Loofah-Derived Adsorbent Column for Sustainable Purification of Oily Fumes: Synergistic Effect of Filtration and Adsorption

Jiayi Zhong, Bonian Zhou, Lei Liao (), Aimiao Qin, Shengpeng Mo, Xiaobin Zhou, Jianwen Wei, Hongqiang Wang, Yinming Fan and Huan Zhang
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Jiayi Zhong: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Bonian Zhou: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Lei Liao: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Aimiao Qin: College of Adsorbents Science and Engineering, Guilin University of Technology, Guilin 541004, China
Shengpeng Mo: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Xiaobin Zhou: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Jianwen Wei: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Hongqiang Wang: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Yinming Fan: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Huan Zhang: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China

Sustainability, 2025, vol. 17, issue 9, 1-22

Abstract: Loofah is deemed a promising candidate for the purification of oily fumes. Our research utilized H 3 PO 4 for initial activation of loofah (TCS), producing loofahderived carbon (TGSC-0). Subsequently, Fenton’s reagent was utilized for further modification to yield loofah-derived carbon (TGSC-1). TGSC-1 was used in the form of an adsorption column to simultaneously treat multiple pollutants from oily fumes, with surface Fe 3+ , Fe 2+ , and H 2 O 2 catalyzing ·OH and ·OOH generation to enhance adsorption of the oils and non-methane hydrocarbon (NMHC). Characterization showed that the specific surface area of TGSC-1 was 427.97 m 2 /g and pore sizes ranged from 0.50 to 3.50 nm. The rich mesoporous and macroporous structures of TGSC-1 enhanced the capability of carbon layer adsorption. Langmuir adsorption kinetics suggested that adsorption proceeded via monolayer adsorption pathways, while L-τ lines revealed shorter protective effect times for adsorbing PM 10 and PM 2.5 than for oils and NMHC. The results indicated that TGSC-1 exhibited maximum saturated adsorption capacities of 25.79, 13.02, 9.82, and 15.99 mg/g for oils, NMHC, PM 2.5 , and PM 10 , respectively. Increasing resistance of the adsorption column exhibited a notable synergistic effect of filtration and adsorption in treating oily fumes. It combines renewable materials with low-energy processing, delivering eco-economic benefits for sustainable development and application.

Keywords: loofah-derived carbon; oily fumes; Fenton’s reagent modification; synergistic effect; bed layer filtration; adsorption; air pollution control; sustainable development (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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