Superhydrophobic STA@PF@Cu2O modified wood with photocatalytic degradation properties for efficiency oil/water separation

Sengwei Xia; Ruifeng Cheng; Ke Zhan; Quanxiong Lu; Haiqiu Jiang; Tengfei Yi; Jeffrey Morrell; Lianpeng Zhang; Guanben Du; Wei Gao

doi:10.1016/j.jece.2021.106857

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Superhydrophobic STA@PF@Cu2O modified wood with photocatalytic degradation properties for efficiency oil/water separation

Journal article

Peer reviewed

Superhydrophobic STA@PF@Cu2O modified wood with photocatalytic degradation properties for efficiency oil/water separation

Sengwei Xia, Ruifeng Cheng, Ke Zhan, Quanxiong Lu, Haiqiu Jiang, Tengfei Yi, Jeffrey Morrell, Lianpeng Zhang, Guanben Du and Wei Gao

Journal of Environmental Chemical Engineering, Vol.9(6), pp.1-9

2021

DOI: https://doi.org/10.1016/j.jece.2021.106857

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Abstract

balsa wood

Cu2O NPs

Oil absorption

Oil/water separation

Photocatalytic activity

The potential for coatings using Cu2O nanostructures combined with stearic acid (STA) and phenol formaldehyde (PF) resin to selectively sorb oils from oil/water mixtures was explored on balsa wood (Ochroma pyramidale). Wood samples coated by immersion in STA@PF@Cu2O nanostructures absorbed 1.6–3.9 times their weight from a wide range of oil and organic solvents with absorption capacity generally increasing with oil density. Separation efficiency of the coated balsa was above 90% for several oil/water mixtures, and the material surface could be regenerated up to 30 times by exposure to visible light while still retaining up to ~94% efficiency. For example, a 320 min light exposure of coated samples used to sorb methylene blue resulted in 99.8% degradation with photocatalytic reaction rate constants reaching 0.013 min–1. The coating represents an easily applied, cost effective and efficient system for oil sorption or oil/water sorption for spill-cleanup or wastewater treatment.

Details

Title: Superhydrophobic STA@PF@Cu2O modified wood with photocatalytic degradation properties for efficiency oil/water separation
Authors: Sengwei Xia (Author) - Southwest Forestry University
Ruifeng Cheng (Author) - Southwest Forestry University
Ke Zhan (Author) - Southwest Forestry University
Quanxiong Lu (Author) - Southwest Forestry University
Haiqiu Jiang (Author) - Southwest Research Institute
Tengfei Yi (Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design Life
Jeffrey Morrell (Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design Life
Lianpeng Zhang (Author) - Southwest Forestry University
Guanben Du (Author) - Southwest Forestry University
Wei Gao (Author) - Southwest Forestry University
Publication details: Journal of Environmental Chemical Engineering, Vol.9(6), pp.1-9
Publisher: Elsevier BV
DOI: 10.1016/j.jece.2021.106857
ISSN: 2213-3437
Organisation Unit: Forest Research Institute; University of the Sunshine Coast, Queensland; National Centre for Timber Durability and Design Life
Language: English
Record Identifier: 99584805602621
Output Type: Journal article

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