利用毛蚶（Anadara granosa）壳作为光催化剂原位合成羟基磷灰石支撑的 Ag3PO4，用于罗丹明 B 的光降解和抗菌剂

Q1 Environmental Science Case Studies in Chemical and Environmental Engineering Pub Date : 2024-06-11 DOI:10.1016/j.cscee.2024.100797

Is Fatimah , Rahmania Audita , Gani Purwiandono , Habibi Hidayat , Suresh Sagadevan , Won-Chun Oh , Ruey-an Doong

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引用次数: 0

摘要

利用毛蚶（Anadara granosa）壳作为生物钙源，通过原位共沉淀和水热法制备了羟基磷灰石支撑的 Ag3PO4（Ag3PO4/HA）纳米复合材料。所获得的纳米复合材料通过不同的仪器分析进行了表征。X 射线衍射光谱、透射电子显微镜和 X 射线光电子能谱分析证实，在 HA 结构上形成了分散的 Ag3PO4，颗粒大小为 10-40 纳米。该材料的带隙能为 2.3 eV，支持其作为光催化剂降解罗丹明 B 的活性。该纳米复合材料在处理 120 分钟后的去除率达到 99.87%，并且在 5 个循环中的去除率和动力学常数变化不大，证明了其可重复使用性。该纳米复合材料对大肠杆菌、金黄色葡萄球菌、肺炎双球菌和化脓性链球菌具有抗菌活性。

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In-situ synthesis of hydroxyapatite-supported Ag3PO4 using cockle (Anadara granosa) shell as photocatalyst in rhodamine B photodegradation and antibacterial agent

A nanocomposite of hydroxyapatite-supported Ag₃PO₄ (Ag₃PO₄/HA) was prepared by in-situ co-precipitation followed by hydrothermal method by utilizing cockle (Anadara granosa) shell as biogenic calcium source. The obtained nanocomposite was characterized by different instrumental analyses. X-ray diffraction spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy analyses confirmed the formation of dispersed Ag₃PO₄ on HA structure with the particles size ranging at 10–40 nm. The material has band gap energy of 2.3 eV which support the activity as photocatalyst for rhodamine B degradation. The removal efficiency of 99.87% was expressed by the nanocomposite for 120 min of treatment, and reusability was demonstrated by insignificant change of the removal and kinetics constant for 5 cycles. The nanocomposite showed antibacterial activity against E. Coli, S. aureus, K. Pneumonia, and S. pyogenes.