Bmim pf6

The [p-C₁₀im][mal] was synthesized as previously reported in the literature [18 (link)]. The [bmim][PF₆] was purchased from Iolitec. Before use, it was dried on a vacuum line at 60 °C for 2 h and stored in a desiccator under argon and over calcium chloride. CNTs, graphene, graphite, ciprofloxacin, nalidixic acid, and methanol were purchased from commercial suppliers and used without any further purification.

BMIM PF₆ (1-butyl-3-methylimidazolium hexafluorophosphate) and BMIM Tf₂N (1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide) were purchased from IoLiTec and stirred under vacuum at 60 °C overnight prior to use to decrease the water content below the limit detectable by spectroscopic techniques [28 (link),38 (link)]. 4-CH₃O-azobenzene (MeO-AB) was synthetised as previously described [8 (link)]; ethanol (99% spectroscopy grade) was purchased from Fluka and used without further purification. The irradiation to induce the trans-cis isomerization was performed by means of a Hg−Xe arc lamp (150 W) equipped with a band-pass interference filter centered at 365.0 +2/−0 nm wavelength and 10.0 +2/−2 nm bandwidth. The UV-vis spectra for the thermal cis-trans isomerization were recorded by using a Cary 1-E spectrophotometer.