{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T04:36:16Z","timestamp":1785731776244,"version":"3.56.0"},"reference-count":45,"publisher":"IWA Publishing","issue":"2","license":[{"start":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T00:00:00Z","timestamp":1769731200000},"content-version":"vor","delay-in-days":9,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005328","name":"Female Center for Scientific and Medical Colleges, King Saud University","doi-asserted-by":"publisher","award":["ORF-RC-2025-0122"],"award-info":[{"award-number":["ORF-RC-2025-0122"]}],"id":[{"id":"10.13039\/501100005328","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["iwaponline.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,2,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Bromide contamination in water sources poses significant health and environmental concerns due to its transformation into carcinogenic disinfection byproducts (DBPs) such as bromate during water treatment. In this study, a silver tungstate-modified magnesium oxide nanocomposite (Ag2WO4\/MgO, denoted as AgW@MgO) was synthesized and applied as an efficient adsorbent for bromide removal from aqueous solutions. The material was thoroughly characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Fourier-transform infrared spectroscopy (FT-IR), and Brunauer\u2013Emmett\u2013Teller (BET) surface analysis. Batch adsorption experiments were conducted to evaluate the influence of adsorbent dose, initial bromide concentration, contact time, and pH on removal efficiency. The adsorption equilibrium data were best described by the Langmuir isotherm (R2 = 0.9603), with a maximum capacity of 1.01 mg g\u22121, while the kinetics followed a pseudo-second-order model (R2 = 0.9718), indicating chemisorption as the dominant mechanism. Intra-particle diffusion analysis further confirmed multi-step adsorption behavior. Regeneration studies demonstrated that AgW@MgO maintained up to 50% removal efficiency after four adsorption\u2013desorption cycles. Application to real groundwater samples showed complete bromide removal, highlighting the material's potential for practical water treatment. Overall, AgW@MgO emerges as a cost-effective and sustainable adsorbent with high efficiency, reusability, and environmental relevance for bromide elimination from contaminated waters.<\/jats:p>","DOI":"10.2166\/wh.2026.187","type":"journal-article","created":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T06:48:09Z","timestamp":1769755689000},"page":"189-203","update-policy":"https:\/\/doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":1,"title":["Silver tungstate\/magnesium oxide nanocomposite as a high-performance adsorbent for bromide removal from aqueous systems"],"prefix":"10.2166","volume":"24","author":[{"given":"Awaad","family":"H. A. Aboterika","sequence":"first","affiliation":[{"name":"a Central Laboratory, Faculty of Science, Ain Shams University, Cairo 11566, Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Osamah","family":"M. A. Shahlol","sequence":"additional","affiliation":[{"name":"b Faculty of Petroleum Gas and Renewable Energy Engineering, Zawia University, Az-Z\u0101wiyah, Libya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7502-6668","authenticated-orcid":false,"given":"Ayman H.","family":"Kamel","sequence":"additional","affiliation":[{"name":"c Chemistry Department, College of Science, University of Bahrain, Sakhir 32038, Bahrain"},{"name":"d Chemistry Department, Faculty of Science, Ain Shams University, P.O. Box 11655, Cairo, Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hazem","family":"A. Ghabbour","sequence":"additional","affiliation":[{"name":"e School of Health and Biomedical Sciences, RMIT University, Melbourne, Victoria 3083, Australia"},{"name":"f Department of Medicinal Chemistry, Faculty of Pharmacy, University of Mansoura, Mansoura 35516, Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdulrahman","family":"A. Almehizia","sequence":"additional","affiliation":[{"name":"g Drug Exploration and Development Chair (DEDC), Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmed","family":"M. Naglah","sequence":"additional","affiliation":[{"name":"g Drug Exploration and Development Chair (DEDC), Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"945","published-online":{"date-parts":[[2026,1,21]]},"reference":[{"key":"2026031903221792000_JWH-D-25-00187C1","doi-asserted-by":"crossref","first-page":"42622","DOI":"10.1021\/acsomega.3c05337","article-title":"Removal of toxic lead from wastewater by Lupinus albus seed hull","volume":"8","year":"2023","journal-title":"ACS Omega"},{"key":"2026031903221792000_JWH-D-25-00187C2","doi-asserted-by":"crossref","first-page":"103312","DOI":"10.1016\/j.jwpe.2022.103312","article-title":"Development of novel nano-\u03b3-Al2O3 adsorbent from waste aluminum foil for the removal of boron and bromide from aqueous solution","volume":"50","year":"2022","journal-title":"J. Water Process Eng."},{"key":"2026031903221792000_JWH-D-25-00187C3","unstructured":"Amy\n            G.\n          , SiddiquiM., ZhaiW., DeBrouxJ. & OdemW. (1993) Nation-wide survey of bromide ion concentrations in drinking water sources. In Proc. 1993 AWWA Ann. Conf., San Antonio, Texas."},{"key":"2026031903221792000_JWH-D-25-00187C4","doi-asserted-by":"crossref","first-page":"373","DOI":"10.1016\/j.physa.2015.03.052","article-title":"Statistical physics studies of multilayer adsorption isotherm in food materials and pore size distribution","volume":"432","year":"2015","journal-title":"Physica A"},{"issue":"Part D","key":"2026031903221792000_JWH-D-25-00187C5","first-page":"124218","article-title":"Bio-based plant-extract facilitated MgO nanocatalyst for the transformation of agriculture waste derived-feedstock into biodiesel and as nano-additive in diesel engine","volume":"256","year":"2026","journal-title":"Renew. 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