Bentonite-Clay/CNT-Based Nano Adsorbent for Textile Wastewater Treatment: Optimization of Process Parameters Article Swipe

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Tayyaba Jamil , Saima Yasin , Naveed Ramzan , Hafiz Muhammad Zaheer Aslam , Amir Ikhlaq , Abdul Mannan Zafar , Ashraf Aly Hassan ·

YOU? · · 2023 · Open Access · · DOI: https://doi.org/10.3390/w15183197

Dyes are the most carcinogenic organic compounds that are discarded by most of the textile industries without any prior treatment, which is harmful for the environment. This study aims to develop a bentonite-clay/carbon-nanotube (CNT)-based adsorbent to treat textile wastewater for water sustainability. The preliminary and post-characterization of adsorbent involves scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and Brunauer–Emmett–Teller (BET) and energy-dispersive X-ray (EDX) analysis to determine the changes in surface morphology, functional group, and surface area of the adsorbent. Linear and nonlinear isotherms and kinetic studies were performed to explore the sorption mechanism. The results show that the nonlinear form of the Langmuir isotherm best fits adsorption with a qmax of 550 mg/g. The adsorption followed the nonlinear pseudo-first-order kinetics, favoring chemisorption with R2 ≈ 1 and X2 = 0.22. Maximum dye removal (89.9%) was achieved under the optimum conditions of pH 3, an adsorbent dose of 100 mg, and a contact time of 120 min, with an initial COD concentration of 1140 mgL−1. This study has demonstrated the successful application of a bentonite-clay/CNT-based adsorbent on textile wastewater treatment.

Related Topics

Adsorption

Bentonite

Langmuir Adsorption Model

Fourier-Transform Infrared Spectroscopy

Materials Science

Carbon Nanotube

Chemical Engineering

Scanning Electron Microscope

Environmental Engineering

Environmental Science

Engineering

Concepts

Adsorption Bentonite Sorption Langmuir adsorption model Fourier transform infrared spectroscopy Chemisorption Materials science Carbon nanotube Wastewater Chemical engineering Scanning electron microscope Nuclear chemistry Chemistry Nanotechnology Composite material Organic chemistry Environmental engineering Environmental science Engineering

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Type: article
Language: en
Landing Page: https://doi.org/10.3390/w15183197
PDF: https://www.mdpi.com/2073-4441/15/18/3197/pdf?version=1694150904
OA Status: gold
Cited By: 24
References: 57
Related Works: 10
OpenAlex ID: https://openalex.org/W4386559113

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DOI: https://doi.org/10.3390/w15183197

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Title: Bentonite-Clay/CNT-Based Nano Adsorbent for Textile Wastewater Treatment: Optimization of Process Parameters

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Type: article

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Language: en

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Publication year: 2023

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Publication date: 2023-09-07

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Authors: Tayyaba Jamil, Saima Yasin, Naveed Ramzan, Hafiz Muhammad Zaheer Aslam, Amir Ikhlaq, Abdul Mannan Zafar, Ashraf Aly Hassan

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Landing page: https://doi.org/10.3390/w15183197

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Concepts: Adsorption, Bentonite, Sorption, Langmuir adsorption model, Fourier transform infrared spectroscopy, Chemisorption, Materials science, Carbon nanotube, Wastewater, Chemical engineering, Scanning electron microscope, Nuclear chemistry, Chemistry, Nanotechnology, Composite material, Organic chemistry, Environmental engineering, Environmental science, Engineering

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Cited by: 24

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Citations by year (recent): 2025: 9, 2024: 12, 2023: 3

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