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Hao YS, Othman N, Zaini MAA. Waste newspaper as cellulose resource of activated carbon by sodium salts for methylene blue and congo red removal. Int J Biol Macromol 2024; 277:134353. [PMID: 39089559 DOI: 10.1016/j.ijbiomac.2024.134353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/02/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
The work was aimed at evaluating the adsorptive properties of waste newspaper (WN) activated carbons chemically produced using sodium salts for methylene blue (MB) and congo red (CR) removal. The activated carbons, designated as AC1, AC2, AC3 and AC4 were prepared through impregnation with NaH2PO4, Na2CO3, NaCl and NaOH, respectively and activation at 500 °C for 1 h. The activated carbons were characterized for surface chemistry, thermal stability, specific area, morphology and composition. The AC1 with a surface area of 917 m2/g exhibits a greater MB capacity of 651 mg/g. Meanwhile, a greater CR capacity was recorded by AC2 at 299 mg/g. The pseudo-second order model fitted well with the kinetic data, while the equilibrium data could be described by Langmuir model. The thermodynamic parameters, i.e.., positive ΔH°, negative ΔG° and positive ΔS° suggest that the adsorption of dyes is endothermic, spontaneous and feasible at high solution temperature. To conclude, WN is a potential cellulose source for producing activated carbon, while NaH2PO4 activation could be employed to convert WN into activated carbon for effective dye wastewater treatment.
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Affiliation(s)
- Yeo Shi Hao
- Centre of Lipids Engineering & Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - Norasikin Othman
- Centre of Lipids Engineering & Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - Muhammad Abbas Ahmad Zaini
- Centre of Lipids Engineering & Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia.
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Obayomi KS, Yon Lau S, Danquah MK, Zhang J, Chiong T, Meunier L, Rahman MM. Selective adsorption of organic dyes from aqueous environment using fermented maize extract-enhanced graphene oxide-durian shell derived activated carbon composite. CHEMOSPHERE 2023; 339:139742. [PMID: 37562502 DOI: 10.1016/j.chemosphere.2023.139742] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/24/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Abstract
A secure aquatic environment is essential for both aquatic and terrestrial life. However, rising populations and the industrial revolution have had a significant impact on the quality of the water environment. Despite the implementation of strong and adapted environmental policies for water treatment worldwide, the issue of organic dyes in wastewater remains challenging. Thus, this study aimed to develop an efficient, cost-effective, and sustainable material to treat methylene blue (MB) in an aqueous environment. In this research, maize extract solution (MES) was utilized as a green cross-linker to induce precipitation, conjugation, and enhance the adsorption performance of graphene oxide (GO) cross-linked with durian shell activated carbon (DSAC), resulting in the formation of a GO@DSAC composite. The composite was investigated for its adsorptive performance toward MB in aqueous media. The physicochemical characterization demonstrated that the cross-linking method significantly influenced the porous structure and surface chemistry of GO@DSAC. BET analysis revealed that the GO@DSAC exhibited dominant mesopores with a surface area of 803.67 m2/g. EDX and XPS measurements confirmed the successful cross-linking of GO with DSAC. The adsorption experiments were well described by the Harkin-Jura model and they followed pseudo-second order kinetics. The maximum adsorption capacity reached 666.67 mg/g at 318 K. Thermodynamic evaluation indicated a spontaneous, feasible, and endothermic in nature. Regenerability and reusability investigations demonstrated that the GO@DSAC composite could be reused for up to 10 desorption-adsorption cycles with a removal efficiency of 81.78%. The selective adsorptive performance of GO@DSAC was examined in a binary system containing Rhodamine B (RhB) and methylene orange (MO). The results showed a separation efficiency (α) of 98.89% for MB/MO and 93.66% for MB/RhB mixtures, underscoring outstanding separation capabilities of the GO@DSAC composite. Overall, the GO@DSAC composite displayed promising potential for the effective removal of cationic dyes from wastewater.
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Affiliation(s)
- Kehinde Shola Obayomi
- Department of Chemical Engineering, Curtin University, CDT 250, 98009, Miri, Sarawak, Malaysia; Institute for Sustainable Industries and Liveable Cities, Victoria University, Werribee, VIC, 3030, Australia.
| | - Sie Yon Lau
- Department of Chemical Engineering, Curtin University, CDT 250, 98009, Miri, Sarawak, Malaysia
| | - Michael K Danquah
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, United States
| | - Jianhua Zhang
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Werribee, VIC, 3030, Australia
| | - Tung Chiong
- Department of Chemical Engineering, Curtin University, CDT 250, 98009, Miri, Sarawak, Malaysia
| | - Louise Meunier
- Department of Chemical Engineering, Queen's University, Kingston, K7L 3N6, Canada
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia; Department of General Educational Development, Faculty of Science and Information Technology, Daffodil International University, Birulia, Dhaka 1216, Bangladesh
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Mandal S, Hwang S, Marpu SB, Omary MA, Prybutok V, Shi SQ. Bioinspired Synthesis of Silver Nanoparticles for the Remediation of Toxic Pollutants and Enhanced Antibacterial Activity. Biomolecules 2023; 13:1054. [PMID: 37509090 PMCID: PMC10377291 DOI: 10.3390/biom13071054] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/14/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
This research presents a novel and environmentally friendly approach for the synthesis of multifunctional nanobiocomposites for the efficient removal of toxic heavy metal and dye, as well as the disinfection of wastewater microorganisms. The nanobiocomposites (KAC-CS-AgNPs) were prepared by incorporating photochemically generated silver nanoparticles (AgNPs) within a chitosan (CS)-modified, high-surface-area activated carbon derived from kenaf (KAC), using a unique self-activation method. The even distribution of AgNPs was visible in the scanning electron microscopy images and a Fourier transform infra red study demonstrated major absorption peaks. The experimental results revealed that KA-CS-AgNPs exhibited exceptional adsorption efficiency for copper (Cu2+), lead (Pb2+), and Congo Red dye (CR), and showed potent antibacterial activity against Staphylococcus aureus and Escherichia coli. The maximum adsorption capacity (mg g-1) of KAC-CS-AgNPs was 71.5 for Cu2+, 72.3 for Pb2+, and 75.9 for CR, and the adsorption phenomena followed on the Freundlich and Langmuir isotherm models and the second-order kinetic model (R2 > 0.99). KAC-CS-AgNPs also exhibited excellent reusability of up to four consecutive cycles with minor losses in adsorption ability. The thermodynamic parameters indicated that the adsorption process was spontaneous and endothermic in nature. The bacterial inactivation tests demonstrated that KAC-CS-AgNPs had a strong bactericidal effect on both E. coli and S. aureus, with MIC calculated for E. coli and S. aureus as 32 µg mL-1 and 44 µg mL-1, respectively. The synthesized bioinspired nanocomposite KAC-CS-AgNPs could be an innovative solution for effective and sustainable wastewater treatment and has great potential for commercial applications.
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Affiliation(s)
- Sujata Mandal
- Ingram School of Engineering, Texas State University, San Marcos, TX 78666, USA
| | - Sangchul Hwang
- Ingram School of Engineering, Texas State University, San Marcos, TX 78666, USA
| | - Sreekar B Marpu
- Department of Chemistry, University of North Texas, Denton, TX 76207, USA
| | - Mohammad A Omary
- Department of Chemistry, University of North Texas, Denton, TX 76207, USA
| | - Victor Prybutok
- G. Brint Ryan College of Business, University of North Texas, Denton, TX 76207, USA
| | - Sheldon Q Shi
- Department of Mechanical Engineering, University of North Texas, Denton, TX 76207, USA
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Ismail MS, Yahya MD, Auta M, Obayomi KS. Facile preparation of amine -functionalized corn husk derived activated carbon for effective removal of selected heavy metals from battery recycling wastewater. Heliyon 2022; 8:e09516. [PMID: 35663746 PMCID: PMC9157000 DOI: 10.1016/j.heliyon.2022.e09516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/17/2022] [Accepted: 05/17/2022] [Indexed: 01/22/2023] Open
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