Construction of silver-doped graphitic carbon nitride integrated zeolitic imidazolate framework as an ultra-sensitive probe for colorimetric detection application

• Published in: Physica scripta 2025-02, Vol.100 (2), p.25908
• Main Authors: Zairov, Rustem R, Elgorban, Abdallah M, Jameel, Rafid Kamal, Albadr, Rafid Jihad, Hatem, Ali, Mansoor, Aseel Salah, Radi, Usama Kadem, Abd, Nasr Saadoun, Alfagham, Alanoud T, Janani, Baadal Jushi
• Format: Article
• Language: English
• Subjects: Ag-g-C; colorimetric; sensitivity; stacking; triarylmethane dye; ZIF-8
• ISSN: 0031-8949; 1402-4896
• DOI: 10.1088/1402-4896/ada071

Malachite green, and phloxine B are highly effective antifungal, and antibacterial agents utilized primarily in aquaculture. It is classified within the Triarylmethane dye. Numerous studies have indicated that malachite green, and phloxine B are significantly toxic to both terrestrial and aquatic organisms. More critically, it poses substantial risks to human health and safety. As a result, several governments have prohibited its application in aquaculture and food production. There is a pressing need to develop a novel colorimetric probe for the detection of malachite green, and phloxine B. In response, a composite material was synthesized, combining Zeolitic Imidazolate Framework (ZIF-8) with silver-doped graphitic carbon nitride (Ag-g-C 3 N 4 ), to serve as a colorimetric probe for the sensitive and selective identification of malachite green, and phloxine B. The Ag-g-C 3 N 4 /ZIF-8 composite demonstrated exceptional colorimetric sensing capabilities, attributed to the synergistic interactions between ZIF-8 and Ag-g-C 3 N 4 , achieving a detection limit as low as 1.073 nM, and 1.214 nM, for malachite green, and phloxine B, respectively. This composite represents a significant advancement in environmental sensing technology, providing a versatile and effective approach for detecting and addressing contamination in water resources.