A novel pH-Dependent sensor for recognition of strontium ions in water: A hierarchically structured mesoporous architectonics

被引：10

作者：

Alhindawy, I. G. ^{[1
]}

Tolan, D. A. ^{[2
,3
]}

Elshehy, E. A. ^{[1
]}

El-Said, W. A. ^{[4
,5
]}

Abdelwahab, S. M. ^{[6
]}

Mira, H. I. ^{[1
]}

Taketsugu, T. ^{[7
,8
]}

Utgikar, V. P. ^{[9
]}

El-Nahas, A. M. ^{[3
]}

Youssef, A. O. ^{[6
]}

机构：

[1] Nucl Mat Author, Cairo, Egypt

[2] Prince Sattam bin Abdulaziz Univ, Coll Sci & Humanities, Dept Chem, Alkharj 11942, Saudi Arabia

[3] Menoufia Univ, Fac Sci, Dept Chem, Shibin Al Kawm, Egypt

[4] Assiut Univ, Fac Sci, Dept Chem, Assiut 71516, Egypt

[5] Univ Jeddah, Coll Sci, Dept Chem, POB 80327, Jeddah 21589, Saudi Arabia

[6] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt

[7] Hokkaido Univ, Fac Sci, Dept Chem, Hokkaido, Sapporo 0600810, Japan

[8] Hokkaido Univ, Inst Chem React Design & Discovery WPI ICReDD, Hokkaido, Sapporo 0600810, Japan

[9] Univ Idaho, Chem & Mat Engn, Moscow, ID 83844 USA

来源：

TALANTA | 2023年 / 253卷

关键词：

Strontium ions; Mesoporous materials; Chromogenic probe; Sensor; Detection; Recovery; POTENTIOMETRIC SENSOR; AB-INITIO; NANOPARTICLES; CALCIUM; BARIUM; DESIGN; GOLD;

D O I：

10.1016/j.talanta.2022.124064

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This paper reports the synthesis of a hierarchically structured mesoporous architectonics silica as a pH-dependent sensor for the detection and adsorption of strontium ions (Sr2+) from radioactive strontium-contaminated water. Herein, we designed a colored sensor based on the cubical mesoporous architectonics silica monoliths that enabled the detection of extremely harmful radioactive strontium ions (Sr2+) from drinking water. The surface -coating process of hierarchically cubical silica monoliths by one-step decoration using benzenesulfonic acid, 3-[[8-(acetylamino)-2-hydroxy-1-naphthalenyl]azo]-5-chloro-2-hydroxy-sodium salt signaling probe enabled us to create a unique pH-dependent colorant sensor. In this design, the high loading capacity and trapping of the chromogenic probe could be achieved, leading to the formation of an organic-inorganic hybrid that formed from cubically-silica pores and a chromogenic probe dressing layer. In this sensing system, a remarkable change in color and absorbance intensity of the sensor for strontium ions was observed at a pH value of 10.3. The syn-thesized cubically porous architectonic silica sensor is tailored to enable accessibility for continuous and efficient pH-dependent-strontium ion sensing capability concerning reversibility, selectivity, and signal stability.

引用

页数：10

共 39 条

[1] Compton suppression method and epithermal NAA in the determination of nutrients and heavy metals in Nigerian food and beverages [J].