Conversion of Au(III)-polluted waste eggshell into functional CaO/Au nanocatalyst for biodiesel production

Jiadi Liu; Minghuan Liu; Shaoyun Chen; Bingqing Wang; Jin Chen; Da-Peng Yang; Shangzhou Zhang; Wenxiao Du

Green Energy & Environment (Apr 2022)

Conversion of Au(III)-polluted waste eggshell into functional CaO/Au nanocatalyst for biodiesel production

Jiadi Liu,
Minghuan Liu,
Shaoyun Chen,
Bingqing Wang,
Jin Chen,
Da-Peng Yang,
Shangzhou Zhang,
Wenxiao Du

Affiliations

Jiadi Liu: College of Life Science, Yantai University, Yantai, Shandong Province, 264005, China; School of Nuclear Equipment and Nuclear Engineering, Yantai University, Yantai, Shandong Province, 264005, China
Minghuan Liu: College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, Fujian Province, 362000, China
Shaoyun Chen: College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, Fujian Province, 362000, China
Bingqing Wang: College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, Fujian Province, 362000, China
Jin Chen: Clinical Center for Molecular Diagnosis and Therapy, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Shandong Province, 362000, China
Da-Peng Yang: College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, Fujian Province, 362000, China; Corresponding authors.
Shangzhou Zhang: School of Nuclear Equipment and Nuclear Engineering, Yantai University, Yantai, Shandong Province, 264005, China; Corresponding authors.
Wenxiao Du: College of Life Science, Yantai University, Yantai, Shandong Province, 264005, China; Corresponding authors.

Journal volume & issue: Vol. 7, no. 2
pp. 352 – 359

Abstract

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Developing an environmental-friendly and highly active catalyst in transesterification for biodiesel production is of great importance for a more economic biodisel process. Herein, we reported that waste eggshells were used to adsorb Au(III) in water and convert the Au(III)-polluted eggshells into the functional nanocatalyst-CaO/Au for the transesterification reaction between soybean oil and methanol to the preparation of biodiesel. By coupling of CaO and Au nanoparticles, CaO/Au nanoparticles showed superior catalytic activity for the transesterification reaction between soybean oil and methanol. An optimum performance was observed over CaO/Au nanocomposites in a methanol-oil molar ratio at 12 : 1 with catalyst content of 1.0 wt% at 70 °C for 3 h. Besides, the catalytic activity of CaO/Au nanocatalyst was almost unchanged after recycling for 5 times and the yield of biodiesel still kept at 88.9%. The proof-of concept study provided us a sustainable method for utilization of waste eggshells to remedy the metal ions-polluted wastewater and the synthesis of functional nanocomposite for biodiesel production, show great potential application of waste eggshell in adsorption and catalytic reactions.

Published in Green Energy & Environment

ISSN: 2468-0257 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mechanical engineering and machinery: Renewable energy sources; Science: Biology (General): Ecology
Website: https://www.keaipublishing.com/en/journals/green-energy-and-environment/

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