Preparation of biomass‐derived phosphorus‐doped microporous carbon material and its application in dye adsorption and CO₂ capture

Abstract

Microporous P‐doped carbon materials are synthesized by a pyrolysis method using MCM‐22 as a template, sucrose as a precursor, and phosphoric acid as phosphorus sources. The results show that the pore structure of the carbon materials can be adjusted by changing the amount of phosphoric acid and template. When the P/C molar ratio is 0.075, the obtained P‐doped microporous carbon material shows excellent specific surface area up to 621 m2/g and shows a high adsorption capacity of 199.40 mg/g for crystal violet dye, with a removal rate of 98.9%. When testing the CO2 adsorption capacity, it was found that the maximum adsorption capacity reached 63 mg/g and remained stable after 10 adsorption and desorption cycles, with excellent cycle stability. The adsorption obeys pseudo‐second‐order kinetic model, and the adsorption isotherm follows the Langmuir model.

Effect of Physico-Chemical Properties Induced by N, P Co-Doped Biomass Porous Carbon on Nitrous Oxide Adsorption Performance

“…Meanwhile, the phosphorus (P) atom can also be considered as a common doping candidate, and the P-containing functional groups of the porous carbon also play a pivotal role in the adsorption performance. Wu et al [31] synthesized P-doped microporous carbon via using MCM-22 as the template, sucrose as the precursor, and phosphoric acid as the P source, respectively. The maximum adsorption capacity of CO 2 reached 63 mg•g −1 .…”

Preparation and photocatalytic performances of ZnO nanostructures: Effects of anodization voltage and time

“…In order to eliminate MB dye from effluent water, the cost‐effective, traditional, and influential approaches like adsorption, reverse osmosis, and dye coagulation are commonly used 14,15 . Nevertheless, complete extraction of MB dye is insufficient by these procedures 16,17 . Photocatalytic processes are the effective way to dissociate the organic contaminants into slighter harmful substance 18 …”

“…14,15 Nevertheless, complete extraction of MB dye is insufficient by these procedures. 16,17 Photocatalytic processes are the effective way to dissociate the organic contaminants into slighter harmful substance. 18 The photocatalytic efficiency of the semiconductors relies upon numerous variables like the bulk composition, phase, morphological structure, surface field, band alignment, and defect content.…”