Preparation and characterization of boron doped CN’s/MnO2 and its photocatalytic application of dye degradation

Thermal activation significantly improves the organic pollutant removal rate of low-grade manganese ore in a peroxymonosulfate system

“…The absorption peak of the FTIR spectra between 3700 cm −1 and 3200 cm −1 were assigned to the stretching vibration of O–H, attributed to inner surface hydroxyl groups. 34–36 The band at 1627 cm −1 arose from the bending vibrations of H 2 O, 36 the bands around 465–467 cm −1 were ascribed to Mn–O stretching vibration, 36,37 while the peaks at 1373–1375 cm −1 were attributed to the bending vibrations of hydroxyl groups attached with the Mn atoms (Mn–OH), 38,39 which is consistent with the peaks of pure δ-MnO 2 (Fig. S3†).…”

Synthesis of MnO2 sub-microspheres with effective oxidase-mimicking nanozymes for the colorimetric assay of ascorbic acid in orange fruits and juice

“…The MnO 2 sub-microspheres were synthesized with minor modifications based on a previous report. 49 12 mmol of MnCl 2 ·4H 2 O and 8 mmol of KMnO 4 were mixed in 40 mL of deionized water and continuously stirred until a homogenous solution was obtained. The solution was then transferred into a 50 mL stainless steel Teflon-lined autoclave and heated at 170 °C for 12 h. After cooling the autoclave to room temperature, centrifugation was used to collect the remaining precipitate, which was then washed with water and ethanol.…”

Preparation of MnO2-Carbon Materials and Their Applications in Photocatalytic Water Treatment

“…In environment-cleaning applications, different kinds of semiconductor compounds play an important role in the photocatalytic removal of dyes [ 229 ]. In recent years, MnO 2 -carbon materials have shown excellent performances in the photocatalytic degradation of organic dyes, which has attracted extensive research by researchers [ 239 , 240 , 241 , 242 , 243 , 244 , 245 , 246 , 247 , 248 , 249 ] ( Table 4 ). Park et al [ 250 ] synthesized PANI-rGO-MnO 2 ternary composites by polymerizing aniline with rGO and incorporating MnO 2 .…”