LAPSE:2023.5865
Published Article
LAPSE:2023.5865
Selective Adsorption of CR (VI) onto Amine-Modified Passion Fruit Peel Biosorbent
February 23, 2023
This study aimed to prepare surface amino-riched passion fruit peel (DAPFP) by amination reaction with low-cost biomaterials and use it as a biosorbent to adsorb Cr (VI). The specific physicochemical and structural properties of DAPFP were characterized by SEM, EDS, XRD, TG, Zeta, XPS, and FT-IR. The effects of pH value, initial concentration, adsorption time, coexisting ions, and temperature on the adsorption of Cr (VI) were systematically investigated. The results showed that within 90 min, DAPFP could reduce the concentration of Cr (VI) solution (1 mg/L−1) to an allowable safe level of drinking water (0.05 mg/L−1) specified by the World Health Organization. The adsorption process complies with pseudo-second-order kinetics and the Langmuir isotherm model. The adsorption capacity of the prepared biosorbent could reach 675.65 mg/g−1. The results of thermodynamic studies confirmed that the adsorption process was a self-discharging heat process. DAPFP also showed good reusability; even after being used repeatedly five times, it still showed excellent adsorption performance. FT-IR and XPS analyses showed that electrostatic attraction and reduction were the main reasons for the adsorption. By virtue of its low cost and excellent adsorption performance, DAPFP has a potential practical application as an adsorbent in treating Cr (VI) containing wastewater.
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Keywords
Adsorption, hexavalent chromium (Cr (VI)), passion fruit peel, reduction
Subject
Suggested Citation
Zhao X, Zheng J, You S, Du L, Liu C, Chen K, Liu Y, Ma L. Selective Adsorption of CR (VI) onto Amine-Modified Passion Fruit Peel Biosorbent. (2023). LAPSE:2023.5865
Author Affiliations
Zhao X: Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
Zheng J: Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; College of Environmental Science and Engineering, Guilin University of Technology,
You S: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Du L: School of Textiles, Henan University of Engineering, Zhengzhou 450007, China
Liu C: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Chen K: Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; College of Environmental Science and Engineering, Guilin University of Technology,
Liu Y: Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China [ORCID]
Ma L: Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; College of Environmental Science and Engineering, Guilin University of Technology,
Zheng J: Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; College of Environmental Science and Engineering, Guilin University of Technology,
You S: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Du L: School of Textiles, Henan University of Engineering, Zhengzhou 450007, China
Liu C: College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
Chen K: Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; College of Environmental Science and Engineering, Guilin University of Technology,
Liu Y: Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China [ORCID]
Ma L: Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; College of Environmental Science and Engineering, Guilin University of Technology,
Journal Name
Processes
Volume
9
Issue
5
First Page
790
Year
2021
Publication Date
2021-04-30
Published Version
ISSN
2227-9717
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PII: pr9050790, Publication Type: Journal Article
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LAPSE:2023.5865
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doi:10.3390/pr9050790
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[v1] (Original Submission)
Feb 23, 2023
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Feb 23, 2023
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