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    Recent updates on g-C3N4/ZnO-based binary and ternary heterojunction photocatalysts toward environmental remediation and energy conversion
    (Eurasia Acad Publ Group (Eapg), 2023) Rana, Parul; Dhull, Priya; Sudhaik, Anita; Chawla, Akshay; Nguyen, Van-Huy; Kaya, Savas; Ahamad, Tansir
    Background: The utilization of photocatalytic materials has garnered significant consideration due to their distinctive properties and diverse applications in environmental remediation and energy conversion. In photocatalysis, several wide and narrow band gap photocatalysts have been discovered. Amongst several photocatalysts, g-C3N4 photocatalyst is becoming the interest of the research community due to its unique properties. But as a single photocatalyst, it is inherited with certain confines for instance higher photocarrier recombination rate, lower quantum yield, low specific surface area, etc. However, the heterojunction formation of g-C3N4 with other wide band gap photocatalysts (ZnO) has improved its photocatalytic properties by overcoming its limitations. Methods: The synergistic interaction amid g-C3N4 and ZnO photocatalysts enhanced optoelectrical properties superior mechanical strength and improved photocatalytic activity. The nanocomposite exhibits excellent stability, high surface area, efficient separation, and migration of photocarriers, which are advantageous for applications in photocatalytic energy conversion and environmental remediation. The g-C3N4-ZnO nanocomposite represents a material comprising g-C3N4 and ZnO photocatalysts which exhibit a broad absorption range, efficient electron-hole separation, and strong redox potential. The combination of these two distinct materials imparts enhanced properties to the resulting nanocomposite, making it suitable for various applications. Henceforth, current review, we have discussed the photocatalytic properties of g-C3N4 and ZnO photocatalysts and modification strategies to improve their photocatalytic properties. Significant Findings: This article offers an inclusive overview of the g-C3N4-ZnO-based nanocomposite, highlighting its photocatalytic properties and potential applications in several pollutant degradation and energy conversion including hydrogen production and CO2 reduction.
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    Unveiling new horizons of progress on manipulating the structure and characterization of phosphate-modified polymer for selective uranium adsorption
    (Elsevier Science Sa, 2024) Kaur, Balvinder; Rana, Parul; Singh, Pardeep; Singh, Archana; Chaudhary, Vishal; Kaya, Savas; Van Le, Quyet
    The hazardous effect of Uranium (U(VI)) on the environment principally stems from its metallic and radioactive properties. Considering the toxicity and radioactivity of U(VI)), there is an imperative necessity to remove U(VI)) from wastewater through various adsorbents. This comprehensive review delves into the quest for employing phosphate-modified polymers for U(VI) uptake by adsorption. The review emphasizes the critical role of U(VI) specific binding to phosphate-modified polymers in increasing the affinity of polymers toward U(VI). The merging of phosphate-based polymers and interactions such as coordination bonding and complexation generated a precise speculation of the chemisorption exhaustion mechanism. The advertisements for interactions with the adsorbent are determined by parameters like pH, coexisting ions, ionic strength, temperature, and contact time, which gives information about the adsorption process. This review summarises the recent breakthroughs towards the classifications, synthesis, and adsorption mechanism of phosphate-modified polymers. In turn, the capacity of phosphate-modified polymers to adsorb contributes to the fact that the polymers are regeneratable after desorption. Overall, this clarifies the potential of phosphate modification to improve the adsorption capacity of polymer adsorbents.