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Selective photoelectrochemical oxidation of glycerol to high value-added dihydroxyacetone.

ABSTRACT: It is highly profitable to transform glycerol - the main by-product from biodiesel production to high value-added chemicals. In this work, we develop a photoelectrochemical system based on nanoporous BiVO4 for selective oxidation of glycerol to 1,3-dihydroxyacetone - one of the most valuable derivatives of glycerol. Under AM 1.5G front illumination (100 mW cm-2) in an acidic medium (pH = 2) without adscititious oxidant, the nanoporous BiVO4 photoanode achieves a glycerol oxidation photocurrent density of 3.7 mA cm-2 at a potential of 1.2 V versus RHE with 51% 1,3-dihydroxyacetone selectivity, equivalent to a production rate of 200 mmol of 1,3-dihydroxyacetone per m2 of illumination area in one hour.

SUBMITTER: Liu D

PROVIDER: S-EPMC6467901 | biostudies-other | 2019 Apr

REPOSITORIES: biostudies-other

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Selective photoelectrochemical oxidation of glycerol to high value-added dihydroxyacetone.

Liu Dong D Liu Jin-Cheng JC Cai Weizheng W Ma Jun J Yang Hong Bin HB Xiao Hai H Li Jun J Xiong Yujie Y Huang Yanqiang Y Liu Bin B

Nature communications 20190416 1

It is highly profitable to transform glycerol - the main by-product from biodiesel production to high value-added chemicals. In this work, we develop a photoelectrochemical system based on nanoporous BiVO4 for selective oxidation of glycerol to 1,3-dihydroxyacetone - one of the most valuable derivatives of glycerol. Under AM 1.5G front illumination (100 mW cm-2) in an acidic medium (pH = 2) without adscititious oxidant, the nanoporous BiVO4 photoanode achieves a ...[more]

PMID: 30992441

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