eprintid: 14634
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/46/34
datestamp: 2023-11-10 03:29:13
lastmod: 2023-11-10 03:29:13
status_changed: 2023-11-10 01:57:25
type: article
metadata_visibility: show
creators_name: Zainal Abidin, N.H.
creators_name: Shafie, S.N.A.
creators_name: Suhaimi, H.
creators_name: Sambudi, N.S.
creators_name: Sapiaa Md Nordin, N.A.H.
title: Incorporation of carboxyl and amino functionalized carbon quantum dots in thin film membrane for nanofiltration
ispublished: pub
keywords: Atomic force microscopy; Carbon; Composite membranes; Field emission microscopes; Fourier transform infrared spectroscopy; Hydrogen bonds; Molecules; Nanocomposite films; Nanocomposites; Nanocrystals; Nanofiltration; Nanofiltration membranes; Polyamides; Scanning electron microscopy; Semiconductor quantum dots; Thin films, Carbon quantum dots; Fabrication of thin films; Functionalizations; Functionalized; Nano-fillers; Nanocomposite membranes; Property; Rice husk; Thin film membrane; Thin-film nanocomposites, Hydrophilicity
note: cited By 11
abstract: Fabrication of thin film nanocomposite membrane (TFN) with carbon quantum dots (CQDs) as nanofiller has gained a wide attention due to the promising properties of the CQDs to enhance the membrane permeability. Synthesis of CQDs and their functionalization with both carboxyl and amino groups are originated from rice husks as the precursor. Fourier-Transform Infrared Spectroscopy (FTIR) analysis shows that CQDs contain oxygen-containing groups that allow hydrogen bonding with water molecules. Zeta potential shows that the incorporation of CQDs produces highly negative charged membranes, while Field Emission Scanning Electron Microscopy (FESEM) and Atomic Force Microscopy (AFM) results indicate that the introduction of the nanoparticles alters the surface properties of the fabricated membranes. Photoluminescence (PL) analysis proves that CQDs are present in the polyamide (PA) layer which describes the unique characteristic of the CQDs. The presence of CQDs in TFN membranes assists in enhancing the performance of pristine thin film composite (TFC) membrane in both flux and salt rejection with values around 35 L/m2 h and 90, respectively. © 2021 The Authors
date: 2021
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107941896&doi=10.1016%2fj.polymertesting.2021.107270&partnerID=40&md5=db9b31a50145e5fe02b24a2e1e1615c7
id_number: 10.1016/j.polymertesting.2021.107270
full_text_status: none
publication: Polymer Testing
volume: 100
refereed: TRUE
issn: 01429418
citation:   Zainal Abidin, N.H. and Shafie, S.N.A. and Suhaimi, H. and Sambudi, N.S. and Sapiaa Md Nordin, N.A.H.  (2021) Incorporation of carboxyl and amino functionalized carbon quantum dots in thin film membrane for nanofiltration.  Polymer Testing, 100.   ISSN 01429418