Investigation of the effect of acid treatment on textile waste carbonization and its properties

The fabrication of activated carbon from textile waste is an upcycling method to transform textile wastes into high value-added activated carbon that opened new opportunities for its applications in water treatment and energy storage applications due to its high specific surface area. Phosphoric aci...

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Main Author: Ching, Sherryl Zi Wei
Other Authors: Lai Changquan
Format: Final Year Project (FYP)
Language:English
Published: Nanyang Technological University 2024
Subjects:
Online Access:https://hdl.handle.net/10356/176071
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author Ching, Sherryl Zi Wei
author2 Lai Changquan
author_facet Lai Changquan
Ching, Sherryl Zi Wei
author_sort Ching, Sherryl Zi Wei
collection NTU
description The fabrication of activated carbon from textile waste is an upcycling method to transform textile wastes into high value-added activated carbon that opened new opportunities for its applications in water treatment and energy storage applications due to its high specific surface area. Phosphoric acid is usually used as the activator to promote the pores formation and enhance the specific surface area of the precursor. While the effect of the acids on activating textile waste had been extensively studies for homogenous material such as 100 % cotton fabric, there remains a gap in understanding its effect on blended materials. Hence, in this project, activated carbon was synthesised using a blended textiles of 70 % cotton-30 % polyester as the precursor. The textiles were chemically activated with vary acid concentration and analysed using characterisation techniques such as SEM, TGA, FTIR and BET to compare the morphology and specific surface area of the samples. The BET surface area increased by 95 % with the addition of 10 % acid concentration (AC-10) and reached the maximum of 1472 m2/g with 50 % acid concentration (AC-50). An improvement in carbon yield of 71 % was observed with AC-50 generating the highest carbon yield of 29.84 % and non-activated carbon (AC-0) having the lowest carbon yield of 17.35 %. However, a decline in the performance of water purification was observed with increasing acid concentration.AC-10 had the shortest time of 6 minutes while AC-50 took 26 minutes.
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spelling ntu-10356/1760712024-05-18T16:46:19Z Investigation of the effect of acid treatment on textile waste carbonization and its properties Ching, Sherryl Zi Wei Lai Changquan School of Materials Science and Engineering cqlai@ntu.edu.sg Engineering Chemical activation Carbonisation The fabrication of activated carbon from textile waste is an upcycling method to transform textile wastes into high value-added activated carbon that opened new opportunities for its applications in water treatment and energy storage applications due to its high specific surface area. Phosphoric acid is usually used as the activator to promote the pores formation and enhance the specific surface area of the precursor. While the effect of the acids on activating textile waste had been extensively studies for homogenous material such as 100 % cotton fabric, there remains a gap in understanding its effect on blended materials. Hence, in this project, activated carbon was synthesised using a blended textiles of 70 % cotton-30 % polyester as the precursor. The textiles were chemically activated with vary acid concentration and analysed using characterisation techniques such as SEM, TGA, FTIR and BET to compare the morphology and specific surface area of the samples. The BET surface area increased by 95 % with the addition of 10 % acid concentration (AC-10) and reached the maximum of 1472 m2/g with 50 % acid concentration (AC-50). An improvement in carbon yield of 71 % was observed with AC-50 generating the highest carbon yield of 29.84 % and non-activated carbon (AC-0) having the lowest carbon yield of 17.35 %. However, a decline in the performance of water purification was observed with increasing acid concentration.AC-10 had the shortest time of 6 minutes while AC-50 took 26 minutes. Bachelor's degree 2024-05-13T10:54:32Z 2024-05-13T10:54:32Z 2024 Final Year Project (FYP) Ching, S. Z. W. (2024). Investigation of the effect of acid treatment on textile waste carbonization and its properties. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/176071 https://hdl.handle.net/10356/176071 en application/pdf Nanyang Technological University
spellingShingle Engineering
Chemical activation
Carbonisation
Ching, Sherryl Zi Wei
Investigation of the effect of acid treatment on textile waste carbonization and its properties
title Investigation of the effect of acid treatment on textile waste carbonization and its properties
title_full Investigation of the effect of acid treatment on textile waste carbonization and its properties
title_fullStr Investigation of the effect of acid treatment on textile waste carbonization and its properties
title_full_unstemmed Investigation of the effect of acid treatment on textile waste carbonization and its properties
title_short Investigation of the effect of acid treatment on textile waste carbonization and its properties
title_sort investigation of the effect of acid treatment on textile waste carbonization and its properties
topic Engineering
Chemical activation
Carbonisation
url https://hdl.handle.net/10356/176071
work_keys_str_mv AT chingsherrylziwei investigationoftheeffectofacidtreatmentontextilewastecarbonizationanditsproperties