Efficient capture of lead ion and methylene blue by functionalized biomass carbon-based adsorbent for wastewater treatment

Towards furfural and biomass char production from Camellia oleifera husks using dilute hydrochloric acid pretreatment: a comprehensive investigation on adsorption performance

“…20 Furthermore, FTIR spectroscopy reveals the manifestation of the N–H stretching vibration at 1571 cm −1 . 37 Overall, the FTIR spectroscopy results provide valuable insights into the adsorption mechanism of MB dyes by BC, indicating the involvement of hydrogen bonding and π–π interactions. 41…”

“…20 Furthermore, FTIR spectroscopy reveals the manifestation of the N-H stretching vibration at 1571 cm −1 . 37 Overall, the FTIR spectroscopy results provide valuable insights into the adsorption mechanism of MB dyes by BC, indicating the involvement of hydrogen bonding and p-p interactions. 41 In addition to the FTIR spectroscopy analysis, the structural properties of the BC used in our study were compared with those of coconut activated carbon (CAC) based on literature reports (see the ESI †).…”

“…At lower pH levels, the increased presence of H + ions competes with MB cations for the active adsorption sites on the BC surface. 37 As the pH value rises, the concentration of OH − ions increases. When the pH surpasses the zero-point potential of the BC surface, the surface becomes negatively charged.…”

Mangifera indica stone-assisted layered double hydroxide biocomposites: efficient contenders for reactive dye adsorption from aqueous sources

“…To enhance the mechanical strength and biosorption capacity, a synergistic effect can be achieved by combining materials from different classes in the form of composites. 33,34 Currently, layered double hydroxide (LDH) materials are gaining attention as a prominent candidate for biocomposite synthesis and also find application in various advanced fields including drug delivery, 35 electrolytic water splitting, 36 and supercapacitors. 37 The synergistic effect of LDH with biomass shows a significant improvement in physicochemical properties such as stability, functional groups, increased surface area and structural heterogeneity.…”

“…To enhance the mechanical strength and biosorption capacity, a synergistic effect can be achieved by combining materials from different classes in the form of composites. 33,34…”