Multifunctional luminescent nanomaterials based on mesoporous silica SBA-16 doped with a ring-opening rhodamine derivative (RhNHS) or with a cationic porphyrin bearing imidazolium substituents (Porph) were successfully obtained and characterized. The non-immobilized Porph leads to a selective colorimetric detection for Cu²⁺, Pb²⁺ and Hg²⁺ in HEPES buffer at pH 7, producing colour changes from violet to pink, green and brown, detecting the minimal amount of 3.6, 5.8 and 3.8 ppm by absorption, respectively. The new approach afforded solid-state devices that showed a colorimetric and fluorometric response towards toxic metal ions, such as Cu²⁺, Pb²⁺ and Hg²⁺, with a naked-eye detection of 5 ppm for [email protected]Porph. A minimal detectable amount of 2 ppb, confirmed by ICP-AES, was achieved with both hybrid nanosystems for Hg²⁺, and extraction values of Hg²⁺ in water were higher than 70%. Moreover, [email protected]Porph was successfully applied for Hg²⁺ remediation in water, being able to extract the amount of 69 mg/g (0.86 mmol/g).

基于中孔二氧化硅SBA-16掺杂有开环罗丹明衍生物（多功能发光纳米材料RhNHS）或与阳离子卟啉轴承咪唑取代基（Porph成功获得和表征）。非固定化的Porph导致选择性比色检测pH值为7的HEPES缓冲液中的Cu 2 ⁺，Pb ²⁺和Hg ²⁺，从而产生从紫色到粉红色，绿色和棕色的颜色变化，检测到的最小量为3.6、5.8和吸收分别为3.8 ppm。这种新方法提供了固态器件，该器件对有毒金属离子（例如Cu 2 ⁺，Pb）表现出比色和荧光测量响应。²⁺和Hg ²⁺，肉眼检测出的[电子邮件保护] Porph含量为5 ppm 。两种杂化纳米系统对Hg ^2+的检出均达到ICP-AES的最低可检测量2 ppb，水中Hg ^2+的萃取值高于70％。此外，[电子邮件保护的] Porph已成功应用于水中Hg ^2+的修复，其提取量为69 mg / g（0.86 mmol / g）。