Highly selective hydrogenation of furfural to furfuryl alcohol over Pt nanoparticles supported on g-C3N4 nanosheets catalysts in water

Abstract

Graphitic carbon nitride nanosheets were investigated for developing effective Pt catalyst supports for selective hydrogenation of furfural to furfuryl alcohol in water. The nanosheets with an average thickness of about 3 nm were synthesized by a simple and green method through thermal oxidation etching of bulk g-C3N4 in air. Combined with the unique feature of nitrogen richness and locally conjugated structure, the g-C3N4 nanosheets with a high surface area of 142 m2 g−1 were demonstrated to be an excellent supports for loading small-size Pt nanoparticles. Superior furfural hydrogenation activity in water with complete conversion of furfural and high selectivity of furfuryl alcohol (>99%) was observed for g-C3N4 nanosheets supported Pt catalysts. The large specific surface area, uniform dispersion of Pt nanoparticles and the stronger furfural adsorption ability of nanosheets contributed to the considerable catalytic performance. The reusability tests showed that the novel Pt catalyst could maintain high activity and stability in the furfural hydrogenation reaction.

A Co3O4-CDots-C3N4 three component electrocatalyst design concept for efficient and tunable CO2 reduction to syngas

“…4e) by using two synthetic peaks positioned at BE = 795.0 and 797.3 eV (Co 3+ and Co 2+ , respectively). Figure 1c shows type IV N 2 adsorption–desorption isotherms of the Co 3 O 4 -CDots-C 3 N 4 with a H3-type hysteresis loop 35 , indicating the formation of a porous structure (the pore-size distribution was derived from the isotherms; for more details, see Supplementary Methods) is presented in Fig. 1c inset; specific surface area ~160 m 2 /g).…”

Efficient Photocatalytic Bilirubin Removal over the Biocompatible Core/Shell P25/g-C3N4 Heterojunctions with Metal-free Exposed Surfaces under Moderate Green Light Irradiation

“…Therefore, attention has been paid to the efficient and stable VLD photocatalysts with metal-free exposed surfaces because of their improved biosafety89. Recently, graphitic carbon nitride (g-C 3 N 4 ), a typical layered-stacked metal-free polymer semiconductor with a narrow band gap of 2.7 eV, has attracted intensive attention for its promising applications as a VLD photocatalyst owing to its advantages such as low cost, nontoxicity and stability within PH 0–141011. Unfortunately, the overall photocatalytic efficiency of pure g-C 3 N 4 is limited by its low nonlocalized conductivity, high recombination rate and small specific surface area1213.…”

Influence of MoS2 on Activity and Stability of Carbon Nitride in Photocatalytic Hydrogen Production

“…The Pt4f spectra in Figure S13 show signals from Pt 0 (72.6 and 75.7 eV) and Pt 2+ (74.9 and 77.7 eV). Interestingly, these values are somewhat higher compared with literature values for surfaces of bulk samples (71.1 and 74.4 eV for Pt 0 ; 72.4 and 76.0 eV for Pt 2+ ) [38]. This may be due to the very small particle size (evidenced also by TEM) [39][40][41][42].…”