Optimization of the PDMS/biochar nanocomposite membranes using the response surface methodology
Source abstract
Abstract
Abstract To improve the separation performance of the polydimethylsiloxane (PDMS)/bark biochar (BB) nanocomposite membranes used for alcohol/water separation, the preparation conditions of these composite membranes were analyzed and optimized. In this study, we investigated the following preparation parameters: the BB pyrolysis temperature, the weight ratio of the silane coupling agent (KH-550) to bark biochar (BB), and the BB loading amount. The regression equations were established between these three preparation parameters and the final pervaporation (PV) performance characteristics of the composite membranes. The membranes performed the best under the following optimal preparation conditions: a BB pyrolysis temperature of 407°C; a silane coupling reagent/BB weight ratio of 0.86, and a BB loading amount of 3.36 wt%. According to the results of the regression analysis, a maximum permeation flux of 221.2 g·m −2 ·h −1 and a maximum selective factor of 21.3 was obtained when the feed temperature for the 5 wt% alcohol solution was set at 40°C.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Membrane Separation and Gas Transport · Membrane Separation Technologies · Fuel Cells and Related Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Biobased Material Science and Technology (Education Ministry) , Northeast Forestry University , Harbin 150040 , China
College of Resources and Chemical Engineering , Sanming University , Sanming, 365004 , China
Faculty of Forestry, University of Toronto , 33 Willcocks Street , Toronto , ON M5S3B3, Canada
Department of Chemical Engineering and Applied Chemistry , University of Toronto , 200 College Street , Toronto, ON M5S 3E5 , Canada
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