Research Article Removal of Heavy Metal Ions (Pb 2+ ,Co 2+ , and Cd 2+ ) by Activated Carbon from Cypress Fruit: An Investigation of Kinetics, Thermodynamics, and Isotherms Alaa M. Al-Ma’abreh , Dareen A. Hmedat , Gada Edris , and Mariam A. Hamed Department of Chemistry, Faculty of Science, Isra University, P.O. Box 22, Amman 11622, Jordan Correspondence should be addressed to Alaa M. Al-Ma’abreh; alaa.almaabreh@iu.edu.jo Received 30 October 2023; Revised 5 April 2024; Accepted 10 April 2024; Published 25 April 2024 Academic Editor: Liviu Mitu Copyright © 2024 Alaa M. Al-Ma’abreh et al. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. In this study, activated carbon cloth (ACC) derived from cypress fruit was employed to investigate the adsorption of Pb 2+ , Cd 2+ , and Co 2+ from synthetic aqueous systems. Te correlation between adsorption features (pH, adsorbent dosage, temperature, initial ion concentration, and contact time) and adsorbent removal efciency was investigated. Analysis by FT-IR, SEM, and EDS was employed to confrm the adsorption of metal ions onto the ACC. Results revealed the best adsorption efciencies for heavy metal ions were attained at pH = 7, 11, 6; the adsorbent dosage of 0.06, 0.08, and 0.04 g for Pb 2+ ,Cd 2+ , and Co 2+ , respectively; the ion initial concentration of 50 mg·L −1 for Pb 2+ and 70 mg·L −1 for both Co 2+ and Cd 2+ ; and contact time of 90 minutes for both Pb 2+ and Co 2+ and 120 minutes for Cd 2+ . Kinetic studies exposed the second-order adsorption of all aforementioned heavy metal ions. Additionally, the equilibrium data were ftted by Langmuir and Freundlich’s isotherms, while the former performed better than the latter. Te maximum adsorption capacity values for Pb 2+ ,Co 2+ ,andCd 2+ were attained to 81.87, 55.30, and 117.3mg·g −1 , respectively. Considering the thermodynamic data, the studied processes were exothermic and spontaneous. 1. Introduction Water pollution is a global environmental challenge that continues to pose signifcant threats to the well-being ofboth ecosystems and human populations. As one of the most vital resources on our planet, water serves as a lifeline for all living organisms, sustaining biodiversity, agriculture, industry, and domestic needs [1]. However, human activities, in- dustrialization, agricultural practices, and improper waste disposal have led to the contamination of water bodies with various pollutants. Tese contaminants include a broad variety of materials that end up in rivers, lakes, seas, and groundwater sources, such as heavy metals, hazardous compounds, fertilizers, and microplastics [2]. Te efects of water pollution are extensive, leading to the deterioration of aquatic environments, a decline in biodiversity, and the threat to many species. Furthermore, drinking tainted water puts one’s health in danger for both acute and chronic illnesses. Since the level of water pollution is still rising, strong scientifc research, environmentally friendly man- agement techniques, and cooperative eforts at the local, national, and international levels are all needed to address this situation [3]. An urgent environmental worry nowadays is heavy metal pollution, which is brought on by the dis- charge of hazardous elements like lead (Pb), cobalt (Co), chromium (Cr), mercury (Hg), and cadmium (Cd) into the environment. Because they are the result of several an- thropogenic activities, these heavy metals are extremely dangerous to natural systems and human health. It is well known that hazardous elements may bioaccumulate in or- ganisms and be persistent in the environment. Tis can have detrimental consequences on human organs, such as the kidneys, liver, and nervous system. Furthermore, the im- balance of an ecosystem is upset by heavy metal contami- nation, which hurts plant growth, soil fertility, and aquatic life. Providing efcient mitigation solutions requires an Hindawi Journal of Chemistry Volume 2024, Article ID 1984821, 13 pages https://doi.org/10.1155/2024/1984821