Mercury adsorption and reduction by nonlinear optical material (NLOM) DMABR loaded on Sepiolite: A mechanism study

Green synthesis of a magnetite/graphitic carbon nitride 2D nanocomposite for efficient Hg2+ remediation

“…All solid-state NMR experiments were conducted using an Agilent Technologies NMR System 600 MHz NMR spectrometer with a 3.2 mm NB Double Resonance HX MAS Solids Probe. Cross-polarization (CP) and magic-angle spinning (MAS) techniques were employed for 13 C and 15 N experiments, with high-power proton decoupling during acquisition. Spectra were recorded at a spinning rate of 16 kHz for 13 C measurements and 10 kHz for 15 N measurements.…”

“…Cross-polarization (CP) and magic-angle spinning (MAS) techniques were employed for 13 C and 15 N experiments, with high-power proton decoupling during acquisition. Spectra were recorded at a spinning rate of 16 kHz for 13 C measurements and 10 kHz for 15 N measurements. Chemical shifts for 13 C and 15 N were referenced to tetramethylsilane and nitromethane, respectively.…”

“…Spectra were recorded at a spinning rate of 16 kHz for 13 C measurements and 10 kHz for 15 N measurements. Chemical shifts for 13 C and 15 N were referenced to tetramethylsilane and nitromethane, respectively.…”

“…2a and b). Further, the structure of tris-s-triazine was studied using 13 C cross-polarization magic-angle spinning (CP-MAS) NMR to identify the integrity of the chemical structure. 61,62 It can be seen that the sample, two peaks at 155.52 and 164.96 ppm correspond to the C 1 of NC-N 2 and C 2 of NC-N(NH x ) in heptazine structure in the corrugated g-CN melon networks, respectively, and the black asterisks denote spinning sidebands (Fig.…”

“…As a result, this requirement has stimulated researchers to design and synthesize novel adsorbent materials. 12–16…”