@article{ART003342688},
author={Utami Maisari and Sholidhyawati Is and Musawwa Muhammad Miqdam and Karna Wijaya and Kim Sung Su and Chandrasekaran Murugesan and Ovi Debnath and Alarifi Saud},
title={Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste},
journal={Carbon Letters},
issn={1976-4251},
year={2026},
volume={36},
number={2},
pages={823-839},
doi={10.1007/s42823-026-01031-8}
TY - JOUR
AU - Utami Maisari
AU - Sholidhyawati Is
AU - Musawwa Muhammad Miqdam
AU - Karna Wijaya
AU - Kim Sung Su
AU - Chandrasekaran Murugesan
AU - Ovi Debnath
AU - Alarifi Saud
TI - Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste
JO - Carbon Letters
PY - 2026
VL - 36
IS - 2
PB - Korean Carbon Society
SP - 823
EP - 839
SN - 1976-4251
AB - Pharmaceutical waste directly contributes to environmental pollution. Ibuprofen is one of the pharmaceutical wastes that often ends up in the environment without proper treatment, causing various harmful effects. Here, carbon quantum dots/titanium dioxide (CQDs/TiO₂) nanocomposites synthesis as a photocatalyst for ibuprofen photodegradation has been investigated. This research consists of 3 steps: the first was initiated with CQD synthesis using the hydrothermal method derived from banana peel extract, followed by the synthesis of TiO2 rutile and anatase with banana peel extract as the reducing agent. The last was CQDs/TiO2 nanocomposites synthesis using a hydrothermal method. The CQDs/TiO2 nanocomposites obtained were characterized by TEM, FTIR, XRD, SEM-EDX, and UV-Visible spectroscopy. Bright green fluorescence of CQDs was observed under UV irradiation with a average size of 9.5 nm. The nanocomposite of CQD/TiO2 rutile and CQD/TiO2 anatase exhibited crystalline structures, each displaying a diffraction pattern of rutile and anatase, indicating high purity. However, CQDs/TiO2 anatase has a smaller size of 8 nm than CQD/TiO2 rutile of 132 nm. Therefore, the CQDs/TiO2 anatase nanocomposite showed the most effectiveness as a photocatalyst in degrading ibuprofen, with a photodegradation percentage of up to 53.656% at pH 3, a slight photocatalyst mass of 0.1 g, and a short photodegradation time of 30 min.
KW - Banana peel CQDs/TiO2 Ibuprofen photodegradation Nanocomposite
DO - 10.1007/s42823-026-01031-8
ER -
Utami Maisari, Sholidhyawati Is, Musawwa Muhammad Miqdam, Karna Wijaya, Kim Sung Su, Chandrasekaran Murugesan, Ovi Debnath and Alarifi Saud. (2026). Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste. Carbon Letters, 36(2), 823-839.
Utami Maisari, Sholidhyawati Is, Musawwa Muhammad Miqdam, Karna Wijaya, Kim Sung Su, Chandrasekaran Murugesan, Ovi Debnath and Alarifi Saud. 2026, "Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste", Carbon Letters, vol.36, no.2 pp.823-839. Available from: doi:10.1007/s42823-026-01031-8
Utami Maisari, Sholidhyawati Is, Musawwa Muhammad Miqdam, Karna Wijaya, Kim Sung Su, Chandrasekaran Murugesan, Ovi Debnath, Alarifi Saud "Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste" Carbon Letters 36.2 pp.823-839 (2026) : 823.
Utami Maisari, Sholidhyawati Is, Musawwa Muhammad Miqdam, Karna Wijaya, Kim Sung Su, Chandrasekaran Murugesan, Ovi Debnath, Alarifi Saud. Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste. 2026; 36(2), 823-839. Available from: doi:10.1007/s42823-026-01031-8
Utami Maisari, Sholidhyawati Is, Musawwa Muhammad Miqdam, Karna Wijaya, Kim Sung Su, Chandrasekaran Murugesan, Ovi Debnath and Alarifi Saud. "Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste" Carbon Letters 36, no.2 (2026) : 823-839.doi: 10.1007/s42823-026-01031-8
Utami Maisari; Sholidhyawati Is; Musawwa Muhammad Miqdam; Karna Wijaya; Kim Sung Su; Chandrasekaran Murugesan; Ovi Debnath; Alarifi Saud. Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste. Carbon Letters, 36(2), 823-839. doi: 10.1007/s42823-026-01031-8
Utami Maisari; Sholidhyawati Is; Musawwa Muhammad Miqdam; Karna Wijaya; Kim Sung Su; Chandrasekaran Murugesan; Ovi Debnath; Alarifi Saud. Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste. Carbon Letters. 2026; 36(2) 823-839. doi: 10.1007/s42823-026-01031-8
Utami Maisari, Sholidhyawati Is, Musawwa Muhammad Miqdam, Karna Wijaya, Kim Sung Su, Chandrasekaran Murugesan, Ovi Debnath, Alarifi Saud. Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste. 2026; 36(2), 823-839. Available from: doi:10.1007/s42823-026-01031-8
Utami Maisari, Sholidhyawati Is, Musawwa Muhammad Miqdam, Karna Wijaya, Kim Sung Su, Chandrasekaran Murugesan, Ovi Debnath and Alarifi Saud. "Sustainable ibuprofen degradation using eco-friendly CQDs/TiO2 nanocomposites from banana peels waste" Carbon Letters 36, no.2 (2026) : 823-839.doi: 10.1007/s42823-026-01031-8
