Kabiru Haruna , Abdulrahman Musa , Muhammad Abubakar Lawal , Zahradeen Muhammad , Tawfik A. Saleh
{"title":"Experimental and DFT study of the corrosion inhibition potential of expired diclofenac potassium on stainless steel in hydrochloric acid solution","authors":"Kabiru Haruna , Abdulrahman Musa , Muhammad Abubakar Lawal , Zahradeen Muhammad , Tawfik A. Saleh","doi":"10.1016/j.esi.2025.04.001","DOIUrl":"10.1016/j.esi.2025.04.001","url":null,"abstract":"<div><div>This study investigates, for the first time, the efficacy of expired diclofenac potassium (DFP) as a corrosion inhibitor for 304 L stainless steel in 1 M HCl, mimicking industrial acid cleaning conditions. A comprehensive evaluation combining weight loss analyses, electrochemical analyses at varying temperatures (25, 40, and 60 °C), and advanced surface characterization (SEM, EDS, 3D profilometry, FTIR). DFP revealed about 90 % inhibition efficiency at a concentration of 500 ppm at all the studied temperatures. DFP acted as a mixed-type inhibitor, adhering to the Langmuir isotherm and forming a uniform protective monolayer. Density Functional Theory (DFT) calculations indicated synergistic physisorption and chemisorption, with electron transfer primarily involving the aromatic and amine regions of the molecule. This dual adsorption mechanism was supported by HOMO, LUMO, and MEP analyses. The robust inhibition performance, coupled with the potential for repurposing expired pharmaceuticals, highlights DFP as a cost-effective, eco-friendly alternative for corrosion prevention in pipelines, heat exchangers, and desalination systems, aligning industrial and environmental priorities. This study demonstrates the dual advantages of utilizing expired pharmaceuticals for industrial corrosion prevention, emphasizing both economic and ecological benefits. The integration of experimental and computational methods ensures a thorough understanding of DFP’s inhibition capabilities</div></div>","PeriodicalId":100486,"journal":{"name":"Environmental Surfaces and Interfaces","volume":"3 ","pages":"Pages 134-145"},"PeriodicalIF":0.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haixia He , Dihao Bai , Zidu Yan , Lei Sun , Danyi Shao , Xiangjuan Yuan
{"title":"Efficient activation of PMS via sandwich-like N-encapsulated cobalt-doped MXene composites: Structural properties and degradation mechanisms","authors":"Haixia He , Dihao Bai , Zidu Yan , Lei Sun , Danyi Shao , Xiangjuan Yuan","doi":"10.1016/j.esi.2025.03.002","DOIUrl":"10.1016/j.esi.2025.03.002","url":null,"abstract":"<div><div>Iopamidol (IPM), a widely used iodinated contrast agent, has been increasingly detected as an environmental pollutant, raising concerns due to its persistence and potential ecological and health risks. To address this issue, various amounts of Co with nitrogen coating were <em>in-situ</em> decorated on the surface of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene nanosheets (denoted as C<sub>x</sub>MN) to efficiently activate of peroxymonosulfate (PMS) for degradation of IPM. The C<sub>x</sub>MN composites were thoroughly characterized, revealing that the introduction of Co increased the interlayer spacing of C<sub>x</sub>MN and give it a sandwich-like appearance. The C<sub>0.2</sub>MN catalyst, with a balanced Co doping amount, demonstrated superior performance in activating PMS. Under a wide range of pH, 99.8 % of IPM was degraded in 10 min with <em>k</em><sub><em>obs</em></sub> of 0.3439 min<sup>−1</sup> in C<sub>0.2</sub>MN /PMS system. Quenching experiments, EPR analysis, and XPS characterization revealed hydroxyl radical (<sup>•</sup>OH), sulfate radical (SO<sub>4</sub><sup>•-</sup>), singlet oxygen (<sup>1</sup>O<sub>2</sub>) as the major reactive species responsible for the degradation of IPM in the C<sub>0.2</sub>MN/PMS system, formed through the co-action of (i) Co<sup>3+</sup>/Co<sup>2+</sup> redox cycle, (ii) O<sub>V</sub>, (iii) Co<sup>4+</sup>, and (iv) MXene support. The degradation pathways of IPM were proposed based on the identification of its intermediates in C<sub>0.2</sub>MN/PMS system and the DFT calculations. Additionally, the ecotoxicity of IPM and its intermediates was evaluated using ECOSAR model. Furthermore, C<sub>0.2</sub>MN demonstrated excellent stability and reusability after four cycling experiments, and the long-term applicability of C<sub>0.2</sub>MN/PMS system was comprehensively estimated in fixed-bed column experiments. This research has significant potential for water treatment and pollutant removal applications.</div></div>","PeriodicalId":100486,"journal":{"name":"Environmental Surfaces and Interfaces","volume":"3 ","pages":"Pages 112-121"},"PeriodicalIF":0.0,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Facile preparation of tannic acid functionalized phosphogypsum for efficient removal of heavy metal in wastewater","authors":"Wei Hu, Juan Zhang, Jinyi Chen","doi":"10.1016/j.esi.2025.03.001","DOIUrl":"10.1016/j.esi.2025.03.001","url":null,"abstract":"<div><div>Phosphogypsum (PG) as a by-product is produced by the industrial wet phosphoric acid production process. The environmental-friendly disposal and recycling of PG holds significant importance within the domain of solid waste management. In this research, due to its unique property of versatile molecular glue and the strong metal-chelating ability, polyphenol tannic acid (TA) was employed as an organic modifier to functionalize inert PG to prepare TA@PG adsorbent for effective removal of heavy metal in wastewater. The morphology, structure, thermal stability and surface charge of TA@PG adsorbent was characterized and tested. The effects of adsorption conditions, adsorption isotherms and adsorption kinetics were also studied in detail. In addition, the adsorption mechanisms were also discussed by XPS analysis, which might involve in electrostatic interaction, ion exchange and complexation interaction. The prepared TA@PG adsorbent exhibited excellent adsorption performance with removal rate up to 100% and maximum adsorption capacity up to 221.72 mg·g<sup>−1</sup> for heavy metal Cr (VI). The adsorbent preparation method in this study is simple, cost-effective, environmental-friendly without using organic solvent. It holds significant promise for large-scale production. This study provides a novel approach for the resource utilization of industrial solid waste PG, achieving the dual objectives of waste recycling and value addition.</div></div>","PeriodicalId":100486,"journal":{"name":"Environmental Surfaces and Interfaces","volume":"3 ","pages":"Pages 122-133"},"PeriodicalIF":0.0,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Younes Dehmani , Dison S.P. Franco , Jordana Georgin , Redouane Mghaiouini , Bouchra Ba Mohammed , Rachid Kacimi , Taibi Lamhasni , Eder C. Lima , Noureddine El Messaoudi , Abouarnadasse Sadik
{"title":"Towards a deeper understanding of the adsorption of methyl orange on a commercial activated carbon: Study of impact factors, isotherm and mechanism","authors":"Younes Dehmani , Dison S.P. Franco , Jordana Georgin , Redouane Mghaiouini , Bouchra Ba Mohammed , Rachid Kacimi , Taibi Lamhasni , Eder C. Lima , Noureddine El Messaoudi , Abouarnadasse Sadik","doi":"10.1016/j.esi.2025.02.002","DOIUrl":"10.1016/j.esi.2025.02.002","url":null,"abstract":"<div><div>This study investigates the use of commercially available activated carbon for the removal of methyl orange from aqueous solutions. The main characteristics of the activated carbon are as follows: BET specific surface area: 641 m²/g; Pore volume: 0.28 cm³ /g; Microporous nature: More than 70 % of the total pore volume are micropores. A systematic approach was adopted to analyze how factors such as contact time, initial pH of the solution, and temperature influence carbon adsorption capacity. A maximum removal capacity value of 100 mg/g with an elimination rate exceeding 98 %. The adsorption behavior of methyl orange was modeled with the statistical physical modeling of the adsorption process using the single trainer model, which provided a better understanding of the adsorption mechanism of methyl orange on activated carbon. This suggests that activated carbon can be an effective adsorbent for the removal of colored compounds from water. The experimental isothermal results encourage the use of this material in the treatment of industrial tannery effluents.</div></div>","PeriodicalId":100486,"journal":{"name":"Environmental Surfaces and Interfaces","volume":"3 ","pages":"Pages 103-111"},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143518989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A novel dynamic biosorption kinetic model based on reactions on the biosorbent surface for biosorption of heavy metal copper by non-living biomass waste tea leaves","authors":"Manami Yanaka, Shiori Nagoya, Yoshinori Kawase","doi":"10.1016/j.esi.2025.02.001","DOIUrl":"10.1016/j.esi.2025.02.001","url":null,"abstract":"<div><div>A novel dynamic biosorption kinetic model was developed by taking account of reactions occurring on the biosorbent surface and applied to quantify the biosorption process of heavy metal copper (Cu) using non-living biomass biosorbent waste tea leaves. The proposed kinetic model is based on the surface complexation mechanism on the surface of waste tea leaves, which consists of two steps, i.e., Step 1: the deprotonation of functional groups and Step 2: the formation of biosorbate complexes with deprotonated functional groups, and the surface precipitation mechanisms. Batch experiments of Cu(II) removal using waste tea leaves were conducted to examine the effects of operating parameters such as initial Cu(II) concentration and solution pH on the dynamic biosorption kinetics of Cu(II). The biosorption capability was found to be relatively low at highly acidic solution pH and intensified with increasing pH. After the Cu(II) removal reached the maximum biosorption capability at pH 5, it was suppressed at a higher solution pH. With increasing solution pH, the number of negatively charged active sites increased due to the facilitation of the deprotonation of functional groups on the surface of waste tea leaves. As a result, the biosorption of Cu(II) through the surface complexation mechanism was further promoted. When the solution pH exceeded 5, the proportion of Cu<sup>2 +</sup> in the solution decreased and the contribution of surface precipitation of Cu(OH)<sub>2</sub> dominated. The proposed biosorption kinetic model based on surface complexation and surface precipitation mechanisms could reasonably simulate the dynamic kinetic of Cu(II) biosorption by waste tea leaves.</div></div>","PeriodicalId":100486,"journal":{"name":"Environmental Surfaces and Interfaces","volume":"3 ","pages":"Pages 90-102"},"PeriodicalIF":0.0,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chee Meng Koe , Swee-Yong Pung , Sumiyyah Sabar , Anwar Ul-Hamid , Wai Kian Tan
{"title":"Growth of CuO rods on kanthal coil via direct heating for photocatalytic degradation of rhodamine B","authors":"Chee Meng Koe , Swee-Yong Pung , Sumiyyah Sabar , Anwar Ul-Hamid , Wai Kian Tan","doi":"10.1016/j.esi.2025.01.004","DOIUrl":"10.1016/j.esi.2025.01.004","url":null,"abstract":"<div><div>This study introduces a novel direct heating (DH) method for immobilizing Cu₂O and CuO nanomaterials onto kanthal coils, offering a scalable and efficient approach to photocatalyst synthesis. The coil achieved 100 % surface coverage within 4–8 min heating duration. Both the Cu₂O and CuO phases are present, and each has a narrow band gap, making them effective reductive photocatalysts. The CuO/coil prepared at 40 W heating power for 8 minutes exhibited Cu₂O particles (1666.67 ± 727.78 nm) and CuO rods (77.77 ± 19.08 nm in diameter), achieving a 21.01 % degradation efficiency for RhB dye under UV light. Despite agglomeration of Cu₂O particles limiting active sites, this method demonstrates simplicity and rapid synthesis compared to conventional techniques. Reusability tests revealed a decline in removal efficiency to 13.24 % after three cycles, attributed to photocatalyst detachment and dye accumulation on active sites. Addressing these challenges with improved adhesion and surface optimization could enhance long-term performance. The DH method shows strong potential for industrial wastewater treatment, offering a cost-effective and scalable solution for degrading organic pollutants.</div></div>","PeriodicalId":100486,"journal":{"name":"Environmental Surfaces and Interfaces","volume":"3 ","pages":"Pages 77-89"},"PeriodicalIF":0.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143387810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Three-dimensional MoS2/graphene aerogel-driven visible-light photocatalysis assisted by persulfate or hydrogen peroxide for rapid degradation of tetracycline","authors":"Chinmayee Das , Tajamul Shafi , Brajesh Kumar Dubey , Shamik Chowdhury","doi":"10.1016/j.esi.2025.01.003","DOIUrl":"10.1016/j.esi.2025.01.003","url":null,"abstract":"<div><div>The integration of various advanced oxidation processes (AOPs) can provide an optimal balance between treatment efficiency and duration, ensuring that wastewater is adequately treated while minimizing costs and maximizing operational performance. In this study, heterogeneous photocatalysis using a molybdenum disulfide/graphene aerogel (MGA) composite was integrated with hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) or persulfate (PS)-assisted AOPs to remove tetracycline (TC), a commonly detected antibiotic contaminant in aquatic environments. Specifically, the study assessed the effects of operating parameters, such as PS/H<sub>2</sub>O<sub>2</sub> concentration, pH, initial pollutant concentration, catalyst dose, and the presence of inorganic anions on TC removal in a systematic manner. It was found that the MGA/PS system exhibited significantly greater degradation activity compared to MGA/H<sub>2</sub>O<sub>2</sub>, pure MGA, PS, and H<sub>2</sub>O<sub>2</sub> alone. Notably, the MGA/PS system achieved complete removal of TC within 60 min of visible-light irradiation under optimized conditions. Furthermore, an average TC removal rate of approximately 85.5 % was observed in real wastewater during the same reaction period. This enhancement was attributed to PS facilitating the generation of free radicals and acting as an electron acceptor, which reduced the recombination of photoinduced charge carriers, thereby improving electron–hole separation efficiency. The outcomes of this study provide valuable insights for developing highly effective techniques for treating antibiotic-laden wastewater through the integration of MGA with PS-based AOPs.</div></div>","PeriodicalId":100486,"journal":{"name":"Environmental Surfaces and Interfaces","volume":"3 ","pages":"Pages 65-76"},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Poushali Chakraborty , Arkaprava Roy , Sampad Sarkar , Avijit Bhowal , Suvendu Manna , Papita Das
{"title":"Synthesis of activated biochar incorporated PVA-silica composite and its application in the adsorption of polycyclic aromatic hydrocarbons from wastewater","authors":"Poushali Chakraborty , Arkaprava Roy , Sampad Sarkar , Avijit Bhowal , Suvendu Manna , Papita Das","doi":"10.1016/j.esi.2025.01.001","DOIUrl":"10.1016/j.esi.2025.01.001","url":null,"abstract":"<div><div>Polycyclic Aromatic Hydrocarbons (PAH) are pervasive pollutants exposed in the environment primarily due to the incomplete combustion of carbonaceous fossil fuels such as coal, crude oil derivatives, and other organic materials such as wood, paper, garbage, tobacco, etc. Secondarily other important industries such as aluminium production, catalytic cracking towers, and motor vehicle emissions also cause huge emissions. Naphthalene is one of the most available PAH, which has several negative impacts on living health. To eliminate naphthalene from wastewater, some physicochemical approaches are being taken in which adsorption is the most established one. In our present study, a novel membrane-like composite was prepared with PVA (Poly Vinyl Alcohol) and Silica nanoparticles which were modified by incorporating activated banana biochar to increase its efficiency. Characterizations like FT-IR, SEM, and EDX were performed to depict various characteristic features of the composite. The removal of naphthalene due to the adsorption process was studied experimentally by a batch study in different varying parametric conditions like different adsorbent dosages, contact time, pollutant concentration, temperature, pH, and agitation speed. From the results, the highest removal percentage was observed as 99.549 % with conditions like an adsorbent dose of 2 g/L, 160 rpm agitation speed, 20 mg/L initial naphthalene concentration, and 303 K temperature after 2 hrs. Mathematical modelling was done to evaluate the adsorption isotherm with the help of Langmuir and Freundlich models. Low cost, biodegradability, availability, and high removal efficiency have made the composite an effective adsorbent for wastewater treatment.</div></div>","PeriodicalId":100486,"journal":{"name":"Environmental Surfaces and Interfaces","volume":"3 ","pages":"Pages 55-64"},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mehdi Eisapour , Rui Huang , Tayebeh Roostaei , Heng Zhao , Jinguang Hu , Zhangxing Chen
{"title":"Sandwich-like heterojunction of NiO-Ni-TiO2 for simultaneous production of hydrogen and value-added products from glycerol photoreforming","authors":"Mehdi Eisapour , Rui Huang , Tayebeh Roostaei , Heng Zhao , Jinguang Hu , Zhangxing Chen","doi":"10.1016/j.esi.2024.12.002","DOIUrl":"10.1016/j.esi.2024.12.002","url":null,"abstract":"<div><div>Achieving sustainable solar energy conversion and storage can be achieved using an alternative approach, namely photocatalytic hydrogen generation. However, the heightened cost of producing green hydrogen is attributed to the nonselective oxidation of sacrificial agents. In this work, a strategic design of a bifunctional photocatalyst that can concurrently produce hydrogen and generate value-added compounds from glycerol is demonstrated. A p-n heterojunction photocatalyst is firstly fabricated by loading NiO nanoparticles onto TiO<sub>2</sub> with different morphologies to examine their effect on hydrogen production performance and glycerol conversion. Then, sandwich-like heterojunction of NiO-Ni-TiO<sub>2</sub> was synthesized by in-situ thermal treatment of NiO-TiO<sub>2</sub> p-n junction. The formation of a collaborative Schottky and p-n (SPN) heterojunction significantly enhances charge separation efficiency, thereby, boosting the activity of glycerol photoreforming to produce hydrogen together with valuable chemicals. By optimizing the morphology and Ni-NiO ratio, approximately 24500 µmolh<sup>−1</sup>g<sup>−1</sup> of hydrogen was delivered together with 58 % of glycerol conversion into dihydroxyacetone and glyceraldehyde. This present work demonstrates a notable illustration of the rational design of bifunctional photocatalyst for solar-driven coproduction of hydrogen and value-added chemicals.</div></div>","PeriodicalId":100486,"journal":{"name":"Environmental Surfaces and Interfaces","volume":"3 ","pages":"Pages 46-54"},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vincent Olukayode Oninla , Kehinde Nurudeen Awokoya , Gabriel Ogunsola Orodepo , Jonathan Oyebamiji Babalola , Ebenezer Oluwole Bankefa , Toluwalope Deborah Okunjoyo , Thelma Udoh
{"title":"Enhancement of the surface properties of oil palm calyx biomass by redox initiated graft copolymerization with methacrylic acid for the adsorption of dyes","authors":"Vincent Olukayode Oninla , Kehinde Nurudeen Awokoya , Gabriel Ogunsola Orodepo , Jonathan Oyebamiji Babalola , Ebenezer Oluwole Bankefa , Toluwalope Deborah Okunjoyo , Thelma Udoh","doi":"10.1016/j.esi.2024.12.001","DOIUrl":"10.1016/j.esi.2024.12.001","url":null,"abstract":"<div><div>Modified biomass from oil palm calyx, an agro-waste, was utilized for the removal of methylene blue (MB) and malachite green (MG) from industrial effluent mimic. Graft copolymerization technique was adopted for the modification process, using methacrylic acid as the functional monomer and Fenton’s reagent as the initiator. Optimum grafting condition was established by varying the Fenton’s reagent composition, grafting time, temperature and biomass mass. About 30 % grafting yield was attained at a 1:200 [Fe<sup>2+</sup>]/[H<sub>2</sub>O<sub>2</sub>] Fenton’s reagent composition, 60℃, 60 min and 1 g biomass mass. Characterization results indicated a successful incorporation of carbonyl group (C<img>O), from the carboxyl group of methacrylic acid, on the surface of the biomass material. Adsorption process showed high dye removal efficiency (over 98 %) at pH 6, 30 mg/L concentration, 90 min and, 50 mg copolymer mass. The sorption data best followed the pseudo-second-order kinetic model (with R<sup>2</sup> > 0.93) and the Redlich-Peterson isotherm (R<sup>2</sup> > 0.94). The negative ΔGº values, obtained at 303 – 333 K for the sorption of MB and MG, indicated feasibility and spontaneity, while those of ΔHº and ΔSº were indication of exothermicity and a process occurring with reduction in randomness at the dye/copolymer interface. Aggregation of the outcome of the various tests portrayed the copolymer as an adsorbent of high physicochemical qualities with good dye adsorbing efficiency. This submission, thereby, highlights the advantages of graft copolymerization technique in the improvement of adsorbent’s properties for wastewater treatment.</div></div>","PeriodicalId":100486,"journal":{"name":"Environmental Surfaces and Interfaces","volume":"3 ","pages":"Pages 33-45"},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}