Journal
MICROCHEMICAL JOURNAL
Volume 159, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.microc.2020.105410
Keywords
SBA-15; Functionalization; Azides; Triazole; Click reaction; Phenolic compounds
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Funding
- King Fahd University of Petroleum and Minerals [DSR SL191003]
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Series of sorbents, N-sulfonyl-4-hydroxymethyl-1,2,3-triazole functionalized SBA-15 (x-S-SO2-triazole-OH; x = 5-20 wt%), have been developed via a two-step synthesis strategy: first, co-condensation of 6-azidosulfonylhexyltriethoxysilane and tetraethoxysilane to form 6-azidosulfonylhexyl functionalized SBA-15; and second, the Click reaction of 6-azidosulfonylhexyl functionalized SBA-15 with propyn-1-ol to form (x-S-SO2- triazole OH).The sorbents with abundant hydrogen bonding sites were used in a stir bar-supported micro-solid-phase extraction (SB-mu-SPE) for six selected phenolic compounds in 10 mL water samples, and the 20-S-SO2-triazoleOH sorbent presented the best extraction efficiency. The linearity range for all tested phenols is within 1-1000 ng mL(-1) with R value up to 0.9931 and a detection limit (LOD) of 0.03-0.30 ng mL(-1). The RSD values were determined in the range of 2-16% and the relative recoveries in the domestic wastewater sample successfully presented a range of 84.5-108.6%.
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