Colloids and Surfaces C: Environmental Aspects最新文献

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The modified pomegranate peel as an economical and highly effective adsorbent for malachite green dye removal from wastewater 改性石榴皮作为一种经济、高效的吸附剂用于去除废水中的孔雀石绿染料
Colloids and Surfaces C: Environmental Aspects Pub Date : 2024-11-01 Epub Date: 2024-06-25 DOI: 10.1016/j.colsuc.2024.100040
Farzaneh Abbasi , Mohsen Mansouri , Marjan Tanzifi , Farbod Ebrahimi , Amin Sadeghizadeh
{"title":"The modified pomegranate peel as an economical and highly effective adsorbent for malachite green dye removal from wastewater","authors":"Farzaneh Abbasi ,&nbsp;Mohsen Mansouri ,&nbsp;Marjan Tanzifi ,&nbsp;Farbod Ebrahimi ,&nbsp;Amin Sadeghizadeh","doi":"10.1016/j.colsuc.2024.100040","DOIUrl":"https://doi.org/10.1016/j.colsuc.2024.100040","url":null,"abstract":"<div><p>This research investigated the ability of acid-modified pomegranate peel to remove malachite green (MG) dye from aqueous solutions. Pomegranate peel, an abundant agricultural byproduct, was modified using hydrochloric acid to enhance its adsorption capacity. The effects of parameters like particle size, pH, initial MG concentration, contact time, temperature and adsorbent dosage on the dye removal efficiency were studied. Under optimized conditions of pH 8, 40 min contact time, 25°C temperature and 0.01 g/ml adsorbent dose with 5 mg/L MG solution, about 96.8 % dye removal was achieved. Kinetic data fitted well to the pseudo-second order model, indicating chemisorption with electrostatic interactions governing the adsorption. Equilibrium data were best described by the Temkin isotherm model, suggesting a heterogeneous binding energy distribution. Thermodynamic calculations revealed the exothermic and spontaneous nature of MG adsorption. FTIR analysis confirmed introduction of functional groups like carboxyl, amine and alkyl groups on the adsorbent surface after acid modification, enabling interactions with dye cations. SEM images displayed increased surface roughness and porosity for the modified biosorbent relative to the raw form. The acid-modified pomegranate peel proved to be an economical, eco-friendly and effective adsorbent for removing the hazardous cationic dye MG from wastewater. The findings support agricultural waste valorization for environmental remediation applications.</p></div>","PeriodicalId":100290,"journal":{"name":"Colloids and Surfaces C: Environmental Aspects","volume":"2 ","pages":"Article 100040"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949759024000155/pdfft?md5=3595ec08b0ffb8f850b865de36059478&pid=1-s2.0-S2949759024000155-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484417","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}
引用次数: 0
Removal of lead ions onto potassium-type fine-grained zeolite prepared from dry or wet milling treatment 通过干法或湿法研磨处理制备的钾型细粒沸石去除铅离子
Colloids and Surfaces C: Environmental Aspects Pub Date : 2024-11-01 Epub Date: 2024-06-13 DOI: 10.1016/j.colsuc.2024.100038
Fumihiko Ogata , Mao Mitsuno , Noriaki Nagai , Yugo Uematsu , Chalermpong Saenjum , Naohito Kawasaki
{"title":"Removal of lead ions onto potassium-type fine-grained zeolite prepared from dry or wet milling treatment","authors":"Fumihiko Ogata ,&nbsp;Mao Mitsuno ,&nbsp;Noriaki Nagai ,&nbsp;Yugo Uematsu ,&nbsp;Chalermpong Saenjum ,&nbsp;Naohito Kawasaki","doi":"10.1016/j.colsuc.2024.100038","DOIUrl":"10.1016/j.colsuc.2024.100038","url":null,"abstract":"<div><p>Potassium-type zeolite (KZ) was prepared from coal fly ash by hydrothermal activation treatment using potassium hydroxide solution and potassium-type fine-grained zeolite was prepared by dry milling (KZ-D) or wet milling (KZ-W). The effects of the different treatments on the Pb<sup>2+</sup> adsorption performance were assessed. KZ-W resulted in a much smaller particle diameter (0.61 ± 0.12 µm) than KZ-D (1.4 ± 0.48 µm) and KZ (6.5 ± 0.49 µm). KZ-W also realized a higher pore volume, mean pore diameter, and specific surface area, than KZ-D and KZ. Additionally, KZ-W realized a greater Pb<sup>2+</sup> adsorption capacity (242.6 mg/g) than KZ (195.3 mg/g) or KZ-D (188.9 mg/g). The adsorption phenomena were fitted to the Freundlich and Langmuir models to clarify the Pb<sup>2+</sup> adsorption mechanism, and then both models showed a good fit to the experimental data (the correlation coefficients of 0.914–0.996 for Freundlich model and 0.897–0.981 for Langmuir model). Additionally, the ion exchange capability, elemental distribution, and binding energy before and after adsorption were analyzed. The results indicated that the physicochemical characteristics of the tested adsorbent surface affected the Pb<sup>2+</sup> adsorption capacity in the aqueous phase. According to kinetics, the pseudo-second-order model matched the experimental data (the correlation coefficients of 0.996–0.999). The samples also demonstrated selective adsorption of Pb<sup>2+</sup> in a binary solution. The results demonstrated that KZ-W can effectively remove Pb<sup>2+</sup> from the aqueous phase and that it may be a useful tool for preventing contamination of water bodies.</p></div>","PeriodicalId":100290,"journal":{"name":"Colloids and Surfaces C: Environmental Aspects","volume":"2 ","pages":"Article 100038"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141391192","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}
引用次数: 0
Enhancing the photocatalytic and antimicrobial activity of ZnFe2O4 by composite with Ag2WO4 semiconducting material 通过与 Ag2WO4 半导体材料复合提高 ZnFe2O4 的光催化和抗菌活性
Colloids and Surfaces C: Environmental Aspects Pub Date : 2024-11-01 Epub Date: 2024-05-18 DOI: 10.1016/j.colsuc.2024.100037
G.S. Kariyappa Gowda, K.T. Vishnu, K. Prashantha, K.P. Ajeya
{"title":"Enhancing the photocatalytic and antimicrobial activity of ZnFe2O4 by composite with Ag2WO4 semiconducting material","authors":"G.S. Kariyappa Gowda,&nbsp;K.T. Vishnu,&nbsp;K. Prashantha,&nbsp;K.P. Ajeya","doi":"10.1016/j.colsuc.2024.100037","DOIUrl":"10.1016/j.colsuc.2024.100037","url":null,"abstract":"<div><p>In this research article, we have performed the degradation of methylene blue dye (MB) in the presence of ZnFe<sub>2</sub>O<sub>4</sub>/Ag<sub>2</sub>WO<sub>4</sub> photocatalyst. These catalyst materials are prepared by a simple combustion method followed by a solution mixing method. The structure and morphology of prepared composite material are analyzed by using XRD, FTIR, UV-DRS, and scanning electron microscopy. The antimicrobial property of composite material is studied against E. coli and S. aureus food pathogenic bacteria. After the incubation time, the antimicrobial activity of the composite material shows a clear zone of inhibition. This composite photocatalyst is a promising material to increase the degradation percentage of MB (Methylene blue) dye in the presence of UV light. ZnFe<sub>2</sub>O<sub>4</sub>/Ag<sub>2</sub>WO<sub>4</sub> composite material shows 72.72% degradation of the MB dye. The photocatalytic activity of composite material has been performed by varying the catalyst dosage and pH level of the medium used for the degradation process. The role of composite material in the degradation of dye and their increase in the reaction rate has also been discussed. From these results, the ZnFe<sub>2</sub>O<sub>4</sub>/Ag<sub>2</sub>WO<sub>4</sub> composite is a good material to degrade the toxic pollutants in the environment.</p></div>","PeriodicalId":100290,"journal":{"name":"Colloids and Surfaces C: Environmental Aspects","volume":"2 ","pages":"Article 100037"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141143783","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}
引用次数: 0
Antifungal, antibacterial and antioxidant activity of Pinus roxburghii mediated green synthesized zinc and gadolinium doped manganese oxide nanoparticles 松柏介导的绿色合成锌和掺杂钆的氧化锰纳米粒子的抗真菌、抗细菌和抗氧化活性
Colloids and Surfaces C: Environmental Aspects Pub Date : 2024-11-01 Epub Date: 2024-10-03 DOI: 10.1016/j.colsuc.2024.100046
Meena Devi , Sheetal Sharma , Pankaj Kumar , Nikesh Thakur , Gulshan Kumar , Manu Vineet Sharma , Arti Jamwal Sharma , Kuldeep Kumar , Arvind Sharma , Kamal Jeet , Naveen Thakur
{"title":"Antifungal, antibacterial and antioxidant activity of Pinus roxburghii mediated green synthesized zinc and gadolinium doped manganese oxide nanoparticles","authors":"Meena Devi ,&nbsp;Sheetal Sharma ,&nbsp;Pankaj Kumar ,&nbsp;Nikesh Thakur ,&nbsp;Gulshan Kumar ,&nbsp;Manu Vineet Sharma ,&nbsp;Arti Jamwal Sharma ,&nbsp;Kuldeep Kumar ,&nbsp;Arvind Sharma ,&nbsp;Kamal Jeet ,&nbsp;Naveen Thakur","doi":"10.1016/j.colsuc.2024.100046","DOIUrl":"10.1016/j.colsuc.2024.100046","url":null,"abstract":"<div><div>The exploration into the synthesis and characterization of manganese oxide nanoparticles (MO NPs) has garnered considerable attention, driven by their potential applications across various fields, particularly in medicine and biotechnology. This study focuses on investigating the diverse biological functions of Zinc doped (Zn)-MO and Gadolinium doped (Gd)-MO NPs, including their antifungal, antibacterial, and antioxidant properties. The NPs were synthesized using a sustainable green approach incorporating phytochemicals sourced from <em>Pinus roxburghii</em>. XRD confirmed tetragonal structure for both Zn-CuO and Gd-CuO NPs. Examination TEM and SEM-EDS revealed spheroidal NPs with diameters ranging from 8 to 12 nm. Evaluation of antifungal activity exhibited promising outcomes, indicating the capability of both Zn-MO and Gd-MO NPs to hinder fungal growth, suggesting their potential as antifungal agents. Similarly, the antibacterial effectiveness of these NPs was demonstrated by their ability to impede bacterial growth, highlighting their potential in addressing bacterial infections and potentially combating antibiotic resistance. Furthermore, the antioxidant activity of Zn-MO and Gd-MO NPs was assessed, revealing their capacity to scavenge free radicals and alleviate oxidative stress. In summary, the results emphasize the significant biological activities of Zn-MO and Gd-MO NPs, positioning them as promising candidates for further exploration and development in biomedical and pharmaceutical research.</div></div>","PeriodicalId":100290,"journal":{"name":"Colloids and Surfaces C: Environmental Aspects","volume":"2 ","pages":"Article 100046"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442613","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}
引用次数: 0
High-gradient magnetic separation of colloidal uranium oxide particles from soil components in aqueous suspensions 水悬浮液中胶体氧化铀颗粒与土壤组分的高梯度磁分离
Colloids and Surfaces C: Environmental Aspects Pub Date : 2024-11-01 Epub Date: 2023-11-10 DOI: 10.1016/j.colsuc.2023.100023
Joanna McFarlane , Charles Weber , Alexander Wiechert , Sotira Yiacoumi , Costas Tsouris
{"title":"High-gradient magnetic separation of colloidal uranium oxide particles from soil components in aqueous suspensions","authors":"Joanna McFarlane ,&nbsp;Charles Weber ,&nbsp;Alexander Wiechert ,&nbsp;Sotira Yiacoumi ,&nbsp;Costas Tsouris","doi":"10.1016/j.colsuc.2023.100023","DOIUrl":"10.1016/j.colsuc.2023.100023","url":null,"abstract":"<div><p><span>The separation of uranium oxide (UO</span><sub>2</sub>) particles from soil-surrogate particles in aqueous suspensions was achieved using filtration enhanced by a magnetic field. Enhanced attraction of paramagnetic UO<sub>2</sub><span> colloids to a ferromagnetic stainless-steel filter placed in a strong magnetic field arises because of the positive magnetic susceptibility of the particles and the high-gradient field generated near ferromagnetic fibers. Enhanced uptake of smaller particles over larger ones occurs through Brownian motion that promotes the collision of particles with the ferromagnetic fibers of the filter. Hence, this work focused on UO</span><sub>2</sub> particles in the colloidal size range. Experiments used a water-cooled electromagnet and an array of permanent magnets. Chemical analysis showed that the magnetic field increased the capture efficiency of uranium particles from a range of 27–53% with the magnet off up to 98% with the magnet on after a single pass of the suspension through the filter. The recovery of the UO<sub>2</sub> particles from the filter, however, was more difficult to achieve. Small amounts of UO<sub>2</sub>, together with significant amounts of background SiO<sub>2</sub> particles, were removed from the filter during a first flush with the magnetic field on. A much larger recovery of UO<sub>2</sub> was not observed until a second out-of-field flush was performed, which also released some SiO<sub>2</sub>. The degree to which particle separation was enhanced through the use of multi-stage filtration compared to single pass-through filtration was also examined. A design was suggested that could be used to optimize the separation efficiency for a continuous process.</p></div>","PeriodicalId":100290,"journal":{"name":"Colloids and Surfaces C: Environmental Aspects","volume":"2 ","pages":"Article 100023"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135609192","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}
引用次数: 0
Insights on the synthesis of iron-oxide nanoparticles and the detection of iron-reducing genes from soil microbes 氧化铁纳米粒子的合成及土壤微生物铁还原基因检测的启示
Colloids and Surfaces C: Environmental Aspects Pub Date : 2024-11-01 Epub Date: 2023-11-28 DOI: 10.1016/j.colsuc.2023.100025
Oluwafemi Bamidele Daramola , Reama Chinedu George , Nkem Torimiro , Afusat Ajoke Olajide
{"title":"Insights on the synthesis of iron-oxide nanoparticles and the detection of iron-reducing genes from soil microbes","authors":"Oluwafemi Bamidele Daramola ,&nbsp;Reama Chinedu George ,&nbsp;Nkem Torimiro ,&nbsp;Afusat Ajoke Olajide","doi":"10.1016/j.colsuc.2023.100025","DOIUrl":"https://doi.org/10.1016/j.colsuc.2023.100025","url":null,"abstract":"<div><p><span>This study explores the potential of some soil bacteria in the synthesis of iron oxide<span> nanoparticles (IONPs), highlighting their advantages in terms of iron uptake and tolerance capacity. Soil samples collected from a metal fabricating workshop were successively screened in nutrient broth containing 1% iron salts (Fe</span></span><sub>2</sub>O<sub>3</sub>, FeCl<sub>3,</sub> and FeSO<sub>4</sub><span>) following a standard microbiological sampling technique. The recovered bacterial isolates (persister cells) were identified using polymerase chain reaction (PCR) and 16S rRNA sequencing. Ten bacterial isolates identified as </span><em>Sporosarcina luteola, Bacillus badius</em> (2), <em>Bacillus subtilis</em> (2), <span><em>Bacillus tropicus, Bacillus cereus, </em><em>Klebsiella</em><em> pneumoniae, Klebsiella quasipneumoniae</em></span> and <em>Klebsiella africana</em> were recovered. The method reports that six of the bacterial isolates extracellularly synthesize IONPs and the result from the energy dispersion x-ray (EDX) spectral analysis indicated varying weight percentages of bio-reduced iron by <em>Bacillus subtilis-</em>A12 (48.59%), <em>Klebsiella quasipneumoniae</em> (39.99%), <em>Bacillus subtilis-</em>B1 (39.97%), <em>Bacillus cereus</em> (38.62%), <em>Bacillus badius</em> (33.79%) and <em>Klebsiella africana</em> (32.61%). The IONPs exhibited absorbance peaks in the range of 250–350 nm, with a mean area size estimated between 31–72 nm using ImageJ software. Additionally, the presence of iron reductase (<em>fhu</em>) and cysteine desulfurase (<em>suf</em>) genes were detected in the recovered <em>Bacillus</em> and <em>Klebsiella</em> species through PCR analysis. This study has provided valuable insights into the physiology and genomic functions essential for microbial synthesis of IONPs and their relevance to nano-bioremediation.</p></div>","PeriodicalId":100290,"journal":{"name":"Colloids and Surfaces C: Environmental Aspects","volume":"2 ","pages":"Article 100025"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138557924","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}
引用次数: 0
Enhanced photocatalytic degradation activity of titanium dioxide by adsorbing aromatic amines through N-bonding 通过 N 键吸附芳香胺增强二氧化钛的光催化降解活性
Colloids and Surfaces C: Environmental Aspects Pub Date : 2024-11-01 Epub Date: 2024-10-03 DOI: 10.1016/j.colsuc.2024.100047
Shivam Patel , Sagnik Mukherjee , Mahesh Neem , Subhadip Neogi , K.L. Ameta , Arvnabh Mishra , M.P. Deshpande , Manish Kumar Mishra
{"title":"Enhanced photocatalytic degradation activity of titanium dioxide by adsorbing aromatic amines through N-bonding","authors":"Shivam Patel ,&nbsp;Sagnik Mukherjee ,&nbsp;Mahesh Neem ,&nbsp;Subhadip Neogi ,&nbsp;K.L. Ameta ,&nbsp;Arvnabh Mishra ,&nbsp;M.P. Deshpande ,&nbsp;Manish Kumar Mishra","doi":"10.1016/j.colsuc.2024.100047","DOIUrl":"10.1016/j.colsuc.2024.100047","url":null,"abstract":"<div><div>Narrowing the wide band gap of TiO<sub>2</sub> (∼3.2 eV) to enhance its visible light efficiency is crucial for advancing photocatalytic degradation of organic pollutants in industrial wastewater. In this study, we achieved band gap reduction and slowed recombination rates by adsorbing some aromatic amines, like aniline and its electron-donating derivatives, onto TiO<sub>2</sub>. The predominantly present N-bonded amine species reduced the band gap and decelerated charge carriers’ recombination, enhancing photocatalytic degradation under visible light. In contrast, the amine with electron-withdrawing group is adsorbed as only H-bonded species, which showed no improvement in photocatalytic activity, performing similarly to pristine TiO<sub>2</sub>. This surface modification strategy offers potential for creating visible light-driven photocatalysts for effective degradation of organic pollutants in water.</div></div>","PeriodicalId":100290,"journal":{"name":"Colloids and Surfaces C: Environmental Aspects","volume":"2 ","pages":"Article 100047"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417208","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}
引用次数: 0
Removal of trivalent and hexavalent chromium from aqueous solution using fiber of Agave americana plant and its modified forms 利用龙舌兰植物纤维及其改良形式去除水溶液中的三价铬和六价铬
Colloids and Surfaces C: Environmental Aspects Pub Date : 2024-11-01 Epub Date: 2024-01-17 DOI: 10.1016/j.colsuc.2024.100029
R.M.H. Rathnayaka , N. Priyantha , W.S.S. Gunathilake
{"title":"Removal of trivalent and hexavalent chromium from aqueous solution using fiber of Agave americana plant and its modified forms","authors":"R.M.H. Rathnayaka ,&nbsp;N. Priyantha ,&nbsp;W.S.S. Gunathilake","doi":"10.1016/j.colsuc.2024.100029","DOIUrl":"https://doi.org/10.1016/j.colsuc.2024.100029","url":null,"abstract":"<div><p><span>Chromium contamination due to industrial effluents<span> has been recognized as one of the major problems since chromium compounds<span> affect human health leading to adverse health effects of humans. Among many adsorbents that have been experimented with, cellulose fibers have been identified to be very effective for chromium removal. </span></span></span><em>Agave americana</em><span>, a plant native to Central America, is rich in cellulose fibers, which consist of esters, ethers of alcohol derivatives of cellulose showing coordinating ability toward heavy metal ions<span><span>. This study is aimed at optimization of solution parameters, such as shaking time, settling time, solution pH and adsorbent dosage, while varying one parameter at a time throughout a broad range keeping others constant, for most efficient adsorption of Cr(III) species, followed by investigation of equilibrium and kinetics aspects under optimized conditions. Adsorption of Cr(III) from solutions of different concentrations on untreated AAF fulfills the requirements of the Langmuir adsorption isotherm at equilibrium which is probably due to the fine </span>fibrous nature of the biosorbent. Moreover, the extent of Cr(III) on </span></span><em>Agave americana</em><span> fiber (AAF), investigated during the early stages of adsorption, leads to the validity of the pseudo first-order kinetics with a relatively high regression coefficient. Although untreated AAF shows a strong affinity toward Cr(III), its adsorption ability toward Cr(VI) is undetectable, suggesting that surface modification of AAF be performed. In this context, EDTA-treated AAF demonstrates a significant improvement on Cr(VI) removal, indicating the possibility of extending the present investigation for removal of chromium species under industrial setting.</span></p></div>","PeriodicalId":100290,"journal":{"name":"Colloids and Surfaces C: Environmental Aspects","volume":"2 ","pages":"Article 100029"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139548926","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}
引用次数: 0
Construction of coal fly ash-based spherical grain adsorbents and their adsorption characteristics on phenolic compounds 粉煤灰基球形颗粒吸附剂的构建及其对酚类化合物的吸附特性
Colloids and Surfaces C: Environmental Aspects Pub Date : 2024-11-01 Epub Date: 2024-07-07 DOI: 10.1016/j.colsuc.2024.100042
Xiaoya Jia , Yongjun Liu , Zhuangzhuang Yang , Aining Zhang , Pan Liu , Zhe Liu
{"title":"Construction of coal fly ash-based spherical grain adsorbents and their adsorption characteristics on phenolic compounds","authors":"Xiaoya Jia ,&nbsp;Yongjun Liu ,&nbsp;Zhuangzhuang Yang ,&nbsp;Aining Zhang ,&nbsp;Pan Liu ,&nbsp;Zhe Liu","doi":"10.1016/j.colsuc.2024.100042","DOIUrl":"10.1016/j.colsuc.2024.100042","url":null,"abstract":"<div><p>Addressing the significant emissions and severe pollution hazards posed by coal fly ash waste in the coal chemical industry, as well as the challenges in recovering phenolic substances from coal chemical wastewater, this study utilized coal fly ash as a raw material to construct two types of spherical grain adsorbents: coal fly ash and coal gangue spherical grain (CFAGsg) and coal fly ash and pyrite spherical grain (CFAPsg). The adsorption performance of CFAGsg and CFAPsg towards phenolic substances in coal chemical wastewater was investigated. The research results demonstrated that CFAGsg and CFAPsg exhibited adsorption capacities of 20.31 mg/L and 30.42 mg/L for phenol, respectively, and maintained stable adsorption performance even after multiple regeneration cycles. Further analysis using kinetic, isotherm, and thermodynamic models, along with various characterization techniques, revealed that the adsorption of phenol onto CFAGsg and CFAPsg was primarily governed by physical and chemical adsorption, involving an endothermic reaction. Moreover, the study on the adsorption mechanism of phenol revealed that the adsorption behavior of CFAGsg and CFAPsg was mainly driven by pore filling, π-π stacking, and hydrogen bonding. Additionally, hydrophobic interactions were involved in the adsorption of phenol onto CFAGsg, while surface complexation forces played a role in the adsorption of phenol onto CFAPsg. Overall, the research findings provide vital theoretical support and practical application prospects for the high-value utilization of coal fly ash and the clean production of the coal chemical industry.</p></div>","PeriodicalId":100290,"journal":{"name":"Colloids and Surfaces C: Environmental Aspects","volume":"2 ","pages":"Article 100042"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141691700","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}
引用次数: 0
Erratum to “Modelling the reaction of uranium with carboxylic groups on surfaces through mono- and multi-dentate surface complexes on the basis of pH and redox potential” [Colloids Surf. C: Environ. Asp. 1 (2023) 100002] 对 "基于 pH 值和氧化还原电位通过单齿和多齿表面络合物模拟铀与表面羧基的反应 "的勘误 [Colloids Surf. C: Environ. Asp. 1 (2023) 100002]
Colloids and Surfaces C: Environmental Aspects Pub Date : 2024-11-01 Epub Date: 2024-05-29 DOI: 10.1016/j.colsuc.2024.100036
Steven McGowan, Claude Degueldre, Farid Aiouache
{"title":"Erratum to “Modelling the reaction of uranium with carboxylic groups on surfaces through mono- and multi-dentate surface complexes on the basis of pH and redox potential” [Colloids Surf. C: Environ. Asp. 1 (2023) 100002]","authors":"Steven McGowan,&nbsp;Claude Degueldre,&nbsp;Farid Aiouache","doi":"10.1016/j.colsuc.2024.100036","DOIUrl":"https://doi.org/10.1016/j.colsuc.2024.100036","url":null,"abstract":"","PeriodicalId":100290,"journal":{"name":"Colloids and Surfaces C: Environmental Aspects","volume":"2 ","pages":"Article 100036"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949759024000118/pdfft?md5=47a5fbe595b53af396e4ae2e647f91a3&pid=1-s2.0-S2949759024000118-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141163315","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}
引用次数: 0
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