Nguyen Minh Hoang , Nguyen Thi Bich Ngoc , Nam-Anh Tran , Nang Xuan Ho , Hai-Linh Thi Dang , Dang Viet Cuong , Vu Thi Trang , Phan Thi Lan Huong , Phan Thi Thanh Huyen , Muhammad Saqlain Jamil , Sining Yun , Le Tuan Tu , Linh Nguyen Duy Pham , Van-Duong Dao
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引用次数: 0
Abstract
Dual emission carbon dots (DE-CDs) have emerged as a transformative class of nanomaterials, offering distinct advantages over single-emission carbon dots (SE-CDs), including superior anti-interference capabilities, built-in self-calibration and broader full-width at half maximum (FWHM) emission spectra. This review comprehensively explores recent advancements in the synthesis of DE-CDs, detailing their physicochemical characteristics and elucidating key hypotheses underlying the formation of dual-emission peaks, such as the roles of core states, surface states, and quantum confinement effects. The diverse applications of DE-CDs are systematically analyzed, emphasizing their use in ratiometric sensing, bioimaging, biosensing, pH monitoring, moisture and water detection, and white light-emitting diodes (WLEDs). A comparative evaluation highlights their advantages and limitations relative to traditional fluorescence materials. Furthermore, recent progress in integrating DE-CDs into dye-sensitized solar cells (DSCs) and solar steam generation (SSG) devices is presented, underscoring their potential in renewable energy technologies. Finally, this review discusses the challenges and prospects for developing DE-CDs, including the need for scalable synthesis techniques, optimization of quantum yields for lighting applications, and enhanced understanding of dual-emission behavior mechanisms. Despite these challenges, DE-CDs hold immense promise for advancing technologies in sensing, bioimaging, lighting, and sustainable energy systems.
期刊介绍:
The Journal of Environmental Chemical Engineering (JECE) serves as a platform for the dissemination of original and innovative research focusing on the advancement of environmentally-friendly, sustainable technologies. JECE emphasizes the transition towards a carbon-neutral circular economy and a self-sufficient bio-based economy. Topics covered include soil, water, wastewater, and air decontamination; pollution monitoring, prevention, and control; advanced analytics, sensors, impact and risk assessment methodologies in environmental chemical engineering; resource recovery (water, nutrients, materials, energy); industrial ecology; valorization of waste streams; waste management (including e-waste); climate-water-energy-food nexus; novel materials for environmental, chemical, and energy applications; sustainability and environmental safety; water digitalization, water data science, and machine learning; process integration and intensification; recent developments in green chemistry for synthesis, catalysis, and energy; and original research on contaminants of emerging concern, persistent chemicals, and priority substances, including microplastics, nanoplastics, nanomaterials, micropollutants, antimicrobial resistance genes, and emerging pathogens (viruses, bacteria, parasites) of environmental significance.