Biorenewable Polymer-Based Light-Absorbing Porous Hydrogel for Efficient Solar Steam Desalination

Junmo Jeon; So Hyun Lee; Sang Ryong Lee; Tae Hoon Seo; Young Kwan Kim

doi:10.1021/acsami.3c01880

Biorenewable Polymer-Based Light-Absorbing Porous Hydrogel for Efficient Solar Steam Desalination

Junmo Jeon, So Hyun Lee, Sang Ryong Lee, Tae Hoon Seo, Young Kwan Kim

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

An efficient interfacial heating system composed of a light-absorbing material and a hydrophilic porous support is developed through eco-friendly and energy-effective fabrication processes. Lignin nanoparticles (NPs) and cellulose nanofibers (CNFs) are harnessed as biorenewable light absorbers and hydrophilic supports, respectively. Lignin NPs are prepared using a solvent exchange process of the fractionated lignin with organic solvents to improve its π-π stacking and light-absorbing property for efficient photothermal conversion. Then, the lignin NPs are mixed with CNFs and lyophilized to obtain a light-absorbing porous hydrogel (LAPH), and the resulting LAPHs are covalently cross-linked and hybridized with Au NPs through a seed-mediated growth to further enhance their mechanical stability, hydrophilicity, and photothermal conversion properties. The resulting LAPHs exhibit an outstanding and prolonged performance as a solar steam generator such as high salt and pH tolerance, evaporation rate (3.17 kg m^-2 h^-1), and solar steam generation efficiency (83.4%) under 1 sun irradiation.

Original language	English
Pages (from-to)	30692-30706
Number of pages	15
Journal	ACS Applied Materials and Interfaces
Volume	15
Issue number	25
DOIs	https://doi.org/10.1021/acsami.3c01880
State	Published - 28 Jun 2023

Keywords

cellulose nanofiber
desalination
lignin
nanocomposite
solar steam generation

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10.1021/acsami.3c01880

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title = "Biorenewable Polymer-Based Light-Absorbing Porous Hydrogel for Efficient Solar Steam Desalination",

abstract = "An efficient interfacial heating system composed of a light-absorbing material and a hydrophilic porous support is developed through eco-friendly and energy-effective fabrication processes. Lignin nanoparticles (NPs) and cellulose nanofibers (CNFs) are harnessed as biorenewable light absorbers and hydrophilic supports, respectively. Lignin NPs are prepared using a solvent exchange process of the fractionated lignin with organic solvents to improve its π-π stacking and light-absorbing property for efficient photothermal conversion. Then, the lignin NPs are mixed with CNFs and lyophilized to obtain a light-absorbing porous hydrogel (LAPH), and the resulting LAPHs are covalently cross-linked and hybridized with Au NPs through a seed-mediated growth to further enhance their mechanical stability, hydrophilicity, and photothermal conversion properties. The resulting LAPHs exhibit an outstanding and prolonged performance as a solar steam generator such as high salt and pH tolerance, evaporation rate (3.17 kg m-2 h-1), and solar steam generation efficiency (83.4%) under 1 sun irradiation.",

keywords = "cellulose nanofiber, desalination, lignin, nanocomposite, solar steam generation",

author = "Junmo Jeon and Lee, {So Hyun} and Lee, {Sang Ryong} and Seo, {Tae Hoon} and Kim, {Young Kwan}",

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year = "2023",

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doi = "10.1021/acsami.3c01880",

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T1 - Biorenewable Polymer-Based Light-Absorbing Porous Hydrogel for Efficient Solar Steam Desalination

AU - Jeon, Junmo

AU - Lee, So Hyun

AU - Lee, Sang Ryong

AU - Seo, Tae Hoon

AU - Kim, Young Kwan

PY - 2023/6/28

Y1 - 2023/6/28

N2 - An efficient interfacial heating system composed of a light-absorbing material and a hydrophilic porous support is developed through eco-friendly and energy-effective fabrication processes. Lignin nanoparticles (NPs) and cellulose nanofibers (CNFs) are harnessed as biorenewable light absorbers and hydrophilic supports, respectively. Lignin NPs are prepared using a solvent exchange process of the fractionated lignin with organic solvents to improve its π-π stacking and light-absorbing property for efficient photothermal conversion. Then, the lignin NPs are mixed with CNFs and lyophilized to obtain a light-absorbing porous hydrogel (LAPH), and the resulting LAPHs are covalently cross-linked and hybridized with Au NPs through a seed-mediated growth to further enhance their mechanical stability, hydrophilicity, and photothermal conversion properties. The resulting LAPHs exhibit an outstanding and prolonged performance as a solar steam generator such as high salt and pH tolerance, evaporation rate (3.17 kg m-2 h-1), and solar steam generation efficiency (83.4%) under 1 sun irradiation.

AB - An efficient interfacial heating system composed of a light-absorbing material and a hydrophilic porous support is developed through eco-friendly and energy-effective fabrication processes. Lignin nanoparticles (NPs) and cellulose nanofibers (CNFs) are harnessed as biorenewable light absorbers and hydrophilic supports, respectively. Lignin NPs are prepared using a solvent exchange process of the fractionated lignin with organic solvents to improve its π-π stacking and light-absorbing property for efficient photothermal conversion. Then, the lignin NPs are mixed with CNFs and lyophilized to obtain a light-absorbing porous hydrogel (LAPH), and the resulting LAPHs are covalently cross-linked and hybridized with Au NPs through a seed-mediated growth to further enhance their mechanical stability, hydrophilicity, and photothermal conversion properties. The resulting LAPHs exhibit an outstanding and prolonged performance as a solar steam generator such as high salt and pH tolerance, evaporation rate (3.17 kg m-2 h-1), and solar steam generation efficiency (83.4%) under 1 sun irradiation.

KW - cellulose nanofiber

KW - desalination

KW - lignin

KW - nanocomposite

KW - solar steam generation

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DO - 10.1021/acsami.3c01880

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AN - SCOPUS:85164210474

SN - 1944-8244

VL - 15

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EP - 30706

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 25

ER -

Biorenewable Polymer-Based Light-Absorbing Porous Hydrogel for Efficient Solar Steam Desalination

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