Camellia oleifera seed shell activated carbon and its preparation process

Abstract

The invention discloses a camellia oleifera seed shell activated carbon and a preparation process thereof: the activated carbon uses the camellia oleifera seed husk as a carbon source, and after ammoniation, leaching, and steam explosion treatment in advance, extracts active substances in the camellia oleifera seed shell, and then uses three Sulfur oxide-triethylamine compound is used as sulfonating agent, and ammonium bicarbonate is used as activating agent to prepare nitrogen-doped sulfonated mesoporous activated carbon through carbonization and activation. , the nitrogen content is 10-15%, and the specific surface area is 1600-2200m 2 / g, the mesoporosity reaches 48-65%, and the average pore diameter is 4-6nm. The present invention preliminarily extracts tea saponin, tea seed polysaccharide, tea seed protein and other active substances in camellia oleifera seed husks through grading treatment on camellia oleifera seed husks, and then carbonizes and activates them to obtain camellia oleifera seed husk extract and mesoporous Activated carbon, so as to realize the comprehensive utilization of resources and increase the added value of camellia oleifera seed shell, the activated carbon has continuously adjustable mesopore diameter and mesoporosity, and exhibits excellent adsorption, desorption and catalytic performance.

Description

technical field

[0001] The invention belongs to the technical field of resource utilization of camellia oleifera seed shells, and specifically relates to a nitrogen-doped sulfonated mesoporous activated carbon using camellia oleifera seed shells as a raw material and a preparation process thereof. Background technique

[0002] Camellia oleifera seed shells are leftovers in the process of preparing tea oil. At present, the main direction of resource utilization of camellia oleifera seed shells is to prepare activated carbon. Because camellia oleifera seed shells are rich in active ingredients such as tea saponin, tea seed polysaccharide, and tea seed protein , without grading treatment, directly carbonizing and activating it at high temperature will inevitably cause the loss and waste of a large amount of active substances in the camellia oleifera seed shell. In addition, with the maturity of porous material preparation technology, functional activated carbon with high mesopo...

Images