Utilizing waste PET plastics derived metal-organic framework catalyst for the hydrodeoxygenation of lignin phenols

Yasin Khani; Avnish Kumar; Jinwoo Hwang; Chang Hyun Ko; Jeong Myeong Ha; Jeong Woo Han; Young Kwon Park

doi:10.1016/j.cej.2025.164392

Utilizing waste PET plastics derived metal-organic framework catalyst for the hydrodeoxygenation of lignin phenols

Yasin Khani
, Avnish Kumar
, Jinwoo Hwang
, Chang Hyun Ko
, Jeong Myeong Ha
, Jeong Woo Han
, Young Kwon Park

School of Environmental Engineering

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

2 Scopus citations

Abstract

In this study, the catalytic hydrodeoxygenation (HDO) of guaiacol using polyethylene terephthalate (PET)-derived RM125T(p) and TiO₂ catalysts (anatase-Ru@TiO₂(A), rutile-Ru@TiO₂(R), and Ru@TiO₂(P25)) under a hydrogen environment was investigated. Comparative analysis of selectivity and yield demonstrates that the M125T(p) support significantly enhances catalytic activity and selectivity. The PET-derived RM125T(p) catalyst exhibited superior performance compared to other catalysts, achieving 100 % guaiacol conversion with 96.7 % selectivity for cyclohexane. This is due to the high porosity, improved Ru dispersion, catalyst oxygen vacancies, hydrogen spillover, and pronounced Lewis acidity, which collectively enhance the rate of adsorption of guaiacol molecules. Furthermore, the RM125T(p) catalyst exhibited extraordinary activity in the HDO of real bio-oils by converting phenolic oxygenates into high-grade hydrocarbons. The HDO reaction results for other model compounds such as phenol, anisole, catechol, and m-cresol, further confirmed the excellent catalytic efficiency of RM125T(p). Additionally, the reused catalyst retained its activity and structural integrity over multiple reaction cycles.

Original language	English
Article number	164392
Journal	Chemical Engineering Journal
Volume	517
DOIs	https://doi.org/10.1016/j.cej.2025.164392
State	Published - 1 Aug 2025

Keywords

Cyclohexane
Guaiacol
Hydrodeoxygenation
MIL-125(Ti)
PET plastic waste

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@article{da33ff81618044bbbfa0b74f5a5da34d,

title = "Utilizing waste PET plastics derived metal-organic framework catalyst for the hydrodeoxygenation of lignin phenols",

abstract = "In this study, the catalytic hydrodeoxygenation (HDO) of guaiacol using polyethylene terephthalate (PET)-derived RM125T(p) and TiO2 catalysts (anatase-Ru@TiO2(A), rutile-Ru@TiO2(R), and Ru@TiO2(P25)) under a hydrogen environment was investigated. Comparative analysis of selectivity and yield demonstrates that the M125T(p) support significantly enhances catalytic activity and selectivity. The PET-derived RM125T(p) catalyst exhibited superior performance compared to other catalysts, achieving 100 \% guaiacol conversion with 96.7 \% selectivity for cyclohexane. This is due to the high porosity, improved Ru dispersion, catalyst oxygen vacancies, hydrogen spillover, and pronounced Lewis acidity, which collectively enhance the rate of adsorption of guaiacol molecules. Furthermore, the RM125T(p) catalyst exhibited extraordinary activity in the HDO of real bio-oils by converting phenolic oxygenates into high-grade hydrocarbons. The HDO reaction results for other model compounds such as phenol, anisole, catechol, and m-cresol, further confirmed the excellent catalytic efficiency of RM125T(p). Additionally, the reused catalyst retained its activity and structural integrity over multiple reaction cycles.",

keywords = "Cyclohexane, Guaiacol, Hydrodeoxygenation, MIL-125(Ti), PET plastic waste",

author = "Yasin Khani and Avnish Kumar and Jinwoo Hwang and Ko, \{Chang Hyun\} and Ha, \{Jeong Myeong\} and Han, \{Jeong Woo\} and Park, \{Young Kwon\}",

note = "Publisher Copyright: {\textcopyright} 2025 Elsevier B.V.",

year = "2025",

month = aug,

day = "1",

doi = "10.1016/j.cej.2025.164392",

language = "English",

volume = "517",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

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TY - JOUR

T1 - Utilizing waste PET plastics derived metal-organic framework catalyst for the hydrodeoxygenation of lignin phenols

AU - Khani, Yasin

AU - Kumar, Avnish

AU - Hwang, Jinwoo

AU - Ko, Chang Hyun

AU - Ha, Jeong Myeong

AU - Han, Jeong Woo

AU - Park, Young Kwon

PY - 2025/8/1

Y1 - 2025/8/1

N2 - In this study, the catalytic hydrodeoxygenation (HDO) of guaiacol using polyethylene terephthalate (PET)-derived RM125T(p) and TiO2 catalysts (anatase-Ru@TiO2(A), rutile-Ru@TiO2(R), and Ru@TiO2(P25)) under a hydrogen environment was investigated. Comparative analysis of selectivity and yield demonstrates that the M125T(p) support significantly enhances catalytic activity and selectivity. The PET-derived RM125T(p) catalyst exhibited superior performance compared to other catalysts, achieving 100 % guaiacol conversion with 96.7 % selectivity for cyclohexane. This is due to the high porosity, improved Ru dispersion, catalyst oxygen vacancies, hydrogen spillover, and pronounced Lewis acidity, which collectively enhance the rate of adsorption of guaiacol molecules. Furthermore, the RM125T(p) catalyst exhibited extraordinary activity in the HDO of real bio-oils by converting phenolic oxygenates into high-grade hydrocarbons. The HDO reaction results for other model compounds such as phenol, anisole, catechol, and m-cresol, further confirmed the excellent catalytic efficiency of RM125T(p). Additionally, the reused catalyst retained its activity and structural integrity over multiple reaction cycles.

AB - In this study, the catalytic hydrodeoxygenation (HDO) of guaiacol using polyethylene terephthalate (PET)-derived RM125T(p) and TiO2 catalysts (anatase-Ru@TiO2(A), rutile-Ru@TiO2(R), and Ru@TiO2(P25)) under a hydrogen environment was investigated. Comparative analysis of selectivity and yield demonstrates that the M125T(p) support significantly enhances catalytic activity and selectivity. The PET-derived RM125T(p) catalyst exhibited superior performance compared to other catalysts, achieving 100 % guaiacol conversion with 96.7 % selectivity for cyclohexane. This is due to the high porosity, improved Ru dispersion, catalyst oxygen vacancies, hydrogen spillover, and pronounced Lewis acidity, which collectively enhance the rate of adsorption of guaiacol molecules. Furthermore, the RM125T(p) catalyst exhibited extraordinary activity in the HDO of real bio-oils by converting phenolic oxygenates into high-grade hydrocarbons. The HDO reaction results for other model compounds such as phenol, anisole, catechol, and m-cresol, further confirmed the excellent catalytic efficiency of RM125T(p). Additionally, the reused catalyst retained its activity and structural integrity over multiple reaction cycles.

KW - Cyclohexane

KW - Guaiacol

KW - Hydrodeoxygenation

KW - MIL-125(Ti)

KW - PET plastic waste

UR - https://www.scopus.com/pages/publications/105007513038

U2 - 10.1016/j.cej.2025.164392

DO - 10.1016/j.cej.2025.164392

M3 - Article

AN - SCOPUS:105007513038

SN - 1385-8947

VL - 517

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

M1 - 164392

ER -

Utilizing waste PET plastics derived metal-organic framework catalyst for the hydrodeoxygenation of lignin phenols

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