Abstract
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•Preparation of mesoporous MCM-41 with spherical particles.•Fabrication of MCM-41-based chemical sensor for 1,2-dichlorobenzene.•Efficient 2-dichlorobenzene sensor in a broad scales of environmental and ecological fields.
Recently, mesoporous silicas with uniform pore diameters and ordered pore systems showed promising performances in sensing applications. The present paper was performed to develop a novel 1,2-dichlorobenzene chemical sensor based on mesoporous MCM-41 material, which exhibited a good performance at room temperature. The prepared MCM-41 was characterized using XRD, FT-IR, FE-SEM, TEM, EDX and XPS techniques. The obtained results revealed the spherical nature of the prepared MCM-41 with a good structural order and high specific area. A thin layer of synthesized MCM-41 was deposited on glassy carbon electrode (GCE). By using the fabricated working electrode for the chemical sensor, it was practically applied to detect 1,2-dichlorobenzene (1,2-DCB) successively by an electrochemical approach in phosphate buffer phase. The proposed 1,2-DCB chemical sensor has been exhibited good sensitivity (0.7468 μAμM−1 cm−2), wide linear dynamic range (0.089 nM–8.9 mM), low detect limit (13.0 ± 0.65 pM), and short response time (14.0 s). This novel 1,2-DCB chemical sensor based on MCM-41might be reliable and promisingly approach for the detection of 1,2-DCB for the safety of environment and healthcare fields in a broad scales.