New insights into microwave pyrolysis of biomass: Preparation of carbon-based products from pecan nutshells and their application in wastewater treatment

摘要: Microwave pyrolysis of pecan nutshell (Carya illinoinensis) biomass was used to produce carbon-based solid products with potential application in contaminated water treatment. A range analytical techniques were applied characterize the intermediate microwave order monitor physio-chemical effects interacting energy on biomass. The performance tested through evaluation lead ion removal capacity from solution. Further analyses demonstrated that ion-exchange by calcium ions material surface main mechanism involved removal. Calcium compound development directly correlated interaction electromagnetic waves biomass. Through monitoring biomass-microwave interactions during pyrolysis, we have shown for first time differ those conventional pyrolysis. We hypothesise selective heating leads (hemi)cellulosic and lignin degradation processes occurring simultaneously, whereas they are largely sequential pyrolysis. This work provides optimization parameters essential large scale design this as well an understanding how operating impact functionality resulting materials.