sodium， vanadium， and anionic sites in NVPF materials. The mechanisms of doping in NVPF materials were analyzed， which can optimize the particle size， enhance the lattice stability， change the lattice spacing to enhance the diffusion rate of sodium ions， and increase the electronic conductivity. Based on the above， this paper summarized the preparation， doping sites and effects of NVPF materials from the perspective of subsequent research， and have also looked ahead to the future prospects of doping modification.