Adsorption Science & Technology is a peer-reviewed, open access journal devoted to studies of adsorption and desorption phenomena, which publishes original research papers and critical review articles, with occasional special issues relating to particular topics and symposia.

Adsorption Science and Technology is a peer-reviewed, open access journal dedicated to the study of adsorption and desorption phenomena. It publishes original research papers and critical review articles, with occasional special issues related to specific topics and symposia.

《Adsorption Science and Technology》是一本经过同行评审的开放获取期刊，专注于吸附和解吸现象的研究。该期刊发表原创研究论文和重要的综述文章，并不定期推出与特定主题和研讨会相关的特刊。

Adsorption Science and Technology

The production of biofuels has had a great impact on climate change and the reduction of the use of fossil fuels. There are different technologies used for the separation and production of biofuels, which allow having compounds such as ethanol, methane, oxygen, and hydrogen, one of these promising technologies is the Pressure Swing Adsorption process (PSA). The objectives of this article focus on the production and purification of compounds that achieve purities of 99.5% bioethanol, 94.85% biohydrogen, 95.00% medical oxygen, and 99.99% biomethane through the PSA process; also, a significant review is contemplated to identify the different natural and synthetic adsorbents that have greater adsorption capacity, the different configurations in which a PSA operates are studied and identified, and the different mathematical models that describe the dynamic behavior of all the variables are established that interact in this PSA process, parametric studies are carried out in order to identify the variables that have the greatest effect on the purity obtained. The results obtained in this review allow facilitating the calculation of parameters, the optimization of the process, the automatic control to manipulate certain variables and to achieve the rejection of disturbances to have a recovery and production of biofuels with a high degree of purity.

Jesse Y. Rumbo Morales

Gerardo Ortiz-Torres

Rodolfo Omar Domínguez García

Carlos Alberto Torres Cantero

Manuela Calixto Rodriguez

Estela Sarmiento-Bustos

Edén Oceguera-Contreras

Alberto Arturo Flores Hernández

Julio César Rodríguez Cerda

Yehoshua Aguilar Molina

Mario Martínez García

Adsorption Science & Technology

Review of the Pressure Swing Adsorption Process for the Production of Biofuels and Medical Oxygen: Separation and Purification Technology

生物燃料和医用氧气生产中的变压吸附工艺回顾：分离与纯化技术

The increasing environmental concerns associated with textile dye pollution necessitate the development of sustainable and eco-friendly treatment methods. Among various natural biosorbents, Avicennia marina (true mangrove) emerges as a promising candidate due to its robust growth in coastal ecosystems and its potential for dye adsorption. This research delves into the feasibility of employing A. marina as a green biosorbent for the decolorization of methyl red (MR), a prevalent textile dye. Through comprehensive experimentation, we examined the effects of various parameters, including the contact time (20–120 min), pH (1–10), temperature, dose (25–150 g/L), and initial dye concentration (20–600 mg/L), on the adsorption capacity of the biosorbent. Characterization of the prepared biosorbent was done using atomic force microscopy(AFM), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction analysis (XRD). The FTIR results show phenobarbitone containing OH, –CH, –NH 2 , COOH, –CO, C=C=N, NO, and C=C groups. SEM image indicated long-fiber-bundle and honeycomb-structure parenchyma cell structure found between 1 µm and 2 µm, and XRD peaks exhibited hemicellulose at 2Ɵ=15.01 and cellulose at 2Ɵ=22.03. A. marina exhibits excellent adsorption capacity for MR (73% decolorization at a concentration of 500 ppm occurred in highly acidic conditions (pH = 1) after 75 min of contact time), making it a promising candidate for industrial wastewater treatment. The study emphasizes pseudo-second-order kinetics and the Freundlich adsorption isotherm as the best-fitted model for MR adsorption. Furthermore, the adsorbent demonstrated a commendable removal efficiency for MR dye in actual water samples. The removal efficiency of dye in industrial wastewater, CETP, and Sabarmati river discharge is 67.18%, 82.07%, and 77.55% respectively, with a time duration of 20–120 min. The findings underscore the potential of harnessing natural resources like A. marina for sustainable water management, contributing to the broader goal of achieving zero-waste economies.

Supriya Vaish

Bhawana Pathak

Harnessing potentials of Avicennia marina (true mangrove) as green biosorbent for decolorization of methyl red dye

利用白骨壤（真红树）作为绿色生物吸附剂去除甲基红染料的潜力

This manuscript analyzes the valorization of agricultural wastes as heavy metal adsorbents and their eco-friendly final disposal as mineral admixtures to manufacture cement-based construction materials. The adsorption properties of nutshell, pistachio shell, and agave fiber for the removal of Pb 2+ and Ni 2+ from aqueous solution were analyzed under different operating scenarios (i.e., pH, temperature, waste dosage, CaCO 3 concentration). Taguchi L9 experimental design was applied to identify the best removal conditions for both heavy metal ions. The maximum experimental adsorption capacities of Ni 2+ were 14.8, 17.8, and 16.4 mg/g for pistachio shell, nutshell, and agave fiber, respectively, whereas the maximum Pb 2+ adsorption capacities of these residues were 6.25, 16.25, and 103.5 mg/g. Adsorption studies showed that CaCO 3 concentration of aqueous solutions affected the removal of these heavy metal ions. However, these agricultural residues showed a competitive removal performance under different water hardness conditions. On the other hand, the setting and compressive strength of cement paste samples containing these residues loaded with heavy metals (i.e., as mineral admixtures) were also investigated. The results indicated that the setting process of the cement paste samples was accelerated when the agave fiber was used in its natural form (without heavy metals), as well as when the pistachio shell and nutshell were saturated with heavy metals. These findings were associated with the agricultural residue structure, which allowed better adherence to the cement particles by hydrating the elongated form of the agave fiber and the globular form of the nutshell and pistachio shell. Finally, the compressive strength of cement-based specimens was evaluated at 7, 14, and 28 days after their preparation. The results showed that the cement paste samples incorporating nutshell had a higher compressive strength than those of the pistachio shell and the agave fiber because of the high lignin content in the nutshell. This circular economy approach for the valorization and final disposal of agricultural wastes is attractive to face their waste management problem, and the secondary pollution problem generated by the spent adsorbents used in water treatment.

M.R. Moreno-Virgen

K.A. Rodríguez-García

A. Bonilla-Petriciolet

H.E. Reynel-Ávila

F.J. Villalobos-Delgado

D.I. Mendoza-Castillo

O.F. González-Vázquez

J.A. Ortiz-Lozano

A circular economy-based valorization of agricultural residues to remove heavy metals from water: Adsorption and final disposal strategy

基于循环经济的农业废弃物重金属去除水体吸附及最终处置策略

Retracted: Surface State Treatment of Carbon Dots Using Sulphur Dioxide Isotherm

撤稿：利用二氧化硫等温线处理碳点的表面状态

Thorium is a promising nuclear fuel; however, even a small amount in nuclear wastewater can cause significant radioactive pollution. Therefore, it is urgent to develop effective adsorbents for the efficient removal of thorium to solve this problem. Herein, the phytic acid modification of carboxylated Zirconium-based metal-organic framework materials (UiO-66-COOH-PA) has been obtained by rapid high-temperature carbonization, which exhibits excellent performance in removing thorium (IV) in acidic aqueous solutions. The maximum adsorption capacity of UiO-66-COOH-PA-2 (with 40% mass ratio of phytic acid) in solution reaches 315.5 mg/g at a pH of 4, which is more than twice that of the unmodified Zr-based metal organic framework (MOF) material. The adsorption kinetics of UiO-66-COOH-PA on thorium has been analyzed using two different isothermal adsorption models, the Langmuir and Freundlich isotherm adsorption models. It turns out that the Freundlich model is more suitable for the data. The thorium adsorption process reaches dynamic equilibrium very quickly, while the adsorption dynamics of UiO-66-COOH-PA on thorium follows the pseudo-second-order adsorption kinetic model. The excellent adsorption performance of UiO-66-COOH-PA-2 at low pH values indicates that adsorption material containing phosphorus is suitable for the removal of thorium especially in acidic systems. It also exhibits excellent selectivity (up to 90.2%) for Th(IV) adsorption in the presence of several coexisting rare-earth ions. Overall, the integration of phosphorus-modified in Zr-MOFs represents a significant advancement in thorium adsorption technology, offering a pathway toward more effective management of radioactive acidic waste liquid.

Yinghao Zhuang

Shuai Sun

Kai Jia

Lei Shi

Xiangshan Yang

Phosphorus-modified Zr-based metal-organic framework materials for their effective removal of thorium from aqueous solutions

磷修饰锆基金属有机框架材料对水溶液中钍的有效去除

Ceratonia siliqua pod biochar sample (CBC) was generated in this work from C. siliqua (carob pod waste) biomass (CBM) by slow pyrolysis for 5h at 400°C as an alternative low-cost biosorbent for the removal of Cr(VI). The biosorption parameters that were adjusted were the initial pH (2.0–10.0), temperature (30°C, 40°C, and 50°C), biosorbent dose (0.01–0.03 g/50 mL), initial Cr(VI) concentration (10–100 mg/L), and contact period (0–360 min). The interaction between the surface functional groups on the CBM and CBC and the Cr(VI) ions was found to be the primary mechanism for Cr(VI) sorption via surface complexation and electrostatic interactions, according to the investigation of the pH influence. The Langmuir isotherm was shown to be more well-fitting than the Freundlich and Dubinin-Radushkevich isotherms for the concentration range of 10 to 100 mg/L. The testing results indicated a sorption capacity of 90.909 mg/g of CBM and 131.579 mg/g of CBC. According to kinetic investigations, the absorption of Cr(VI) ions onto CBM and CBC was defined in pseudo-second order. The findings of thermodynamic investigations showed that the biosorption of Cr(VI) ions onto CBM and CBC was an exothermic, spontaneous process. These findings demonstrated that, even for high concentrations of Cr(VI) in industrial wastewater, CBM and CBC could be viable, affordable alternatives as adsorbents.

Yousef Al-Dalahmeh

Imad Hamadneh

Ghaida Aburumman

Ahmed Al-Mobydeen

Marya Alkhawaldeh

Akram Abu Shawer

Rania Ahmed

Muayad Esaifan

Ammar H. Al-Dujaili

Biosorption of hexavalent chromium by biochar prepared from the Ceratonia siliqua pod: Kinetic, equilibrium, and thermodynamics studies

六价铬的生物吸附：由Ceratonia siliqua荚果制备的生物炭的吸附动力学、平衡及热力学研究

This study investigates the efficacy of environmentally friendly silica-based nanocomposites, SiO 2 -Fe 3 O 4 and SiO 2 -ZnO, for removing Ibuprofen (IBU) from aqueous solutions. The synthesized nanocomposites were characterized using various techniques, such as SEM, TEM, EDS, and FTIR. The adsorption capabilities of IBU onto these nanocomposites were explored through comparative analysis, focusing on factors such as pH, initial pollutant concentration, contact time, and temperature. Results reveal that the adsorption process is pH-dependent, and the lower pH levels enhance the adsorption process. The IBU removal process is faster with SiO 2 -Fe 3 O 4 compared to SiO 2 -ZnO. Kinetic modeling suggests a pseudo-second-order mechanism [Formula: see text] for IBU adsorption onto the surfaces of both adsorbents. Langmuir and Freundlich isotherms were employed and demonstrated to analyze the equilibrium data. The Langmuir model revealed a higher maximum adsorption capacity for SiO 2 -Fe 3 O 4 [Formula: see text] than SiO 2 -ZnO [Formula: see text]. Thermodynamic analysis indicates a chemisorption mechanism for SiO 2 -ZnO and a physisorption mechanism for IBU molecules on the surface of SiO 2 -Fe 3 O 4 . In addition, the standard thermodynamic parameters for the adsorption process indicate that IBU adsorption via both nanocomposites is exothermic, resulting in reduced entropy, and occurs spontaneously. This research introduces silica-based nanocomposites with Fe 3 O 4 nanoparticles for efficient Ibuprofen removal from aqueous solution. The magnetic properties allow easy separation and reusability, enhancing treatment effectiveness. The study offers valuable insights for improving water treatment strategies with potential industrial applications.

Laila A. Khalil

Mohammed H. Al-Jabari

Saleh M. Sulaiman

Efficient removal of ibuprofen from aqueous solutions using silica-based nanocomposites: A comparative study

基于硅的纳米复合材料对水中布洛芬的高效去除：一项比较研究

Abbreviation	Adsorp. Sci. Technol.
Journal Impact	2.75
Quartiles(Global)	ENGINEERING, CHEMICAL(Q2)

ISSN	0263-6174, 2048-4038
h-index	51

Publication Information	Publisher: SAGE Publications Ltd，Publishing cycle: Monthly，Journal Type: journal，Open Access Journals: Yes
Basic data	Year of publication: 1989，Proportion of original research papers: 93.01%，Self Citation Rate:10.70%， Gold OA Rate: 91.22%
Journal Fees	$1500Details
Average review cycle	网友分享经验：平均4.5个月
Average recruitment ratio	网友分享经验：容易

Adsorption Science and Technology

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Review of the Pressure Swing Adsorption Process for the Production of Biofuels and Medical Oxygen: Separation and Purification Technology

Harnessing potentials of Avicennia marina (true mangrove) as green biosorbent for decolorization of methyl red dye

A circular economy-based valorization of agricultural residues to remove heavy metals from water: Adsorption and final disposal strategy

Retracted: Surface State Treatment of Carbon Dots Using Sulphur Dioxide Isotherm

Phosphorus-modified Zr-based metal-organic framework materials for their effective removal of thorium from aqueous solutions

Biosorption of hexavalent chromium by biochar prepared from the Ceratonia siliqua pod: Kinetic, equilibrium, and thermodynamics studies

Harnessing potentials of Avicennia marina (true mangrove) as green biosorbent for decolorization of methyl red dye

A circular economy-based valorization of agricultural residues to remove heavy metals from water: Adsorption and final disposal strategy

Phosphorus-modified Zr-based metal-organic framework materials for their effective removal of thorium from aqueous solutions

Efficient removal of ibuprofen from aqueous solutions using silica-based nanocomposites: A comparative study